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| Lima,K.M.; Rodrigues Júnior,J.M.. |
| Successful vaccine application means maximum protection with minimal number of administrations. A rational development of vaccines involves studies of the nature of the antigen as well as of the adjuvant to be used to improve the immune responses. This has provided the impetus for studies to design the degradable devices and for different approaches to antigen delivery by different routes of administration. The development of controlled release systems based on polymeric devices that permit a sustained or pulsed release of encapsulated antigens has attracted much interest. Polymeric delivery systems consist of polymers that release their content continuously in a controlled manner over a period of time. The development of a biocompatible delivery system... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vaccine; Adjuvant; Microspheres; Microencapsulation; Biomaterial. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000200005 |
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| Yang,Zhenlei; Wang,Longmei; Tian,Liu; Zhang,Xiuping; Huang,Guihua. |
| Tadalafil, a long-acting PED-5 inhibitor, is commonly used for the treatment of pulmonary arterial hypertension (PAH). However, its efficacy and clinical application are severely limited by the poor water solubility, low bioavailability and a series adverse effects (e.g. headaches, indigestion). In this study, tadalafil was prepared and loaded into biodegradable PLGA (poly(lactic-co-glycolic acid)) microspheres (TDF-PLGA-MS) via emulsification-solvent evaporation. The resulting microspheres were processed into pulmonary inhalant by freeze drying. The TDF-PLGA-MS was spherical and uniform, with an average particle diameter ~10.29 µm. The encapsulation efficiency and drug loading yield of TDF-PLGA-MS were 81.68% and 8.52%, respectively. The investigation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pulmonary arterial hypertension; Tadalafil; PLGA; Microspheres; Pulmonary administration; Micromeritic; In vitro release; Pharmacokinetic; Tissue distribution. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100587 |
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