Riccardo Zamboni

Assistant professor – RDT

Riccardo Zamboni received his Ph.D. in Physics from the University of Padova with a thesis titled “Study of light driven phenomena for optofluidic applications in Lab-On-a-Chip platforms in lithium niobate”. His Ph.D. was certified with the label “Doctor Europaeus”, and was supervised by Prof. Sada (University of Padova) and Prof. Mathieu Chauvet, Université de Franche-Comté, where part of his research was conducted.

From 2020 to 2022, he worked as a Postdoctoral Researcher in the Nonlinear Photonics group at the Institute of Applied Physics, University of Münster. In January 2023, he was awarded with a Walter Benjamin position to pursue his independent research project, “Microfluidic Droplet dynamics Actuated by Light‐Induced Virtual Electrodes ‐ µDrop ALIVE”, financed by Deutsche Forschunggemeinschaft‐DFG. In March 2025, he joined the Free University of Bozen-Bolzano as an assistant professor at the Faculty of Engineering.

Publications:

2025

R. Zamboni, D. Ray, C. Denz, and J. Imbrock, “Optoelectric-driven wetting transition on artificially micropatterned surfaces with long-range virtual electrodes,” Advanced materials interfaces, vol. 12, iss. 1, p. 2400459, 2025.
[Bibtex]

@article{https://doi.org/10.1002/admi.202400459,
abstract = {Abstract The manipulation of droplets and wetting properties is crucial in many applications that involve surface-liquid interactions, especially on artificial superhydrophobic substrates. This study presents an active optoelectronic method to achieve transport and transition between two wetting states on patterned surfaces, namely Cassie–Baxter (CB) and Wenzel (W). The approach employs a photovoltaic iron-doped lithium niobate crystal placed on the bottom of a micropatterned substrate without any adhesive or sticky bonding. Taking advantage of the bulk photovoltaic effect, charge separation can be induced by light inside the crystal, thus leading to virtual electrodes. The long-range interaction between these virtual electrodes and the droplets on the top of the substrate allows for transitions between wetting states and droplet transport. Superhydrophobic wetting transitions between Cassie–Baxter and Wenzel are observed on different substrates using this technique. The forces acting on the droplet that cause the transition are determined numerically. The evolution of droplet deformation and contact angle during the generation of the virtual electrode depends on the shape and intensity of the light beam used for photoinduction, as well as on the compositional properties of the crystal.},
added-at = {2025-09-08T09:15:43.000+0200},
author = {Zamboni, Riccardo and Ray, Debdatta and Denz, Cornelia and Imbrock, Jörg},
biburl = {https://www.bibsonomy.org/bibtex/2d80e913dfb6f63d375e11a838155912d/ric_zamboni},
doi = {https://doi.org/10.1002/admi.202400459},
eprint = {https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/admi.202400459},
interhash = {90cd4d5d337a5f328538cd64e58ab24c},
intrahash = {d80e913dfb6f63d375e11a838155912d},
journal = {Advanced Materials Interfaces},
keywords = {crystal, electrodes ferroelectric myown, opto-electrowetting, state, superhydrophobic virtual},
number = 1,
pages = 2400459,
timestamp = {2025-09-08T09:44:31.000+0200},
title = {Optoelectric-Driven Wetting Transition on Artificially Micropatterned Surfaces With Long-Range Virtual Electrodes},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/admi.202400459},
volume = 12,
year = 2025
}

D. Dzikonski, R. Zamboni, A. Bandyopadhyay, D. Paul, R. Wedlich-Söldner, C. Denz, and J. Imbrock, “Lab-on-a-chip device for microfluidic trapping and tirf imaging of single cells,” Biomedical microdevices, vol. 27, iss. 12, p. 12, 2025.
[Bibtex]

@article{Dzikonski2025,
abstract = {Total internal reflection fluorescence (TIRF) microscopy is a powerful imaging technique that visualizes the outer surface of specimens in close proximity to a substrate, yielding crucial insights in cell membrane compositions. TIRF plays a key role in single-cell studies but typically requires chemical fixation to ensure direct contact between the cell membrane and substrate, which can compromise cell viability and promote clustering. In this study, we present a microfluidic device with structures designed to trap single yeast cells and fix them in direct contact with the substrate surface to enable TIRF measurements on the cell membrane. The traps are fabricated using two-photon polymerization, allowing high-resolution printing of intricate structures that encapsulate cells in all three dimensions while maintaining exposure to the flow within the device. Our adaptable trap design allows us to reduce residual movement of trapped cells to a minimum while maintaining high trapping efficiencies. We identify the optimal structure configuration to trap single yeast cells and demonstrate that trapping efficiency can be tuned by modifying cell concentration and injection methods. Additionally, by replicating the cell trap design with soft hydrogel materials, we demonstrate the potential of our approach for further single-cell studies. The authors have no relevant financial or non-financial interests to disclose and no competing interests to declare.},
added-at = {2025-09-08T09:15:43.000+0200},
author = {Dzikonski, Dustin and Zamboni, Riccardo and Bandyopadhyay, Aniket and Paul, Deepthi and Wedlich-Söldner, Roland and Denz, Cornelia and Imbrock, Jörg},
biburl = {https://www.bibsonomy.org/bibtex/2a228aa7dc39e9870c48bd39631cea81c/ric_zamboni},
doi = {https://doi.org/10.1002/adom.202403457},
eprint = {https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/adom.202403457},
interhash = {96c6a6e21e81f8ef584f6f9f12cd5942},
intrahash = {a228aa7dc39e9870c48bd39631cea81c},
journal = {Biomedical Microdevices},
keywords = {crystals, effect light liquid lithium modulation, niobate, optofluidics, photovoltaic},
number = 12,
pages = 12,
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Lab-on-a-chip device for microfluidic trapping and TIRF imaging of single cells},
url = {https://doi.org/10.1007/s10544-025-00739-0},
volume = 27,
year = 2025
}

D. Dzikonski, E. Bekker, R. Zamboni, D. Ciechanska, A. Schwab, C. Denz, and J. Imbrock, “Hybrid microfluidic chip design with two-photon polymerized protein-based hydrogel microstructures for single cell experiments,” Advanced materials technologies, vol. 10, iss. 9, p. 2401571, 2025.
[Bibtex]

@article{https://doi.org/10.1002/admt.202401571,
abstract = {Abstract Although hydrogels are among the most promising materials for a huge variety of biomimicking and tissue engineering applications, conventional materials such as polydimethylsiloxane (PDMS) still outweigh hydrogels in terms of processability for the production of microfluidic devices. Hence, incorporating hydrogel components inside conventional PDMS-based microfluidic chips is a promising approach to take advantage of the many possibilities to utilize hydrogels, while maintaining standard properties of microfluidic devices in terms of mechanical stability. Microfluidic chips produced by standard soft lithography are combined with high-resolution protein-based hydrogel elements fabricated by two-photon polymerization (2PP). Those hybrid chips are used to distinguish mechanical properties of different cell phenotypes by injecting pancreatic cancer cells inside the device and investigate mechanical interactions with the hydrogel microstructures. The Young's modulus of blocks printed at different experimental conditions is determined by atomic force microscopy measurements. To showcase the high 3D resolution of the presented fabrication method, fully 3D fibrous meshes are printed with different configurations inside microchannels. By measuring the velocity and circularity of pancreatic cancer cells that pass through meshes of varying densities, the impact on the cell flow is determined. Furthermore, the hydrogel precursor solution is successfully removed and the meshes are immersed in phosphate buffered saline.},
added-at = {2025-09-08T09:15:43.000+0200},
author = {Dzikonski, Dustin and Bekker, Elena and Zamboni, Riccardo and Ciechanska, Dominika and Schwab, Albrecht and Denz, Cornelia and Imbrock, Jörg},
biburl = {https://www.bibsonomy.org/bibtex/236f23f18a345524e4139a2f6afdd9fa6/ric_zamboni},
doi = {https://doi.org/10.1002/admt.202401571},
eprint = {https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/admt.202401571},
interhash = {54e0e9b863fad4feb2cb81d1a05baa3d},
intrahash = {36f23f18a345524e4139a2f6afdd9fa6},
journal = {Advanced Materials Technologies},
keywords = {bioprinting, fabrication, hydrogel, in-chip lab-on-a-chip, natural polymerization two-photon},
number = 9,
pages = 2401571,
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Hybrid Microfluidic Chip Design with Two-Photon Polymerized Protein-Based Hydrogel Microstructures for Single Cell Experiments},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/admt.202401571},
volume = 10,
year = 2025
}

C. Sebastián-Vicente, R. Zamboni, A. García-Cabañes, and M. Carrascosa, “Photovoltaic charge lithography on passive dielectric substrates using fe:linbo3 stamps,” Advanced electronic materials, vol. 11, iss. 2, p. 2400327, 2025.
[Bibtex]

@article{https://doi.org/10.1002/aelm.202400327,
abstract = {Abstract Photovoltaic Fe:LiNbO3 is an outstanding material platform able to photo-generate versatile charge patterns, useful for a broad variety of applications. However, in some cases, its photorefractive effect, light absorption, and active ferroelectric properties may interfere with the optimum operation of certain devices based on Fe:LiNbO3. Here, a novel optoelectronic method is proposed and demonstrated to transfer photovoltaic charge patterns from Fe:LiNbO3 to non-photovoltaic passive substrates, thus removing these possible limitations. The method, denominated as photovoltaic charge lithography (PVCL), resembles the operation of a stamp and does not require external high-voltage supplies or electron/ion beams. Upon contact between the active Fe:LiNbO3 stamp and a passive dielectric substrate, the light-induced charge pattern can be faithfully mirrored on the passive substrate. The imprinted pattern is probed and characterized by dielectrophoretic and electrophoretic particle trapping. The results reveal that the charge builds up on the passive substrate during contact, allowing charge tunability. Moreover, arbitrary charge distributions can be flexibly tailored, using scanning laser beams or spatially structured light. Overall, PVCL opens the possibility of printing complex 1D/2D charge patterns of controlled polarity on different passive dielectric materials, enhancing the technological potential of Fe:LiNbO3 photovoltaic platforms.},
added-at = {2025-09-08T09:15:43.000+0200},
author = {Sebastián-Vicente, Carlos and Zamboni, Riccardo and García-Cabañes, Angel and Carrascosa, Mercedes},
biburl = {https://www.bibsonomy.org/bibtex/22b59e6a31d02d9f1ae8148a4898f6460/ric_zamboni},
doi = {https://doi.org/10.1002/aelm.202400327},
eprint = {https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/aelm.202400327},
interhash = {c6a35fd7c856a558fb7b4bc918c9825a},
intrahash = {2b59e6a31d02d9f1ae8148a4898f6460},
journal = {Advanced Electronic Materials},
keywords = {bulk charge contact effect, electrification, lithium niobate, optoelectronic patterning, photovoltaic tweezers},
number = 2,
pages = 2400327,
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Photovoltaic Charge Lithography on Passive Dielectric Substrates Using Fe:LiNbO3 Stamps},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/aelm.202400327},
volume = 11,
year = 2025
}

R. Zamboni, D. Ray, C. Denz, and J. Imbrock, “Optoelectric-driven wetting transition on artificially micropatterned surfaces with long-range virtual electrodes (adv. mater. interfaces 1/2025).,” Advanced materials interfaces, vol. 12, iss. 1, p. 2400459, 2025.
[Bibtex]

@article{https://doi.org/10.1002/admi.202400459,
abstract = {Abstract The manipulation of droplets and wetting properties is crucial in many applications that involve surface-liquid interactions, especially on artificial superhydrophobic substrates. This study presents an active optoelectronic method to achieve transport and transition between two wetting states on patterned surfaces, namely Cassie–Baxter (CB) and Wenzel (W). The approach employs a photovoltaic iron-doped lithium niobate crystal placed on the bottom of a micropatterned substrate without any adhesive or sticky bonding. Taking advantage of the bulk photovoltaic effect, charge separation can be induced by light inside the crystal, thus leading to virtual electrodes. The long-range interaction between these virtual electrodes and the droplets on the top of the substrate allows for transitions between wetting states and droplet transport. Superhydrophobic wetting transitions between Cassie–Baxter and Wenzel are observed on different substrates using this technique. The forces acting on the droplet that cause the transition are determined numerically. The evolution of droplet deformation and contact angle during the generation of the virtual electrode depends on the shape and intensity of the light beam used for photoinduction, as well as on the compositional properties of the crystal.},
added-at = {2025-09-08T09:15:43.000+0200},
author = {Zamboni, Riccardo and Ray, Debdatta and Denz, Cornelia and Imbrock, Jörg},
biburl = {https://www.bibsonomy.org/bibtex/2f8f0c3aeda36579a52713a427905def6/ric_zamboni},
doi = {https://doi.org/10.1002/admi.202400459},
eprint = {https://advanced.onlinelibrary.wiley.com/doi/pdf/10.1002/admi.202400459},
interhash = {b25229b40cf5d300a531e7a4bf27e064},
intrahash = {f8f0c3aeda36579a52713a427905def6},
journal = {Advanced Materials Interfaces},
keywords = {crystal, electrodes ferroelectric opto-electroweeting, state, superhydrophobic virtual wetting},
number = 1,
pages = 2400459,
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Optoelectric-Driven Wetting Transition on Artificially Micropatterned Surfaces With Long-Range Virtual Electrodes (Adv. Mater. Interfaces 1/2025).},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/admi.202570002},
volume = 12,
year = 2025
}

E. Asché, R. Zamboni, C. Denz, and J. Imbrock, “Transition between light-induced attraction and repulsion of nanoparticles on a lithium niobate surface,” Phys. rev. b, vol. 111, iss. 5, p. 54305, 2025.
[Bibtex]

@article{PhysRevB.111.054305,
added-at = {2025-09-08T09:15:43.000+0200},
author = {Asch\'e, E. and Zamboni, R. and Denz, C. and Imbrock, J.},
biburl = {https://www.bibsonomy.org/bibtex/24b88a99020d094d882492549e2cc24a4/ric_zamboni},
doi = {10.1103/PhysRevB.111.054305},
interhash = {1dea1e809bb110021a04fc2525709dcb},
intrahash = {4b88a99020d094d882492549e2cc24a4},
journal = {Phys. Rev. B},
keywords = {& Carrier Charge Charge, Dielectric Electric Electrophoresis, Ferroelectricity, Particle Photoconductivity, Photocurrent dynamics, generation interactions, polarization, properties, recombination,},
month = Feb,
number = 5,
numpages = {9},
pages = 054305,
publisher = {American Physical Society},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Transition between light-induced attraction and repulsion of nanoparticles on a lithium niobate surface},
url = {https://link.aps.org/doi/10.1103/PhysRevB.111.054305},
volume = 111,
year = 2025
}

R. Zamboni, M. Altin, G. Bragato, L. Lucchetti, C. Sada, and A. Zaltron, “All-optically driven optofluidic light modulator,” Advanced optical materials, vol. 13, iss. 14, p. 2403457, 2025.
[Bibtex]

@article{zamboni2025all,
added-at = {2025-09-04T16:38:43.000+0200},
author = {Zamboni, Riccardo and Altin, Margherita and Bragato, Giovanni and Lucchetti, Liana and Sada, Cinzia and Zaltron, Annamaria},
biburl = {https://www.bibsonomy.org/bibtex/2616b7f16d30d7cec41090d38a15b1518/ric_zamboni},
doi = {https://doi.org/10.1002/adom.202403457},
interhash = {25deb7e47ef845325693e26f410e98dc},
intrahash = {616b7f16d30d7cec41090d38a15b1518},
journal = {Advanced Optical Materials},
keywords = {crystals, effect light liquid lithium modulation, myown niobate, optofluidics, photovoltaic},
number = 14,
pages = 2403457,
publisher = {Wiley Online Library},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {All-Optically Driven Optofluidic Light Modulator},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/adom.202403457},
volume = 13,
year = 2025
}

R. Zamboni, C. Sebastián-Vicente, A. Sadasivan, A. García-Cabañes, M. Carrascosa, and J. Imbrock, “Photovoltaic charge lithography for droplet transport and electrowetting on passive dielectric substrates,” Journal of colloid and interface science, vol. 698, p. 137976, 2025.
[Bibtex]

@article{ZAMBONI2025137976,
abstract = {Hypothesis
Photovoltaic charge lithography is an innovative method for printing surface charges from an illuminated iron-doped lithium niobate crystal stamp onto passive dielectric substrates. We hypothesize that this approach can be effectively utilized for droplet manipulation, including electrowetting and droplet transport, offering high reconfigurability similar to optical techniques and avoiding the need for the presence of photosensitive materials in the main platform, simplifying the design of the system and expanding its practical applicability.
Experiments
We tested photovoltaic charge lithography on a variety of dielectric substrates with different wetting properties. Using incoherent illumination in an air atmosphere, we examined the method's versatility by exploring the effects of varying light exposure on electrowetting and dielectrophoretic droplet attraction. Numerical simulations were also conducted to investigate the interactions between the printed surface charges and the droplets, providing a deeper understanding of the underlying mechanisms.
Findings
Our results confirmed the effectiveness of photovoltaic charge lithography for manipulating droplets on diverse dielectric substrates. The method enabled complex functionalities, including light-exposure-tailored electrowetting, droplet transport of single and multiple consecutive droplets (even uphill), and controlled coalescence. Furthermore, the technique proved to be capable of printing surface charges on flexible polymeric substrates, demonstrating its broad applicability. Numerical simulations supported the experimental observations by offering valuable insights into the interactions between the printed charges and the droplets.},
added-at = {2025-09-04T16:37:43.000+0200},
author = {Zamboni, Riccardo and Sebastián-Vicente, Carlos and Sadasivan, Athira and García-Cabañes, Angel and Carrascosa, Mercedes and Imbrock, Jörg},
biburl = {https://www.bibsonomy.org/bibtex/27969128a9f33b443219502852bc1625d/ric_zamboni},
doi = {https://doi.org/10.1016/j.jcis.2025.137976},
interhash = {caef8b65d2a78a46c54b122bfc88a7a4},
intrahash = {7969128a9f33b443219502852bc1625d},
issn = {0021-9797},
journal = {Journal of Colloid and Interface Science},
keywords = {Droplet Electrowetting, Iron-doped Photovoltaic lithium manipulation, niobate tweezers,},
pages = 137976,
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Photovoltaic charge lithography for droplet transport and electrowetting on passive dielectric substrates},
url = {https://www.sciencedirect.com/science/article/pii/S0021979725013670},
volume = 698,
year = 2025
}

@article{dzikonski2025hybrid,
abstract = {Although hydrogels are among the most promising materials for a huge variety of biomimicking and tissue engineering applications, conventional materials such as polydimethylsiloxane (PDMS) still outweigh hydrogels in terms of processability for the production of microfluidic devices. Hence, incorporating hydrogel components inside conventional PDMS-based microfluidic chips is a promising approach to take advantage of the many possibilities to utilize hydrogels, while maintaining standard properties of microfluidic devices in terms of mechanical stability. Microfluidic chips produced by standard soft lithography are combined with high-resolution protein-based hydrogel elements fabricated by two-photon polymerization (2PP). Those hybrid chips are used to distinguish mechanical properties of different cell phenotypes by injecting pancreatic cancer cells inside the device and investigate mechanical interactions with the hydrogel microstructures. The Young's modulus of blocks printed at different experimental conditions is determined by atomic force microscopy measurements. To showcase the high 3D resolution of the presented fabrication method, fully 3D fibrous meshes are printed with different configurations inside microchannels. By measuring the velocity and circularity of pancreatic cancer cells that pass through meshes of varying densities, the impact on the cell flow is determined. Furthermore, the hydrogel precursor solution is successfully removed and the meshes are immersed in phosphate buffered saline.},
added-at = {2025-03-05T12:08:52.000+0100},
author = {Dzikonski, Dustin and Bekker, Elena and Zamboni, Riccardo and Ciechanska, Dominika and Schwab, Albrecht and Denz, Cornelia and Imbrock, J{\"o}rg},
biburl = {https://www.bibsonomy.org/bibtex/2de6515ed926c8a6ad7d3a81470c7270b/ric_zamboni},
doi = {https://doi.org/10.1002/admt.202401571},
interhash = {54e0e9b863fad4feb2cb81d1a05baa3d},
intrahash = {de6515ed926c8a6ad7d3a81470c7270b},
journal = {Advanced Materials Technologies},
keywords = {bioprinting, fabrication, hydrogel, in-chip lab-on-a-chip, myown, natural polymerization two-photon},
number = 9,
pages = 2401571,
timestamp = {2025-09-08T10:22:54.000+0200},
title = {Hybrid Microfluidic Chip Design with Two-Photon Polymerized Protein-Based Hydrogel Microstructures for Single Cell Experiments},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/admt.202401571},
volume = 10,
year = 2025
}

2024

R. Zamboni, C. Sebastián-Vicente, C. Denz, and J. Imbrock, “Light-induced virtual electrodes for microfluidic droplet electro-coalescence,” Advanced functional materials, vol. 34, iss. 13, p. 2305286, 2024.
[Bibtex]

@article{zamboni2024light,
abstract = {Electro-coalescence is the fusion phenomenon between a pair or more microfluidic droplets that are immersed in an immiscible medium under an electric field. This technique is frequently used to merge confined droplets in surfactant-stabilized microfluidic emulsions using local electric fields. Despite the necessity of miniaturized electrodes, this method has proven highly successful in microfluidics and lab-on-a-chip applications. Miniaturized electrodes severely curtail the spatial and temporal flexibility of the electric potential, thus hindering real-time and flexible operation and leading to high production costs. The current study addresses this problem with reconfigurable electric field potential by light-driven functional virtual electrodes. These electrodes are light-induced on a non-centrosymmetric ferroelectric photovoltaic crystal placed below a microfluidic droplet channel. The photovoltaic effect in the crystal is responsible for the space charge distributions that act as virtual electrodes, whose evanescent field is screened by free charges into the two liquids inside the channel. A numerical model is developed to describe the evolution of the evanescent electric field causing electro-coalescence. Based on this prediction, two coalescence processes occur at two different timescales and with different numbers of droplets involved. Controlled exposure time modulation allows either rapid on-demand coalescence of droplet pairs or breakup of the entire emulsion.},
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, Riccardo and Sebasti{\'a}n-Vicente, Carlos and Denz, Cornelia and Imbrock, J{\"o}rg},
biburl = {https://www.bibsonomy.org/bibtex/26f47ccad2741dde9aaa83317643aac5d/ric_zamboni},
doi = {https://doi.org/10.1002/adfm.202305286},
interhash = {283f3c1e80416b20c85684df02068410},
intrahash = {6f47ccad2741dde9aaa83317643aac5d},
journal = {Advanced Functional Materials},
keywords = {crystal, droplet electro-coalescence, ferroelectric lab-on-a-chip, microfluidics, myown, optoelectronic tweezers},
number = 13,
pages = 2305286,
timestamp = {2025-09-08T09:57:01.000+0200},
title = {Light-Induced Virtual Electrodes for Microfluidic Droplet Electro-Coalescence},
url = {https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202305286},
volume = 34,
year = 2024
}

S. Marni, R. Barboza, A. S. Oluwajoba, R. Zamboni, and L. Lucchetti, “Polarization coupling between ferroelectric liquids and ferroelectric solids: effects of the fringing field profile,” Crystals, vol. 14, iss. 5, p. 425, 2024.
[Bibtex]

@article{marni2024polarization,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Marni, Stefano and Barboza, Raouf and Oluwajoba, Ayomide S and Zamboni, Riccardo and Lucchetti, Liana},
biburl = {https://www.bibsonomy.org/bibtex/23931839056bac6274ab4b11a0cf0652c/ric_zamboni},
doi = {10.3390/cryst14050425},
interhash = {d8c746e0057bc8e0c7f4f09c50cb8d6a},
intrahash = {3931839056bac6274ab4b11a0cf0652c},
issn = {2073-4352},
journal = {Crystals},
keywords = {myown},
number = 5,
pages = 425,
publisher = {MDPI},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Polarization coupling between ferroelectric liquids and ferroelectric solids: effects of the fringing field profile},
url = {https://www.mdpi.com/2073-4352/14/5/425},
volume = 14,
year = 2024
}

G. Bragato, A. Zaltron, M. Zanardi, R. Zamboni, M. De Ros, and C. Sada, “Photo-induced electric field effects on water droplets generated in a linbo3 opto-microfluidic platform,” Advanced materials interfaces, vol. 11, iss. 12, p. 2301008, 2024.
[Bibtex]

@article{bragato2024photo,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Bragato, Giovanni and Zaltron, Annamaria and Zanardi, Michele and Zamboni, Riccardo and De Ros, Maddalena and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/25376d74e1ebce166fa83a693562c2de2/ric_zamboni},
interhash = {4ef209b9479044e14dc51598ef50e952},
intrahash = {5376d74e1ebce166fa83a693562c2de2},
journal = {Advanced Materials Interfaces},
keywords = {imported},
number = 12,
pages = 2301008,
timestamp = {2025-09-04T16:32:12.000+0200},
title = {Photo-Induced Electric Field Effects on Water Droplets Generated in a LiNbO3 Opto-Microfluidic Platform},
volume = 11,
year = 2024
}

2023

R. Zamboni, L. Gauthier-Manuel, A. Zaltron, L. Lucchetti, M. Chauvet, and C. Sada, “Opto-microfluidic coupling between optical waveguides and tilted microchannels in lithium niobate,” Optics express, vol. 31, iss. 17, p. 28423–28436, 2023.
[Bibtex]

@article{zamboni2023opto,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, Riccardo and Gauthier-Manuel, Ludovic and Zaltron, Annamaria and Lucchetti, Liana and Chauvet, Mathieu and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/22da66b669f2bbc597d01c8fc48333509/ric_zamboni},
doi = {10.1364/OE.495406},
interhash = {a2aaf619b713b2c25008422c096fdf85},
intrahash = {2da66b669f2bbc597d01c8fc48333509},
journal = {Optics Express},
keywords = {Lithium Optical Refractive components, elements, index myown myown, niobate niobate, properties, waveguides,},
month = aug,
number = 17,
pages = {28423--28436},
publisher = {Optica Publishing Group},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Opto-microfluidic coupling between optical waveguides and tilted microchannels in lithium niobate},
url = {https://opg.optica.org/oe/abstract.cfm?URI=oe-31-17-28423},
volume = 31,
year = 2023
}

2022

R. Zamboni, A. Zaltron, D. Ferraro, and C. Sada, “Droplet transition from non-axisymmetric to axisymmetric shape: dynamic role of lubrication film in a rectangular microfluidic channel,” Physics of fluids, vol. 34, iss. 12, p. 122014, 2022.
[Bibtex]

@article{zamboni2022droplet,
abstract = {In the past 20 years, droplet microfluidics is burgeoning in many chemical and biological applications due to the unique capability of droplets to act as confined containers. Confinement is ensured even in the case of squeezed droplets within microchannels much smaller than droplet volumes due to the presence of a lubrication thin film that prevents contact between droplets and the channel walls. The thickness of the lubrication film depends on the dynamics of the entire microfluidic system, affecting the actual droplet's shape and velocity. Therefore, this film is extensively studied to obtain insight into the dynamics of flowing droplets, especially when confined in small channels. Circular cross section channels are the most studied for their axial symmetry, but practical applications present most likely non-axisymmetric channels, as a result of fabrication processes, such as soft lithographic rectangular channels. The latter showed unique transitional morphological behavior of droplets, which assumes an axisymmetric or non-axisymmetric shape during their flow inside a non-axisymmetric channel, depending on the lubrication film. This work gives a comprehensive experimental characterization of the dynamics of the lubrication film during the droplet shape transition. We settled on a novel approach based on the optical diffraction of a localized light beam provided by two-facing optical waveguides integrated with the microfluidics circuit. The technique allows for studying the dynamics of flowing droplets and their relationship with the lubrication film thickness. Additionally, this experimental system enables a precise definition of two regimes of lubrication film, and the critical capillary number at which the transition occurs.},
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, R and Zaltron, A and Ferraro, D and Sada, C},
biburl = {https://www.bibsonomy.org/bibtex/2f7f8046bd1dfd6f7b24156451d094a42/ric_zamboni},
doi = {10.1063/5.0123900},
interhash = {12975b15d93d6cd454d9f5eda999450a},
intrahash = {f7f8046bd1dfd6f7b24156451d094a42},
issn = {1070-6631},
journal = {Physics of Fluids},
keywords = {myown},
month = {12},
number = 12,
pages = 122014,
publisher = {AIP Publishing},
timestamp = {2025-09-08T10:20:38.000+0200},
title = {Droplet transition from non-axisymmetric to axisymmetric shape: Dynamic role of lubrication film in a rectangular microfluidic channel},
url = {https://doi.org/10.1063/5.0123900},
volume = 34,
year = 2022
}

R. Zamboni, J. Imbrock, and C. Denz, “Light actuated merging of confined microfluidic droplets by virtual photovoltaic electrodes,” in Photosensitive materials and their applications ii, 2022, p. 98–106.
[Bibtex]

@inproceedings{zamboni2022light,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, R and Imbrock, J and Denz, C},
biburl = {https://www.bibsonomy.org/bibtex/240bc7c29754dcb474f1db7f92df28b74/ric_zamboni},
booktitle = {Photosensitive Materials and their Applications II},
doi = {10.1117/12.2624579},
interhash = {1c4d2b96206dc03decede432e24f6bfe},
intrahash = {40bc7c29754dcb474f1db7f92df28b74},
keywords = {droplet electro-coalescence, electrodes, lab-on-a-chip lithium microfluidic, myown, niobate, photovoltaic tweezers, virtual},
organization = {International Society for Optics and Photonics},
pages = {98--106},
publisher = {SPIE},
timestamp = {2025-09-08T09:54:44.000+0200},
title = {Light actuated merging of confined microfluidic droplets by virtual photovoltaic electrodes},
url = {https://doi.org/10.1117/12.2624579},
volume = 12151,
year = 2022
}

L. Zanini, A. Zaltron, R. Zamboni, E. Turato, and C. Sada, “Enhanced sensing to characterize microdroplets through induced optical phenomena in integrated optomicrofluidic lab-on-a-chip,” in Optical sensing and detection vii, 2022, p. 106–114.
[Bibtex]

@inproceedings{zanini2022enhanced,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zanini, Leonardo and Zaltron, Annamaria and Zamboni, Riccardo and Turato, Enrico and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/2806d2cf546ac2da6773a228eb4f2209a/ric_zamboni},
booktitle = {Optical Sensing and Detection VII},
doi = {https://doi.org/10.1117/12.2623802},
interhash = {2fbd2f13dbf4924c8e6b6af25ab5aa5a},
intrahash = {806d2cf546ac2da6773a228eb4f2209a},
keywords = {droplets, enhancement, lab-on-a-chip, lithium myown niobate opto-microfluidics, sensing, sensitivity waveguides,},
organization = {SPIE},
pages = {106--114},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Enhanced sensing to characterize microdroplets through induced optical phenomena in integrated optomicrofluidic lab-on-a-chip},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12139/2623802/Enhanced-sensing-to-characterize-microdroplets-through-induced-optical-phenomena-in/10.1117/12.2623802.short},
volume = 12139,
year = 2022
}

L. Zanini, A. Zaltron, E. Turato, R. Zamboni, and C. Sada, “Opto-microfluidic integration of the bradford protein assay in lithium niobate lab-on-a-chip,” Sensors, vol. 22, iss. 3, p. 1144, 2022.
[Bibtex]

@article{zanini2022opto,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zanini, Leonardo and Zaltron, Annamaria and Turato, Enrico and Zamboni, Riccardo and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/2b728124a0db2ad9e3b9a12e7cfc6a57b/ric_zamboni},
doi = {10.3390/s22031144},
interhash = {8820949b46f0667f1fd7b7805708686f},
intrahash = {b728124a0db2ad9e3b9a12e7cfc6a57b},
journal = {Sensors},
keywords = {myown},
number = 3,
pages = 1144,
publisher = {MDPI},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {Opto-microfluidic integration of the bradford protein assay in lithium niobate lab-on-a-chip},
url = {https://www.mdpi.com/1424-8220/22/3/1144},
volume = 22,
year = 2022
}

2021

R. Zamboni, A. Zaltron, M. Chauvet, and C. Sada, “Real-time precise microfluidic droplets label-sequencing combined in a velocity detection sensor,” Scientific reports, vol. 11, iss. 1, p. 17987, 2021.
[Bibtex]

@article{zamboni2021real,
abstract = {Droplets microfluidics is broadening the range of Lab on a Chip solutions that, however, still suffer from the lack of an adequate level of integration of optical detection and sensors. In fact, droplets are currently monitored by imaging techniques, mostly limited by a time-consuming data post-processing and big data storage. This work aims to overcome this weakness, presenting a fully integrated opto-microfluidic platform able to detect, label and characterize droplets without the need for imaging techniques. It consists of optical waveguides arranged in a Mach Zehnder’s configuration and a microfluidic circuit both coupled in the same substrate. As a proof of concept, the work demonstrates the performances of this opto-microfluidic platform in performing a complete and simultaneous sequence labelling and identification of each single droplet, in terms of its optical properties, as well as velocity and lengths. Since the sensor is realized in lithium niobate crystals, which is also highly resistant to chemical attack and biocompatible, the future addition of multifunctional stages into the same substrate can be easily envisioned, extending the range of applicability of the final device.},
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, Riccardo and Zaltron, Annamaria and Chauvet, Mathieu and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/246ec79de30ed8a3ff3f05a8ff0937d96/ric_zamboni},
doi = {10.1038/s41598-021-97392-3},
interhash = {756404da976e1d68faa87e6ca396eae8},
intrahash = {46ec79de30ed8a3ff3f05a8ff0937d96},
issn = {2045-2322},
journal = {Scientific reports},
keywords = {myown},
number = 1,
pages = 17987,
publisher = {Nature Publishing Group UK London},
timestamp = {2025-09-08T09:50:43.000+0200},
title = {Real-time precise microfluidic droplets label-sequencing combined in a velocity detection sensor},
url = {https://doi.org/10.1038/s41598-021-97392-3},
volume = 11,
year = 2021
}

F. Ciciulla, A. Zaltron, R. Zamboni, C. Sada, F. Simoni, V. Y. Reshetnyak, and L. Lucchetti, “Optofluidic platform based on liquid crystals in x-cut lithium niobate: thresholdless all-optical response,” Crystals, vol. 11, iss. 8, p. 908, 2021.
[Bibtex]

@article{ciciulla2021optofluidic,
abstract = {In this study, we present a new configuration of the recently reported optofluidic platform exploiting liquid crystals reorientation in lithium niobate channels. In order to avoid the threshold behaviour observed in the optical control of the device, we propose microchannels realized in a x-cut crystal closed by a z-cut crystal on the top. In this way, the light-induced photovoltaic field is not uniform inside the liquid crystal layer and therefore the conditions for a thresholdless reorientation are realized. We performed simulations of the photovoltaic effect based on the well assessed model for Lithium Niobate, showing that not uniform orientation and value of the field should be expected inside the microchannel. In agreement with the re-orientational properties of nematic liquid crystals, experimental data confirm the expected thresholdless behaviour. The observed liquid crystal response exhibits two different regimes and the response time shows an unusual dependence on light intensity, both features indicating the presence of additional photo-induced fields appearing above a light intensity of 107 W/m2.},
added-at = {2025-03-05T12:08:52.000+0100},
author = {Ciciulla, Fabrizio and Zaltron, Annamaria and Zamboni, Riccardo and Sada, Cinzia and Simoni, Francesco and Reshetnyak, Victor Yu and Lucchetti, Liana},
biburl = {https://www.bibsonomy.org/bibtex/2dd22786fad1ca9805515379abfd635f6/ric_zamboni},
doi = {10.3390/cryst11080908},
interhash = {afba76daa4a66929753910bcb1c87308},
intrahash = {dd22786fad1ca9805515379abfd635f6},
issn = {2073-4352},
journal = {Crystals},
keywords = {myown},
number = 8,
pages = 908,
publisher = {MDPI},
timestamp = {2025-09-08T09:49:13.000+0200},
title = {Optofluidic platform based on liquid crystals in x-cut lithium niobate: Thresholdless all-optical response},
url = {https://www.mdpi.com/2073-4352/11/8/908},
volume = 11,
year = 2021
}

R. Zamboni, J. Imbrock, and C. Denz, “Manipulating aqueous droplets by light-induced virtual electrodes,” in Optical trapping and optical micromanipulation xviii, 2021, p. 193–200.
[Bibtex]

@inproceedings{zamboni2021manipulating,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, Riccardo and Imbrock, J{\"o}rg and Denz, Cornelia},
biburl = {https://www.bibsonomy.org/bibtex/223064512c0b28e28f548f8fd5eaed629/ric_zamboni},
booktitle = {Optical Trapping and Optical Micromanipulation XVIII},
doi = {10.1117/12.2594165},
interhash = {99f4b6f4c92c876cd996c11ae67989fc},
intrahash = {23064512c0b28e28f548f8fd5eaed629},
keywords = {Dielectrophoresis Photovoltaic droplets electrode, lab-on-a-chip, lithium microfluidics, myown, niobate, tweezers, virtual},
organization = {SPIE},
pages = {193--200},
timestamp = {2025-09-08T09:47:34.000+0200},
title = {Manipulating aqueous droplets by light-induced virtual electrodes},
url = {https://doi.org/10.1117/12.2594165},
volume = 11798,
year = 2021
}

2020

R. Zamboni, A. Zaltron, E. Izzo, G. Bottaro, D. Ferraro, and C. Sada, “Opto-microfluidic system for absorbance measurements in lithium niobate device applied to ph measurements,” Sensors, vol. 20, iss. 18, p. 5366, 2020.
[Bibtex]

@article{zamboni2020opto,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zamboni, Riccardo and Zaltron, Annamaria and Izzo, Elena and Bottaro, Gregorio and Ferraro, Davide and Sada, Cinzia},
biburl = {https://www.bibsonomy.org/bibtex/288c85f00825ba49dc2ef54ca7d2dd5ae/ric_zamboni},
interhash = {c05cbc08788e25a7bc4f50543ceb48e3},
intrahash = {88c85f00825ba49dc2ef54ca7d2dd5ae},
journal = {Sensors},
keywords = {imported},
number = 18,
pages = 5366,
publisher = {MDPI},
timestamp = {2025-09-04T16:32:12.000+0200},
title = {Opto-microfluidic system for absorbance measurements in lithium niobate device applied to ph measurements},
volume = 20,
year = 2020
}

2019

G. Bettella, R. Zamboni, G. Pozza, A. Zaltron, C. Montevecchi, M. Pierno, G. Mistura, C. Sada, L. Gauthier-Manuel, and M. Chauvet, “Linbo3 integrated system for opto-microfluidic sensing,” Sensors and actuators b: chemical, vol. 282, pp. 391-398, 2019.
[Bibtex]

@article{bettella2019linbo3,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Bettella, G and Zamboni, Riccardo and Pozza, G and Zaltron, A and Montevecchi, C and Pierno, M and Mistura, G and Sada, C and Gauthier-Manuel, L and Chauvet, Mathieu},
biburl = {https://www.bibsonomy.org/bibtex/270504916fb77cc55b95cadb4f98a2b98/ric_zamboni},
doi = {https://doi.org/10.1016/j.snb.2018.10.082},
interhash = {e941b825a06569e0f564ee120f817d1d},
intrahash = {70504916fb77cc55b95cadb4f98a2b98},
issn = {0925-4005},
journal = {Sensors and Actuators B: Chemical},
keywords = {Droplet, Lab-on-a-Chip Lithium Microfluidic, Optical Waveguide, myown niobate, trigger,},
pages = {391-398},
publisher = {Elsevier},
timestamp = {2025-09-08T09:37:23.000+0200},
title = {LiNbO3 integrated system for opto-microfluidic sensing},
url = {https://www.sciencedirect.com/science/article/pii/S0925400518318513},
volume = 282,
year = 2019
}

2017

G. Bettella, G. Pozza, S. Kroesen, R. Zamboni, E. Baggio, C. Montevecchi, A. Zaltron, L. Gauthier-Manuel, G. Mistura, C. Furlan, and others, “Lithium niobate micromachining for the fabrication of microfluidic droplet generators,” Micromachines, vol. 8, iss. 6, p. 185, 2017.
[Bibtex]

@article{bettella2017lithium,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Bettella, Giacomo and Pozza, Gianluca and Kroesen, Sebastian and Zamboni, Riccardo and Baggio, Enrico and Montevecchi, Carlo and Zaltron, Annamaria and Gauthier-Manuel, Ludovic and Mistura, Giampaolo and Furlan, Claudio and others},
biburl = {https://www.bibsonomy.org/bibtex/2067a444ce61b2356472aea1c67f46122/ric_zamboni},
interhash = {32fe74a50dabe95054fbee5eda61d2f6},
intrahash = {067a444ce61b2356472aea1c67f46122},
journal = {Micromachines},
keywords = {imported},
number = 6,
pages = 185,
publisher = {MDPI},
timestamp = {2025-09-04T16:32:12.000+0200},
title = {Lithium niobate micromachining for the fabrication of microfluidic droplet generators},
volume = 8,
year = 2017
}

2015

A. Zaltron, G. Bettella, G. Pozza, R. Zamboni, M. Ciampolillo, N. Argiolas, C. Sada, S. Kroesen, M. Esseling, and C. Denz, “Integrated optics on lithium niobate for sensing applications,” in Optical sensors 2015, 2015, p. 50–59.
[Bibtex]

@inproceedings{zaltron2015integrated,
added-at = {2025-03-05T12:08:52.000+0100},
author = {Zaltron, Annamaria and Bettella, Giacomo and Pozza, Gianluca and Zamboni, Riccardo and Ciampolillo, M and Argiolas, Nicola and Sada, Cinzia and Kroesen, Sebastian and Esseling, Michael and Denz, Cornelia},
biburl = {https://www.bibsonomy.org/bibtex/226f8733902db7373c365eec44309cf97/ric_zamboni},
booktitle = {Optical Sensors 2015},
interhash = {c7e45e1ef28afecdbb3a1f87dd35cad0},
intrahash = {26f8733902db7373c365eec44309cf97},
keywords = {imported},
organization = {SPIE},
pages = {50--59},
timestamp = {2025-09-04T16:32:12.000+0200},
title = {Integrated optics on Lithium Niobate for sensing applications},
volume = 9506,
year = 2015
}