Direct writing concave structure on viscoelastic substrate for loading and releasing liquid on skin surface

Mengdi Ma; Rui Sun; Haiting Kang; Shuo Wang; Peng Jia; Yanlin Song; Jiazhen Sun

doi:10.1016/j.colsurfb.2023.113571

Direct writing concave structure on viscoelastic substrate for loading and releasing liquid on skin surface

Colloids Surf B Biointerfaces. 2023 Nov:231:113571. doi: 10.1016/j.colsurfb.2023.113571. Epub 2023 Oct 1.

Authors

Mengdi Ma¹, Rui Sun¹, Haiting Kang¹, Shuo Wang¹, Peng Jia¹, Yanlin Song², Jiazhen Sun³

Affiliations

¹ Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
² Xiangfu Laboratory, Building 5, No. 828 Zhongxing Road, Xitang Town, Jiashan, Jiaxing, Zhejiang 314102, China; Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.
³ Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, State Key Laboratory of Biobased Material and Green Papermaking, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Department of Printing and Packaging Engineering, Shanghai Publishing and Printing College, Shanghai 200093, China. Electronic address: jiazhensun@qlu.edu.cn.

PMID: 37797469
DOI: 10.1016/j.colsurfb.2023.113571

Abstract

Droplet deposition on deformable matrix has a broad application prospect. Regular deposition and diffusion of droplet on the substrate is the key to prepare flexible concave structure. Direct writing technique is an advanced method for depositing ink droplet on various substrates, which could produce a variety of deposition forms. Meanwhile, direct writing technique has the characteristics of simplicity, convenience and strong controllability. In this work, patterned concave structure was fabricated with viscoelastic substrate by direct writing technology, depositing behavior of ink droplet, formation condition and shape control of concave structure were studied with viscoelastic substrate, and practical application of the patterned concave structure was explored in loading and releasing liquid on skin surface. This study provides an efficient method for the preparation and application of controllable concave surface.

Keywords: Concave structure; Direct writing technique; Ink droplet; Loading and releasing liquid; Viscoelastic substrate.

MeSH terms

Diffusion
Writing*