The distribution of silver (Ag) into remote organs secondary to the application of Ag nanoparticles (Ag-NP) to the lung is still incompletely understood and was investigated in the rat with imaging methods. Dose-finding experiments were carried out with 50 nm- or 200 nm-sized polyvinyl pyrrolidine (PVP)-coated Ag-NP using alveolar macrophages in vitro and female rats, which received Ag-NP via i...

Silver-cobalt nanoparticles are used in medicine. In this study, the effects of silver-cobalt nanoparticles on functional tests and liver tissue changes in adult male rats were investigated. 28 adult male Wistar rats weighing 180-220 g were divided into 4 groups of 7. Control group, Experimental group1 received 25mg / kg of silver-cobalt nanoparticles (AgCo NPs) in which silver nanoparticle (Ag...

BACKGROUND Multidrug resistant microorganisms are a growing challenge and new substances that can be useful to treat infections due to these microorganisms are needed. Silver nanoparticle may be a future option for treatment of these infections, however, the methods described in vitro to evaluate the inhibitory effect are controversial. RESULTS This study evaluated the in vitro activity of si...

Nanosilver has become one of the most widely used nanomaterials in consumer products because of its antimicrobial properties. Public concern over the potential adverse effects of nanosilver's environmental release has prompted discussion of federal regulation. In this paper, we assess several classes of consumer products for their silver content and potential to release nanosilver into water, a...

Coriander leaves and seeds have been highly appreciated since ancient times, not only due to their pleasant flavors but also due to their inhibitory activity on food degradation and their beneficial properties for health, both ascribed to their strong antioxidant activity. Recently, it has been shown that coriander leaf extracts can mediate the synthesis of metallic nanoparticles through oxidat...

Centrifugation-based assays are commonly employed to study protein-membrane affinity or binding using lipid bilayer vesicles. An analogous assay has been developed to study nanoparticle-membrane interactions as a function of nanoparticle surface functionalization, membrane lipid composition, and monovalent salt concentration (NaCl). Anionic (carboxylic acid, Ag-COOH), cationic (amine, Ag-NH), a...

We presented a facile method for the preparation of a portable detection column integrated with silver nanoparticle (Ag NP) functionalized glass fibers for surface-enhanced Raman scattering (SERS). Ag NPs were immobilized onto the surface of fibers through a two-step self-assembly process, and the cycling of the assembly process was repeated to optimize the SERS activity. The optimized fibers c...

Abstract: Gold (Au) and silver (Ag) nanoparticles were synthesized by laser ablation in water. The average sizes of Au Ag are 18,4 nm 21,8 respectively. ZnS:Mn2+ with size 3-5 prepared a co-precipitation method. photoluminescence ZnS:Mn2+solution mixture nanoparticle colloids was investigated. quenching effect on Mn2+ emission at 601 band observed the presence while D-A 445 enhanced blue shifte...

This paper presents a systematic study of the investigation nanoparticle (NP) agglomerate films fabricated via depositing spark-generated Au, Ag, and Au/Ag NPs onto quartz microscope coverslips in low-pressure inertial impactor. The primary focus is to characterize these nanostructures examine their potential application surface-enhanced Raman spectroscopy (SERS). characterization produced was ...

In this work, we used time-resolved imaging to study the dynamics of the laser-induced forward transfer (LIFT) process of a silver nanoparticle (NP) ink (NP size: 30–50 nm). LIFT is a versatile direct write technique in which a variety of functional materials can be transferred from a donor substrate to a receiving substrate with high spatial resolution. Two different LIFT configurations were e...