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Multifunctional bioactive glass scaffolds coated with layers of poly(D,L-lactide-co-glycolide) and poly(n-isopropylacrylamide-co-acrylic acid) microgels loaded with vancomycin. 2013

B Olalde, and N Garmendia, and V Sáez-Martínez, and N Argarate, and P Nooeaid, and F Morin, and A R Boccaccini
TECNALIA Health Division and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 20009 San Sebastián, Spain.

A new family of multifunctional scaffolds, incorporating selected biopolymer coatings on basic Bioglass® derived foams has been developed. The polymer coatings were investigated as carrier of vancomycin which is a suitable drug to impart antibiotic function to the scaffolds. It has been proved that coating with PLGA (poly(lactic-co-glycolic acid)) with dispersed vancomycin-loaded microgels provides a rapid delivery of drug to give antibacterial effects at the wound site and a further sustained release to aid mid to long-term healing. Furthermore, the microgels also improved the bioactivity of the scaffolds by acting as nucleation sites for the formation of HA crystals in simulated body fluid.

UI MeSH Term Description Entries
D008855 Microscopy, Electron, Scanning Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY. Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D008903 Minerals Native, inorganic or fossilized organic substances having a definite chemical composition and formed by inorganic reactions. They may occur as individual crystals or may be disseminated in some other mineral or rock. (Grant & Hackh's Chemical Dictionary, 5th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Mineral
D010758 Phosphorus A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions. Black Phosphorus,Phosphorus-31,Red Phosphorus,White Phosphorus,Yellow Phosphorus,Phosphorus 31,Phosphorus, Black,Phosphorus, Red,Phosphorus, White,Phosphorus, Yellow
D011100 Polyglycolic Acid A biocompatible polymer used as a surgical suture material. Polyglycolide,Biofix,Dexon (Polyester),Dexon-S,Dexon S,DexonS
D011108 Polymers Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS). Polymer
D002118 Calcium A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D005782 Gels Colloids with a solid continuous phase and liquid as the dispersed phase; gels may be unstable when, due to temperature or other cause, the solid phase liquefies; the resulting colloid is called a sol.
D005898 Glass Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
D000077182 Polylactic Acid-Polyglycolic Acid Copolymer A co-polymer that consists of varying ratios of polylactic acid and polyglycolic acid. It is used as a matrix for drug delivery and for BONE REGENERATION. PLGA Acid,LactoSorb,PL-PG Copolymer,PLG Polymer,PLGA Compound,Poly (D,L-lactic-co-glycolic Acid),Poly (Lactic-co-glycolic Acid) -,Poly(D,L-lactide-co-glycolide),Poly(DL-lactide-co-glycolic Acid),Poly(Glycolide-co-lactide),Poly(L-lactide)-co-glycolide,Poly(Lactic-co-glycolic Acid),Poly-L-lactic-polyglycolic Acid,Polylactic-co-glycolic Acid Copolymer,RG 502,Acid, PLGA,Acids, PLGA,Copolymer, PL-PG,Copolymer, Polylactic-co-glycolic Acid,Copolymers, PL-PG,Copolymers, Polylactic-co-glycolic Acid,PL PG Copolymer,PL-PG Copolymers,PLG Polymers,PLGA Acids,PLGA Compounds,Poly L lactic polyglycolic Acid,Poly-L-lactic-polyglycolic Acids,Polylactic Acid Polyglycolic Acid Copolymer,Polylactic co glycolic Acid Copolymer,Polylactic-co-glycolic Acid Copolymers,Polymer, PLG,Polymers, PLG
D000178 Acrylamides Colorless, odorless crystals that are used extensively in research laboratories for the preparation of polyacrylamide gels for electrophoresis and in organic synthesis, and polymerization. Some of its polymers are used in sewage and wastewater treatment, permanent press fabrics, and as soil conditioning agents.

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