Preparation of stable sub 10 nm copper nanopowders redispersible in polar and non-polar solvents

Antibacterial metal ion release from diamond-like carbon modified surfaces for novel multifunctional implant materials

“…Similarly, the Cu NPs were synthesized employing a modification of a standard protocol 26 . Here, a copper salt (CuCl2 ≥98%, Merck, 0.4 g), PVP (6.48 g) and poly(ethylene glycol) (PEG, MW 8000, Sigma Aldrich, 8.52 g), were dissolved under a slow N2 stream in 120 ml deionized water and heated to 70°C (oil bath temperature).…”

Copper-gold nanoparticles: Fabrication, characteristic and application as drug carriers

“…Sastry et al have proven that eco-friendly materials like curd, milk, herbal extracts and lemon juice can be exploited as capping agents for Cu NPs production [23]. Most of scientific reports have shown that polyvinylpyrrolidone (PVP) or its derivatives could be employed as capping agent, due to their harmless and nontoxic properties and also their application in medicine and pharmaceutical industry [24,25]. Based on the literature data, in this investigation ascorbic acid was applied as a reducing agent and PVP as a capping agent.…”

Influence of polymer washing on thermal conductivity enhancement of Cu nanofluids

“…Copper nanofluid using water as a base fluid and PVP as stabilizing agent was synthesized by modifying the protocol published by Chowdhury et al 9 Briefly, PVP solution was prepared initially by dispersing 2.5‐g PVP in 40 ml deoxygenated distilled water by vigorous stirring. Then, the above solution was mixed with 0.136‐g copper chloride dihydrate.…”

“…In the former case, nanofluid was prepared by synthesizing the nanoparticles in the base fluid and in the latter case by dispersing solid nanoparticle powder in base fluid under ultrasonication. In both the cases, stability of nanofluid was maintained by coating the surface of nanoparticles with surfactants or polymers 8–11 …”