the aim of this study was to investigate the barrier properties of cellulose nanocrystals-pvananocomposites. nanocomposite films with different filler loading levels (3, 6, 9 and 12% by wt) weredeveloped by solvent casting method. the effect of cellulose nanocrystals on the barrier properties ofthe nanocomposites was studied. to this end, moisture absorption, water vapor permeability (wvp),oxyg...

A green, rapid, and facile synthesis method of activated carbon was developed optimized using 50 nm MgO nanoparticle (NP)-based pore templating in tandem with an integrated drying carbonization-activation heat treatment. TEMPO-oxidized cellulose nanofibers (TOCN) were mixed NPs KOH, freeze-dried, treated first at 350 °C then 800 to get templated carbon. Selective formation by KOH resulting the ...

The o-nitrophenylsulfenyl group, and amino protecting group in the chemical synthesis of peptidyl-tRNA was used to attach newly synthesized peptidyl-tRNA to a benzoylated DEAE-cellulose column. This facilitated the isolation of a highly purified specific tRNA with a well defined peptide chain.

the effect of different carbon sources on bacterial cellulose production by gluconacetobacter xylinus (ptcc 1734) and two newly isolated strains (from vinegar) under static culture conditions was studied. the production of bacterial cellulose was examined in modified hestrin-shramm medium by replacing d-glucose with other carbon sources. the results showed that the yield and characteristics of ...

polyanionic cellulose polymer is used as an additive in drilling mud in order to decrease water loss and mudcake- thickness. in this study effect of bulk and nanosize polyanionic cellulose on water loss and mud-cakethickness in mud drilling is investigated. polyanionic cellulose nanoparticles are made by using of ball milling. size of nanoparticles is measured by particle size analyzer. polyani...