Relation between the degree of acetylation and the electrostatic properties of chitin and chitosan.

abstract：:A novel pH and temperature sensitive block copolymer was prepared by adding pH sensitive moiety to temperature sensitive block copolymer. This block copolymer solution showed a reversible sol-gel transition by a small pH change in the range of pH 7.4-8.0 and also by the temperature change in the region of body tempera...

journal_title：Biomacromolecules

authors： Shim WS,Yoo JS,Bae YH,Lee DS

更新日期：2005-11-01 00:00:00

abstract：:A revised crystal structure for mercerized cellulose based on high-resolution synchrotron X-ray data collected from ramie fibers is reported (space group P2(1), a = 8.10(3) A, b = 9.03(3) A, c = 10.31(5) A, gamma = 117.10(5) degrees; 751 reflections in 304 composite spots; theta < 21.11 degrees; lambda = 0.7208 A; LAL...

journal_title：Biomacromolecules

authors： Langan P,Nishiyama Y,Chanzy H

更新日期：2001-07-01 00:00:00

abstract：:Many biological processes are regulated by reversible binding events, with these interactions between macromolecules representing the core of dynamic chemistry. As such, any attempt to gain a better understanding of such interactions, which would pave the way to the extrapolation of natural designs to create new advan...

journal_title：Biomacromolecules

authors： Fernández-Colino A,Arias FJ,Alonso M,Rodríguez-Cabello JC

更新日期：2015-10-12 00:00:00

abstract：:Chitosan is a linear cationic biopolymer composed of glucosamine and N-acetyl-glucosamine that is only soluble in acidic aqueous solutions and precipitates when neutralized. However, it was recently discovered that chitosan dissolved in solutions containing glycerol phosphate was soluble at near neutral pH and produce...

journal_title：Biomacromolecules

authors： Filion D,Lavertu M,Buschmann MD

更新日期：2007-10-01 00:00:00

abstract：:Nucleic acids have been engineered to participate in a wide variety of tasks. Among them, the enzyme-free amplification modes, enzyme-free DNA circuits (EFDCs), and hybridization chain reactions (HCRs) have been widely applied in a series of studies of bioanalysis. We demonstrated here an ultrasensitive hairpin probe-...

journal_title：Biomacromolecules

authors： Liao Y,Fu Y,Wu Y,Huang R,Zhou X,Xing D

更新日期：2015-11-09 00:00:00

abstract：:The electrospinning of polymer melts can offer an advantage over solution electrospinning, in the development of layered tissue constructs for tissue engineering. Melt electrospinning does not require a solvent, of which many are cytotoxic in nature, and the use of nonwater soluble polymers allows the collection of fi...

journal_title：Biomacromolecules

authors： Dalton PD,Klinkhammer K,Salber J,Klee D,Möller M

更新日期：2006-03-01 00:00:00

abstract：:Combining molecular weight distribution (MWD) data for linear chains of debranched starch from capillary electrophoresis and from size exclusion chromatography (SEC) with detection by differential refractive index and by multi-angle laser light scattering has enabled Mark-Houwink parameters to be determined for linear...

journal_title：Biomacromolecules

authors： Castro JV,Ward RM,Gilbert RG,Fitzgerald MA

更新日期：2005-07-01 00:00:00

abstract：:A lamellar compound resulted from reaction of acrylic acid inside crystalline beta-chitin and the structure was investigated. Beta-chitin acts like a layered crystal, having stacked molecular sheets composed of parallel chains bound in one direction by intermolecular amide hydrogen bonding. Small guest molecules can b...

journal_title：Biomacromolecules

authors： Saito Y,Tomotake Y,Shida S

更新日期：2007-04-01 00:00:00

abstract：:In the present study, novel bionanocomposite materials with tunable properties were successfully prepared using a poly(lactic acid) (PLA) matrix and acetylated microfibrillated cellulose (MFC) as reinforcing agent. The acetylation of MFC was confirmed by FTIR and (13)C CP-MAS NMR spectroscopies. The grafting of acetyl...

journal_title：Biomacromolecules

authors： Tingaut P,Zimmermann T,Lopez-Suevos F

更新日期：2010-02-08 00:00:00

abstract：:Biological composites are typically based on an adhesive matrix that interlocks rigid reinforcing elements in fiber composite or brick-and-mortar assemblies. In nature, the adhesive matrix is often made up of proteins, which are also interesting model systems, as they are unique among polymers in that we know how to e...

journal_title：Biomacromolecules

authors： Malho JM,Ouellet-Plamondon C,Rüggeberg M,Laaksonen P,Ikkala O,Burgert I,Linder MB

更新日期：2015-01-12 00:00:00

abstract：:In this contribution, a hydrophobically modified polysaccharide derivative is synthesized in an eco-friendly solvent water by conjugation of benzylamine with the backbone of the biopolymer. Owing to the presence of aromatic moieties, the resulting water-soluble polysaccharide derivative self-assembles spontaneously an...

journal_title：Biomacromolecules

authors： Mohan T,Rathner R,Reishofer D,Koller M,Elschner T,Spirk S,Heinze T,Stana-Kleinschek K,Kargl R

更新日期：2015-08-10 00:00:00

abstract：:Positive strand RNA viruses replicate in specialized niches called membranous web within the cytoplasm of host cells. These virus replication organelles sequester viral proteins, RNA, and a variety of host factors within a fluid, amorphous matrix of clusters of endoplasmic reticulum (ER) derived vesicles. They are tho...

journal_title：Biomacromolecules

authors： Ho JCS,Steininger C,Hiew SH,Kim MC,Reimhult E,Miserez A,Cho N,Parikh AN,Liedberg B

更新日期：2019-04-08 00:00:00

abstract：:We report the synthesis of poly(methacrylic acid)-co-(oleyl methacrylate) with three different amounts of oleyl methacrylate and compare the ability of these polymers with that of poly(methacrylic acid)-co-(cholesteryl methacrylate) (PMA(c)) to noncovalently anchor liposomes to polymer layers. We subsequently assemble...

journal_title：Biomacromolecules

authors： Hosta-Rigau L,Chandrawati R,Saveriades E,Odermatt PD,Postma A,Ercole F,Breheney K,Wark KL,Städler B,Caruso F

更新日期：2010-12-13 00:00:00

abstract：:Polyamines are essential molecules supporting the structure, conformation, and function of nucleic acids and proteins. We studied stereoisomers of alpha,alpha'-dimethylated spermine [(R,R)-Me(2)Spm, (S,S)-Me(2)Spm, (R,S)-Me(2)Spm] for their ability to provoke DNA condensation and protect DNA from damage. (R,R)- and (R...

journal_title：Biomacromolecules

authors： Nayvelt I,Hyvönen MT,Alhonen L,Pandya I,Thomas T,Khomutov AR,Vepsäläinen J,Patel R,Keinänen TA,Thomas TJ

更新日期：2010-01-11 00:00:00

abstract：:A comprehensive knowledge of the in vivo fate of polymers is essential for their potential application in humans. In this study, the body distribution, accumulation, and elimination processes of intraperitoneally (ip) administered poly(vinyl alcohol) (PVA) in mice were investigated in detail. Two derivatives of PVA (1...

journal_title：Biomacromolecules

authors： Schädlich A,Naolou T,Amado E,Schöps R,Kressler J,Mäder K

更新日期：2011-10-10 00:00:00

abstract：:Cancer cells have a large amount of ROS (reactive oxygen species) because of disturbed ROS homeostasis. Cancer cells therefore undertake redox adaptation to drive proliferation in tumor environments and even survive during anticancer treatment by upregulating endogenous antioxidants. As one of antioxidant defense syst...

journal_title：Biomacromolecules

authors： Noh J,Jung E,Lee J,Hyun H,Hong S,Lee D

更新日期：2019-02-11 00:00:00

abstract：:The effect of solution pH during layer-by-layer assembly of polyelectrolyte multilayer (PEM) coatings on properties relevant to orthopedic implant success was investigated. Bone morphogenetic protein 2 (BMP-2), a potent osteoconductive growth factor, was adsorbed onto the surface of anodized titanium, and PEM coatings...

journal_title：Biomacromolecules

authors： Salvi C,Lyu X,Peterson AM

更新日期：2016-06-13 00:00:00

abstract：:Structures of three pectic arabinogalactans, one from Vernonia kotschyana (Vk2a) and two from Cochlospermum tinctorium (Ct50A1 and Ct50A2), and their complement fixation and induction of B cell proliferation in vitro were compared. The polysaccharide Vk2a expressed potent biological activity in both assays compared wi...

journal_title：Biomacromolecules

authors： Nergard CS,Kiyohara H,Reynolds JC,Thomas-Oates JE,Matsumoto T,Yamada H,Patel T,Petersen D,Michaelsen TE,Diallo D,Paulsen BS

更新日期：2006-01-01 00:00:00

abstract：:Cellular model systems are essential platforms used across multiple research fields for exploring the fundaments of biology and biochemistry. Here, we present giant plasma membrane vesicles (GPMVs) as a platform of cell-like compartments that will facilitate the study of particles within a biorelevant environment and ...

journal_title：Biomacromolecules

authors： Zartner L,Garni M,Craciun I,Einfalt T,Palivan CG

更新日期：2021-01-11 00:00:00

abstract：:The mechanical rigidity and degradation rate of hydrogels utilized as cell transplantation vehicles have been regarded as critical factors in new tissue formation. However, conventional approaches to accelerate the degradation rate of gels deteriorate their function as a mechanical support in parallel. We hypothesized...

journal_title：Biomacromolecules

authors： Kong HJ,Kaigler D,Kim K,Mooney DJ

更新日期：2004-09-01 00:00:00

abstract：:Light-harvesting antenna core (LH1-RC) complexes isolated from Rhodoseudomonas palustris were self-assembled on a gold electrode modified with self-assembled monolayers (SAMs) of the alkanethiols NH2(CH2)nSH, n = 2, 6, 8, 11; HOOC(CH2)7SH; and CH3(CH2)7SH, respectively. Adsorption of the LH1-RC complexes on the SAMs d...

journal_title：Biomacromolecules

authors： Kondo M,Nakamura Y,Fujii K,Nagata M,Suemori Y,Dewa T,Iida K,Gardiner AT,Cogdell RJ,Nango M

更新日期：2007-08-01 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：:Copolymers of (R)-3-hydroxybutyric acid (HB) and epsilon-caprolactone (CL) with a composition ranging from 28 to 81 mol % of HB were synthesized by transesterification of the corresponding homopolymers in solution in the presence of 4-toluenesulfonic acid. The copolyesters were characterized with regard to their molec...

journal_title：Biomacromolecules

authors： Impallomeni G,Giuffrida M,Barbuzzi T,Musumarra G,Ballistreri A

更新日期：2002-07-01 00:00:00

abstract：:Native cellulose consists of a set of parallel chains composed of glucose. Most of the time, these chains are highly ordered and form a structure that is known as a microfibril. On the other hand, highly crystalline forms of cellulose are more difficult to process and often are unpredictable in their behavior. If an o...

journal_title：Biomacromolecules

authors： Kondo T,Togawa E,Brown RM Jr

更新日期：2001-01-01 00:00:00

abstract：:Infectious diseases remain one of the leading causes of death worldwide despite the tremendous effort devoted to the design and development of antimicrobial agents. However, the decrease in the effectiveness of some antibiotics is often associated with the development of drug resistance by pathogen. This leads to an u...

journal_title：Biomacromolecules

authors： Nguyen D,Nguyen TK,Rice SA,Boyer C

更新日期：2015-09-14 00:00:00

abstract：:Despite great potential, the delivery of genetic materials into cells or tissues of interest remains challenging owing to their susceptibility to nuclease degradation, lack of permeability to the cell membrane, and short in vivo half-life, which severely restrict their widespread use in therapeutics. To surmount these...

journal_title：Biomacromolecules

authors： Le TMD,Duong HTT,Thambi T,Giang Phan VH,Jeong JH,Lee DS

更新日期：2018-08-13 00:00:00

abstract：:Antibacterial nanodevices could bring coatings of plastic materials and wound dressings a big step forward if the release of the antibacterial agents could be triggered by the presence of the bacteria themselves. Here, we show that novel hyaluronic acid (HA)-based nanocapsules containing the antimicrobial agent polyhe...

journal_title：Biomacromolecules

authors： Baier G,Cavallaro A,Vasilev K,Mailänder V,Musyanovych A,Landfester K

更新日期：2013-04-08 00:00:00

abstract：:Superparamagnetic iron oxide nanoparticles are widely used as nanoprobes for magnetic resonance imaging (MRI). Water-soluble iron oxide nanoparticles were synthesized by coating iron oxide nanoparticles with a hydrophilic, biocompatible, biodegradable poly(amino acid) derivative, poly(2-hydroxyethyl aspartamide) graft...

journal_title：Biomacromolecules

authors： Yang HM,Park CW,Woo MA,Kim MI,Jo YM,Park HG,Kim JD

更新日期：2010-11-08 00:00:00

abstract：:The synthesis of poly(methyl methacrylate-co-methacryloxysuccinimide-graft-poly(ethylene glycol)) (PMMA-co-PMASI-g-PEG) via living free radical polymerization provides a convenient route to well-defined amphiphilic graft copolymers having a controllable number of reactive functional groups, variable length PEG grafts,...

journal_title：Biomacromolecules

authors： Pressly ED,Rossin R,Hagooly A,Fukukawa K,Messmore BW,Welch MJ,Wooley KL,Lamm MS,Hule RA,Pochan DJ,Hawker CJ

更新日期：2007-10-01 00:00:00

abstract：:Bone-marrow-derived mesenchymal stem cells (BMSCs) possess vast potential for tissue engineering and regenerative medicine. In this study, an injectable hydrogel comprising poly(l-glutamic acid)-graft-tyramine (PLG-g-TA) with tunable microenvironment was developed via enzyme-catalyzed cross-linking and used as an arti...

journal_title：Biomacromolecules

authors： Ren K,Cui H,Xu Q,He C,Li G,Chen X

更新日期：2016-12-12 00:00:00