- Nanocluster Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Molecular spectroscopy and chirality
- Perovskite Materials and Applications
- 2D Materials and Applications
- MXene and MAX Phase Materials
University of Groningen
2024
Universidad Nacional Autónoma de México
2019-2022
Cysteine-protected metal nanoparticles (NPs) have shown interesting physicochemical properties of potential utility in biomedical applications and the understanding protein folding. Herein, cysteine interaction with gold, silver, copper NPs is characterized by Raman spectroscopy density functional theory calculations to elucidate molecular conformation adsorption sites for each metal. The experimental analysis spectra upon respect free indicates that while C–S bond carboxyl group are...
Abstract Understanding the physical mechanisms of thiolated molecules adsorption on metal surfaces has required copious research, particularly Au–cysteine systems due to affinity sulfur gold surfaces, as well interesting structural modifications that this strong interaction induces and peculiar optical, chiroptical, electronic properties Au(SR) systems. Here, we present vibrational experimental data L ‐ D ‐cysteine small nanoparticles (<2 nm) by means Raman spectroscopy. adopt same...
Abstract Gold, silver, and copper small nanoparticles (NPs), with average size ≈ 2 nm, are synthesized afterward protected l ‐ d ‐cysteine, demonstrating emergence of chiroptical activity in the wavelength range 250–400 nm for all three metals respect to bare ligands alone. Silver‐cysteine (Ag‐Cys) NPs display higher anisotropy factor, whereas gold‐cysteine (Au‐Cys) show optical signatures slightly more displaced visible range. A larger number circular dichroism (CD) bands smaller intensity,...
Transition-metal dichalcogenides (TMDs) are ideal systems for two-dimensional (2D) optoelectronic applications owing to their strong light-matter interaction and various band gap energies. New techniques modify the crystallographic phase of TMDs have recently been discovered, allowing creation lateral heterostructures design all-2D circuitry. Thus, far, potential benefits phase-engineered TMD devices still largely unexplored. The dominant mechanisms involved in photocurrent generation these...