Controlling bacterial contamination has been a major challenge for protecting human health and welfare. In this context, hydrogels loaded with silver nanoparticles have been used to prevent biofilm formation on substrates of interest. However, such gel composites are often plagued by rapid loss of silver nanoparticles and matrix softening, and thus the gel becomes less effective for antifouling...

For the first time we demonstrate a microfluidic platform for the preparation of biosensing hydrogels by in situ polymerization of polyethyleneglycol diacrylate (PEG-DA) in a single step. Capillary pressure barriers enable the precise formation of gel microstructures for fast molecule diffusion. Parallel arrangement of these finger structures allows for macroscopic and standard equipment readou...

Topical administration of a drug in the conjunctival cul-de-sac is the treatment of choice for diseases of the anterior segment of eye. Development of ophthalmic drug delivery systems has always been challenging because of the drawbacks with this route, like non-productive absorption, drainage, induced lacrimation, tear turn over, impermeability of drugs to cornea. New approaches have been inve...

Abstract: Aim/Background: The purpose of the study was to fabricate and evaluate atenolol loaded micro-sponge in-situ gel. Materials Methods: Oil in Emulsion Solvent Diffusion Technique used for formulation microsponges by using different levels polymers such as Eudragit RS-100 Ethyl Cellulose. prepared micro-sponges were evaluated optical microscopy, percentage yield, drug content, entrapment ...

This review focuses on the opportunities provided by sol–gel chemistry for production of silica/epoxy nanocomposites, with significant representative examples “extra situ” approach and an updated description “in strategy. The strategy enables creation nanocomposites containing highly engineered nanoparticles. is a very promising synthesis route that allows us to produce, in much easier eco−frie...

Poor bioavailability is one of the most significant problems in delivery ocular drug system. Ophthalmic ointments, solutions and suspensions are frequently used dosage forms to treat disease, their effectiveness as a compromised by several limitations that lead poor bioavailability. In situ gel promising strategy improve drugs. The purpose this review discuss formulation characterization gel. T...

Objective: To develop in-situ gel formulations of Lornoxicam for sustained release to reduce the dosing frequency in treatment rheumatoid arthritis. Methods: The method ion-sensitive formation was used this study. situ were prepared by varying concentrations sodium alginate as a bio-degradable gel-forming polymer, CaCl2 cross-linking agent, and chitosan, HPMCK4, HPMCK15, guar gum, gellan xantha...

W Peters, D Smith, S Lugowski. Failure properties of 352 explanted silicone-gel breast implants. Can J Plast Surg 1996;4(1):55-58. There have been three generations of silicone-gel breast implants. First generation implants (thick wall – thick gel with Dacron patches) were made from 1963 to 1972. Second generation implants (thin wallthin gel) were made from 1972 until the mid 1980s. The introdu...

There is a discrepancy in telomere length as measured by signal intensity of telomere restriction fragments on gels and fluorescence in situ hybridization analysis. This difference has been ascribed to the X-region, a segment of subtelomeric DNA that is resistant to being cut by restriction enzymes. To explore the nature of this region, we analyzed the digestibility of an artificial seeded telo...