|
1
|
Zheng Z, Zhang Y, Xing J, Li X, Zhu Z, Ye M, Shen S, Xu RX. Combinatory electric-field-guided deposition for spatial microparticles patterning. Mater Today Bio 2024; 28:101207. [PMID: 39285943 PMCID: PMC11403263 DOI: 10.1016/j.mtbio.2024.101207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/19/2024] Open
Abstract
Spatial deposition and patterning of microparticles are crucial in chemistry, medicine, and biology. Existing technologies like electric force manipulation, despite precise trajectory control, struggle with complex and personalized patterns. Key challenges include adjusting the quantity of particles deposited in different areas and accurately depositing particles in non-continuous patterns. Here, we present a rational process termed combinatory electric-field-guided deposition (CED) for achieving spatially regulated microparticle deposition on insulative substrates. This process involves coating the substrates with insulating materials like PVP and positioning it on a relief-patterned negative electrode. The negative electric field generated by the electrode attracts microparticles, while the positive surface charges on the substrates repel microparticles, resulting in the formation of a potential well over the electrode area. Consequently, this configuration enables precise control over microparticle deposition without the need for direct contact with the substrate's surface, simplifying the process of switching masks to meet varying microparticle deposition requirements. Furthermore, we demonstrate the customization of patterned microparticles on superhydrophobic coatings to regulate cell distribution, as well as the successful loading of drug-laden microparticles onto antibacterial bandages to match the areas of skin lesions. These applications underscore the versatility of CED across chemical, medical, and bioengineering domains.
Collapse
Affiliation(s)
- Zhiyuan Zheng
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Zhang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
- Department of Rehabilitation Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Jinyu Xing
- Institute of Advanced Technology, University of Science and Technology of China, Hefei, 230026, China
| | - Xin Li
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
| | - Min Ye
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Shuwei Shen
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| | - Ronald X Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, 215000, China
| |
Collapse
|
|
2
|
Li D, Yu W, Zhou T, Li M, Song Y, Li D. Conductivity-difference-enhanced DC dielectrophoretic particle separation in a microfluidic chip. Analyst 2022; 147:1106-1116. [DOI: 10.1039/d1an02196f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conductivity-difference-enhanced DC dielectrophoretic particle separation in a microfluidic chip. Two immiscible electrolyte solutions with different conductivities in microchannels.
Collapse
Affiliation(s)
- Deyu Li
- Department of Marine Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Weicheng Yu
- Department of Marine Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Teng Zhou
- Mechanical and Electrical Engineering College, Hainan University, Hai Kou, 570228, China
| | - Mengqi Li
- Department of Marine Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Yongxin Song
- Department of Marine Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Dongqing Li
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| |
Collapse
|