نتایج جستجو برای: polyanionic cellulose

تعداد نتایج: 30592  

Journal: :Chemical communications 2014
Boris Schmidtgall Anatol P Spork Falk Wachowius Claudia Höbartner Christian Ducho

The nucleosyl amino acid (NAA)-modification of oligonucleotides is introduced, which enables the preparation of oligonucleotides with zwitterionic backbone structures. It is demonstrated that partially zwitterionic NAA-modified DNA oligonucleotides are capable of duplex formation with native polyanionic counterstrands and show retained sensitivity towards base-pairing mismatches.

Journal: :Chemical communications 2013
Harish K Ravi Michaela Stach Thereza A Soares Tamis Darbre Jean-Louis Reymond Michele Cascella

Molecular dynamics simulations of the polycationic antimicrobial peptide dendrimer (Leu)8(DapLeu)4(DapPhe)2DapLys-NH2 binding to membranes suggest that electrostatic interactions with the polyanionic lipopolysaccharide (LPS) and conformational flexibility of the 2,3-diaminopropanoic acid (Dap) branching units drive its selective insertion into microbial membranes.

Bacterial cellulose is a biological polymer with a variety of extraordinary properties which make it a functional material for different industrial fields. This work aimed at monitoring the effects of three different organic acids and nanoparticles on the production, water holding capacity and structural characteristics of bacterial cellulose. Different concentrations of organic acids and nanop...

The purpose of this study was to utilize low quality date syrup, a rich and available source of nutrient in Iran, for the production of bacterial cellulose using Gluconacetobacter xylinus. Static batch fermentationfor the purpose of cellulose production by G. xylinus (PTCC, 1734) was studied using low quality date syrupand sucrose solution (Bx. 10%) as fermentation media at 28°C. Re...

Journal: :Chemical communications 2013
Hongdeng Qiu Shengxiang Jiang Makoto Takafuji Hirotaka Ihara

New polyanionic and polyzwitterionic azobenzene ionic liquid-functionalized silica materials were designed based on the preparation of a new polymerizable azobenzene anionic monomer and either its cation-exchange with alkylimidazolium after grafting or the formation of an ionic liquid monomer pair before grafting onto silica.

ژورنال: طلوع بهداشت یزد 2013
خوانین, علی , رضایی, عباس, ولی پور, فیروز, پور تقی, غلامحسین,

  Background: Homogenous texture and strong network of bacterial cellulose indicate that it can be used as filter and adsorbent. In this research bacterial cellulose was produced by Acetobacter Xilinum. Bacterial cellulose was used for reduction of toluene vapors from the air.     Methods: To measure adsorption capacity, 6 grams of bacterial cellulose in column glass with volume of 20 ml was us...

Bacterial cellulose is a biological polymer with a variety of extraordinary properties which make it a functional material for different industrial fields. This work aimed at monitoring the effects of three different organic acids and nanoparticles on the production, water holding capacity and structural characteristics of bacterial cellulose. Different concentrations of organic acids and nanop...

Journal: :The Journal of biological chemistry 2007
James C Geoghegan Pablo A Valdes Nicholas R Orem Nathan R Deleault R Anthony Williamson Brent T Harris Surachai Supattapone

The central pathogenic event of prion disease is the conformational conversion of a host protein, PrPC, into a pathogenic isoform, PrPSc. We previously showed that the protein misfolding cyclic amplification (PMCA) technique can be used to form infectious prion molecules de novo from purified native PrPC molecules in an autocatalytic process requiring accessory polyanions (Deleault, N. R., Harr...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1996

Journal: :Chem 2023

Summary Bistable molecules represent a potential miniaturization limit for high-density information technologies. However, exhibit memory effect typically at very low temperatures. This is the case of spin-crossover (SCO) complexes, where concept molecular has not been considered due to fast spin-state interconversion all previous systems. Breaking this principle, here we report slow r...

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