Publications by authors named "Ana Isabel Perez-Jimenez"
Graphene is a 2D material with promising commercial applications due to its physicochemical properties. Producing high-quality graphene economically and at large scales is currently of great interest and demand. Here, the potential of producing high-quality graphene at a large scale via water-phase exfoliation methods is investigated.
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- Piezoelectric nanomaterials like SnSe enhance green catalysis, particularly in generating hydrogen from water using mechanical energy.
- SnSe demonstrates outstanding piezoelectric properties, achieving a remarkable piezoelectric potential of 44.1 V and a record piezocurrent density of 0.3 mA cm under ultrasonic excitation.
- The study reports an impressive hydrogen production rate of 948.4 µmol g h from SnSe nanosheets, surpassing many existing piezocatalysts and competing well with current photocatalysis technologies.
Surface-enhanced Raman spectroscopy (SERS) is a vibrational spectroscopy technique with sensitivity down to the single molecule level that provides fine molecular fingerprints, allowing for direct identification of target analytes. Extensive theoretical and experimental research, together with continuous development of nanotechnology, has significantly broadened the scope of SERS and made it a hot research field in chemistry, physics, materials, biomedicine, and so on. However, SERS has not been developed into a routine analytical technique, and continuous efforts have been made to address the problems preventing its real-world application.
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- Electrochemistry and confocal fluorescence microscopy were combined to study NBD-labeled phospholipids in giant liposomes, allowing selective bleaching and monitoring of fluorescence.
- Three types of giant unilamellar vesicles were analyzed, revealing that only the fluorescent lipids in the outer leaflet experienced bleaching upon reduction.
- The study developed a new assay (FLIE) to quantify fluorescence decay during electrochemical bleaching, confirming diffusion-driven dynamics similar to results from conventional techniques like FLIP.