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Lower-Sized Chitosan Nanocapsules for Transcutaneous Antigen Delivery. NANOMATERIALS 2018; 8:nano8090659. [PMID: 30149658 PMCID: PMC6164329 DOI: 10.3390/nano8090659] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 08/14/2018] [Accepted: 08/22/2018] [Indexed: 11/17/2022]
Abstract
Transcutaneous vaccination has several advantages including having a noninvasive route and needle-free administration; nonetheless developing an effective transdermal formulation has not been an easy task because skin physiology, particularly the stratum corneum, does not allow antigen penetration. Size is a crucial parameter for successful active molecule administration through the skin. Here we report a new core-shell structure rationally developed for transcutaneous antigen delivery. The resulting multifunctional carrier has an oily core with immune adjuvant properties and a polymeric corona made of chitosan. This system has a size of around 100 nm and a positive zeta potential. The new formulation is stable in storage and physiological conditions. Ovalbumin (OVA) was used as the antigen model and the developed nanocapsules show high association efficiency (75%). Chitosan nanocapsules have high interaction with the immune system which was demonstrated by complement activation and also did not affect cell viability in the macrophage cell line. Finally, ex vivo studies using a pig skin model show that OVA associated to the chitosan nanocapsules developed in this study penetrated and were retained better than OVA in solution. Thus, the physicochemical properties and their adequate characteristics make this carrier an excellent platform for transcutaneous antigen delivery.
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Zhang Y, Wang D, Gao M, Xu B, Zhu J, Yu W, Liu D, Jiang G. Separable Microneedles for Near-Infrared Light-Triggered Transdermal Delivery of Metformin in Diabetic Rats. ACS Biomater Sci Eng 2018; 4:2879-2888. [DOI: 10.1021/acsbiomaterials.8b00642] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Zhang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Danfeng Wang
- Department of Gynecology and Obstetrics, Tonglu Maternal and Child Health Care Hospital, Tonglu, Zhejiang 311500, China
| | - Mengyue Gao
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Bin Xu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Jiangying Zhu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Weijiang Yu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Depeng Liu
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Guohua Jiang
- Department of Polymer Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology, Hangzhou, Zhejiang 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
- Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
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