<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">dharmendra singh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%"> Application of hydrogel</style></title><secondary-title><style face="normal" font="default" size="100%">hydrogels</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><pages><style face="normal" font="default" size="100%">12</style></pages><abstract><style face="normal" font="default" size="100%">Dharmendra singh*,Versha shrivastava, Shrikant Nirwan, K. C. Samanta

*Department of pharmaceutics (Assist. Professor ), Gyan Vihar School of Pharmacy, 
Suresh Gyan Vihar University Jaipur. 


ABSTRACT

Hydrogel is a network of polymer chains that are water-insoluble, sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are crosslinked polymer networks that absorb substantial amounts of aqueous solutions. Several techniques have been reported for the synthesis of hydrogels. The first approach involves co polymerization/crosslinking of co-monomers using multifunctional co-monomer, which acts as crosslinking agent. Chemical initiator initiates the polymerization reaction. Some applications are used in hydrogels in pharmacy. Nanotherapeutics Files Investigational New Drug Application for NanoDOX™ Hydrogel to Treat Lower Extremity Diabetic Ulcers. Skin Oxygenation After Topical Application of Liposome-Entrapped Benzyl Nicotinate as Measured by EPR Oximetry in vivo: Influence of Composition and Size.
Starch Based Hydrogel with Potential Biomedical Application as Artificial Skin.
                                           Some environmental variables, such as low pH and elevated temperatures, are found in the body. For this reason, either pH-sensitive and/or temperature sensitive hydrogels can be used for site-specific controlled drug delivery. Hydrogels that are responsive to specific molecules, such as glucose or antigens, can be used as biosensors as well as drug delivery systems. New synthetic methods have been used to prepare homo- and co-polymeric hydrogels for a wide range of drugs, peptides, and protein delivery applications

 Keywords: Hydrogels, NanoDOX™, Polyvinyl Alcohol; Starch, hypan.
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