Green Route Synthesis and Characterization Techniques of Silver Nanoparticles and Their Biological Adeptness

Abstract

The development of the most reliable and green techniques for nanoparticle synthesis is an emerging step in the area of green nanotechnology. Many conventional approaches used for nanoparticle (NP) synthesis are expensive, deadly, and nonenvironmental. In this new era of nanotechnology, to overcome such concerns, natural sources which work as capping and reducing agents, including bacteria, fungi, biopolymers, and plants, are suitable candidates for synthesizing AgNPs. The surface morphology and applications of AgNPs are significantly pretentious to the experimental conditions by which they are synthesized. Available scattered information on the synthesis of AgNPs comprises the influence of altered constraints and characterization methods such as FTIR, UV–vis, DLS, SEM, TEM, XRD, EDX, etc. and their properties and applications. This review focuses on all the above-mentioned natural sources that have been used for AgNP synthesis recently. The green routes to synthesize AgNPs have established effective applications in various areas, including biosensors, magnetic resonance imaging (MRI), cancer treatment, surface-enhanced Raman spectroscopy (SERS), antimicrobial agents, drug delivery, gene therapy, DNA analysis, etc. The existing boundaries and prospects for metal nanoparticle synthesis by the green route are also discussed herein.

Fabrication of a Flexible SERS Sensing Platform with High Sensitivity and Its Application in Monitoring of Trace Benzotriazole in Tap Water

“…Hence, it can be deduced that this absorption peak should be the surface plasmon resonance absorption peak of Ag nanoparticles in Ag (0.33)-PVA/MXene (2)-PDDA. 48 Here, the plasmon resonance absorption wavelength is not close to the laser excitation wavelength. However, the results reported previously indicate that Ag nanoparticles can exhibit a strong SERS effect for the adsorbed organic molecules, although the laser excitation wavelength (632.8 nm) is not close to their plasmon wavelength (423 nm).…”

A facile green synthesis approach to silver nanoparticles using calyx fromAbelmoschus esculentusand its anthelmintic activity

“…Based on the XRD spectrum of the AE-AgNP, the average AgNP size was 39.78 nm. A few unassigned peaks were detected, which may have been caused by the existence of bioorganic compounds or proteins in the extracts that crystallized on the surface of the AgNP (Sharma et al, 2022). In a similar observation, the AgNPs synthesized from the flower extract of Mangifera indica also showed a similar pattern of peaks in XRD analysis (Ameen et al, 2019).…”

Biosynthesis, Characterization and Anthelmintic Activity of Silver Nanoparticles of Clerodendrum infortunatum Isolate

“…The sharp peak at 1315.45 cm −1 indicated C(O)-O stretching vibrations; the peak at 1031.91 cm −1 indicated the involvement of reducing sugars 52 . Furthermore, Al Masoud et al demonstrated the use of FTIR to detect biomolecules for reducing Ag+ ions and capping ginger extractproduced AgNPs 53 . The ndings showed that the signi cant peaks at 1057, 1386, 1620, and 3417 cm− 1 corresponded to primary alcohols and NO 3 and C−N stretching vibrations of aliphatic and aromatic amines, respectively 54 .…”