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Listar por palabra clave "Optical tweezers"

Mostrando ítems 1-6 de 6

Diseño y caracterización experimental de sistemas de atrapamiento y manipulación de micro-objetos mediante técnicas ópticas, térmicas y acústicas

Muñoz Pérez, Francisco Misael (Universitat Politècnica de València, 2024-04-11)

[ES] La necesidad de confinar y manipular micro-objetos tiene aplicaciones en múltiples áreas de la ciencia y tecnología. Actualmente, existen diversas técnicas para lograr este objetivo, y una de las más destacadas es el ...
Heat Generation in Single Magnetic Nanoparticles under Near-Infrared Irradiation

Rodríguez-Rodríguez, Héctor; Salas, Gorka; Arias-Gonzalez, J. R. (American Chemical Society, 2020-03-19)

[EN] Heat generation by pointlike structures is an appealing concept for its implications in nanotechnology and biomedicine. The way to pump energy that excites heat locally and the synthesis of nanostructures that absorb ...
Laser Heating Tunability by Off-Resonant Irradiation of Gold Nanoparticles

Hormeño, S.; Gregorio-Godoy, P.; Pérez-Juste, J.; Liz-Marzán, L.M.; Juárez, B.H.; Arias-Gonzalez, J. R. (John Wiley & Sons, 2014-01-29)

[EN] Temperature changes in the vicinity of a single absorptive nanostructure caused by local heating have strong implications in technologies such as integrated electronics or biomedicine. Herein, the temperature changes ...
Mechanical unfolding of long human telomeric RNA (TERRA)

Garavís, M.; Bocanegra, R.; Herrero-Galán, E.; González, C.; Villasante, A.; Arias-Gonzalez, J. R. (The Royal Society of Chemistry, 2013)

[EN] We report the first single molecule investigation of TERRA molecules. By using optical-tweezers and other biophysical techniques, we have found that long RNA constructions of up to 25 GGGUUA repeats form higher order ...
Optical Trapping of Single Nanostructures in a Weakly Focused Beam. Application to Magnetic Nanoparticles

Rodríguez-Rodríguez, H.; de Lorenzo, S.; de la Cueva, L.; Salas, G.; Arias-Gonzalez, J. R. (American Chemical Society, 2018-08-09)

[EN] Optical trapping of individual particles is believed to be only effective under highly focused beams because these conditions strengthen the gradient forces. This is especially critical in the beam propagating direction, ...
Single-Stranded Condensation Stochastically Blocks G-Quadruplex Assembly in Human Telomeric RNA

Gutiérrez, I.; Garavís, M.; de Lorenzo, S.; Villasante, A.; González, C.; Arias-Gonzalez, J. R. (American Chemical Society, 2018-05-17)

[EN] TERRA is an RNA molecule transcribed from human subtelomeric regions toward chromosome ends potentially involved in regulation of heterochromatin stability, semiconservative replication, and telomerase inhibition, ...