Polylactic Acid Microsphere

Polylactic Acid Microsphere

POLYLACTIC ACID MICROSPHERES AS A POTENTIAL VACCINE DELIVERY SYSTEM FOR THE TETANUS TOXOID: PREPARATION AND IN VITRO DISSOLUTION STUDY

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Sustained release of macromolecular drugs from polymeric matrices has received increasing attention in recent years. Vaccines that are required to be given in multiple divided doses are not efficacious if only one dose is given without boosting. In order to be effective, most vaccines require two or three booster doses after primary immunization. Therefore, the conversion of multiple dose vaccines into single dose vaccines may represent an important advance. Among the various tentative for improving the administration of proteins, the microencapsulation into biodegradable polymers represents a...