Polysaccharide nanorods (chitin, cellulose) can be used as colloidal templates to form silica-based mesoporous materials by combining self-assembly and sol-gel chemistry. Chitin are chosen here for their properties, facile preparation from natural resources, because of the complexing properties free amino groups at surface in view further functionalization. Electrospinning ethanolic co-suspensi...

Arrowroot (Maranta arundinacea) and Chitosan are two well-known materials used in medical and scientific applications. Both materials possess medicinal properties and have the ability to form thick gels. Chitosan-reinforced Arrowroot film was developed and its dielectric characterization was performed at microwave frequencies. Cavity perturbation method was used for the measurement. The study p...

fatemeh karimi tabar was born in asadabad/hamedan (iran) in 1986. she completed her b.sc. in chemistry in 2008 from bu-ali sina university, hamedan, iran. she was graduated from m.sc. degree in organic chemistry from shiraz university 2010, shiraz, iran. she is currently organic chemistry ph.d student under the supervision of prof. m.a. zolfigol and prof. a. khazaei in department of chemistry a...

Supramolecular chemistry has garnered important interest in recent years toward improving therapeutic efficacy via drug delivery approaches. Although self-assemblies have been deeply investigated, the design of novel drugs leveraging supramolecular is less known. In this contribution, we show that a Low Molecular Weight Gel (LMWG) can elicit cancer cell apoptosis. This biological effect results...

hdpe monofilaments were obtained using different extruders and drawn by post-extruder equipments. after solidification, drawn and undrawn monofilaments (draw ratio 7:1) were irradiated with 10 mev electron beams in air at room temperature at 25, 50, 75, 100 and 125 kgy dose ranges to induce a network structure. hdpe crosslinking was studied on the basis of gel content measurements. the fibers w...

The silicate oligomerization reaction is key to sol-gel chemistry and zeolite synthesis. Numerous experimental and theoretical studies have been devoted to investigating the physical chemistry of silicate oligomers in the prenucleation stage of siliceous zeolite formation. Most of the previous quantum chemical computational work has used gas phase models or continuous solvent models for silica ...

The biheterocyclic derivative of the phosphonic glycine analogue is prepared selectively by reaction between α-azidoamino diethyl methylphosphonate and 1-(prop-2-yn-1-yl)-1H-benzo[d]imidazole. dipolar -1,3 cycloaddition using Click Chemistry was carried out in a solvent water/ethanol mixture ratio 1:1. Copper sulphate pentahydrate sodium ascorbate are used catalytic amounts. compound [diethyl [...

Organic synthetic methodology in the 21st century aims to conform to the principles of green sustainable chemistry (GSC) and we may expect that in the future, the realization of GSC will be an important objective for chemical industries. An important aim of synthetic organic chemistry is to implement waste-free and environmentally-benign industrial processes using Lewis acids as versatile as al...