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Janicka P, Baluta S, Winiarski J, Halicka-Stępień K, Pogorzelska A, Cabaj J, Pala K, Bażanów B. Sensitive electrochemical gold nanoparticle-based immunosensor for norovirus detection in food samples. RSC Adv 2024; 14:6028-6040. [PMID: 38370455 PMCID: PMC10870109 DOI: 10.1039/d3ra08586d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/12/2024] [Indexed: 02/20/2024] Open
Abstract
Norovirus (NoV) infection is one of the most common non-bacterial causes of gastroenteritis among the population worldwide. From the point of view of medical diagnostics, it is important to develop a system that would sensitively and selectively detect norovirus from a patient's sample in order to control and limit its spread. In this paper, we present a stable and sensitive NoV (mouse model) detection matrix in infected food samples. The bio-platform was made of a modified gold electrode with a self-assembled l-cysteine monolayer, covered with gold nanoparticles, a linker and an antibody specific to the VP1 surface protein of the virus. Binding of the VP1 protein to the antibody caused a decrease in the current strength confirmed by electrochemical techniques - cyclic voltammetry (CV) and differential pulse voltammetry. The reduction of the current was proportional to the concentration of NoV sample. The biosensors showed high sensitivity and linearity in a range from 1 × 10-9 to 1 × 10-18 TCID50, with the detection limit of 1 × 10-18 TCID50. CV showed a diffusion-controlled process. In addition, each modification step was confirmed by scanning electron microscopy, electrochemical impedance spectroscopy, and CV. The described immunosensor showed excellent recovery values, good linearity and long-term stability, crucial parameters for biosensor construction.
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Affiliation(s)
- Paulina Janicka
- Department of Pathology, University of Environmental and Life Sciences in Wrocław Norwida 31 50-375 Wrocław Poland
- Food4Future Technologies Sp. z o. o. ul. Tarasa Szewczenki 24 51-351 Wrocław Poland
| | - Sylwia Baluta
- Institute of Advanced Materials, Wrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Juliusz Winiarski
- Group of Surface Technology, Department of Advanced Material Technologies, Wroclaw University of Science and Technology Wybrzeże Wyspiańskiego 27 Wroclaw 50-370 Poland
| | - Kinga Halicka-Stępień
- Institute of Advanced Materials, Wrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Aleksandra Pogorzelska
- Department of Pathology, University of Environmental and Life Sciences in Wrocław Norwida 31 50-375 Wrocław Poland
| | - Joanna Cabaj
- Institute of Advanced Materials, Wrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Katarzyna Pala
- Water Science and Technology Institute- H2O SciTech ul. Tarasa Szewczenki 24 51-351 Wrocław Poland
| | - Barbara Bażanów
- Department of Pathology, University of Environmental and Life Sciences in Wrocław Norwida 31 50-375 Wrocław Poland
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Theranostic Potentials of Gold Nanomaterials in Hematological Malignancies. Cancers (Basel) 2022; 14:cancers14133047. [PMID: 35804818 PMCID: PMC9264814 DOI: 10.3390/cancers14133047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/03/2022] [Accepted: 06/17/2022] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Hematological malignancies (HMs) cover 50% of all malignancies, and people of all ages can be affected by these deadly diseases. In many cases, conventional diagnostic tools fail to diagnose HMs at an early stage, due to heterogeneity and the long-term indolent phase of HMs. Therefore, many patients start their treatment at the late stage of HMs and have poor survival. Gold nanomaterials (GNMs) have shown promise as a cancer theranostic agent. GNMs are 1 nm to 100 nm materials having magnetic resonance and surface-plasmon-resonance properties. GNMs conjugated with antibodies, nucleic acids, peptides, photosensitizers, chemotherapeutic drugs, synthetic-drug candidates, bioactive compounds, and other theranostic biomolecules may enhance the efficacy and efficiency of both traditional and advanced theranostic approaches to combat HMs. Abstract Hematological malignancies (HMs) are a heterogeneous group of blood neoplasia generally characterized by abnormal blood-cell production. Detection of HMs-specific molecular biomarkers (e.g., surface antigens, nucleic acid, and proteomic biomarkers) is crucial in determining clinical states and monitoring disease progression. Early diagnosis of HMs, followed by an effective treatment, can remarkably extend overall survival of patients. However, traditional and advanced HMs’ diagnostic strategies still lack selectivity and sensitivity. More importantly, commercially available chemotherapeutic drugs are losing their efficacy due to adverse effects, and many patients develop resistance against these drugs. To overcome these limitations, the development of novel potent and reliable theranostic agents is urgently needed to diagnose and combat HMs at an early stage. Recently, gold nanomaterials (GNMs) have shown promise in the diagnosis and treatment of HMs. Magnetic resonance and the surface-plasmon-resonance properties of GNMs have made them a suitable candidate in the diagnosis of HMs via magnetic-resonance imaging and colorimetric or electrochemical sensing of cancer-specific biomarkers. Furthermore, GNMs-based photodynamic therapy, photothermal therapy, radiation therapy, and targeted drug delivery enhanced the selectivity and efficacy of anticancer drugs or drug candidates. Therefore, surface-tuned GNMs could be used as sensitive, reliable, and accurate early HMs, metastatic HMs, and MRD-detection tools, as well as selective, potent anticancer agents. However, GNMs may induce endothelial leakage to exacerbate cancer metastasis. Studies using clinical patient samples, patient-derived HMs models, or healthy-animal models could give a precise idea about their theranostic potential as well as biocompatibility. The present review will investigate the theranostic potential of vectorized GNMs in HMs and future challenges before clinical theranostic applications in HMs.
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Khursheed R, Dua K, Vishwas S, Gulati M, Jha NK, Aldhafeeri GM, Alanazi FG, Goh BH, Gupta G, Paudel KR, Hansbro PM, Chellappan DK, Singh SK. Biomedical applications of metallic nanoparticles in cancer: Current status and future perspectives. Pharmacotherapy 2022; 150:112951. [PMID: 35447546 DOI: 10.1016/j.biopha.2022.112951] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 02/06/2023]
Abstract
The current advancements in nanotechnology are as an outcome of the development of engineered nanoparticles. Various metallic nanoparticles have been extensively explored for various biomedical applications. They attract lot of attention in biomedical field due to their significant inert nature, and nanoscale structures, with size similar to many biological molecules. Their intrinsic characteristics which include electronic, optical, physicochemical and, surface plasmon resonance, that can be changed by altering certain particle characteristics such as size, shape, environment, aspect ratio, ease of synthesis and functionalization properties have led to numerous applications in various fields of biomedicine. These include targeted drug delivery, sensing, photothermal and photodynamic therapy, imaging, as well as the modulation of two or three applications. The current article also discusses about the various properties of metallic nanoparticles and their applications in cancer imaging and therapeutics. The associated bottlenecks related to their clinical translation are also discussed.
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Affiliation(s)
- Rubiya Khursheed
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Sukriti Vishwas
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Plot No.32-34 Knowledge Park III, Greater Noida, Uttar Pradesh 201310, India
| | | | - Fayez Ghadeer Alanazi
- Lemon Pharmacies, Eastern region, Kingdom of Saudi Arabia, Hafr Al Batin 39957, Saudi Arabia
| | - Bey Hing Goh
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur, India; Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, India
| | - Keshav Raj Paudel
- Centre of Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney 2007, Australia
| | - Philip M Hansbro
- Centre of Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney 2007, Australia.
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia.
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Alizadeh M, Azar PA, Mozaffari SA, Karimi-Maleh H, Tamaddon AM. A DNA Based Biosensor Amplified With ZIF-8/Ionic Liquid Composite for Determination of Mitoxantrone Anticancer Drug: An Experimental/Docking Investigation. Front Chem 2020; 8:814. [PMID: 33195033 PMCID: PMC7606923 DOI: 10.3389/fchem.2020.00814] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/03/2020] [Indexed: 12/16/2022] Open
Abstract
An ultrasensitive DNA electrochemical biosensor based on the carbon paste electrode (CPE) amplified with ZIF-8 and 1-butyl-3-methylimidazolium methanesulfonate (BMIMS) was fabricated in this research. The DNA/BMIMS/ZIF-8/CPE was used for the selective determination of a mitoxantrone anticancer drug in aqueous solution, resulting in a good catalytic effect and a powerful ability for determining mitoxantrone. Also, the interaction of the mitoxantrone anticancer drug with guanine bases of ds-DNA was used as a powerful strategy in the suggested biosensor, which was confirmed with docking investigation. Docking study of mitoxantrone into the ds-DNA sequence showed the intercalative binding mode of mitoxantrone into the nitrogenous-based pairs of ds-DNA. The effective factors such as ds-DNA concentration, temperature, buffer types, and incubation time were also optimized for the fabricated mitoxantrone biosensor. The results showed that, under optimum conditions (T = 25°C; incubation time=12 min; pH= 4.8 acetate buffer solution and [DNA] = 50 mg/L), the DNA/BMIMS/ZIF-8/CPE could be used in mitoxantrone assay in a concentration ranging from 8.0 nM to 110 μM with a detection limit of 3.0 nM. In addition, recovery data between 99.18 and 102.08% were obtained for the determination of mitoxantrone in the injection samples using DNA/ZIF-8/BMIMF/CPE as powerful biosensors.
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Affiliation(s)
- Marzieh Alizadeh
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Parviz Aberoomand Azar
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sayed Ahmad Mozaffari
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Hassan Karimi-Maleh
- Laboratory of Nanotechnology, Department of Chemical Engineering, Quchan University of Technology, Quchan, Iran
| | - Ali-Mohammad Tamaddon
- Center for Nanotechnology in Drug Delivery, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Cumbo C, Anelli L, Specchia G, Albano F. Monitoring of Minimal Residual Disease (MRD) in Chronic Myeloid Leukemia: Recent Advances. Cancer Manag Res 2020; 12:3175-3189. [PMID: 32440215 PMCID: PMC7211966 DOI: 10.2147/cmar.s232752] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/23/2020] [Indexed: 12/14/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm caused by the BCR-ABL1 fusion gene generation as a consequence of the t(9;22)(q34;q11) rearrangement. The identification of the BCR-ABL1 transcript was of critical importance for both CML diagnosis and minimal residual disease (MRD) monitoring. In this review, we report the recent advances in the CML MRD monitoring based on RNA, DNA and protein analysis. The detection of the BCR-ABL1 transcript by the quantitative reverse-transcriptase polymerase chain reaction is the gold standard method, but other systems based on digital PCR or on GeneXpert technology have been developed. In the last years, DNA-based assays showed high sensitivity and specificity, and flow cytometric approaches for the detection of the BCR-ABL1 fusion protein have also been tested. Recently, new MRD monitoring systems based on the detection of molecular markers other than the BCR-ABL1 fusion were proposed. These approaches, such as the identification of CD26+ leukemic stem cells, microRNAs and mitochondrial DNA mutations, just remain preliminary and need to be implemented. In the precision medicine era, the constant improvement of the CML MRD monitoring practice could allow clinicians to choose the best therapeutic algorithm and a more accurate selection of CML patients eligible for the tyrosine kinase inhibitors discontinuation.
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Affiliation(s)
- Cosimo Cumbo
- Department of Emergency and Organ Transplantation (D.E.T.O.), Hematology Section, University of Bari, Bari 70124, Italy
| | - Luisa Anelli
- Department of Emergency and Organ Transplantation (D.E.T.O.), Hematology Section, University of Bari, Bari 70124, Italy
| | - Giorgina Specchia
- Department of Emergency and Organ Transplantation (D.E.T.O.), Hematology Section, University of Bari, Bari 70124, Italy
| | - Francesco Albano
- Department of Emergency and Organ Transplantation (D.E.T.O.), Hematology Section, University of Bari, Bari 70124, Italy
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Tamayo AIB, Rizo LSL, de Armas MB, Ferreira AAP, Manzani D, Yamanaka H, Guas AME. Biotin self-assembled monolayer for impedimetric genosensor for direct detection of HIV-1. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Modeling of ultrasensitive DNA hybridization detection based on gold nanoparticles/carbon-nanotubes/chitosan-modified electrodes. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124219] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Vajedi FS, Dehghani H. A high-sensitive electrochemical DNA biosensor based on a novel ZnAl/layered double hydroxide modified cobalt ferrite-graphene oxide nanocomposite electrophoretically deposited onto FTO substrate for electroanalytical studies of etoposide. Talanta 2020; 208:120444. [DOI: 10.1016/j.talanta.2019.120444] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 11/17/2022]
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9
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Karimi-Maleh H, Karimi F, Alizadeh M, Sanati AL. Electrochemical Sensors, a Bright Future in the Fabrication of Portable Kits in Analytical Systems. CHEM REC 2019; 20:682-692. [PMID: 31845511 DOI: 10.1002/tcr.201900092] [Citation(s) in RCA: 214] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/28/2019] [Accepted: 12/04/2019] [Indexed: 12/16/2022]
Abstract
Analysis of food, pharmaceutical, and environmental compounds is an inevitable issue to evaluate quality of the compounds used in human life. Quality of drinking water, food products, and pharmaceutical compounds is directly associated with human health. Presence of forbidden additives in food products, toxic compounds in water samples and drugs with low quality lead to important problems for human health. Therefore, attention to analytical strategy for investigation of quality of food, pharmaceutical, and environmental compounds and monitoring presence of forbidden compounds in materials used by humans has increased in recent years. Analytical methods help to identify and quantify both permissible and unauthorized compounds present in the materials used in human daily life. Among analytical methods, electrochemical methods have been shown to have more advantages compared to other analytical methods due to their portability and low cost. Most of big companies have applied this type of analytical methods because of their fast and selective analysis. Due to simple operation and high diversity of electroanalytical sensors, these types of sensors are expected to be the future generation of analytical systems. Therefore, many scientists and researchers have focused on designing and fabrication of electroanalytical sensors with good selectivity and high sensitivity for different types of compounds such as drugs, food, and environmental pollutants. In this paper, we described the mechanism and different examples of DNA, enzymatic and electro-catalytic methods for electroanalytical determination of drug, food and environmental compounds.
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Affiliation(s)
- Hassan Karimi-Maleh
- School of Resources and Enviroment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, P.R. China.,Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran.,Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, 2028, Johannesburg, South Africa
| | - Fatemeh Karimi
- School of Resources and Enviroment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, P.R. China.,Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran
| | - Marzieh Alizadeh
- Center for Nanotechnology in Drug Delivery, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
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Jahandari S, Taher MA, Karimi-Maleh H, Khodadadi A, Faghih-Mirzaei E. A powerful DNA-based voltammetric biosensor modified with Au nanoparticles, for the determination of Temodal; an electrochemical and docking investigation. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Abdal Dayem A, Lee SB, Cho SG. The Impact of Metallic Nanoparticles on Stem Cell Proliferation and Differentiation. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E761. [PMID: 30261637 PMCID: PMC6215285 DOI: 10.3390/nano8100761] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 09/22/2018] [Accepted: 09/25/2018] [Indexed: 12/15/2022]
Abstract
Nanotechnology has a wide range of medical and industrial applications. The impact of metallic nanoparticles (NPs) on the proliferation and differentiation of normal, cancer, and stem cells is well-studied. The preparation of NPs, along with their physicochemical properties, is related to their biological function. Interestingly, various mechanisms are implicated in metallic NP-induced cellular proliferation and differentiation, such as modulation of signaling pathways, generation of reactive oxygen species, and regulation of various transcription factors. In this review, we will shed light on the biomedical application of metallic NPs and the interaction between NPs and the cellular components. The in vitro and in vivo influence of metallic NPs on stem cell differentiation and proliferation, as well as the mechanisms behind potential toxicity, will be explored. A better understanding of the limitations related to the application of metallic NPs on stem cell proliferation and differentiation will afford clues for optimal design and preparation of metallic NPs for the modulation of stem cell functions and for clinical application in regenerative medicine.
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Affiliation(s)
- Ahmed Abdal Dayem
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
| | - Soo Bin Lee
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
| | - Ssang-Goo Cho
- Department of Stem Cell and Regenerative Biotechnology, Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul 05029, Korea.
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12
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Synergic effect of 2D nitrogen doped reduced graphene nano-sheet and ionic liquid as a new approach for fabrication of anticancer drug sensor in analysis of doxorubicin and topotecan. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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13
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Sub-femtomolar detection of DNA and discrimination of mutant strands using microwell-array assisted digital enzyme-linked oligonucleotide assay. Anal Chim Acta 2018; 1041:122-130. [PMID: 30340684 DOI: 10.1016/j.aca.2018.08.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/12/2018] [Accepted: 08/28/2018] [Indexed: 02/01/2023]
Abstract
Detection methods that do not rely on the amplification of DNA but can reach sensitivity, specificity and throughput of gold standard methods, such as qPCR, have been extensively explored in recent years. Here, we present a hydrophilic-in-hydrophobic (HIH)-microwell array platform that empowers a panel of different amplification-free DNA bioassays: digital enzyme-linked oligonucleotide assay (ELONA), ligation-assisted (LA) digital ELONA and so-called 'analog' bioassays. We developed all three bioassays by using magnetic beads for capturing DNA target, followed by hybridization of enzyme-labelled detection probes and sealing of the built complexes into the femtoliter HIH microwells to achieve the fluorescent readout of single DNA molecules. With the optimized digital ELONA bioassay, we successfully detected 97 and 200 nt-long ssDNA molecules down to 68 and 92 aM, respectively, demonstrating extremely high sensitivity of the bioassay and its flexibility towards targets of different lengths. Importantly, we also proved that the same bioassay concept was suited to detect substantially higher concentrations of ssDNA (up to picomolar levels) by quantifying the total fluorescent intensity rather than counting fluorescent events for digital quantification. Finally, we advanced this concept towards LA digital ELONA capable of differentiating wildtype strands from those carrying single-point mutations even when the former were constituting only 1% of the DNA mixture and were present at 2 fM concentration. In conclusion, the developed platform showed remarkably high sensitivity, specificity and versatility for amplification-free detection of DNA and as such can be valuable for numerous applications in medical diagnostics, gene analysis, food safety and environmental monitoring.
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Campuzano S, Yáñez-Sedeño P, Pingarrón JM. Nanoparticles for nucleic-acid-based biosensing: opportunities, challenges, and prospects. Anal Bioanal Chem 2018; 411:1791-1806. [DOI: 10.1007/s00216-018-1273-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/13/2018] [Indexed: 12/20/2022]
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15
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Electrochemical DNA sensors based on the use of gold nanoparticles: a review on recent developments. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2143-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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16
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Taei M, Hasanpour F, Dinari M, Sohrabi N, Jamshidi MS. Synthesis of 5-[(2-hydroxynaphthalen-1-yl)diazenyl]isophthalic acid and its application to electrocatalytic oxidation and determination of adrenaline, paracetamol, and tryptophan. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.07.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Avelino KY, Frias IA, Lucena-Silva N, Gomes RG, de Melo CP, Oliveira MD, Andrade CA. Attomolar electrochemical detection of the BCR/ABL fusion gene based on an amplifying self-signal metal nanoparticle-conducting polymer hybrid composite. Colloids Surf B Biointerfaces 2016; 148:576-584. [DOI: 10.1016/j.colsurfb.2016.09.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/05/2016] [Accepted: 09/21/2016] [Indexed: 02/07/2023]
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18
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Minaei ME, Saadati M, Najafi M, Honari H. Label-free, PCR-free DNA Hybridization Detection of Escherichia coli
O157 : H7 Based on Electrochemical Nanobiosensor. ELECTROANAL 2016. [DOI: 10.1002/elan.201600198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Mostafa Najafi
- Department of Chemistry; Imam Hossein University; Tehran Iran
| | - Hossein Honari
- Department of Biology; Imam Hossein University; Tehran Iran
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Ranjan R, Esimbekova EN, Kratasyuk VA. Rapid biosensing tools for cancer biomarkers. Biosens Bioelectron 2016; 87:918-930. [PMID: 27664412 DOI: 10.1016/j.bios.2016.09.061] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/06/2016] [Accepted: 09/17/2016] [Indexed: 12/14/2022]
Abstract
The present review critically discusses the latest developments in the field of smart diagnostic systems for cancer biomarkers. A wide coverage of recent biosensing approaches involving aptamers, enzymes, DNA probes, fluorescent probes, interacting proteins and antibodies in vicinity to transducers such as electrochemical, optical and piezoelectric is presented. Recent advanced developments in biosensing approaches for cancer biomarker owes much credit to functionalized nanomaterials due to their unique opto-electronic properties and enhanced surface to volume ratio. Biosensing methods for a plenty of cancer biomarkers has been summarized emphasizing the key principles involved.
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Affiliation(s)
- Rajeev Ranjan
- Laboratory of Bioluminescent Biotechnologies, Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny prospect, Krasnoyarsk 660041, Russia
| | - Elena N Esimbekova
- Laboratory of Bioluminescent Biotechnologies, Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny prospect, Krasnoyarsk 660041, Russia; Institute of Biophysics SB RAS, Akademgorodok 50/50, Krasnoyarsk 660036, Russia.
| | - Valentina A Kratasyuk
- Laboratory of Bioluminescent Biotechnologies, Department of Biophysics, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny prospect, Krasnoyarsk 660041, Russia; Institute of Biophysics SB RAS, Akademgorodok 50/50, Krasnoyarsk 660036, Russia
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Pandey CM, Dewan S, Chawla S, Yadav BK, Sumana G, Malhotra BD. Controlled deposition of functionalized silica coated zinc oxide nano-assemblies at the air/water interface for blood cancer detection. Anal Chim Acta 2016; 937:29-38. [DOI: 10.1016/j.aca.2016.07.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 02/08/2023]
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21
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Cui J, Chen J, Chen S, Gao L, Xu P, Li H. Au/TiO₂ nanobelt heterostructures for the detection of cancer cells and anticancer drug activity by potential sensing. NANOTECHNOLOGY 2016; 27:095603. [PMID: 26822679 DOI: 10.1088/0957-4484/27/9/095603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cancer is a cell dysfunction disease. The detection of cancer cells is extremely important for early diagnosis and clinical treatments. At present, the pretreatment for the detection of cancer cells is costly, complicated and time-consuming. As different species of the analytes may give rise to specific voltammetric signals at distinctly different potentials, simple potential sensing has the specificity to detect different cellular species. By taking advantage of the different electrochemical characteristics of normal cells, cancer cells and biointeractions between anticancer drugs and cancer cells, we develop a specific, sensitive, direct, cost-effective and rapid method for the detection of cancer cells by electrochemical potential sensing based on Au/TiO2 nanobelt heterostructure electrodes that will be of significance in early cancer diagnosis, in vitro screening of anticancer drugs and molecular biology research.
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Affiliation(s)
- Jingjie Cui
- College of Life Information Science & Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China
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22
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Taei M, Hasanpour F, Salavati H, Banitaba S, Kazemi F. Simultaneous determination of cysteine, uric acid and tyrosine using Au-nanoparticles/poly(E)-4-(p-tolyldiazenyl)benzene-1,2,3-triol film modified glassy carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:120-128. [DOI: 10.1016/j.msec.2015.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 08/29/2015] [Accepted: 10/01/2015] [Indexed: 10/22/2022]
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23
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Ensafi AA, Amini M, Rezaei B, Talebi M. A novel diagnostic biosensor for distinguishing immunoglobulin mutated and unmutated types of chronic lymphocytic leukemia. Biosens Bioelectron 2015; 77:409-15. [PMID: 26436328 DOI: 10.1016/j.bios.2015.09.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/20/2015] [Accepted: 09/27/2015] [Indexed: 12/22/2022]
Abstract
In chronic lymphocytic leukemia (CLL), the immunoglobulin heavy-chain variable (IgVH) region may be mutated (Ig-mutated CLL) or unmutated (Ig-unmutated CLL); and the presence or absence of mutations in this region of CLL cells distinguishes two clinically distinct forms. It is important for physicians to distinguish between patients with Ig-unmutated CLL, where typically have more indolent disease with median survivals close to 25 years, and Ig-mutated CLL, where have more aggressive disease with median survivals around eight years. In this work, a biosensor capable of diagnosis and distinguishing between these two types of CLL was reported. The biosensor was fabricated by modifying a gold electrode with gold nanoparticles (AuNPS) followed by coating of ZAP70 oligonucleotide probe on the surface to detect specific sequence of ZAP70 gene. ZAP70 could predict the IgVH mutation status and is a good marker for differentiating Ig-mutated and Ig-unmutated CLL and serve as prognostic marker. First, we focused on achieving hybridization between probe and its complementary sequence. Hybridization between probe and target was determined with electrochemical impedance spectroscopy (EIS). Then, our efforts turned to optimize the conditions for the detection of any point mutation and also to maximize the selectivity. Under optimal conditions, the biosensor has a good calibration range between 2.0 × 10(-14) and 1.0 × 10(-9)molL(-1), with ZAP70 DNA sequence detection limit of 4.0 × 10(-15)molL(-1). We successfully detect hybridization first in synthetic samples, and ultimately in blood samples from patients. Experimental results illustrated that the nanostructured biosensor clearly discriminates between mutated and non-mutated CLL and predict the IgVH mutation status, which it has been considered as the single most informative stage independent prognostic factor in CLL.
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Affiliation(s)
- Ali A Ensafi
- Department of Analytical Chemistry, Faculty of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Maryam Amini
- Department of Analytical Chemistry, Faculty of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Behzad Rezaei
- Department of Analytical Chemistry, Faculty of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Majid Talebi
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
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24
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Strachan BC, Sloane HS, Lee JC, Leslie DC, Landers JP. Investigation of the DNA target design parameters for effective hybridization-induced aggregation of particles for the sequence-specific detection of DNA. Analyst 2015; 140:2008-15. [PMID: 25673152 DOI: 10.1039/c4an02101k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In a recent publication, we presented a label-free method for the detection of specific DNA sequences through the hybridization-induced aggregation (HIA) of a pair of oligonucleotide-adducted magnetic particles. Here we show, through the use of modified hardware, that we are able to simultaneously analyze multiple (4) samples, and detect a 26-mer ssDNA sequence at femtomolar concentrations in minutes. As such, this work represents an improvement in throughput and a 100-fold improvement in sensitivity, compared to that reported previously. Here, we also investigate the design parameters of the target sequence, in an effort to maximize the sensitivity of HIA and to use as a guide in future applications of this work. Modifications were made to the original 26-mer oligonucleotide sequence to evaluate the effects of: (1) non-complementary flanking bases, (2) target sequence length, and (3) single base mismatches on aggregation response. The aggregation response decreased as the number of the non-complementary flanking bases increased, with only a five base addition lowering the LOD by four orders of magnitude. Low sensitivity was observed with short sequences of 6 and 10 complementary bases, which were only detectable at micromolar concentrations. Target sequences with 20, 26 or 32 complementary bases provided the greatest sensitivity and were detectable at femtomolar concentrations. Additionally, HIA could effectively differentiate sequences that were fully complementary from those containing 1, 2 or 3 single base mismatches at micromolar concentrations. The robustness of the HIA system to other buffer components was explored with nine potential assay interferents that could affect hybridization (aggregation) or falsely induce aggregation. Of these, purified BSA and lysed whole blood induced a false aggregation. None of the interferents inhibited aggregation when the hybridizing target was added. Having delineated the fundamental parameters affecting HIA-target hybridization, and demonstrating that HIA had the selectivity to detect single base mismatches, this fluor-free end-point detection has the potential to become a powerful tool for microfluidic DNA detection.
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Affiliation(s)
- Briony C Strachan
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.
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25
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Soni G, Yadav KS. Applications of nanoparticles in treatment and diagnosis of leukemia. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 47:156-64. [DOI: 10.1016/j.msec.2014.10.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 08/14/2014] [Accepted: 10/21/2014] [Indexed: 01/02/2023]
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26
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Elshafey R, Siaj M, Zourob M. DNA aptamers selection and characterization for development of label-free impedimetric aptasensor for neurotoxin anatoxin-a. Biosens Bioelectron 2015; 68:295-302. [PMID: 25594161 DOI: 10.1016/j.bios.2015.01.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/29/2014] [Accepted: 01/01/2015] [Indexed: 01/28/2023]
Abstract
High affinity DNA aptamers against anatoxin-a (ATX), the smallest potent neurotoxin (Mol. Wt, 165.23 Da) were selected and identified in vitro using the systematic evolution of ligands by exponential enrichment (SELEX) approach. Aptamers with dissociation constants (Kd) of nanomolar range were isolated. The aptamer sequence of highest affinity was used to design a label-free impedance based aptasensor to assay ATX, for which there are no reported biosensors so far. The aptamer self assembled monolayer is formed on a gold electrode using the disulfide modified aptamer. The assembly process of the aptasensor was characterized using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Upon ATX binding to the immobilized aptamer, a significant decrease in the electron-transfer resistance was observed as a result of the aptamer conformation change, which is used as the sensor signal. The aptasensor showed a limit of detection of 0.5 nM and a wide linear range for ATX concentrations between 1 nM and 100 nM. The Kd of anti-ATX aptamer was calculated by electrochemical methods as well as the fluorescence. Interestingly, the Kd that was calculated from the aptasensor signal showed a lower value implying that the anchoring of the aptamer on the Au surface enhanced its affinity to ATX. The ATX aptasensor showed high stability as well as high specificity against common cynaobacterial toxins. Further development of biosensors that use anatoxin-a binding aptamers as a new recognition receptors could provide potential alternatives to the traditional assays for fast and simple monitoring of anatoxin-a.
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Affiliation(s)
- Reda Elshafey
- Institut National de la Recherche Scientifique, Centre - Énergie, Matériaux et Télécommunications, 1650, Boul. Lionel Boulet, Varennes, Québec, Canada J3X 1S2
| | - Mohamed Siaj
- Département de Chimie et Biochimie, Université du Québec à Montréal, Montréal, Québec, Canada H3C 3P8
| | - Mohammed Zourob
- Centre of Biomedical Engineering, School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK; Department of Chemistry, Alfaisal University, Riyadh 11533, Kingdom of Saudi Arabia.
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27
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Attomolar detection of BRCA1 gene based on gold nanoparticle assisted signal amplification. Biosens Bioelectron 2014; 65:333-40. [PMID: 25461178 DOI: 10.1016/j.bios.2014.10.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/16/2014] [Accepted: 10/17/2014] [Indexed: 02/03/2023]
Abstract
In this work, we report a simple strategy for signal amplification using appropriately functionalized gold nanoparticles in an electrochemical genosensor which led to attomolar detection of breast cancer 1 (BRCA1) gene. The sensor was developed by the layer-by-layer assembly of mercaptopropionic acid (MPA), polyethylene glycol (PEG) functionalized gold nanoparticle (AuNPPEG), capture DNA (DNA-c), target BRCA1 DNA (DNA-t) and gold nanoparticle labeled reporter DNA (DNA-r.AuNP) on gold electrode. PEG functionalized gold nanoparticles on the MPA surface provided good electron conducting path nullifying the insulating effect of MPA and also act as a proper immobilization platform for the DNA-c by the large number of carboxyl groups present on the functionalized gold nanoparticles. We demonstrated that the incorporation of MPA functionalized gold nanoparticles (AuNPMPA) as an electrochemical label in this sensor design could significantly enhance the sensitivity in the detection. The DNA hybridization of DNA-r.AuNP with target probe was measured by chronoamperometry, electrochemical impedance spectroscopy (EIS), and scanning tunnelling spectroscopy (STS). Electrochemical quartz crystal microbalance (EQCM) experiments were used to support the detection and also to calculate the number of adsorbed molecules on the surface. Under optimum conditions the present sensor exhibited high sensitivity and a very low detection limit of 50attomolar DNA target (294.8attogram BRCA1gene/ml). It shows excellent selectivity against non complementary sequences and 3 base mismatch complementary targets. It also shows good reproducibility, stability and reusability and the developed sensor surface is suitable for point-of care applications.
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28
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Tung YT, Wu MF, Wang GJ, Hsieh SL. Nanostructured electrochemical biosensor for th0065 detection of the weak binding between the dengue virus and the CLEC5A receptor. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1335-41. [DOI: 10.1016/j.nano.2014.03.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 02/17/2014] [Accepted: 03/10/2014] [Indexed: 01/08/2023]
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29
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Rasheed PA, Sandhyarani N. Femtomolar level detection of BRCA1 gene using a gold nanoparticle labeled sandwich type DNA sensor. Colloids Surf B Biointerfaces 2014; 117:7-13. [PMID: 24607518 DOI: 10.1016/j.colsurfb.2014.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 02/03/2014] [Accepted: 02/06/2014] [Indexed: 11/16/2022]
Abstract
We demonstrate the amplified detection of BRCAI gene based on the gold nanoparticle labeled DNA sensor. The sensor was based on a "sandwich" detection strategy, which involved an immobilized capture probe DNA (DNA-c), Target DNA (DNA-t) and gold nanoparticle conjugated reporter probe DNA (DNA-r.AuNP). The sensor surface was characterized by scanning electron microscopy (SEM) and scanning tunneling microscopy (STM). Detection capability of the sensor was studied with I-V measurements using either scanning tunneling microscopy (STM) or Keithley 2400 Source Meter SMU Instrument. The DNA sensor could detect up to 1 fM DNA target (5.896 fg of BRCA 1 gene/ml) and exhibited excellent selectivity against noncomplementary sequences and three base mismatch complementary targets. Good reproducibility, high sensitivity, good stability and reusability of the developed sensor surface showed its application in early cancer diagnosis.
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Affiliation(s)
- P Abdul Rasheed
- Nanoscience Research Laboratory, School of Nano Science and Technology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - N Sandhyarani
- Nanoscience Research Laboratory, School of Nano Science and Technology, National Institute of Technology Calicut, Calicut, Kerala, India.
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31
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Chang Z, Zang Y, Chen C, He P, Fang Y. Determination of DNA and Thrombin by an Electrochemical Sensor Employing Aggregation of Crosslinked Gold Nanoparticles and Aptamer Segments. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.832271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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32
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Elshafey R, Tavares AC, Siaj M, Zourob M. Electrochemical impedance immunosensor based on gold nanoparticles–protein G for the detection of cancer marker epidermal growth factor receptor in human plasma and brain tissue. Biosens Bioelectron 2013; 50:143-9. [DOI: 10.1016/j.bios.2013.05.063] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/28/2013] [Accepted: 05/29/2013] [Indexed: 02/08/2023]
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33
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Radhakrishnan S, Sumathi C, Umar A, Jae Kim S, Wilson J, Dharuman V. Polypyrrole–poly(3,4-ethylenedioxythiophene)–Ag (PPy–PEDOT–Ag) nanocomposite films for label-free electrochemical DNA sensing. Biosens Bioelectron 2013; 47:133-40. [DOI: 10.1016/j.bios.2013.02.049] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 02/05/2013] [Accepted: 02/25/2013] [Indexed: 12/26/2022]
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34
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Chin YT, Liao EC, Wu CC, Wang GJ, Tsai JJ. Label-free detection of single-nucleotide polymorphisms associated with myeloid differentiation-2 using a nanostructured biosensor. Biosens Bioelectron 2013; 49:506-11. [PMID: 23816846 DOI: 10.1016/j.bios.2013.05.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 05/11/2013] [Accepted: 05/28/2013] [Indexed: 10/26/2022]
Abstract
House dust mites are the major source of indoor allergens that are responsible for asthma. The major dust mite allergen is the group II allergen, Der p2. Myeloid differentiation-2 (MD-2) acts as an essential component in the CD14-TLR4 (toll-like receptor)/MD-2 receptor complex for Der p2 recognition. Mutations of the MD-2 associated gene on chromosome 8 degrade a human's innate responses. In this study, we report the effective detection of mutations to the MD-2 gene promoter, using a sensitive nanostructured biosensor with a sensing electrode of gold nanoparticles (GNPs) uniformly deposited in a nanohemisphere array. The 70 mer MD-2 expressed gene fragment was used to probe gene mutation. The complementary target, containing 156 mer nucleotide, was prepared using the fresh blood from patients with allergic disease. A total of 37 target samples, including 19 gene mutated samples and 18 normal samples, were prepared by a 20 cycles PCR process, and used for discrimination experiments. Experimental results illustrated that the nanostructured biosensor clearly discriminates between mutated and non-mutated MD-2 allergy genes.
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Affiliation(s)
- Yu-Ting Chin
- Department of Mechanical Engineering, National Chung-Hsing University, Taichung 40227, Taiwan
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35
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Label-free impedimetric immunosensor for ultrasensitive detection of cancer marker Murine double minute 2 in brain tissue. Biosens Bioelectron 2013; 39:220-5. [DOI: 10.1016/j.bios.2012.07.049] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 07/22/2012] [Accepted: 07/23/2012] [Indexed: 02/06/2023]
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36
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Ensafi AA, Allafchian AR, Rezaei B, Mohammadzadeh R. Characterization of carbon nanotubes decorated with NiFe2O4 magnetic nanoparticles as a novel electrochemical sensor: Application for highly selective determination of sotalol using voltammetry. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:202-8. [DOI: 10.1016/j.msec.2012.08.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 07/16/2012] [Accepted: 08/13/2012] [Indexed: 10/28/2022]
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37
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Wu NY, Gao W, He XL, Chang Z, Xu MT. Direct electrochemical sensor for label-free DNA detection based on zero current potentiometry. Biosens Bioelectron 2013; 39:210-4. [DOI: 10.1016/j.bios.2012.07.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 07/16/2012] [Accepted: 07/21/2012] [Indexed: 11/29/2022]
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38
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A microfluidic-based electrochemical biochip for label-free diffusion-restricted DNA hybridization analysis. Biosens Bioelectron 2012; 38:114-20. [DOI: 10.1016/j.bios.2012.05.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 04/20/2012] [Accepted: 05/08/2012] [Indexed: 11/22/2022]
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39
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Ensafi AA, Allafchian AR, Saraji M, Farajmand B. In-situ differential pulse anodic stripping voltammetry combined with hollow fiber-based liquid-three phase micro extraction for determination of mercury using Au-nanoparticles sol–gel modified Pt-wire. Talanta 2012; 99:335-41. [DOI: 10.1016/j.talanta.2012.05.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 05/26/2012] [Accepted: 05/29/2012] [Indexed: 11/27/2022]
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40
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Fabrication of DNA electrochemical biosensor based on gold nanoparticles, locked nucleic acid modified hairpin DNA and enzymatic signal amplification. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.143] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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