000 02429nam a2200325Ia 4500
003 MX-MdCICY
005 20250625160210.0
040 _cCICY
090 _aB-17417
245 1 0 _aThermosensitive chitosan/glycerophosphate-based hydrogel and its derivatives in pharmaceutical and biomedical applications
490 0 _vExpert Opin Drug Delivery, 11(2), p.249-67, 2014
520 3 _aINTRODUCTION Thermogelling chitosan (CS)/glycerophosphate (GP)solutions have been reported as a new type of parenteral in situ forming depot system. These free-flowing solutions at ambient temperature turn into semi-solid hydrogels after parenteral administration. AREAS COVERED: Formulation parameters such as CS physico-chemical characteristics, CS/gelling agent ratio or pH of the system, were acknowledged as key parameters affecting the solution stability, the sol/gel transition behavior and/or the final hydrogel structure. We discuss also the use of the standard CS/GP thermogels for various biomedical applications, including drug delivery and tissue engineering. Furthermore, this manuscript reviews the different strategies implemented to improve the hydrogel characteristics such as combination with carrier particles, replacement of GP, addition of a second polymer and chemical modification of CS. EXPERT OPINION: The recent advances in the formulation of CS-based thermogelling systems already overcame several challenges faced by the standard CS/GP system. Dispersion of drug-loaded carrier particles into the thermogels allowed achieving prolonged release profiles for low molecular weight drugs; incorporation of an additional polymer enabled to strengthen the network, while the use of chemically modified CS led to enhanced pH sensitivity or biodegradability of the matrix.
650 1 4 _aCHITOSAN
650 1 4 _aDRUG DELIVERY
650 1 4 _aGLYCEROPHOSPHATE
650 1 4 _aHYDROGEL
650 1 4 _aIN-SITU FORMING DEPOT
650 1 4 _aSUSTAINED RELEASE
650 1 4 _aTHERMOSENSITIVE
650 1 4 _aTISSUE ENGINEERING
700 1 2 _aSupper S.
700 1 2 _aAnton N,
700 1 2 _aSeidel N,
700 1 2 _aRiemenschnitter M.
700 1 2 _aCurdy C.
700 1 2 _aVandamme T.
856 4 0 _uhttps://drive.google.com/file/d/1M5TPhxNeHHde_ZbU05jH9krQiYNeRbCC/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c51580
_d51580