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Lee SM, Kim H, Li P, Park HG. A label-free and washing-free method to detect biological thiols on a personal glucose meter utilizing glucose oxidase-mimicking activity of gold nanoparticles. Biosens Bioelectron 2024; 250:116019. [PMID: 38278122 DOI: 10.1016/j.bios.2024.116019] [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: 10/31/2023] [Revised: 12/17/2023] [Accepted: 01/08/2024] [Indexed: 01/28/2024]
Abstract
We herein developed a label-free and washing-free method to detect biological thiols (biothiols) on a personal glucose meter (PGM) utilizing the intrinsic glucose oxidase (GOx)-mimicking activity of gold nanoparticles (AuNPs). By focusing on the fact that this activity could be diminished by target biothiols through their binding onto the AuNP surface, we correlated the concentration of biothiols with that of glucose readily measurable on a PGM and successfully determined cysteine (Cys), homocysteine (Hcy), and glutathione (GSH) down to 0.116, 0.059, and 0.133 μM, respectively, with high specificity against non-target biomolecules. We further demonstrated its practical applicability by reliably detecting target biothiol in heterogeneous human serum. Due to the meritorious features of PGM such as simplicity, portability, and cost-effectiveness, we believe that this work could serve as a powerful platform for biothiol detection in point-of-care settings.
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Affiliation(s)
- Sang Mo Lee
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyoyong Kim
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Pei Li
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Wang Z, Guo Y, Xianyu Y. Applications of self-assembly strategies in immunoassays: A review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Kinnamon DS, Heggestad JT, Liu J, Chilkoti A. Technologies for Frugal and Sensitive Point-of-Care Immunoassays. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2022; 15:123-149. [PMID: 35216530 PMCID: PMC10024863 DOI: 10.1146/annurev-anchem-061020-123817] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Immunoassays are a powerful tool for sensitive and quantitative analysis of a wide range of biomolecular analytes in the clinic and in research laboratories. However, enzyme-linked immunosorbent assay (ELISA)-the gold-standard assay-requires significant user intervention, time, and clinical resources, making its deployment at the point-of-care (POC) impractical. Researchers have made great strides toward democratizing access to clinical quality immunoassays at the POC and at an affordable price. In this review, we first summarize the commercially available options that offer high performance, albeit at high cost. Next, we describe strategies for the development of frugal POC assays that repurpose consumer electronics and smartphones for the quantitative detection of analytes. Finally, we discuss innovative assay formats that enable highly sensitive analysis in the field with simple instrumentation.
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Affiliation(s)
- David S Kinnamon
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA;
| | - Jacob T Heggestad
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA;
| | - Jason Liu
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA;
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA;
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Zhu X, Li K, Zheng J, Xia G, Jiang F, Liu H, Shi J. Usage of procalcitonin and sCD14-ST as diagnostic markers for postoperative spinal infection. J Orthop Traumatol 2022; 23:25. [PMID: 35648304 PMCID: PMC9160164 DOI: 10.1186/s10195-022-00644-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 05/14/2022] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Identifying biomarkers for early diagnosis of postoperative spinal infection is essential to avoid complications after spine surgery. The presented study evaluated serum levels of procalcitonin (PCT), C-reactive protein (CRP), and soluble CD14 subtype (sCD14-ST) in patients who underwent spinal surgery to assess the diagnosis values of PCT and sCD14-ST. METHODS Serum levels of PCT, CRP, and sCD14-ST were measured in 490 (289 male/201 female) patients who underwent spinal surgery (SS) before and 1 day after surgery. PCT and sCD14-ST levels of patients diagnosed with postoperative infection (PI) and patients diagnosed with postoperative non-infection (PN) were compared. RESULTS Serum levels of PCT, CRP, and sCD14-ST were significantly increased after surgery (F = 58.393, P = 0.000). In patients diagnosed as having a PI, serum levels of PCT and sCD14-ST were positively correlated with each other (r = 0.90, P < 0.01) and with operation duration (r = 0.92, 0.88, P < 0.01). Receiver operating characteristic (ROC) models showed that both PCT (AUC = 0.817, optimal cutoff: 0.69 ng/ml, P = 0.000) and sCD14-ST (AUC = 0.824, optimal cutoff: 258.27 pg/ml, P = 0.000) can distinguish PI versus PN patients well. CONCLUSION Our results demonstrated that serum levels of PCT and sCD14-ST have the potential to be used as a diagnostic markers for postoperative spinal infection.
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Affiliation(s)
- Xi Zhu
- Orthopedics, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Kaige Li
- Department of Surgery, School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Jianping Zheng
- Orthopedics, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Gen Xia
- Orthopedics, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Feng Jiang
- Department of Medicine, School of Medicine and Dentistry, Aab Cardiovascular Research Institute, University of Rochester, Rochester, NY, USA
| | - Huan Liu
- Department of Medicine, School of Medicine and Dentistry, Aab Cardiovascular Research Institute, University of Rochester, Rochester, NY, USA
| | - Jiandang Shi
- Department of Surgery, School of Clinical Medicine, Ningxia Medical University, Yinchuan, China.
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A simple and green method for direct determination of hydrogen peroxide and hypochlorite in household disinfectants based on personal glucose meter. Enzyme Microb Technol 2022; 155:109996. [DOI: 10.1016/j.enzmictec.2022.109996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 12/24/2022]
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Electrochemical Immunosensors for Quantification of Procalcitonin: Progress and Prospects. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9070182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Human procalcitonin (PCT) is a peptide precursor of the calcium-regulating hormone calcitonin. Traditionally, PCT has been used as a biomarker for severe bacterial infections and sepsis. It has also been recently identified as a potential marker for COVID-19. Normally, serum PCT is intracellularly cleaved to calcitonin, which lowers the levels of PCT (<0.01 ng/mL). In severe infectious diseases and sepsis, serum PCT levels increase above 100 ng/mL in response to pro-inflammatory stimulation. Development of sensors for specific quantification of PCT has resulted in considerable improvement in the sensitivity, linear range and rapid response. Among the various sensing strategies, electrochemical platforms have been extensively investigated owing to their cost-effectiveness, ease of fabrication and portability. Sandwich-type electrochemical immunoassays based on the specific antigen–antibody interactions with an electrochemical transducer and use of nanointerfaces has augmented the electrochemical response of the sensors towards PCT. Identification of a superior combination of electrode material and nanointerface, and translation of the sensing platform into flexible and disposable substrates are under active investigation towards development of a point-of-care device for PCT detection. This review provides an overview of the existing detection strategies and limitations of PCT electrochemical immunosensors, and the emerging directions to address these lacunae.
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Wagner HJ, Mohsenin H, Weber W. Synthetic Biology-Empowered Hydrogels for Medical Diagnostics. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 178:197-226. [PMID: 33582837 DOI: 10.1007/10_2020_158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Synthetic biology is strongly inspired by concepts of engineering science and aims at the design and generation of artificial biological systems in different fields of research such as diagnostics, analytics, biomedicine, or chemistry. To this aim, synthetic biology uses an engineering approach relying on a toolbox of molecular sensors and switches that endows cellular hosts with non-natural computing functions and circuits. Importantly, this concept is not only limited to cellular approaches. Synthetic biological building blocks have also conferred sensing and switching capability to otherwise inactive materials. This principle has attracted high interest for the development of biohybrid materials capable of sensing and responding to specific molecular stimuli, such as disease biomarkers, antibiotics, or heavy metals. Moreover, the interconnection of individual sense-and-respond materials to complex materials systems has enabled the processing of, for example, multiple inputs or the amplification of signals using feedback topologies. Such systems holding high potential for applications in the analytical and diagnostic sectors will be described in this chapter.
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Affiliation(s)
- Hanna J Wagner
- Faculty of Biology, Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg im Breisgau, Germany.,Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Hasti Mohsenin
- Faculty of Biology, Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg im Breisgau, Germany
| | - Wilfried Weber
- Faculty of Biology, Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg im Breisgau, Germany.
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Liu R, He Y, Lan T, Zhang J. Installing CRISPR-Cas12a sensors in a portable glucose meter for point-of-care detection of analytes. Analyst 2021; 146:3114-3120. [PMID: 33999055 DOI: 10.1039/d1an00008j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Integrating CRISPR-Cas12a sensors with a portable glucose meter (PGM) was developed based on the target-induced activation of the collateral cleavage activity of Cas12a. Considering the portability, low cost and facile incorporation of the PGM system with suitable Cas12a sensors to recognize many targets, the CRISPR/Cas12a-PGM system demonstrated here paves a way to further broaden the POC applications of CRISPR-based diagnostics.
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Affiliation(s)
- Ran Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
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A portable personal glucose meter method for enzyme activity detection and inhibitory activity evaluation based on alkaline phosphatase-mediated reaction. Anal Bioanal Chem 2021; 413:2457-2466. [PMID: 33674935 DOI: 10.1007/s00216-021-03187-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
In this study, an effective and portable method for enzyme activity detection and inhibitory activity evaluation was developed based on the alkaline phosphatase (ALP)-mediated reaction in a personal glucose meter (PGM). In this method, ALP catalyzes the hydrolysis of substrate amifostine (WR-2721) to produce ethanethiol (WR-1065), which can trigger the reduction of ferricyanide (K3[Fe(CN)6]), an electron transfer mediator in glucose test strips, to ferrocyanide ([K4Fe(CN)6]) and generate a PGM-detectable signal. Thus, WR-1065 can be directly quantified by a PGM as simply as detecting glucose in blood. After being systematically optimized, the method was applied to evaluate the inhibitory activity of ten small-molecule compounds and six Cordyceps sinensis (CS) extracts on ALP. The results showed that adenosine-5-monophosphate and theophylline had high inhibitory activity, but two CS extracts have promotion potency on ALP with the values of -20.7 ± 1.3% and -46.6 ± 2.1%, respectively. Moreover, the binding sites and modes of small-molecule compounds to ALP were investigated by molecular docking, while a new substrate competitor with theoretically good inhibitory activity against ALP was designed by scaffold hopping. Finally, the accuracy of the PGM method for enzyme activity detection was assessed by detecting ALP from milk samples, and the recovery ranged from 87.7% to 116.9%. These results indicate that it is feasible to evaluate enzyme activity and the inhibitory activity of small-molecule compounds and CS extracts on ALP using a PGM based on ALP-mediated reaction. Graphical abstract.
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Tongdee M, Yamanishi C, Maeda M, Kojima T, Dishinger J, Chantiwas R, Takayama S. One-incubation one-hour multiplex ELISA enabled by aqueous two-phase systems. Analyst 2021; 145:3517-3527. [PMID: 32248215 DOI: 10.1039/d0an00383b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This work describes a convenient one-hour enzyme-linked immunosorbent assay (ELISA) formulated with conventional antibodies and horseradish peroxidase (HRP) reagents. The method utilizes aqueous two-phase system (ATPS) droplet formation based on poly(ethylene glycol) (PEG)-containing sample solution-triggered rehydration of dehydrated dextran (DEX) spots that contain all antibody reagents. Key advances in this paper include development of a formulation that allows a quick 1-hour overall incubation time and a procedure where inclusion of the HRP reagent in the PEG solution reduces the number of washing and incubation steps required to perform this assay. As an assay application, a 5-plex cytokine test compares cytokine secretion of differentially-treated human ThP-1 macrophages. Given the use of only readily available reagents and a common Western blot imaging system for the readout, this method is envisioned to be broadly applicable to a variety of multiplex immunoassays. To facilitate broader use, companion image processing software as an ImageJ plugin is also described and provided.
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Affiliation(s)
- Mintra Tongdee
- Department of Chemistry and Center of Excellence for Innovation in Chemistry and Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs), Faculty of Science, Mahidol University, Rama VI Rd., Bangkok 10400, Thailand and Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta 30332, Georgia, USA
| | - Cameron Yamanishi
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta 30332, Georgia, USA
| | - Midori Maeda
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta 30332, Georgia, USA
| | - Taisuke Kojima
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta 30332, Georgia, USA
| | | | - Rattikan Chantiwas
- Department of Chemistry and Center of Excellence for Innovation in Chemistry and Flow Innovation-Research for Science and Technology Laboratories (FIRST Labs), Faculty of Science, Mahidol University, Rama VI Rd., Bangkok 10400, Thailand
| | - Shuichi Takayama
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta 30332, Georgia, USA
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Developing an integrated microfluidic and miniaturized electrochemical biosensor for point of care determination of glucose in human plasma samples. Anal Bioanal Chem 2021; 413:1441-1452. [PMID: 33388843 DOI: 10.1007/s00216-020-03108-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/22/2020] [Accepted: 12/01/2020] [Indexed: 12/11/2022]
Abstract
A cost-effective, point of care (POC) device based on highly oriented CNT arrays was developed as an electrochemical assay for real-time and sensitive detection of glucose in complex samples. A low-cost, microcontroller-based potentiostat consisting of Arduino Due and LMP9100-EVM was developed to perform electrochemical measurements such as cyclic voltammetry (CV) and amperometry. A syringe pump based on open-source electronics was designed to direct the flow through a microfluidic chip. Vertically aligned carbon nanotube (VACNT) sensor arrays, in combination with the miniature potentiostat and the syringe pumps, were utilized as a POC device for the rapid and accurate detection of glucose. The structure and morphology of samples were characterized by field emission scanning electron microscopy (FESEM) and attenuated total reflectance Fourier transform infrared spectrometry (ATR-FTIR). CV as well as electrochemical impedance spectroscopy (EIS) was performed to investigate the electrochemical behavior of the electrode with respect to different diffusion regimes. The mediator-less biosensor had a limit of detection of 23 μM and sensitivity of 1462 μA mM-1 cm-2 and 1050 μA mM-1 cm-2 at the linear range of 1.2-7.8 mM and 7.8-11.2 mM, respectively. The presence of other biological compounds such as uric acid (UA) and ascorbic acid (AA) did not interfere with the detection of glucose. Finally, the designed POC device was successfully applied for the determination of glucose in human blood plasma samples.
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Bekhit M, Wang HY, McHardy S, Gorski W. Infection Screening in Biofluids with Glucose Test Strips. Anal Chem 2020; 92:3860-3866. [DOI: 10.1021/acs.analchem.9b05313] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Michael Bekhit
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hua-Yu Wang
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Stanton McHardy
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Waldemar Gorski
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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Lisi F, Peterson JR, Gooding JJ. The application of personal glucose meters as universal point-of-care diagnostic tools. Biosens Bioelectron 2020; 148:111835. [DOI: 10.1016/j.bios.2019.111835] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/28/2019] [Accepted: 10/30/2019] [Indexed: 02/06/2023]
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