{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:17:09Z","timestamp":1760145429793,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T00:00:00Z","timestamp":1722297600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Tianjin Health Science and Technology Project","award":["TJWJ2022XK030"],"award-info":[{"award-number":["TJWJ2022XK030"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>The clinical diagnosis of a malignant pleural effusion (MPE) is still based on the detection of tumor cells in the pleural effusion. The question of how to improve the efficiency and accuracy of detecting an MPE still remains. This study explores the use of microfluidic technology to concentrate cells in an MPE and achieved the detection of the cell marker TPN in the microarray capture area. TPN is a mitochondria-specific bio-probe that can identify tumor cells on the basis of differences in the mitochondrial potential. First, we designed a microfluidic chip to analyze its performance. The results show that when the total flow rate of the injected chip was 12 mL\/h and the volume ratio of cell separation liquid to cell suspension was 1:1, the target cells (A549, MCF-7, and Hela) were enriched and the purity was improved to 98.7\u201399.3%. Finally, an MPE from cancer patients was used to detect the chip\u2019s ability to isolate and enrich tumor cells. Furthermore, the fluorescent identification of the TPN within the tumor cells was simultaneously achieved on the microfluidic chip. In conclusion, the potential to improve the efficiency of the clinical diagnosis of MPEs is provided by the chip structure and analysis conditions explored in this study.<\/jats:p>","DOI":"10.3390\/mi15080981","type":"journal-article","created":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T15:26:53Z","timestamp":1722526013000},"page":"981","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Research on the Method of Detecting TPN-Labeled Tumor Cells in Pleural Effusion Based on the Microfluidic Chip"],"prefix":"10.3390","volume":"15","author":[{"given":"Xiaoyi","family":"Xun","sequence":"first","affiliation":[{"name":"School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuang","family":"Song","sequence":"additional","affiliation":[{"name":"National Clinical Research Center for Cancer, Beijing 101399, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yiran","family":"Luan","sequence":"additional","affiliation":[{"name":"School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoyue","family":"Long","sequence":"additional","affiliation":[{"name":"Department of Laboratory, Tianjin Huanhu Hospital, Tianjin 300350, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peilan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Laboratory, Tianjin Huanhu Hospital, Tianjin 300350, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuqun","family":"Zheng","sequence":"additional","affiliation":[{"name":"School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8017-5403","authenticated-orcid":false,"given":"Xuguo","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"230145","DOI":"10.1183\/20734735.0145-2023","article-title":"Malignant pleural disease","volume":"19","author":"Piggott","year":"2023","journal-title":"Breathe"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Zhao, Y., Yu, L., Wang, L., Wu, Y., Chen, H., Wang, Q., and Wu, Y. 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