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Showing 1-30 of 34 results for "366404" within Papers
Weihang Ji et al.
Biomacromolecules, 18(8), 2583-2593 (2017-06-29)
Antibacterial polymers are potentially powerful biocides that can destroy bacteria on contact. Debate in the literature has surrounded the mechanism of action of polymeric biocides and the propensity for bacteria to develop resistance to them. There has been particular interest
Ben A Humphreys et al.
Soft matter, 15(1), 55-64 (2018-12-12)
The effect of molecular weight and temperature on the phase transition and internal structure of poly(N-isopropylacrylamide) brush modified colloidal silica particles was investigated using dynamic light scattering (DLS) and small angle neutron scattering (SANS) between 15 and 45 °C. Dry
Yixiao Zhang et al.
ACS applied materials & interfaces, 12(36), 40031-40041 (2020-08-19)
Light-mediated remote control of stem cell fate, such as proliferation, differentiation, and migration, can bring a significant impact on stem cell biology and regenerative medicine. Current UV/vis-mediated control approaches are limited in terms of nonspecific absorption, poor tissue penetration, and
Federica Stazi et al.
The Journal of organic chemistry, 69(4), 1097-1103 (2004-02-14)
1,1,4,7,10,10-Hexamethyltriethylenetetramine (HMTTA) emerged from a limited parallel screening of selected polyamines as the most appropriate additive for an especially problematic Koenigs-Knorr glucuronidation. This initial finding rapidly evolved into a reliable and high-yielding procedure through the use of two sets of
Masato Mizutani et al.
Journal of the American Chemical Society, 132(21), 7498-7507 (2010-05-12)
All polymerization reactions are categorized into two large different families, chain- and step-growth polymerizations, which are typically incompatible. Here, we report the simultaneous chain- and step-growth polymerization via the metal-catalyzed radical copolymerization of conjugated vinyl monomers and designed monomers possessing
Kai Yu et al.
Biomaterials, 166, 79-95 (2018-03-20)
The information regarding the nature of protein corona (and its changes) and cell binding on biomaterial surface under dynamic conditions is critical to dissect the mechanism of surface-induced thrombosis. In this manuscript, we investigated the nature of protein corona and
Ming-Fong Tsai et al.
International journal of nanomedicine, 15, 8623-8639 (2020-11-13)
To improve responses to tumor microenvironments for achieving a better therapeutic outcome in combination cancer therapy, poly(ε-caprolactone)-SS-poly(methacrylic acid) diblock copolymer (PCL-SS-PMAA) with a disulfide linkage between the hydrophobic and hydrophilic junctions was synthesized. Repeating units of PCL and PMAA in
Di Xiong et al.
Pharmaceutics, 12(3) (2020-03-18)
Good stability and controlled drug release are important properties of polymeric micelles for drug delivery. A good candidate for drug delivery must have outstanding stability in a normal physiological environment, followed with low drug leakage and side effects. Moreover, the
Shuo Zeng et al.
Polymers, 13(2) (2021-01-10)
This study aimed to modify an electrospun regenerated cellulose (RC) nanofiber membrane by surface grafting 2-(dimethylamino) ethyl methacrylate (DMAEMA) as a monomer via atom transfer radical polymerization (ATRP), as well as investigate the effects of ATRP conditions (i.e., initiation and
Nusheng Chen et al.
Carbohydrate polymers, 128, 122-129 (2015-05-26)
Biocomposites with tunable properties were successfully prepared through ionic assembly between anionic carboxymethyl cellulose (CMC) and cationic copolymers (quaternized poly(l-lactide)-block-poly N,N-dimethylamino-2-ethyl methacrylate) (PLA-b-PDMAEMA). The quaternized PDMAEMA segment not only works as a compatibilizer between hydrophilic CMC and hydrophobic PLA, but
Okhil K Nag et al.
Journal of pharmaceutical sciences, 104(1), 114-123 (2014-11-14)
We report the synthesis of an acyl-anchored superhydrophilic polymer (SHP) for external surface modification of liposome surface. N¹-(2-aminoethyl)-N⁴-hexadecyl-2-tetradecylsuccinamide conjugated with SHP (HDAS-SHP) was synthesized and used for modifying the liposome surface. Unlike polyethylene glycol (PEG)-phospholipids, which are commonly used for
Riccardo Bruni et al.
Journal of controlled release : official journal of the Controlled Release Society, 255, 94-107 (2017-04-12)
We explored the use of new drug-loaded nanocarriers and their targeted delivery to the kidney glomerulus and in particular to podocytes, in order to overcome the failure of current therapeutic regimens in patients with proteinuric (i.e. abnormal amount of proteins
Nusheng Chen et al.
Carbohydrate polymers, 225, 115207-115207 (2019-09-16)
Cellulose-based biocompatible, tunable and injectable hydrogels embedded with pH-responsive diblock copolymer micelles were constructed to achieve localized drug delivery with prolonged, stimuli-driven and slow-release function. First, we prepared two types of modified carboxymethyl cellulose (CMC) including hydrazide-modified carboxymethyl cellulose (CMC-NH2)
Elisa Martinelli et al.
Biofouling, 32(1), 81-93 (2016-01-16)
Block copolymers made from a poly(dimethyl siloxane) (Si) and a poly(meth)acrylate carrying oxyethylene (EG) or fluoroalkyl (AF) side chains were synthesized and incorporated as surface-active components into a silicone matrix to produce cross-linked films with different surface hydrophilicity/phobicity. Near-edge X-ray
Tahani Kaldéus et al.
ACS nano, 13(6), 6409-6420 (2019-05-16)
A molecularly engineered water-borne reactive compatibilizer is designed for tuning of the interface in melt-processed thermoplastic poly(caprolactone) (PCL)-cellulose nanocomposites. The mechanical properties of the nanocomposites are studied by tensile testing and dynamic mechanical analysis. The reactive compatibilizer is a statistical
Erwan Gicquel et al.
Biomacromolecules, 20(7), 2545-2556 (2019-06-28)
This study investigates the adsorption of a block copolymer composed of a poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) cationic polyelectrolyte and a poly(di(ethylene glycol) methyl ethermethacrylate) (PDEGMA) on oxidized cellulose nanocrystals (TO-CNCs) to produce hydrogels. PDMEAMA- b-PDEGMA was synthesized by atom-transfer radical polymerization.
Yuan Liu et al.
Acta biomaterialia, 110, 231-241 (2020-05-08)
The shapes of drug carriers have significant effects on the drug's blood circulation lifetime and tumor accumulation levels. In this study, nonspherical drug carriers of fiber rods are enhanced with hierarchically targeting capabilities to achieve long circulation in blood, on-demand
Stefanie L Baker et al.
Nature communications, 10(1), 4718-4718 (2019-10-19)
Almost all commercial proteins are purified using ammonium sulfate precipitation. Protein-polymer conjugates are synthesized from pure starting materials, and the struggle to separate conjugates from polymer, native protein, and from isomers has vexed scientists for decades. We have discovered that
Barbara Mendrek et al.
International journal of pharmaceutics, 589, 119823-119823 (2020-08-31)
We designed a novel thermoresponsive system of nanolayers composed of star poly[oligo(ethylene glycol) methacrylate]s (S-POEGMA) covalently bonded to a solid support and covered with polyplexes of cationic star polymers and plasmid DNA (pDNA). S-POEGMA stars were attached to the solid
Sung Hoon Ahn et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 15(9), 1841-1848 (2014-05-13)
A facile way of controlling the structure of TiO(2) by changing the amount of water to improve the efficiency of dye-sensitized solar cells (DSSCs) is reported. Hierarchically ordered TiO(2) films with high porosity and good interconnectivity are synthesized in a
Yunwei Huang et al.
Polymers, 12(1) (2020-01-18)
Novel approach has been constructed for preparing the amphiphilic star copolymer pH/reduction stimuli-responsive cross-linked micelles (SCMs) as a smart drug delivery system for the well-controlled anti-tumor drug doxorubicin (DOX) release. The SCMs had a low CMC value of 5.3 mg/L.
Bryan R Coad et al.
Langmuir : the ACS journal of surfaces and colloids, 23(23), 11791-11803 (2007-10-11)
We report the use of aqueous surface-initiated atom transfer radical polymerization (SI-ATRP) to grow polymer brushes from a "gigaporous" polymeric chromatography support for use as a novel size exclusion chromatography medium. Poly(N,N-dimethylacrylamide) (PDMA) was grown from hydrolyzable surface initiators via
Hsuan-Ying Chen et al.
Colloids and surfaces. B, Biointerfaces, 156, 243-253 (2017-05-24)
Novel comb-shaped amphiphilic copolymers based on methoxy poly(ethylene glycol)-b-[poly(ε-caprolactone)-g-poly(methacrylic acid)] (MPCL-g-pMAA), were synthesized via ring opening polymerization (ROP) and atom transfer radical polymerization (ATRP) for drug delivery systems. MPCL-g-pMAAs with various MAA repeating units self-assemble into a core-shell structure in
Timothy J Murdoch et al.
Journal of colloid and interface science, 490, 869-878 (2016-12-23)
The thermoresponse of poly(di(ethyleneglycol) methyl ether methacrylate) (PMEO
Fang Sun et al.
Nature communications, 7, 13437-13437 (2016-11-12)
Surface-enhanced Raman spectroscopy (SERS) is an ultrasensitive analytical technique with molecular specificity, making it an ideal candidate for therapeutic drug monitoring (TDM). However, in critical diagnostic media including blood, nonspecific protein adsorption coupled with weak surface affinities and small Raman
Stefanie L Baker et al.
Biomacromolecules, 19(9), 3798-3813 (2018-08-08)
The power and elegance of protein-polymer conjugates has solved many vexing problems for society. Rational design of these complex covalent hybrids depends on a deep understanding of how polymer physicochemical properties impact the conjugate structure-function-dynamic relationships. We have generated a
Kai Yu et al.
Biomaterials, 116, 69-81 (2016-12-04)
Catheter-associated urinary tract infections (CAUTIs) represent one of the most common hospital acquired infections with significant economic consequences and increased patient morbidity. CAUTIs often start with pathogen adhesion and colonization on the catheter surface followed by biofilm formation. Current strategies
Laetitia Mespouille et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 14(21), 6369-6378 (2008-06-10)
Adaptive and amphiphilic poly(N,N-dimethylamino-2-ethyl methacrylate-graft-poly[epsilon-caprolactone]) co-networks (netP(DMAEMA-g-PCL)) were synthesized from a combination of controlled polymerization techniques. Firstly, PCL cross-linkers were produced by ring-opening polymerization (ROP) of epsilon-CL initiated by 1,4-butane-diol and catalyzed by tin(II) 2-ethylhexanoate ([Sn(Oct)2]), followed by the quantitative
Wenjing Lin et al.
Acta biomaterialia, 48, 378-389 (2016-12-19)
Co-delivery of antigen-encoding plasmid DNA (pDNA) and immune-modulatory molecules has importance in advancing gene-based immunotherapy and vaccines. Here novel star polymer nanocarriers were synthesized for co-delivery of pDNA and imiquimod (IMQ), a poorly soluble small-molecule adjuvant, to dendritic cells. Computational
Larisa V Sigolaeva et al.
Polymers, 12(7) (2020-07-12)
We demonstrate the application of amphiphilic ionic poly(n-butylmethacrylate)-block- poly(2-(dimethylamino)ethyl methacrylate) diblock copolymers (PnBMA40-b-PDMAEMA40, PnBMA40-b-PDMAEMA120, PnBMA70-b-PDMAEMA120) for dispersing multiwalled carbon nanotubes (MWCNTs) in aqueous media, a subsequent efficient surface modification of screen-printed electrodes (SPEs), and the application of the modified SPEs
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