A Dual-Channel Microfluidic Chip for Single Tobacco Protoplast Isolation and Dynamic Capture

Autor: Huali Zhang, Qianqian Geng, Zhanghua Sun, Xiaoxiang Zhong, Ying Yang, Shuangyu Zhang, Ying Li, Yali Zhang, Lijun Sun
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Micromachines, Vol 13, Iss 12, p 2109 (2022)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi13122109
Popis: Protoplasts are widely used in gene function verification, subcellular localization, and single-cell sequencing because of their complete physiological activities. The traditional methods based on tissues and organs cannot satisfy the requirement. Therefore, the isolation and capture of a single protoplast are most important to these studies. In this study, a dual-channel microfluidic chip based on PDMS with multi-capture cavities was designed. The design theory of the dual-channel microfluidic chip’s geometry was discussed. The capture mechanism of the single cell in a dual-channel microfluidic chip was studied by simulation analysis. Our results showed that a single polystyrene microsphere or tobacco protoplast was successfully isolated and trapped in this chip. The capture efficiency of the chip was 83.33% for the single tobacco protoplast when the inlet flow rate was 0.75 μL/min. In addition, the dynamic capture of the polystyrene microsphere and tobacco protoplasts was also presented. Overall, our study not only provided a new strategy for the subsequent high throughput single protoplast research, but also laid a theoretical foundation for the capture mechanism of the single cell.
Databáze: Directory of Open Access Journals