Abstract Bacterial conjunctivitis characterized as pink eye referred as an inflammation of an eye caused by the enlargement of blood vessels present in conjunctiva, resulting in a red or bloodshot appearance of the eyes. Topical ocular delivery is found to be useful in treating conjunctivitis, but to maintain an effective drug concentration at a site of action in order to achieve desired pha...

statement of the problem: endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. purpose: the aim of this study was to compare the effect of calcium hydroxide (ca(oh) 2 ) and 2% chlorhexidine gel (chx) on bond strength of fiber post cemented with resin cement to root dentin. materials and method: this in vitro experimental study was conducted on 36...

We investigate the role of hydrodynamic interactions in the formation of clusters of attractive colloids by means of computer simulations. In simulations employing the multiparticle collision dynamics scheme to represent hydrodynamics, larger and, to a lesser extent, more elongated transient clusters are formed than in simulations merely employing Langevin dynamics. As these clusters constitute...

This paper reports a method to integrate silica aerogels monolithically in microfluidic chips. Silica Aerogel is a highly porous bulk material. The gel was synthesized from tetraethyl orthosilicate by a sol-gel process. Polyethylene glycol and an extended aging period were used to strengthen the matrix minimizing gel shrinkage. This technique allows alcogel structures with high strength and sti...

Abstract The effects of various material compositions and reservoir environments on the ultimate strength swelling kinetics a commercial preformed particle gel (PPG) have been investigated. This study used different ratios acrylamide acrylic acid copolymers with specific crosslinker concentration. Results indicated that increasing proportion enhances PPGs’ ability to swell but weakens their net...

Accurate resolution of PCR products in the range of 15-40 kb may be obtained in agarose gels without pulsed field electrophoresis. A gel of 0.3% SeaKem Gold agarose cast on GelBond support film provides good resolution and sufficient get strength to reliably allow staining and photography. This paper describes a test system for Long PCR and demonstrates analysis of the PCR products on a gel run...

The main aim of the present investigation was to develop in situ gelling mucoadhesive liquid suppositories of ondansetron by using mucoadhesive polymers such as sodium alginate, methyl cellulose and polyvinylpyrrolidone. Polyethylene glycol was used to modify gelation temperature. Mucoadhesive liquid suppositories of ondansetron were prepared by adding mucoadhesive polymers (0.8% w/w) to the fo...

Studies of dynamic and equilibrium swelling of ionic gels are important in understanding the diffusion of physiologically important fluids in materials for site-specific controlled drug delivery applications. The dynamic and equilibrium swelling properties of dry glassy poly(2-hydroxyethyl methacrylate-co-methacrylic acid) and poly(2-hydroxyethyl methacrylate-co-acrylic acid) polymeric networks...