On the basis of the inhibition of double strand DNA (dsDNA)-templated fluorescent copper nanoparticles (CuNPs) by pyrophosphate (PPi), a novel label-free turn-on fluorescent strategy to detect alkaline phosphatase (ALP) under physiological conditions has been developed. This method relies on the strong interaction between PPi and Cu(2+), which would hamper the effective formation of fluorescent...

Objective: Nanotechnology is an emerging technology which has wide applications in many fields. Prime concern of research nanotechnology the synthesis nano-material with controlled size and shape. Recently, biosynthesis metallic nano-particles gained popularity owing to its eco-friendliness. The increasing use Copper nanoparticles (CuNPs) medicine industry demands understanding their potential ...

An access to copper(0) nanoparticles (CuNPs) from readily available organocopper reagents is reported. This original amine-free methodology proves be practical, fast, and highly reproducible. It yields spherical CuNPs with an excellent control of their size shape. These are fully characterized by electronic microscopy (transmission electron high-resolution TEM), X-ray photoelectron spectroscopy...

BACKGROUND Biofilm formation is a major virulence factor in different bacteria. Biofilms allow bacteria to resist treatment with antibacterial agents. The biofilm formation on glass and steel surfaces, which are extremely useful surfaces in food industries and medical devices, has always had an important role in the distribution and transmission of infectious diseases. OBJECTIVES In this stud...

The bactericidal activity, optical spectra, electron-microscopic images and electrical resistance of cotton textile modified with bimetallic silver/copper nanoparticles (Ag/CuNPs) against the series of the microorganisms (Escherichia coli, Staphylococcus aurous, and Pseudomonas aeruginosa) are studied. NPs’ modified fabrics were produced by the developed by us method of soft heat treatment of t...

In the present work, authors prepared nanocomposite cotton gauze cloth (NCGC) by in situ generating nanoparticles of silver (ANPs) and copper (CuNPs) their binary metallic (BMNPs) using aqueous extraction Azadirachta indica leaves as a reducing agent. The NCGCs had roughly spherical AgNPs, CuNPs BMNPs size range 50–120 nm. corresponding mean was 94, 89 87 nm respectively. participation hydroxyl...

Copper nanoparticles (CuNPs) have been widely used in various industrial and commercial applications, which become a potential threat to aquatic organisms. Nevertheless, their toxicity the epididymis sperm remains little known. In this study, we evaluated effect of CuNPs copper ions (CuSO4) on spermatozoa viability, epididymal structure, antioxidant enzyme activity, inflammatory cytokines cauda...

ABSTRACT: The use of new compounds to increase the shelf life of more perishable foods based on nanoparticles and biodegradable polymers have been developed in packaging. Chitosan (Cts) is a natural biopolymer with excellent biodegradability and nontoxicity and antibacterial effect. In this research antibacterial copper nanoparticles (CuNPs) were incorporated in the biodegradable chitosan matri...

The effort of copper nanoparticle exploration for antibacterial cleaning agents needs to prevent infection or contamination microorganisms such as bacteria and viruses due its potential characteristic an environmentally benign material. synthesis nanoparticles using 0.02 M Cu(NO3)2 a precursor red dragon fruit extract bioreduction agent has been conducted. extraction process was done by the mac...

Photocatalytic semiconductors require maintaining stability and pursuing higher efficiencies. The studied systems were silicon nanowires (SiNWs), with cobalt oxide nanoparticles (SiNWs-CoONPs), copper (SiNWs-CuNPs). SiNWs synthesized by metal-assisted chemical etching (MACE) from wafers keeping the remaining silver for all three sample types. about 23–30 µm in length. CoONPs CuNPs deposited on ...