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Ma D, Qian S, Zhou S, Bian D. Fabrication and Characterization of Polyelectrolyte Coatings by Polymerization and Co-Deposition of Acrylic Acid Using the Dopamine in Weak Acid Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:10256-10264. [PMID: 35951557 DOI: 10.1021/acs.langmuir.2c01528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Existing medical materials (such as silicone rubber, glass slides, etc.) fail to meet the functional requirements of biosensing, cell culture, and drug delivery due to their poor wettability. The preparation of polyelectrolyte coatings with excellent wettability and protein adsorption helps broaden the application of medical materials. Poly(acrylic acid) (PAA) is a common polyelectrolyte with stronger protein adsorption, but the existing methods for obtaining PAA coating have certain shortcomings to limit their industrial applications. In this study, dopamine (DA) was used to polymerize and co-deposit acrylic acid (AA) in weak acid solution to functionalize the surface of materials, and the effects of different mass ratios of DA/AA on the wettability and protein adsorption of the coating were deeply investigated. The results demonstrate that PDA/PAA coating is successfully prepared on the surface of four substrates and greatly reduces the water contact angle of these surfaces. Moreover, these coatings show excellent protein adsorption, and the amount of adsorbed protein on the coated QCM chip is increased by 57.74% than the uncoated QCM chip. In addition, the coating has a certain pH responsiveness, and its wettability and protein adsorption are closely related to the pH of the solution. The preparation strategy proposed is simple and substrate-independent, which provides valuable insights into the application of the one-step polymerization and co-deposition strategy under weak acid conditions.
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Affiliation(s)
- Deke Ma
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shanhua Qian
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shuaishuai Zhou
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Da Bian
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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Mei Y, Li L, Chen N, Zhong C, Hu W. A microwell array structured surface plasmon resonance imaging gold chip for high-performance label-free immunoassay. Analyst 2020; 145:6395-6400. [PMID: 32744544 DOI: 10.1039/d0an01169j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surface plasmon resonance imaging (SPRi) offers a compelling method for high-throughput, real-time, and label-free biomolecular interaction studies and immunoassays, but its performance suffers from limited intrinsic sensitivity and low-contrast SPRi images. Herein we report a high-performance SPRi chip featuring patterned microwell array constructed by photolithography of adhesive polydopamine (PDA) thin film on conventional gold chip. The chip allows for the facile construction of region-defined sensing array on its surface with improved intrinsic SPRi sensitivity due to the intensified surface plasmon wave (SPW) in the microwells. The immunoassay performance of the as-designed SPRi chip is evaluated by using anti-ochratoxin A (anti-OTA) monoclonal antibody as a model target. The results show that this microwell array structured gold chip exhibits ca. 18%-32% higher signal intensity than the conventional gold chip when detecting anti-OTA at different concentrations, and the noise remains at the same level, showing enhanced intrinsic sensitivity. Meanwhile, this microwell-structured chip affords clear and high-contrast SPRi images with well-defined sensing areas, which greatly facilitates the extraction and quantitative analysis of detection signals while efficiently suppressing the disturbance from background areas.
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Affiliation(s)
- Yihong Mei
- Institute for Clean Energy & Advanced Materials, School of Materials & Energy, Southwest University, 2 Rd Tiansheng, Beibei, Chongqing 404100, China.
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Zhou YN, Li JJ, Wu YY, Luo ZH. Role of External Field in Polymerization: Mechanism and Kinetics. Chem Rev 2020; 120:2950-3048. [PMID: 32083844 DOI: 10.1021/acs.chemrev.9b00744] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The past decades have witnessed an increasing interest in developing advanced polymerization techniques subjected to external fields. Various physical modulations, such as temperature, light, electricity, magnetic field, ultrasound, and microwave irradiation, are noninvasive means, having superb but distinct abilities to regulate polymerizations in terms of process intensification and spatial and temporal controls. Gas as an emerging regulator plays a distinctive role in controlling polymerization and resembles a physical regulator in some cases. This review provides a systematic overview of seven types of external-field-regulated polymerizations, ranging from chain-growth to step-growth polymerization. A detailed account of the relevant mechanism and kinetics is provided to better understand the role of each external field in polymerization. In addition, given the crucial role of modeling and simulation in mechanisms and kinetics investigation, an overview of model construction and typical numerical methods used in this field as well as highlights of the interaction between experiment and simulation toward kinetics in the existing systems are given. At the end, limitations and future perspectives for this field are critically discussed. This state-of-the-art research progress not only provides the fundamental principles underlying external-field-regulated polymerizations but also stimulates new development of advanced polymerization methods.
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Affiliation(s)
- Yin-Ning Zhou
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Jin Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yi-Yang Wu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zheng-Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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4
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Optical methods for studying local electrochemical reactions with spatial resolution: A critical review. Anal Chim Acta 2019; 1074:1-15. [DOI: 10.1016/j.aca.2019.02.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 11/19/2022]
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Liu Q, Wang X, Benedict A, Janibekyan L, Su SW, Wang Y, Zhou F. Surface Plasmon Resonance Coupled with Potential‐step Chronoamperometry: Theory and Applications for Quantitative Measurements of Electrodeposited Thin Films. ELECTROANAL 2019. [DOI: 10.1002/elan.201900006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qinghua Liu
- College of Chemistry and Chemical EngineeringCentral South University Changsha, Hunan, Human P. R. China 410083
- Institute of Surface Analysis and Chemical BiologyUniversity of Jinan Jinan, Shandong P. R. China 250022
| | - Xiaoying Wang
- College of Chemistry and Chemical EngineeringCentral South University Changsha, Hunan, Human P. R. China 410083
- Institute of Surface Analysis and Chemical BiologyUniversity of Jinan Jinan, Shandong P. R. China 250022
| | - Andrew Benedict
- Department of Chemistry and BiochemistryCalifornia State University Los Angeles, California 90032 U.S.A
| | - Lusine Janibekyan
- Department of Chemistry and BiochemistryCalifornia State University Los Angeles, California 90032 U.S.A
| | - Stephanie Wong Su
- Department of Chemistry and BiochemistryCalifornia State University Los Angeles, California 90032 U.S.A
| | - Yixian Wang
- Department of Chemistry and BiochemistryCalifornia State University Los Angeles, California 90032 U.S.A
| | - Feimeng Zhou
- Institute of Surface Analysis and Chemical BiologyUniversity of Jinan Jinan, Shandong P. R. China 250022
- Department of Chemistry and BiochemistryCalifornia State University Los Angeles, California 90032 U.S.A
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Weng YH, Xu LT, Chen M, Zhai YY, Zhao Y, Ghorai SK, Pan XH, Cao SH, Li YQ. In Situ Monitoring of Fluorescent Polymer Brushes by Angle-Scanning Based Surface Plasmon Coupled Emission. ACS Macro Lett 2019; 8:223-227. [PMID: 35619434 DOI: 10.1021/acsmacrolett.8b00882] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Fluorescent polymers have attracted interest in many fields such as sensing, diagnostics, imaging, and organic electronic devices. Real-time techniques to monitor and understand the polymerization process are important for obtaining controllable fluorescence polymers. We present a new technique to in situ monitor the growth process of fluorescent polymer brushes by using angle-scanning based surface plasmon coupled emission (AS-SPCE) approach during electrochemically mediated atom-transfer radical polymerization. The polymer thickness was determined by modeling the location of SPCE emission angle(s) with theoretical calculation. The advantages of unique angle distribution patterns, thickness dependence and effective background rejection of AS-SPCE guarantee the success in the real-time investigation for controllable fabrication of fluorescent polymers.
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Affiliation(s)
- Yu-Hua Weng
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Lin-Tao Xu
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Min Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yan-Yun Zhai
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yan Zhao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Shyamal Kr Ghorai
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Xiao-Hui Pan
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Shuo-Hui Cao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
- Department of Electronic Science, Xiamen University, Xiamen 361005, People’s Republic of China
- Shenzhen Research Institute of Xiamen University, Shenzhen 518000, People’s Republic of China
| | - Yao-Qun Li
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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Single-layer graphene-coated gold chip for electrochemical surface plasmon resonance study. Anal Bioanal Chem 2018; 411:4577-4585. [DOI: 10.1007/s00216-018-1456-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/26/2018] [Accepted: 10/25/2018] [Indexed: 12/11/2022]
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8
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Pan X, Fantin M, Yuan F, Matyjaszewski K. Externally controlled atom transfer radical polymerization. Chem Soc Rev 2018; 47:5457-5490. [DOI: 10.1039/c8cs00259b] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
ATRP can be externally controlled by electrical current, light, mechanical forces and various chemical reducing agents. The mechanistic aspects and preparation of polymers with complex functional architectures and their applications are critically reviewed.
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Affiliation(s)
- Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Marco Fantin
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Fang Yuan
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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