This copper-based polyelectrolyte greatly inhibited the growth of Gram-negative E. coli and Gram-positive S. thermophiles and S. aureus by blocking metal-binding sites in enzymes and disturbing ...

Toxicity and tumor inhibition experiments confirm the high cell toxicity and good suppression of tumor growth under near‐infrared irradiation indicating a promising prospect of FNP in the large‐scale and continuous yielding of highly stable and high‐performing photothermal‐chemotherapeutic NPs for cancer therapy. …

Formation of copper nanoparticles during the reduction of Cu2+ ions in solutions and dispersions of polycation-poly (acrylic acid) interpolymer complexes in acidic media.

Abstract. Polyelectrolyte complexation is mechanistic in formation of various biological structures as well as in technological applications. Such structure formation …

Modification of organic membranes by polyelectrolytes assemblies using layer-by-layer technique. Filtration of copper solutions through functionalized …

Ion-exchange in surface-initiated polyelectrolyte brushes provides a versatile route to the formation of catalytically active surfaces for electroless deposition of Cu. The advantage of this procedure is the covalent anchoring of the catalyst support layer, eliminating delamination of the metal film …

Polyelectrolyte multilayers are versatile materials that are used in a large number of domains, including biomedical and environmental applications. The …

While the copper market is gaining momentum, it is a good time to look at the copper mining champions in terms of copper grade in ore reserves.

Moreover, copper nanoparticles can be synthesized in-situ in the polyelectrolyte multilayer film by the chemical reduction of ions. The polyelectrolyte films containing nanocopper with antimicrobial activity can find application: in medicine to reduce infections, in burn treatment or preventing bacteria and fungi colonization on various ...

Dive into the research topics of 'Polyelectrolyte brushes as efficient ultrathin platforms for site-selective copper electroless deposition'. Together they form a unique fingerprint.

Bismuth oxychloride (BiOCl) electrodes can be a cheap alternative to anionic electrodes in a mixing entropy battery, and the polyelectrolyte coatings can be a cheaper alternative to ion-exchange memb...

Then, the modified membranes were used to perform the ultrafiltration of aqueous solutions containing copper (II) ions. Different operating conditions were tested including: polyelectrolyte concentration, polyelectrolyte nature, thickness of the PEM film or pH of the Cu (2+) solutions.

A chemical reduction process was proposed to recover copper from the retentate of polyelectrolyte enhanced ultrafiltration (PEUF). Three polyelectroly…

Polyelectrolyte brushes as efficient ultrathin platforms for site-selective copper electroless deposition.

Polyelectrolyte multilayers (PEMs) are promising drug carriers with potential applications in the delivery of poorly soluble drugs. In this article, Sumayah Abdul-Jabbar and Paul Royall discuss the approaches for PEM construction and drug release and detail several applications of multilayered particles in therapeutics.

Once characterized, PEM-modified membranes were used to remove copper ions from contaminated aqueous solutions through ultrafiltration. The pH and concentration of the polyelectrolyte solutions and the pH of the copper solution were varied to optimize the filtration of the contaminated solutions.

A natural hydrogel film was prepared using carboxymethyl cellulose (CMC), cellulose nanocrystals (CNC), and hydroxypropyl β cyclodextrin (HP-β-CD) as reactants and citric acid as the cross-linking agent and used for the controlled release of neohesperidin-copper (II) (NH-Cu (II)). The hydrogel film was characterized by ATR-FTIR, XRD, TGA …

In tests with 30 and 1 g L −1 NaCl solutions, the origin MEB with uncoated BiOCl anionic and copper hexacyanoferrate (CuHCF) cationic electrodes produces an energy density of 8 J m −2 and an average power density of 59 mW m −2. To boost the power output, the origin BiOCl and CuHCF electrodes are coated with polyelectrolytes.

Here are the ten largest copper mines by production across the world, according to GlobalData's mining database.

The removal of Cu (II), Cd (II), Ni (II) and Pb (II) from dilute aqueous solution by a poly (acrylic acid) flocculant and its cross-linked analogue. The possible removal of copper (II), cadmium (II), nickel (II) and lead (II) from dilute aqueous solution by complexation with poly (acrylic acids) was investigated.

The synergistic relationship between structure and the bulk properties of polyelectrolyte multilayer (PEM) films has generated tremendous interest in their application for loading and release of …

Gold and silver nanoparticles in polyelectrolyte multilayers film can be prepared by alternate immersion of a substrate in poly (diallyldimethylammonium) chloride (PDDA)–AuCl 4− complexes solution and poly (acrylic acid) (PAA)–Ag + complexes solution followed by reduction of the metal cations (Au 3+, Ag +) through immersion of NaBH 4 …

Ionized polyelectrolytes in solution can form a complex with oppositely charged polyelectrolytes — a polyelectrolyte complex (PEC). The present article provides a comprehensive review on PECs and their classification, theory and characterization, as well as a critical analysis of the current research. Previous article in issue.

The charge neutralization with the polyelectrolyte causes the dissolved materials to precipitate and the colloidal material to destabilize and aggregate. The …

Semantic Scholar extracted view of "Removal of copper ions from aqueous solution by adsorption onto novel polyelectrolyte film-coated nanofibrous silk fibroin non-wovens" by Weitao Zhou et al.

The Gibraltar mine was originally built in 1972 and designed to process 36,000 tonnes of ore per day. Taseko Mines came along and purchased the site in 1999, and in 2004 it gave the project a $700 million restart, realizing its vast potential for increased copper production. Now, it is the second-largest open-pit copper mine in Canada and …

The polyelectrolyte complexes (PECs) are versatile formulations formed by electrostatic interactions between oppositely charged biopolymers. PECs have been …

Nucleation of copper hydroxide nanoparticles within the polyelectrolyte multilayers occurred by cycling the polymer-coated substrates in Cu 2+ and NaOH solutions.

Crystalline nanoparticles of copper hexacyanoferrate, which has an ultra-low strain open framework structure, can be operated as a battery electrode in inexpensive aqueous electrolytes and round-trip energy efficiencies of 99% can be achieved.

Scalable Yielding of Highly Stable Polyelectrolyte-Coated Copper Sulfide Nanoparticles by Flash Nanoprecipitation for Photothermal-Chemotherapeutics