Understanding the mechanism of action of poly(amidoamine)s as endosomolytic polymers: correlation of physicochemical and biological properties.

abstract：:Stereocomplexation of poly(L-lactide) (PLLA) with star shaped D-lactic acid (D-LA) oligomers with different architectures and end-groups clearly altered the degradation rate and affected the degradation product patterns. Altogether, nine materials were studied: standard PLLA and eight blends of PLLA with either 30 or ...

journal_title：Biomacromolecules

authors： Andersson SR,Hakkarainen M,Inkinen S,Södergård A,Albertsson AC

更新日期：2012-04-09 00:00:00

abstract：:Reductively degradable biopolymers have emerged as a unique class of smart biomedical materials. Here, a functional coupling agent, cystamine diisocyanate (CDI), was designed to offer a facile access to reductively degradable biopolymers via polycondensation with various diols. CDI was readily obtained with a decent y...

journal_title：Biomacromolecules

authors： Wang X,Zhang J,Cheng R,Meng F,Deng C,Zhong Z

更新日期：2016-03-14 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：:Surface-immobilized liposome layers are of interest for various potential applications such as localized drug delivery, but their characterization is challenging. We have employed an AFM method and fluorescent dye release to analyze anchored liposomes. In addition, we studied whether the liposomes are surface-bound so...

journal_title：Biomacromolecules

authors： Vermette P,Griesser HJ,Kambouris P,Meagher L

更新日期：2004-07-01 00:00:00

abstract：:Biodegradable polyrotaxanes (PRXs) were synthesized from bis-amino-terminated poly(L-lactide) (PLLA) and alpha-cyclodextrin (alpha-CD), combined with capping by bulky end groups at the amino-termini of PLLA through enzymatically cleavable peptide linkages. The crystalline structure of the PRXs in the solid state was i...

journal_title：Biomacromolecules

authors： Ohya Y,Takamido S,Nagahama K,Ouchi T,Katoono R,Yui N

更新日期：2009-08-10 00:00:00

abstract：:Trimethylsilylation of chitin was studied in detail to establish a reliable method, and the properties of the resulting product were elucidated. Chitin was successfully trimethylsilylated with a mixture of hexamethyldisilazane and trimethylsilyl chloride in pyridine. Compared to alpha-chitin, beta-chitin was much more...

journal_title：Biomacromolecules

authors： Kurita K,Sugita K,Kodaira N,Hirakawa M,Yang J

更新日期：2005-05-01 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：: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：:We have investigated the thermodynamic and dynamic behavior of multistranded β-lactoglobulin protein fibrils in water, by combining static, dynamic, and depolarized dynamic light scattering (SLS, DLS, DDLS), small angle neutron scattering (SANS), rheology, and cryogenic transmission electron microscopy (cryo-TEM). We ...

journal_title：Biomacromolecules

authors： Bolisetty S,Harnau L,Jung JM,Mezzenga R

更新日期：2012-10-08 00:00:00

abstract：:Novel polymer composites reinforced with an oriented cellulose nanocrystal (CNC) assembly were prepared from suspensions of CNC in aqueous 2-hydroxyethyl methacrylate (HEMA) via magnetic field application to the suspensions followed by polymerization treatment. The starting suspensions used at ∼6 wt % CNC separated in...

journal_title：Biomacromolecules

authors： Tatsumi M,Kimura F,Kimura T,Teramoto Y,Nishio Y

更新日期：2014-12-08 00:00:00

abstract：:Dragline silk from orb-weaving spiders is a copolymer of two large proteins, major ampullate spidroin 1 (MaSp1) and 2 (MaSp2). The ratio of these proteins is known to have a large variation across different species of orb-weaving spiders. NMR results from gland material of two different species of spiders, N. clavipe...

journal_title：Biomacromolecules

authors： An B,Jenkins JE,Sampath S,Holland GP,Hinman M,Yarger JL,Lewis R

更新日期：2012-12-10 00:00:00

abstract：:Single-walled carbon nanotube (SWNT) is a pseudo-one-dimensional nanostructure capable of carrying/displaying a large number of bioactive molecules and species in aqueous solution. In this work, a series of dendritic beta-D-galactopyranosides and alpha-D-mannopyranosides with a terminal amino group were synthesized an...

journal_title：Biomacromolecules

authors： Gu L,Luo PG,Wang H,Meziani MJ,Lin Y,Veca LM,Cao L,Lu F,Wang X,Quinn RA,Wang W,Zhang P,Lacher S,Sun YP

更新日期：2008-09-01 00:00:00

abstract：:Spiders spin their silk from an aqueous solution to a solid fiber in ambient conditions. However, to date, the assembly mechanism in the spider silk gland has not been satisfactorily explained. In this paper, we use molecular dynamics simulations to model Nephila clavipes MaSp1 dragline silk formation under shear flow...

journal_title：Biomacromolecules

authors： Giesa T,Perry CC,Buehler MJ

更新日期：2016-02-08 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：:Wheat arabinoxylan was treated with two α-arabinofuranosidases exhibiting different mode of action to create three different polymeric substrates. These three substrate preparations were characterized by xylopyranose backbone sugars that are (1) singly substituted by arabinose at C2 or C3, (2) doubly substituted by ar...

journal_title：Biomacromolecules

authors： Littunen K,Mai-Gisondi G,Seppälä J,Master ER

更新日期：2017-05-08 00:00:00

abstract：:Electrospun poly(glycolide-co-lactide) (PLA10GA90, LA/GA ratio 10/90) biodegradable nanofiber membranes possessed very high surface area to volume ratios and were completely noncrystalline with a relatively lowered glass transition temperature. These characteristics led to very different structure, morphology, and pro...

journal_title：Biomacromolecules

authors： Zong X,Ran S,Kim KS,Fang D,Hsiao BS,Chu B

更新日期：2003-03-01 00:00:00

abstract：:Cationic spherical polyelectrolyte brushes (SPBs) were synthesized by photoemulsion polymerization, consisting of a polystyrene core with a diameter around 80 nm and a poly(2-aminoethylmethacrylate hydrochloride) (PAEMH) shell with a thickness from 10 to 50 nm densely grafted on the core surface. The binding of variou...

journal_title：Biomacromolecules

authors： Wang S,Chen K,Li L,Guo X

更新日期：2013-03-11 00:00:00

abstract：:High molecular weight trimethylene carbonate (TMC) and epsilon-caprolactone (CL) (co)polymers were synthesized. Melt pressed (co)polymer films were cross-linked by gamma irradiation (25 kGy or 50 kGy) in vacuum, yielding gel fractions of up to 70%. The effects of copolymer composition and irradiation dose on the cytot...

journal_title：Biomacromolecules

authors： Bat E,Plantinga JA,Harmsen MC,van Luyn MJ,Zhang Z,Grijpma DW,Feijen J

更新日期：2008-11-01 00:00:00

abstract：:The single-coat protein (CP) of bacteriophage Qβ self-assembles into T = 3 icosahedral virus-like particles (VLPs), of interest for a wide range of applications. These VLPs are very stable, but identification of the specific molecular determinants of this stability is lacking. To investigate these determinants along w...

journal_title：Biomacromolecules

authors： Fiedler JD,Higginson C,Hovlid ML,Kislukhin AA,Castillejos A,Manzenrieder F,Campbell MG,Voss NR,Potter CS,Carragher B,Finn MG

更新日期：2012-08-13 00:00:00

abstract：:Plastics ending up in soil or landfill environment will eventually be degraded. At the same time a slow migration of additives from the plastics will occur. The additives and the degradation products of these and the polymer are potential compounds for bioconversion. To predict the rate of the migration of antioxidant...

journal_title：Biomacromolecules

authors： Haider N,Karlsson S

更新日期：2000-10-01 00:00:00

abstract：:The mucilaginous viscin tissue within mistletoe berries possesses an extraordinary ability to be rapidly processed under ambient conditions into stiff cellulosic fibers (>14 GPa) through simple mechanical drawing. This rapid and extreme transformation process is hydration-dependent and involves an astonishing >200-fol...

journal_title：Biomacromolecules

authors： Horbelt N,Eder M,Bertinetti L,Fratzl P,Harrington MJ

更新日期：2019-08-12 00:00:00

abstract：:The Bacillus subtilis protease Proleather FG-F catalyzed the transesterification of inulin with vinyl acrylate (VA) in dimethylformamide (DMF). The reaction conversion for different VA concentrations was greater than 57% after 96 h at 50 degrees C. The degree of substitution (DS, defined as the amount of acrylate grou...

journal_title：Biomacromolecules

authors： Ferreira L,Carvalho R,Gil MH,Dordick JS

更新日期：2002-03-01 00:00:00

abstract：:Neutron reflectometry was used to investigate effects of calcium ions on the interfacial behavior of beta-casein at the silicon oxide-aqueous solution interface. The structural characteristics of the adsorbed layer were determined from reflectivity curves fitted to three- and two-layer optical models. The results show...

journal_title：Biomacromolecules

authors： Follows D,Holt C,Nylander T,Thomas RK,Tiberg F

更新日期：2004-03-01 00:00:00

abstract：:Hydrogels are supramolecular assemblies with both solute transport properties like liquids and mechanical properties like elastomers. To date, every type of biomolecules except ribonucleic acid (RNA), is capable of forming a hydrogel. Here, we report an RNA that forms a hydrogel by self-assembly. This RNA is originall...

journal_title：Biomacromolecules

authors： Huang Z,Kangovi GN,Wen W,Lee S,Niu L

更新日期：2017-07-10 00:00:00

abstract：:Neutral cellulose nanocrystals dispersed in water were shown in a previous work to stabilize oil/water interfaces and produce Pickering emulsions with outstanding stability, whereas sulfated nanocrystals obtained from cotton did not show interfacial properties. To develop a better understanding of the stabilization me...

journal_title：Biomacromolecules

authors： Kalashnikova I,Bizot H,Cathala B,Capron I

更新日期：2012-01-09 00:00:00

abstract：:Self-assembled hydrogen-bonded networks of the polysaccharide pectin, a mechanically functional component of plant cell walls, have been of recent interest as biomimetic exemplars of physical gels, and the microrheological and strain-stiffening behaviors have been previously investigated. Despite this detailed rheolog...

journal_title：Biomacromolecules

authors： Mansel BW,Chu CY,Leis A,Hemar Y,Chen HL,Lundin L,Williams MA

更新日期：2015-10-12 00:00:00

abstract：:Atomic force microscopy (AFM) was used to assess a new chimeric protein consisting of a fusion protein of the consensus repeat for Nephila clavipes spider dragline protein and bone sialoprotein (6mer+BSP). The elastic modulus of this protein in film form was assessed through force curves, and film surface roughness wa...

journal_title：Biomacromolecules

authors： Gomes S,Numata K,Leonor IB,Mano JF,Reis RL,Kaplan DL

更新日期：2011-05-09 00:00:00

abstract：:The development of sustainable materials by employing natural and nontoxic resources has been attracting much attention over the previous years. In this work, we discuss for the first time the chemical combination between resorcinol diglycidyl ether (RDGE), an aromatic biobased thermosetting monomer, and polyhydroxybu...

journal_title：Biomacromolecules

authors： Cantarutti C,Dinu R,Mija A

更新日期：2020-08-10 00:00:00

abstract：:Two poly(amido-amine)s (oligoPAM and oligoNER) containing bis-phosphonate residues were obtained by a Michael-type polyaddition of pamidronate and neridronate to 1,4-bis(acryloyl)piperazine. The SEC (size-exclusion chromatography) and the MALDI-TOF (matrix assisted laser desorption ionization) analyses were consistent...

journal_title：Biomacromolecules

authors： Casolaro M,Casolaro I,Spreafico A,Capperucci C,Frediani B,Marcolongo R,Margiotta N,Ostuni R,Mendichi R,Samperi F,Ishii T,Ito Y

更新日期：2006-12-01 00:00:00

abstract：:The long-term stability and success of orthopedic implants depend on the osseointegration process, which is strongly influenced by the biomaterial surface. A promising approach to enhance implant integration involves the modification of the surface of the implant by means of polymers that mimic the natural components ...

journal_title：Biomacromolecules

authors： Travan A,Marsich E,Donati I,Foulc MP,Moritz N,Aro HT,Paoletti S

更新日期：2012-05-14 00:00:00