conclusions the most effective enhancer for aha and ha were liquid paraffin and glycerol, respectively. the most effective surfactant for both aha and ha was tween 80. the effects of the enhancers were increased by prolonging the exposure time. results after 1.5 and 12 hours, the maximum permeated amount of aha were 89.8 and 342.5 mg, respectively, which related to the formulations with liquid ...

a simple and mild method for tetrahydropyranylation of alcohols is reported at room temperature using a catalytic amount of 3-methylimidazolinium hydrogensulfate([hmim]hso4) as a green, efficient and reusable catalyst. using solvent-free conditions, non-toxic and inexpensive materials, modest and clean work-up, short reaction times and high yields of the products are the advantages of this method.

the present investigation was aimed at studying the effect of incubation period, media, vitamins and solvents on biotransformation of albendazole by cunninghamella blakesleeana. the transformation was evaluated and identified by high performance liquid chromatography (hplc) and the structures of the transformed products were assigned by liquid chromatography-tandem mass spectrometry (lc/ms/ms) ...

An electrolyte is a vital component that creates an avenue for zinc ions to migrate and forms cathode–anode intermediary in based battery system. Zinc metal thermodynamically unstable prone dissolve acidic aqueous solutions. Indeed, there are still lot of issues with using liquid on frequent basis. Given its intimate connection the ionic conductivity electrochemical stability window, liquids (I...

background: histamine is a food-borne chemical hazard which causes scombroid poisoning. the efficiency of histamine recovery from fish is greatly influenced by selection of an appropriate extraction solvent. hence, in this study the efficiency of different extraction solvents on recovery of histamine from fresh, frozen and canned fish was evaluated. methods: fresh, frozen and canned rainbow tro...

Developing fluorescent paper-based materials with recyclable, environmental friendly, excellent stable and uniform performances are still an urgent challenge at present. Herein, a simple, green, high-efficiency method for the fabrication of high stability recyclable cellulose-based paper from waste bagasse via Hantzsch reaction is proposed. Compared to pristine paper, surface modification showe...

High-performance electromagnetic interference (EMI) shielding material that can function properly under extreme working conditions is critical for their practical applications. Herein, flexible and highly conductive meta-aramid (PMIA) nonwoven fabrics were fabricated by combining polydopamine (PDA) modification electroless silver plating. The PDA greatly enhanced the efficient deposition of nan...

biosorption of acidic dyes using the live fern azolla filliculoides was studied in a discontinuous system. dye parameters, dye initial concentration and contact time were studied in temperature range of 25-30 ?c and ph=7. it was shown that increasing the 23initial concentration of dye and its contact time resulted in decreasing the dye taking quantity by the absorbent. also, type of dye has an ...