Fabrication of Sub-10-nm Plasmonic Gaps for Ultra-Sensitive Raman SpectroscopyThe past two decades have witnessed the explosion of activities in the field of surface enhanced Raman spectroscopy (SERS). SERS platforms employ nano-structures that excite plasmonic modes with large local...
Año de publicación: 2020
Development of a label-free SERS gold nanoaptasensors for the accessible determination of ochratoxin ANanomaterials use in traditional spectroscopic assays has enabled the development of more sensitive and accessible methods with wider-range of applications. Usually, the sensitivity of nanosensors is improved through the incorporation...
Año de publicación: 2020
Desarrollo de un nanosensor aptamérico basado en nanotriángulos de oro para la detección de aflatoxina B1 mediante LSPRLa aflatoxina B1 (AFB1) es una micotoxina producida por la especie de hongos Aspergillus que afecta a una gran variedad de productos agrícolas como la kiwicha. La AFB1 es conocida...
Año de publicación: 2020
Development of an LSPR Nanoaptasensor for AFB1 Screening in Amaranth Extract SolutionsLSPR nanoaptasensor based on gold nanotriangles and aptamers were developed for the determination of AFB1 in the ppbs level. We tested our nanosensor using different solvents systems and in a...
Año de publicación: 2020
Gold nanoparticle coatings as efficient adenovirus carriers to non-infectable stem cellsMesenchymal stem cells (MSCs) are adult pluripotent cells with the plasticity to be converted into different cell types. Their self-renewal capacity, relative ease of isolation, expansion, and inherent migration to...
Año de publicación: 2019
Portable low-cost instrumentation for monitoring Rayleigh scattering from chemical sensors based on metallic nanoparticlesUsing a Hg(II) sensor based on the aggregation of gold nanoparticles as a model system, we evaluated the performance of two portable low-cost devices that monitor the wavelength-ratiometric resonance Rayleigh...
Año de publicación: 2018
Label-free SERS and LSPR gold nanoaptasensors of mycotoxins in solution: solvent assessmentLiquid-phase gold nanoaptasensors were developed for mycotoxin determination down to ppb level. We present selected results of accessible detection of OTA and AFB1 toxins and the solvent effect in the...
Año de publicación: 2018
Estudio de los factores determinantes para el desarrollo de sensores SERS efectivos y económicos
La nanotecnología ha aportado a la ciencia un sinfín de herramientas para la mejora de los sistemas de detección, como es el caso de la espectroscopía Raman amplificada en superficie...
Año de publicación: 2018
La nanotecnología ha aportado a la ciencia un sinfín de herramientas para la mejora de los sistemas de detección, como es el caso de la espectroscopía Raman amplificada en superficie...
Año de publicación: 2018
Highly sensitive ratiometric quantification of cyanide in water with gold nanoparticles via Resonance Rayleigh ScatteringA highly sensitive and selective ratiometric sensor for the quantification of cyanide (CN−) in aqueous samples has been developed using spherical gold nanoparticles (AuNPs) stabilized by polysorbate 40 (PS-40). Three...
Año de publicación: 2017
Plasmonic nanohole arrays on a robust hybrid substrate for highly sensitive label-free biosensing
Plasmonic nanohole arrays have received significant attention, as they have highly advantageous optical properties for ultrasensitive and label-free biosensing applications. Currently, most of these subwavelength periodic apertures are mainly implemented...
Año de publicación: 2015
Plasmonic nanohole arrays have received significant attention, as they have highly advantageous optical properties for ultrasensitive and label-free biosensing applications. Currently, most of these subwavelength periodic apertures are mainly implemented...
Año de publicación: 2015