Anti-bacterial activity of gold nanocomposites as a new nanomaterial weapon to combat photogenic agents: recent advances and challenges

Abstract

Gold nanocomposites are being widely used in numerous biomedical applications owing to their excellent stability and miniaturization.

Hybrid Surface-Enhanced Raman Scattering Substrates for the Trace Detection of Ammonium Nitrate, Thiram, and Nile Blue

“…Gold (Au) nanomaterials are the maximum studied nanotechnological tools in diverse fields including surface-enhanced Raman spectroscopy (SERS), catalysis, biosensing, and bioimaging due to easy synthesis methods, chemical stability, biocompatibility, and outstanding optical properties. 1 − 4 Particularly, the localized surface plasmonic resonance (SPR) property of Au nanomaterials can be tuned from the visible to near-infrared region depending on the morphology with respect to the size and shape. 5 − 7 In the recent years, Au nanostars have stimulated enormous attention in the fabrication of SERS substrates because of the induced high electric fields at their sharp tips, unlike their spherical, triangular, and nanorod counterparts.…”

Recent advances in aqueous virus removal technologies

“… Carbon Granular activated carbon (GAC) Adsorption Bacteriophage MS-2 -ACFC adsorbent was more efficient for virus adsorption than GAC; -Due to its shape, GAC was not the best adsorbent for virus besides both surface areas are comparable - Carbon family is a common family for membrane and adsorption process ( Powell et al, 2000 ; Ahmed et al, 2012 ) Activated carbon fiber composite (ACFC) Poly-N-vinyl carbazole- single-walled carbon nanotube (PVK-SWNT) Membrane Bacteria MOF Metal–Organic Frameworks (MOFs) Adsorption/Membrane Zika, Dengue, human immune deficiency virus-1 (HIV-1) and Japanese encephalitis virus and SARS-CoV-2 -It has been shown that the textural properties (pore size and volume), crystal morphology and chemical functionality of MOFs can be modulated to obtain specific performances for virus removal; -MOFs-based materials have also been used to develop sensor for detecting Zika, Dengue, human immune deficiency virus-1 (HIV-1) and Japanese encephalitis virus with promising results -They induce synergistic properties into nanostructured polymeric membranes ( Riccò et al, 2018 ; Gohil and Choudhury, 2019 ; Rabiee et al, 2022 ) Zeolite Zeolite Adsorption/Membrane Coronavirus 229 E -Silver and copper-doped zeolites can induce a significant reduction of the presence of the Coronavirus in water solution after 1 h of treatment; -The functionalization of zeolite via silver and copper, i.e. metals presenting known antibacterial properties, has been shown to be an efficient way to inhibit Coronavirus; -The adsorption mechanism was explained by the surface charge, hydrophobicity and surface properties of pathogens and NPs matrix; -It was shown that the removal efficiency of Fe 3 O 4 –SiO 2 –NH 2 NPs over bacteriophage f2 and Poliovirus-1 are more than 97% - It can offer high thermal stability and chemically robust structure ( Pendergast and Hoek, 2011 ; Mintova et al, 2015 ; Mobed et al, 2021 ) Hybrid nanomaterials - Silica-decorated TiO 2 ...…”

Piezoelectric Polymeric Foams as Flexible Energy Harvesters: A Review

“…body fluids, tissues, and other portable devices which makes them an ideal candidate for such applications. [18,[114][115][116][117][118][119][120][121][122][123][124][125] However, apart from the biomedical sectors, broad applications of polymeric PEH systems are found in the wireless network sensor, [126][127][128][129][130][131][132][133][134] optics, robotics, environmental monitoring, [135] underwater and electroacoustic transducers, [136] ultrasonics acoustic devices, [137] piezoelectric roads, [138] etc.…”