Metastability of nematic gels made of aqueous chitin nanocrystal dispersions.

abstract：:We describe investigations of insulin release from thermoresponsive microgels using variable temperature (1)H NMR. Microgel particles composed of poly(N-isopropylacrylamide) were loaded with the peptide via a swelling technique, and this method was compared to simple equilibrium partitioning. Variable temperature (1)H...

journal_title：Biomacromolecules

authors： Nolan CM,Gelbaum LT,Lyon LA

更新日期：2006-10-01 00:00:00

abstract：:Immunological detection has been developed into a sensitive and versatile technique and is based on two requisite elements: targeting antibodies and an indicator, usually in the form of horseradish peroxidase or alkaline phosphatase. The specificity and turnover rate of these enzymes provide an efficient means of sign...

journal_title：Biomacromolecules

authors： Wurtzler EM,Wendell D

更新日期：2014-01-13 00:00:00

abstract：:We report a robust method to manufacture polyacrylamide-based functional hydrogel microspheres with readily tunable macroporous structures by utilizing a simple micromolding-based technique. Specifically, surface tension-induced droplet formation of aqueous solutions of chitosan and acrylamide in 2D-shaped micromolds ...

journal_title：Biomacromolecules

authors： Jung S,Abel JH,Starger JL,Yi H

更新日期：2016-07-11 00:00:00

abstract：:We study the self-assembly of genetically engineered protein-based triblock copolymers consisting of a central pH-responsive silk-like middle block (S(H)n, where S(H) is a silk-like octapeptide, (GA)3GH and n is the number of repeats) flanked by hydrophilic random coil outer blocks (C2). Our previous work has already ...

journal_title：Biomacromolecules

authors： Beun LH,Storm IM,Werten MW,de Wolf FA,Cohen Stuart MA,de Vries R

更新日期：2014-09-08 00:00:00

abstract：:Nanofibrous materials containing the antitumor drug doxorubicin hydrochloride (DOX) were easily prepared using a one-step method by electrospinning of DOX/poly(L-lactide-co-D,L-lactide) (coPLA) and DOX/quaternized chitosan (QCh)/coPLA solutions. The pristine and DOX-containing mats were characterized by ATR-FTIR and X...

journal_title：Biomacromolecules

authors： Ignatova MG,Manolova NE,Toshkova RA,Rashkov IB,Gardeva EG,Yossifova LS,Alexandrov MT

更新日期：2010-06-14 00:00:00

abstract：:Spider silk has been extensively studied for its outstanding mechanical properties. Partial intermediate and C-terminal sequences of different spider silk proteins have been determined, and during the past decade also N-terminal domains have been characterized. However, only some of these N-terminal domains have been ...

journal_title：Biomacromolecules

authors： Rising A,Hjälm G,Engström W,Johansson J

更新日期：2006-11-01 00:00:00

abstract：:Major ampullate silk, also known as dragline silk, is one of the strongest biomaterials known. This silk is composed of two proteins, major ampullate spidroin 1 (MaSp1) and major ampullate spidroin 2 (MaSp2). Only partial cDNA sequences have been obtained for these proteins, and these sequences are toward the C-termin...

journal_title：Biomacromolecules

authors： Motriuk-Smith D,Smith A,Hayashi CY,Lewis RV

更新日期：2005-11-01 00:00:00

abstract：:A variety of important biological events are mediated by the multivalent interaction between relevant oligosaccharides and multiple saccharide receptors on lectins, toxins, and cell surfaces; a variety of glycopolymeric materials have therefore been investigated in studies aimed at manipulating these events. The synth...

journal_title：Biomacromolecules

authors： Polizzotti BD,Kiick KL

更新日期：2006-02-01 00:00:00

abstract：:Glycosaminoglycan (GAG)-protein binding governs critically important signaling events in living matter. Aiming at a quantitative analysis of the involved processes, we herein present a thermodynamic study of the interaction of the model GAG heparin and lysozyme in aqueous solution. Heparin is a highly charged linear p...

journal_title：Biomacromolecules

authors： Walkowiak JJ,Ballauff M,Zimmermann R,Freudenberg U,Werner C

更新日期：2020-11-09 00:00:00

abstract：:The antiproliferative activity of alkylated heparin, in which the terminal end of heparin is derivatized with an alkyl group (butyl, octyl, lauryl, stearyl), was examined using vascular smooth muscle cells. The proliferation of cells, which were growth-arrested prior to addition of heparin, was inhibited in proportion...

journal_title：Biomacromolecules

authors： Gohda M,Magoshi T,Kato S,Noguchi T,Yasuda S,Nonogi H,Matsuda T

更新日期：2001-01-01 00:00:00

abstract：:A strategy to manipulate the disulfide bond breaking triggered unfolding, and subsequently assembly of human serum albumin (HSA) in a lipophilic drug-dependent manner is present. In this study, the hydrophobic region, a molecular switch of the HSA, was regulated to form HSA-paclitaxel (HSA-PTX) nanoparticles by a faci...

journal_title：Biomacromolecules

authors： Gong G,Xu Y,Zhou Y,Meng Z,Ren G,Zhao Y,Zhang X,Wu J,Hu Y

更新日期：2012-01-09 00:00:00

abstract：:Incorporating charged amino acid side chains in polypeptide polymer backbones to improve solubility usually leads to reduced secondary structuring. Here we show that highly water soluble (>15 mg.mL-1) β-sheets can be obtained via nucleotide monophosphate grafting onto simple poly(γ-propargyl- L-glutamate) backbone. Th...

journal_title：Biomacromolecules

authors： Nguyen M,Stigliani JL,Bijani C,Verhaeghe P,Pratviel G,Bonduelle C

更新日期：2018-10-08 00:00:00

abstract：:It was aim of the study to investigate the in vivo potential of a novel insulin-thiomer complex nanoparticulate delivery system. Insulin loaded nanoparticles were obtained by the formation of hydrogen bonds between poly(vinyl pyrrolidone) (PVP) and poly(acrylic acid)-cysteine (PAA-Cys) or poly(acrylic acid) (PAA), res...

journal_title：Biomacromolecules

authors： Deutel B,Greindl M,Thaurer M,Bernkop-Schnürch A

更新日期：2008-01-01 00:00:00

abstract：:Transparent and bendable regenerated cellulose films prepared from aqueous alkali (NaOH or LiOH)/urea (AU) solutions exhibit high oxygen barrier properties, which are superior to those of conventional cellophane, poly(vinylidene chloride), and poly(vinyl alcohol). Series of AU cellulose films are prepared from differe...

journal_title：Biomacromolecules

authors： Yang Q,Fukuzumi H,Saito T,Isogai A,Zhang L

更新日期：2011-07-11 00:00:00

abstract：:By monitoring the thermally driven displacements of imbedded polystyrene microspheres via video fluorescence microscopy, we quantified the microstructural and micromechanical heterogeneities of wheat gliadin suspensions. We found that the degree of heterogeneity of the suspensions, as measured by the width and skewnes...

journal_title：Biomacromolecules

authors： Xu J,Tseng Y,Carriere CJ,Wirtz D

更新日期：2002-01-01 00:00:00

abstract：:A poly[(R)-3-hydroxybutyrate] (P(3HB))-degrading marine bacterium (strain NK-1, JCM10458) was isolated from the Pacific Ocean deep-sea floor (1165 m in depth) in Japan. The organism was a motile and Gram negative, aerobic, and rod-shaped bacterium, and its DNA had a guanine-plus-cytosine content of 57.7 mol%. On the b...

journal_title：Biomacromolecules

authors： Kasuya K,Mitomo H,Nakahara M,Akiba A,Kudo T,Doi Y

更新日期：2000-07-01 00:00:00

abstract：:Limited studies have been done on the interactions between subunits of self-assembling protein cages. E2 protein cage from Bacillus stearothermophilus was investigated in this work to impart pH-sensitive disassembly profile. Key amino acids were identified at the intratrimer and intertrimer interfaces, and histidine r...

journal_title：Biomacromolecules

authors： Peng T,Lim S

更新日期：2011-09-12 00:00:00

abstract：:Weissella confusa VTT E-90392 is an efficient producer of a dextran that is mainly composed of α-(1→6)-linked D-glucosyl units and very few α-(1→3) branch linkages. A mixture of the Chaetomium erraticum endodextranase and the Aspergillus niger α-glucosidase was used to hydrolyze W. confusa dextran to glucose and a set...

journal_title：Biomacromolecules

authors： Maina NH,Virkki L,Pynnönen H,Maaheimo H,Tenkanen M

更新日期：2011-02-14 00:00:00

abstract：:Five poly(betaine) brushes were prepared, and their resistance to blood plasma fouling was studied. Two carboxybetaines monomers were copolymerized with 2-hydroxyethyl methacrylate (HEMA) to prepare novel hydrogels. By increasing the content of the zwitterionic comonomer, a 4-fold increase in the water content could b...

journal_title：Biomacromolecules

authors： Kostina NY,Rodriguez-Emmenegger C,Houska M,Brynda E,Michálek J

更新日期：2012-12-10 00:00:00

abstract：:Greener alternatives to synthetic polymers are constantly being investigated and sought after. Chitin is a natural polysaccharide that gives structural support to crustacean shells, insect exoskeletons, and fungal cell walls. Like cellulose, chitin resides in nanosized structural elements that can be isolated as nanof...

journal_title：Biomacromolecules

authors： Nawawi WMFBW,Jones M,Murphy RJ,Lee KY,Kontturi E,Bismarck A

更新日期：2020-01-13 00:00:00

abstract：:Celluloses from different origins were dissolved stepwise in N,N-dimethylacetamide/lithium chloride (9% v/w; DMAc/LiCl) with the aim to study the time course of the dissolution process, completeness of dissolution in the dissolved fractions, possible discrimination effects, and differences between the celluloses. Cell...

journal_title：Biomacromolecules

authors： Henniges U,Kostic M,Borgards A,Rosenau T,Potthast A

更新日期：2011-04-11 00:00:00

abstract：:A novel strategy for artificial regulation system of gene expression applying the specific molecular recognition between carbohydrate and lectin is proposed. Plasmid-lactose conjugates (pActin-lactose and pGFP-lactose) prepared via diazocoupling maintained the transcription activity with T7 RNA polymerase. Gel-shift a...

journal_title：Biomacromolecules

authors： Matsuura K,Hayashi K,Kobayashi K

更新日期：2005-09-01 00:00:00

abstract：:The water-soluble arabinoxylans from wheat flour (high, medium, and low viscosity samples) and rye flour (high viscosity sample) were characterized by (1)H NMR spectroscopy and HPSEC with refractive index, light scattering, and viscometric detectors. These cereal arabinoxylans have recently been used as model arabinox...

journal_title：Biomacromolecules

authors： Pitkänen L,Virkki L,Tenkanen M,Tuomainen P

更新日期：2009-07-13 00:00:00

abstract：:Poly(L-lactide)-based microspheres having cationic or anionic surfaces were prepared using polydepsipeptide-block-poly(L-lactide)s as surfactants. Polydepsipeptide-block-poly(L-lactide)s having amino or carboxylic acid groups on their side chains were synthesized through anionic ring-opening polymerizations of L-lacti...

journal_title：Biomacromolecules

authors： Ouchi T,Toyohara M,Arimura H,Ohya Y

更新日期：2002-09-01 00:00:00

abstract：:Although doxorubicin (Dox) has been widely used in the treatment of different types of cancer, its insufficient cellular uptake and intracellular release is still a limitation. Herein, we report an easy process for the preparation of redox-sensitive nanogels that were shown to be highly efficient in the intracellular ...

journal_title：Biomacromolecules

authors： Maciel D,Figueira P,Xiao S,Hu D,Shi X,Rodrigues J,Tomás H,Li Y

更新日期：2013-09-09 00:00:00

abstract：:This article reports on the successful preparation and characterization of cellulose nanocrystals (CNCs) surface-modified with polylactide (PLA) and poly(butylene succinate) (PBS) binary mixed homopolymer brushes. Their synthesis was designed as a three-step procedure combining polyester synthesis and surface-modifica...

journal_title：Biomacromolecules

authors： Mincheva R,Jasmani L,Josse T,Paint Y,Raquez JM,Gerbaux P,Eyley S,Thielemans W,Dubois P

更新日期：2016-09-12 00:00:00

abstract：:Herein we present a unique method of using dynamic cross-links, which are dynamic covalent bonding and ionic interaction, for the construction of injectable double-network (DN) hydrogels, with the objective of cell delivery for cartilage repair. Glycol chitosan and dibenzaldhyde capped poly(ethylene oxide) formed the ...

journal_title：Biomacromolecules

authors： Yan Y,Li M,Yang D,Wang Q,Liang F,Qu X,Qiu D,Yang Z

更新日期：2017-07-10 00:00:00

abstract：:We described the preparation of the glycol chitosan/heparin immobilized iron oxide nanoparticles (composite NPs) as a magnetic resonance imaging agent with a tumor-targeting characteristic. The iron oxide nanoseeds used clinically as a magnetic resonance imaging agent were immobilized into the glycol chitosan/heparin ...

journal_title：Biomacromolecules

authors： Yuk SH,Oh KS,Cho SH,Lee BS,Kim SY,Kwak BK,Kim K,Kwon IC

更新日期：2011-06-13 00:00:00

abstract：:Polypeptide-based formulations that undergo liquid to hydrogel transitions upon change in temperature have become desirable targets since they can be mixed with cells or injected into tissues as liquids, and subsequently transform into rigid scaffolds or depots. Such materials have been challenging to prepare using sy...

journal_title：Biomacromolecules

authors： Zhang S,Alvarez DJ,Sofroniew MV,Deming TJ

更新日期：2015-04-13 00:00:00

abstract：:Utilization of reversible interactions as sacrificial bonds in biopolymers is critical for the integral synthesis of mechanically superior biological materials. In this work, cellulose nanofibrils (CNFs) reinforced covalent polyacrylamide (PAAm) composite hydrogels are immersed into multivalent cation (Ca2+, Zn2+, Al3...

journal_title：Biomacromolecules

authors： Yang J,Xu F,Han CR

更新日期：2017-03-13 00:00:00