Bioadhesives colloidal

Bernkop-Schnurch A, Humenberger C, Yalenta C (1998) Basic studies on bioadhesive delivery systems for peptide and protein drugs. Int J Pharm 165(2) 217-225 Chae SY, Jang M-K, Nah J-W (2005) Influence of molecular weight on oral absorption of water soluble chitosans. J Control Rel 102(2) 383-394 Cho EC, Lim HJ, Shim J, Park JY, Dan N, Kim J, Chang I-S (2007) Effect of polymer characteristics on structure of polymer-liposome complexes. J Colloid Interf Sci 311(1) 243-252... 

Knowledge of the structure of barnacle cement within colloidal dimensions has recently been gained. It is shown that the barnacle adhesive presents a useful tool for understanding and investigating formation of bioadhesive structures as colloidal systems. 

As more sophisticated adhesion models become available, it is obvious that they will greatly influence the applications of adhesion, from colloids, pastes and gels to aerospace, electronics and cells. It seems likely that, just as photocopying, food, and aerospace drove adhesion science forward in the last 50 years, electronics and bioadhesion will pnsh back the bonndaries in the new milleninm. We will move increasingly towards molecnlar applications. 

Bioadhesion is very complicated from a physical-chemical point of view. Interfacial tensions, wetting, and electrical properties of the surfaces are prominently involved. Because the (aqueous) medium from which the cells adhere usually contains surface-active molecules, notably proteins, the cells adhere as anile onto an adsorbed proteinaceous layer. The preformed adsorbed layer will therefore largely determine the subsequent cell adhesion process. Furthermore, biological cells often carry polymeric substances at their surfaces. These components may influence the interaction with a substratum surface in various ways, as is explained in Section 16.3. Understanding bioadhesion therefore requires a thorough knowledge of various aspects of colloid and interface science. 

The long-range interactions in bioadhesion may be more or less successfully predicted by applying concepts from colloid and interface science. Describing the short-range interactions requires detailed knowledge of the stereochemistry for each individual case and such subtle information is nsnaUy not available. 

Melgar-Lesmes P, Morral-Ruiz G, Solans C, Jose Garcia-Celma M. Quantifying the bioadhesive properties of surface-modified polyurefhane-urea nanoparticles in tire vascular network. Colloids Surf B Biointerfaces June 1, 2014 118 280-8. 

A. Jaipal, M. Pandey, A. Abhishek, S. Vinay, and S. Charde, Interaction of calcium sulfate with xanthan gum Effect on in vitro bioadhesion and drug release behavior from xanthan gum based buccal discs of buspirone. Colloid. Surface. B Biointerfaces, 111, 644-650,2013. 

Uses Solubilizer, stabilizer, protective colloid, suspending agent, dispersant, binder, film-former for parenteral applies., antibiotics, antiseptics, steroid hormones, vitamins bioadhesive blood plasma expander detoxicant reduces irritation at in], site clarifier for beer, wine, vinegar tableting adjuvant for vitamins, minerals, flavor cones., nonnutritive sweeteners stabilizer, bodying agent, dispersant in foods Features Pyrogen-free... 

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