We used SERS with silver nanoparticles (AgNPs) as the active substrate to develop a, simple, quick, and accurate method for detection characterization SARS-CoV-2 without need RNA isolation purification. Inactivated was used. The signals were more than 105 times enhanced normal Raman (NR) spectra. spectra of fingerprint revealed pronounced intensity nucleic acids; aromatic amino acid side chains...

Cr(VI) is one of the most toxic heavy metals, posing multiple threats to humans and ecosystems. Photoreduction para-toxic Cr(III) effective ways remove metal chromium but still challenging. Herein, Ti3C2/UiO-66-NH2 composites with different ratio Ti3C2 were synthesized via an in situ solvothermal process used for enhanced photocatalytic removal first time. The UiO-66-NH2 nanoparticles dispersed...

The current study focuses on the photocatalytic oxidation of benzyl alcohol in acetonitrile under air bubbling conditions comparing titania-based materials, Cu–MOF, and Cu–MOF–NH2 as semiconductor photocatalysts. catalysts were characterized by XRD, N2 adsorption–desorption isotherm, FTIR, Raman spectroscopy, TEM. conversion reached ~100% after exposing four prepared to a 125 W mercury lamp for...

The multimetallic sulfur-framework catalytic site of biological nitrogenases allows the efficient conversion dinitrogen (N2) to ammonia (NH3) under ambient conditions. Inspired by nitrogenases, a bimetallic sulfide material (FeWSx@FeWO4) was synthesized as highly N2 reduction (NRR) catalyst sulfur substitution surface FeWO4 nanoparticles. Thus prepared FeWSx@FeWO4 catalysts exhibit relatively h...

A novel magnetic solid phase extraction based on mercaptophenylboronic acid (MPBA)-functionalized Fe3O4-NH2@Au nanomaterial (Fe3O4-NH2@Au-MPBA) was developed for selective separation and enrichment of catecholamines (including dopamine, norepinephrine adrenaline). Fe3O4-NH2@Au-MPBA nanoparticles were achieved by self-assembly-anchoring MPBA molecules the surface nanocomposites, which synthesize...

In a previous work, we studied the interaction of beta-amyloid fibrils (Abeta) with gold nanoparticles (AuNP) conjugated with the peptide CLPFFD-NH2. Here, we studied the effect of changing the residue sequence of the peptide CLPFFD-NH2 on the efficiency of conjugation to AuNP, the stability of the conjugates, and the affinity of the conjugates to the Abeta fibrils. We conjugated the AuNP with ...

In this work we synthesized Nano hydroxyapatite (HAp)  by Sol-gel method, Then we functionalized hydroxyapatite nanoparticle by use of  3-Aminopropyl trimethoxysilane (APTMS) , to improve the loading and control release of sulfasalazine drug bonded to APTMS. The drug release patterns from Sulfasalazine loaded HAp nanoparticles at pH value 8 For 6h, Sulfasalazine loaded functionalized HAp nanopa...

Dendrimer-encapsulated Pt nanoparticles can be synthesized by Pt2þ coordination with dendrimers followed by reduction. In the present study, we have systematically investigated the coordination kinetics of PtCl4 2 with fourth-generation hydroxyl-terminated poly(amidoamine) (PAMAM G4-OH) dendrimers using UV vis spectroscopy measurements. Our experimental investigation clarifies that Pt2þ coordin...