Xueshan Jing, Huawei Chen, Xiaopeng Shang, Liwen Zhang, Song Zhao, Xinzhao Zhou, Xiaolin Liu, Zelinlan Wang, Yan Wang, Wenxin Du, Yurun Guo, Lei Jiang
{"title":"Photothermal-Electric Excited Droplet Multibehavioral Manipulation","authors":"Xueshan Jing, Huawei Chen, Xiaopeng Shang, Liwen Zhang, Song Zhao, Xinzhao Zhou, Xiaolin Liu, Zelinlan Wang, Yan Wang, Wenxin Du, Yurun Guo, Lei Jiang","doi":"10.1002/adfm.202410612","DOIUrl":null,"url":null,"abstract":"The light-excited droplet manipulation is crucial in diverse industrial and health domains, owning to the merits of real-time control and noncontact operation. However, strong driving forces and high-precision maneuverability for splitting or mixing are still the challenges. Here a novel concept of configurating pyroelectric crystal surface is put forward to carry out multifunctional manipulation of the droplet by optical-thermal-electrical effect. Dipole-like electric charge distribution is excited around the light spot to generate sharper inversion of electric field gradient and 10-fold stronger dielectrophoretic (DEP) force than conventional photopyroelectric approaches. Both the stable mode and metastable-oscillation mode are found and can be positively used to make on-demand sliding and inside mixing of droplets. Especially, various droplets with the surface tension ranging from 25.7 to 85.4 mN m<sup>−1</sup> can be split by light. The present droplet manipulation technique demonstrates its promising applications in cargo transportation, combinatorial chemistry and biomedical analysis.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":null,"pages":null},"PeriodicalIF":18.5000,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adfm.202410612","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The light-excited droplet manipulation is crucial in diverse industrial and health domains, owning to the merits of real-time control and noncontact operation. However, strong driving forces and high-precision maneuverability for splitting or mixing are still the challenges. Here a novel concept of configurating pyroelectric crystal surface is put forward to carry out multifunctional manipulation of the droplet by optical-thermal-electrical effect. Dipole-like electric charge distribution is excited around the light spot to generate sharper inversion of electric field gradient and 10-fold stronger dielectrophoretic (DEP) force than conventional photopyroelectric approaches. Both the stable mode and metastable-oscillation mode are found and can be positively used to make on-demand sliding and inside mixing of droplets. Especially, various droplets with the surface tension ranging from 25.7 to 85.4 mN m−1 can be split by light. The present droplet manipulation technique demonstrates its promising applications in cargo transportation, combinatorial chemistry and biomedical analysis.
期刊介绍:
Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week.
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