Reversibly cross-linked polyplexes enable cancer-targeted gene delivery via self-promoted DNA release and self-diminished toxicity.

abstract：:The formation of protein-polymer complexes was studied in an aqueous system using dynamic light scattering (DLS) and static light scattering (SLS) as the main experimental tools. Human serum albumin (HSA) was used as a protein and complexed with four representative water-soluble polymers: poly(N-isopropylacrylamide) (...

journal_title：Biomacromolecules

authors： Matsudo T,Ogawa K,Kokufuta E

更新日期：2003-11-01 00:00:00

abstract：:This paper reports the synthesis of hyaluronan (HA) and its derivatives via the hyaluronidase-catalyzed polymerization of 2-substituted oxazoline derivative monomers designed as "transition-state analogue substrates". Polymerization of 2-methyl oxazoline monomer from N-acetylhyalobiuronate (GlcAbeta(1-->3)GlcNAc) effe...

journal_title：Biomacromolecules

authors： Ochiai H,Ohmae M,Mori T,Kobayashi S

更新日期：2005-03-01 00:00:00

abstract：:Although composed simply of glucose polymers, the starch granule is a complex, semicrystalline structure. Much of this complexity arises from the fact that the two primary enzymes of synthesis-starch synthase and starch-branching enzyme-exist as multiple isoforms. Each form has distinct properties and plays a unique r...

journal_title：Biomacromolecules

authors： Smith AM

更新日期：2001-07-01 00:00:00

abstract：:Two linear alpha-(1,4)-D-glucans substrates, of degrees of polymerization DP approximately 150 and 6000, were exposed to maize starch-branching enzyme IIa (mSBEIIa) in vitro. The resulting branched alpha-glucans and their constituent chains (obtained by debranching) were analyzed by nuclear magnetic resonance (NMR) an...

journal_title：Biomacromolecules

authors： Hernández JM,Gaborieau M,Castignolles P,Gidley MJ,Myers AM,Gilbert RG

更新日期：2008-03-01 00:00:00

abstract：:The coefficient of thermal expansion (CTE) of cellulose nanocrystal (CNC) films was characterized using novel experimental techniques complemented by molecular simulations. The characteristic birefringence exhibited by CNC films was utilized to calculate the in-plane CTE of self-organized and shear-oriented self-stand...

journal_title：Biomacromolecules

authors： Diaz JA,Wu X,Martini A,Youngblood JP,Moon RJ

更新日期：2013-08-12 00:00:00

abstract：:The extracellular matrix is an environment rich with structural, mechanical, and molecular signals that can impact cell biology. Traditional approaches in hydrogel biomaterial design often rely on modifying the concentration of cross-linking groups to adjust mechanical properties. However, this strategy provides limit...

journal_title：Biomacromolecules

authors： Pedron S,Pritchard AM,Vincil GA,Andrade B,Zimmerman SC,Harley BA

更新日期：2017-04-10 00:00:00

abstract：:Tissue engineering approaches for peripheral nerve regeneration employ biodegradable scaffolds coupled with growth factors for improved performance in regeneration of large nerve injuries. Electrospun nanofibers provide a versatile platform for fabrication of scaffolds with extracellular matrix like architecture and i...

journal_title：Biomacromolecules

authors： Valmikinathan CM,Defroda S,Yu X

更新日期：2009-05-11 00:00:00

abstract：:Peptide RATEA16 spontaneously self-assembled into higher-order nanofiber hydrogels with extremely high water content (>99.5% (wt/vol)) under physiological condition. The hydrogels could undergo pH-reversible transitions from viscous solution to elastic hydrogel and to precipitate. The supramolecular self-assembly and ...

journal_title：Biomacromolecules

authors： Zhao Y,Yokoi H,Tanaka M,Kinoshita T,Tan T

更新日期：2008-06-01 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：:To broaden the application scope of lactic acid polymers, a new miniemulsion of poly(alkyl methacrylate-graft-lactic acid)s has been developed. The graft copolymer synthesis was based on a poly(lactic acid) macromonomer having a methacryloyl polymerizable group. The macromonomer and a comonomer of n-butyl methacrylate...

journal_title：Biomacromolecules

authors： Ishimoto K,Arimoto M,Ohara H,Kobayashi S,Ishii M,Morita K,Yamashita H,Yabuuchi N

更新日期：2009-10-12 00:00:00

abstract：:We report structural and dynamical aspects of DNAs from various sources including synthetic oligonucleotides in bulk buffer and as a complex with histone1 (H1). High-resolution transmission electron microscopic (HRTEM) studies reveal the structural change of the DNAs upon complexation with H1 leading to formation of c...

journal_title：Biomacromolecules

authors： Sarkar R,Pal SK

更新日期：2007-11-01 00:00:00

abstract：:In this work we describe the application of amphiphilic N-(2-hydroxypropyl)methacrylamide (HPMA)-based copolymers as polymeric surfactants in miniemulsion techniques. HPMA-based copolymers with different ratios of HPMA (hydrophilic) to laurylmethacrylate (LMA; hydrophobic) units were synthesized by RAFT polymerization...

journal_title：Biomacromolecules

authors： Kelsch A,Tomcin S,Rausch K,Barz M,Mailänder V,Schmidt M,Landfester K,Zentel R

更新日期：2012-12-10 00:00:00

abstract：:Synthesis of novel zwitterionic block copolypeptides, poly(N-isopropylacrylamide)-block-poly(L-glutamic acid-co-L-lysine) [PNiPAM(n)(PLG(x)-co-PLLys(y))m , where n is the number-average degree of polymerization (DP(n)) of PNiPAM block, x and y are the mole fraction of glutamic acid and lysine residues, respectively, a...

journal_title：Biomacromolecules

authors： Li J,Wang T,Wu D,Zhang X,Yan J,Du S,Guo Y,Wang J,Zhang A

更新日期：2008-10-01 00:00:00

abstract：:A successful strategy for the immobilization of rennet from Mucor miehei has been developed. The strategy is based on the immobilization of the enzyme, via their sugar chains at high ionic strength on aminated supports having primary amino groups with a very low pK value. The rennet was covalently immobilized via suga...

journal_title：Biomacromolecules

authors： Pessela BC,Torres R,Fuentes M,Mateo C,Fernandez-Lafuente R,Guisán JM

更新日期：2004-09-01 00:00:00

abstract：:Natural silk spinning offers several advantages over the synthetic fiber spinning, although the underlying mechanisms of this process are yet to be fully elucidated. Silkworm silks, specifically B. mori, comprise two main proteins: fibroin, which forms the fiber, and sericin, a coextruded coating that acts as a matrix...

journal_title：Biomacromolecules

authors： Kwak HW,Ju JE,Shin M,Holland C,Lee KH

更新日期：2017-08-14 00:00:00

abstract：:This paper describes the synthesis and evaluation of a series of multifunctional poly-l-glutamic acid derivatives that can be used as vectors for gene delivery. They readily form polyelectrolyte complexes with DNA, resulting in a reduced surface charge and size of the DNA. The formation of a polymer-DNA complex and th...

journal_title：Biomacromolecules

authors： Dubruel P,Dekie L,Schacht E

更新日期：2003-09-01 00:00:00

abstract：:Self-assembly in aqueous solution of two oppositely charged globular proteins, hen egg white lysozyme (LYS) and bovine calcium-depleted α-lactalbumin (apo α-LA), was investigated at pH 7.5. The aggregation rate of equimolar mixtures of the two proteins was determined using static and dynamic light scattering as a func...

journal_title：Biomacromolecules

authors： Salvatore D,Croguennec T,Bouhallab S,Forge V,Nicolai T

更新日期：2011-05-09 00:00:00

abstract：:Coniferyl alcohol was polymerized in pectin solution in order to mimic the lignification that is the final step of biosynthesis of plant cell wall. Dehydrogenated polymers (DHP = coniferyl alcohol polymers = synthetic lignin) interact with pectin to form hydrophobic clusters as monitored by pyrene fluorescence spectro...

journal_title：Biomacromolecules

authors： Lairez D,Cathala B,Monties B,Bedos-Belval F,Duran H,Gorrichon L

更新日期：2005-03-01 00:00:00

abstract：:The ability to direct neurite growth into a close proximity of stimulating elements of a neural prosthesis, such as a retinal or cochlear implant (CI), may enhance device performance and overcome current spatial signal resolution barriers. In this work, spiral ganglion neurons (SGNs), which are the target neurons to b...

journal_title：Biomacromolecules

authors： Tuft BW,Zhang L,Xu L,Hangartner A,Leigh B,Hansen MR,Guymon CA

更新日期：2014-10-13 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：:Spider dragline silk with its superlative tensile properties provides an ideal system to study the relationship between morphology and mechanical properties of a structural protein. Accordingly, we synthesized two hybrid multiblock copolymers by condensing poly(alanine) [(Ala)(5)] blocks of the structural proteins (sp...

journal_title：Biomacromolecules

authors： Zhou C,Leng B,Yao J,Qian J,Chen X,Zhou P,Knight DP,Shao Z

更新日期：2006-08-01 00:00:00

abstract：:In this study, we demonstrate for the first time the fabrication of carboxylated chitosan nanocrystals (ChsNC) with high degree of deacetylation (DDA) at >80% and narrow size distribution. We also studied its application as a sustainable support material for metal-based catalysts. Carboxylated chitin nanocrystals (ChN...

journal_title：Biomacromolecules

authors： Jin T,Kurdyla D,Hrapovic S,Leung ACW,Régnier S,Liu Y,Moores A,Lam E

更新日期：2020-06-08 00:00:00

abstract：:In this paper, the contribution of nonpeptido small molecular linkers to the properties of sequence-defined peptidocopolymers was investigated. We synthesized four novel bioinspired peptidocopolymers (P1-P4) based on elastin motif pentapeptide (Gly-Pro-Gly-Gly-Ala) by step growth polymerization. Small molecular linker...

journal_title：Biomacromolecules

authors： Liu Y,Kang Y,Wang J,Wang Z,Chen G,Jiang M

更新日期：2015-12-14 00:00:00

abstract：:Cross-linked homopolymers and copolymers of 2-hydroxyethyl methacrylate, HEMA, and ethylene glycol methacrylate phosphate, MOEP, have been synthesized, and the diffusion of water into these systems has been investigated. Only polymers with 0-20 mol % MOEP exhibited ideal swelling behavior as extensive fracturing occur...

journal_title：Biomacromolecules

authors： George KA,Wentrup-Byrne E,Hill DJ,Whittaker AK

更新日期：2004-07-01 00:00:00

abstract：:Electrospinning is a simple and versatile technique of producing polymeric fibers ranging from submicron to micron in diameter. Incorporation of bioactive agents into the fibers could make a biofunctional tissue engineering scaffold. In this study, we investigated the feasibility of encapsulating human beta-nerve grow...

journal_title：Biomacromolecules

authors： Chew SY,Wen J,Yim EK,Leong KW

更新日期：2005-07-01 00:00:00

abstract：:Photodynamic therapy (PDT) has attracted widespread attention in recent years as a noninvasive and highly selective approach for cancer treatment. We have previously reported a significant increase in the 90-day complete response rate when tumor-bearing mice are treated with the epidermal growth factor receptor (EGFR)...

journal_title：Biomacromolecules

authors： Yan L,Miller J,Yuan M,Liu JF,Busch TM,Tsourkas A,Cheng Z

更新日期：2017-06-12 00:00:00

abstract：:Herein, we developed a new gene delivery vector by grafting a betaine monomer (N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate, DMAAPS) onto 25 KDa polyethylenimine (PEI 25K) via the Michael addition reaction. The graft ratio for betaine on PEI polymer could be readily controlled, and in this study three PEI-...

journal_title：Biomacromolecules

authors： Sun J,Zeng F,Jian H,Wu S

更新日期：2013-03-11 00:00:00

abstract：:Electrospinning for the formation of nanoscale diameter fibers has been explored for high-performance filters and biomaterial scaffolds for vascular grafts or wound dressings. Fibers with nanoscale diameters provide benefits due to high surface area. In the present study we explore electrospinning for protein-based bi...

journal_title：Biomacromolecules

authors： Jin HJ,Fridrikh SV,Rutledge GC,Kaplan DL

更新日期：2002-11-01 00:00:00

abstract：:This study is devoted to developing amphiphilic block polymers based on phenylborate ester, which can self-assemble to form nanoparticles, as a glucose-sensitive drug carrier. Poly(ethylene glycol)-block-poly[(2-phenylboronic esters-1,3-dioxane-5-ethyl) methylacrylate] (MPEG5000-block-PBDEMA) was fabricated with MPEG5...

journal_title：Biomacromolecules

authors： Yao Y,Zhao L,Yang J,Yang J

更新日期：2012-06-11 00:00:00

abstract：:In this paper we report on protein refolding by means of a liquid-liquid transfer technique using a calixarene. We have found that a calix[6]areneacetic acid derivative forms a supramolecular complex with urea-denatured cytochrome c at the oil-water interface, which enables quantitative transfer of the protein from an...

journal_title：Biomacromolecules

authors： Shimojo K,Oshima T,Naganawa H,Goto M

更新日期：2007-10-01 00:00:00