Sugar-based hydrogels were prepared by non-selective modification of sucrose with the introduction of vinyl groups. Sucrose was reacted with glycidyl methacrylate (1:1 molar ratio) in DMSO and in the presence of 4-(N,N-dimethylamino)pyridine (4-DMAP) as catalyst. The structure of the product (SucMA) was established using H NMR, H DQF-COSY NMR and C NMR analysis. Gels were prepared by copolymeri...

We demonstrate that a fixed junction between two aqueous gels containing oppositely charged polyelectrolytes could rectify electric current. The agarose-based gels were "doped" with sodium poly(styrene sulfonic acid) and poly(diallyl dimethylammonium chloride). The unidirectional current response of the interface between the cationic and anionic gels originates directly from anisotropy in the m...

The 7S and 11S globulins, the main protein fractions found in legumes, may differ functionality. This study evaluated gel formation rheological microstructural properties of gels formed from faba bean. effect adding sodium chloride (NaCl) was also investigated. In terms mechanical properties, NaCl addition appeared to have an opposing on gels. Gels showed increases storage modulus peak stress w...

The purpose of this paper is to describe a technique of zone electrophoresis in polyacrylamide gels. The salient characteristics of the technique reside in (1) the controlled variation of the gel pore size for the purpose of increasing the resolution of ions based on dimensional differences and (2) an electrophoretic step for concentrating the sample ions into a narrow starting zone prior to el...

1M.Tech. Scholar, Department of Computer Science & Applications, Kurukshetra University, Haryana, India 2Assistant Professor, Department of Computer Science & Applications, Kurukshetra University, Haryana, India -------------------------------------------------------------------------***-----------------------------------------------------------------------AbstractThe distributed architecture o...

Permanently crosslinked polyelectrolyte gels are known to undergo discontinuous first-order volume phase transitions, the onset of which may be caused by a number of factors. In this study we examine the volumetric properties of such polyelectrolyte gels in relation to the progressive substitution of monovalent counterions by divalent counterions as the gels are equilibrated in solvents of diff...