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1.985 Aktuelle Fachpublikationen zum Thema Addition

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Polyion Complex Micelle Based on Albumin–Polymer Conjugates: Multifunctional Oligonucleotide Transfection Vectors for Anticancer Chemotherapeutics

16.10.2014 | Yanyan Jiang; Hongxu Lu; Yee Yee Khine; Aydan Dag; Martina H. Stenzel, Biomacromolecules, 2014

Novel biocompatible polyion complex micelles, containing bovine serum albumin (BSA), polymer, and oligonucleotide, were synthesized as a generation of vectors for the gene transfection. Maleimide-terminated poly((N,N-dimethyl amino) ethyl methacrylate) (PDMAEMA) was prepared via reversible ...

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Mold-Templated Inorganic–Organic Hybrid Supraparticles for Codelivery of Drugs

16.10.2014 | James W. Maina; Jiwei Cui; Mattias Björnmalm; Andrew K. Wise; Robert K. Shepherd; Frank Caruso, Biomacromolecules, 2014

This paper reports a facile and robust mold-templated technique for the assembly of mesoporous silica (MS) supraparticles and demonstrates their potential as vehicles for codelivery of brain-derived neurotrophic factor (BDNF) and dexamethasone (DEX). The MS supraparticles are assembled using ...

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Thermal Conductivity in Nanostructured Films: From Single Cellulose Nanocrystals to Bulk Films

16.10.2014 | Jairo A. Diaz; Zhijiang Ye; Xiawa Wu; Arden L. Moore; Robert J. Moon; Ashlie Martini; Dylan J. Boday; Jeffrey P. You ..., Biomacromolecules, 2014

We achieved a multiscale description of the thermal conductivity of cellulose nanocrystals (CNCs) from single CNCs (∼0.72–5.7 W m–1 K–1) to their organized nanostructured films (∼0.22–0.53 W m–1 K–1) using experimental evidence and molecular dynamics (MD) simulation. The ratio of the approximate ...

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Multivalent Dendrimer Vectors with DNA Intercalation Motifs for Gene Delivery

15.10.2014 | Pamela T. Wong; Kenny Tang; Alexa Coulter; Shengzhuang Tang; James R. Baker, Jr.; Seok Ki Choi, Biomacromolecules, 2014

Poly(amido amine) (PAMAM) dendrimers constitute an important class of nonviral, cationic vectors in gene delivery. Here we report on a new concept for dendrimer vector design based on the incorporation of dual binding motifs: DNA intercalation, and receptor recognition for targeted delivery. We ...

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Hierarchical Assembly of Branched Supramolecular Polymers from (Cyclic Peptide)–Polymer Conjugates

14.10.2014 | Ming Liang Koh; Katrina A. Jolliffe; Sébastien Perrier, Biomacromolecules, 2014

We report the synthesis and assembly of (N-methylated cyclic peptide)–polymer conjugates for which the cyclic peptide is attached to either the α- or both α- and ω- end groups of a polymer. A combination of chromatographic, spectroscopic, and scattering techniques reveals that the assembly of the ...

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Poly(ethylene oxide)-b-poly(3-sulfopropyl methacrylate) Block Copolymers for Calcium Phosphate Mineralization and Biofilm Inhibition

13.10.2014 | Tobias Mai; Ekaterina Rakhmatullina; Katrin Bleek; Susanne Boye; Jiayin Yuan; Antje Völkel; Marlies Gräwert; Zeinab ..., Biomacromolecules, 2014

Poly(ethylene oxide) (PEO) has long been used as an additive in toothpaste, partly because it reduces biofilm formation on teeth. It does not, however, reduce the formation of dental calculus or support the remineralization of dental enamel or dentine. The present article describes the synthesis ...

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Sustainable DNA Release from Chitosan/Protein Based-DNA Gel Particles

10.10.2014 | M. Carmen Morán; Andreia F. Jorge; M. Pilar Vinardell, Biomacromolecules, 2014

Chitosan lactate (CL) alone and in combination with protamine sulfate (PS) was used as an intrinsic biocompatible carrier to form DNA gel particles by interfacial diffusion. Protamine sulfate is highly positively charged, arginine-rich protein, which has been previosly used in the formation of ...

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Dragline Silk: A Fiber Assembled with Low-Molecular-Weight Cysteine-Rich Proteins

09.10.2014 | Thanh Pham; Tyler Chuang; Albert Lin; Hyun Joo; Jerry Tsai; Taylor Crawford; Liang Zhao; Caroline Williams; Yang Hsi ..., Biomacromolecules, 2014

Dragline silk has been proposed to contain two main protein constituents, MaSp1 and MaSp2. However, the mechanical properties of synthetic spider silks spun from recombinant MaSp1 and MaSp2 proteins have yet to approach natural fibers, implying the natural spinning dope is missing critical ...

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Unprecedented Access to Strong and Ductile Poly(lactic acid) by Introducing In Situ Nanofibrillar Poly(butylene succinate) for Green Packaging

08.10.2014 | Lan Xie; Huan Xu; Ben Niu; Xu Ji; Jun Chen; Zhong-Ming Li; Benjamin S. Hsiao; Gan-Ji Zhong, Biomacromolecules, 2014

The notion of toughening poly(lactic acid) (PLA) by adding flexible biopolymers has generated enormous interest but has yielded few desirable advances, mainly blocked by the sacrifice of strength and stiffness due to uncontrollable phase morphology and poor interfacial interactions. Here the ...

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Triggering Protein Adsorption on Tailored Cationic Cellulose Surfaces

08.10.2014 | Tamilselvan Mohan; Katrin Niegelhell; Cíntia Salomão Pinto Zarth; Rupert Kargl; Stefan Köstler; Volker Ribitsch; Tho ..., Biomacromolecules, 2014

The equipment of cellulose ultrathin films with BSA (bovine serum albumin) via cationization of the surface by tailor-made cationic celluloses is described. In this way, matrices for controlled protein deposition are created, whereas the extent of protein affinity to these surfaces is controlled ...

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