TY - JOUR AU - Saftics, András AU - Kurunczi, Sándor AU - Péter, Beatrix AU - Székács, Inna AU - Ramsden, Jeremy J. AU - Horváth, Róbert TI - Data evaluation for surface-sensitive label-free methods to obtain real-time kinetic and structural information of thin films: A practical review with related software packages JF - ADVANCES IN COLLOID AND INTERFACE SCIENCE J2 - ADV COLLOID INTERFAC VL - 294 PY - 2021 PG - 33 SN - 0001-8686 DO - 10.1016/j.cis.2021.102431 UR - https://m2.mtmt.hu/api/publication/32006021 ID - 32006021 LA - English DB - MTMT ER - TY - JOUR AU - Sztilkovics, Milán AU - Gerecsei, Tamás AU - Péter, Beatrix AU - Saftics, András AU - Kurunczi, Sándor AU - Székács, Inna AU - Szabó, Bálint AU - Horváth, Róbert TI - Single-cell adhesion force kinetics of cell populations from combined label-free optical biosensor and robotic fluidic force microscopy JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 10 PY - 2020 IS - 1 PG - 13 SN - 2045-2322 DO - 10.1038/s41598-019-56898-7 UR - https://m2.mtmt.hu/api/publication/31154427 ID - 31154427 LA - English DB - MTMT ER - TY - JOUR AU - Agócs, Emil AU - Kozma, Péter AU - Nádor, Judit AU - Hámori, András AU - Janosov, Milán AU - Kalas, Benjamin AU - Kurunczi, Sándor AU - Fodor, Bálint AU - Ehrentreich-Förster, Eva AU - Fried, Miklós AU - Horváth, Róbert AU - Petrik, Péter TI - Grating coupled optical waveguide interferometry combined with in situ spectroscopic ellipsometry to monitor surface processes in aqueous solutions JF - APPLIED SURFACE SCIENCE J2 - APPL SURF SCI VL - 421 PY - 2017 IS - Part B SP - 289 EP - 294 PG - 6 SN - 0169-4332 DO - 10.1016/j.apsusc.2016.07.166 UR - https://m2.mtmt.hu/api/publication/3104095 ID - 3104095 LA - English DB - MTMT ER - TY - JOUR AU - Nazirizadeh, Yousef AU - Behrends, Volker AU - Prósz, Aurél AU - Orgován, Norbert AU - Horváth, Róbert AU - M Ferrie, Ann AU - Fang, Ye AU - Selhuber-Unkel, Christine AU - Gerken, Martina TI - Intensity interrogation near cutoff resonance for label-free cellular profiling JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 6 PY - 2016 PG - 6 SN - 2045-2322 DO - 10.1038/srep24685 UR - https://m2.mtmt.hu/api/publication/3055425 ID - 3055425 LA - English DB - MTMT ER - TY - JOUR AU - Desfours, Caroline AU - Calas-Etienne, Sylvie AU - Horváth, Róbert AU - Martin, Marta AU - Gergely, Csilla AU - Cuisinier, Frédéric AU - Etienne, Pascal TI - Development and characterization of ultra-porous silica films made by the sol–gel method. Application to biosensing JF - APPLIED PHYSICS A - MATERIALS SCIENCE AND PROCESSING J2 - APPL PHYS A-MATER VL - 114 PY - 2014 IS - 2 SP - 435 EP - 443 PG - 9 SN - 0947-8396 DO - 10.1007/s00339-013-7662-y UR - https://m2.mtmt.hu/api/publication/2285984 ID - 2285984 LA - English DB - MTMT ER - TY - JOUR AU - Orgován, Norbert AU - Kovács, Boglárka AU - Farkas, Enikő AU - Szabó, Bálint AU - Zaytseva, Natalya AU - Fang, Ye AU - Horváth, Róbert TI - Bulk and surface sensitivity of a resonant waveguide grating imager JF - APPLIED PHYSICS LETTERS J2 - APPL PHYS LETT VL - 104 PY - 2014 IS - 8 PG - 4 SN - 0003-6951 DO - 10.1063/1.4866460 UR - https://m2.mtmt.hu/api/publication/2533648 ID - 2533648 LA - English DB - MTMT ER - TY - JOUR AU - Patkó, Dániel AU - György, Bence AU - Németh, Andrea AU - Szabó-Taylor, Katalin AU - Kittel, Ágnes AU - Buzás, Edit Irén AU - Horváth, Róbert TI - Label-free optical monitoring of surface adhesion of extracellular vesicles by grating coupled interferometry JF - SENSORS AND ACTUATORS B-CHEMICAL J2 - SENSOR ACTUAT B CHEM VL - 188 PY - 2013 SP - 697 EP - 701 PG - 5 SN - 0925-4005 DO - 10.1016/j.snb.2013.07.035 UR - https://m2.mtmt.hu/api/publication/2428381 ID - 2428381 LA - English DB - MTMT ER - TY - JOUR AU - Horváth, Róbert AU - Wilcox, LC AU - Pedersen, HC AU - Skivesen, N AU - Hesthaven, JS AU - Johansen, PM TI - Analytical and numerical study on grating depth effects in grating coupled waveguide sensors JF - APPLIED PHYSICS B - LASERS AND OPTICS J2 - APPL PHYS B-LASERS O VL - 81 PY - 2005 IS - 1 SP - 65 EP - 73 PG - 9 SN - 0946-2171 DO - 10.1007/s00340-005-1841-2 UR - https://m2.mtmt.hu/api/publication/1412959 ID - 1412959 AB - The in-coupling process for grating-coupled planar optical waveguide sensors is investigated in the case of TE waves. A simple analytical model based on the Rayleigh-Fourier-Kiselev method is applied to take into account the depth of the grating coupler, which is usually neglected in the modeling. Analytical expressions are derived both for the position and width of the in-coupling peaks to illustrate the effects of grating depth on the guided mode resonances in grating coupled waveguide sensors. Numerical computations verify the model for shallow gratings both in terms of peak shape and position and provide the limitations for the analytical formulas. LA - English DB - MTMT ER - TY - JOUR AU - Horváth, Róbert AU - Pedersen, HC AU - Skivesen, N AU - Selmeczi, D AU - Larsen, NB TI - Monitoring of living cell attachment and spreading using reverse symmetry waveguide sensing JF - APPLIED PHYSICS LETTERS J2 - APPL PHYS LETT VL - 86 PY - 2005 IS - 7 PG - 3 SN - 0003-6951 DO - 10.1063/1.1862756 UR - https://m2.mtmt.hu/api/publication/1412961 ID - 1412961 AB - The effect of the attachment and spreading of living cells on the modes of a grating coupled reverse symmetry waveguide sensor is investigated in real time. The reverse symmetry design has an increased probing depth into the sample making it well suited for the monitoring of cell morphology. As a result, significant changes in the incoupling peak height and peak shape were observed during cell attachment and spreading. It is suggested that the area under the incoupling peaks reflects the initial cell attachment process, while the mean peak position is mostly governed by the spreading of the cells. (C) 2005 American Institute of Physics. LA - English DB - MTMT ER - TY - JOUR AU - Horváth, Róbert AU - Skivesen, N AU - Pedersen, HC TI - Measurement of guided light-mode intensity: An alternative waveguide sensing principle JF - APPLIED PHYSICS LETTERS J2 - APPL PHYS LETT VL - 84 PY - 2004 IS - 20 SP - 4044 EP - 4046 PG - 3 SN - 0003-6951 DO - 10.1063/1.1751610 UR - https://m2.mtmt.hu/api/publication/1412962 ID - 1412962 AB - An alternative transduction mechanism for planar optical waveguide sensors is reported. Based on a simple measurement of the mode intensity, the presented transduction is an interesting alternative to the conventional mode-angle transduction, because the expensive, high-precision angular rotation usually employed may be avoided. (C) 2004 American Institute of Physics. LA - English DB - MTMT ER - TY - JOUR AU - Horváth, Róbert AU - Lindvold, LR AU - Larsen, NB TI - Reverse-symmetry waveguides: theory and fabrication JF - APPLIED PHYSICS B - LASERS AND OPTICS J2 - APPL PHYS B-LASERS O VL - 74 PY - 2002 IS - 4-5 SP - 383 EP - 393 PG - 11 SN - 0946-2171 DO - 10.1007/s003400200823 UR - https://m2.mtmt.hu/api/publication/1412968 ID - 1412968 AB - We present an extensive theoretical analysis of reverse-symmetry waveguides with special focus on their potential application as sensor components in aqueous media and demonstrate a novel method for fabrication of such waveguides. The principle of reverse symmetry is based on making the refractive index of the waveguide substrate less than the refractive index of the medium covering the waveguiding film (n(water) = 1.33). This is opposed to the conventional waveguide geometry, where the substrate is usually glass or polymers with refractive indices of approximate to1.5. The reverse configuration has the advantage of deeper penetration of the evanescent electromagnetic field into the cover medium, theoretically permitting higher sensitivity to analytes compared to traditional waveguide designs. We present calculated sensitivities and probing depths of conventional and reverse-symmetry waveguides and describe schemes for easy implementation of reverse symmetry. Polymer waveguides are demonstrated to be candidates for cheap, mass-producible reverse-symmetry sensor modules. The grating-coupled waveguiding films of controlled thickness are produced by soft lithography. The resulting films are combined with air-grooved polymer supports to form freestanding single-material polymer waveguides of reverse symmetry capable of guiding light. LA - English DB - MTMT ER -