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Bruce N, Farrell F, Xie E, Scullion MG, Haughey AM, Gu E, Dawson MD, Laurand N. MicroLED biosensor with colloidal quantum dots and smartphone detection. Biomed Opt Express 2023; 14:1107-1118. [PMID: 36950244 PMCID: PMC10026578 DOI: 10.1364/boe.478276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
A fluorescence sensor with the capability for spatially multiplexed measurements utilizing smartphone detection is presented. Bioconjugated quantum dots are used as the fluorescent tag and are excited using a blue-emitting microLED (µLED). The 1-dimensional GaN µLED array is butt-coupled to one edge of the glass slide to take advantage of total internal reflection fluorescence (TIRF) principles. The bioassays on the top surface of the glass waveguide are excited and the resultant fluorescence is detected with the smartphone. The red, green, and blue channels of the digital image are utilized to spectrally separate the excitation light from the fluorescence for analysis. Using a biotin-functionalized glass slide as proof of principle, we have shown that streptavidin conjugated quantum dots can be detected down to a concentration of 8 nM.
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Affiliation(s)
- Natalie Bruce
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
- Fraunhofer Centre for Applied Photonics, 99 George Street, Glasgow, UK
| | - Francesca Farrell
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
| | - Enyuan Xie
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
| | - Mark G. Scullion
- Fraunhofer Centre for Applied Photonics, 99 George Street, Glasgow, UK
| | | | - Erdan Gu
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
| | - Martin D. Dawson
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
- Fraunhofer Centre for Applied Photonics, 99 George Street, Glasgow, UK
| | - Nicolas Laurand
- Institute of Photonics, Department of Physics, SUPA, University of Strathclyde, Glasgow, UK
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Zhou C, Pan S, Liu P, Feng N, Lu P, Wang Z, Huang C, Wu L, Chen Y. Polystyrene microsphere-mediated optical sensing strategy for ultrasensitive determination of aflatoxin M 1 in milk. Talanta 2023; 258:124357. [PMID: 36870152 DOI: 10.1016/j.talanta.2023.124357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/05/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023]
Abstract
Aflatoxin M1 (AFM1) contamination poses a serious threat to human health globally. Hence, it is necessary to develop reliable and ultrasensitive methods for the determination of AFM1 residue in food products at low levels. In this study, a novel polystyrene microsphere-mediated optical sensing (PSM-OS) strategy was constructed to solve the problems of low sensitivity and susceptibility to interference from the matrix in AFM1 determination. Polystyrene (PS) microspheres have the advantages of low cost, high stability, and controllable particle size. They can be useful optical signal probes for qualitative and quantitative analyses attributed to the fact that they have strong ultraviolet-visible (UV-vis) characteristic absorption peaks. Briefly, magnetic nanoparticles were modified with the complex of bovine serum protein and AFM1 (MNP150-BSA-AFM1), and biotinylated antibodies of AFM1 (AFM1-Ab-Bio). Meanwhile, PS microspheres were also functionalized with streptavidin (SA-PS950). In the presence of AFM1, a competitive immune reaction was triggered leading to the changes in AFM1-Ab-Bio concentrations on the surface of MNP150-BSA-AFM1. The complex of MNP150-BSA-AFM1-Ab-Bio binds with SA-PS950 to form the immune complexes due to the special binding of biotin and streptavidin. The remaining SA-PS950 in the supernatant was determined by UV-Vis spectrophotometer after magnetic separation, which positively correlated with the concentration of AFM1. This strategy allows for ultrasensitive determination of AFM1 with limits of detection as low as 3.2 pg/mL. It was also successfully validated for AFM1 determination in milk samples, and a high consistency was found with the chemiluminescence immunoassay. Overall, the proposed PSM-OS strategy can be used for the rapid, ultrasensitive, and convenient determination of AFM1, as well as other biochemical analytes.
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Affiliation(s)
- Cuiyun Zhou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Shixing Pan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Puyue Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Niu Feng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Peng Lu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Zhipan Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Chenxi Huang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Long Wu
- School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University. Haikou, 570228, China
| | - Yiping Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, Guangdong, China; Shenzhen Institute of Food Nutrition and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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Hoang Minh N, Yoon JS, Kang DH, Yoo YE, Kim K. Assembling Vertical Nanogap Arrays with Nanoentities for Highly Sensitive Electrical Biosensing. Langmuir 2023; 39:2274-2280. [PMID: 36717271 DOI: 10.1021/acs.langmuir.2c02879] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Nanogap biosensors have emerged as promising platforms for detecting and measuring biochemical substances at low concentrations. Although the nanogap biosensors provide high sensitivity, low limit of detection (LOD), and enhanced signal strength, it requires arduous fabrication processes and costly equipment to obtain micro/nanoelectrodes with extremely narrow gaps in a controlled manner. In this work, we report the novel design and fabrication processes of vertical nanogap structures that can electrically detect and quantify low-concentration biochemical substances. Approximately 40 nm gaps are facilely created by magnetically assembling antibody-coated nanowires onto a nanodisk patterned between a pair of microelectrodes. Analyte molecules tagged with conductive nanoparticles are captured and bound to nanowires and bridge over the nanogaps, which consequently causes an abrupt change in the electrical conductivity between the microelectrodes. Using biotin and streptavidin as model antibodies and analytes, we demonstrated that our nanogap biosensors can effectively measure the protein analytes with the LOD of ∼18 pM. The outcome of this research could inspire the design and fabrication of nanogap devices and nanobiosensors, and it would have a broad impact on the development of microfluidics, biochips, and lab-on-a-chip architectures.
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Affiliation(s)
- Nguyen Hoang Minh
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
- Department of Nanomechatronics, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Jae Sung Yoon
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
- Department of Nanomechatronics, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Do Hyun Kang
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
| | - Yeong-Eun Yoo
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
- Department of Nanomechatronics, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Kwanoh Kim
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
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Lin WT, How SC, Lin WZ, Chen FH, Liao WC, Ma IC, Wang SSS, Hou SY. Using flow cytometry to develop a competitive assay for the detection of biotin. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Wang A, Li Y, You X, Zhang S, Zhou J, Liu H, Ding P, Chen Y, Qi Y, Liu Y, Liang C, Zhu X, Zhang Y, Liu E, Zhang G. Electrochemical immunosensor nanoarchitectonics with the Ag-rGO nanocomposites for the detection of receptor-binding domain of SARS-CoV-2 spike protein. J Solid State Electrochem 2023; 27:489-499. [PMID: 36466035 PMCID: PMC9707143 DOI: 10.1007/s10008-022-05330-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/30/2022]
Abstract
As the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses a grave threat to human life and health, it is essential to develop an efficient and sensitive detection method to identify infected individuals. This study described an electrode platform immunosensor to detect SARS-CoV-2-specific spike receptor-binding domain (RBD) protein based on a bare gold electrode modified with Ag-rGO nanocomposites and the biotin-streptavidin interaction system. The Ag-rGO nanocomposites was obtained by chemical synthesis and characterized by electrochemistry and scanning electron microscope (SEM). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to record the electrochemical signals in the electrode modification. The differential pulse voltammetry (DPV) results showed that the limit of detection (LOD) of the immunosensor was 7.2 fg mL-1 and the linear dynamic detection range was 0.015 ~ 158.5 pg mL-1. Furthermore, this sensitive immunosensor accurately detected RBD in artificial saliva with favorable stability, specificity, and reproducibility, indicating that it has the potential to be used as a practical method for the detection of SARS-CoV-2.
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Affiliation(s)
- Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Yuya Li
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Xiaojuan You
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Shoutao Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Hongliang Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Peiyang Ding
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Yanhua Qi
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Yankai Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Ying Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Enping Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
| | - Gaiping Zhang
- School of Advanced Agricultural Sciences, Peking University, Beijing, 100871 China
- School of Life Sciences, Zhengzhou University, Zhengzhou, 450001 Henan China
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 Henan China
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Ling M, Luo N, Cui L, Cao Y, Ning X, Sun J, Xu X, He S. On-bead DNA synthesis triggered by allosteric probe for detection of carcinoembryonic antigen. Mikrochim Acta 2022; 189:305. [PMID: 35915288 PMCID: PMC9342938 DOI: 10.1007/s00604-022-05404-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/03/2022] [Indexed: 12/02/2022]
Abstract
Sensitive quantification of protein biomarkers is highly desired for clinical diagnosis and treatment. Yet, unlike DNA/RNA which can be greatly amplified by PCR/RT-PCR, the amplification and detection of trace amount of proteins remain a great challenge. Here, we combined allosteric probe (AP) with magnetic bead (MB) for assembling an on-bead DNA synthesis system (named as APMB) to amplify protein signals. The AP is designed and conjugated onto the MB, enabling the protein biomarker to be separated and enriched. Once recognizing the biomarker, the AP alters its conformation to initiate DNA synthesis on beads for primary signal amplification. During the DNA synthesis, biotin-dATPs are incorporated into the newly synthesized DNA strands. Then, the biotin-labeled DNA specifically captures streptavidin (STR)–conjugated horseradish peroxidase (HRP), which is used to catalyze a colorimetric reaction for secondary signal amplification. By using carcinoembryonic antigen (CEA) as a protein model, the APMB can quantify protein biomarkers of as low as 0.01 ng/mL. The response values measured by APMB are linearly related to the protein concentrations in the range 0.05 to 20 ng/mL. Clinical examination demonstrated good practicability of the APMB in quantifying serum protein biomarker. The on-bead DNA synthesis could be exploited to improve protein signal amplification, thus facilitating protein biomarker detection of low abundance for early diagnosis.
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Affiliation(s)
- Min Ling
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Na Luo
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Lanyu Cui
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Yongqiang Cao
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Xueping Ning
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Jian Sun
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Xiaoping Xu
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, People's Republic of China
| | - Shengbin He
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China.
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Xing J, Zhang Y, Xu S, Zeng X. Nanomaterial assisted diagnosis of dopamine to determine attention deficit hyperactivity disorder - ‘An issue with Chinese children’. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pereira-silva P, Meira DI, Costa-barbosa A, Costa D, Rodrigues MS, Borges J, Machado AV, Cavaleiro A, Sampaio P, Vaz F. Immobilization of Streptavidin on a Plasmonic Au-TiO2 Thin Film towards an LSPR Biosensing Platform. Nanomaterials 2022; 12:1526. [PMID: 35564234 PMCID: PMC9102245 DOI: 10.3390/nano12091526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023]
Abstract
Optical biosensors based on localized surface plasmon resonance (LSPR) are the future of label-free detection methods. This work reports the development of plasmonic thin films, containing Au nanoparticles dispersed in a TiO2 matrix, as platforms for LSPR biosensors. Post-deposition treatments were employed, namely annealing at 400 °C, to develop an LSPR band, and Ar plasma, to improve the sensitivity of the Au-TiO2 thin film. Streptavidin and biotin conjugated with horseradish peroxidase (HRP) were chosen as the model receptor–analyte, to prove the efficiency of the immobilization method and to demonstrate the potential of the LSPR-based biosensor. The Au-TiO2 thin films were activated with O2 plasma, to promote the streptavidin immobilization as a biorecognition element, by increasing the surface hydrophilicity (contact angle drop to 7°). The interaction between biotin and the immobilized streptavidin was confirmed by the detection of HRP activity (average absorbance 1.9 ± 0.6), following a protocol based on enzyme-linked immunosorbent assay (ELISA). Furthermore, an LSPR wavelength shift was detectable (0.8 ± 0.1 nm), resulting from a plasmonic thin-film platform with a refractive index sensitivity estimated to be 33 nm/RIU. The detection of the analyte using these two different methods proves that the functionalization protocol was successful and the Au-TiO2 thin films have the potential to be used as an LSPR platform for label-free biosensors.
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Gong W, Sun M, Guo X, Liu Y, Li H, Xie L, Li X. Nanowired dual-electrodes surface to monitor cerebral ischemia by current-volt measurements. 3 Biotech 2021; 11:502. [PMID: 34881165 PMCID: PMC8599545 DOI: 10.1007/s13205-021-03048-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/31/2021] [Indexed: 11/27/2022] Open
Abstract
The level of clotting protein 'factor IX' (FIX) is highly associated with cerebral ischemia, and this research work has developed a sensitive detection of FIX on dielectrode sensor by current-volt measurement. Sensing area was grown with zinc oxide nanowire to attach more probe for FIX interaction. Aptamer was utilized as the detection probe and attached on the sensing electrode surface through amine-aldehyde chemical linkage. In addition, biotin-streptavidin interaction was utilized to attach the higher number aptamers on the electrode surface connected with dual-probe station. FIX detection limit was found as 10 fM in the phosphate buffer saline spiked samples and 1:320 dilution of human serum. The linear ranges were as 10 fM to 100 pM and 1:320 to 1:80, respectively. With a good determination co-efficient [y = 2.6813x - 3.8467; R 2 = 0.9479] this biosensing strategy helps to quantify FIX and monitor the condition of cerebral ischemia.
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Affiliation(s)
- Wei Gong
- Department of Neurology 2, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Meilin Sun
- Department of Neurology 4, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Xiaoling Guo
- Department of Neurology, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Yalin Liu
- Department of Neurology 2, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Hongsheng Li
- Department of Neurology 2, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Lanlan Xie
- Department of Neurology 2, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
| | - Xipeng Li
- Department of Neurology 2, Xingtai People’s Hospital, Xingtai, 054001 Hebei China
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Büyüktiryaki S, Yazıcı B, Ersöz A, Say R, Özkütük EB. Application of HRP-streptavidin bionanoparticles for potentiometric biotin determination. Bioelectrochemistry 2021; 144:107993. [PMID: 34823072 DOI: 10.1016/j.bioelechem.2021.107993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 10/15/2021] [Accepted: 11/02/2021] [Indexed: 01/02/2023]
Abstract
Biotin is widely used in infant formula to prevent biotin deficiency of newborn babies and in beauty products as nutritional supplements for coenzymatic functions and having strong nails, shiny hair, and skin over the last few years. There is a need for the development of a fast, simple and reusable assay method to perform biotin determination at very low concentrations. Biotin determination has achieved with a prepared potentiometric biotin sensor that has a very wide concentration range (10-15M-10-7M) and a lower detection limit (0.3 10-15M) with a very good regression coefficient (0.9925). A quick response (7 min), good accuracy (recovery 100.4-103.7%), reproducible, reusable (10 times), and long-term stability (3 months) have been obtained using the prepared potentiometric sensor. The obtained results have proved that the prepared potentiometric sensor can be used for biotin determination in real samples.
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Gu Y, Liu L, Guo J, Xiao S, Fang F, Yu X, Gopinath SCB, Wu J, Liu X. Biomolecular assembly on interdigitated electrode nanosensor for selective detection of insulin-like growth factor-1. Artif Cells Nanomed Biotechnol 2021; 49:30-37. [PMID: 33467925 DOI: 10.1080/21691401.2020.1865992] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This research is focussed to quantify IGF1 by electroanalytical analysis on InterDigitated electrode surface and characterized by the microscopic observations. For the detection, antibody and aptamer were used to analyze the level of IGF1. The sandwich pattern (aptamer-IGF1-antibody) was designed on the chemically modified IDE surface and reached the limit of detection to 10 fM with 100 folds enhancement in the sensitivity. Different control experiments (absence of IGF1, binding with IGF2 and with non-complementary aptamer) were failed to show the current changes, discriminated the specific detection. A good detection strategy is to complement the currently following imaging systems for AAA.
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Affiliation(s)
- Yan Gu
- Department of Vascular Surgery, Tianjin First Center Hospital, Tianjin, China
| | - Lijie Liu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Jian Guo
- Department of Imaging, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Shun Xiao
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Fang Fang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Xiaoyun Yu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
| | - Jianlie Wu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao City, China
| | - Xunqiang Liu
- Department of Vascular surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming City, Yunnan Province, China
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Chen H, Yang F, Yin G, Song P. Nanomaterial-assisted determination of osteosarcoma by antibody-osteopontin-aptamer sandwich ELISA. Biotechnol Appl Biochem 2021; 69:1646-1652. [PMID: 34420232 DOI: 10.1002/bab.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 07/31/2021] [Indexed: 11/10/2022]
Abstract
Immobilization and detection of small molecules is one of the challenging tasks in any given sensing system as the dissociation equilibrium constant is higher. Generating a right immobilization system with small molecules is mandatory for developing the drug-discovery process and disease identification. Immobilizing smaller probes on the ELISA plate is challenging because of its less adsorption on the polystyrene (PS) substrate. This research work developed an iron nanomaterial-based linker to attach osteopontin-specific aptamer on PS substrate. Iron oxide nanoparticle was attached on PS plate through amine modification and then antibody was attached by COOH reaction. On the osteopontin-modified plate, osteosarcoma biomarker of osteopontin was identified by its specific antibody and aptamer sandwich with the detection limit of 1 nM. Further, biofouling experiments with other molecules, such as lysozyme, and complementary aptamer failed to show the ELISA adsorption signal, indicating the iron oxide nanoparticle-modified PS plate specifically recognizes osteopontin. This research work effectively identifies the lesser abundance of osteopontin and helps to diagnose the osteosarcoma-related problems.
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Affiliation(s)
- Hulin Chen
- Hand and Foot Reconstructive Surgery, Dezhou People's Hospital, Dezhou City, China
| | - Fei Yang
- Cardiac Surgery, Dezhou People's Hospital, Dezhou City, China
| | - Guorui Yin
- Hand and Foot Reconstructive Surgery, Dezhou People's Hospital, Dezhou City, China
| | - Pengfei Song
- Nail Breast Surgery, The First Affiliated Hospital of Xinxiang Medical College, Weihui City, Xinxiang City, Henan Province, China
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13
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Kaneko R, Oda T, Yoshida R, Tateishi C, Tanito K, Nii T, Kishimura A, Kamiya N, Mori T, Katayama Y. α- l-Arabinofuranosidase as an Orthogonal Enzyme for Human Cells. CHEM LETT 2021. [DOI: 10.1246/cl.210231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ryosuke Kaneko
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Tsuyoshi Oda
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ryosuke Yoshida
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chuya Tateishi
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kenta Tanito
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Teruki Nii
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Akihiro Kishimura
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiki Katayama
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Department of Biomedical Engineering, Chung Yuan Christian University, 200 Chung Pei Rd., Chung Li, 32023 ROC, Taiwan
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14
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Sun H, Bao X, Yao X, Gopinath SCB, Min Y. Aptasensing luteinizing hormone to determine gynecological endocrine complications on graphene oxide layered sensor. Biotechnol Appl Biochem 2021; 69:1509-1516. [PMID: 34278604 DOI: 10.1002/bab.2223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/14/2021] [Indexed: 11/09/2022]
Abstract
Luteinizing hormone (LH)/lutropin is an interstitial cell-stimulating hormone playing a predominant role in the reproductive system, and highly correlated with the infertility treatment in both men and women. This research was concentrated to quantify LH level by using interdigitated electrode sensor. To improve the electric current flow, sensing electrode was modified with graphene oxide (GO) and the aptamer probe was attached on GO through biotin-streptavidin linker. Current responses were measured with aptamer-LH interaction at the target concentrations between 7.5 nM and 1 μM and the detection limit of LH was calculated as 60 nM with the determination coefficient (R2 ) value, 0.9229 [y = 1.296x - 2.8435] on a linear range from 30 nM to 1 μM. Further, biofouling effect on sensing electrode surface was analyzed with complementary aptamer sequence, control proteins (albumin and globulin). The above GO-aptamer-modified interdigitated electrode sensor helps to quantify LH level and diagnose gynecological endocrinology-related complications.
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Affiliation(s)
- Huanhuan Sun
- Department of Obstetrics and Gynecology, Harbin Red Cross Central Hospital, Harbin, Heilongjiang, China
| | - Xiucui Bao
- Department of Obstetrics, Yihe Maternity District of Cangzhou People's Hospital, Cangzhou, Hebei, China
| | - Xiaoling Yao
- Department of Obstetrics and Gynecology, Yihe Maternity District of Cangzhou People's Hospital, Cangzhou, Hebei, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, 01000, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau, Perlis, 02600, Malaysia
| | - Yifei Min
- Department of Gynecology, Changzhou No. 2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou, Jiangsu, 213003, China
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15
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Lei J, He MY, Li J, Li H, Wang W, Gopinath SCB, Xu LZ. miRNA identification by nuclease digestion in ELISA for diagnosis of osteosarcoma. Biotechnol Appl Biochem 2021; 69:1365-1372. [PMID: 34081808 DOI: 10.1002/bab.2209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/01/2021] [Indexed: 11/07/2022]
Abstract
Osteosarcoma is a bone cancer formed by the cells of the bone. Children, young adults, and teens are highly affected by osteosarcoma. Early identification of osteosarcoma is mandatory to improve the treatment and increase the lifespan of the patients. MicroRNA-195 (miR-195) was shown to be a suitable biomarker for osteosarcoma, and the present study describes a sensitive method of miR-195 identification by nuclease digestion in ELISA to detect and quantify the level of miR-195. S1 nuclease catalyzed endo- and exonucleolytic digestion of single-stranded (ss) RNA and DNA on ELISA polystyrene substrate, which helped to identify duplexed miR-195. This method selectively and specifically identified miR-195 without any biofouling interactions and reached the limit of detection at 10 fM within the range from 10 fM to 10 nM. Due to complete digestion of ssDNA, single- and triple-mismatched sequences failed to increase the ELISA signal, indicating specific miRNA detection. Furthermore, human serum spiked with miR-195 did not interfere with the detection, confirming selective identification. This method identified miR-195 at a lower level and will help to diagnose earlier stages of osteosarcoma.
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Affiliation(s)
- Jie Lei
- College of Acupuncture and Orthopedics, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Meng-Yin He
- Department of Radiology, Wuhan Hospital Of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Jie Li
- Department of Orthopedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, China
| | - Hao Li
- First Clinical Medical College of Hubei University of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Wei Wang
- First Clinical Medical College of Hubei University of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, 01000, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau, Perlis, 02600, Malaysia
| | - Liang-Zhou Xu
- Department of Radiology, Wuhan Hospital Of Traditional Chinese Medicine, Wuhan, Hubei, China
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16
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Liu Z, Gopinath SCB, Wang Z, Li Y, Anbu P, Zhang W. Zeolite-iron oxide nanocomposite from fly ash formed a 'clubbell' structure: integration of cardiac biocapture macromolecules in serum on microelectrodes. Mikrochim Acta 2021; 188:187. [PMID: 33990848 DOI: 10.1007/s00604-021-04834-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/19/2021] [Indexed: 12/29/2022]
Abstract
A new zeolite-iron oxide nanocomposite (ZEO-IO) was extracted from waste fly ash of a thermal power plant and utilized for capturing aptamers used to quantify the myocardial infarction (MI) biomarker N-terminal prohormone B-type natriuretic peptide (NT-ProBNP); this was used in a probe with an integrated microelectrode sensor. High-resolution microscopy revealed that ZEO-IO displayed a clubbell structure and a particle size range of 100-200 nm. Energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy confirmed the presence of Si, Al, Fe, and O in the synthesized ZEO-IO. The limit of detection for NT-ProBNP was 1-2 pg/mL (0.1-0.2 pM) when the aptamer was sandwiched with antibody and showed the doubled current response even at a low NT-ProBNP abundance. A dose-dependent interaction was identified for this sandwich with a linear plot in the concentration range 1 to 32 pg/mL (0.1-3.2 pM) with a determination coefficient R2 = 0.9884; y = 0.8425x-0.5771. Without sandwich, the detection limit was 2-4 pg/mL (0.2-0.4 pM) and the determination coefficient was R2 = 0.9854; y = 1.0996x-1.4729. Stability and nonfouling assays in the presence of bovine serum albumin, cardiac troponin I, and myoglobin revealed that the aptamer-modified surface is stable and specific for NT-Pro-BNP. Moreover, NT-ProBNP-spiked human serum exhibited selective detection. This new nanocomposite-modified surface helps in detecting NT-Pro-BNP and diagnosing MI at stages of low expression.
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Affiliation(s)
- Zhiqiang Liu
- Department of Cardiovascular Medicine, Ward 4, Xinxiang Central Hospital, The Fourth Clinical College of Xinxiang Medical University, Xinxiang City, 453000, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau, Perlis, Malaysia
| | - Zhifang Wang
- Department of Cardiovascular Medicine, Ward 4, Xinxiang Central Hospital, The Fourth Clinical College of Xinxiang Medical University, Xinxiang City, 453000, China
| | - Yibo Li
- Department of Cardiovascular Medicine, Ward 4, Xinxiang Central Hospital, The Fourth Clinical College of Xinxiang Medical University, Xinxiang City, 453000, China
| | - Periasamy Anbu
- Department of Biological Engineering, College of Engineering, Inha University, Incheon, 402-751, Republic of Korea
| | - Wenlong Zhang
- Department of Cardiac Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250021, Jinan, China.
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17
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Yin G, Fu B, Xu B, Han J, Xue Y, Chen H, Zhang B, Wang G. Identification of osteosarcoma by microRNA-coupled nuclease digestion on interdigitated electrode sensor. Biotechnol Appl Biochem 2021; 69:1094-1100. [PMID: 33987861 DOI: 10.1002/bab.2180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/03/2021] [Indexed: 11/07/2022]
Abstract
Osteosarcoma is a type of tumor originating from the bone cells, most often from long bones. Children and adolescents are mainly affected by osteosarcoma. Identifying the condition with osteosarcoma is mandatory to provide proper treatment to the affected patients. This research work has introduced an identification of an osteosarcoma biomarker "miRNA-21" on the interdigitated electrochemical sensor by nuclease digestion. The target RNA sequence of miRNA-21 was hybridized to the capture DNA and placed on the sensing electrode surface with the aid of the biotin-streptavidin interaction. The unhybridized immobilized single-standard capture DNA was digested by S1-nuclease. The current response of the digestion level was considered as the duplex formation between the target and capture DNA. Using this technique, the detection limit of the target was reached to 1 fM and a similar response of current was noted with the target RNA-spiked human serum, indicating the selective identification of target RNA. Further, single mismatched, triple mismatched, and random miRNA sequences (miRNA-195) failed to interact with the immobilized capture DNA, representing the specific identification of target RNA. This nuclease digestion technique with miRNA-21 identification helps in detecting osteosarcoma and related issues.
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Affiliation(s)
- Guorui Yin
- Hand-foot Reconstructive Surgery, Dezhou People's Hospital of Shandong Province, Decheng District, Dezhou City, China
| | - Bing Fu
- Department of Medical Affairs, People's Hospital of Dezhou City, Decheng District, Dezhou City, China
| | - Bo Xu
- Department of Surgery, Dezhou People's Hospital, Development Zone No. 888, Jinghua Avenue, Dezhou Economic Development Zone, Dezhou City, China
| | - Jinggang Han
- Department of Ultrasound Medicine, Shandong Dezhou People's Hospital, Dezhou City, China
| | - Yufeng Xue
- Department of Internal Medicine, Development Division, Dezhou People's Hospital, Shandong Province No. 888, Jinghua Avenue, Dezhou Economic Development Zone, Dezhou City, China
| | - Hulin Chen
- Hand-foot Reconstructive Surgery, Dezhou People's Hospital of Shandong Province, Decheng District, Dezhou City, China
| | - Binxu Zhang
- Department of Traumatology, Dezhou People's Hospital of Shandong Province, Decheng District, Dezhou City, China
| | - Guixin Wang
- Hand-foot Reconstructive Surgery, Dezhou People's Hospital of Shandong Province, Decheng District, Dezhou City, China
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18
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Yan G, Li Q, Hong X, Gopinath SCB, Anbu P, Li C, Ding M. An iron oxide nanoworm hybrid on an interdigitated microelectrode silica surface to detect abdominal aortic aneurysms. Mikrochim Acta 2021; 188:185. [PMID: 33977395 DOI: 10.1007/s00604-021-04836-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/25/2021] [Indexed: 10/21/2022]
Abstract
An abdominal aortic aneurysm (AAA) is abnormal swelling in the abdominal aorta and a prevalent life-threatening disease. This research introduces a new interdigitated microelectrode (IDME)-sensing surface modified by iron oxide nanoworms (IONWs) for detecting the AAA biomarker insulin-like growth factor-1 (IGF1). A sandwich pattern was formulated with the IGF1 aptamer and IGFBP1 (IGF binding protein-1) on the IONW-constructed IDME hybrid to identify IGF1. The surface morphology of the IONWs revealed a uniform distribution of worm-like structures (80-100 nm) as confirmed by FESEM and FETEM analyses. Further, the presence of the major elements, Fe and O, was confirmed by EDX and XPS studies. The crystal planes that appeared in the IONW reflect cubic magnetite. IONW-modified IDME attained a limit of detection for IGF1 of 1 fM (3σ) with an aptamer-IGF1-IGFBP1 sandwich. This sandwich with IGFBP1 enhanced the current level at all concentrations of IGF1 and displayed linearity in the range 1 fM to 100 pM with a determination coefficient of R2 = 0.9373 [y = 3.38221x - 4.79]. Control experiments with complementary aptamer sequences, IGF2 and IGFBP3 did not show notable signal changes, indicating the specific detection of IGF1. This IONW constructed electrode helps to achieve the detection of low amounts of IGF1 and diagnose AAA at the stage prior to rupture.
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19
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Abstract
Isatoic anhydride (IA) has been shown to be a useful platform for quantifiable bioconjugation. The elaboration of a water-soluble isatoic anhydride-based platform with biotin offers readily quantifiable biotinylation reagents through nondestructive methods of quantification. The incorporation of functionality is directly quantified using the reagent's unique absorbance or fluorescence signature, located outside the biological window. Several biotinylation reagents are prepared with various linker lengths, and the quantification of biotinylated proteins is demonstrated and compared to results from the traditional HABA assay.
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Affiliation(s)
- Adam B Fessler
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
| | - Anthony J Fowler
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
| | - Craig A Ogle
- Department of Chemistry, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, United States
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20
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Jou HJ, Chou LY, Chang WC, Ho HC, Zhang WT, Ling PY, Tsai KH, Chen SH, Chen TH, Lo PH, Chen M, Hsu HT. An Automatic Platform Based on Nanostructured Microfluidic Chip for Isolating and Identification of Circulating Tumor Cells. Micromachines (Basel) 2021; 12:473. [PMID: 33919456 DOI: 10.3390/mi12050473] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/06/2021] [Accepted: 04/18/2021] [Indexed: 02/07/2023]
Abstract
Circulating tumor cell (CTC) test is currently used as a biomarker in cancer treatment. Unfortunately, the poor reproducibility and limited sensitivity with the CTC detection have limited its potential impact on clinical application. A reliable automated CTC detection system is therefore needed. We have designed an automated microfluidic chip-based CTC detection system and hypothesize this novel system can reliably detect CTC from clinical specimens. SKOV3 ovarian cancer cell line was used first to test the reliability of our system. Ten healthy volunteers, 5 patients with benign ovarian tumors, and 8 patients with epithelial ovarian cancer (EOC) were recruited to validate the CTC capturing efficacy in the peripheral blood. The capture rates for spiking test in SKOV3 cells were 48.3% and 89.6% by using anti-EpCAM antibody alone and a combination of anti-EpCAM antibody and anti-N-cadherin antibody, respectively. The system was sensitive to detection of low cell count and showed a linear relationship with the cell counts in our test range. The sensitivity and specificity were 62.5% and 100% when CTC was used as a biomarker for EOC. Our results demonstrated that this automatic CTC platform has a high capture rate and is feasible for detection of CTCs in EOC.
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21
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Li Z, Cui L, Zhao H, Du J, Gopinath SCB, Lakshmipriya T, Xin X. Aluminum Microcomb Electrodes on Silicon Wafer for Detecting Val66Met Polymorphism in Brain-Derived Neurotrophic Factor. Dev Neurosci 2021; 43:53-62. [PMID: 33849012 DOI: 10.1159/000515197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 02/11/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Brain-derived neurotrophic factor (BDNF) dysregulation is widely related with various psychiatric and neurological disorders, including schizophrenia, depression, Rett syndrome, and addiction, and the available evidence suggests that BDNF is also highly correlated with Parkinson's and Alzheimer's diseases. METHODS The BDNF target sequence was detected on a capture probe attached on aluminum microcomb electrodes on the silicon wafer surface. A capture-target-reporter sandwich-type assay was performed to enhance the detection of the BDNF target. RESULTS The limit of detection was noticed to be 100 aM. Input of a reporter sequence at concentrations >10 aM improved the detection of the target sequence by enhancing changes in the generated currents. Control experiments with noncomplementary and single- and triple-mismatches of target and reporter sequences did not elicit changes in current levels, indicating the selective detection of the BDNF gene sequence. CONCLUSION The above detection strategy will be useful for the detection and quantification of BDNF, thereby aiding in the provision of suitable treatments for BDNF-related disorders.
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Affiliation(s)
- Zhi Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.,Key Laboratory of Metabolism and Gastrointestinal Tumor, the First Affiliated Hospital of Shandong First Medical University, Jinan, China.,Key Laboratory of Laparoscopic Technology, the First Affiliated Hospital of Shandong First Medical University, Jinan, China.,Shandong Medicine and Health Key Laboratory of General Surgery, Jinan, China
| | - Liangmin Cui
- Department of Anorectal, The Second People's Hospital of Dongying, Jinan, China
| | - Hongyao Zhao
- Department of Special Inspection, the First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Jinxin Du
- Department of Anorectal, Shandong university of traditional chinese medicine, Jinan, China
| | - Subash C B Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis, Arau, Malaysia.,Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Malaysia
| | | | - Xuezhi Xin
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China.,Key Laboratory of Metabolism and Gastrointestinal Tumor, the First Affiliated Hospital of Shandong First Medical University, Jinan, China.,Key Laboratory of Laparoscopic Technology, the First Affiliated Hospital of Shandong First Medical University, Jinan, China.,Shandong Medicine and Health Key Laboratory of General Surgery, Jinan, China
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22
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Letchumanan I, Arshad MKM, Gopinath SCB. Nanodiagnostic Attainments and Clinical Perspectives on C-Reactive Protein: Cardiovascular Disease Risks Assessment. Curr Med Chem 2021; 28:986-1002. [PMID: 31971105 DOI: 10.2174/0929867327666200123092648] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/12/2019] [Accepted: 10/18/2019] [Indexed: 01/08/2023]
Abstract
Cardiovascular disease (CVD) has become one of the leading causes of morbidity and mortality in both men and women. According to the World Health Organization (WHO), ischemic heart disease is the major issue due to the narrowing of the coronary artery by plaque formation on the artery wall, which causes an inadequate flow of oxygen and blood to the heart and is called 'coronary artery disease'. The CVD death rate increased by up to 15% in 2016 (~17.6 million) compared to the past decade. This tremendous increment urges the development of a suitable biomarker for rapid and early diagnosis. Currently, C-reactive protein (CRP) is considered an outstanding biomarker for quick and accurate outcomes in clinical analyses. Various techniques have also been used to diagnose CVD, including surface plasmon resonance (SPR), colorimetric assay, enzyme-linked immunosorbent assay (ELISA), fluoro-immunoassays, chemiluminescent assays, and electrical measurements. This review discusses such diagnostic strategies and how current, cutting-edge technologies have enabled the development of high-performance detection methodologies. Concluding remarks have been made concerning the clinical significance and the use of nanomaterial in medical diagnostics towards nanotheranostics.
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Affiliation(s)
- Iswary Letchumanan
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - M K Md Arshad
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
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23
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Miar S, Ong JL, Bizios R, Guda T. Electrically Stimulated Tunable Drug Delivery From Polypyrrole-Coated Polyvinylidene Fluoride. Front Chem 2021; 9:599631. [PMID: 33614599 PMCID: PMC7892451 DOI: 10.3389/fchem.2021.599631] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/04/2021] [Indexed: 11/13/2022] Open
Abstract
Electrical stimulus-responsive drug delivery from conducting polymers such as polypyrrole (PPy) has been limited by lack of versatile polymerization techniques and limitations in drug-loading strategies. In the present study, we report an in-situ chemical polymerization technique for incorporation of biotin, as the doping agent, to establish electrosensitive drug release from PPy-coated substrates. Aligned electrospun polyvinylidene fluoride (PVDF) fibers were used as a substrate for the PPy-coating and basic fibroblast growth factor and nerve growth factor were the model growth factors demonstrated for potential applications in musculoskeletal tissue regeneration. It was observed that 18-h of continuous polymerization produced an optimal coating of PPy on the surface of the PVDF electrospun fibers with significantly increased hydrophilicity and no substantial changes observed in fiber orientation or individual fiber thickness. This PPy-PVDF system was used as the platform for loading the aforementioned growth factors, using streptavidin as the drug-complex carrier. The release profile of incorporated biotinylated growth factors exhibited electrosensitive release behavior while the PPy-PVDF complex proved stable for a period of 14 days and suitable as a stimulus responsive drug delivery depot. Critically, the growth factors retained bioactivity after release. In conclusion, the present study established a systematic methodology to prepare PPy coated systems with electrosensitive drug release capabilities which can potentially be used to encourage targeted tissue regeneration and other biomedical applications.
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Affiliation(s)
| | | | | | - Teja Guda
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX, United States
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24
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Zhao J, Chang W, Liu L, Xing X, Zhang C, Meng H, Gopinath SCB, Lakshmipriya T, Chen Y, Liu Y. Graphene oxide-gold nanoparticle-aptamer complexed probe for detecting amyloid beta oligomer by ELISA-based immunoassay. J Immunol Methods 2020; 489:112942. [PMID: 33333060 DOI: 10.1016/j.jim.2020.112942] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/11/2020] [Accepted: 12/08/2020] [Indexed: 11/17/2022]
Abstract
Highly sensitive and easy detection method for Alzheimer's disease (AD) with a suitable biomarker is mandatory for preventing the factors resulting from AD. This research reports a modified ELISA with graphene for the detection of AD biomarker amyloid beta (Aβ) oligomer. Gold nanoparticle (AuNP) conjugated aptamer was used as the capture probe and attached on ELISA-graphene oxide surface through the amine linker. Antibody was used as the detection molecule to reach the maximum detection of Aβ oligomer. Suitable level of APTMS (2%), size of AuNP (30 nm) and aptamer concentration (2 μM) were optimized. This sandwich pattern of aptamer-Aβ oligomer-antibody helps to reach the detection at 50 pM on the optimized ELISA surface and the control experiments in the absence of Aβ oligomer or anti-Aβ oligomer antibody did not show the significant optical detection at 492 nm, indicting the specific detection. Further, Aβ oligomer spiked artificial cerebrospinal fluid did not interfere the detection of Aβ oligomer, confirming the selective detection. This new and modified ELISA surface helps to reach the lower detection of Aβ oligomer and diagnose AD.
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Affiliation(s)
- Jing Zhao
- Department of First Neurology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China.
| | - Wenlong Chang
- Endocrine laboratory, Baoding No.1 Central hospital, Baoding, Hebei 071000, China
| | - Lu Liu
- Department of Clinical Psychology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China
| | - Xiaoming Xing
- Department of First Neurology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China
| | - Chao Zhang
- Department of First Neurology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China
| | - Huihong Meng
- Department of First Neurology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China
| | - Subash C B Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia; Institute of Nano Electronic Engineering, 01000 Kangar, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, 01000 Kangar, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Yonggang Liu
- Department of First Neurology, Baoding No.1 Central hospital, Baoding, Hebei 071000, China.
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25
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Yang Q, Gao Y, Xu L, Hong W, She Y, Yang G. Enzyme-driven micro/nanomotors: Recent advances and biomedical applications. Int J Biol Macromol 2020; 167:457-469. [PMID: 33278445 DOI: 10.1016/j.ijbiomac.2020.11.215] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/17/2020] [Accepted: 11/30/2020] [Indexed: 10/22/2022]
Abstract
Micro/nanomotors (MNMs), both self-propelled actuators and external fields-promoted machines, have joined forces in the past decade to accomplish versatile tasks such as precise detection and targeted cargo delivery with adequate propulsion and desirable locomotion. Amongst, enzyme-driven MNMs have been able to differentiate themselves from others owing to their distinct characteristics, such as absence of chemical fuel, enhanced cellular uptake and the possibility to be easily conjugated with many therapeutics, including both small molecules and biologics, displaying superior efficacy, enhanced specificity and diminished side effects. In the present review, we aim to highlight and summarize recent advances in enzyme-driven MNMs, particularly to provide an in-depth discussion focusing on the enzyme linking approaches onto those MNMs and motion control strategies of such MNMs with advantages and limitations thereof. Conclusions and future perspectives are also provided in brief.
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Affiliation(s)
- Qingliang Yang
- Research Institute of Pharmaceutical Particle Technology, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ying Gao
- Research Institute of Pharmaceutical Particle Technology, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Lei Xu
- Research Institute of Pharmaceutical Particle Technology, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weiyong Hong
- Research Institute of Pharmaceutical Particle Technology, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; Taizhou Municipal Hospital of Zhejiang Province, Taizhou 318000, China
| | - Yuanbin She
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Gensheng Yang
- Research Institute of Pharmaceutical Particle Technology, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
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26
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Chen N, Yang H, Li Q, Song L, Gopinath SCB, Wu D. An interdigitated aptasensor to detect interleukin-6 for diagnosing rheumatoid arthritis in serum. Biotechnol Appl Biochem 2020; 68:1479-1485. [PMID: 33244818 DOI: 10.1002/bab.2068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/30/2020] [Indexed: 01/18/2023]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disorder causing chronic inflammation in the small joints of the articular bone and destruction of articular cartilage. RA causes stiffness, pain, joint destruction, substantial comorbidity, and functional disability. Early-stage diagnosis of RA can help in the treatment of the disease and expand the patient life span. Interleukins are a group of inflammatory cytokines; in particular, an abundance of interleukin-6 (IL-6) was found in the synovial fluid and serum. In RA patients, the levels of IL-6 have been found to be correlated with the disease, and this work focused on detecting IL-6 by its aptamer with the help of a biotin-streptavidin strategy on an interdigitated electrode. A sensitivity of 1 fM (0.021 pg/mL) and a limit of detection of 10 fM (0.21 pg/mL) were found by a linear regression [y = 0.6413x - 0.6249; R² = 0.952] of the linear range from 1 fM to 100 pM. This method enhanced the immobilization of higher aptamer molecules for recognizing RA in serum-containing samples and is applicable to other diseases.
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Affiliation(s)
- Nan Chen
- Orthopedics Department, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Hao Yang
- Orthopedics Department, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Qing Li
- Orthopedics Department, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Lijun Song
- Geriatric Department, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Subash C B Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia.,Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, 01000, Malaysia
| | - Di Wu
- Orthopedics Department, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, People's Republic of China
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27
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Zhang J, Lakshmipriya T, Gopinath SCB. Electroanalysis on an Interdigitated Electrode for High-Affinity Cardiac Troponin I Biomarker Detection by Aptamer-Gold Conjugates. ACS Omega 2020; 5:25899-25905. [PMID: 33073115 PMCID: PMC7558037 DOI: 10.1021/acsomega.0c03260] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/18/2020] [Indexed: 05/05/2023]
Abstract
The primary reasons for myocardial infarction (MI) are pericarditis, arrhythmia, and heart failure, causing predominant deaths worldwide. Patients need a potential diagnostic system and treatment before cardiomyocyte damage. Cardiac biomarkers are released from myocytes immediately after a heart attack. Troponin is an efficient biomarker released from dead cells within a few hours. Aptamers are artificial antibodies used effectively in the biosensor field for biomarker detection. Along with aptamers, the application of nanomaterials is also expected to enhance the detection limits of biosensors. In this investigation, selected aptamers against cardiac troponin I (cTnI) were conjugated with gold nanoparticles (GNPs) to diagnose MI and compared with an aptamer-only control group on an interdigitated electrode surface. Based on electroanalysis, cTnI was detected at concentrations as low as 1 fM, and the detection limit improved to 100 aM when the aptamer was conjugated with GNP. In addition, aptamer-GNP conjugates increased the current level at the tested concentrations of cTnI. Control experiments with noncomplementary aptamers and relevant proteins did not result in notable changes in the current, demonstrating the selective detection of cTnI.
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Affiliation(s)
- Jintao Zhang
- Department
of Children’s Heart Center, Fuwai Central China Cardiovascular
Hospital, Henan Provincial People’s
Hospital, Zhengzhou City, Henan Province 450000, China
| | - Thangavel Lakshmipriya
- Institute
of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis 01000, Malaysia
| | - Subash C. B. Gopinath
- Institute
of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis 01000, Malaysia
- Faculty
of Chemical Engineering Technology, Universiti
Malaysia Perlis, Arau, Perlis 02600, Malaysia
- Correspondence
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28
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Letchumanan I, Gopinath SCB, Md Arshad MK, Mohamed Saheed MS, Perumal V, Voon CH, Hashim U. Gold-Nanohybrid Biosensors for Analyzing Blood Circulating Clinical Biomacromolecules: Current Trend toward Future Remote Digital Monitoring. Crit Rev Anal Chem 2020; 52:577-592. [PMID: 32897761 DOI: 10.1080/10408347.2020.1812373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Mortality level is worsening the situation worldwide thru blood diseases and greatly jeopardizes the human health with poor diagnostics. Due to the lack of successful generation of early diagnosis, the survival rate is currently lower. To overcome the present hurdle, new diagnostic methods have been choreographed for blood disease biomarkers analyses with the conjunction of ultra-small ideal gold nanohybrids. Gold-hybrids hold varieties of unique features, such as high biocompatibility, increased surface-to-volume ratio, less-toxicity, ease in electron transfer and have a greater localized surface plasmon resonance. Gold-nanocomposites can be physically hybrid on the sensor surface and functionalize with the biomolecules using appropriate chemical conjugations. Revolutionizing biosensor platform can be prominently linked for the nanocomposite applications in the current research on medical diagnosis. This review encloses the new developments in diagnosing blood biomarkers by utilizing the gold-nanohybrids. Further, the current state-of-the-art and the future envision with digital monitoring for facile telediagnosis were narrated.
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Affiliation(s)
- Iswary Letchumanan
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia.,School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau 02600, Malaysia
| | - M K Md Arshad
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia.,School of Microelectronic Engineering, Arau 02600, Universiti Malaysia Perlis, Perlis, Malaysia
| | - Mohamed Shuaib Mohamed Saheed
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.,Centre of Innovative Nanostructures & Nanodevices (COINN), Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Veeradasan Perumal
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia.,Centre of Innovative Nanostructures & Nanodevices (COINN), Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Chun Hong Voon
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Uda Hashim
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
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29
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García-Maceira T, García-Maceira FI, González-Reyes JA, Paz-Rojas E. Highly enhanced ELISA sensitivity using acetylated chitosan surfaces. BMC Biotechnol 2020; 20:41. [PMID: 32814567 PMCID: PMC7437170 DOI: 10.1186/s12896-020-00640-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 08/10/2020] [Indexed: 11/10/2022] Open
Abstract
Background The enzyme-linked immunosorbent assay (ELISA), is the most widely used and reliable clinical routine method for the detection of important protein markers in healthcare. Improving ELISAs is crucial for detecting biomolecules relates to health disorders and facilitating diagnosis at the early diseases stages. Several methods have been developed to improve the ELISA sensitivity through immobilization of antibodies on the microtiter plates. We have developed a highly sensitive ELISA strategy based on the preparation of acetylated chitosan surfaces in order to improve the antibodies orientation. Results Chitin surfaces were obtained by mixing small quantities of chitosan and acetic anhydride in each well of a microtiter plate. Anti-c-myc 9E10 low affinity antibody fused to ChBD was cloned and expressed in CHO cells obtaining the anti-c-myc-ChBD antibody. We found that anti c-myc-ChBD binds specifically to the chitin surfaces in comparison with anti-c-myc 9E10, which did not. Chitin surface was used to develop a sandwich ELISA to detect the chimeric human protein c-myc-GST-IL8 cloned and expressed in Escherichia coli. The ELISA assays developed on chitin surfaces were 6-fold more sensitive than those performed on standard surface with significant differences (p<0,0001). Conclusions As shown here, acetylated chitosan surfaces improve the antibody orientation on the substrate and constitute a suitable method to replace the standard surfaces given the stability over time and the low cost of its preparation.
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Affiliation(s)
- Tania García-Maceira
- Canvax Biotech; Parque Científico y Tecnológico Rabanales 21, c/Astrónoma Cecilia Payne s/n, Edificio Canvax, 14014, Córdoba, Spain.
| | - Fé I García-Maceira
- Canvax Biotech; Parque Científico y Tecnológico Rabanales 21, c/Astrónoma Cecilia Payne s/n, Edificio Canvax, 14014, Córdoba, Spain
| | - José A González-Reyes
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario, ceiA3, 14014, Córdoba, Spain
| | - Elier Paz-Rojas
- Canvax Biotech; Parque Científico y Tecnológico Rabanales 21, c/Astrónoma Cecilia Payne s/n, Edificio Canvax, 14014, Córdoba, Spain
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30
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Moyano A, Serrano-Pertierra E, Salvador M, Martínez-García JC, Piñeiro Y, Yañez-Vilar S, Gónzalez-Gómez M, Rivas J, Rivas M, Blanco-López MC. Carbon-Coated Superparamagnetic Nanoflowers for Biosensors Based on Lateral Flow Immunoassays. Biosensors (Basel) 2020; 10:E80. [PMID: 32707868 PMCID: PMC7460469 DOI: 10.3390/bios10080080] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/09/2020] [Accepted: 07/18/2020] [Indexed: 12/11/2022]
Abstract
Superparamagnetic iron oxide nanoflowers coated by a black carbon layer (Fe3O4@C) were studied as labels in lateral flow immunoassays. They were synthesized by a one-pot solvothermal route, and they were characterized (size, morphology, chemical composition, and magnetic properties). They consist of several superparamagnetic cores embedded in a carbon coating holding carboxylic groups adequate for bioconjugation. Their multi-core structure is especially efficient for magnetic separation while keeping suitable magnetic properties and appropriate size for immunoassay reporters. Their functionality was tested with a model system based on the biotin-neutravidin interaction. For this, the nanoparticles were conjugated to neutravidin using the carbodiimide chemistry, and the lateral flow immunoassay was carried out with a biotin test line. Quantification was achieved with both an inductive magnetic sensor and a reflectance reader. In order to further investigate the quantifying capacity of the Fe3O4@C nanoflowers, the magnetic lateral flow immunoassay was tested as a detection system for extracellular vesicles (EVs), a novel source of biomarkers with interest for liquid biopsy. A clear correlation between the extracellular vesicle concentration and the signal proved the potential of the nanoflowers as quantifying labels. The limit of detection in a rapid test for EVs was lower than the values reported before for other magnetic nanoparticle labels in the working range 0-3 × 107 EVs/μL. The method showed a reproducibility (RSD) of 3% (n = 3). The lateral flow immunoassay (LFIA) rapid test developed in this work yielded to satisfactory results for EVs quantification by using a precipitation kit and also directly in plasma samples. Besides, these Fe3O4@C nanoparticles are easy to concentrate by means of a magnet, and this feature makes them promising candidates to further reduce the limit of detection.
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Affiliation(s)
- Amanda Moyano
- Department of Physical and Analytical Chemistry & Institute of Biotechnology of Asturias, University of Oviedo, c/Julián Clavería 8, 33006 Oviedo, Spain; (A.M.); (E.S.-P.)
| | - Esther Serrano-Pertierra
- Department of Physical and Analytical Chemistry & Institute of Biotechnology of Asturias, University of Oviedo, c/Julián Clavería 8, 33006 Oviedo, Spain; (A.M.); (E.S.-P.)
| | - María Salvador
- Department of Physics & IUTA, University of Oviedo, Campus de Viesques, 33204 Gijón, Spain; (M.S.); (J.C.M.-G.); (M.R.)
| | - José Carlos Martínez-García
- Department of Physics & IUTA, University of Oviedo, Campus de Viesques, 33204 Gijón, Spain; (M.S.); (J.C.M.-G.); (M.R.)
| | - Yolanda Piñeiro
- Department of Applied Physics, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain; (Y.P.); (S.Y.-V.); (M.G.-G.); (J.R.)
| | - Susana Yañez-Vilar
- Department of Applied Physics, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain; (Y.P.); (S.Y.-V.); (M.G.-G.); (J.R.)
| | - Manuel Gónzalez-Gómez
- Department of Applied Physics, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain; (Y.P.); (S.Y.-V.); (M.G.-G.); (J.R.)
| | - José Rivas
- Department of Applied Physics, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain; (Y.P.); (S.Y.-V.); (M.G.-G.); (J.R.)
| | - Montserrat Rivas
- Department of Physics & IUTA, University of Oviedo, Campus de Viesques, 33204 Gijón, Spain; (M.S.); (J.C.M.-G.); (M.R.)
| | - M. Carmen Blanco-López
- Department of Physical and Analytical Chemistry & Institute of Biotechnology of Asturias, University of Oviedo, c/Julián Clavería 8, 33006 Oviedo, Spain; (A.M.); (E.S.-P.)
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31
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Siddiqui MF, Khan ZA, Park S. Detection of C-Reactive Protein Using Histag-HRP Functionalized Nanoconjugate with Signal Amplified Immunoassay. Nanomaterials (Basel) 2020; 10:E1240. [PMID: 32604729 DOI: 10.3390/nano10061240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/16/2022]
Abstract
Ultrasensitive detection of biomarkers is highly significant for disease prognosis and public health treatment. Despite wide acceptance in routine laboratory tests, the conventional enzyme-linked immunosorbent assay (ELISA) has been of limited use for early biomarker detection due to insufficient sensitivity and multiple long incubation time. Several nanoprobes have been introduced to circumvent the limitation, however, rapid, simple, and chemical-free nanoprobe synthesis and sensitive detection methods, particularly for ELISA, are still lacking. In this study, we have synthesized a gold nanoprobe, conjugated with multiple 6X-histidine (6X-his) peptide and nickel-horseradish peroxidase (Ni2+-HRP), for enhancing the colorimetric signal in ELISA. The developed nanoprobe has been tested for the detection of immunologically significant C-reactive protein (CRP) in ELISA format. The performance of designed probe is validated by testing standard and serum samples, and the detection limit of 32.0 pg/mL with R2 = 0.98 is confirmed. Furthermore, a comparative analysis of the developed nanoprobe was performed with ELISA developed on conventional guidelines, the proposed immunoassay showed an increase of 12-fold sensitivity for detecting CRP due to the high loading of 6Xhis peptide and binding of multiple Ni2+-HRP on a gold nanoparticle. Additionally, the proposed assay provides a simple, fast, and cost-efficient (not requiring multiple antibodies) detection of CRP with easy nanoprobe synthesis. Moreover, the developed Histag-HRP functionalized nanoconjugate immunoassay is flexible and can be applied to other biomarkers efficiently by using disease specific antibody.
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32
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Wang S, Hossain MZ, Shinozuka K, Shimizu N, Kitada S, Suzuki T, Ichige R, Kuwana A, Kobayashi H. Graphene field-effect transistor biosensor for detection of biotin with ultrahigh sensitivity and specificity. Biosens Bioelectron 2020; 165:112363. [PMID: 32729495 PMCID: PMC7272179 DOI: 10.1016/j.bios.2020.112363] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/28/2020] [Accepted: 06/03/2020] [Indexed: 02/07/2023]
Abstract
Because avidin and biotin molecules exhibit the most specific and strongest non-covalent interaction, avidin-biotin technology is widely used in ELISA (enzyme-linked immunosorbent assay) kits for the detection of different bio-macromolecules linked to different diseases including cancer and influenza. Combining the outstanding electrical conductivity (200,000 cm2V-1s-1) of graphene with the unique avidin and biotin interaction, we demonstrate a novel graphene field-effect transistor (GFET) biosensor for the quantitative detection of bio-macromolecules. The GFET consists of six pairs of interdigital Cr/Au electrodes supported on Si/SiO2 substrate with an avidin immobilized single layer graphene channel as the sensing platform. By monitoring the real time current change upon the addition of biotin solution in bovine serum albumin (BSA) in the silicone pool preformed onto the GFET, the lowest detectable biotin concentration is estimated to be 90 fg/ml (0.37 pM). The specificity of the GFET is confirmed both by controlled and real sample measurements. From the magnitude of current change upon the addition of different concentrations of biotin solutions, the dissociation constant Kd is estimated to be 1.6 × 10-11 M. Since biotin is capable of conjugating with proteins, nucleotides and other bio-macromolecules without altering their properties, the present GFET sensor with its ultra-high sensitivity (0.37 pM) and specificity can be tailored to the rapid point-of-care detection of different types of desired biomolecules at very low concentration level through biotinylation as well as the exogenous biotin in blood serum. Combining the outstanding electrical conductivity of graphene with the unique interaction between avidin and biotin, a novel graphene field-effect transistor (GFET) biosensor for quantitative detection of bio-macromolecules is demonstrated. The present biosensor is capable of detecting the biotin with the sensitivity of 90 fg/ml (~0.37 pM) and high specificity. Since the biotin is capable of conjugating with protein, nucleotide and other bio-macromolecules without affecting their properties, the present GFET sensor can be tailored to various medical applications.
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Affiliation(s)
- Shiyu Wang
- Division of Electronics and Informatics, Graduate School of Science and Engineering, Gunma University 1-5-1 Tenjin-cho, Kiryu, 376-8515, Japan.
| | - Md Zakir Hossain
- Gunma University Initiative for Advanced Research (GIAR), Gunma University, Japan.
| | - Kazuo Shinozuka
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Japan
| | - Natsuhiko Shimizu
- Gunma University Initiative for Advanced Research (GIAR), Gunma University, Japan
| | - Shunya Kitada
- Gunma University Initiative for Advanced Research (GIAR), Gunma University, Japan
| | - Takaaki Suzuki
- Division of Mechanical Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Ryo Ichige
- Division of Mechanical Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Anna Kuwana
- Division of Electronics and Informatics, Graduate School of Science and Engineering, Gunma University 1-5-1 Tenjin-cho, Kiryu, 376-8515, Japan
| | - Haruo Kobayashi
- Division of Electronics and Informatics, Graduate School of Science and Engineering, Gunma University 1-5-1 Tenjin-cho, Kiryu, 376-8515, Japan.
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33
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Lu B, Liu L, Wang J, Chen Y, Li Z, Gopinath SCB, Lakshmipriya T, Huo Z. Detection of microRNA-335-5p on an Interdigitated Electrode Surface for Determination of the Severity of Abdominal Aortic Aneurysms. Nanoscale Res Lett 2020; 15:105. [PMID: 32394009 PMCID: PMC7214562 DOI: 10.1186/s11671-020-03331-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/24/2020] [Indexed: 05/27/2023]
Abstract
Abdominal aortic aneurysm (AAA) refers to the enlargement of the lower artery of the abdominal aorta, and identification of an early detection tool is urgently needed for diagnosis. In the current study, an interdigitated electrode (IDE) sensing surface was used to identify miRNA-335-5p, which reflects the formation of AAAs. The uniformity of the silica material was observed by 3D profilometry, and the chemically modified highly conductive surface improved the detection via the I-V mode. The targeted miRNA-335-5p was detected in a dose-dependent manner and based on linear regression and 3σ analyses, the sensitivity was determined to be 1 fM with a biotinylated probe. The high specificity was shown by discriminating the target sequence from noncomplementary and single- and triple-mismatched sequences. These outputs demonstrated the high-performance detection of miRNA-335-5p with good reproducibility for determination of the severity of AAA.
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Affiliation(s)
- Bei Lu
- Department of Hepato-pancreato-biliary Surgery, The Affiliated Hangzhou First People’s Hospital of Zhejiang University School of Medicine, Zhejiang, 310006 Hangzhou China
| | - Leiting Liu
- Department of General Thoracic and Vascular Surgery, Wuhan No. 1 Hospital, Wuhan, 430022 Hubei China
| | - Jingrui Wang
- Department of Hepato-pancreato-biliary Surgery, The Affiliated Hangzhou First People’s Hospital of Zhejiang University School of Medicine, Zhejiang, 310006 Hangzhou China
| | - Yuan Chen
- Department of Endocrinology, The First People’s Hospital of Zunyi, Zunyi, 563000 Guizhou China
| | - Zhijiang Li
- Department of Gallbladder Pancreas and Vascular Surgery, Jingmen No. 1 People’s Hospital, Jingmen, 448000 Hubei China
| | - Subash C. B. Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| | - Zongwei Huo
- Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117 Shandong China
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34
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Liu X, Yang X, Shao J, Hong Y, Gopinath SCB, Chen Y, Wey MC, Wang Y. Coordination of Nanoconjugation with an Antigen/Antibody for Efficient Detection of Gynecological Tumors. J Anal Methods Chem 2020; 2020:6528572. [PMID: 32309010 PMCID: PMC7149363 DOI: 10.1155/2020/6528572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 01/19/2020] [Accepted: 03/07/2020] [Indexed: 06/11/2023]
Abstract
Cervical, ovarian, and endometrial cancers are common in the female reproductive system. Cervical cancer starts from the cervix, while ovarian cancer develops when abnormal cells grow in the ovary. Endometrial or uterine cancer starts from the lining of the womb in the endometrium. Approximately 12,000 women are affected every year by cervical cancer in the United States. Squamous cell carcinoma antigen (SCC-Ag) is a well-established biomarker in serum for diagnosing gynecological cancers, and its levels were observed to be elevated in cervical, ovarian, and endometrial cancer patients. Moreover, SCC-Ag was used to identify the tumor size and progression stages. Various biosensing systems have been proposed to identify SCC-Ag; herein, enhanced interdigitated electrode sensing is presented with the use of gold nanoparticles (GNPs) to conjugate an antigen/antibody. It was proved that the limit of detection is 62.5 fM in the case of antibody-GNP, which is 2-fold higher than that by SCC-Ag-GNP. Furthermore, the antibody-GNP-modified surface displays greater current increases with concomitant dose-dependent SCC-Ag levels. High analytical performance was shown by the discrimination against α-fetoprotein and CYFRA 21-1 at 1 pM. An enhanced sensing system is established for gynecological tumors, representing an advance from the earlier detection methods.
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Affiliation(s)
- Xinmei Liu
- Department of Gynecology, The Fifth Hospital of Xi'an, Xi'an, Shaanxi 710082, China
| | - Xinyuan Yang
- Department of Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Juan Shao
- Department of Gynecology, The Fifth Hospital of Xi'an, Xi'an, Shaanxi 710082, China
| | - Yufeng Hong
- Department of Gynecology, The Second Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine, Xianyang, Shaanxi 712000, China
| | - Subash C. B. Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Mang Chek Wey
- Clinical Craniofacial Dental Research Group, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yaru Wang
- Department of Gynecology, Xi'an Maternal and Child Health Hospital, Xi'an, Shaanxi 710002, China
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Hu R, Dong Z, Zhang K, Pan G, Li C, Cui H. Preparation, Characterization and Diagnostic Valuation of Two Novel Anti-HPV16 E7 Oncoprotein Monoclonal Antibodies. Viruses 2020; 12:v12030333. [PMID: 32204370 PMCID: PMC7150828 DOI: 10.3390/v12030333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 12/12/2022] Open
Abstract
At present, the clinical detection method of human papillomavirus (HPV) is mainly based on the PCR method. However, this method can only be used to detect HPV DNA and HPV types, and cannot be used to accurately predict cervical cancer. HPV16 E7 is an oncoprotein selectively expressed in cervical cancers. In this study, we prepared an HPV16 E7-histidine (HIS) fusion oncoprotein by using a prokaryotic expression and gained several mouse anti-HPV16 E7-HIS fusion oncoprotein monoclonal antibodies (mAbs) by using hybridoma technology. Two mAbs, 69E2 (IgG2a) and 79A11 (IgM), were identified. Immunocytochemistry, immunofluorescence, immunohistochemistry, and Western blot were used to characterize the specificity of these mAbs. The sequences of the nucleotide bases and predicted amino acids of the 69E2 and 79A11 antibodies showed that they were novel antibodies. Indirect enzyme-linked immunosorbent assay (ELISA) with overlapping peptides, indirect competitive ELISA, and 3D structural modeling showed that mAbs 69E2 and 79A11 specifically bound to the three exposed peptides of the HPV16 E7 (HPV16 E749–66, HPV16 E773–85, and HPV16 E791–97). We used these two antibodies (79A11 as a capture antibody and 69E2 as a detection antibody) to establish a double-antibody sandwich ELISA based on a horseradish peroxidase (HRP)-labeled mAb and tetramethylbenzidine (TMB) detection system for quantitative detection of the HPV16 E7-HIS fusion oncoprotein, however, it was not ideal. Then we established a chemiluminescence immunoassay based on a labeled streptavidin-biotin (LSAB)-ELISA method and luminol detection system—this was sufficient for quantitative detection of the HPV16 E7-HIS fusion oncogenic protein in ng levels and was suitable for the detection of HPV16-positive cervical carcinoma tissues. Collectively, we obtained two novel mouse anti-HPV16 E7 oncoprotein mAbs and established an LSAB-lumino-dual-antibody sandwich ELISA method for the detection of the HPV16 E7-HIS fusion oncogenic protein, which might be a promising method for the diagnosis of HPV16-type cervical cancers in the early stage.
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Affiliation(s)
- Renjian Hu
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Banan, Chongqing 400054, China
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
| | - Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
| | - Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, College of Biotechnology, Southwest University, Beibei, Chongqing 400716, China; (R.H.); (Z.D.); (K.Z.); (G.P.); (C.L.)
- Cancer Center, Medical Research Institute, Southwest University, Beibei, Chongqing 400716, China
- Correspondence: ; Tel.: +86-23-68251713
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Agnolon V, Contato A, Meneghello A, Tagliabue E, Toffoli G, Gion M, Polo F, Fabricio ASC. ELISA assay employing epitope-specific monoclonal antibodies to quantify circulating HER2 with potential application in monitoring cancer patients undergoing therapy with trastuzumab. Sci Rep 2020; 10:3016. [PMID: 32080226 DOI: 10.1038/s41598-020-59630-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 01/02/2020] [Indexed: 11/08/2022] Open
Abstract
Circulating HER2 extracellular domain (HER2 ECD) levels were proposed as a surrogate for HER2 tissue expression to monitor breast cancer patients for early relapse or responses to standard or HER2-targeted therapies, such as the monoclonal antibody (mAb) trastuzumab. Currently, available commercial ELISA assays for HER2 ECD rely on antibodies recognizing undisclosed or unknown epitopes. In this work, two ELISA assays employing MGR2 and MGR3 epitope-specific mAbs for HER2 ECD were developed and validated, showing good assay precision and linearity of the dose-response signal within the dynamic range of 0.19-12.50 ng mL-1 and detection limits of 0.76 and 0.75 ng mL-1 for the MGR2 and MGR3 assays, respectively. The developed assay showed a good agreement with two widely used commercial kits for HER2 ECD quantification in serum samples from breast cancer patients. A complete characterization of mAb-HER2 ECD interaction was performed by means of surface plasmon resonance using trastuzumab as control for both epitope mapping and kinetics analysis. The epitopes recognized by the two mAbs showed no overlap with trastuzumab, which was confirmed by trastuzumab interference analysis in serum samples. The method showed to be a practical approach to determine HER2 ECD with a high degree of sensitivity, reliability and recovery in samples containing mAbs-based therapies.
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Wang Y, Guo Y, Lu J, Sun Y, Yu X, Gopinath SCB, Lakshmipriya T, Wu YS, Wang C. Nanodetection of Head and Neck Cancer on Titanium Oxide Sensing Surface. Nanoscale Res Lett 2020; 15:33. [PMID: 32016709 PMCID: PMC6997316 DOI: 10.1186/s11671-020-3262-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/20/2020] [Indexed: 05/27/2023]
Abstract
Head and neck cancer is a heterogeneous disease, originating in the squamous cells lining the larynx (voice box), mouth, pharynx (throat), nasal cavity and salivary glands. Head and neck cancer diagnosis at the later stage is greatly influencing the survival rate of the patient. It makes a mandatory situation to identify this cancer at the earlier stages of development with a suitable biomarker. Squamous cell carcinoma antigen (SCC-Ag) is a circulating serum tumour biomarker, and the elevated level has been found in the head and neck cancer patients and highly correlated with the tumour volume. The present research was carried out to detect and quantify the level of SCC-Ag on titanium oxide (TiO2)-modified interdigitated electrode sensor (IDE) by SCC-Ag antibody. The detection of SCC-Ag was found at the level of 100 fM, while it was improved to 10 fM when the antibody was conjugated with gold nanostar, representing a 10-fold improvement. Interestingly, this enhancement in sensitivity is 1000-folds higher than other substrates. Moreover, the specificity analysis was carried out using two different control proteins and noticed that the antibody only recognised SCC-Ag, indicating the specific detection on IDE-TiO2 sensing surface.
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Affiliation(s)
- Yu Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081 Heilongjiang China
| | - Yan Guo
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081 Heilongjiang China
| | - Jianguang Lu
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081 Heilongjiang China
| | - Yanan Sun
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081 Heilongjiang China
| | - Xiaoguang Yu
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, 150081 Heilongjiang China
| | - Subash C. B. Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| | - Yuan Seng Wu
- Department of Biochemistry, Faculty of Medicine and Biomedical Sciences, MAHSA University, Bandar Saujana Putra, 42610 Jenjarom, Selangor Malaysia
| | - Chao Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081 Heilongjiang China
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Zhang J, Gopinath SCB. Quantification of cortisol for the medical diagnosis of multiple pregnancy-related diseases. 3 Biotech 2020; 10:35. [PMID: 31988829 DOI: 10.1007/s13205-019-2030-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/20/2019] [Indexed: 01/03/2023] Open
Abstract
Cortisol is a stress hormone released from the adrenal glands and is responsible for both hyperglycemia and hypertension during pregnancy. These factors make it mandatory to detect the levels of cortisol during pregnancy to identify and treat hypoglycemia and hypertension. In this study, cortisol levels were quantified with an aptamer-conjugated gold nanorod using an electrochemical interdigitated electrode sensor. The surface uniformity was analyzed by high-power microscopy and 3D-nanoprofiler imaging. The detection limit was determined to be 0.01 ng/mL, and a linear regression indicated that the sensitivity range was in the range of 0.01-0.1 ng/mL, based on a 3σ calculation. Moreover, the specificity of the aptamer was determined by a binding analysis against norepinephrine and progesterone, and it was clearly found that the aptamer specifically recognizes only cortisol. Further, the presence of cortisol was detected in the serum in a dose-dependent manner. This method is useful to detect and correlate multiple pregnancy-related diseases by quantifying the levels of cortisol.
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Guo S, Li Y, Li R, Zhang P, Wang Y, Gopinath SCB, Gong K, Wan P. High-performance detection of an abdominal aortic aneurysm biomarker by immunosensing. Biotechnol Appl Biochem 2020; 67:383-388. [PMID: 31876964 DOI: 10.1002/bab.1877] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/23/2019] [Indexed: 12/19/2022]
Abstract
Abdominal aortic aneurysm (AAA) is a serious, life-threatening vascular disease that presents as an enlarged area of the aorta, which is the main artery that carries blood away from the heart. AAA may occur at any location in the aorta, but it is mainly found in the abdominal region. A ruptured AAA causes serious health issues, including death. Traditional imaging techniques, such as computed tomography angiogram, magnetic resonance imaging, and ultrasound sonography, have been used to identify AAAs. Circulating biomarkers have recently become attractive for diagnosing AAAs due to their cost-effectiveness compared to imaging. Insulin-like growth factor 1 (IGF-1), a secreted hormone vital for human atherosclerotic plaque stability, has been found to be an efficient biomarker for AAA identification. In this report, immunosensing was performed by using an InterDigitated electrode (IDE) sensor to detect circulating levels of IGF-1. The detection limit of IGF-1 was found to be 100 fM with this sensor. Moreover, related protein controls (IGF-2 and IGFBP3) were not detected with the same antibody, indicating selective IGF-1 detection. Thus, immunosensing by using an IDE sensor may help to effectively diagnose AAAs and represents a basic platform for further development.
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Affiliation(s)
- Shikui Guo
- Department of General Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yuejin Li
- Department of General Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Rougang Li
- Department of General Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Peng Zhang
- Department of General Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yongzhi Wang
- Department of General Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Kangar, Perlis, Malaysia.,School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau, Perlis, Malaysia
| | - Kunmei Gong
- Department of Gastroenterology, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Ping Wan
- The Digestive Medicine Department, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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Ge Y, Lakshmipriya T, Gopinath SCB, Anbu P, Chen Y, Hariri F, Li L. Glucose oxidase complexed gold-graphene nanocomposite on a dielectric surface for glucose detection: a strategy for gestational diabetes mellitus. Int J Nanomedicine 2019; 14:7851-7860. [PMID: 31632005 PMCID: PMC6781737 DOI: 10.2147/ijn.s222238] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 08/26/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Gestational diabetes mellitus is a commonly occurring metabolic disorder during pregnancy, affecting >4% of pregnant women. It is generally defined as the intolerance of glucose with the onset or initial diagnosis during pregnancy. This illness affects the placenta and poses a threat to the baby as it affects the supply of proper oxygen and nutrients. PURPOSE Due to the high percentage of affected pregnant women, it should be mandatory to evaluate glucose levels during pregnancy and there is a need for a continuous monitoring system. METHODS Herein, the investigators modified the interdigitated (di)electrodes (IDE) sensing surface to detect the glucose on covalently immobilized glucose oxidase (GOx) with the graphene. The characterization of graphene and gold nanoparticle (GNP) was performed by high-resolution microscopy. RESULTS Sensitivity was found to be 0.06 mg/mL and to enhance the detection, GOx was complexed with GNP. GNP-GOx was improved the sensitive detection twofold from 0.06 to 0.03 mg/mL, and it also displayed higher levels of current changes at all the concentrations of glucose that were tested. High-performance of the above IDE sensing system was attested by the specificity, reproducibility and higher sensitivity detections. Further, the linear regression analysis indicated the limit of detection to be between 0.02 and 0.03 mg/mL. CONCLUSION This study demonstrated the potential strategy with nanocomposite for diagnosing gestational diabetes mellitus.
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Affiliation(s)
- Yueping Ge
- Department of Gynaecology and Obstetrics, Henan Provincial People’s Hospital, People's Hospital of Zhengzhou University, Zhengzhou City, Henan Province450003, People’s Republic of China
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis01000, Malaysia
| | - Subash CB Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, Perlis01000, Malaysia
- School of Bioprocess Engineering, Universiti Malaysia Perlis, Arau02600, Perlis, Malaysia
| | - Periasamy Anbu
- Department of Biological Engineering, College of Engineering, Inha University, Incheon402-751, Republic of Korea
| | - Yeng Chen
- Department of Oral & Craniofacial Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur50603, Malaysia
| | - Firdaus Hariri
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur50603, Malaysia
| | - Lu Li
- Department of Obstetrics, Jinan Central Hospital Affiliated to Shandong University, Jinan City, Shandong Province250013, People’s Republic of China
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Azandaryani AH, Kashanian S, Jamshidnejad-Tosaramandani T. Recent Insights into Effective Nanomaterials and Biomacromolecules Conjugation in Advanced Drug Targeting. Curr Pharm Biotechnol 2019; 20:526-541. [DOI: 10.2174/1389201020666190417125101] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/18/2019] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Targeted drug delivery, also known as smart drug delivery or active drug delivery, is a subcategory of nanomedicine. Using this strategy, the medication is delivered into the infected organs in the patient’s body or to the targeted sites inside the cells. In order to improve therapeutic efficiency and pharmacokinetic characteristics of the active pharmaceutical agents, conjugation of biomacromolecules such as proteins, nucleic acids, monoclonal antibodies, aptamers, and nanoparticulate drug carriers, has been mostly recommended by scientists in the last decades. Several covalent conjugation pathways are used for biomacromolecules coupling with nanomaterials in nanomedicine including carbodiimides and “click” mediated reactions, thiol-mediated conjugation, and biotin-avidin interactions. However, choosing one or a combination of these methods with suitable coupling for application to advanced drug delivery is essential. This review focuses on new and high impacted published articles in the field of nanoparticles and biomacromolecules coupling studies, as well as their advantages and applications.
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Affiliation(s)
- Abbas H. Azandaryani
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Soheila Kashanian
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Lv Q, Wang Y, Su C, Lakshmipriya T, Gopinath SC, Pandian K, Perumal V, Liu Y. Human papilloma virus DNA-biomarker analysis for cervical cancer: Signal enhancement by gold nanoparticle-coupled tetravalent streptavidin-biotin strategy. Int J Biol Macromol 2019; 134:354-360. [DOI: 10.1016/j.ijbiomac.2019.05.044] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
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Ramanathan S, Gopinath SCB, Arshad MKM, Poopalan P, Anbu P. A DNA based visual and colorimetric aggregation assay for the early growth factor receptor (EGFR) mutation by using unmodified gold nanoparticles. Mikrochim Acta 2019; 186. [DOI: 10.1007/s00604-019-3696-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023]
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Zheng S, Zhang H, Lakshmipriya T, Gopinath SCB, Yang N. Gold Nanorod Integrated Electrochemical Sensing for Hyperglycaemia on Interdigitated Electrode. Biomed Res Int 2019; 2019:9726967. [PMID: 31380444 PMCID: PMC6662476 DOI: 10.1155/2019/9726967] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/30/2019] [Accepted: 07/03/2019] [Indexed: 11/17/2022]
Abstract
Gestational diabetes (hyperglycaemia) is an elevated blood sugar level diagnosed during the period of pregnancy and affects the baby's health. Hyperglycaemia has been found within the gestational weeks between 24 and 28, and the foetus has also the possibility of getting out prior to this test frame; it causes excessive birth weight, early birth, low-blood sugar level, respiratory distress syndrome, and type-2 diabetes to the mother. It creates a mandatory situation to identify the hyperglycaemia at least during the pregnancy weeks from 18 to 20. Further, a continuous monitoring of the level of glucose is necessary for the proper delivery. In this work, a method is introduced for glucose detection at 0.06 mg/mL, assisted by gold nanorod (GNR)-conjugated glucose oxidase (GOx) on interdigitated electrode sensor. In the absence of GNR, GOx shows the limit of glucose detection to be 0.25 mg/mL. Moreover, with GOx-GNR the reactions of all the glucose concentrations have recorded higher levels of the current from the baseline. With the specificity analysis, it was found that the glucose only reacts with GOx-GNR and discriminates other sugars efficiently. This method of detection is useful to diagnose and continuously monitor the glucose level during the pregnancy period.
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Affiliation(s)
- Shumin Zheng
- Department of Obstetrics, Dezhou People's Hospital, No. 1166 Dongfanghong West Road, Dezhou, Shandong Province, 253014, China
| | - Hong Zhang
- Department of Obstetrics, Dezhou People's Hospital, No. 1166 Dongfanghong West Road, Dezhou, Shandong Province, 253014, China
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - Subash C. B. Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia
| | - Na Yang
- Department of Obstetrics, Dezhou People's Hospital, No. 1166 Dongfanghong West Road, Dezhou, Shandong Province, 253014, China
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Guo S, Lakshmipriya T, Gopinath SCB, Anbu P, Feng Y. Complementation of ELISA and an Interdigitated Electrode Surface in Gold Nanoparticle Functionalization for Effective Detection of Human Blood Clotting Defects. Nanoscale Res Lett 2019; 14:222. [PMID: 31267309 PMCID: PMC6606688 DOI: 10.1186/s11671-019-3058-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/20/2019] [Indexed: 05/07/2023]
Abstract
Developing an enhanced diagnosis using biosensors is important for the treatment of patients before disease complications arise. Improving biosensors would enable the detection of various low-abundance disease biomarkers. Efficient immobilization of probes/receptors on the sensing surface is one of the efficient ways to enhance detection. Herein, we introduced the pre-alkaline sensing surface with amine functionalization for capturing gold nanoparticle (GNP) conjugated to human blood clotting factor IX (FIX), and we demonstrated the excellent performance of the strategy. We have chosen the enzyme-linked immunosorbent assay (ELISA) and the interdigitated electrode (IDE), which are widely used, to demonstrate our method. The optimal amount for silanization has been found to be 2.5%, and 15-nm-sized GNPs are ideal and characterized. The limit of FIX detection was attained with ELISA at 100 pM with the premixed GNPs and FIX, which shows 60-fold improvement in sensitivity without biofouling, as compared to the conventional ELISA. Further, FIX was detected with higher specificity in human serum at a 1:1280 dilution, which is equivalent to 120 pM FIX. These results were complemented by the analysis on IDE, where improved detection at 25 pM was achieved, and FIX was detected in human serum at the dilution of 1:640. These optimized surfaces are useful for improving the detection of different diseases on varied sensing surfaces.
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Affiliation(s)
- Shikui Guo
- Department of General Surgery, The First People’s Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032 Yunnan China
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| | - Subash C. B. Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis Malaysia
| | - Periasamy Anbu
- Department of Biological Engineering, College of Engineering, Inha University, Incheon, 402-751 Republic of Korea
| | - Yaoyu Feng
- Department of Vascular Surgery, The First Affiliated Hospital of Kunming Medical University, Kumming, 650032 Yunnan China
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Mishra M, Tiwari S, Gunaseelan A, Li D, Hammock BD, Gomes AV. Improving the sensitivity of traditional Western blotting via Streptavidin containing Poly-horseradish peroxidase (PolyHRP). Electrophoresis 2019; 40:1731-1739. [PMID: 31021001 DOI: 10.1002/elps.201900059] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/15/2019] [Accepted: 04/22/2019] [Indexed: 11/10/2022]
Abstract
Immunoassays such as ELISAs and Western blotting have been the common choice for protein validation studies for the past several decades. Technical advancements and modifications are continuously being developed to enhance the detection sensitivity of these procedures. Among them, Streptavidin-containing poly-horseradish peroxidase (PolyHRP) based detection strategies have been shown to improve signals in ELISA. The use of commercially available Streptavidin and antibodies conjugated with many HRPs (PolyHRPs) to potentially enhance the detection sensitivity in Western blotting has not been previously investigated in a comprehensive manner. The use of PolyHRP-secondary antibody instead of HRP-secondary antibody increased the Western blotting sensitivity up to 85% depending on the primary antibody used. The use of a biotinylated secondary antibody and commercially available Streptavidin-conjugated with HRP or PolyHRP all resulted in increased sensitivity with respect to antigen detection. Utilizing a biotinylated secondary antibody and Streptavidin-conjugated PolyHRP resulted in as much as a 110-fold increase in Western blotting sensitivity over traditional Western blotting methods. Quantification of troponin I in rat heart lysates showed that the traditional Western blotting method only detected troponin I in ≥2 μg of lysate while Streptavidin-conjugated PolyHRP20 detected troponin I in ≥50 ng of lysate. A modified blocking procedure is also described that eliminated the interference caused by the endogenous biotinylated proteins. These results suggest that Streptavidin-conjugated PolyHRP and PolyHRP secondary antibodies are likely to be commonly utilized for Western blots in the future.
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Affiliation(s)
- Manish Mishra
- Department of Neurobiology, Physiology and Behavior University of California, Davis, CA, USA
| | - Shuchita Tiwari
- Department of Neurobiology, Physiology and Behavior University of California, Davis, CA, USA
| | - Anita Gunaseelan
- Department of Neurobiology, Physiology and Behavior University of California, Davis, CA, USA
| | - Dongyang Li
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Aldrin V Gomes
- Department of Neurobiology, Physiology and Behavior University of California, Davis, CA, USA
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Letchumanan I, Gopinath SCB, Md Arshad MK, Anbu P, Lakshmipriya T. Gold nano-urchin integrated label-free amperometric aptasensing human blood clotting factor IX: A prognosticative approach for "Royal disease". Biosens Bioelectron 2019; 131:128-135. [PMID: 30826647 DOI: 10.1016/j.bios.2019.02.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 02/06/2019] [Indexed: 12/16/2022]
Abstract
This article is clearly presenting the development of a biosensor for human factor IX (FIX) to diagnose the blood clotting deficiency, a so-called 'Royal disease' using an interdigitated electrode (IDE) with the zinc oxide surface modification. Gold nano-urchins (GNUs) with 60 nm in diameter was integrated into a streptavidin-biotinylated aptamer strategy to enhance the active surface area. Two different comparative studies have been done to validate the system to be practiced in the current work holds with a higher capability for the high-performance sense. Whereby, the presence and absence of GNUs in the aptasensing system for FIX interaction were investigated using the amperometric measurement, using a linear sweep voltage of 0-2 V at 0.01 V step voltage. The detection limit was 6 pM based on 3σ calculation when GNUs integrated aptamer assay was utilized for FIX detection, which shows 8 folds sensitivity enhancement comparing the condition in the absence of GNU and 50 folds higher than sensitive radio-isotope and surface plasmon resonance assays. Albeit, the surface and molecular characterizations were well demonstrated by scanning electron microscopy, atomic force microscopy, 3D nano-profilometry and further supports were rendered by UV-Vis spectroscopy and Enzyme-linked apta-sorbent assay (ELASA). Furthermore, the spiking experiment was done by FIX-spikes in human blood serum in order to demonstrate the stability with a higher non-fouling.
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Affiliation(s)
- Iswary Letchumanan
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia; School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
| | - M K Md Arshad
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia; School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra, Arau 02600, Perlis, Malaysia
| | - Periasamy Anbu
- Department of Biological Engineering, College of Engineering, Inha University, Incheon 402-751, Republic of Korea
| | - Thangavel Lakshmipriya
- Centre of Innovative Nanostructure & Nanodevices, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
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Li P, Lei Y, Li Q, Lakshmipriya T, Gopinath SCB, Gong X. Diagnosing Perioperative Cardiovascular Risks in Noncardiac Surgery Patients. J Anal Methods Chem 2019; 2019:6097375. [PMID: 31534814 PMCID: PMC6732619 DOI: 10.1155/2019/6097375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/16/2019] [Indexed: 05/12/2023]
Abstract
Every year, over 200 million adults are undergoing noncardiac surgery. These noncardiac surgery patients may face the risk of cardiac mortality and morbidity during the perioperative and recovery periods. Around ten million patients who underwent noncardiac surgery experience cardiac complications within the first 30 days of the postoperative period; the complications are myocardial infarction, cardiac death, and cardiac arrest. This cardiovascular risk is mostly faced by the patients having cerebrovascular or cardiac disease and the patients with the age greater than 50 years. Monitoring and treating cardiac diseases with a suitable biomarker during the perioperative period is necessary for the early recovery of noncardiac surgery patients. This review discussed the risk factors and the key guidelines to avoid the cardiovascular risks during the perioperative period of noncardiac surgery patients. In addition, the biomarkers and identification strategies for cardiac diseases are discussed.
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Affiliation(s)
- Panpan Li
- Department of Encephalopathy, Ankang Traditional Chinese Medicine Hospital, No. 47, Bashan East Road, Hanbin District, Ankang City, Shaanxi Province 725000, China
| | - Ying Lei
- Department of Functional (ECG Room), Ankang Traditional Chinese Medicine Hospital, No. 47, Bashan East Road, Hanbin District, Ankang City, Shaanxi Province 725000, China
| | - Qiaomei Li
- Operating Room, Ankang Traditional Chinese Medicine Hospital, No. 47, Bashan East Road, Hanbin District, Ankang City, Shaanxi Province 725000, China
| | - Thangavel Lakshmipriya
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
| | - Subash C. B. Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia
| | - Xinwen Gong
- Department of Cardiology, Ankang Traditional Chinese Medicine Hospital, No. 47, Bashan East Road, Hanbin District, Ankang City, Shaanxi Province 725000, China
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Terse-Thakoor T, Ramnani P, Villarreal C, Yan D, Tran TT, Pham T, Mulchandani A. Graphene nanogap electrodes in electrical biosensing. Biosens Bioelectron 2018; 126:838-844. [PMID: 30602266 DOI: 10.1016/j.bios.2018.11.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 11/16/2022]
Abstract
Graphene nanogap electrodes are reported here for the first time in an electrical biosensor for the detection of biomolecular interactions. Streptavidin-biotin was chosen as a model system for evaluating the sensor's performance. High-affinity interactions of streptavidin-gold nanoparticles (strep-AuNPs) to the biotin-functionalized nanogap localizes AuNPs, thereby bridging the gap and resulting in changes in device conductance. Biosensing performance was optimized by varying the gap size, AuNP diameter, and streptavidin coverage on AuNPs. The sensitivity and limit of detection (LOD) of streptavidin detection with the optimized parameters were determined to be 0.3 µA/nM and 0.25 pM, respectively. The proposed platform suggests high potential as a portable point-of-use biosensor for the detection of other affinity-based biomolecular interactions, such as antigen-antibody, nucleic acid, or chemo-selective interactions.
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Affiliation(s)
- Trupti Terse-Thakoor
- Department of Bioengineering, University of California, Riverside, CA 92521, United States.
| | - Pankaj Ramnani
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States
| | - Claudia Villarreal
- Materials Science and Engineering Program, University of California, Riverside, CA 92521, United States
| | - Dong Yan
- Center for Nanoscale Science and Engineering (CNSE), University of California, Riverside, CA 92521, United States
| | - Thien-Toan Tran
- Department of Bioengineering, University of California, Riverside, CA 92521, United States; Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States
| | - Tung Pham
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States
| | - Ashok Mulchandani
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States; Materials Science and Engineering Program, University of California, Riverside, CA 92521, United States.
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