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Zhang H, Lv X, Huang B, Cheng C, Zhang Z, Zhang Z, Fang W, Zhang H, Chen R, Huang Y, Chen H. In Situ Regeneration of Silicon Microring Biosensors Coated with Parylene C. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:504-513. [PMID: 34965120 DOI: 10.1021/acs.langmuir.1c02914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Optical biosensors support disease diagnostic applications, offering high accuracy and sensitivity due to label-free detection and their optical resonance enhancement. However, optical biosensors based on noble metal nanoparticles and precise micro-electromechanical system technology are costly, which is an obstacle for their applications. Here, we proposed a biosensor reuse method with nanoscale parylene C film, taking the silicon-on-insulator microring resonator biosensor as an example. Parylene C can efficiently adsorb antibody by one-step modification without any surface treatment, which simplifies the antibody modification process of sensors. Parylene C (20 nm thick) was successfully coated on the surface of the microring to modify anti-carcinoembryonic antigen (anti-CEA) and specifically detect CEA. After sensing, parylene C was successfully removed without damaging the sensing surface for the sensor reusing. The experimental results demonstrate that the sensing response did not change significantly after the sensor was reused more than five times, which verifies the repeatability and reliability of the reusable method by using parylene C. This framework can potentially reduce the cost of biosensors and promote their further applications.
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Affiliation(s)
- Huan Zhang
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoqing Lv
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Beiju Huang
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Chuantong Cheng
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zan Zhang
- School of Electronic and Control Engineering, Chang'an University, Xi'an 710064, China
| | - Zanyun Zhang
- School of Electronical and Electronic Engineering, Tiangong University, Tianjin 300387, China
| | - Weihao Fang
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hengjie Zhang
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Run Chen
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yulong Huang
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongda Chen
- State Key Laboratory on Integrated Optoelelctronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
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Zhang L, Wei M, Shao L, Li M, Dai W, Cui Y, Li Z, Zhang C, Wang W. Enhanced parylene-C fluorescence as a visual marker for neuronal electrophysiology applications. LAB ON A CHIP 2018; 18:3539-3549. [PMID: 30406244 DOI: 10.1039/c8lc00804c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Parylene-C is a popular polymer material in biomedical applications, with excellent physicochemical properties and microfabrication capability. Like many aromatic polymers, parylene-C also has autofluorescence, which was usually taken as a negative background noise in biomedical detection studies. However, the fluorescence intensity of thin-film (<1 μm) parylene-C was relatively weak, which may be a big limitation in visualization. In this work, we reported a simple annealing method to significantly enhance the fluorescence and achieve sufficient intensity as a visual marker. We studied the behaviors and mechanisms of the enhanced parylene-C fluorescence, then verified the feasibility and reliability of parylene-C for preparing fluorescent pipettes in targeted neuronal electrophysiology, where fluorescent guidance was strongly needed. The powerful parylene-C fabrication technique enables a precisely-controlled conformal coating along with a mass production capability, which further resulted in high-quality electrophysiological recordings of both cultured hippocampal neurons and acute hippocampal brain slices. Moreover, the enhanced parylene-C fluorescence can also be applied in more general biological operations, such as designable fluorescent micro-patterns for visualization in broader biomedical fields.
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Affiliation(s)
- Lingqian Zhang
- Institute of Microelectronics, Peking University, Beijing, 100871, China. and R&D Center of Healthcare Electronics, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Mengping Wei
- Department of Neurobiology, Capital Medical University, Beijing, 100069, China and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, 100871, China.
| | - Linbo Shao
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Mingli Li
- Institute of molecular and medicine, Peking University, Beijing, 100871, China
| | - Wangzhi Dai
- Institute of Microelectronics, Peking University, Beijing, 100871, China.
| | - Yaxuan Cui
- PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, 100871, China.
| | - Zhihong Li
- Institute of Microelectronics, Peking University, Beijing, 100871, China. and National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Beijing, 100871, China
| | - Chen Zhang
- Department of Neurobiology, Capital Medical University, Beijing, 100069, China and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, 100871, China.
| | - Wei Wang
- Institute of Microelectronics, Peking University, Beijing, 100871, China. and National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Beijing, 100871, China
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Gökçe O, Mercandetti C, Delamarche E. High-Content Optical Codes for Protecting Rapid Diagnostic Tests from Counterfeiting. Anal Chem 2018; 90:7383-7390. [DOI: 10.1021/acs.analchem.8b00826] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Onur Gökçe
- IBM Research, Zurich, 8803 Rüschlikon Switzerland
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Dupouy DG, Ciftlik AT, Teixidor J, Gijs MAM. Programming and use of Parylene C fluorescence as a quantitative on-chip reference. RSC Adv 2014. [DOI: 10.1039/c4ra08982k] [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] Open
Abstract
A large number of lab-on-a-chip applications use fluorescence for quantifying biological entities.
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Affiliation(s)
- Diego G. Dupouy
- Laboratory of Microsystems 2
- École Polytechnique Fédérale de Lausanne
- CH-1015 Lausanne, Switzerland
| | - Ata Tuna Ciftlik
- Laboratory of Microsystems 2
- École Polytechnique Fédérale de Lausanne
- CH-1015 Lausanne, Switzerland
| | - Joan Teixidor
- Laboratory of Microsystems 2
- École Polytechnique Fédérale de Lausanne
- CH-1015 Lausanne, Switzerland
| | - Martin A. M. Gijs
- Laboratory of Microsystems 2
- École Polytechnique Fédérale de Lausanne
- CH-1015 Lausanne, Switzerland
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