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Wang C, Liu M, Zhang D, Li P, Wang D, Sun S, Wei W. Detection of β-amyloid peptide aggregates by quartz crystal microbalance based on dual-aptamer assisted signal amplification. Anal Chim Acta 2023; 1244:340857. [PMID: 36737146 DOI: 10.1016/j.aca.2023.340857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/17/2023] [Accepted: 01/17/2023] [Indexed: 01/19/2023]
Abstract
β-amyloid peptide (Aβ) aggregates are regarded as a typical neuropathology hallmark for the diagnosis of Alzheimer's disease (AD). Aβ40 aggregates include soluble oligomers (Aβ40O) and insoluble fibrils (Aβ40F). Both of them can simultaneously bind to two different kinds of its aptamer (Apt1 and Apt2). As a mass-sensitive sensing platform, quartz crystal microbalance (QCM) converts changes in mass on the Au chip surface into frequency shift. Here, a dual-aptamer assisted Aβ40 aggregates assay was developed. Taking Aβ40O detection as an example, Apt2 was modified on the surface of Au chip by Au-S bond. Subsequently, the solution consisted of Aβ40O and gold nanoparticles-Apt1 (AuNPs-Apt1) were injected into the QCM chamber. As a result, Aβ40O was specifically recognized and captured by Apt2. AuNPs-Apt1 were also combined on the surface of the Au chip because Aβ40O can simultaneously bind to Apt1. Then, a significant frequency shift occurred because of the large weight of AuNPs. Similarly, this procedure can be used to detect Aβ40F. This QCM biosensor was able to detect Aβ40O with a range of 0.2-10 pM with a detection limit of 0.11 pM, while the linear range for Aβ40F was 0.1-10 pM with a detection limit of 0.02 pM. This QCM biosensor was simple and highly sensitive, which provided a new method for Aβ40 aggregates detection.
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Affiliation(s)
- Chenchen Wang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Mengke Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Duoduo Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Peng Li
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Dingzhong Wang
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Shihao Sun
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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2
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Liquid Crystal Droplet-Based Biosensors: Promising for Point-of-Care Testing. BIOSENSORS 2022; 12:bios12090758. [PMID: 36140143 PMCID: PMC9496589 DOI: 10.3390/bios12090758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 01/07/2023]
Abstract
The development of biosensing platforms has been impressively accelerated by advancements in liquid crystal (LC) technology. High response rate, easy operation, and good stability of the LC droplet-based biosensors are all benefits of the long-range order of LC molecules. Bioprobes emerged when LC droplets were combined with biotechnology, and these bioprobes are used extensively for disease diagnosis, food safety, and environmental monitoring. The LC droplet biosensors have high sensitivity and excellent selectivity, making them an attractive tool for the label-free, economical, and real-time detection of different targets. Portable devices work well as the accessory kits for LC droplet-based biosensors to make them easier to use by anyone for on-site monitoring of targets. Herein, we offer a review of the latest developments in the design of LC droplet-based biosensors for qualitative target monitoring and quantitative target analysis.
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Wang Y, Zhao P, Zhang S, Zhu K, Shangguan X, Liu L, Zhang S. Application of Janus Particles in Point-of-Care Testing. BIOSENSORS 2022; 12:bios12090689. [PMID: 36140074 PMCID: PMC9496037 DOI: 10.3390/bios12090689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 06/01/2023]
Abstract
Janus particles (JPs), named after the two-faced Roman god, are asymmetric particles with different chemical properties or polarities. JPs have been widely used in the biomedical field in recent years, including as drug carriers for targeted controlled drug release and as biosensors for biological imaging and biomarker detection, which is crucial in the early detection and treatment of diseases. In this review, we highlight the most recent advancements made with regard to Janus particles in point-of-care testing (POCT). Firstly, we introduce several commonly used methods for preparing Janus particles. Secondly, we present biomarker detection using JPs based on various detection methods to achieve the goal of POCT. Finally, we discuss the challenges and opportunities for developing Janus particles in POCT. This review will facilitate the development of POCT biosensing devices based on the unique properties of Janus particles.
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Ghafary Z, Salimi A, Hallaj R. Exploring the Role of 2D-Graphdiyne as a Charge Carrier Layer in Field-Effect Transistors for Non-Covalent Biological Immobilization against Human Diseases. ACS Biomater Sci Eng 2022; 8:3986-4001. [PMID: 35939853 DOI: 10.1021/acsbiomaterials.2c00607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Graphdiyne's (GDY's) outstanding features have made it a novel 2D nanomaterial and a great candidate for electronic gadgets and optoelectronic devices, and it has opened new opportunities for the development of highly sensitive electronic and optical detection methods as well. Here, we testified a non-covalent grafting strategy in which GDY serves as a charge carrier layer and a bioaffinity substrate to immobilize biological receptors on GDY-based field-effect transistor (FET) devices. Firm non-covalent anchoring of biological molecules via pyrene groups and electrostatic interactions in addition to preserved electrical properties of GDY endows it with features of an ultrasensitive and stable detection mechanism. With emerging new forms and extending the subtypes of the already existing fatal diseases, genetic and biological knowledge demands more details. In this regard, we constructed simple yet efficient platforms using GDY-based FET devices in order to detect different kinds of biological molecules that threaten human health. The resulted data showed that the proposed non-covalent bioaffinity assays in GDY-based FET devices could be considered reliable strategies for novel label-free biosensing platforms, which still reach a high on/off ratio of over 104. The limits of detection of the FET devices to detect DNA strands, the CA19-9 antigen, microRNA-155, the CA15-3 antigen, and the COVID-19 antigen were 0.2 aM, 0.04 pU mL-1, 0.11 aM, 0.043 pU mL-1, and 0.003 fg mL-1, respectively, in the linear ranges of 1 aM to 1 pM, 1 pU mL-1 to 0.1 μU mL-1, 1 aM to 1 pM, 1 pU mL-1 to 10 μU mL-1, and 1 fg mL-1 to 10 ng mL-1, respectively. Finally, the extraordinary performance of these label-free FET biosensors with low detection limits, high sensitivity and selectivity, capable of being miniaturized, and implantability for in vivo analysis makes them a great candidate in disease diagnostics and point-of-care testing.
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Affiliation(s)
- Zhaleh Ghafary
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran.,Research Center for Nanotechnology, University of Kurdistan, 66177-15175 Sanandaj, Iran
| | - Rahman Hallaj
- Department of Chemistry, University of Kurdistan, 66177-15175 Sanandaj, Iran.,Research Center for Nanotechnology, University of Kurdistan, 66177-15175 Sanandaj, Iran
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5
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Liu LS, Kim JM, Kim WS. In situ discrimination of polymorphs and phase transformation of sulfamerazine using quartz crystal microbalance. Anal Chim Acta 2022; 1221:340137. [DOI: 10.1016/j.aca.2022.340137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/21/2022] [Accepted: 06/28/2022] [Indexed: 11/01/2022]
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Marti A, Huskens J. Au Nanoparticle-Based Amplified DNA Detection on Poly-l-lysine Monolayer-Functionalized Electrodes. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:242. [PMID: 35055260 PMCID: PMC8780787 DOI: 10.3390/nano12020242] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 02/06/2023]
Abstract
Affinity sensing of nucleic acids is among the most investigated areas in biosensing due to the growing importance of DNA diagnostics in healthcare research and clinical applications. Here, we report a simple electrochemical DNA detection layer, based on poly-l-lysine (PLL), in combination with gold nanoparticles (AuNPs) as a signal amplifier. The layer shows excellent reduction of non-specific binding and thereby high contrast between amplified and non-amplified signals with functionalized AuNPs; the relative change in current was 10-fold compared to the non-amplified signal. The present work may provide a general method for the detection of tumor markers based on electrochemical DNA sensing.
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Affiliation(s)
| | - Jurriaan Huskens
- Department of Molecules & Materials, MESA+ Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands;
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Ma D, Zheng SR, Fan J, Cai SL, Dai Z, Zou XY, Teng SH, Zhang WG. A new QCM signal enhancement strategy based on streptavidin@metal-organic framework complex for miRNA detection. Anal Chim Acta 2020; 1095:212-218. [PMID: 31864625 DOI: 10.1016/j.aca.2019.10.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/21/2022]
Abstract
Sensitive and selective detection of miRNA is of great significance for the early diagnosis of human diseases, especially for cancers. Quartz crystal microbalance (QCM) is an effective tool for detecting biological molecules; however, the application of QCM for miRNA detection is still very limited. One of the great needs for QCM detection is to further improve the QCM signal. Herein, for the first time, we promote a new signal enhancement strategy for the detection of miRNA by QCM. First, a hairpin biotin-modified DNA was used as a probe DNA, which exposes the biotin site when interacting with target miRNA. Then, a streptavidin@metal-organic framework (SA@MOF) complex formed by electrostatic attractions between SA and a MOF was introduced into the QCM detection system. The SA@MOF complexes serve as both a signal amplifier and a specific recognition element via specific biotin-SA interactions. The strategy was applied to the detection of a colorectal cancer marker, miR-221, by using a stable Zr(IV)-MOF, UiO-66-NH2. The detection linear range was 10 fM-1 nM, the detection limit was 6.9 fM, and the relative standard deviation (RSD) (n = 5) was lower than 10% in both simulated conditions and the real serum environment. Furthermore, the detection limit reached 0.79 aM when coupled with the isothermal exponential amplification reaction (EXPAR).
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Affiliation(s)
- Ding Ma
- School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Sheng-Run Zheng
- School of Chemistry, South China Normal University, Guangzhou, 510006, China.
| | - Jun Fan
- School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Song-Liang Cai
- School of Chemistry, South China Normal University, Guangzhou, 510006, China
| | - Zong Dai
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiao-Yong Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Shao-Hua Teng
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wei-Guang Zhang
- School of Chemistry, South China Normal University, Guangzhou, 510006, China.
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8
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Ma D, Zheng SR, Fan J, Cai SL, Dai Z, Zou XY, Teng SH, Zhang WG. A new amplification strategy for a quartz crystal microbalance miRNA sensor based on selective interactions between a metal–organic framework and miRNA. NEW J CHEM 2020. [DOI: 10.1039/c9nj04600c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
UiO-66 is used as an effective amplifier in a QCM miRNA sensor to detect Let-7a.
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Affiliation(s)
- Ding Ma
- School of Chemistry
- South China Normal University
- Guangzhou
- China
| | - Sheng-Run Zheng
- School of Chemistry
- South China Normal University
- Guangzhou
- China
| | - Jun Fan
- School of Chemistry
- South China Normal University
- Guangzhou
- China
| | - Song-Liang Cai
- School of Chemistry
- South China Normal University
- Guangzhou
- China
| | - Zong Dai
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Xiao-Yong Zou
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Shao-Hua Teng
- School of Computer Science and Technology
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Wei-Guang Zhang
- School of Chemistry
- South China Normal University
- Guangzhou
- China
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Yang H, Li P, Wang D, Liu Y, Wei W, Zhang Y, Liu S. Quartz Crystal Microbalance Detection of Poly(ADP-ribose) Polymerase-1 Based on Gold Nanorods Signal Amplification. Anal Chem 2019; 91:11038-11044. [PMID: 31257855 DOI: 10.1021/acs.analchem.9b01366] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recent findings have thrust poly(ADP-ribose) polymerase-1 (PARP-1) into the limelight as a potential biomarker and chemotherapeutic target for cancer. Thus, a sensitive method for detection of PARP-1 is necessary for early diagnosis of cancer and drug development. However, the poor electrochemical and optical activity of PARP-1 and its product poly(ADP-ribose) (PAR) prompted researchers to develop more methods. Here, we developed an efficient method for the determination of PARP-1 by using quartz crystal microbalance (QCM) because it is mass-sensitive. Once activated by the specific DNA, PARP-1 cleaves nicotinamideadenine dinucleotide (NAD+) into nicotinamide and ADP-ribose to synthesize a hyperbranched poly(ADP-ribose) polymer. Although QCM is mass-sensitive, it is not sensitive enough to discern PAR effectively. So, positively charged cetyltrimethylammonium bromide (CTAB)-coated gold nanorods (GNRs) were introduced to increase the frequency change significantly because of the strong electrostatic interaction between them with negatively charged PAR. PARP-1 ranging from 0.06 to 3 nM can be facilely detected with a low detection limit of 0.04 nM. The strategy has been used to evaluate PARP-1 inhibitors and to detect PARP-1 activity in real cancer cells lysate with satisfactory results, indicating that it was a promising candidate for clinical diagnosis and drug screening in the future.
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Affiliation(s)
- Haitang Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Peng Li
- Zhengzhou Tobacco Research Institute of CNTC , Zhengzhou 450001 , China
| | - Dingzhong Wang
- Zhengzhou Tobacco Research Institute of CNTC , Zhengzhou 450001 , China
| | - Yong Liu
- College of Chemistry and Chemical Engineering , Henan University , Kaifeng 475004 , P.R. China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
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Mehmood S, Khan A, Bilal M, Sohail A, Iqbal H. Aptamer-based biosensors: a novel toolkit for early diagnosis of cancer. MATERIALS TODAY CHEMISTRY 2019. [DOI: 10.1016/j.mtchem.2019.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Huang R, He N, Li Z. Recent progresses in DNA nanostructure-based biosensors for detection of tumor markers. Biosens Bioelectron 2018. [DOI: 10.1016/j.bios.2018.02.053] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Sun X, Chen H, Wang S, Zhang Y, Tian Y, Zhou N. Electrochemical detection of sequence-specific DNA based on formation of G-quadruplex-hemin through continuous hybridization chain reaction. Anal Chim Acta 2018; 1021:121-128. [PMID: 29681278 DOI: 10.1016/j.aca.2018.02.076] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 02/19/2018] [Accepted: 02/22/2018] [Indexed: 01/06/2023]
Abstract
A high-sensitive detection of sequence-specific DNA was established based on the formation of G-quadruplex-hemin complex through continuous hybridization chain reaction (HCR). Taking HIV DNA sequence as an example, a capture probe complementary to part of HIV DNA was firstly self-assembled onto the surface of Au electrode. Then a specially designed assistant probe with both terminals complementary to the target DNA and a G-quadruplex-forming sequence in the center was introduced into the detection solution. In the presence of both the target DNA and the assistant probe, the target DNA can be captured on the electrode surface and then a continuous HCR can be conducted due to the mutual recognition of the target DNA and the assistant probe, leading to the formation of a large number of G-quadruplex on the electrode surface. With the help of hemin, a pronounced electrochemical signal can be observed in differential pulse voltammetry (DPV), due to the formation of G-quadruplex-hemin complex. The peak current is linearly related with the logarithm of the concentration of the target DNA in the range from 10 fM to 10 pM. The electrochemical sensor has high selectivity to clearly discriminate single-base mismatched and three-base mismatched sequences from the original HIV DNA sequence. Moreover, the established DNA sensor was challenged by detection of HIV DNA in human serum samples, which showed the low detection limit of 6.3 fM. Thus it has great application prospect in the field of clinical diagnosis and environmental monitoring.
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Affiliation(s)
- Xiaofan Sun
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Haohan Chen
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Shuling Wang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yiping Zhang
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yaping Tian
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Nandi Zhou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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13
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Zuo L, Qu Q, Li L, Ran X, Gui J, Wang Q, Cui X, Jiang C. Electrochemical DNA Biosensor Based on Magnetite/Multiwalled Carbon Nanotubes/Chitosan Nanocomposite for Bacillus Cereus
Detection of Potential Marker for Gold Prospecting. ELECTROANAL 2018. [DOI: 10.1002/elan.201700801] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Limei Zuo
- School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Qing Qu
- School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Lei Li
- Laboratory for Conservation and Utilization of Bio-Resources; Yunnan University; Kunming 650091 China
| | - Xin Ran
- School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Jingwei Gui
- School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Qiang Wang
- CNPC; Soulth-eas Asia Pipeline Co. Ltd; Beijing 100000 China
| | - Xinhua Cui
- CNPC; Soulth-eas Asia Pipeline Co. Ltd; Beijing 100000 China
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14
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Li R, Liu L, Zhu H, Li Z. Synthesis of gold-palladium nanowaxberries/dodecylamine-functionalized graphene quantum dots-graphene micro-aerogel for voltammetric determination of peanut allergen Ara h 1. Anal Chim Acta 2018; 1008:38-47. [PMID: 29420942 DOI: 10.1016/j.aca.2018.01.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/07/2018] [Accepted: 01/15/2018] [Indexed: 01/24/2023]
Abstract
The paper reports synthesis of gold-palladium nanowaxberries(AuPd NWs)/dodecylamine-functionalized graphene quantum dots(D-GQDs)-graphene micro-aerogel(GMA). D-GQDs was used as a solid particle surfactant for stabilizing Pickering emulsion of toluene-in-graphene oxide aqueous dispersion. Graphene oxide sheets in the aqueous phase are reduced by hydrazine hydrate, diffused into the toluene droplet and self-assembled into graphene oxide micro-gels. Followed by freeze-drying, thermal annealing and hybridized with AuPd NWs. The as-prepared AuPd NWs/D-GQDs-GMA shows an unique three-dimensional structure with the size of microns. The small size and strong polarity make it can be directly dispersed in ethanol to form stable dispersion for sensor preparation. The hybrid of GMA, D-GQDs and AuPd NWs greatly improves the electron transfer, electroactive surface area and ion diffusion. The architecture of conductor/semiconductor/conductor achieves to a significant amplification of detection signal. The DNA biosensor based on the AuPd NWs/D-GQDs-GMA exhibits ultrasensitive differential pulse voltammetric (DPV) response towards peanut allergen Ara h 1. The DPV signal linearly increases with increasing DNA concentration in the range of 1.0 × 10-22-1.0 × 10-17 M with the detection limit of 4.7 × 10-23 M (S/N = 3). The analytical method was successfully applied to voltammetric determination of peanut allergen Ara h 1 in peanut milk beverage.
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Affiliation(s)
- Ruiyi Li
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Ling Liu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Haiyan Zhu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zaijun Li
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Wuxi, 214122, China.
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15
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Wang L. Screening and Biosensor-Based Approaches for Lung Cancer Detection. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2420. [PMID: 29065541 PMCID: PMC5677261 DOI: 10.3390/s17102420] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 02/07/2023]
Abstract
Early diagnosis of lung cancer helps to reduce the cancer death rate significantly. Over the years, investigators worldwide have extensively investigated many screening modalities for lung cancer detection, including computerized tomography, chest X-ray, positron emission tomography, sputum cytology, magnetic resonance imaging and biopsy. However, these techniques are not suitable for patients with other pathologies. Developing a rapid and sensitive technique for early diagnosis of lung cancer is urgently needed. Biosensor-based techniques have been recently recommended as a rapid and cost-effective tool for early diagnosis of lung tumor markers. This paper reviews the recent development in screening and biosensor-based techniques for early lung cancer detection.
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Affiliation(s)
- Lulu Wang
- School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China.
- Institute of Biomedical Technologies, Auckland University of Technology, Auckland 1142, New Zealand.
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Wu C, Li X, Song S, Pei Y, Guo L, Pei Z. QCM Biosensor Based on Polydopamine Surface for Real-Time Analysis of the Binding Kinetics of Protein-Protein Interactions. Polymers (Basel) 2017; 9:E482. [PMID: 30965783 PMCID: PMC6418727 DOI: 10.3390/polym9100482] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 12/19/2022] Open
Abstract
A quartz crystal microbalance (QCM) biosensor based on polydopamine (PDA) surface was developed for real-time analysis of the binding kinetics of protein-protein interactions. The biosensor was fabricated by simply immersing the gold sensor chip into an aqueous dopamine solution at pH 8.5 leading to a spontaneous deposition of PDA film onto the sensor chip surface, which was followed by incubation with the protein to immobilize it onto the PDA-coated sensor chip surface via Michael addition and/or Schiff base reactions. In this paper, the interaction between monoclonal anti-myoglobin 7005 antibody (IgG1) and its antigen human cardiac myoglobin was used as a model system for real-time analysis of biomolecule interactions on the biosensor surface. The kinetic parameters of the interaction between anti-myoglobin 7005 and myoglobin were studied on the biosensor surface, which were consistent with the results obtained via amine coupling. The biosensor based on PDA surface has excellent regenerability, reproducibility, and specificity. Compared with the most frequently/typically used amine coupling method for immobilization of proteins on carboxylated substrates, the modification methodology presented in this paper is simple, mild and is not subjected to the limitations of the isoelectric point (pI) of the protein. In addition, the PDA biosensor chip can be easily reused, which makes QCM biosensor analysis more efficient and cost effective.
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Affiliation(s)
- Chunli Wu
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China.
| | - Xueming Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China.
| | - Siyu Song
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China.
| | - Yuxin Pei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China.
| | - Lili Guo
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China.
| | - Zhichao Pei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, China.
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