Phenol is the toxicant present in cigarette smoke that causes pulmonary diseases, eyes infection, and even various kinds of cancer. So, in this research, an attempt was done to prepare a suitable absorbent to remove phenol from cigarette smoke. A novel bio-based adsorbent succinylated carboxymethyl starch (S-CMS) was prepared by reacting carboxymethyl starch (CMS) with succinic anhydride (SA) in the presenting of N, N-dimethylformamide (DMF) solvent and pyridine. The structure of the S-CMS was c...
#1Anle Zhang(Huada: Beijing University of Chemical Technology)
#2Teng Qiu(Huada: Beijing University of Chemical Technology)H-Index: 17
Last. Xiaoyu Li(Huada: Beijing University of Chemical Technology)H-Index: 29
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The fast development of Pickering emulsion systems inspires burgeoning demand on the universal synthesis platform for the surface modification of solid particle emulsifiers. In this work, a mild and convenient “visible light–mediated surface grafting through (VSGT)” strategy is proposed. Through the two-step strategy, silica nanoparticles (SNPs) were firstly modified by vinyl alkoxysilane and then used as the substrate for grafting homopolymer brushes via reversible addition-fragmentation chain ...
#1Daniel Horák(CAS: Academy of Sciences of the Czech Republic)H-Index: 41
#2Karolina Turnovcova(CAS: Academy of Sciences of the Czech Republic)H-Index: 14
Last. Pavla Jendelova(Charles University in Prague)H-Index: 47
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Block copolymer comprising of hydrophilic poly[N-(2-hydroxypropyl)methacrylamide] (PHP) and reactive poly[N-(2-hydrazinyl-2-oxoethyl)methacrylamide] (PMAH) was synthesized by a reversible addition-fragmentation chain transfer (RAFT) polymerization and conjugated with doxorubicin (Dox) and/or RGDS targeting peptide via one-step reaction using N-γ-maleimidobutyryl-oxysuccinimide ester. The resulting copolymer served as a coating of magnetic γ-Fe2O3 nanoparticles that were tested in cell proliferat...
Orientational screening is a recently proposed strategy for the selection of DNA templates for silver nanoclusters (AgNCs). The feasibility of this strategy is facilitated by the accumulated experience of synthesizing DNA-templated AgNCs. Herein, a single-stranded DNA template of endowing AgNCs with high brightness (QY = 27.99%) was obtained through an orientational screening process. It was also found that double-stranded DNA rich in GC base pairs could also serve as synthesizing template for A...
#2Bingbing Wang(CCNU: Central China Normal University)
Last. Jiang Duan(CCNU: Central China Normal University)
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Hyperbranched polyethylenimines (hPEIs) have diverse biological applications; however, the intrinsic toxicity is a major concern in developing hPEI-based biomaterials. This work reports the synthesis, properties, and an application as a biocompatible hPEI-based material, namely, fluorescent oxidized hPEI polymeric nanoparticles (F-ohPEIs). The synthesis was achieved through oxidation of hPEI with H2O2 and subsequent null cross-linking with formaldehyde, imparting to F-ohPEIs’ desired properties ...
We studied the diffusion of ellipsoidal colloids by using a combination of single-particle tracking (SPT) and differential dynamic microscopy (DDM). The micrometer-sized polystyrene particles have an aspect ratio of ≈ 4.3. SPT provides the particle trajectories and translation diffusion coefficient of the particles. DDM analyses appropriate for anisotropic particles were then used to extract the rotational diffusion coefficient of the particles. The results matched well with the theoretical pred...
Here, we report on the evaluation of critical packing parameters, PC, of l-tyrosine and ethylene glycol (PEG) amphiphilic block copolymers. The copolymers were synthesized via l-tyrosine-N-carboxyanhydride ring-opening polymerization using different amino-terminated PEGs as macroinitiators. The size and shape of their associates formed in water were investigated by transmission electron microscopy and dynamic and static light scatterings. The copolymers containing 20–30 wt. % of Tyr formed rod-l...