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Chauhan N, Pareek S, Rosario W, Rawal R, Jain U. An insight into the state of nanotechnology-based electrochemical biosensors for PCOS detection. Anal Biochem 2024; 687:115412. [PMID: 38040173 DOI: 10.1016/j.ab.2023.115412] [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: 09/19/2023] [Revised: 11/25/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders affecting many women of reproductive age all over the world. PCOS is associated with the onset of enduring health complications, notably diabetes and cardiovascular diseases. Furthermore, PCOS escalates the propensity for conditions such as obesity, insulin resistance, and dyslipidemia, which can potentially culminate in life-threatening scenarios. A pervasive predicament surrounding PCOS pertains to its underdiagnosis due to discrepancies in diagnostic criteria and the intricacy of available testing methodologies. Consequently, many women encounter substantial delays in diagnosis with traditional diagnostic approaches. Prompt identification is imperative, as any delay can precipitate severe consequences. The conventional techniques employed for PCOS detection typically suffer from suboptimal accuracy, protracted assay times, and inherent limitations, thereby constraining their widespread applicability and accessibility. In response to these challenges, various electrochemical methods leveraging nanotechnology have been documented. In this concise review, we endeavor to delineate the deficiencies associated with established conventional methodologies while accentuating the distinctive attributes and benefits inherent to contemporary biosensors. We place particular emphasis on elucidating the pivotal advancements and recent breakthroughs in the realm of nanotechnology-facilitated biosensors for the detection of PCOS.
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Affiliation(s)
- Nidhi Chauhan
- School of Health Sciences and Technology, UPES, Dehradun, 248007, Uttarakhand, India.
| | - Sakshi Pareek
- Amity Institute of Nanotechnology (AINT), Amity University Uttar Pradesh (AUUP), Sector-125, Noida, 201313, India
| | - Warren Rosario
- School of Engineering, UPES, Dehradun, 248007, Uttarakhand, India
| | - Rachna Rawal
- Department of Physics & Astrophysics, University of Delhi, Delhi, 110007, India
| | - Utkarsh Jain
- School of Health Sciences and Technology, UPES, Dehradun, 248007, Uttarakhand, India
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2
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Høj PH, Møller-Sørensen J, Wissing AL, Alatraktchi FA. Electrochemical biosensors for monitoring of selected pregnancy hormones during the first trimester: A systematic review. Talanta 2023; 258:124396. [PMID: 36870154 DOI: 10.1016/j.talanta.2023.124396] [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: 12/11/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 02/27/2023]
Abstract
The hormones human chorionic gonadotropin, progesterone, estrogen and four of its metabolites (estradiol, estrone, estriol, estetrol), as well as relaxin play an essential role in the development of the fetus during the first trimester. Imbalances in these hormones during the first trimester have been directly linked to miscarriages. However, frequent monitoring of the hormones is limited by the current conventional centralized analytical tools that do not allow a rapid response time. Electrochemical sensing is considered an ideal tool to detect hormones owing to its advantages such as quick response, user-friendliness, low economic costs, and possibility of use in point-of-care settings. Electrochemical detection of pregnancy hormones is an emerging field that has been demonstrated primarily at research level. Thus, it is timely with a comprehensive overview of the characteristics of the reported detection techniques. This is the first extensive review focusing on the advances related to electrochemical detection of hormones linked to the first trimester of pregnancy. Additionally, this review offers insights into the main challenges that must be addressed imminently to ensure progress from research to clinical applications.
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Affiliation(s)
- Pernille Hagen Høj
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jon Møller-Sørensen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
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3
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Jiang L, Chen P, Zha L, Liu J, Sun D, Dai C, Li Y, Miao Y, Ouyang R. Enhanced catalytic amplification of mesoporous bismuth-gold nano-electrocatalyst triggering efficient capture of tumor marker. Colloids Surf B Biointerfaces 2022; 220:112924. [DOI: 10.1016/j.colsurfb.2022.112924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/30/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022]
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4
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Yang H, Xu W, Liang X, Yang Y, Zhou Y. Carbon nanotubes in electrochemical, colorimetric, and fluorimetric immunosensors and immunoassays: a review. Mikrochim Acta 2020; 187:206. [DOI: 10.1007/s00604-020-4172-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 02/18/2020] [Indexed: 12/14/2022]
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Ozgur E, Roberts KE, Ozgur EO, Gin AN, Bankhead JR, Wang Z, Su J. Ultrasensitive Detection of Human Chorionic Gonadotropin Using Frequency Locked Microtoroid Optical Resonators. Anal Chem 2019; 91:11872-11878. [PMID: 31415150 PMCID: PMC6991119 DOI: 10.1021/acs.analchem.9b02630] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Clean sport competition is of significant concern to many governments and sporting organizations. Highly sensitive and rapid sensors are needed to improve the detection of performance enhancing drugs in sports as athletes take diuretics to dilute the concentration of drugs in their urine and microdose under the detectable limits of current sensors. Here we demonstrate, using frequency locked microtoroid optical resonators, a 3 orders of magnitude improvement in detection limit over the current gold standard, mass spectrometry, for the common performance enhancing drug, human chorionic gonadotropin (hCG). hCG, also known as the pregnancy hormone, was detected both in simulated urine and in the urine of pregnant donors at a concentration of 1 and 3 femtomolar, respectively. We anticipate that the sensitivity provided by frequency locked optical microcavities can enable a new standard in antidoping research.
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Affiliation(s)
- Erol Ozgur
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721 USA
| | - Kara Ellen Roberts
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721 USA
| | - Ekin Ozge Ozgur
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721 USA
| | | | | | - Zhikun Wang
- College of Optical Sciences, University of Arizona, Tucson, AZ, 85721 USA
| | - Judith Su
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, 85721 USA
- College of Optical Sciences, University of Arizona, Tucson, AZ, 85721 USA
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6
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Chitosan: An undisputed bio-fabrication material for tissue engineering and bio-sensing applications. Int J Biol Macromol 2018; 110:110-123. [DOI: 10.1016/j.ijbiomac.2018.01.006] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/19/2017] [Accepted: 01/02/2018] [Indexed: 12/31/2022]
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7
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Wang R, Wang AJ, Liu WD, Yuan PX, Xue Y, Luo X, Feng JJ. A novel label-free electrochemical immunosensor for ultra-sensitively detecting prostate specific antigen based on the enhanced catalytic currents of oxygen reduction catalyzed by core-shell Au@Pt nanocrystals. Biosens Bioelectron 2018; 102:276-281. [DOI: 10.1016/j.bios.2017.11.041] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 11/09/2017] [Accepted: 11/10/2017] [Indexed: 01/03/2023]
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8
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A new label-free electrochemical immunosensor based on dendritic core-shell AuPd@Au nanocrystals for highly sensitive detection of prostate specific antigen. Biosens Bioelectron 2018; 99:458-463. [DOI: 10.1016/j.bios.2017.08.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/24/2017] [Accepted: 08/07/2017] [Indexed: 01/08/2023]
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Liu Y, Li J, Tschirhart T, Terrell JL, Kim E, Tsao C, Kelly DL, Bentley WE, Payne GF. Connecting Biology to Electronics: Molecular Communication via Redox Modality. Adv Healthc Mater 2017; 6. [PMID: 29045017 DOI: 10.1002/adhm.201700789] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/18/2017] [Indexed: 12/13/2022]
Abstract
Biology and electronics are both expert at for accessing, analyzing, and responding to information. Biology uses ions, small molecules, and macromolecules to receive, analyze, store, and transmit information, whereas electronic devices receive input in the form of electromagnetic radiation, process the information using electrons, and then transmit output as electromagnetic waves. Generating the capabilities to connect biology-electronic modalities offers exciting opportunities to shape the future of biosensors, point-of-care medicine, and wearable/implantable devices. Redox reactions offer unique opportunities for bio-device communication that spans the molecular modalities of biology and electrical modality of devices. Here, an approach to search for redox information through an interactive electrochemical probing that is analogous to sonar is adopted. The capabilities of this approach to access global chemical information as well as information of specific redox-active chemical entities are illustrated using recent examples. An example of the use of synthetic biology to recognize external molecular information, process this information through intracellular signal transduction pathways, and generate output responses that can be detected by electrical modalities is also provided. Finally, exciting results in the use of redox reactions to actuate biology are provided to illustrate that synthetic biology offers the potential to guide biological response through electrical cues.
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Affiliation(s)
- Yi Liu
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Jinyang Li
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Tanya Tschirhart
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Jessica L. Terrell
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Eunkyoung Kim
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Chen‐Yu Tsao
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Deanna L. Kelly
- Maryland Psychiatric Research Center University of Maryland School of Medicine Baltimore MD 21228 USA
| | - William E. Bentley
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
| | - Gregory F. Payne
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA
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Abstract
Human chorionic gonadotropin (HCG) is a glycoprotein secreted by placental trophoblast cells in pregnancy. HCG is a heterodimer composed of two different α- and β-subunits, with the latter being unique to HCG. As well as being the most important diagnostic markers for pregnancy, HCG is also a tumor marker, therefore, quantitative detection of HCG is of great value. Numerous advanced technologies have been developed for HCG concentration detection including electrochemical immunoassay, chemiluminescent immunoassay, fluorescence immunoassay, resonance scattering spectrometry, atomic emission spectrometry, radioimmunoassay, MS and so on. Some have pursued simple and easy operation, while others have emphasized on accuracy and applications in clinical medicine. This review provides a comprehensive summary of various methods of detecting HCG.
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11
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Manivel P, Paulpandi M, Murugan K, Benelli G, Ilanchelian M. Probing the interaction of thionine with human serum albumin by multispectroscopic studies and its in vitro cytotoxic activity toward MCF-7 breast cancer cells. J Biomol Struct Dyn 2016; 35:3012-3031. [DOI: 10.1080/07391102.2016.1235513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Perumal Manivel
- Department of Chemistry, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Manickam Paulpandi
- Proteomics Lab, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Kadarkarai Murugan
- Proteomics Lab, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Giovanni Benelli
- Insect Behavior Group, Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, Pisa 56124, Italy
- The BioRobotics Institute, Sant’Anna School of Advanced Studies, Viale Rinaldo Piaggio 34, Pontedera 56025, Italy
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A Point-of-Care Immunosensor for Human Chorionic Gonadotropin in Clinical Urine Samples Using a Cuneated Polysilicon Nanogap Lab-on-Chip. PLoS One 2015; 10:e0137891. [PMID: 26368287 PMCID: PMC4569379 DOI: 10.1371/journal.pone.0137891] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/24/2015] [Indexed: 01/03/2023] Open
Abstract
Human chorionic gonadotropin (hCG), a glycoprotein hormone secreted from the placenta, is a key molecule that indicates pregnancy. Here, we have designed a cost-effective, label-free, in situ point-of-care (POC) immunosensor to estimate hCG using a cuneated 25 nm polysilicon nanogap electrode. A tiny chip with the dimensions of 20.5 × 12.5 mm was fabricated using conventional lithography and size expansion techniques. Furthermore, the sensing surface was functionalized by (3-aminopropyl)triethoxysilane and quantitatively measured the variations in hCG levels from clinically obtained human urine samples. The dielectric properties of the present sensor are shown with a capacitance above 40 nF for samples from pregnant women; it was lower with samples from non-pregnant women. Furthermore, it has been proven that our sensor has a wide linear range of detection, as a sensitivity of 835.88 μA mIU-1 ml-2 cm-2 was attained, and the detection limit was 0.28 mIU/ml (27.78 pg/ml). The dissociation constant Kd of the specific antigen binding to the anti-hCG was calculated as 2.23 ± 0.66 mIU, and the maximum number of binding sites per antigen was Bmax = 22.54 ± 1.46 mIU. The sensing system shown here, with a narrow nanogap, is suitable for high-throughput POC diagnosis, and a single injection can obtain triplicate data or parallel analyses of different targets.
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13
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Bahadır EB, Sezgintürk MK. Electrochemical biosensors for hormone analyses. Biosens Bioelectron 2015; 68:62-71. [DOI: 10.1016/j.bios.2014.12.054] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/20/2014] [Accepted: 12/22/2014] [Indexed: 11/26/2022]
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14
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A novel immunosensor for detection of beta-galactoside alpha-2, 6-sialyltransferase in serum based on gold nanoparticles loaded on Prussian blue-based hybrid nanocomposite film. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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15
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Ma L, Wen G, Ye L, Lu Z, Luo Y, Liang A, Jiang Z. SERS quantitative detection of trace human chorionic gonadotropin using a label-free Victoria blue B as probe in the aggregated immunonanogold sol substrate. LUMINESCENCE 2014; 30:790-7. [PMID: 25428635 DOI: 10.1002/bio.2821] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/09/2014] [Accepted: 10/22/2014] [Indexed: 11/09/2022]
Abstract
Nanogold particles (NG) were modified by anti-rabbit antibody (RAb) against human chorionic gonadotropin to obtain an immunonanogold probe (ING). In pH 7.0 Na2HPO4-citrate buffer solution containing KCl, ING probes formed large aggregates in which Victoria blue B (VBB) molecules were adsorbed on the surface and which exhibited strong surface-enhanced Raman scattering (SERS) at a peak of 1612 cm(-1). After addition of human chorionic gonadotropin (hCG) an immune reaction with the ING probe occurred to form dispersive ING-hCG complexes with non-SERS activity that led to a decreased SERS peak at 1612 cm(-1). The decreased SERS intensity was linear to the concentration of hCG over 2.4-73.2 ng/mL. The ING reaction was studied in detail by SERS, scanning electron microscope (SEM), resonance Rayleigh scattering (RRS), surface plasmon resonance (SPR) absorption and laser scattering techniques. SERS quenching was observed and discussed.
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Affiliation(s)
- Lu Ma
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Lingling Ye
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Zujun Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Yanghe Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
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Manivel P, Anandakumar S, Ilanchelian M. Exploring the interaction of the photodynamic therapeutic agent thionine with bovine serum albumin: multispectroscopic and molecular docking studies. LUMINESCENCE 2014; 30:729-39. [DOI: 10.1002/bio.2812] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/24/2014] [Accepted: 10/06/2014] [Indexed: 01/02/2023]
Affiliation(s)
- Perumal Manivel
- Department of Chemistry; Bharathiar University; Coimbatore India
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Abstract
Affinity-based biosensors (ABBs) have started to be considered in sport medicine and doping control analysis because they are cheap, easy to use and sufficiently selective analytical devices, characterized by a reversible interaction with the analyte under investigation allowing the use of the same sensor for multiple analyses. In this review we describe the main categories of substances reported in the World Anti-Doping Agency Prohibited List and how ABBs may contribute to their detection. Although several ABBs proposed in the last few years display limit of detections that are in principle matching the World Anti-Doping Agency requirements, their application in the framework of 'traditional' antidoping tests seems quite unlikely, mainly because of the still insufficient selectivity especially in the case of 'pseudo-endogenous' compounds, and on the lack of complete information regarding potential matrix effects in real samples and following their routine use. At the same time, ABBs could contribute to fill a significant information gap concerning complementary evidence that can be obtained from their use 'on the spot', as well as to preselect a risk population of individuals to be targeted for a full antidoping test; while in sport medicine they could contribute to obtaining analytical information of physiological relevance from the measurement of specific parameters or markers before, during and after physical exercise.
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Teixeira S, Conlan RS, Guy O, Sales MGF. Novel single-wall carbon nanotube screen-printed electrode as an immunosensor for human chorionic gonadotropin. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.105] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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A novel electrochemical DNA biosensor based on HRP-mimicking hemin/G-quadruplex wrapped GOx nanocomposites as tag for detection of Escherichia coli O157:H7. Biosens Bioelectron 2014; 63:1-6. [PMID: 25048446 DOI: 10.1016/j.bios.2014.07.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/25/2014] [Accepted: 07/03/2014] [Indexed: 02/04/2023]
Abstract
A novel sensitive electrochemical DNA biosensor was developed for amperometric detection of Escherichia coli O157:H7 (E. coli O157:H7). The graphene oxide (GOx) was utilized as nanocarrier to immobilize thionine (Thi) and the Au nanoparticles coated SiO2 nanocomposites (Au-SiO2) by electrostatic adsorption and the adsorption among nanomaterials. Then a large amounts of signal DNA (S2) and G-quadruplex were immobilized on the GOx-Thi-Au@SiO2 nanocomposites. Finally, hemin was intercalated into the G-quadruplex to obtain the hemin/G-quadruplex structure as HRP-mimicking DNAzyme. On the basis of the signal amplification strategy of GOx-Thi-Au@SiO2 nanocomposites and DNAzyme, the developed DNA biosensor could respond to 0.01 nM (S/N=3) with a linear calibration range from 0.02 to 50.0 nM E. coli O157:H7, which could be well accepted for early clinical detection. The studied system provides new opportunities, and might speed up disease diagnosis, treatment and prevention with pathogen.
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Label-free electrochemical immunosensor based on gold–silicon carbide nanocomposites for sensitive detection of human chorionic gonadotrophin. Biosens Bioelectron 2014; 57:199-206. [DOI: 10.1016/j.bios.2014.02.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/08/2014] [Accepted: 02/10/2014] [Indexed: 02/03/2023]
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Ortiz M, Wilson L, Botero ML, Baker P, Iwuoha E, Fragoso A, O'Sullivan CK. Supramolecular Amperometric Immunosensor for Detection of Human Chorionic Gonadotropin. ELECTROANAL 2014. [DOI: 10.1002/elan.201400103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Teixeira S, Conlan RS, Guy OJ, Sales MGF. Label-free human chorionic gonadotropin detection at picogram levels using oriented antibodies bound to graphene screen-printed electrodes. J Mater Chem B 2014; 2:1852-1865. [DOI: 10.1039/c3tb21235a] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Paul P, Kumar GS. Targeting ribonucleic acids by toxic small molecules: structural perturbation and energetics of interaction of phenothiazinium dyes thionine and toluidine blue O to tRNA phe. JOURNAL OF HAZARDOUS MATERIALS 2013; 263 Pt 2:735-745. [PMID: 24231328 DOI: 10.1016/j.jhazmat.2013.10.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 09/17/2013] [Accepted: 10/19/2013] [Indexed: 06/02/2023]
Abstract
This study was designed to examine the toxic interaction of two phenothiazinium dyes thionine (TO) and toluidine blue O (TBO) with tRNA(phe) by spectroscopic and calorimetric techniques. While phenothiazinium dye complexation with DNA is known, their bindings to RNA are not fully investigated. The non cooperative binding of both the dyes to tRNA was revealed from absorbance and fluorescence studies. From absorption, steady-state emission, the effect of ferrocyanide ion-induced steady-state fluorescence quenching, circular dichroism, the mode of binding of these dyes into the tRNA helix has been substantiated to be principally by intercalative in nature. Both dyes enhanced the thermal stability of tRNA. Circular dichroism studies provided evidence for the structural perturbations associated with the tRNA structure with induction of optical activity in the CD inactive dye molecules. Results from isothermal titration calorimetry experiments suggested that the binding of both dyes was predominantly entropy driven with a smaller but favorable enthalpy term that increased with temperature. The binding was dependent on the Na(+) concentration, but had a larger non-electrostatic contribution to the Gibbs energy. A small heat capacity value and the enthalpy-entropy compensation in the energetics of the interaction characterized the binding of the dyes to tRNA. This study confirms that the tRNA(phe) binding affinity is greater for TO compared to TBO. The utility of the present work lies in understanding the potential binding and consequent damage to tRNA by these toxic dyes in their development as therapeutic agents.
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Affiliation(s)
- Puja Paul
- Biophysical Chemistry Laboratory, Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata 700032, India
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Wang X, Miao J, Xia Q, Yang K, Huang X, Zhao W, Shen J. A high-sensitivity immunosensor for detection of tumor marker based on functionalized mesoporous silica nanoparticles. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.099] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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An electrochemical immunosensor for sensitive detection of Escherichia coli O157:H7 using C60 based biocompatible platform and enzyme functionalized Pt nanochains tracing tag. Biosens Bioelectron 2013; 49:485-91. [PMID: 23811483 DOI: 10.1016/j.bios.2013.06.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 06/04/2013] [Accepted: 06/05/2013] [Indexed: 01/05/2023]
Abstract
A sensitive and efficient electrochemical immunosensor was designed for amperometric detection of heat-killed Escherichia coli O157:H7 (E. coli O157:H7). The immunosensing platform was first composed of fullerene (C60), ferrocene (Fc) and thiolated chitosan (CHI-SH) composite nano-layer which could offer rich -SH functional groups and maintain good biocompatibility. Then the Au nanoparticles coated SiO2 nanocomposites (Au-SiO2) were assembled on the CHI-SH/Fc/C60 composite. Next, the large amount of avidin (SA) was coated on the Au-SiO2 surface, which was used to immobilize biotinylated capture antibodies of E. coli O157:H7 (bio-Ab1) through the covalent reaction between biotin and avidin. With surface area enhancement by C60 and Au-SiO2, and directional immobilization by avidin-biotin system, the amount of immobilized bio-Ab1 can be enhanced obviously. For signal amplification, the glucose oxidase (GOD) loaded Pt nanochains (PtNCs) were used as tracing tag to label signal antibodies (Ab2). With a sandwich-type immunoreaction, the concentration volume of heat-killed E. coli O157:H7 ranged from 3.2 × 10(1) to 3.2 × 10(6)CFU/mL with a limit of detection down to 15 CFU/mL (S/N=3), which could be well accepted for early clinical detection. The studied system provides new opportunities, and might speed up disease diagnosis, treatment and prevention with pathogen.
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Suginta W, Khunkaewla P, Schulte A. Electrochemical Biosensor Applications of Polysaccharides Chitin and Chitosan. Chem Rev 2013; 113:5458-79. [DOI: 10.1021/cr300325r] [Citation(s) in RCA: 341] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wipa Suginta
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
| | - Panida Khunkaewla
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
| | - Albert Schulte
- Biochemistry and Electrochemistry
Research Unit, Schools
of Chemistry and Biochemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima
30000, Thailand
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Luo X, Davis JJ. Electrical biosensors and the label free detection of protein disease biomarkers. Chem Soc Rev 2013; 42:5944-62. [DOI: 10.1039/c3cs60077g] [Citation(s) in RCA: 331] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Wang X, Zhou M, Zhu Y, Miao J, Mao C, Shen J. Preparation of a novel immunosensor for tumor biomarker detection based on ATRP technique. J Mater Chem B 2013; 1:2132-2138. [DOI: 10.1039/c3tb00003f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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An amperometric immunosensor based on multi-walled carbon nanotubes-thionine-chitosan nanocomposite film for chlorpyrifos detection. SENSORS 2012; 12:17247-61. [PMID: 23443396 PMCID: PMC3571836 DOI: 10.3390/s121217247] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/10/2012] [Accepted: 12/11/2012] [Indexed: 11/16/2022]
Abstract
In this work, a novel amperometric immunosensor based on multi-walled carbon nanotubes-thionine-chitosan (MWCNTs-THI-CHIT) nanocomposite film as electrode modified material was developed for the detection of chlorpyrifos residues. The nanocomposite film was dropped onto a glassy carbon electrode (GCE), and then the anti-chlorpyrifos monoclonal antibody was covalently immobilized onto the surface of MWCNTs-THI-CHIT/GCE using the crosslinking agent glutaraldehyde (GA). The modification procedure was characterized by using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Under the optimized conditions, a linear relationship between the relative change in peak current of different pulse voltammetry (DPV) and the logarithm of chlorpyrifos solution concentration was obtained in the range from 0.1 to 1.0 × 105 ng/mL with a detection limit of 0.046 ng/mL. The proposed chlorpyrifos immunosensor exhibited high reproducibility, stability, and good selectivity and regeneration, making it a potential alternative tool for ultrasensitive detection of chlorpyrifos residues in vegetables and fruits.
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Carson L, Hibbert K, Akindoju F, Johnson C, Stewart M, Kelly-Brown C, Beharie G, Fisher T, Stone J, Stoddart D, Oki A, Neelgund GM, Regisford G, Traisawatwong P, Zhou J, Luo Z. Synthesis, characterization and stability of chitosan and poly(methyl methacrylate) grafted carbon nanotubes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:380-6. [PMID: 22722071 PMCID: PMC3455141 DOI: 10.1016/j.saa.2012.05.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 05/04/2012] [Accepted: 05/17/2012] [Indexed: 06/01/2023]
Abstract
The single walled carbon nanotubes (CNTs) were effectively functionalized through grafting with chitosan (CTS) and poly(methyl methacrylate) (PMMA). Prior to grafting reaction, the carboxylated SWNCTs (SWNCTs-COOH) were obtained by treating pristine CNTs with a mixture of 3:1 (v/v) H(2)SO(4) and HNO(3), and the successive treatment of SWNCTs-COOH with SOCl(2) yielded the acylated CNTs (CNTs-COCl). The functionalized derivatives of CNTs were characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, atomic force microscopy, scanning electron microscopy and transmission electron microscopy. Both CTS and PMMA grafted CNTs showed better dispersability in acetic acid and tetrahydrofuran, in addition to higher stability in solution.
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Affiliation(s)
- Laura Carson
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA
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Gao X, Zhang Y, Wu Q, Chen H, Chen Z, Lin X. One step electrochemically deposited nanocomposite film of chitosan–carbon nanotubes–gold nanoparticles for carcinoembryonic antigen immunosensor application. Talanta 2011; 85:1980-5. [DOI: 10.1016/j.talanta.2011.07.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 07/04/2011] [Accepted: 07/07/2011] [Indexed: 10/18/2022]
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Thionine interaction to DNA: comparative spectroscopic studies on double stranded versus single stranded DNA. J Fluoresc 2011; 22:71-80. [PMID: 21830040 DOI: 10.1007/s10895-011-0931-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 07/28/2011] [Indexed: 10/17/2022]
Abstract
Interaction of thionine with double stranded and single stranded calf thymus DNA has been studied by absorbance, fluorescence, competition dialysis, circular dichroism and isothermal titration calorimetry. Binding to the native double stranded DNA conformation induced strong quenching in fluorescence spectrum of thionine. Linear Scatchard plots indicated the binding to be of one type and the affinity values evaluated to be of the order of 10(5) M(-1) with double stranded DNA. Fluorescence quenching was much weaker with single stranded DNA and the binding affinity was about one order lower. Ferrocyanide quenching studies revealed that the fluorescence emission of dye molecules bound to the double stranded DNA was quenched much less compared to those bound to the single stranded DNA. Furthermore, there was significant emission polarization for the bound dye molecules and strong energy transfer from the DNA base pairs to the dye molecules indicating intercalative binding to ds DNA. Salt dependence of the binding phenomenon revealed that electrostatic forces played a significant role in the binding process. The intercalation of the dye molecules to double stranded DNA and simple stacking to single strands was proved from these fluorescence techniques. Support to the fluorescence results have been derived from absorption, circular dichroic and dialysis results. Calorimetric studies suggested that the binding to ds DNA conformation was both enthalpy and entropy favoured while that to ss DNA was predominantly entropy favoured.
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Chitosan-Based Macromolecular Biomaterials for the Regeneration of Chondroskeletal and Nerve Tissue. ACTA ACUST UNITED AC 2011. [DOI: 10.1155/2011/303708] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The use of materials, containing the biocompatible and bioresorbable biopolymer poly(1→4)-2-amino-2-deoxy-β-D-glucan, containing some N-acetyl-glucosamine units (chitosan, CHI) and/or its derivatives, to fabricate devices for the regeneration of bone, cartilage and nerve tissue, was reviewed. The CHI-containing devices, to be used for bone and cartilage regeneration and healing, were tested mainly for in vitro cell adhesion and proliferation and for insertion into animals; only the use of CHI in dental surgery has reached the clinical application. Regarding the nerve tissue, only a surgical repair of a 35 mm-long nerve defect in the median nerve of the right arm at elbow level with an artificial nerve graft, comprising an outer microporous conduit of CHI and internal oriented filaments of poly(glycolic acid), was reported. As a consequence, although many positive results have been obtained, much work must still be made, especially for the passage from the experimentation of the CHI-based devices, in vitro and in animals, to their clinical application.
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