1
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Hanif S, Muhammad P, Niu Z, Ismail M, Morsch M, Zhang X, Li M, Shi B. Nanotechnology‐Based Strategies for Early Diagnosis of Central Nervous System Disorders. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Sumaira Hanif
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Pir Muhammad
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Zheng Niu
- Province's Key Lab of Brain Targeted Bionanomedicine School of Pharmacy Henan University Kaifeng Henan 475004 China
| | - Muhammad Ismail
- Henan-Macquarie University Joint Centre for Biomedical Innovation School of Life Sciences Henan University Kaifeng Henan 475004 China
| | - Marco Morsch
- Department of Biomedical Sciences Macquarie University Centre for Motor Neuron Disease Research Macquarie University NSW 2109 Australia
| | - Xiaoju Zhang
- Department of Respiratory and Critical Care Medicine Henan Provincial People's Hospital Zhengzhou Henan 450003 China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine The Third Affiliated Hospital Sun Yat-sen University Guangzhou Guangdong 510630 China
| | - Bingyang Shi
- Department of Biomedical Sciences Faculty of Medicine & Health & Human Sciences Macquarie University NSW 2109 Australia
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2
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Machado D, Almeida D, Seabra CL, Andrade JC, Gomes AM, Freitas AC. Nanoprobiotics: When Technology Meets Gut Health. FUNCTIONAL BIONANOMATERIALS 2020. [DOI: 10.1007/978-3-030-41464-1_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Dharanivasan G, Jesse DM, Rajamuthuramalingam T, Rajendran G, Shanthi S, Kathiravan K. Scanometric Detection of Tomato Leaf Curl New Delhi Viral DNA Using Mono- and Bifunctional AuNP-Conjugated Oligonucleotide Probes. ACS OMEGA 2019; 4:10094-10107. [PMID: 31460102 PMCID: PMC6648060 DOI: 10.1021/acsomega.9b00340] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/15/2019] [Indexed: 05/07/2023]
Abstract
Scanometric detection of tomato leaf curl New Delhi viral DNA using AuNP-conjugated mono- and bifunctional oligo probes through direct DNA hybridization assay (DDH assay) and sandwich DNA hybridization assay (SDH assay) with silver enhancement was developed. Tomato leaf curl New Delhi virus (ToLCNDV) coat protein gene-specific thiol-modified ssoligo probes were used for the preparation of mono- and bifunctional AuNP-ssoligo probe conjugates (signal probes). ssDNA arrays were prepared using polymerase chain reaction (PCR), rolling circle amplification (RCA), genomic DNAs fragments, and phosphate-modified positive control/capture probes through 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide/1-methylimidazole conjugation on the amine-modified glass slide (GS) surface. In the DDH assay, signal probes were directly hybridized with ssDNA array of positive control and ToLCNDV DNA samples and the detection signals were amplified by silver enhancement. Dark black/gray colors were developed on the GS by the result of Ag enhancement, which can be visualized and discriminated by the naked eye. The images were captured using a simple flatbed scanner, and the determined amounts of signal probes were hybridized with their target DNA. Similarly, the SDH assay also performed through two rounds of hybridization between capture probes and target DNA; target DNA and signal probes followed by silver enhancement. The detection signals were found higher in the PCR sample than the RCA and genomic DNA samples because of the presence of increased copy numbers of complementary DNAs in PCR samples. Further, bifunctional AuNP-ssoligo probe shows higher intensity of detection signal than monofunctional probes because it can be hybridized with both strands of dsDNA targets. Moreover, the DDH-based scanometric method showed higher detection sensitivity than the SDH assay-based scanometric method. Overall, bifunctional signal probes showed more detection sensitivity than monofunctional probes in scanometric methods based on both DDH and SDH assays. The limit of detection of this developed scanometric method was optimized (100 zM to 100 pM concentration). Further, DDH assay-based scanometric method shows significant advantages over the SDH assay method, such as cost-effectiveness, because it requires only single probes (signal probes), less time-consuming by the need of only single-step hybridization, and higher detection sensitivity (up to zM). To the best of our knowledge, this is the first attempt made to develop a scanometric-based nanoassay method for the detection of plant viral DNA. This approach will be a remarkable milestone for the application of nanotechnology in the development of nanobiosensor for plant pathogen detection.
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Affiliation(s)
- Gunasekaran Dharanivasan
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
| | - Denison Michael
Immanuel Jesse
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
| | - Thangavelu Rajamuthuramalingam
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
| | - Ganapathy Rajendran
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
| | - Sathappan Shanthi
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
| | - Krishnan Kathiravan
- Department
of Biotechnology and Department of Zoology, University of Madras, Guindy Campus, Chennai 600025, Tamil
Nadu, India
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4
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Xu Y, Huo B, Li C, Peng Y, Tian S, Fan L, Bai J, Ning B, Gao Z. Ultrasensitive detection of staphylococcal enterotoxin B in foodstuff through dual signal amplification by bio-barcode and real-time PCR. Food Chem 2019; 283:338-344. [DOI: 10.1016/j.foodchem.2018.12.128] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/20/2018] [Accepted: 12/29/2018] [Indexed: 02/04/2023]
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5
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MA Z, ZHUANG HS, YANG GX. An Ultrasensitive Real-time Immuno-polymerase Chain Reaction Assay for Detection of Tetrabromobisphenol A in PM2.5 Particles Using Functionalized Nanoprobes. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61151-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Dong A, Brown C, Bai S, Dong J. Acid-enhanced conformation changes of yeast cytochrome c coated onto gold nanoparticles, a FT-IR spectroscopic analysis. Int J Biol Macromol 2018; 112:591-597. [DOI: 10.1016/j.ijbiomac.2018.01.202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/20/2018] [Accepted: 01/30/2018] [Indexed: 02/04/2023]
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7
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Ma Z, Zhuang H. An ultrasensitive biological probe enhanced RT-IPCR assay for detecting benzo[a]pyrene in environmental samples based on the specific polyclonal antibody. Acta Biochim Biophys Sin (Shanghai) 2018; 50:381-390. [PMID: 29554193 DOI: 10.1093/abbs/gmy020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Indexed: 01/20/2023] Open
Abstract
Benzo[a]pyrene (BaP), a type of polycyclic aromatic hydrocarbon, is widely distributed in the environment. In this study, BaP immunogen and coating antigen were respectively prepared by different methods, and the specific antibody targeting the BaP analyte was obtained. Moreover, gold nanoparticles modified with the specific polyclonal antibody and thiol-capped DNA were prepared as biological probes. Based on the work above, an ultrasensitive biological probe enhanced real-time immuno-polymerase chain reaction (BP-rt-iPCR) assay was developed to detect BaP in several environmental samples. Under optimal conditions, the proposed method was used to detect BaP with a linearity ranging from 5 pg/l to 50 ng/l. The limit of detection was 1.63 pg/l. The recovery rates of the spiked samples ranged from 92.12% to 109.76% and the coefficients of variation were 7.53%-11.06%. This immunoassay was successfully used to detect BaP in environmental samples, and the BaP detection results were consistent with those obtained using high performance liquid chromatography, indicating that the BP-rt-iPCR method is accurate and reliable, and has great potential to detect trace amounts of BaP.
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Affiliation(s)
- Zhen Ma
- Institute for Environmental Monitoring and Evaluation, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huisheng Zhuang
- Institute for Environmental Monitoring and Evaluation, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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8
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Wei TY, Fu Y, Chang KH, Lin KJ, Lu YJ, Cheng CM. Point-of-Care Devices Using Disease Biomarkers To Diagnose Neurodegenerative Disorders. Trends Biotechnol 2017; 36:290-303. [PMID: 29242004 DOI: 10.1016/j.tibtech.2017.11.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 11/16/2017] [Accepted: 11/17/2017] [Indexed: 12/16/2022]
Abstract
Neurodegenerative disorders such as Alzheimer's, Parkinson's, and Huntington's diseases are highly prevalent and immensely destructive to the health and well-being of individuals and their families across the globe. Neurodegenerative diseases are characterized by the gradual loss of neural tissue in the central nervous system. Clearly, early diagnosis of the onset of neurodegeneration is vital and beneficial. Current diagnostic methods rely heavily on symptoms or autopsy results, thus overlooking early diagnosis, the only opportunity for amelioration. However, appropriately selected and used biomarker diagnostics provide a solution. This article reviews the development and application of biomarker-related diagnostics for neurodegenerative disease with specific recommendations for point-of-care (POC) methodology. These advantageous approaches may offer a solution to existing obstacles and limitations to neurodegenerative disease treatment.
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Affiliation(s)
- Ting-Yen Wei
- Interdisciplinary Program of Life Science, National Tsing Hua University, Hsinchu 30013, Taiwan; These authors contributed equally
| | - Yun Fu
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan 33305, Taiwan; These authors contributed equally
| | - Kuo-Hsuan Chang
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
| | - Kun-Ju Lin
- Animal Molecular Imaging Center and Department of Nuclear Medicine, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan 33305, Taiwan
| | - Yu-Jen Lu
- Department of Neurosurgery, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan.
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
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9
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Jung IY, Lee EH, Suh AY, Lee SJ, Lee H. Oligonucleotide-based biosensors for in vitro diagnostics and environmental hazard detection. Anal Bioanal Chem 2016; 408:2383-406. [PMID: 26781106 DOI: 10.1007/s00216-015-9212-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/19/2015] [Accepted: 11/23/2015] [Indexed: 02/06/2023]
Abstract
Oligonucleotide-based biosensors have drawn much attention because of their broad applications in in vitro diagnostics and environmental hazard detection. They are particularly of interest to many researchers because of their high specificity as well as excellent sensitivity. Recently, oligonucleotide-based biosensors have been used to achieve not only genetic detection of targets but also the detection of small molecules, peptides, and proteins. This has further broadened the applications of these sensors in the medical and health care industry. In this review, we highlight various examples of oligonucleotide-based biosensors for the detection of diseases, drugs, and environmentally hazardous chemicals. Each example is provided with detailed schematics of the detection mechanism in addition to the supporting experimental results. Furthermore, future perspectives and new challenges in oligonucleotide-based biosensors are discussed.
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Affiliation(s)
- Il Young Jung
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Eun Hee Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Ah Young Suh
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Seung Jin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Hyukjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea.
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10
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Cornaglia M, Trouillon R, Tekin HC, Lehnert T, Gijs MAM. Dose-response curve of a microfluidic magnetic bead-based surface coverage sandwich assay. N Biotechnol 2015; 32:433-40. [PMID: 25817550 DOI: 10.1016/j.nbt.2015.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/19/2015] [Accepted: 03/13/2015] [Indexed: 10/23/2022]
Abstract
Magnetic micro- and nanoparticles ('magnetic beads') have been used to advantage in many microfluidic devices for sensitive antigen (Ag) detection. Today, assays that use as read-out of the signal the number count of immobilized beads on a surface for quantification of a sample's analyte concentration have been among the most sensitive and have allowed protein detection lower than the fgmL(-1) concentration range. Recently, we have proposed in this category a magnetic bead surface coverage assay (Tekin et al., 2013 [1]), in which 'large' (2.8μm) antibody (Ab)-functionalized magnetic beads captured their Ag from a serum and these Ag-carrying beads were subsequently exposed to a surface pattern of fixed 'small' (1.0μm) Ab-coated magnetic beads. When the system was exposed to a magnetic induction field, the magnet dipole attractive interactions between the two bead types were used as a handle to approach both bead surfaces and assist with Ag-Ab immunocomplex formation, while unspecific binding (in absence of an Ag) of a large bead was reduced by exploiting viscous drag flow. The dose-response curve of this type of assay had two remarkable features: (i) its ability to detect an output signal (i.e. bead number count) for very low Ag concentrations, and (ii) an output signal of the assay that was non-linear with respect to Ag concentration. We explain here the observed dose-response curves and show that the type of interactions and the concept of our assay are in favour of detecting the lowest analyte concentrations (where typically either zero or one Ag is carried per large bead), while higher concentrations are less efficiently detected. We propose a random walk process for the Ag-carrying bead over the magnetic landscape of small beads and this model description explains the enhanced overall capture probability of this assay and its particular non-linear dose response curves.
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Affiliation(s)
- Matteo Cornaglia
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Raphaël Trouillon
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - H Cumhur Tekin
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Thomas Lehnert
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Martin A M Gijs
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.
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11
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Sun R, Zhuang H. An ultrasensitive gold nanoparticles improved real-time immuno-PCR assay for detecting diethyl phthalate in foodstuff samples. Anal Biochem 2015; 480:49-57. [PMID: 25871517 DOI: 10.1016/j.ab.2015.04.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/02/2015] [Accepted: 04/06/2015] [Indexed: 10/23/2022]
Abstract
A specific polyclonal antibody targeting diethyl phthalate (DEP) with the higher antibody titer at 1:120,000 has been obtained, and an ultrasensitive and high-throughput direct competitive gold nanoparticles improved real-time immuno-PCR (GNP-rt-IPCR) technique has been developed for detecting DEP in foodstuff samples. Under optimal conditions, a rather low linearity is achieved within a range of 4 pg L(-1) to 40 ng L(-1), and the limit of detection (LOD) is 1.06 pg L(-1). Otherwise, the GNP-rt-IPCR technique is highly selective, with low cross-reactivity values for DEP analogs (<5%). Finally, the concentrations of DEP in foodstuff samples by the GNP-rt-IPCR method range from 0.48 to 41.88 μg kg(-1). Satisfactory recoveries (88.39-112.79%) and coefficient of variation values (8.38-12.77%) are obtained. The consistency between the results obtained from GNP-rt-IPCR and gas chromatography-mass spectrometry (GC-MS) is 98.3%, which further proves that GNP-rt-IPCR is an accurate, reliable, rapid, ultrasensitive, and high-throughput method for batch determination of trace amounts of DEP in foodstuff samples.
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Affiliation(s)
- Ruiyan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Huisheng Zhuang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
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12
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Bu D, Zhuang H. A real-time immuno-PCR assay for the flame retardant tris(2,3-dibromopropyl) isocyanurate using a probe DNA conjugated to gold nanoparticles. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1416-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Busquets MA, Sabaté R, Estelrich J. Potential applications of magnetic particles to detect and treat Alzheimer's disease. NANOSCALE RESEARCH LETTERS 2014; 9:538. [PMID: 25288921 PMCID: PMC4185209 DOI: 10.1186/1556-276x-9-538] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 09/20/2014] [Indexed: 05/10/2023]
Abstract
Nanotechnology is an exciting and promising scientific discipline. At the nanoscale, a material displays novel physical properties that offer many new and beneficial products and applications. In particular, magnetic nanoparticles - a core/shell nanoparticle - present considerable diagnostic and therapeutic potentials, and superparamagnetic iron oxide nanoparticles (SPIONs) are considered promising theranostic tools. Alzheimer's disease (AD) is a neurodegenerative disorder that predominantly affects people over 65 years of age. The disease is characterized by the presence of extracellular plaques in the brain which are formed by interwoven fibrils composed of variants of the β-amyloid peptide. Medication can temporarily retard worsening of symptoms, but only in the first stages of the disease; early detection is thus of crucial importance. This minireview covers the progress made in research on the use of magnetic nanoparticles for ex vivo and/or in vivo detection and diagnosis of AD by means of magnetic resonance imaging (MRI), or to label peptides and fibrils. Of particular importance is the use of these nanoparticles to detect AD biomarkers in biological fluids. A description is given of the bio-barcode amplification assay using functionalized magnetic particles, as well as the use of such nanoparticles as a system for inhibiting or delaying the assembly of peptide monomers into oligomers and fibrils. Lastly, a brief overview is given of possible future lines of research in this.
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Affiliation(s)
- Maria Antònia Busquets
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Catalonia, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Catalonia, Spain
| | - Raimon Sabaté
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Catalonia, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Catalonia, Spain
| | - Joan Estelrich
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Catalonia, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Catalonia, Spain
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14
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Yang GX, Zhuang HS, Chen HY, Ping XY, Bu D. A sensitive immunosorbent bio-barcode assay based on real-time immuno-PCR for detecting 3,4,3',4'-tetrachlorobiphenyl. Anal Bioanal Chem 2014; 406:1693-700. [DOI: 10.1007/s00216-013-7583-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/21/2013] [Accepted: 12/14/2013] [Indexed: 11/25/2022]
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15
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Tekin HC, Gijs MAM. Ultrasensitive protein detection: a case for microfluidic magnetic bead-based assays. LAB ON A CHIP 2013; 13:4711-39. [PMID: 24145920 DOI: 10.1039/c3lc50477h] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We review the use of magnetic micro- and nanoparticles ('magnetic beads') in microfluidic systems for ultrasensitive protein detection. During recent years magnetic beads have been used frequently in immunoassays, either as mobile substrates on which the target antigen is captured, as detection labels, or simultaneously as substrates and labels. The major part of the reviewed work has as application the detection of antibodies or disease biomarkers in serum or of biotoxins from food samples. Several of the most sensitive assays allow protein detection down to fg mL(-1) concentrations. We benchmark the performance of these microfluidic magnetic bead-based assays with the most promising earlier work and with alternative solutions.
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Affiliation(s)
- H Cumhur Tekin
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
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16
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Park H, Hwang MP, Lee KH. Immunomagnetic nanoparticle-based assays for detection of biomarkers. Int J Nanomedicine 2013; 8:4543-52. [PMID: 24285924 PMCID: PMC3841294 DOI: 10.2147/ijn.s51893] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The emergence of biomarkers as key players in the paradigm shift towards preventative medicine underscores the need for their detection and quantification. Advances made in the field of nanotechnology have played a crucial role in achieving these needs, and have contributed to recent advances in the field of medicine. Nanoparticle-based immunomagnetic assays, in particular, offer numerous advantages that utilize the unique physical properties of magnetic nanoparticles. In this review, we focus on recent developments and trends with regards to immunomagnetic assays used for detection of biomarkers. The various immunomagnetic assays are categorized into the following: particle-based multiplexing, signal control, microfluidics, microarray, and automation. Herein, we analyze each category and discuss their advantages and disadvantages.
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Affiliation(s)
- Hoyoung Park
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Republic of Korea ; Department of Biomedical Engineering, University of Science and Technology, Seoul, Republic of Korea
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George S, Chaudhery V, Lu M, Takagi M, Amro N, Pokhriyal A, Tan Y, Ferreira P, Cunningham BT. Sensitive detection of protein and miRNA cancer biomarkers using silicon-based photonic crystals and a resonance coupling laser scanning platform. LAB ON A CHIP 2013; 13:4053-64. [PMID: 23963502 PMCID: PMC4522268 DOI: 10.1039/c3lc50579k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Enhancement of the fluorescent output of surface-based fluorescence assays by performing them upon nanostructured photonic crystal (PC) surfaces has been demonstrated to increase signal intensities by >8000×. Using the multiplicative effects of optical resonant coupling to the PC in increasing the electric field intensity experienced by fluorescent labels ("enhanced excitation") and the spatially biased funneling of fluorophore emissions through coupling to PC resonances ("enhanced extraction"), PC enhanced fluorescence (PCEF) can be adapted to reduce the limits of detection of disease biomarker assays, and to reduce the size and cost of high sensitivity detection instrumentation. In this work, we demonstrate the first silicon-based PCEF detection platform for multiplexed biomarker assay. The sensor in this platform is a silicon-based PC structure, comprised of a SiO2 grating that is overcoated with a thin film of high refractive index TiO2 and is produced in a semiconductor foundry for low cost, uniform, and reproducible manufacturing. The compact detection instrument that completes this platform was designed to efficiently couple fluorescence excitation from a semiconductor laser to the resonant optical modes of the PC, resulting in elevated electric field strength that is highly concentrated within the region <100 nm from the PC surface. This instrument utilizes a cylindrically focused line to scan a microarray in <1 min. To demonstrate the capabilities of this sensor-detector platform, microspot fluorescent sandwich immunoassays using secondary antibodies labeled with Cy5 for two cancer biomarkers (TNF-α and IL-3) were performed. Biomarkers were detected at concentrations as low as 0.1 pM. In a fluorescent microarray for detection of a breast cancer miRNA biomarker miR-21, the miRNA was detectable at a concentration of 0.6 pM.
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Affiliation(s)
- Sherine George
- Department of Bioengineering, 1304 West Springfield Avenue, University of Illinois, Urbana-Champaign, Illinois, 61801, USA.
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Zengin A, Tamer U, Caykara T. A SERS-Based Sandwich Assay for Ultrasensitive and Selective Detection of Alzheimer’s Tau Protein. Biomacromolecules 2013; 14:3001-9. [DOI: 10.1021/bm400968x] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Adem Zengin
- Department of Chemistry, Faculty
of Science, Gazi University, 06500 Besevler,
Ankara, Turkey
| | - Ugur Tamer
- Department
of Analytical Chemistry,
Faculty of Pharmacy, Gazi University, 06330
Etiler, Ankara, Turkey
| | - Tuncer Caykara
- Department of Chemistry, Faculty
of Science, Gazi University, 06500 Besevler,
Ankara, Turkey
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Park H, Hwang MP, Lee JW, Choi J, Lee KH. Harnessing immunomagnetic separation and quantum dot-based quantification capacities for the enumeration of absolute levels of biomarker. NANOTECHNOLOGY 2013; 24:285103. [PMID: 23787774 DOI: 10.1088/0957-4484/24/28/285103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The field of biomarker quantification has experienced a growth parallel to the discovery of new materials. In this paper, we propose an innovative system for the separation and quantification of biomarkers using a simple magnetic bead (MB)-quantum dot (QD) sandwich assay. The basis of the system lies in the interaction between histidine residues on protein G and Ni ions on QDs, and the use of imidazole to selectively detach QDs bound to target biomarkers, in effect enumerating the absolute number of biomarker units. We used C-reactive protein (CRP) as a proof-of-concept and demonstrated a detection sensitivity of 82.5 fmoles in 50 μl of sample volume, a commonly used analytical volume (e.g. ELISA). Although CRP was used as a model to conduct this study, the sensitivity and simplicity of this detachable system make it a viable approach in the quantification of other target analytes.
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Affiliation(s)
- Hoyoung Park
- Center for Biomaterials Biomedical Research Institute, Korea Institute of Science and Technology-KIST, Seoul 136-791, Republic of Korea
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Andrieux K, Couvreur P. Nanomedicine as a promising approach for the treatment and diagnosis of brain diseases: the example of Alzheimer's disease. ANNALES PHARMACEUTIQUES FRANÇAISES 2013; 71:225-33. [PMID: 23835020 DOI: 10.1016/j.pharma.2013.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/29/2013] [Accepted: 04/15/2013] [Indexed: 01/09/2023]
Abstract
Targeting of the central nervous system (CNS) in order to treat disorders is actually challenging due to the necessity to cross the blood brain barrier (BBB). This review aims to show how nanomedicine can propose new approach for the treatment and the diagnosis of CNS diseases focusing on Alzheimer's disease (AD). AD is a neurodegenerative disorder prevalent in the senile population. It is characterized by severe neuronal loss and proliferation of plaques composed of β-amyloid peptide (Aβ) and Tau protein deposites. An imbalance between production and clearance leading to the aggregation of Aβ peptides especially in neurotoxic forms, may be the initiating factor in AD. The absence of an effective therapeutic approach nowadays could be, in part, due to the bad knowledge of AD physiopathology and the lack of early diagnosis. Many drawbacks such as poor bioavailability or limited BBB arising of tested molecules in the current or new therapeutic strategies explain their failure but can be resolved by the use of nanotechnology. Examples of recently published works using nanoparticles for improving diagnosis and therapy of AD are presented. Ideal nanocarriers for this aim must be able to pass through the BBB and to interact with an AD marker as soluble extracellular Aβ forms which are known as the most toxic ones. These first results, even if many ones were obtained in vitro, brought to light the potential of nanoparticles for this challenging issue.
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Affiliation(s)
- K Andrieux
- Institut Galien Paris-Sud, UMR CNRS 8612, faculté de pharmacie, université Paris-Sud, 5, rue Jean-Baptiste-Clément, 92296 Châtenay-Malabry cedex, France.
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Azzazy HM, Mansour MM, Samir TM, Franco R. Gold nanoparticles in the clinical laboratory: principles of preparation and applications. ACTA ACUST UNITED AC 2012; 50:193-209. [DOI: 10.1515/cclm.2011.732] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Accepted: 08/28/2011] [Indexed: 12/20/2022]
Abstract
AbstractIn order to meet the challenges of effective healthcare, the clinical laboratory is constantly striving to improve testing sensitivity while reducing the required time and cost. Gold nanoparticles (AuNPs) are proposed as one of the most promising tools to meet such goals. They have unique optophysical properties which enable sensitive detection of biomarkers, and are easily amenable to modification for use in different assay formats including immunoassays and molecular assays. Additionally, their preparation is relatively simple and their detection methods are quite versatile. AuNPs are showing substantial promise for effective practical applications and commercial utilization is already underway. This article covers the principles of preparation of AuNPs and their use for development of different diagnostic platforms.
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Abstract
The completion of the human genome project has led to intensified efforts toward comprehensive analysis of proteomes. New possibilities exist for efficient proteomic technologies. However, primary attention is given to the discovery of new predictive biomarker patterns. Understanding proteomes and, in particular, protein-mediated interactions underlying their complexity and diversity, is critical for the development of more reliable and robust diagnostic platforms, which are anticipated to enable personalized medicine. Of immediate relevance in this respect are those approaches that capitalize on the application of nanotechnology, which is seen as a powerful tool for the diagnosis of early-stage diseases. Here we highlight the current state of the field exemplified by recent nano-enabled technologies for biomarker discovery.
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Ray S, Reddy PJ, Choudhary S, Raghu D, Srivastava S. Emerging nanoproteomics approaches for disease biomarker detection: a current perspective. J Proteomics 2011; 74:2660-81. [PMID: 21596164 DOI: 10.1016/j.jprot.2011.04.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 03/15/2011] [Accepted: 04/28/2011] [Indexed: 01/29/2023]
Abstract
Availability of genome sequence of human and different pathogens has advanced proteomics research for various clinical applications. One of the prime goals of proteomics is identification and characterization of biomarkers for cancer and other fatal human diseases to aid an early diagnosis and monitor disease progression. However, rapid detection of low abundance biomarkers from the complex biological samples under clinically relevant conditions is extremely difficult, and it requires the development of ultrasensitive, robust and high-throughput technological platform. In order to overcome several technical limitations associated with sensitivity, dynamic range, detection time and multiplexing, proteomics has started integrating several emerging disciplines such as nanotechnology, which has led to the development of a novel analytical platform known as 'nanoproteomics'. Among the diverse classes of nanomaterials, the quantum dots, gold nanoparticles, carbon nanotubes and silicon nanowires are the most promising candidates for diagnostic applications. Nanoproteomics offers several advantages such as ultralow detection, short assay time, high-throughput capability and low sample consumption. In this article, we have discussed the application of nanoproteomics for biomarker discovery in various diseases with special emphasis on various types of cancer. Furthermore, we have discussed the prospects, merits and limitations of nanoproteomics.
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Affiliation(s)
- Sandipan Ray
- Wadhwani Research Center for Biosciences and Bioengineering, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
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Brambilla D, Le Droumaguet B, Nicolas J, Hashemi SH, Wu LP, Moghimi SM, Couvreur P, Andrieux K. Nanotechnologies for Alzheimer's disease: diagnosis, therapy, and safety issues. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 7:521-40. [PMID: 21477665 DOI: 10.1016/j.nano.2011.03.008] [Citation(s) in RCA: 171] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 03/07/2011] [Accepted: 03/22/2011] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) represents the most common form of dementia worldwide, affecting more than 35 million people. Advances in nanotechnology are beginning to exert a significant impact in neurology. These approaches, which are often based on the design and engineering of a plethora of nanoparticulate entities with high specificity for brain capillary endothelial cells, are currently being applied to early AD diagnosis and treatment. In addition, nanoparticles (NPs) with high affinity for the circulating amyloid-β (Aβ) forms may induce "sink effect" and improve the AD condition. There are also developments in relation to in vitro diagnostics for AD, including ultrasensitive NP-based bio-barcodes, immunosensors, as well as scanning tunneling microscopy procedures capable of detecting Aβ(1-40) and Aβ(1-42). However, there are concerns regarding the initiation of possible NP-mediated adverse events in AD, thus demanding the use of precisely assembled nanoconstructs from biocompatible materials. Key advances and safety issues are reviewed and discussed.
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Affiliation(s)
- Davide Brambilla
- Laboratoire de Physico-Chimie, Pharmacotechnie et Biopharmacie, Univ Paris-Sud, Faculté de Pharmacie, Châtenay-Malabry, France
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25
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Liu X, Wu H, Zheng Y, Wu Z, Jiang J, Shen G, Yu R. A Sensitive Electrochemical Immunosensor for α-Fetoprotein Detection with Colloidal Gold-Based Dentritical Enzyme Complex Amplification. ELECTROANAL 2010. [DOI: 10.1002/elan.200904698] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Lin YW, Liu CW, Chang HT. DNA functionalized gold nanoparticles for bioanalysis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2009; 1:14-24. [PMID: 32938137 DOI: 10.1039/b9ay00036d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gold nanoparticles (Au NPs) have become one of the most interesting sensing materials because of their unique size- and shape-dependent optical properties, high extinction coefficients, and super-quenching capability. Au NPs that are bioconjugated with DNA (DNA-Au NPs) have been demonstrated for selective and sensitive detection of analytes such as mercury(ii) ions, platelet-derived growth factor (PDGF), and adenosine triphosphate (ATP). This review focuses on approaches using DNA-Au NPs for colorimetric, fluorescent, and scattering detection of biopolymers and small solutes. We highlight the important roles that the size and concentration of Au NPs, the length and sequence of DNA, the nature of the capping agents, and the ionic strength and pH of solution play in determining the specificity and sensitivity of the nanosensors for the analytes. The advantages and disadvantages of different detection methods for sensing of interesting analytes using DNA-Au NPs will be discussed.
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Affiliation(s)
- Yang-Wei Lin
- Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, Taiwan.
| | - Chi-Wei Liu
- Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, Taiwan.
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, Taiwan.
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Neely A, Perry C, Varisli B, Singh AK, Arbneshi T, Senapati D, Kalluri JR, Ray PC. Ultrasensitive and highly selective detection of Alzheimer's disease biomarker using two-photon Rayleigh scattering properties of gold nanoparticle. ACS NANO 2009; 3:2834-40. [PMID: 19691350 PMCID: PMC2749966 DOI: 10.1021/nn900813b] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Alzheimer's disease (AD) is a progressive mental disorder disease, which affects 26.6 million people worldwide and estimated increments can be 100 millions by 2050. Since there is no cure at present, early diagnosis of AD is crucial for the current drug treatments. Driven by the need, here we demonstrate for the first time that monoclonal anti-tau antibody-coated gold nanoparticle based two-photon scattering assay can be used for the detection of Alzheimer's tau protein in the 1 pg/mL level which is about 2 orders of magnitude lower than cutoff values (195 pg/mL) for tau protein in CSF (cerebrospinal fluid). We have shown that when anti-tau antibody-coated gold nanoparticles were mixed with 20 ng/mL of tau protein, two-photon Rayleigh scattering intensity (TPRS) increases by about 16 times. The mechanism of TPRS intensity change has been discussed. Our data demonstrated that our TPRS assay is highly sensitive to tau protein and it can distinguish from BSA, which is one of the most abundant protein components in CSF. Our results demonstrate the potential for a broad application of this type of nanobionanotechnology in practical biomedical applications.
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Affiliation(s)
- Adria Neely
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Candice Perry
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Birsen Varisli
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Anant K. Singh
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Tahir Arbneshi
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Dulal Senapati
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Jhansi Rani Kalluri
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
| | - Paresh Chandra Ray
- Department of Chemistry, Jackson State University, Jackson, MS, USA , Fax: 601-979-3674
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28
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Chen W, Jiang Y, Ji B, Zhu C, Liu L, Peng C, Jin MK, Qiao R, Jin Z, Wang L, Zhu S, Xu C. Automated and ultrasensitive detection of methyl-3-quinoxaline-2-carboxylic acid by using gold nanoparticles probes SIA-rt-PCR. Biosens Bioelectron 2009; 24:2858-63. [DOI: 10.1016/j.bios.2009.02.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Revised: 02/12/2009] [Accepted: 02/13/2009] [Indexed: 10/21/2022]
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29
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Azzazy HME, Mansour MMH. In vitro diagnostic prospects of nanoparticles. Clin Chim Acta 2009; 403:1-8. [PMID: 19361470 DOI: 10.1016/j.cca.2009.01.016] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2008] [Revised: 12/31/2008] [Accepted: 01/09/2009] [Indexed: 12/26/2022]
Abstract
There is a constant need to improve the performance of current diagnostic assays as well as develop innovative testing strategies to meet new testing challenges. The use of nanoparticles promises to help promote in vitro diagnostics to the next level of performance. Quantum dots (QDs), gold nanoparticles (AuNPs), and superparamagnetic nanoparticles are the most promising nanostructures for in vitro diagnostic applications. These nanoparticles can be conjugated to recognition moieties such as antibodies or oligonucleotides for detection of target biomolecules. Nanoparticles have been utilized in immunoassays, immunohistochemistry, DNA diagnostics, bioseparation of specific cell populations, and cellular imaging. Nanoparticle-based diagnostics may open new frontiers for detection of tumours, infectious diseases, bio-terrorism agents, and neurological diseases, to name a few. More work is necessary to fully optimize use of nanoparticles for clinical diagnosis and to resolve some concerns regarding potential health and environmental risks related to their use. However, we envision further developments of nanoparticle-based diagnostics will yield unique assays with enhanced sensitivity and multiplexing capability for the modern clinical laboratory.
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Affiliation(s)
- Hassan M E Azzazy
- Department of Chemistry and Yousef Jameel Science and Technology Research Centre, The American University in Cairo, Cairo 11511, Egypt.
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30
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Qin W, Ho L, Wang J, Peskind E, Pasinetti GM. S100A7, a novel Alzheimer's disease biomarker with non-amyloidogenic alpha-secretase activity acts via selective promotion of ADAM-10. PLoS One 2009; 4:e4183. [PMID: 19159013 PMCID: PMC2613557 DOI: 10.1371/journal.pone.0004183] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2008] [Accepted: 12/03/2008] [Indexed: 11/28/2022] Open
Abstract
Alzheimer's disease (AD) is the most common cause of dementia among older people. At present, there is no cure for the disease and as of now there are no early diagnostic tests for AD. There is an urgency to develop a novel promising biomarker for early diagnosis of AD. Using surface-enhanced laser desorption ionization-mass spectrometry SELDI-(MS) proteomic technology, we identified and purified a novel 11.7-kDa metal- binding protein biomarker whose content is increased in the cerebrospinal fluid (CSF) and in the brain of AD dementia subjects as a function of clinical dementia. Following purification and protein-sequence analysis, we identified and classified this biomarker as S100A7, a protein known to be involved in immune responses. Using an adenoviral-S100A7 expression system, we continued to examine the potential role of S100A7 in AD amyloid neuropathology in in vitro model of AD. We found that the expression of exogenous S100A7 in primary cortico-hippocampal neuron cultures derived from Tg2576 transgenic embryos inhibits the generation of β-amyloid (Aβ)1–42 and Aβ1–40 peptides, coincidental with a selective promotion of “non- amyloidogenic” α-secretase activity via promotion of ADAM (a disintegrin and metalloproteinase)-10. Finally, a selective expression of human S100A7 in the brain of transgenic mice results in significant promotion of α-secretase activity. Our study for the first time suggests that S100A7 may be a novel biomarker of AD dementia and supports the hypothesis that promotion of S100A7 expression in the brain may selectively promote α-secretase activity in the brain of AD precluding the generation of amyloidogenic peptides. If in the future we find that S1000A7 protein content in CSF is sensitive to drug intervention experimentally and eventually in the clinical setting, S100A7 might be developed as novel surrogate index (biomarker) of therapeutic efficacy in the characterization of novel drug agents for the treatment of AD.
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Affiliation(s)
- Weiping Qin
- Department of Psychiatry, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Lap Ho
- Department of Psychiatry, Mount Sinai School of Medicine, New York, New York, United States of America
- Geriatric Research and Clinical Center (GCRC), James J. Peters Veteran Affairs Medical Center, Bronx, New York, United States of America
| | - Jun Wang
- Department of Psychiatry, Mount Sinai School of Medicine, New York, New York, United States of America
- Geriatric Research and Clinical Center (GCRC), James J. Peters Veteran Affairs Medical Center, Bronx, New York, United States of America
| | - Elaine Peskind
- University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Giulio Maria Pasinetti
- Department of Psychiatry, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Neuroscience, Mount Sinai School of Medicine, New York, New York, United States of America
- Geriatric Research and Clinical Center (GCRC), James J. Peters Veteran Affairs Medical Center, Bronx, New York, United States of America
- * E-mail:
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31
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Yang J, Eom K, Lim EK, Park J, Kang Y, Yoon DS, Na S, Koh EK, Suh JS, Huh YM, Kwon TY, Haam S. In situ detection of live cancer cells by using bioprobes based on Au nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:12112-12115. [PMID: 18826263 DOI: 10.1021/la802184m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We fabricate the high-performance probes based on Au nanoparticles (AuNP) for detection of live cancer cell. AuNP were synthesized with narrow sized distribution (ca. 10 nm) by Au salt reduction method and deposited onto the aminated substrate as a cross-linker and hot spot. Herein, AuNP has enabled the easy and efficient immobilization of the antibody (Cetuximab), which can selectively interact with epidermal growth factor receptor (EGFR) on the surface of epidermal cancer, as detecting moiety onto the AuNP-deposited substrate without nanolithography process. After conjugation of Cetuximab with AuNP-deposited substrate, Cetuximab-conjugated probe as a live cancer cell detector (LCCD) could detect EGFR-highexpressed A431 cells related to epithelial cancer with 54-times larger specificity and sensitivity in comparison with EGFR-deficient MCF7 cells. This implies that AuNP-based probes demonstrate abundant potentials for detection and separation of small biomolecules, cells and other chemicals.
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Affiliation(s)
- Jaemoon Yang
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea
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32
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Abstract
The application of protein biomarkers as an aid for the detection and treatment of diseases has been subject to intensified interest in recent years. The quantitative assaying of protein biomarkers in easily obtainable biological fluids such as serum and urine offers the opportunity to improve patient care via earlier and more accurate diagnoses in a convenient, non-invasive manner as well as providing a potential route towards more individually targeted treatment. Essential to achieving progress in biomarker technology is the ability to screen large numbers of proteins simultaneously in a single experiment with high sensitivity and selectivity. In this article, we highlight recent progress in the use of microarrays for high-throughput biomarker profiling and discuss some of the challenges associated with these efforts.
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Affiliation(s)
- Hye Jin Lee
- Department of Chemistry, Kyungpook National University, Daegu 702-701, South Korea.
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Viola KL, Velasco PT, Klein WL. Why Alzheimer's is a disease of memory: the attack on synapses by A beta oligomers (ADDLs). J Nutr Health Aging 2008; 12:51S-7S. [PMID: 18165846 DOI: 10.1007/bf02982587] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Individuals with early-stage Alzheimer's disease (AD) suffer from profound failure to form new memories. A novel molecular mechanism with implications for therapeutics and diagnostics is now emerging in which the specificity of AD for memory derives from disruption of plasticity at synapses targeted by neurologically active A beta oligomers (1). We have named these oligomers "ADDLs" (for pathogenic A beta-Derived Diffusible Ligands). ADDLs constitute metastable alternatives to the disease-defining A beta fibrils deposited in amyloid plaques. In AD brain, ADDLs accumulate primarily as A beta 12mers (2) (approximately 54 kDa) and can be found in dot-like clusters distinct from senile plaques (3). Oligomers of equal mass have been reported to occur in tgmouse AD models where they emerge concomitantly with memory failure (4), consistent with ADDL inhibition of LTP (1). In cell biology studies, ADDLs act as pathogenic gain-of-function ligands that target particular synapses, binding to synaptic spines at or near NMDA receptors (5,6). Binding produces ectopic expression of the memory-linked immediate early gene Arc. Subsequent ADDL-induced abnormalities in spine morphology and synaptic receptor composition (7) are predicted consequences of Arc overexpression, a pathology associated with memory dysfunction in tg-Arc mice. Significantly, the attack on synapses provides a plausible mechanism unifying memory dysfunction with major features of AD neuropathology; recent findings show that ADDL binding instigates synapse loss, oxidative damage, and AD-type tau hyperphosphorylation. Acting as novel neurotoxins that putatively account for memory loss and neuropathology, ADDLs present significant targets for disease-modifying therapeutics in AD.
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Affiliation(s)
- K L Viola
- Department of Neurobiology and Physiology, Cognitive Neurology and Alzheimer's Disease Center, Northwestern University, Evanston, IL 60208, USA
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34
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Brewer M, Zhang T, Dong W, Rutherford M, Tian ZR. Future approaches of nanomedicine in clinical science. Med Clin North Am 2007; 91:963-1016. [PMID: 17826113 DOI: 10.1016/j.mcna.2007.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Burgeoning applications of nanotechnology are altering practices in traditional medicine. Promoted by the National Institutes of Health, nanomedicinal research is advancing technologies and revolutionizing strategies in clinical science by providing easy access to innovative nanodevices and nanosystems based on the rational design and precise integration of functional nanomaterials. Many long-standing challenges in clinical science could be met through advancement and revolutionization. Nanomedicinal diagnostics could acquire critical information regarding the status of diseased tissues and organs quickly and inexpensively with minimal sampling size and invasion. New strategies in therapeutic and regenerative nanomedicines will enable clinicians to take actions in a timely fashion and patient-friendly manner.
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Affiliation(s)
- Mary Brewer
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA
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35
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Kawasaki ES, Player A. Nanotechnology, nanomedicine, and the development of new, effective therapies for cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2007; 1:101-9. [PMID: 17292064 DOI: 10.1016/j.nano.2005.03.002] [Citation(s) in RCA: 179] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2005] [Accepted: 03/25/2005] [Indexed: 12/20/2022]
Abstract
Cancer is the leading cause of death in the United States among people younger than 85 years, and for the first time has surpassed heart disease as the number one killer. This worrisome statistic has resulted not from an increase in the incidence of cancer, but because deaths from heart disease have dropped nearly in half while the number of cancer-related deaths has remained about the same. This fact accentuates the need for a new generation of more effective therapies for cancer. In this review, the development of new therapies will be discussed in the context of advances in nanotechnologies related to cancer detection, analysis, diagnosis, and therapeutic intervention. First, several nanoanalytical methods, such as the use of quantum dots in detection and imaging of cancer, will be described. These techniques will be essential to the process of precisely describing cancer at the level of the cell and whole organism. Second, examples of how nanotechnologies can be used in the development of new therapies will be given, including methods that might allow for more efficient and accurate drug delivery and rationally designed, targeted drugs. Finally, a new initiative--the National Cancer Institute Alliance for Nanotechnology in Cancer--will be described and discussed with respect to the scientific issues, policies, and funding.
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