51
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Wang D, Zhu L, Chen JF, Dai L. Can graphene quantum dots cause DNA damage in cells? NANOSCALE 2015; 7:9894-901. [PMID: 25967921 DOI: 10.1039/c5nr01734c] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Graphene quantum dots (GQDs) have attracted tremendous attention for biological applications. We report the first study on cytotoxicity and genotoxicity of GQDs to fibroblast cell lines (NIH-3T3 cells). The NIH-3T3 cells treated with GQDs at dosages over 50 μg mL(-1) showed no significant cytotoxicity. However, the GQD-treated NIH-3T3 cells exhibited an increased expression of proteins (p53, Rad 51, and OGG1) related to DNA damage compared with untreated cells, indicating the DNA damage caused by GQDs. The GQD-induced release of reactive oxygen species (ROS) was demonstrated to be responsible for the observed DNA damage. These findings should have important implications for future applications of GQDs in biological systems.
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Affiliation(s)
- Dan Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.
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52
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Zhou H, Liu J, Zhang S. Quantum dot-based photoelectric conversion for biosensing applications. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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53
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Kirschbaum SEK, Baeumner AJ. A review of electrochemiluminescence (ECL) in and for microfluidic analytical devices. Anal Bioanal Chem 2015; 407:3911-26. [DOI: 10.1007/s00216-015-8557-x] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 01/12/2015] [Accepted: 02/10/2015] [Indexed: 12/31/2022]
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54
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Sandwich-type electrochemical immunosensor using dumbbell-like nanoparticles for the determination of gastric cancer biomarker CA72-4. Talanta 2015; 134:305-309. [DOI: 10.1016/j.talanta.2014.11.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 10/31/2014] [Accepted: 11/13/2014] [Indexed: 11/18/2022]
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55
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Goryacheva IY, Speranskaya ES, Goftman VV, Tang D, De Saeger S. Synthesis and bioanalytical applications of nanostructures multiloaded with quantum dots. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.11.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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56
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Ultrasensitive electrochemical immunosensor for carbohydrate antigen 72-4 based on dual signal amplification strategy of nanoporous gold and polyaniline–Au asymmetric multicomponent nanoparticles. Biosens Bioelectron 2015; 64:51-6. [DOI: 10.1016/j.bios.2014.08.043] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/26/2014] [Accepted: 08/05/2014] [Indexed: 02/07/2023]
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57
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Kong Q, Li M, Ma C, Yang H, Ge S, Yan M, Yu J. Ultrasensitive electrochemiluminescence aptasensor based on a graphene/polyaniline composite film modified electrode and CdS quantum dot coated platinum nanostructured networks as labels. RSC Adv 2015. [DOI: 10.1039/c5ra12674f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple electrochemiluminescence (ECL) aptasensor for adenosine triphosphate (ATP) based on graphene/polyaniline (GR/PANI) composite films modified glassy carbon electrode (GCE) was successfully fabricated.
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Affiliation(s)
- Qingkun Kong
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Meng Li
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Chao Ma
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Hongmei Yang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Shenguang Ge
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Yan
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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58
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Zhang C, Lou J, Tu W, Bao J, Dai Z. Ultrasensitive electrochemical biosensing for DNA using quantum dots combined with restriction endonuclease. Analyst 2015; 140:506-11. [DOI: 10.1039/c4an01284d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A sensitive platform using endonuclease and AuNPs as well as environmental Bi film for the detection of DNA has been developed.
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Affiliation(s)
- Can Zhang
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Jing Lou
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Wenwen Tu
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Jianchun Bao
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Zhihui Dai
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing
- P. R. China
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59
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Akter R, Rhee CK, Rahman MA. A highly sensitive quartz crystal microbalance immunosensor based on magnetic bead-supported bienzymes catalyzed mass enhancement strategy. Biosens Bioelectron 2014; 66:539-46. [PMID: 25506902 DOI: 10.1016/j.bios.2014.12.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/18/2014] [Accepted: 12/01/2014] [Indexed: 01/05/2023]
Abstract
A highly sensitive quartz crystal microbalance (QCM) immunosensor based on magnetic bead-supported bienzyme catalyzed mass enhanced strategy was developed for the detection of human immunoglobulin G (hIgG) protein. The high sensitive detection was achieved by increasing the deposited mass on the QCM crystal through the enhanced precipitation of 4-chloro-1-naphthol (CN) using higher amounts of horseradish peroxidase (HRP) and glucose oxidase (GOx) bienzymes attached on the magnetic beads (MB). The protein A (PA) and capture antibody (monoclonal anti-human IgG antibody produced in mouse, Ab1)-based QCM probe and the detection antibody (anti-human IgG antibody produced in goat, Ab2)-based MB/HRP/GOx bienzymatic bioconjugates were characterized using scanning electron microscope, transmission electron microscope, cyclic voltammetry, and electrochemical impedance spectroscopy techniques. Under the optimized experimental condition, the linear range and the detection limit of hIgG immunosensor were determined to be 5.0pg/mL-20.0ng/mL and 5.0±0.18pg/mL, respectively. The applicability of the present hIgG immunosensor was examined in hIgG spiked human serum samples and excellent recoveries of hIgG were obtained.
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Affiliation(s)
- Rashida Akter
- Department of Chemistry, Chungnam National University, Daejeon 305-764, South Korea
| | - Choong Kyun Rhee
- Department of Chemistry, Chungnam National University, Daejeon 305-764, South Korea; Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 305-764, South Korea.
| | - Md Aminur Rahman
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 305-764, South Korea.
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60
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Wu P, Hou X, Xu JJ, Chen HY. Electrochemically Generated versus Photoexcited Luminescence from Semiconductor Nanomaterials: Bridging the Valley between Two Worlds. Chem Rev 2014; 114:11027-59. [DOI: 10.1021/cr400710z] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Peng Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, P.R. China
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61
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Qu Z, Xu H, Xu P, Chen K, Mu R, Fu J, Gu H. Ultrasensitive ELISA using enzyme-loaded nanospherical brushes as labels. Anal Chem 2014; 86:9367-71. [PMID: 25196700 DOI: 10.1021/ac502522b] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Improving the detection sensitivity of enzyme-linked immunosorbent assay (ELISA) is of utmost importance for meeting the demand of early disease diagnosis. Herein we report an ultrasensitive ELISA system using horseradish peroxidase (HRP)-loaded nanospherical poly(acrylic acid) brushes (SPAABs) as labels. HRP was covalently immobilized in SPAABs with high capacity and activity via an efficient "chemical conjugation after electrostatic entrapment" (CCEE) process, thus endowing SPAABs with high amplification capability as labels. The periphery of SPAAB-HRP was further utilized to bind a layer of antibody with high density for efficient capture of analytes owing to the three-dimensional architecture of SPAABs. Using human chorionic gonadotrophin (hCG) as a model analyte, the SPAAB-amplified system drastically boosted the detection limit of ELISA to 0.012 mIU mL(-1), a 267-fold improvement as compared to conventional ELISA systems.
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Affiliation(s)
- Zhenyuan Qu
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Shanghai Jiao Tong University , Shanghai 200030, P. R. China
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62
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Tian R, Qu Y, Zheng X. Amplified fluorescence quenching of lucigenin self-assembled inside silica/chitosan nanoparticles by Cl⁻. Anal Chem 2014; 86:9114-21. [PMID: 25135186 DOI: 10.1021/ac5018502] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Fluorescence sensing of an analyte based on the fluorophore collective effect is a reliable, sensitive sensing approach. Many ultralow targets can be detected on the basis of the high sensitivity and signal amplification of the fluorescence sensing system. However, the complicated synthesis procedures, harsh conditions required to design and control the fluorescence molecular probes and conjugated chain length, and the higher cost of synthesis are still challenges. To address these issues, we developed a simple, rapid, and sensitive collective effect based fluorescence sensing platform. In this sensing platform, the fluorophore unit was self-assembled on the wall of the nanopores of the porous structural silica/chitosan nanoparticles (SCNPs) on the basis of the electrostatic interaction and supermolecular interaction between the fluorophores and SiO(-) groups and chitosan. Since these self-assembled fluorophores are close enough to communicate with each other on the basis of the space confinement effect of the pore size, many fluorophore units could interact with a single analyte and produce an amplified fluorescence sensing ability. Chloride ion, an important anion in biological fluids, and lucigenin, a typical fluorescent dye, were used as a model to confirm the proof-of-concept strategy. Our results showed that, compared to free-state lucigenin in solution, the assembled-state lucigenin in SCNPs presented an about 10-fold increase in its Stern-Volmer constant when the concentration of Cl(-) was lower than 10 mM, and this fluorescence nanosensor was also successfully used to sense the chloride ion in living cells.
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Affiliation(s)
- Rui Tian
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal University , Xi'an, 710062 Shaanxi, People's Republic of China
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63
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Bareket-Keren L, Hanein Y. Novel interfaces for light directed neuronal stimulation: advances and challenges. Int J Nanomedicine 2014; 9 Suppl 1:65-83. [PMID: 24872704 PMCID: PMC4024977 DOI: 10.2147/ijn.s51193] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Light activation of neurons is a growing field with applications ranging from basic investigation of neuronal systems to the development of new therapeutic methods such as artificial retina. Many recent studies currently explore novel methods for optical stimulation with temporal and spatial precision. Novel materials in particular provide an opportunity to enhance contemporary approaches. Here we review recent advances towards light directed interfaces for neuronal stimulation, focusing on state-of-the-art nanoengineered devices. In particular, we highlight challenges and prospects towards improved retinal prostheses.
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Affiliation(s)
- Lilach Bareket-Keren
- School of Electrical Engineering, Tel-Aviv University, Tel-Aviv University, Tel-Aviv, Israel ; Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Yael Hanein
- School of Electrical Engineering, Tel-Aviv University, Tel-Aviv University, Tel-Aviv, Israel ; Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv, Israel
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64
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Yang H, Wei W, Liu S. Monodispersed silica nanoparticles as carrier for co-immobilization of bi-enzyme and its application for glucose biosensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:183-188. [PMID: 24548811 DOI: 10.1016/j.saa.2014.01.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/13/2013] [Accepted: 01/03/2014] [Indexed: 06/03/2023]
Abstract
A novel glucose sensing strategy by using bi-enzyme coated monodispered silica nanoparticles (SiO2) was proposed. The monodispered SiO2 was synthesized according to our previously reported seed-growth methods. Glucose oxidase (GOD) and horseradish peroxidase (HRP) were simultaneously covalent immobilized on the surface of SiO2 nanoparticles through the cross-linker of glutaraldehyde. The immobilized bi-enzyme remained their bioactivities well for the substrate reaction. Thus, the resultant SiO2-GOD/HRP nanocomposites could be used as catalyst for enzymatic substrate reactions in the presence of 3,3',5,5'-tetramethylbenzidine (TMB) as chromogenic reagent and glucose as substrate. The factors of affecting the catalytic activities of enzymes were optimized. Under optimal conditions, the absorbance at 450 nm in UV-visible spectra increased with the glucose concentration, which could be used for glucose detection with a linear range from 0.5 μM to 250 μM and a detection limit of 0.22 μM at a signal-to-noise ratio of 3σ. Considering the potential of making pills using this SiO2-GOD/HRP, the present strategy has good prospect in the clinic science and other fields in future.
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Affiliation(s)
- Hao Yang
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Wei Wei
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Songqin Liu
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
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65
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Liu S, Zhang X, Yu Y, Zou G. Bandgap engineered and high monochromatic electrochemiluminescence from dual-stabilizers-capped CdSe nanocrystals with practical application potential. Biosens Bioelectron 2014; 55:203-8. [DOI: 10.1016/j.bios.2013.11.078] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 11/18/2013] [Accepted: 11/28/2013] [Indexed: 12/31/2022]
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66
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Modulation of the matrix effect of nafion on tris(bipyridine) ruthenium(II) electrochemical probes by functionalisation with 4-nitrophenylazo graphene-gold nanocomposite. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.143] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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67
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Zhang S, Ma H, Yan L, Cao W, Yan T, Wei Q, Du B. Copper-doped titanium dioxide nanoparticles as dual-functional labels for fabrication of electrochemical immunosensors. Biosens Bioelectron 2014; 59:335-41. [PMID: 24747572 DOI: 10.1016/j.bios.2014.03.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/19/2014] [Accepted: 03/27/2014] [Indexed: 02/06/2023]
Abstract
Constructions of versatile electroactive labels are key issues in the development of electrochemical immunosensors. In this study, copper-doped titanium dioxide nanoparticle (Cu@TiO2) was synthesized and used as labels for fabrication of sandwich-type electrochemical immunosensors on glassy carbon electrode (GCE). Due to the presence of copper ions, Cu@TiO2 shows a strong response current when coupled to an electrode. The prepared nanocomposite also shows high electrocatalytic activity towards reduction of hydrogen peroxide (H2O2). The dual functionality of Cu@TiO2 enables the fabrication of immunosensor using different detection modes, that is, square wave voltammetry (SWV) or chronoamperometry (CA). While Cu@TiO2 was used as labels of secondary antibodies (Ab2), carboxyl functionalized graphene oxide (CFGO) was used as electrode materials to immobilize primary antibodies (Ab1). Using human immunoglobulin G (IgG) as a model analyte, the immunosensor shows high sensitivity, acceptable stability and good reproducibility for both detection modes. Under optimal conditions, a linear range from 0.1 pg/mL to 100 ng/mL with a detection limit of 0.052 pg/mL was obtained for SWV analysis. For CA analysis, a wider linear range from 0.01 pg/mL to 100 ng/mL and a lower detection limit of 0.0043 pg/mL were obtained. The proposed metal ion-based enzyme-free and noble metal-free immunosensor may have promising applications in clinical diagnoses and many other fields.
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Affiliation(s)
- Sen Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Liangguo Yan
- School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Wei Cao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Tao Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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68
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Li J, Qi H, Wang H, Yang Z, Zhu P, Diao G. Fluorescence energy transfer-based multiplexed hybridization assay using gold nanoparticles and quantum dot conjugates on photonic crystal beads. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1217-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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69
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Application of ZnO quantum dots dotted carbon nanotube for sensitive electrochemiluminescence immunoassay based on simply electrochemical reduced Pt/Au alloy and a disposable device. Anal Chim Acta 2014; 818:46-53. [DOI: 10.1016/j.aca.2014.01.047] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 12/17/2013] [Accepted: 01/22/2014] [Indexed: 12/11/2022]
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70
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Liu S, Zhang X, Yu Y, Zou G. A Monochromatic Electrochemiluminescence Sensing Strategy for Dopamine with Dual-Stabilizers-Capped CdSe Quantum Dots as Emitters. Anal Chem 2014; 86:2784-8. [DOI: 10.1021/ac500046s] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shufeng Liu
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xin Zhang
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yanmin Yu
- Department
of Chemistry and Chemical Engineering, College of Environmental and
Energy Engineering, Beijing University of Technology, Beijing 100124, China
| | - Guizheng Zou
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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71
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Zhang P, Lu H, Chen J, Han H, Ma W. Simple and sensitive detection of HBsAg by using a quantum dots nanobeads based dot-blot immunoassay. Am J Cancer Res 2014; 4:307-15. [PMID: 24505238 PMCID: PMC3915093 DOI: 10.7150/thno.8007] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/24/2013] [Indexed: 01/22/2023] Open
Abstract
Simple and sensitive detection of infectious disease at an affordable cost is urgently needed in developing nations. In this regard, the dot blot immunoassay has been used as a common protein detection method for detection of disease markers. However, the traditional signal reporting systems, such as those using enzymes or gold nanoparticles lack sensitivity and thus restrict the application of these methods for disease detection. In this study, we report a simple and sensitive detection method for the detection of infectious disease markers that couples the dot-blot immunoassay with quantum dots nanobeads (QDNBs) as a reporter. First, the QDNBs were prepared by an oil-in-water emulsion-evaporation technique. Because of the encapsulation of several QDs in one particle, the fluorescent signal of reporter can be amplified with QDNBs in a one-step test and be read using a UV lamp obviating the need for complicated instruments. Detection of disease-associated markers in complex mixture is possible, which demonstrates the potential of developing QDNBs into a sensitive diagnostic kit.
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72
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Lu Q, Wei W, Zhou Z, Zhou Z, Zhang Y, Liu S. Electrochemiluminescence resonance energy transfer between graphene quantum dots and gold nanoparticles for DNA damage detection. Analyst 2014; 139:2404-10. [DOI: 10.1039/c4an00020j] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemiluminescence resonance energy transfer between graphene quantum dots (GQDs) and Au nanoparticles results in the electrochemiluminescence signal of the GQDs being quenched or recovering.
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Affiliation(s)
- Qian Lu
- Key Laboratory of Environmental Medicine Engineering
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R China
| | - Wei Wei
- Key Laboratory of Environmental Medicine Engineering
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R China
| | - Zhenxian Zhou
- Second Hospital of Nanjing
- 210 014 Nanjing, P.R China
| | - Zhixin Zhou
- Key Laboratory of Environmental Medicine Engineering
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R China
| | - Yuanjian Zhang
- Key Laboratory of Environmental Medicine Engineering
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R China
| | - Songqin Liu
- Key Laboratory of Environmental Medicine Engineering
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing, P.R China
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73
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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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74
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Muzyka K. Current trends in the development of the electrochemiluminescent immunosensors. Biosens Bioelectron 2013; 54:393-407. [PMID: 24292145 DOI: 10.1016/j.bios.2013.11.011] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 10/05/2013] [Accepted: 11/01/2013] [Indexed: 11/26/2022]
Abstract
This review presents a general picture of the current trends and developments (2008-2013) related to electrochemiluminescence-based immunosensors. It briefly covers the milestones of qualitative changes in the field of electrochemiluminescent immunosensors; the peculiarities of the electrochemiluminescent immunoassay formats; the basic mechanisms of ECL detection, main features of early and ongoing approaches in electrochemiluminescent immunoassay commercial instruments, and the recent developments in fabrication of solid-state electrochemiluminescent immunosensors. Moreover, systematized data on biomarkers, immunoassay formats, and novel types of electrochemiluminescent label and immobilization support, such as semiconductor nanocrystals, porous noble metals, graphene, TiO2 nanotube arrays, metal-organic composites, multiwall carbon nanotubes, liposomes, photolummonescent carbone nanocrystals are presented as a table. Considerable efforts have also been devoted towards the following two key points: multiplexing analysis (multi-label, and the multianalyte strategies) and integration in microfluidic lab-on-paper devices with capabilities for point-to-care diagnostics. An immuno-like electrochemiluminescent sensor (based on synthetic receptors-molecularly imprinted polymers), as a new alternative to traditional electrochemiluminescent immunoassay is highlighted. Future perspectives and possible challenges in this rapidly developing area are also discussed.
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Affiliation(s)
- Kateryna Muzyka
- Kharkiv National University of RadioElectronics, Lenin Avenue 14, Kharkiv 61166, Ukraine.
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75
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Zhang H, Yang L, Zhou B, Wang X, Liu G, Liu W, Wang P. Investigation of biological cell-protein interactions using SPR sensor through laser scanning confocal imaging-surface plasmon resonance system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:381-386. [PMID: 24280300 DOI: 10.1016/j.saa.2013.10.100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 10/22/2013] [Accepted: 10/31/2013] [Indexed: 06/02/2023]
Abstract
A new method for investigating biological cell-protein interactions was developed by using a laser scanning confocal imaging-surface plasmon resonance (LSCI-SPR) system. Mouse normal IgG was modified on the SPR chip. The suspension mouse lymphocyte cancer cells (L5178Y cells) labeled by Hoechst33342 freely flowed into the surface of the SPR sensor chip. By changing the concentration of the cells, the fluorescence images and the SPR signal were synchronously recorded in real time. The red fluorescence points in the imaging region increased with increase in the concentration of the mouse lymphocyte cancer cells and fit well with the change in the SPR signal. Different suspending cells were chosen to investigate cell-protein interactions through antigen-antibody reactions on the biological cell surfaces through binding detection. This method has potential application in cell biology and pharmacology.
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Affiliation(s)
- Hongyan Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Liquan Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Bingjiang Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xueliang Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guiying Liu
- Department of Pediatrics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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76
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Tefashe UM, Metera KL, Sleiman HF, Mauzeroll J. Electrogenerated chemiluminescence of iridium-containing ROMP block copolymer and self-assembled micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12866-12873. [PMID: 24047129 DOI: 10.1021/la402518v] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The electrochemical properties and electrogenerated chemiluminescence (ECL) of an Ir(ppy)2(bpy)(+)-containing ROMP monomer, block copolymer (containing Ir(ppy)2(bpy)(+) complexes, PEG chains, and butyl moieties), and self-assembled micelles were investigated. Following polymerization of the iridium complex, we observed multiple oxidation peaks for the block copolymer in cyclic voltammograms (CV) and differential pulse voltammograms (DPV), suggesting the presence of multiple environments for the iridium complexes along the polymer backbone. The ECL signals from monomer 1 and polymer 2 were reproducible over continuous CV cycles and stable over prolonged potential biases, demonstrating their robustness toward ECL-based detection. Comparison of the ECL signal of the block copolymer, containing multiple iridium complexes attached to the backbone, and the monomeric complex showed enhanced signals for the polymer. In fact, formation and reopening of the self-assembled micelles allowed recovery of the polymer and near complete retention of its original ECL intensity.
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Affiliation(s)
- Ushula M Tefashe
- Laboratory for Electrochemical Reactive Imaging and Detection of Biological Systems, Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal, QC, Canada H3A 0B8
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77
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Zhou H, Chen S, Gan N, Li T, Cao Y, Jiang Q. Design of Sensitive Biocompatible Quantum-Dots Embedded in Mesoporous Silica Microspheres for the Quantitative Immunoassay of Human Immunodeficiency Virus-1 Antibodies. ELECTROANAL 2013. [DOI: 10.1002/elan.201300307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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78
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Lai G, Zhang H, Yong J, Yu A. In situ deposition of gold nanoparticles on polydopamine functionalized silica nanosphere for ultrasensitive nonenzymatic electrochemical immunoassay. Biosens Bioelectron 2013; 47:178-83. [DOI: 10.1016/j.bios.2013.03.029] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/09/2013] [Accepted: 03/11/2013] [Indexed: 11/15/2022]
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79
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Mauline L, Gressier M, Roques C, Hammer P, Ribeiro SJL, Caiut JMA, Menu MJ. Bifunctional silica nanoparticles for the exploration of biofilms of Pseudomonas aeruginosa. BIOFOULING 2013; 29:775-788. [PMID: 23805884 DOI: 10.1080/08927014.2013.798866] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Luminescent silica nanoparticles are frequently employed for biotechnology applications mainly because of their easy functionalization, photo-stability, and biocompatibility. Bifunctional silica nanoparticles (BSNPs) are described here as new efficient tools for investigating complex biological systems such as biofilms. Photoluminescence is brought about by the incorporation of a silylated ruthenium(II) complex. The surface properties of the silica particles were designed by reaction with amino-organosilanes, quaternary ammonium-organosilanes, carboxylate-organosilanes and hexamethyldisilazane. BSNPs were characterized extensively by DRIFT, (13)C and (29)Si solid state NMR, XPS, and photoluminescence. Zeta potential and contact angle measurements exhibited various surface properties (hydrophilic/hydrophobic balance and electric charge) according to the functional groups. Confocal laser scanning microscopy (CLSM) measurements showed that the spatial distribution of these nanoparticles inside a biofilm of Pseudomonas aeruginosa PAO1 depends more on their hydrophilic/hydrophobic characteristics than on their size. CLSM observations using two nanosized particles (25 and 68 nm) suggest that narrow diffusion paths exist through the extracellular polymeric substances matrix.
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Affiliation(s)
- L Mauline
- Centre Interuniversitaire de Recherche et de l'Ingénierie des Matériaux, UMR-CNRS 5085, Université Paul Sabatier, Toulouse cedex 9, France
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80
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An ultrasensitive electrochemiluminescence immunoassay for carbohydrate antigen 19-9 in serum based on antibody labeled Fe3O4 nanoparticles as capture probes and graphene/CdTe quantum dot bionanoconjugates as signal amplifiers. Int J Mol Sci 2013; 14:10397-411. [PMID: 23685872 PMCID: PMC3676846 DOI: 10.3390/ijms140510397] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 11/25/2022] Open
Abstract
The CdTe quantum dots (QDs), graphene nanocomposite (CdTe-G) and dextran–Fe3O4 magnetic nanoparticles have been synthesized for developing an ultrasensitive electrochemiluminescence (ECL) immunoassay for Carcinoembryonic antigen 19-9 (CA 19-9) in serums. Firstly, the capture probes (CA 19-9 Ab1/Fe3O4) for enriching CA 19-9 were synthesized by immobilizing the CA 19-9’s first antibody (CA 19-9 Ab1) on magnetic nanoparticles (dextran-Fe3O4). Secondly, the signal probes (CA 19-9 Ab2/CdTe-G), which can emit an ECL signal, were formed by attaching the secondary CA 19-9 antibody (CA 19-9 Ab2) to the surface of the CdTe-G. Thirdly, the above two probes were used for conjugating with a serial of CA 19-9 concentrations. Graphene can immobilize dozens of CdTe QDs on their surface, which can emit stronger ECL intensity than CdTe QDs. Based on the amplified signal, ultrasensitive antigen detection can be realized. Under the optimal conditions, the ECL signal depended linearly on the logarithm of CA 19-9 concentration from 0.005 to 100 pg/mL, and the detection limit was 0.002 pg/mL. Finally, five samples of human serum were tested, and the results were compared with a time-resolved fluorescence assay (TRFA). The novel immunoassay provides a stable, specific and highly sensitive immunoassay protocol for tumor marker detection at very low levels, which can be applied in early diagnosis of tumor.
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81
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Liu W, Zhang Y, Ge S, Song X, Yu J, Huang J, Yan M. Sandwich-type electrochemiluminescence immunosensor based on poly(acrylic acid) coated Fe3O4 composite for human chorionic gonadotrophin detection using quantum dots functionalized CNTs as labels. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-0984-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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82
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Ge S, Ge L, Yan M, Song X, Yu J, Liu S. A disposable immunosensor device for point-of-care test of tumor marker based on copper-mediated amplification. Biosens Bioelectron 2013; 43:425-31. [DOI: 10.1016/j.bios.2012.12.047] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 12/06/2012] [Accepted: 12/20/2012] [Indexed: 12/19/2022]
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83
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Magnetic nanoparticle-based electrochemiluminescent immunosensor for detection of carcinoembryonic antigen based on silica nanosphere@gold nanoparticles-Ru as labels. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-0983-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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84
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Gao ZD, Zhuang QL, Song YY, Lee K, Schmuki P. Signal Amplification Strategy Based on TiO2-Nanotube Layers and Nanobeads Carrying Quantum Dots for Electrochemiluminescent Immunosensors. ChemistryOpen 2013; 2:93-8. [PMID: 24551545 PMCID: PMC3703813 DOI: 10.1002/open.201300003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Indexed: 11/08/2022] Open
Abstract
Self-organized TiO2-nanotube layers can be used for immunoassay-type sensing in combination with amplifying CdTe labels in a direct and very sensitive electrochemiluminescent (ECL) configuration. Key properties for this method are the conductivity of the TiO2 nanotubes, and their transparency for light emitted from the CdTe labels at approximately 2.4 eV. To demonstrate the potential of this platform, we constructed a sandwich-type immunoassay onto the TiO2-nanotube wall with a layer of (3-aminopropyl)triethoxysilane as the cross-linker for antibody immobilization. For the counter part of the sandwich, we created an amplification system consisting of TiO2 nanobeads carrying the secondary antibody and multiple CdTe quantum dots (multiQD). For antigen (IgG) detection, we find that this combination of 3D transparent electrode with multiQD labels allows for an ECL detection limit of 0.05 pg mL(-1) and a linearity of the signal in the range of 0.1-10(8) pg mL(-1).
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Affiliation(s)
- Zhi-Da Gao
- College of Sciences, Northeastern University Shenyang 110004 (P. R. China) E-mail:
| | - Qian-Lan Zhuang
- College of Sciences, Northeastern University Shenyang 110004 (P. R. China) E-mail:
| | - Yan-Yan Song
- College of Sciences, Northeastern University Shenyang 110004 (P. R. China) E-mail:
| | - Kiyoung Lee
- Department of Materials Science and Engineering, WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7, 91058 Erlangen (Germany) E-mail:
| | - Patrik Schmuki
- Department of Materials Science and Engineering, WW4-LKO, University of Erlangen-Nuremberg Martensstrasse 7, 91058 Erlangen (Germany) E-mail:
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85
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Liu W, Zhang Y, Ge S, Song X, Huang J, Yan M, Yu J. Core–shell Fe3O4–Au magnetic nanoparticles based nonenzymatic ultrasensitive electrochemiluminescence immunosensor using quantum dots functionalized graphene sheet as labels. Anal Chim Acta 2013; 770:132-9. [DOI: 10.1016/j.aca.2013.01.039] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Revised: 12/18/2012] [Accepted: 01/17/2013] [Indexed: 01/19/2023]
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86
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Electrochemiluminescence of blue-luminescent graphene quantum dots and its application in ultrasensitive aptasensor for adenosine triphosphate detection. Biosens Bioelectron 2013; 47:271-7. [PMID: 23587790 DOI: 10.1016/j.bios.2013.03.039] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 03/18/2013] [Accepted: 03/18/2013] [Indexed: 01/13/2023]
Abstract
A simple approach based on exfoliating and disintegrating treatments for graphite oxide, followed by hydrothermal synthesis, was developed to prepare water-soluble graphene quantum dots (GQDs). The as-prepared GQDs exhibited bright blue emission under ultraviolet irradiation (∼365nm), and showed an excitation-independent photoluminescence feature. More importantly, a newly anodic electrochemiluminescence (ECL) was observed from the water-soluble GQDs with H2O2 as coreactant for the first time, and the ECL induced a strong light emission at a low potential (ca. 0.4V vs. Ag/AgCl). The ECL mechanism is investigated in detail. Employing SiO2 nanospheres as signal carrier, a novel SiO2/GQDs ECL signal amplification labels were synthesized based on which a ultrasensitive ECL aptamer sensor was proposed. Under the optimized experimental conditions, the proposed ECL aptamer sensor exhibited excellent analytical performance for adenosine triphosphate (ATP) determination, ranging from 5.0×10(-12) to 5.0×10(-9)molL(-1) with the detection limit of 1.5×10(-12)molL(-1). Due to the low cytotoxicity and excellent biocompatibility, GQDs are demonstrated to be an eco-friendly material as well as excellent ECL labeling agents for biosensor.
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87
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Ultrasensitive electrochemiluminescent immunosensor based on dual signal amplification strategy of gold nanoparticles-dotted graphene composites and CdTe quantum dots coated silica nanoparticles. Anal Bioanal Chem 2013; 405:4921-9. [DOI: 10.1007/s00216-013-6885-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 02/23/2013] [Accepted: 02/27/2013] [Indexed: 12/16/2022]
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88
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Lisdat F, Schäfer D, Kapp A. Quantum dots on electrodes—new tools for bioelectroanalysis. Anal Bioanal Chem 2013; 405:3739-52. [DOI: 10.1007/s00216-013-6789-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 01/23/2013] [Accepted: 01/24/2013] [Indexed: 12/18/2022]
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89
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A high-throughput homogeneous immunoassay based on Förster resonance energy transfer between quantum dots and gold nanoparticles. Anal Chim Acta 2013; 763:43-9. [DOI: 10.1016/j.aca.2012.12.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 11/19/2012] [Accepted: 12/04/2012] [Indexed: 11/21/2022]
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90
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Liu F, Liu H, Zhang M, Yu J, Wang S, Lu J. Ultrasensitive electrochemiluminescence detection of lengthy DNA molecules based on dual signal amplification. Analyst 2013; 138:3463-9. [DOI: 10.1039/c3an00452j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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91
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Niu H, Yuan R, Chai Y, Mao L, Liu H, Cao Y. Highly amplified electrochemiluminescence of peroxydisulfate using bienzyme functionalized palladium nanoparticles as labels for ultrasensitive immunoassay. Biosens Bioelectron 2013; 39:296-9. [DOI: 10.1016/j.bios.2012.06.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 06/04/2012] [Indexed: 11/29/2022]
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92
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Tang D, Cui Y, Chen G. Nanoparticle-based immunoassays in the biomedical field. Analyst 2013; 138:981-90. [DOI: 10.1039/c2an36500f] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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93
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Wang L, Ma S, Wang X, Liu D, Liu S, Han X. Electrochemiluminescent TiO2/CdS nanocomposites for efficient immunosensing of HepG2 cells. J Mater Chem B 2013; 1:5021-5027. [DOI: 10.1039/c3tb20868k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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94
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Deng S, Ju H. Electrogenerated chemiluminescence of nanomaterials for bioanalysis. Analyst 2013; 138:43-61. [DOI: 10.1039/c2an36122a] [Citation(s) in RCA: 172] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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95
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Jiang F, Zhang JJ, Zhang JR, Zhu JJ. Ultrasensitive immunoassay based on dual signal amplification of the electrically heated carbon electrode and quantum dots functionalized labels for the detection of matrix metalloproteinase-9. Analyst 2013; 138:1962-5. [DOI: 10.1039/c3an00006k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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96
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Zhang J, Liu S, Bao J, Tu W, Dai Z. Dual signal amplification of zinc oxide nanoparticles and quantum dots-functionalized zinc oxide nanoparticles for highly sensitive electrochemiluminescence immunosensing. Analyst 2013; 138:5396-403. [DOI: 10.1039/c3an00705g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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97
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Yuan L, Xu L, Liu S. Integrated tyramide and polymerization-assisted signal amplification for a highly-sensitive immunoassay. Anal Chem 2012. [PMID: 23181414 DOI: 10.1021/ac302439v] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel strategy for ultrasensitive detection of model protein based on the integration of tyramide signal amplification (TSA) and polymerization-assisted signal amplification was proposed. The surface-initiated atom transfer radical polymerization (SI-ATRP) of glycidyl methacrylate (GMA) was triggered by the initiator-coupled protein immobilized on the electrode surface through sandwiched immunoreactions. Growth of long chain polymeric materials provided numerous epoxy groups for subsequent coupling of horseradish peroxidase (HRP), which in turn significantly increased the loading of quantum dots (QDs) labeled tyramide in the presence of hydrogen peroxide. As a result, electrochemiluminescence (ECL) and square-wave voltammetric (SWV) measurements showed 9.4- and 10.5-fold increase in detection signal in comparison with the unamplified method, respectively. To demonstrate the feasibility of this approach, human immunoglobulin G antigen (IgG) as a model target protein was employed and the detection limits were 0.73 and 0.09 pg mL(-1) for ECL and SWV, respectively. The results showed that sensitivity of the presented immunoassay significantly increased by one-order of magnitude and offered great application promises in providing a sensitive, specific, and potent method for biological detection.
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Affiliation(s)
- Liang Yuan
- State Key Laboratory of Bioelectronics, School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, 211189, P.R. China
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98
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Liang G, Liu S, Zou G, Zhang X. Ultrasensitive Immunoassay Based on Anodic Near-Infrared Electrochemiluminescence from Dual-Stabilizer-Capped CdTe Nanocrystals. Anal Chem 2012; 84:10645-9. [DOI: 10.1021/ac302236a] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Guodong Liang
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan,
250100, China
| | - Shufeng Liu
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan,
250100, China
| | - Guizheng Zou
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan,
250100, China
| | - Xiaoli Zhang
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan,
250100, China
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99
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Pei X, Zhang B, Tang J, Liu B, Lai W, Tang D. Sandwich-type immunosensors and immunoassays exploiting nanostructure labels: A review. Anal Chim Acta 2012; 758:1-18. [PMID: 23245891 DOI: 10.1016/j.aca.2012.10.060] [Citation(s) in RCA: 295] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 10/25/2012] [Accepted: 10/30/2012] [Indexed: 12/17/2022]
Abstract
Methods based on sandwich-type immunosensors and immunoassays have been developed for detection of multivalent antigens/analytes with more than one eptiope due to the use of two matched antibodies. High-affinity antibodies and appropriate labels are usually employed for the amplification of detectable signal. Recent research has looked to develop innovative and powerful novel nanoparticle labels, controlling and tailoring their properties in a very predictable manner to meet the requirements of specific applications. This articles reviews recent advances, exploiting nanoparticle labels, in the sandwich-type immunosensors and immunoassays. Routine approaches involve noble metal nanoparticles, carbon nanomaterials, semiconductor nanoparticles, metal oxide nanostructures, and hybrid nanostructures. The enormous signal enhancement associated with the use of nanoparticle labels and with the formation of nanoparticle-antibody-antigen assemblies provides the basis for sensitive detection of disease-related proteins or biomolecules. Techniques commonly rely on the use of biofunctionalized nanoparticles, inorganic-biological hybrid nanoparticles, and signal tag-doped nanoparticles. Rather than being exhaustive, this review focuses on selected examples to illustrate novel concepts and promising applications. Approaches described include the biofunctionalized nanoparticles, inorganic-biological hybrid nanoparticles, and signal tage-doped nanoparticles. Further, promising application in electrochemical, mass-sensitive, optical and multianalyte detection are discussed in detail.
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Affiliation(s)
- Xiaomei Pei
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
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100
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Zhou H, Gan N, Li T, Cao Y, Zeng S, Zheng L, Guo Z. The sandwich-type electrochemiluminescence immunosensor for α-fetoprotein based on enrichment by Fe3O4-Au magnetic nano probes and signal amplification by CdS-Au composite nanoparticles labeled anti-AFP. Anal Chim Acta 2012; 746:107-13. [DOI: 10.1016/j.aca.2012.08.036] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 08/09/2012] [Accepted: 08/17/2012] [Indexed: 11/15/2022]
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