Time-dependent effect in green synthesis of silver nanoparticles

Abstract

The application of “green” chemistry rules to nanoscience and nanotechnology is very important in the preparation of various nanomaterials. In this work, we successfully developed an eco-friendly chemistry method for preparing silver nanoparticles (Ag-NPs) in natural polymeric media. The colloidal Ag-NPs were synthesized in an aqueous solution using silver nitrate, gelatin, and glucose as a silver precursor, stabilizer, and reducing agent, respectively. The properties of synthesized colloidal Ag-NPs were studied at different reaction times. The ultraviolet-visible (UV-vis) spectra were in excellent agreement with the obtained nanostructure studies performed by transmission electron microscopy (TEM) and their size distributions. The prepared samples were also characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The use of eco-friendly reagents, such as gelatin and glucose, provides green and economic attributes to this work.

Chrysopogon zizanioides aqueous extract mediated synthesis characterization of crystalline silver and gold nanoparticles for biomedical applications

“…24 The bioreduced chlorauric and silver solutions were centrifuged at 10,000 rpm for 15 minutes, and the pellets were washed three times with 20 mL of deionized water. 25 The resulting purified suspensions were dried and ground with KBr pellets and analyzed by FTIR. The FTIR were recorded in the range of 400-4000 cm −1 .…”

New procedure to synthesize silver nanoparticles and their interaction with local anesthetics

“…[12][13][14][15][16] Bioconjugates of AgNPs have also been prepared and their self-assembly investigated. [17][18][19][20] Various methods, among them biogenic methods, 12,[14][15][16][20][21][22][23][24][25][26][27] have been used for the synthesis of AgNPs. Glucose is well known for reducing Ag + to Ag in alkaline solutions, and this method was also used…”

“…12,22,[25][26][27] In order to protect the obtained AgNPs, besides existing oxidation products of glucose in the reaction system, different stabilizing agents were added, such as gelatin, 22,25 hemicelluloses, 26 or starch. 27 This work reports a new procedure to synthesize AgNPs, using glucose as reducing agent but with an original stabilizing system consisting of tetraethyl orthosilicate (TEOS) and We are interested in understanding the molecular mechanism of local anesthetics, particularly in interfacial phenomena, that occur at the biological membrane level.…”

Biosynthesis of silver nanoparticles using pennyroyal water extract as a green route

“…Nanomaterials have interested a lot of attentions due to the remarkable difference in structural and physical properties of atoms and molecules [1]. Nanomaterials can improve the human life and its environment.…”