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García-Rodrigo L, Ramos-López C, Sánchez-Tirado E, Agüí L, González-Cortés A, Yáñez-Sedeño P, Pingarrón JM. Label-free electrochemical immunosensing of glial fibrillary acidic protein (GFAP) at synthesized rGO/MoS 2/AgNPs nanocomposite. Application to the determination in human cerebrospinal fluid. Talanta 2024; 270:125597. [PMID: 38150968 DOI: 10.1016/j.talanta.2023.125597] [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: 11/03/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 12/29/2023]
Abstract
An electrochemical bioplatform involving screen-printed carbon electrodes modified with rGO/MoS2/AgNPs nanocomposites, the covalent immobilization of the specific capture antibody, and label-free detection has been developed for the determination of Glial Fibrillary Acidic Protein (GFAP). The resulting immunosensor profits the benefits of the rGO high conductivity, the pseudo-peroxidase activity of MoS2 and the electrocatalytic effect provided by AgNPs for improving the reduction current responses of hydrogen peroxide at the electrode surface. GFAP is a biomarker of central nervous system injuries has been proposed for the detection and monitoring of neurological diseases as epilepsy, encephalitis, or multiple sclerosis. For the first time, amperometric detection of the immunosensing event was performed by measuring the electrocatalytic response of hydrogen peroxide reduction at the modified electrode. Several techniques including scanning (SEM) and transmission (TEM) electron microscopies were used for the characterization of the synthesized composite whilst electrochemical impedance spectroscopy (EIS) using the redox probe Fe(CN)63-/4- was employed to evaluate the success of the steps implied in the fabrication of the immunosensor. After optimization of the involved experimental variables, a linear calibration plot for GFAP was constructed over the 0.6-100 ng mL-1 range, and a detection limit of 0.16 ng mL-1 was achieved. The developed immunosensor was successfully applied to the determination of GFAP in human cerebrospinal fluid (CSF) of patients diagnosed with encephalitis.
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Affiliation(s)
- Lorena García-Rodrigo
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
| | - Claudia Ramos-López
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
| | - Esther Sánchez-Tirado
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
| | - Lourdes Agüí
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
| | - Araceli González-Cortés
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
| | - Paloma Yáñez-Sedeño
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain.
| | - José M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040, Madrid, Spain
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Lokesh Kumar S, Kumar S, Tetala KKR. A manganese dioxide nanoparticle-bimetallic metal organic framework composite for selective and sensitive detection of vitamin D 3 in human plasma. Mikrochim Acta 2023; 190:345. [PMID: 37542579 DOI: 10.1007/s00604-023-05904-x] [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: 02/27/2023] [Accepted: 07/05/2023] [Indexed: 08/07/2023]
Abstract
For the first time a metal organic framework nanomaterial has been developed comprising manganese dioxide nanoparticle and iron and zinc metal ions interlinked with each other via terephthalic acid. The framework shape was identified as an elongated hexagonal nanorod (TEM) with varying functional groups (FT-IR) and diffraction patterns (XRD). The framework nanocomposite as such in aqueous acidic electrolyte solution has displayed an excellent conductivity (redox behavior) and surface excess (3.08 × 10-8 cm-2). Under the optimized conditions (0.1 M H2SO4 as electrolyte, 50 mV/s scan rate, +1.26 V (vs Ag/AgCl)), the metal organic framework coated electrode has selectively identified vitamin D3 (VD3) in the presence of various other interfering molecules and displayed excellent limit of detection (1.9 ng mL-1). The developed sensor has been applied to the determination of VD3 in extracted human plasma samples (RSD of 0.3-2.6 % and recovery of 96-102 %), and the obtained VD3 values are similar to HPLC-UV method.
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Affiliation(s)
- S Lokesh Kumar
- Centre for Bioseparation Technology (CBST), Vellore Institute of Technology (VIT), Tamilnadu, 632014, Vellore, India
| | - Sanjit Kumar
- Centre for Bioseparation Technology (CBST), Vellore Institute of Technology (VIT), Tamilnadu, 632014, Vellore, India
| | - Kishore K R Tetala
- Centre for Bioseparation Technology (CBST), Vellore Institute of Technology (VIT), Tamilnadu, 632014, Vellore, India.
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Kaur A, Lavisha, Chaudhary GR, Prabhakar N. MC-Au/MSS-Z8 porous network assisted advanced electrochemical immunosensing of 25-hydroxyvitamin D 3. Talanta 2023; 257:124376. [PMID: 36821967 DOI: 10.1016/j.talanta.2023.124376] [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: 10/15/2022] [Revised: 12/28/2022] [Accepted: 02/14/2023] [Indexed: 02/17/2023]
Abstract
On-site monitoring of vitamin D levels is subject matter of immediate attention owing to the serious aftermath of its long standing deficiency. Therefore, a novel and efficient voltammetric immunosensing of 25-hydroxyvitamin D3 (25(OH)VD3) has been experimented based on an advanced sensing platform composed of meso-microporous silica-zeolitic imidazolate framework-8 (MSS-Z8) with highly enhanced surface area (SBET, MSS-Z8 (643.4 m2g-1) > SBET, MSS (49.95 m2g-1)), embedded with gold particles (mass loading of 82 μg), particularly of microcubic morphology (MC-Au). Further, the MC-Au/MSS-Z8/FTO platform was fashioned with antibody specific to 25(OH)VD3 via interaction between Au and abundant -SH groups present on the antibody surface. After optimization of operational parameters, the Ab/MC-Au/MSS-Z8/FTO immunosensor was employed for the determination of 25(OH)VD3 within 0.01-106 pg mL-1 concentration range through differential pulse voltammetry technique in [Fe(CN)6]3-/4-. Thus, 0.01 pg mL-1 concentration of 25(OH)VD3 was the experimental limit of detection of the immunosensor. Further, upon examination of various analytical parameters, it turns out that the immunosensor exhibited low theoretical LOD (0.23 pg mL-1) and LOQ (0.76 pg mL-1), wide linear range (0.01-106 pg mL-1), ultra-sensitivity (143.9 μA [log (pg mL-1)]-1 cm-2), adequate reproducibility (RSD ≤1.23%) and acceptable shelf life. Most importantly, the immunosensor presented proficient performance with spiked human serum samples (Recovery = 97.20-100.7%, RSD value < 5.6%), evincing the adequacy of present biosensing approach.
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Affiliation(s)
- Amandeep Kaur
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India; Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Lavisha
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Ganga Ram Chaudhary
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India; SAIF/CIL, Panjab University, Chandigarh, 160014, India
| | - Nirmal Prabhakar
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India.
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Zhang T, Du X, Zhang Z. Advances in electrochemical sensors based on nanomaterials for the detection of lipid hormone. Front Bioeng Biotechnol 2022; 10:993015. [PMID: 36159660 PMCID: PMC9500180 DOI: 10.3389/fbioe.2022.993015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Lipid hormone is produced by highly differentiated endocrine cells and directly secretes into the blood circulation or tissue fluid to act as information transmission. It influences the physiological functions of the human body by controlling the metabolic processes of multiple tissue cells. Monitoring the levels of lipid hormone is of great importance for maintaining human health. The electrochemical sensor is considered as an ideal tool to detect lipid hormone owing to its advantages such as quick response, convenience and low economic costs. In recent 3 years, researchers have developed various electrochemical sensors for the detection of lipid hormone to improve their sensitivity or selectivity. The use of nanomaterials (such as carbon nanomaterials, precious metal and polymer) is a key research object and a breakthrough for improving the sensing performance of electrochemical sensors for detection of lipid hormone. This paper reviews and discusses the basic principle, nanomaterials, actuality and future development trend of electrochemical sensors for the detection of lipid hormone in the past 3 years.
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Affiliation(s)
| | - Xin Du
- *Correspondence: Xin Du, ; Zhenguo Zhang,
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Martins TS, Bott-Neto JL, Machado SAS, Oliveira ON. Label-Free Electrochemical Immunosensor Made with Tree-like Gold Dendrites for Monitoring 25-Hydroxyvitamin D3 Metabolite. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31455-31462. [PMID: 35776164 DOI: 10.1021/acsami.2c08381] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Flexible, fully printed immunosensors can meet the requirements of precision nutrition, but this demands optimized molecular architectures to reach the necessary sensitivity. Herein, we report on flexible and label-free immunosensor chips made with tree-like gold dendrites (AuDdrites) electrochemically formed by selective desorption of l-cysteine (L-cys) on (111) gold planes. Electrodeposition was used because it is scalable and cost-effective for a rapid, direct growth of Au hyperbranched dendritic structures. The 25-hydroxyvitamin D3 (25(OH)D3) metabolite was detected within 15 min with a limit of detection (LOD) of 0.03 ng mL-1. This high performance was possible due to the careful optimization of the electroactive layer and working conditions for square wave voltammetry (SWV). Electrocrystallization was manipulated by controlling the deposition potential and the molar ratio between HAuCl4 and L-cys. Metabolite detection was performed on human serum and saliva samples with adequate recovery between 97% and 100%. The immunosensors were stable and reproducible, unresponsive to interference from other molecules in human serum and saliva. They can be extended for use as wearable sensors with their mechanical flexibility and possible customization.
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Affiliation(s)
- Thiago S Martins
- São Carlos Institute of Chemistry, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - José L Bott-Neto
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Sergio A S Machado
- São Carlos Institute of Chemistry, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
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Zhu S, Liu Y, Gu Z, Zhao Y. Research trends in biomedical applications of two-dimensional nanomaterials over the last decade - A bibliometric analysis. Adv Drug Deliv Rev 2022; 188:114420. [PMID: 35835354 DOI: 10.1016/j.addr.2022.114420] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/20/2022] [Accepted: 07/04/2022] [Indexed: 11/01/2022]
Abstract
Two-dimensional (2D) nanomaterials with versatile properties have been widely applied in the field of biomedicine. Despite various studies having reviewed the development of biomedical 2D nanomaterials, there is a lack of a study that objectively summarizes and analyzes the research trend of this important field. Here, we employ a series of bibliometric methods to identify the development of the 2D nanomaterial-related biomedical field during the past 10 years from a holistic point of view. First, the annual publication/citation growth, country/institute/author distribution, referenced sources, and research hotspots are identified. Thereafter, based on the objectively identified research hotspots, the contributions of 2D nanomaterials to the various biomedical subfields, including those of biosensing, imaging/therapy, antibacterial treatment, and tissue engineering are carefully explored, by considering the intrinsic properties of the nanomaterials. Finally, prospects and challenges have been discussed to shed light on the future development and clinical translation of 2D nanomaterials. This review provides a novel perspective to identify and further promote the development of 2D nanomaterials in biomedical research.
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Affiliation(s)
- Shuang Zhu
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaping Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui 230001, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing 100049, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yuliang Zhao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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Sharma P, Chauhan R, Pande V, Basu T, Rajesh, Kumar A. Rapid sensing ofTilletia indica - Teliospore in wheat extractby apiezoelectric label free immunosensor. Bioelectrochemistry 2022; 147:108175. [PMID: 35749887 DOI: 10.1016/j.bioelechem.2022.108175] [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: 03/22/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 11/02/2022]
Abstract
'Tilletia indica', a fungal pathogen causes Karnal bunt disease in wheat. It has been renowned as a quarantine pest in more than 50 countries, therefore, urged a threat to wheat in the international market. To date, conventional methods employed to detect the disease involve the tentative identification of spores (teliospores) based on morphology. For effective and specific disease control, it is essential to get the specific protein of the analyte (teliospore) to target. In present study, a label-free immunosensor has been developed to detect Karnal bunt disease. A specifically synthesized anti-teliosporic monoclonal antibody (mAb) was immobilized on a self-assembled monolayer of 11-mercaptoundecanoic acid (11-MUA) to detect teliospore. All modified electrodes were morphologically characterized by scanning electron microscopy (SEM), atomic force microscopy(AFM), Fourier transform infra-red spectroscopy (FT-IR) techniques and analytically characterized by quartz crystal microbalance (QCM) and cyclic voltammetry (CV). The linearity range was 19 pg mL-1-10 ng mL-1, while the detection limit (LOD) was 4.4 pg mL-1 and 12.5 pg mL-1, respectively. The stability, reproducibility, and repeatability of the immunoelectrode was examined by CV, and found stable upto 18 days with negligible variation. The binding affinity (association constant (Ka)) of the developed immunoelectrode was 1.9 × 10-2 ng mL-1. The real sample has been tested in spiked wheat samples and found about 95-103 % recovery with 2.8-4.4 % relative error.
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Affiliation(s)
- Priyanka Sharma
- Department of Biotechnology, Kumaun University, Bhimtal Campus, Bhimtal, Nainital, Uttarakhand, 263136, India; Department of Molecular Biology and Genetic Engineering, College of Basic Sciences & Humanities, G.B. Pant University of Agriculture & Technology, Pant Nagar 263145, Uttarakhand, India.
| | - Ruchika Chauhan
- Department of Molecular Biology and Genetic Engineering, College of Basic Sciences & Humanities, G.B. Pant University of Agriculture & Technology, Pant Nagar 263145, Uttarakhand, India
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Bhimtal Campus, Bhimtal, Nainital, Uttarakhand, 263136, India
| | - Tinku Basu
- Amity Centre for Nanomedicine, Amity University Uttar Pradesh, Noida 201303, India
| | - Rajesh
- CSIR- National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi 110012, India
| | - Anil Kumar
- Department of Molecular Biology and Genetic Engineering, College of Basic Sciences & Humanities, G.B. Pant University of Agriculture & Technology, Pant Nagar 263145, Uttarakhand, India; Director Education, Rani Lakshmi Bai Central Agricultural University, Jhansi 284003, India.
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Khatri R, Puri NK. Electrochemical Studies of Biofunctionalized MoS2 Matrix for Highly Stable Immobilization of antibodies and Detection of Lung Cancer Protein Biomarker. NEW J CHEM 2022. [DOI: 10.1039/d2nj00540a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To address the issue of lack of stable immobilization of antibodies on the biosensing matrix for repeated cycles of measurement, chitosan (CS) bio-functionalized MoS2 is prepared to serve as a...
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