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Gao S, Li H, Liu L, Tian Y, Wang R, Pan X, Wen F, Xiang J, Nie A, Zhai K, Wang B, Mu C, Xue T, Liu Z. Ultrasensitive CCL2 Detection in Urine for Diabetic Nephropathy Diagnosis Using a WS 2-Based Plasmonic Biosensor. NANO LETTERS 2024; 24:5301-5307. [PMID: 38625005 DOI: 10.1021/acs.nanolett.4c00981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The accurate diagnosis of diabetic nephropathy relies on achieving ultrasensitive biosensing for biomarker detection. However, existing biosensors face challenges such as poor sensitivity, complexity, time-consuming procedures, and high assay costs. To address these limitations, we report a WS2-based plasmonic biosensor for the ultrasensitive detection of biomarker candidates in clinical human urine samples associated with diabetic nephropathy. Leveraging plasmonic-based electrochemical impedance microscopy (P-EIM) imaging, we observed a remarkable charge sensitivity in monolayer WS2 single crystals. Our biosensor exhibits an exceptionally low detection limit (0.201 ag/mL) and remarkable selectivity in detecting CC chemokine ligand 2 (CCL2) protein biomarkers, outperforming conventional techniques such as ELISA. This work represents a breakthrough in traditional protein sensors, providing a direction and materials foundation for developing ultrasensitive sensors tailored to clinical applications for biomarker sensing.
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Affiliation(s)
- Shuangshuang Gao
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Huili Li
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao 066000, China
| | - Lixuan Liu
- Institute of Quantum Materials and Devices, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China
| | - Yiming Tian
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao 066000, China
| | - Rui Wang
- Department of Endocrinology, The First Hospital of Qinhuangdao, Qinhuangdao 066000, China
| | - Xuanlin Pan
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Fusheng Wen
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Jianyong Xiang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Anmin Nie
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Kun Zhai
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Bochong Wang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Congpu Mu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Tianyu Xue
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Zhongyuan Liu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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2
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Liu Y, Gao S, Liu L, Wang J, Wang D, Xiang J, Nie A, Zhai K, Mu C, Wen F, Wang B, Xue T, Liu Z. Plasmonic Imaging of Single DNA with Charge Sensitive Monolayer WS 2. ACS Sens 2024; 9:2134-2140. [PMID: 38626725 DOI: 10.1021/acssensors.4c00167] [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] [Indexed: 04/18/2024]
Abstract
Imaging the surface charge of biomolecules such as proteins and DNA, is crucial for comprehending their structure and function. Unfortunately, current methods for label-free, sensitive, and rapid imaging of the surface charge of single DNA molecules are limited. Here, we propose a plasmonic microscopy strategy that utilizes charge-sensitive single-crystal monolayer WS2 materials to image the local charge density of a single λ-DNA molecule. Our study reveals that WS2 is a highly sensitive charge-sensitive material that can accurately measure the local charge density of λ-DNA with high spatial resolution and sensitivity. The consistency of the surface charge density values obtained from the single-crystal monolayer WS2 materials with theoretical simulations demonstrates the reliability of our approach. Our findings suggest that this class of materials has significant implications for the development of label-free, scanning-free, and rapid optical detection and charge imaging of biomolecules.
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Affiliation(s)
- Yang Liu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Shuangshuang Gao
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Lixuan Liu
- Institute of Quantum Materials and Devices, School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China
| | - Ji Wang
- BGI Research, Shenzhen 518000, China
| | | | - Jianyong Xiang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Anmin Nie
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Kun Zhai
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Congpu Mu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Fusheng Wen
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Bochong Wang
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Tianyu Xue
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Zhongyuan Liu
- Center for High Pressure Science, State Key Lab of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
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3
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Ullberg N, Filoramo A, Campidelli S, Derycke V. In Operando Study of Charge Modulation in MoS 2 Transistors by Excitonic Reflection Microscopy. ACS NANO 2024; 18:9886-9894. [PMID: 38547872 PMCID: PMC11008581 DOI: 10.1021/acsnano.3c09337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 04/10/2024]
Abstract
Monolayers of transition metal dichalcogenides (2D TMDs) experience strong modulation of their optical properties when the charge density is varied. Indeed, the transition from carriers composed mostly of excitons at low electron density to a situation in which trions dominate at high density is accompanied by a significant evolution of both the refractive index and the extinction coefficient. Using optical interference reflection microscopy at the excitonic wavelength, this (n, κ)-q relationship can be exploited to directly image the electron density in operating TMD devices. In this work, we show how this technique, which we call XRM (excitonic reflection microscopy), can be used to study charge distribution in MoS2 field-effect transistors with subsecond throughput, in wide-field mode. Complete maps of the charge distribution in the transistor channel at any drain and gate bias polarization point (VDS, VGS) are obtained, at ∼3 orders of magnitude faster than with scanning probe techniques such as KPFM. We notably show how the advantages of XRM enable real-time mapping of bias-dependent charge inhomogeneities, the study of resistive delays in 2D polycrystalline networks, and the evaluation of the VDS vs VGS competition to control the charge distribution in active devices.
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Affiliation(s)
- Nathan Ullberg
- Université Paris-Saclay, CEA,
CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Arianna Filoramo
- Université Paris-Saclay, CEA,
CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Stéphane Campidelli
- Université Paris-Saclay, CEA,
CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
| | - Vincent Derycke
- Université Paris-Saclay, CEA,
CNRS, NIMBE, LICSEN, 91191 Gif-sur-Yvette, France
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4
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Ma Y, Wang D. Revealing Electrical Double-Layer Potential of Substrates by Hysteresis Ion Transport in Scanning Ion Conductance Microscopy. Anal Chem 2021; 93:15821-15825. [PMID: 34816713 DOI: 10.1021/acs.analchem.1c04486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The electrical double layer (EDL) at solid-liquid interfaces is key to interfacial transport and reaction processes and numerous emerging applications exploiting such processes. Herein, by studying hysteresis ion-transport processes in nanopipettes near charged substrates, we found the resulting cross-point potential (Vcp) to represent the surface potential of both nanopipettes and substrates. After the subtraction of Vcp in bulk solution, the remaining ΔVcp shows excellent exponential decay with respect to the separation distance from the substrates and agrees very well with the classical double-layer theory. The revealed new hysteresis ion transport in nanopipettes would provide a new way for the simple and direct EDL imaging of various interfaces of interest with nanoscale resolution in scanning ion conductance microscopy.
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Affiliation(s)
- Yingfei Ma
- Department of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 10049, P. R. China
| | - Dengchao Wang
- Department of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 10049, P. R. China
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Forzani ES, He H, Hihath J, Lindsay S, Penner RM, Wang S, Xu B. Moving Electrons Purposefully through Single Molecules and Nanostructures: A Tribute to the Science of Professor Nongjian Tao (1963-2020). ACS NANO 2020; 14:12291-12312. [PMID: 32940998 PMCID: PMC7718722 DOI: 10.1021/acsnano.0c06017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrochemistry intersected nanoscience 25 years ago when it became possible to control the flow of electrons through single molecules and nanostructures. Many surprises and a wealth of understanding were generated by these experiments. Professor Nongjian Tao was among the pioneering scientists who created the methods and technologies for advancing this new frontier. Achieving a deeper understanding of charge transport in molecules and low-dimensional materials was the first priority of his experiments, but he also succeeded in discovering applications in chemical sensing and biosensing for these novel nanoscopic systems. In parallel with this work, the investigation of a range of phenomena using novel optical microscopic methods was a passion of his and his students. This article is a review and an appreciation of some of his many contributions with a view to the future.
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Affiliation(s)
- Erica S Forzani
- Biodesign Center for Bioelectronics and Biosensors, Departments of Chemical Engineering and Mechanical Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Huixin He
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Joshua Hihath
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, California 95616, United States
| | - Stuart Lindsay
- Biodesign Center for Single Molecule Biophysics, Arizona State University, Tempe, Arizona 85287, United States
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Shaopeng Wang
- Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, Arizona 85287, United States
| | - Bingqian Xu
- School of Electrical and Computer Engineering, University of Georgia, Athens, Georgia 30602, United States
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Strange LE, Yadav J, Garg S, Shinde PS, Hill JW, Hill CM, Kung P, Pan S. Investigating the Redox Properties of Two-Dimensional MoS 2 Using Photoluminescence Spectroelectrochemistry and Scanning Electrochemical Cell Microscopy. J Phys Chem Lett 2020; 11:3488-3494. [PMID: 32286830 DOI: 10.1021/acs.jpclett.0c00769] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Control over photophysical and chemical properties of two-dimensional (2D) transition metal dichalcogenides (TMDs) is the key to advance their applications in next-generation optoelectronics. Although chemical doping and surface modification with plasmonic metals have been reported to tune the photophysical and catalytic properties of 2D TMDs, there have been few reports of tuning optical properties using dynamic electrochemical control of electrode potential. Herein, we report (1) the photoluminescence (PL) enhancement and red-shift in the PL spectrum of 2D MoS2, synthesized by chemical vapor deposition and subsequent transfer onto an indium tin oxide electrode, upon electrochemical anodization and (2) spatial heterogeneities in its photoelectrochemical (PEC) activities. Spectroelectrochemistry shows that positive electrochemical bias causes an initial ten-fold increase in the PL intensity followed by a quick decrease in the enhancement. The PL enhancement and spectrum red-shift are associated with the decrease in nonradiative decay rates of excitons formed upon electrochemical anodization of 2D MoS2. Additionally, scanning electrochemical cell microscopy (SECCM) study shows that the 2D MoS2 crystal is spatially sensitive to PEC oxidation at positive potentials. SECCM also shows a photocurrent increase caused by spatially heterogeneous edge-type defect sites of the crystal.
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Affiliation(s)
| | | | | | | | - Joshua W Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Caleb M Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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