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Gel print that page


densities similar to those of their constituent liquids. Edible jelly is a common example of a hydrogel and has approximately the density of water. [ edit ] Cationic polymers Cationic polymers are positively charged polymers. Their positive charges prevent the formation of coiled polymers

Hyaluronan print that page


The average 70 kg (154 lbs) person has roughly 15 grams of hyaluronan in the body, one-third of which is turned over (degraded and synthesized) every day. [ 3 ] Hyaluronic acid is also a component of the group A streptococcal extracellular capsule , [ 4 ] and is believed to play a role

Contact lens print that page


Implantation 3 Manufacturing of contact lenses 3.1 Extended Wear Contacts Lenses 3.1.1 Silicone Hydrogel Lenses 3.2 Hydrogel materials 4 Contact lens prescriptions 5 Complications 5.1 Eyelid 5.2 Conjunctiva 5.3 Cornea 6 Usage 6.1 Insertion 6.2 Removal

Nicholas A. Peppas print that page


He was educated in chemical engineering at the National Technical University of Athens ( D. Eng. , 1971 ) and at the Massachusetts Institute of Technology ( Sc.D. , 1973 ) under the direction of bioengineering pioneer Edward W. Merrill [ 1 ] . Subsequently, he was a postdoctoral fellow in

Bioadhesive print that page

Bioadhesives may consist of a variety of substances, but proteins and carbohydrates feature prominently. Proteins such as gelatin and carbohydrates such as starch have been used as general-purpose glues by man for many years, but typically their performance shortcomings have seen them | 2010/9/27 3:08:09

Biosensor print that page


A biosensor is an analytical device for the detection of an analyte that combines a biological component with a physicochemical detector component. It consists of 3 parts: the sensitive biological element (biological material (e.g. tissue, microorganisms, organelles, cell receptors, enzymes

Nerve guidance conduit print that page

and nanostructure 1.2.1 Physical cues 1.2.2 Chemical cues 2 Scaffold material 2.1 Hydrogel 2.2 Synthetic polymer 2.2.1 Collagen-terpolymer 2.2.2 Poly (lactic-co-glycolic acid) family 2.2.3 Methacrylated dextran (Dex-MA) copolymerized with aminoethyl methacrylate (AEMA | 2011/4/30 15:44:34

Fibrin scaffold print that page

Fibrin consists of the blood proteins fibrinogen and thrombin which participate in blood clotting . Fibrin glue or fibrin sealant is also referred to as a fibrin based scaffold and used to control surgical bleeding, speed wound healing , seal off hollow body organs or cover holes made by | 2010/9/26 2:12:45

Self-assembling peptide print that page

Effectively they act as building blocks for a wide range of material and device applications. The essence of this technology is to replicate what nature does: to use molecular recognition processes to form ordered assemblies of building blocks that are capable of conducting biochemical activities | 2011/7/23 12:59:10

Tissue engineering print that page


A commonly applied definition of tissue engineering, as stated by Langer [ 1 ] and Vacanti, [ 2 ] is "an interdisciplinary field that applies the principles of engineering and life sciences toward the development of biological substitutes that restore, maintain, or improve tissue function