title: Production of thick uniform-coating films containing rectorite on nanofibers through the use of an automated coating machine.
abstract: When an efficient automated coating machine is used to process layer-by-layer (LBL) deposited nanofibrous mats, it causes an obvious planar effect on the surface of the mats, which can be eliminated through ultimate immersion. During this process, chitosan (CS) - rectorite (REC) intercalated composite films are built on the surface of cellulose acetate (CA) nanofibrous mats by a coating machine. Then, the immersion process is utilized to allow positively charged CS or CS-REC intercalated composites to uniformly assemble on the surface of negatively charged CA nanofibers. An investigation into the morphology of the resultant scaffolds confirms that the uniquely small pore size, high specific surface area and typically three-dimensional (3D) structure of nanofibrous mats remain present. The results of Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS) indicate that it is feasible to assemble nanofibrous mats using a coating machine. The intercalated structure of CS-REC is confirmed by the results of small-angle X-ray diffraction (SAXRD) and wide-angle X-ray diffraction (WAXRD). The results of the cell experiment and antibacterial test demonstrate that the addition of REC not only has little impact on the cytocompatibility of the mats but also enhances their ability to inhibit bacteria.
authors: School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China; Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
authors: Yang
authors: Y
authors: Wu
authors: Department of Plastic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China.
authors: Xueyong
authors: X
authors: Li
authors: Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
authors: Xiaowen
authors: X
authors: Shi
authors: Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
authors: Yingfei
authors: Y
authors: Zhan
authors: Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
authors: Hu
authors: H
authors: Tu
authors: Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
authors: Yumin
authors: Y
authors: Du
authors: Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China. Electronic address: hbdeng@whu.edu.cn.
authors: Hongbing
authors: H
authors: Deng
authors: School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China. Electronic address: jianglinbin@126.com.
authors: Linbin
authors: L
authors: Jiang
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D057205:Automation, Laboratory; D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry; D048271:Chitosan / Q000737:chemistry*; D015169:Colony Count, Microbial; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D008567:Membranes, Artificial; D008903:Minerals / Q000737:chemistry / Q000494:pharmacology*; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D000538:Aluminum Silicates; D000900:Anti-Bacterial Agents; D008567:Membranes, Artificial; D008903:Minerals; C546376:rectorite; C005062:acetylcellulose; D002482:Cellulose; D048271:Chitosan
keywords: Automated coating machine; Chitosan; Immersion; Layer-by-layer assembly; Rectorite