9-[1-(2-Methyl-4-methoxyphenyl)]-6-hydroxy-3H-xanthen-3-one (2-Me-4-OMe TG) is a fluorescein derivative dye whose photophysical properties show a remarkable pH dependence. In aqueous solution the fluorescence quantum yield (Φf) of its anionic species is nearly a hundred times higher than that of its neutral species. Such a large difference in Φf makes 2-Me-4-OMe TG useful as an "on-off" pH indi...

This article deals with three cellulose-based fluorescent macromolecular sensors by introducing 1,8-naphthalimide fluorophore to cellulose. First, through the etherification reaction of cellulose BrCH2CH2NH2, –NH2 group–bearing CS 1 was obtained. Then, group reacts 4-bromo-1,8-naphthalic anhydride synthesize a naphthalimide derivative (CS 2). Finally, recognition introduced substituting Br atom...

Mature endoglucanase E (EGE) from Clostridium thermocellum consists of 780 amino acid residues and has an Mr of 84,016. The N-terminal 334 amino acids comprise a functional catalytic domain. Full-length EGE bound to crystalline cellulose (Avicel) but not to xylan. Bound enzyme could be eluted with distilled water. The capacity of truncated derivatives of the enzyme to bind cellulose was investi...

In this study, matrix-type transdermal patches of glibenclamide were developed using a combination hydrophilic and hydrophobic polymers for investigating the efficacy carriers. A cellulose derivative, HPMC E50, was used as matrix-forming polymer, Eudragit RS 100 polymer. The solvent casting technique employed to develop blend patch formulation chloroform methanol solvent. No drug–polymer intera...

Conductive flexible hydrogel composites were printed on paper substrates using a functional ink, whichwas designed and formulated for screen-printing. The inkswere prepared using abundant and eco-friendlymaterials by blending carbon fibers into thematrix of a water-soluble cellulose derivative, carboxymethyl cellulose. For an optimal concentration of carbon fibers (10wt.%), the printed patterns...

Carboxymethyl cellulose, a water-soluble cellulose derivative, has been used extensively as a biomaterial for wound healing and pharmacological applications. It is a biocompatible and biodegradable polymer but its poor stability, limits its long-term application. In this study, carboxymethyl cellulose scaffolds were prepared at different concentrations (2.5 wt% and 5.0 wt%) by freeze drying met...

Recently, IL/cosolvent systems have generated a lot of interest as cellulose-dissolving solvents and reaction media for various kinds of cellulose modification. In the present study, both 1-allyl-3-methylimidazolium chloride (AmimCl)/dimethyl sulfoxide (DMSO) and AmimCl/N,N-dimethylformamide (DMF) systems were employed to synthesize cellulose acetate by transesterification. Microcrystalline cel...