Background/Aim. The materials used nowadays for bone replacement do not fully meet the requirements complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve tissue no fulfilling material has been found yet. This study investigated influence of poly-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) as coatings hydroxyapatite (HAP) carriers on rege...

Effective flotation of fine particles is a problem for mineral processing. In this paper, flocculant mostly used in heavy metal ion treatment was an arsenopyrite system. The adsorption behavior and performance PEI on the xanthate were investigated through zeta potential adsorbed amount measurements, XPS size distribution detections, micro-flotation tests. Zeta results showed that 40 mg/L polyet...

Activated carbon paper-based materials were prepared from softwood pulp, activated powder, and polyester fiber through wet forming process. Then polyethyleneimine was loaded on the using physical impregnation method to fabricate green, low cost, degradable PEI/activated composite adsorbent (PPCA) for removal of Cr(VI) drinking water. The surface characteristics analyzed by SEM, EDX, BET, FT-IR,...

Photodynamic Therapy (PDT) has been applied clinically for treating cancers and microbial infections. By combining a photosensitizer (PS), the specific light oxygen produces reactive species to destroy target cells. The chlorin e6 based-PDT antimicrobial However, low bio-availability non-selective accumulation of PS that limits its clinical acceptance. new formula poly-L-lysine conjugate (pL-ce...

Due to their imaging and radiosensitizing properties, ultrasmall gadolinium chelate-coated gold nanoparticles (AuNP) represent a promising approach in the diagnosis treatment of tumors. However, poor pharmacokinetic profile, especially rapid renal clearance prevents from an efficient exploitation potential for medical applications. The present study focuses on strategy which resides encapsulati...

Objective(s): Polyethylenimine (PEI) is one of the most widely used polymers in gene delivery. The aim of this study was to modify PEI by replacing some of its primary amines with Brevinin 2R (BR-2R) peptide in order to increase the efficiency of gene delivery.Materials and Methods: Polyethylenimine was modified by BR-2R peptide by two d...

In this study, functional coatings with N-halamine structure were formed on cotton fabrics by dopamine (DA) auto-deposition and DA/Polyethyleneimine (PEI) covalent co-deposition, respectively. SEM、UV-Vis XPS had confirmed the deposition of DA DA/ polydopamine (PDA) fabrics. When mass ratio DA/PEI was 1:1.5, a uniform coating formed. XRD indicated that oxidative sodium hypochlorite solution did ...

Abstract pH shift induced Aqueous phase separation (APS) is a novel and more sustainable water-based approach to create microfiltration, ultrafiltration, nanofiltration membranes. APS allows for control over membrane pore size structure in ways analogous traditional non-solvent (NIPS). Unfortunately, existing approaches require extreme shifts (from 14 1) obtain successful membranes, limiting th...

BACKGROUND Local drug delivery from polymer-coated stents has demonstrated efficacy for preventing in-stent restenosis; however, both the inflammatory effects of polymer coatings and concerns about late outcomes of drug-eluting stent use indicate the need to investigate innovative approaches, such as combining localized gene therapy with stent angioplasty. Thus, we investigated the hypothesis t...