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Ma Z, Zhang Z, Lv X, Zhang H, Lu K, Su G, Huang B, Chen H. Dual sensitivity-enhanced microring resonance-based integrated microfluidic biosensor for Aβ 42 detection. Talanta 2024; 275:126111. [PMID: 38657362 DOI: 10.1016/j.talanta.2024.126111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 04/07/2024] [Accepted: 04/13/2024] [Indexed: 04/26/2024]
Abstract
Sensitive, accurate, and straightforward biosensors are pivotal in the battle against Alzheimer's disease, particularly in light of the escalating patient population. These biosensors enable early adjunctive diagnosis, thereby facilitating prompt intervention, alleviating socioeconomic burdens, and preserving individual well-being. In this study, we introduce the development of a highly sensitive add-drop dual-microring resonant microfluidic sensing chip boasting a sensitivity of 188.11 nm/RIU, marking a significant 20.7% enhancement over single microring systems. Leveraging ultra-thin Parylene C for streamlined antibody immobilization and non-destructive removal, this platform facilitates the precise quantification of the Alzheimer's disease biomarker Aβ42. Employing an immune sensing strategy that amplifies and captures antigen signals using Au-labeled antibodies, we achieve an exceptional limit of detection of 9.02 pg/mL. The designed microring-based microfluidic biosensor chip exhibits outstanding specificity and sensitivity for Aβ42 in serum samples, offering a promising avenue for the early adjunctive diagnosis of Alzheimer's disease.
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Affiliation(s)
- Zhengtai Ma
- Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Zan Zhang
- School of Electronic and Control Engineering, Chang'an University, Xi'an, China
| | - Xiaoqing Lv
- Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Huan Zhang
- Key Laboratory of Optoelectronics Technology, Ministry of Education, Beijing University of Technology, Beijing, China
| | - Kaiwei Lu
- Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Guoshuai Su
- Suzhou Institute of Microelectronics and Optoelectronics Integration, Suzhou, China; Suzhou Jiwei Photoelectric Co., Ltd, Suzhou, China
| | - Beiju Huang
- Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China.
| | - Hongda Chen
- Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
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2
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Xiao M, Lv S, Zhu C. Bacterial Patterning: A Promising Biofabrication Technique. ACS APPLIED BIO MATERIALS 2024. [PMID: 38408887 DOI: 10.1021/acsabm.4c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Bacterial patterning has emerged as a pivotal biofabrication technique in the biomedical field. In the past 2 decades, a diverse array of bacterial patterning approaches have been developed to enable the precise manipulation of the spatial distribution of bacterial patterns for various applications. Despite the significance of these advancements, there is a deficiency of review articles providing an overview of bacterial patterning technologies. In this mini-review, we systematically summarize the progress of bacterial patterning over the past 2 decades. This review commences with an elucidation of the definition and fundamental principles of bacterial patterning. Subsequently, we introduce the established bacterial patterning strategies, accompanied by discussions about the advantages and limitations of each approach. Furthermore, we showcase the biomedical applications of these strategies, highlighting their efficacy in spatial control of biofilms, biosensing, and biointervention. Finally, this mini-review is concluded with a summary and an outlook on future challenges and opportunities. It is anticipated that this mini-review can serve as a concise guide for those who are interested in this exciting and rapidly evolving research area.
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Affiliation(s)
- Minghui Xiao
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Functional Polymer Materials, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shuyi Lv
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Functional Polymer Materials, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chunlei Zhu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Functional Polymer Materials, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
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3
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Wang S, Zhou Y, Li Z. A microfluidic cover converts a standard 96-well plate into a mass-transport-controlled immunoassay system. BIOMICROFLUIDICS 2024; 18:014102. [PMID: 38249129 PMCID: PMC10798817 DOI: 10.1063/5.0183651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/01/2024] [Indexed: 01/23/2024]
Abstract
96-well microtiter plates, widely used in immunoassays, face challenges such as prolonged assay time and limited sensitivity due to the lack of analyte transport control. Orbital shakers, commonly employed to facilitate mass transport, offer limited improvements and can introduce assay inconsistencies. While microfluidic devices offer performance enhancements, their complexity and incompatibility with existing platforms limit their wide adoption. This study introduces a novel microfluidic 96-well cover designed to convert a standard 96-well plate to a mass-transport-controlled surface bioreactor. The cover employs microfluidic methods to enhance the diffusion flux of analytes toward the receptors immobilized on the well bottom. Both simulation and experimental results demonstrated that the cover significantly enhances the capture rate of analyte molecules, resulting in increased signal strength for various detection methods and a lower detection limit. The cover serves as an effective add-on to standard 96-well plates, offering enhanced assay performance without requiring modifications to existing infrastructure or reagents. This innovation holds promise for improving the efficiency and reliability of microtiter plate based immunoassays.
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Affiliation(s)
- Sheng Wang
- Department of Biomedical Engineering, The George Washington University, District of Columbia, 20052, USA
| | - You Zhou
- Department of Electrical and Computer Engineering, The George Washington University, District of Columbia, 20052, USA
| | - Zhenyu Li
- Department of Biomedical Engineering, The George Washington University, District of Columbia, 20052, USA
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Ma Z, Sun Z, Lv X, Chen H, Geng Y, Geng Z. Sensitivity-enhanced nanoplasmonic biosensor using direct immobilization of two engineered nanobodies for SARS-CoV-2 spike receptor-binding domain detection. SENSORS AND ACTUATORS. B, CHEMICAL 2023; 383:133575. [PMID: 36873859 PMCID: PMC9957344 DOI: 10.1016/j.snb.2023.133575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 02/19/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Sensitive, rapid, and easy-to-implement biosensors are critical in responding to highly contagious and fast-spreading severe acute respiratory syndrome coronavirus (SARS-CoV-2) mutations, enabling early infection screening for appropriate isolation and treatment measures to prevent the spread of the virus. Based on the sensing principle of localized surface plasmon resonance (LSPR) and nanobody immunological techniques, an enhanced sensitivity nanoplasmonic biosensor was developed to quantify the SARS-CoV-2 spike receptor-binding domain (RBD) in serum within 30 min. The lowest concentration in the linear range can be detected down to 0.01 ng/mL by direct immobilization of two engineered nanobodies. Both the sensor fabrication process and immune strategy are facile and inexpensive, with the potential for large-scale application. The designed nanoplasmonic biosensor achieved excellent specificity and sensitivity for SARS-CoV-2 spike RBD, providing a potential option for accurate early screening of the novel coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Zhengtai Ma
- State Key Laboratory for Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Zengchao Sun
- The Chinese Academy of Sciences Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoqing Lv
- State Key Laboratory for Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
| | - Hongda Chen
- State Key Laboratory for Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China
| | - Yong Geng
- The Chinese Academy of Sciences Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Zhaoxin Geng
- School of Information Engineering, Minzu University of China, Beijing, China
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5
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Wei Y, Zhang J, Yang X, Wang Z, Wang J, Qi H, Gao Q, Zhang C. Washing-free electrogenerated chemiluminescence magnetic microbiosensors based on target assistant proximity hybridization for multiple protein biomarkers. Anal Chim Acta 2023; 1253:340926. [PMID: 36965986 DOI: 10.1016/j.aca.2023.340926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/01/2023]
Abstract
This work reports washing-free electrogenerated chemiluminescence (ECL) magnetic microbiosensors based on target assistant proximity hybridization (TAPH) for multiple protein biomarkers for the first time. As a principle-of-proof, alpha-fetoprotein (AFP) was chosen as a model analyte, and biotin-DNA1 bound streptavidin-coated magnetic microbeads (MMB@SA⋅biotin-DNA1) were designed as the universal capture MMB, while the corresponding two antibodies tagged with DNA2 or DNA3 were utilized as hybrid recognition probes, and ruthenium complex-tagged DNA4-10A was designed as a universal ECL signal probe. When the capture MMB was added into the mixture solution (containing the analyte, hybrid recognition probes, signal probe and tri-n-propylamine), biocomplexes were formed on the MMB. After the resulting MMB was efficiently brought to the surface of a magnetic glassy carbon electrode (MGCE), ECL measurement was performed without a washing step, resulting in an increase in the ECL intensity. A model for ECL measuring the second-order rate constants of hybridization reactions on MMB was derived. It was found that the rate constants for hybridization reactions on MMB in rotating mode are 1.6-fold higher than those in shaking mode, and a suitable DNA length of the signal probe can improve the signal-to-noise ratio. The washing-free ECL method was developed for the determination of AFP with a much lower detection limit (LOD) of 0.04 ng mL-1. The developed flexible strategy has been extended to determine D-dimer with an LOD of 0.1 ng mL-1 and myoglobinglobin with an LOD of 1.1 ng mL-1. This work demonstrated that the proposed strategy of ECL TAPH on MMB at MGCE is a washing-free and flexible promising strategy, and can be extended to qualify other multiple protein biomarkers in real clinical assays.
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Affiliation(s)
- Yuxi Wei
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Jian Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Xiaolin Yang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Zimei Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Junxia Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China.
| | - Qiang Gao
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China
| | - Chengxiao Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, PR China.
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Jiang W, Ma Z, Cao F, Hu L, Bao L, Chang P, Xu C, Lv X, Xie Y. Label-free integrated microfluidic plasmonic biosensor from vertical-cavity surface-emitting lasers for SARS-CoV-2 receptor binding domain protein detection. OPTICS EXPRESS 2023; 31:12138-12149. [PMID: 37157379 DOI: 10.1364/oe.486605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The nanoplasmonic sensor of the nanograting array has a remarkable ability in label-free and rapid biological detection. The integration of the nanograting array with the standard vertical-cavity surface-emitting lasers (VCSEL) platform can achieve a compact and powerful solution to provide on-chip light sources for biosensing applications. Here, a high sensitivity and label-free integrated VCSELs sensor was developed as a suitable analysis technique for COVID-19 specific receptor binding domain (RBD) protein. The gold nanograting array is integrated on VCSELs to realize the integrated microfluidic plasmonic biosensor of on-chip biosensing. The 850 nm VCSELs are used as a light source to excite the localized surface plasmon resonance (LSPR) effect of the gold nanograting array to detect the concentration of attachments. The refractive index sensitivity of the sensor is 2.99 × 106 nW/RIU. The aptamer of RBD was modified on the surface of the gold nanograting to detect the RBD protein successfully. The biosensor has high sensitivity and a wide detection range of 0.50 ng/mL - 50 µg/mL. This VCSELs biosensor provides an integrated, portable, and miniaturized idea for biomarker detection.
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Cao Y, Wu N, Li HD, Xue JW, Wang R, Yang T, Wang JH. Efficient Pathogen Capture and Sensing Promoted by Dynamic Deformable Nanointerfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203962. [PMID: 36328708 DOI: 10.1002/smll.202203962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/08/2022] [Indexed: 06/16/2023]
Abstract
The M13 bacteriophage (M13 phage) has emerged as an attractive bionanomaterial due to its chemistry/gene modifiable feature and unique structures. Herein, a dynamic deformable nanointerface is fabricated taking advantage of the unique feature of the M13 phage for ultrasensitive detection of pathogens. PIII proteins at the tip of the M13 phage are genetically modified to display 6His peptide for site-specific anchoring onto Ni-NTA microbeads, whereas pVIII proteins along the side of the M13 phage are orderly arranged with thousands of aptamers and their complementary strands (c-apt). The flexible M13 nanofibers with rich recognition sites act as octopus tentacles, resulting in a 19-fold improvement in the capture affinity toward the target. The competitive binding of the target pathogen releases c-apts and initiates rolling circle amplification (RCA). The sway motion of M13 nanofibers accelerates the diffusion of c-apts, thus promoting RCA efficiency. Benefiting from the strengthened capture ability toward the target and the accelerated RCA process, three-orders of magnitude improvement in the sensitivity is achieved, with a detection limit of 8 cfu mL-1 for Staphylococcus aureus. The promoted capture ability and assay performance highlights the essential role of the deformable feature of the engineered interface. This may provide inspiration for the construction of more efficient reaction interfaces.
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Affiliation(s)
- Ying Cao
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Na Wu
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Hui-Da Li
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Jing-Wen Xue
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Rui Wang
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Ting Yang
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
| | - Jian-Hua Wang
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Box 332, Shenyang, 110819, China
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Mathur P, Fomitcheva Khartchenko A, Stavrakis S, Kaigala GV, deMello AJ. Quantifying Antibody Binding Kinetics on Fixed Cells and Tissues via Fluorescence Lifetime Imaging. Anal Chem 2022; 94:10967-10975. [PMID: 35895913 DOI: 10.1021/acs.analchem.2c01076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a method for monitoring spatially localized antigen-antibody binding events on physiologically relevant substrates (cell and tissue sections) using fluorescence lifetime imaging. Specifically, we use the difference between the fluorescence decay times of fluorescently tagged antibodies in free solution and in the bound state to track the bound fraction over time and hence deduce the binding kinetics. We make use of a microfluidic probe format to minimize the mass transport effects and localize the analysis to specific regions of interest on the biological substrates. This enables measurement of binding constants (kon) on surface-bound antigens and on cell blocks using model biomarkers. Finally, we directly measure p53 kinetics with differential biomarker expression in ovarian cancer tissue sections, observing that the degree of expression corresponds to the changes in kon, with values of 3.27-3.50 × 103 M-1 s-1 for high biomarker expression and 2.27-2.79 × 103 M-1 s-1 for low biomarker expression.
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Affiliation(s)
- Prerit Mathur
- Institute for Chemical and Bioengineering, Department of Chemistry & Applied Biosciences, Eidgenössische Technische Hochschule (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland.,IBM Research Europe─Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
| | - Anna Fomitcheva Khartchenko
- Institute for Chemical and Bioengineering, Department of Chemistry & Applied Biosciences, Eidgenössische Technische Hochschule (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland.,IBM Research Europe─Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
| | - Stavros Stavrakis
- Institute for Chemical and Bioengineering, Department of Chemistry & Applied Biosciences, Eidgenössische Technische Hochschule (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
| | - Govind V Kaigala
- IBM Research Europe─Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland.,School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Andrew J deMello
- Institute for Chemical and Bioengineering, Department of Chemistry & Applied Biosciences, Eidgenössische Technische Hochschule (ETH Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
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9
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Lemarchand J, Bridonneau N, Battaglini N, Carn F, Mattana G, Piro B, Zrig S, Noël V. Challenges, Prospects, and Emerging Applications of Inkjet-Printed Electronics: A Chemist's Point of View. Angew Chem Int Ed Engl 2022; 61:e202200166. [PMID: 35244321 DOI: 10.1002/anie.202200166] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 12/15/2022]
Abstract
Driven by the development of new functional inks, inkjet-printed electronics has achieved several milestones upon moving from the integration of simple electronic elements (e.g., temperature and pressure sensors, RFID antennas, etc.) to high-tech applications (e.g. in optoelectronics, energy storage and harvesting, medical diagnosis). Currently, inkjet printing techniques are limited by spatial resolution higher than several micrometers, which sets a redhibitorythreshold for miniaturization and for many applications that require the controlled organization of constituents at the nanometer scale. In this Review, we present the physico-chemical concepts and the equipment constraints underpinning the resolution limit of inkjet printing and describe the contributions from molecular, supramolecular, and nanomaterials-based approaches for their circumvention. Based on these considerations, we propose future trajectories for improving inkjet-printing resolution that will be driven and supported by breakthroughs coming from chemistry. Please check all text carefully as extensive language polishing was necessary. Title ok? Yes.
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Affiliation(s)
| | | | | | - Florent Carn
- Université de Paris, Laboratoire Matière et Systèmes Complexes CNRS, UMR 7057, 75013, Paris, France
| | | | - Benoit Piro
- Université de Paris, CNRS, ITODYS, 75013, Paris, France
| | - Samia Zrig
- Université de Paris, CNRS, ITODYS, 75013, Paris, France
| | - Vincent Noël
- Université de Paris, CNRS, ITODYS, 75013, Paris, France
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10
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Zhao W, Yan Y, Chen X, Wang T. Combining printing and nanoparticle assembly: Methodology and application of nanoparticle patterning. Innovation (N Y) 2022; 3:100253. [PMID: 35602121 PMCID: PMC9117940 DOI: 10.1016/j.xinn.2022.100253] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/24/2022] [Indexed: 11/18/2022] Open
Abstract
Functional nanoparticles (NPs) with unique photoelectric, mechanical, magnetic, and chemical properties have attracted considerable attention. Aggregated NPs rather than individual NPs are generally required for sensing, electronics, and catalysis. However, the transformation of functional NP aggregates into scalable, controllable, and affordable functional devices remains challenging. Printing is a promising additive manufacturing technology for fabricating devices from NP building blocks because of its capabilities for rapid prototyping and versatile multifunctional manufacturing. This paper reviews recent advances in NP patterning based on the combination of self-assembly and printing technologies (including two-, three-, and four-dimensional printing), introduces the basic characteristics of these methods, and discusses various fields of NP patterning applications. Nanoparticles (NPs) printing assembly is a good solution for patterned devices NPs assembly can be combined with 2D, 3D, and 4D printing technologies A variety of ink-dispersed NPs are available for printing assembly NPs printing assembly technology is applied for nanosensing, energy storage, photodetector
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Affiliation(s)
- Weidong Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Life and Health Research Institute, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yanling Yan
- National Engineering Research Center for Advanced Polymer Processing Technology, College of Materials Science and Engineering, Henan Province Industrial Technology Research Institute of Resources and Materials, Key Laboratory of Advanced Material Processing & Mold (Ministry of Education), Zhengzhou University, Zhengzhou 450002, China
- Life and Health Research Institute, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xiangyu Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Life and Health Research Institute, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Life and Health Research Institute, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China
- Corresponding author
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11
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Lemarchand J, Bridonneau N, Battaglini N, Carn F, Mattana G, Piro B, Zrig S, NOEL V. Challenges and Prospects of Inkjet Printed Electronics Emerging Applications – a Chemist point of view. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Florent Carn
- Universite de Paris UFR Physique Physique FRANCE
| | | | | | | | - Vincent NOEL
- Universite Paris Diderot ITODYS 13 rue J de Baif 75013 Paris FRANCE
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12
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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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13
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Pereiro I, Kartchenko AF, Lovchik RD, Kaigala GV. Simple add-on devices to enhance the efficacy of conventional surface immunoassays implemented on standard labware. Analyst 2022; 147:2040-2047. [DOI: 10.1039/d2an00214k] [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
We propose microfluidic add-ons easily placed on standard assay labware such as microwells and slides to enhance the kinetics of immunoassays. The devices are compatible with mass production, well-established assay protocols and automated platforms.
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Affiliation(s)
- Iago Pereiro
- IBM Research Europe – Zurich, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
| | | | - Robert D. Lovchik
- IBM Research Europe – Zurich, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
| | - Govind V. Kaigala
- IBM Research Europe – Zurich, Säumerstrasse 4, Rüschlikon, CH-8803, Switzerland
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14
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Zhao L, Zhao C, Zhou J, Ji H, Qin Y, Li G, Wu L, Zhou X. Conjugated Polymers-based Luminescent Probes for Ratiometric Detection of Biomolecules. J Mater Chem B 2022; 10:7309-7327. [DOI: 10.1039/d2tb00937d] [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
Accurate monitoring of the biomolecular changes in biological and physiological environments is of great significance for pathogenesis, development, diagnosis and treatment of diseases. Compared with traditional luminescent probes on the...
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15
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Reis NM, Needs SH, Jegouic SM, Gill KK, Sirivisoot S, Howard S, Kempe J, Bola S, Al-Hakeem K, Jones IM, Prommool T, Luangaram P, Avirutnan P, Puttikhunt C, Edwards AD. Gravity-Driven Microfluidic Siphons: Fluidic Characterization and Application to Quantitative Immunoassays. ACS Sens 2021; 6:4338-4348. [PMID: 34854666 PMCID: PMC8728737 DOI: 10.1021/acssensors.1c01524] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/27/2021] [Indexed: 12/27/2022]
Abstract
A range of biosensing techniques including immunoassays are routinely used for quantitation of analytes in biological samples and available in a range of formats, from centralized lab testing (e.g., microplate enzyme-linked immunosorbent assay (ELISA)) to automated point-of-care (POC) and lateral flow immunochromatographic tests. High analytical performance is intrinsically linked to the use of a sequence of reagent and washing steps, yet this is extremely challenging to deliver at the POC without a high level of fluidic control involving, e.g., automation, fluidic pumping, or manual fluid handling/pipetting. Here we introduce a microfluidic siphon concept that conceptualizes a multistep ″dipstick″ for quantitative, enzymatically amplified immunoassays using a strip of microporous or microbored material. We demonstrated that gravity-driven siphon flow can be realized in single-bore glass capillaries, a multibored microcapillary film, and a glass fiber porous membrane. In contrast to other POC devices proposed to date, the operation of the siphon is only dependent on the hydrostatic liquid pressure (gravity) and not capillary forces, and the unique stepwise approach to the delivery of the sample and immunoassay reagents results in zero dead volume in the device, no reagent overlap or carryover, and full start/stop fluid control. We demonstrated applications of a 10-bore microfluidic siphon as a portable ELISA system without compromised quantitative capabilities in two global diagnostic applications: (1) a four-plex sandwich ELISA for rapid smartphone dengue serotype identification by serotype-specific dengue virus NS1 antigen detection, relevant for acute dengue fever diagnosis, and (2) quantitation of anti-SARS-CoV-2 IgG and IgM titers in spiked serum samples. Diagnostic siphons provide the opportunity for high-performance immunoassay testing outside sophisticated laboratories, meeting the rapidly changing global clinical and public health needs.
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Affiliation(s)
- Nuno M. Reis
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Sarah H. Needs
- Reading
School of Pharmacy, University of Reading,
Whiteknights Campus, Reading, RG6 6AD United Kingdom
| | - Sophie M. Jegouic
- Reading
School of Pharmacy, University of Reading,
Whiteknights Campus, Reading, RG6 6AD United Kingdom
- School
of Biological Sciences, University of Reading,
Whiteknights Campus, Reading, RG6 6AJ, United Kingdom
| | - Kirandeep K. Gill
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Sirintra Sirivisoot
- Dengue
Hemorrhagic Fever Research Unit, Office for Research and Development,
Faculty of Medicine Siriraj Hospital, Mahidol
University, Bangkok, 10700, Thailand
| | - Scott Howard
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Jack Kempe
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Shaan Bola
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Kareem Al-Hakeem
- Department
of Chemical Engineering and Centre for Biosensors, Biodevices and
Bioelectronics (C3Bio), University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Ian M. Jones
- School
of Biological Sciences, University of Reading,
Whiteknights Campus, Reading, RG6 6AJ, United Kingdom
| | - Tanapan Prommool
- Molecular
Biology of Dengue and Flaviviruses Research Team, Medical Molecular
Biotechnology Research Group, National Center for Genetic Engineering
and Biotechnology, National Science and
Technology Development Agency, Pathum Thani, 73170, Thailand
| | - Prasit Luangaram
- Molecular
Biology of Dengue and Flaviviruses Research Team, Medical Molecular
Biotechnology Research Group, National Center for Genetic Engineering
and Biotechnology, National Science and
Technology Development Agency, Pathum Thani, 73170, Thailand
| | - Panisadee Avirutnan
- Dengue
Hemorrhagic Fever Research Unit, Office for Research and Development,
Faculty of Medicine Siriraj Hospital, Mahidol
University, Bangkok, 10700, Thailand
- Molecular
Biology of Dengue and Flaviviruses Research Team, Medical Molecular
Biotechnology Research Group, National Center for Genetic Engineering
and Biotechnology, National Science and
Technology Development Agency, Pathum Thani, 73170, Thailand
- Siriraj Center
of Research Excellence in Dengue and Emerging Pathogens, Faculty of
Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Chunya Puttikhunt
- Dengue
Hemorrhagic Fever Research Unit, Office for Research and Development,
Faculty of Medicine Siriraj Hospital, Mahidol
University, Bangkok, 10700, Thailand
- Molecular
Biology of Dengue and Flaviviruses Research Team, Medical Molecular
Biotechnology Research Group, National Center for Genetic Engineering
and Biotechnology, National Science and
Technology Development Agency, Pathum Thani, 73170, Thailand
- Siriraj Center
of Research Excellence in Dengue and Emerging Pathogens, Faculty of
Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Alexander D. Edwards
- Reading
School of Pharmacy, University of Reading,
Whiteknights Campus, Reading, RG6 6AD United Kingdom
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16
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Delamarche E, Pereiro I, Kashyap A, Kaigala GV. Biopatterning: The Art of Patterning Biomolecules on Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9637-9651. [PMID: 34347483 DOI: 10.1021/acs.langmuir.1c00867] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Patterning biomolecules on surfaces provides numerous opportunities for miniaturizing biological assays; biosensing; studying proteins, cells, and tissue sections; and engineering surfaces that include biological components. In this Feature Article, we summarize the themes presented in our recent Langmuir Lecture on patterning biomolecules on surfaces, miniaturizing surface assays, and interacting with biointerfaces using three key technologies: microcontact printing, microfluidic networks, and microfluidic probes.
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Affiliation(s)
- Emmanuel Delamarche
- IBM Research Europe-Zurich, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
| | - Iago Pereiro
- IBM Research Europe-Zurich, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
| | - Aditya Kashyap
- IBM Research Europe-Zurich, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
| | - Govind V Kaigala
- IBM Research Europe-Zurich, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
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17
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Pereiro I, Fomitcheva Khartchenko A, Lovchik RD, Kaigala GV. Advection-Enhanced Kinetics in Microtiter Plates for Improved Surface Assay Quantitation and Multiplexing Capabilities. Angew Chem Int Ed Engl 2021; 60:20935-20942. [PMID: 34296491 DOI: 10.1002/anie.202107424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Indexed: 12/28/2022]
Abstract
Surface assays such as ELISA are pervasive in clinics and research and predominantly standardized in microtiter plates (MTP). MTPs provide many advantages but are often detrimental to surface assay efficiency due to inherent mass transport limitations. Microscale flows can overcome these and largely improve assay kinetics. However, the disruptive nature of microfluidics with existing labware and protocols has narrowed its transformative potential. We present WellProbe, a novel microfluidic concept compatible with MTPs. With it, we show that immunoassays become more sensitive at low concentrations (up to 9× signal improvement in 12× less time), richer in information with 3-4 different kinetic conditions, and can be used to estimate kinetic parameters, minimize washing steps and non-specific binding, and identify compromised results. We further multiplex single-well assays combining WellProbe's kinetic regions with tailored microarrays. Finally, we demonstrate our system in a context of immunoglobulin subclass evaluation, increasingly regarded as clinically relevant.
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Affiliation(s)
- Iago Pereiro
- IBM Research-Europe, Säumerstrasse 4, 8803, Rüschlikon, Switzerland
| | | | - Robert D Lovchik
- IBM Research-Europe, Säumerstrasse 4, 8803, Rüschlikon, Switzerland
| | - Govind V Kaigala
- IBM Research-Europe, Säumerstrasse 4, 8803, Rüschlikon, Switzerland
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18
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Pereiro I, Fomitcheva Khartchenko A, Lovchik RD, Kaigala GV. Advection‐Enhanced Kinetics in Microtiter Plates for Improved Surface Assay Quantitation and Multiplexing Capabilities. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Iago Pereiro
- IBM Research—Europe Säumerstrasse 4 8803 Rüschlikon Switzerland
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19
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Salva ML, Rocca M, Niemeyer CM, Delamarche E. Methods for immobilizing receptors in microfluidic devices: A review. MICRO AND NANO ENGINEERING 2021. [DOI: 10.1016/j.mne.2021.100085] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Pereiro I, Aubert J, Kaigala GV. Micro-scale technologies propel biology and medicine. BIOMICROFLUIDICS 2021; 15:021302. [PMID: 33948133 PMCID: PMC8081554 DOI: 10.1063/5.0047196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/05/2021] [Indexed: 05/05/2023]
Abstract
Historically, technology has been central to new discoveries in biology and progress in medicine. Among various technologies, microtechnologies, in particular, have had a prominent role in the revolution experienced by the life sciences in the last few decades, which will surely continue in the years to come. In this Perspective, we illustrate how microtechnologies, with a focus on microfluidics, have evolved in trends/waves to tackle the boundary of knowledge in the life sciences. We provide illustrative examples of technology-enabled biological breakthroughs and their current and future use in clinics. Finally, we take a closer look at the translational process to understand why the incorporation of new micro-scale technologies in medicine has been comparatively slow so far.
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21
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Antibody Printing Technologies. Methods Mol Biol 2020. [PMID: 33237416 DOI: 10.1007/978-1-0716-1064-0_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Antibody microarrays are routinely employed in the lab and in the clinic for studying protein expression, protein-protein, and protein-drug interactions. The microarray format reduces the size scale at which biological and biochemical interactions occur, leading to large reductions in reagent consumption and handling times while increasing overall experimental throughput. Specifically, antibody microarrays, as a platform, offer a number of different advantages over traditional techniques in the areas of drug discovery and diagnostics. While a number of different techniques and approaches have been developed for creating micro and nanoscale antibody arrays, issues relating to sensitivity, cost, and reproducibility persist. The aim of this review is to highlight current state-of the-art techniques and approaches for creating antibody arrays by providing latest accounts of the field while discussing potential future directions.
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22
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Mathur P, Fomitcheva Khartchenko A, deMello AJ, Kaigala GV. Open Space Diffusive Filter for Simultaneous Species Retrieval and Separation. Anal Chem 2020; 92:11548-11552. [PMID: 32635720 DOI: 10.1021/acs.analchem.0c02176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We present a novel method for the local retrieval of surface bound species and their rapid in-line separation using an open space microfluidic device. Separation can be performed in less than 30 s using the difference in diffusivities within parallel microfluidic flows. As a proof-of-principle, we report the rapid and efficient filtration of polystyrene beads from small molecules and surface bound red blood cells from dimethyl sulfoxide for antigen typing.
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Affiliation(s)
- Prerit Mathur
- IBM Research Europe, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland.,Institute for Chemical and Bioengineering, Dept. of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule (ETH-Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
| | - Anna Fomitcheva Khartchenko
- IBM Research Europe, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland.,Institute for Chemical and Bioengineering, Dept. of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule (ETH-Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
| | - Andrew J deMello
- Institute for Chemical and Bioengineering, Dept. of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule (ETH-Zürich), Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland
| | - Govind V Kaigala
- IBM Research Europe, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
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23
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Pereiro I, Fomitcheva-Khartchenko A, Kaigala GV. Shake It or Shrink It: Mass Transport and Kinetics in Surface Bioassays Using Agitation and Microfluidics. Anal Chem 2020; 92:10187-10195. [PMID: 32515583 DOI: 10.1021/acs.analchem.0c01625] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Surface assays, such as ELISA and immunofluorescence, are nothing short of ubiquitous in biotechnology and medical diagnostics today. The development and optimization of these assays generally focuses on three aspects: immobilization chemistry, ligand-receptor interaction, and concentrations of ligands, buffers, and sample. A fourth aspect, the transport of the analyte to the surface, is more rarely delved into during assay design and analysis. Improving transport is generally limited to the agitation of reagents, a mode of flow generation inherently difficult to control, often resulting in inconsistent reaction kinetics. However, with assay optimization reaching theoretical limits, the role of transport becomes decisive. This perspective develops an intuitive and practical understanding of transport in conventional agitation systems and in microfluidics, the latter underpinning many new life science technologies. We give rules of thumb to guide the user on system behavior, such as advection regimes and shear stress, and derive estimates for relevant quantities that delimit assay parameters. Illustrative cases with examples of experimental results are used to clarify the role of fundamental concepts such as boundary and depletion layers, mass diffusivity, or surface tension.
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Affiliation(s)
- Iago Pereiro
- IBM Research-Europe, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
| | | | - Govind V Kaigala
- IBM Research-Europe, Säumerstrasse 4, Rüschlikon CH-8803, Switzerland
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24
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Shukla RP, Ben‐Yoav H. A Chitosan-Carbon Nanotube-Modified Microelectrode for In Situ Detection of Blood Levels of the Antipsychotic Clozapine in a Finger-Pricked Sample Volume. Adv Healthc Mater 2019; 8:e1900462. [PMID: 31240866 DOI: 10.1002/adhm.201900462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/07/2019] [Indexed: 01/06/2023]
Abstract
The antipsychotic clozapine is the most effective medication available for schizophrenia and it is the only antipsychotic with a known efficacious clinical range. However, it is dramatically underutilized due to the inability to test clozapine blood levels in finger-pricked patients' samples. This prevents obtaining immediate blood levels information, resulting in suboptimal treatment. The development of an electrochemical microsensor is presented, which enables, for the first time, clozapine detection in microliters volume whole blood. The sensor is based on a microelectrode modified with micrometer-thick biopolymer chitosan encapsulating carbon nanotubes. The developed sensor detects clozapine oxidation current, in the presence of other electroactive species in the blood, which generate overlapping electrochemical signals. Clozapine detection, characterized in whole blood from healthy volunteers, displays a sensitivity of 32 ± 3.0 µA cm-2 µmol-1 L and a limit-of-detection of 0.5 ± 0.03 µmol L-1 . Finally, the developed sensor displays a reproducible electrochemical signal (0.6% relative standard deviation) and high storage stability (9.8% relative standard deviation after 8 days) in serum samples and high repeatability (9% relative standard deviation for the 5th repetition) in whole blood samples. By enabling the rapid and minimally invasive clozapine detection at the point-of-care, an optimal schizophrenia treatment is provided.
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Affiliation(s)
- Rajendra P. Shukla
- Nanobioelectronics LaboratoryDepartment of Biomedical EngineeringBen‐Gurion University of the Negev Beer‐Sheva 8410501 Israel
| | - Hadar Ben‐Yoav
- Nanobioelectronics LaboratoryDepartment of Biomedical EngineeringBen‐Gurion University of the Negev Beer‐Sheva 8410501 Israel
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25
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Shi Y, He L, Deng Q, Liu Q, Li L, Wang W, Xin Z, Liu R. Synthesis and Applications of Silver Nanowires for Transparent Conductive Films. MICROMACHINES 2019; 10:E330. [PMID: 31100913 PMCID: PMC6562472 DOI: 10.3390/mi10050330] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 01/15/2023]
Abstract
Flexible transparent conductive electrodes (TCEs) are widely applied in flexible electronic devices. Among these electrodes, silver (Ag) nanowires (NWs) have gained considerable interests due to their excellent electrical and optical performances. Ag NWs with a one-dimensional nanostructure have unique characteristics from those of bulk Ag. In past 10 years, researchers have proposed various synthesis methods of Ag NWs, such as ultraviolet irradiation, template method, polyol method, etc. These methods are discussed and summarized in this review, and we conclude that the advantages of the polyol method are the most obvious. This review also provides a more comprehensive description of the polyol method for the synthesis of Ag NWs, and the synthetic factors including AgNO3 concentration, addition of other metal salts and polyvinyl pyrrolidone are thoroughly elaborated. Furthermore, several problems in the fabrication of Ag NWs-based TCEs and related devices are reviewed. The prospects for applications of Ag NWs-based TCE in solar cells, electroluminescence, electrochromic devices, flexible energy storage equipment, thin-film heaters and stretchable devices are discussed and summarized in detail.
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Affiliation(s)
- Yue Shi
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Liang He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Qian Deng
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Quanxiao Liu
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Luhai Li
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Wei Wang
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Zhiqing Xin
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
| | - Ruping Liu
- School of Printing and Packaging Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
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