We have used a very large scale integration process to generate well-defined patterns of polymerized 2-hydroxyethyl methacrylate (HEMA) on patterned Si(100) surfaces. An atom transfer radical polymerization initiator covalently bonded to the patterned surface was employed for the graft polymerization of HEMA to prepare the poly(2-hydroxyethyl methacrylate) (PHEMA) brushes. After immersing wafer...

Submit Manuscript | http://medcraveonline.com Abbreviations: PMMA: Poly Methyl Methacrylate; HEMA: Hydroxyethyl Methacrylate; FDA: Food and Drug Administration; BCLA: British Contact Lens Association; ACHIEVE: Adolescent and Child Health Initiative to Encourage Vision Empowerment; UDVA: Uncorrected Distance Visual Activity; IOL: Intraocular Lens; IOP: Intraocular Pressure; MEMS: Micro Electro M...

Supercritical impregnation is an attractive “clean” alternative to conventional soaking into liquid process, using generally organic solvents. Impregnation process can be used for the development of controlled delivery systems that can be applied in pharmaceutical and medical fields. This work focuses on the preparation of controlled drug delivery systems for ophthalmic applications through sup...

PURPOSE To examine the effect of hydrogel lens monomer constituents on protein sorption. METHODS A series of hydroxyethylmethacrylate (HEMA)-based hydrogels with various amounts of methacrylic acid (MAA) or N-vinyl pyrrolidone (NVP) were synthesized. A radiolabel tracer technique was used to measure the amount of protein adsorbed on or penetrating into the hydrogels. Penetration of fluorescen...

The extracellular matrix (ECM), constituting the follicular basal lamina and present also between follicular cells and in the follicular fluid, is believed to regulate granulosa cell (GC) function during follicular development. Ovine GCs isolated from small (1-3 mm in diameter) or large (4-7 mm in diameter) antral follicles were cultured on various pure ECM components (type I collagen, fibronec...

As frequently added to adhesives, the mono-functional monomer 2-hydroxyethyl methacrylate (HEMA) acts as co-solvent and improves surface wetting. Nevertheless, HEMA promotes watersorption hydrolysis at adhesive interfaces, affecting bond durability dentin. This study investigated if two acrylamide co-monomer alternatives could replace in experimental adhesive-resin formulations part of 3/2-step...

Vinculin specific cDNA clones were isolated from chicken embryo fibroblast (CEF) cDNA library in lambda gt11. The clones, ranging in size from 2.8 to 5.0 kb, were initially selected by rabbit antibodies to vinculin. Their identity was further confirmed by their specific reactivities with a battery of different vinculin-specific monoclonal antibodies. Southern blot analysis of restriction enzyme...