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Chen P, Liu J, Zhang K, Huang D, Huang S, Xie Q, Yang F, Huang J, Fang D, Huang Z, Lu Z, Chen Y. Preparation of clarithromycin floating core-shell systems (CSS) using multi-nozzle semi-solid extrusion-based 3D printing. Int J Pharm 2021; 605:120837. [PMID: 34197910 DOI: 10.1016/j.ijpharm.2021.120837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/15/2021] [Accepted: 06/25/2021] [Indexed: 11/29/2022]
Abstract
Matrix erosion is unavoidable during the release of poorly soluble drugs from gastric floating delivery system (GFDDS), which shortens the floating time and diminishes drug release. We fabricated a core-shell system (CSS) consisting of a low-density drug-loaded shell and a floating core using multi-nozzle semi-solid extrusion (SSE) 3D printing technology. The clarithromycin (CAM) loading capacity of the shell was 81.7%. The floating core paste provided structural support during printing and formed a hollow structure in CAM CSS, which increased the buoyancy in the early stage of drug release. In addition, the floating core had numerous micro-airbags that swelled when the solution penetrated the core, and generated CO2. The micro-airbag structure and CO2 generation further increased the buoyancy of CSS. The CAM CSS achieved 74.5% (w/w) drug loading, 8 h sustained release, and immediate and prolonged floating (>10 h). This structure of CSS and floating core provide a novel perspective for constructing a stable gastric floating drug delivery system.
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Affiliation(s)
- Peihong Chen
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jinling Liu
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Kaijun Zhang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Dongzhen Huang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Siyu Huang
- Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Engineering Center of Topical Precision Drug Delivery System, Center for Drug Research and Development, Guangzhou 510006, China
| | - Qingchun Xie
- Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Engineering Center of Topical Precision Drug Delivery System, Center for Drug Research and Development, Guangzhou 510006, China
| | - Fan Yang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiaying Huang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Danqiao Fang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zeju Huang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhufen Lu
- Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Engineering Center of Topical Precision Drug Delivery System, Center for Drug Research and Development, Guangzhou 510006, China
| | - YanZhong Chen
- Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Engineering Center of Topical Precision Drug Delivery System, Center for Drug Research and Development, Guangzhou 510006, China.
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