1
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Xia S, Wu W, Yin F, Shi J, Ma Y, Lin JM, Wu X, Hu Q. Surfactant-mediated colorimetric assay assisted with in-situ rolling circle amplification on magnetic beads. Anal Chim Acta 2023; 1278:341709. [PMID: 37709452 DOI: 10.1016/j.aca.2023.341709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/13/2023] [Accepted: 08/11/2023] [Indexed: 09/16/2023]
Abstract
Gold nanoparticles (AuNPs) with localized surface plasmon resonance effect have been widely used for colorimetric detection based on the interparticle plasmon coupling during AuNPs aggregation. However, it is still challenging to develop portable and quantitative methods with good sensitivity and excellent selectivity. In this study, a smartphone-based colorimetric assay is developed on the principle of surfactant-mediated AuNPs aggregation assisted with rolling circle amplification (RCA) on magnetic beads (MBs). The detection of adenosine is demonstrated as an example. The cetyl trimethyl ammonium bromide (CTAB) causes the negatively charged AuNPs to aggregate, which results in the color change from red to blue. When adenosine is in solution, the RCA process is triggered on the MBs because of specific adenosine-aptamer recognition, resulting in prolongation of single-stranded nucleic acid (ssDNA). The solution color remains red due to the electrostatic interaction between CTAB and ssDNA. Using this method, the limit of detection (LOD) for adenosine can be as low as 16 pM. Besides, it also works well in human serum. In addition, a portable device integrated with in-situ RGB analysis software is developed for the detection with a smartphone. This study offers a new strategy to improve the sensitivity and selectivity for the AuNPs-based colorimetric assay, taking advantages of specific aptamer recognition, in-situ RCA on MBs, magnetic separation, and smartphone-based portable device.
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Affiliation(s)
- Shuang Xia
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, 250014, China; School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Wenli Wu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, 250014, China; School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
| | - Fangchao Yin
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, 250014, China; School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Jianguo Shi
- Key Laboratory for Biosensors of Shandong Province, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Yaohong Ma
- Key Laboratory for Biosensors of Shandong Province, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xu Wu
- Department of Chemistry, University of South Dakota, Vermillion, SD, 57069, United States
| | - Qiongzheng Hu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, 250014, China; School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
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2
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Yi J, Wang Z, Hu J, Yu T, Wang Y, Ge P, Xianyu Y. Point-of-Care Detection of Antioxidant in Agarose-Based Test Strip through Antietching of Au@Ag Nanostars. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37328300 DOI: 10.1021/acsami.3c02440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Antioxidants are crucial for human health, and the detection of antioxidants can provide valuable information for disease diagnosis and health management. In this work, we report a plasmonic sensing approach for the determination of antioxidants based on their antietching capacity toward plasmonic nanoparticles. The Ag shell of core-shell Au@Ag nanostars can be etched by chloroauric acid (HAuCl4), whereas antioxidants can interact with HAuCl4, which prevents the surface etching of Au@Ag nanostars. We modulate the thickness of the Ag shell and morphology of the nanostructures, showing that the core-shell nanostars with the smallest thickness of Ag shell have the best etching sensitivity. Owing to the extraordinary surface plasmon resonance (SPR) property of Au@Ag nanostars, the antietching effect of antioxidants can induce a significant change in both the SPR spectrum and the color of solution, facilitating both the quantitative detection and naked-eye readout. This antietching strategy enables the determination of antioxidants such as cystine and gallic acid with a linear range of 0.1-10 μM. The core-shell Au@Ag nanostars are further immobilized in agarose gels to fabricate test strips, which can display different color changes in the presence of HAuCl4 from 0 to 1000 μM. The agarose-based test strip is also capable of detecting antioxidants in real samples, which allows naked-eye readout and quantitative detection by a smartphone.
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Affiliation(s)
- Jiuhong Yi
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Zexiang Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Jing Hu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Ting Yu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Yidan Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Pengfei Ge
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
| | - Yunlei Xianyu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Biosystems Engineering and Food Science, Zhejiang University, 310058 Hangzhou, China
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, 310016 Hangzhou, China
- Ningbo Research Institute, Zhejiang University, 315100 Ningbo, China
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3
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Khoshfetrat SM, Fasihi K, Moradnia F, Kamil Zaidan H, Sanchooli E. A label-free multicolor colorimetric and fluorescence dual mode biosensing of HIV-1 DNA based on the bifunctional NiFe 2O 4@UiO-66 nanozyme. Anal Chim Acta 2023; 1252:341073. [PMID: 36935160 DOI: 10.1016/j.aca.2023.341073] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023]
Abstract
Finding the DNA of the human immune deficiency virus (HIV) with simple and sensitive detection is the main challenge in early diagnosis of AIDS. Herein, two-point separation strategies based on the colorimetric and fluorescence are introduced. The naked-eye qualitative and semiquantitative colorimetric, and also accuracy fluorescence quantification of HIV-1 DNA were applied using label-free NiFe2O4@UiO-66 nanozyme with both functions of peroxidase-mimetic like and emitting fluorescence. The DNA probe-conjugated nanozyme is employed to hybridize a sequence of HIV-1. NiFe2O4@UiO-66 nanozymes catalyze the decomposition of H2O2 to •OH which can produce a remarkable fluorescent product 2-hydroxyterephthalic acid (TAOH) by the oxidation of the bridging ligand of weakly fluorescent terephthalic acid (TA). The accessibility of H2O2 toward confined-NiFe2O4 MNPs was reduced by increasing the HIV-1 target DNA concentration, resulting in the fluorescence intensity of TAOH being decreased. Meanwhile, remaining the unreacted H2O2 was transferred an acidic colorimetric solution containing FeSO4 and gold nanorods (AuNRs). Increasing the amount of H2O2 available for longitudinal etching of AuNRs due to •OH-generating Fe+2-catalyzed H2O2 is reponsible for different colors from brownish to colorless depending on the HIV-1 target DNA concentration. The fluorescence intensity and obtained colors have offered the sensitive biosensing methods with a linear range from 0.05 to 300 and 1-200 pM, respectively with a detection limit as low as 1 fM. Our study revealed that the applied sensing assay provides a cost-effective and straightforward qualitative, semiquantitative, and sensitive quantitation visible monitoring without the necessity of high-end instruments for HIV-1 detection in a human blood plasma/serum samples.
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Affiliation(s)
- Seyyed Mehdi Khoshfetrat
- Department of Chemistry, Faculty of Basic Science, Ayatollah Boroujerdi University, Boroujerd, Iran.
| | - Kamran Fasihi
- Department of Chemistry, Faculty of Basic Science, Ayatollah Boroujerdi University, Boroujerd, Iran
| | - Farzaneh Moradnia
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran
| | - Haider Kamil Zaidan
- Department of Medical Laboratories Techniques, Al-Mustaqbal University College, Hillah, Babylon, Iraq
| | - Esmael Sanchooli
- Department of Chemistry, University of Zabol, P.O. Box: 98615-538, Zabol, Iran
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4
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Hu Y, Xie Q, Chang L, Tao X, Tong C, Liu B, Wang W. A radar-like DNA monitor for RNase H-targeted natural compounds screening and RNase H activity in situ detection. Analyst 2021; 146:5980-5987. [PMID: 34499070 DOI: 10.1039/d1an01046h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ribonuclease H is essential for the research and development of complex pathema. The high rigidity and versatility of DNA tetrahedrons means they are often used in biosensing systems. Inspired by "radar" technology, we proposed a radar-like monitor to detect RNase H activity in vitro and in situ by integrating DNA tetrahedral elements. The structure of a radar-like monitor was self-assembled from five customized single nucleic acid strands. Four DNA strands were assembled as DNA tetrahedrons with a long strand labeled by Dabcyl (quencher) at one of the apexes, while the fifth strand (DNA-RNA heterozygous strand) was labeled with a FAM (Fluorophore) hybrid with a long strand. The fluorescence was quenched because the fluorophore and the quencher were very close. In the presence of RNase H, the RNA chain was hydrolyzed and the fluorophore released, resulting in fluorescence recovery. The radar-like monitor was used to detect the RNase H activity in vitro with a detection limit of 0.01 U mL-1. Based on the RNase H activity detection and the inhibitory effect of natural-compounds-targeting RNase H, three inhibitors were obtained among 35 compounds extracted from Panax japonicus. Therefore, the radar-like monitor was successfully used to detect RNase H activity in situ due to the long-term anti-DNase I effect of the RNA/DNA hybrid structure and DNA tetrahedrons structure. Overall, this radar-like monitor can effectively avoid false-positive signals and significantly improve the accuracy, precision, and reliability of detection. It is expected that the development of such an intelligent nano-platform will open the door to cancer diagnosis and treatment in clinical systems.
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Affiliation(s)
- Yalei Hu
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China.
| | - Qian Xie
- TCM and Ethnomedicine Innovation & Development International Laboratory, Innovative Material Medical Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China.
| | - Li Chang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410008, PR China
| | - Xueqing Tao
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China.
| | - Chunyi Tong
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China.
| | - Bin Liu
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China.
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, Innovative Material Medical Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China.
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5
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Abstract
Ribonucleases are useful as biomarkers and can be the source of contamination in laboratory samples, making ribonuclease detection assays important in life sciences research. With recent developments in DNA-based biosensing, several new techniques are being developed to detect ribonucleases. This review discusses some of these methods, specifically those that utilize G-quadruplex DNA structures, DNA-nanoparticle conjugates and DNA nanostructures, and the advantages and challenges associated with them.
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6
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Sheet SK, Rabha M, Sen B, Patra SK, Aguan K, Khatua S. Ruthenium(II) Complex-Based G-quadruplex DNA Selective Luminescent 'Light-up' Probe for RNase H Activity Detection. Chembiochem 2021; 22:2880-2887. [PMID: 34314094 DOI: 10.1002/cbic.202100229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/03/2021] [Indexed: 12/14/2022]
Abstract
A bis-heteroleptic ruthenium(II) complex, 1[PF6 ]2 of benzothiazole amide substituted 2,2'-bipyridine ligand (bmbbipy) has been synthesized for the selective detection of G-quadruplex (GQ) DNA and luminescence-assay-based RNase H activity monitoring. Compound 1[PF6 ]2 exhibited aggregation-caused quenching (ACQ) in water. Aggregate formation was supported by DLS, UV-vis, and 1 H NMR spectroscopy results, and the morphology of aggregated particles was witnessed by SEM and TEM. 1[PF6 ]2 acted as an efficient GQ DNA-selective luminescent light-up probe over single-stranded and double-stranded DNA. The competency of 1[PF6 ]2 for selective GQ structure detection was established by PL and CD spectroscopy. For 1[PF6 ]2 , the PL light-up is exclusively due to the rigidification of the benzothiazole amide side arm in the presence of GQ-DNA. The interaction between the probe and GQ-DNA was analyzed by molecular docking analysis. The GQ structure detection capability of 1[PF6 ]2 was further applied in the luminescent 'off-on' RNase H activity detection. The assay utilized an RNA:DNA hybrid, obtained from 22AG2-RNA and 22AG2-DNA sequences. RNase H solely hydrolyzed the RNA of the RNA:DNA duplex and released G-rich 22AG2-DNA, which was detected via the PL enhancement of 1[PF6 ]2 . The selectivity of RNase H activity detection over various other restriction enzymes was also demonstrated.
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Affiliation(s)
- Sanjoy Kumar Sheet
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
| | - Monosh Rabha
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
| | - Bhaskar Sen
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
| | - Sumit Kumar Patra
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
| | - Kripamoy Aguan
- Department of Biotechnology and Bioinformatics, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
| | - Snehadrinarayan Khatua
- Centre for Advanced Studies, Department of Chemistry, North-Eastern Hill University, 793022, Shillong, Meghalaya, India
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7
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Zhao H, Liu Y, Cui J, Yang C, Gao N, Jing J, Zhang X. Enzyme-triggered DNA nanomimosa: A ratiometric nanoprobe for RNase H activity sensing in living cells. Talanta 2021; 233:122547. [PMID: 34215050 DOI: 10.1016/j.talanta.2021.122547] [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: 02/06/2021] [Revised: 05/14/2021] [Accepted: 05/19/2021] [Indexed: 11/24/2022]
Abstract
Since ribonuclease H (RNase H) exhibits its importance in a variety of cellular processes. It is necessary to establish strategy for RNase H detection. In this work, we are enlightened by mimosa, a natural plant which can fold in response to stimuli, to construct a DNA tetrahedron-based nanoprobe, termed DNA nanomimosa, to sensing RNase H activity based on fluorescent resonance energy transfer (FRET). The DNA nanomimosa was self-assembled from four DNA chains and one RNA chain. One of the four DNA chains contains a FRET-paired fluorophores-labeled hairpin DNA structures which is unfolded by the RNA chain through hybridization. Without RNase H, the RNA chain separate the two FRET-paired fluorophores in hairpin DNA structure, giving a feeble FRET signal. However, the presence of RNase H can selectively digest the RNA strand in RNA/unfolded-hairpin DNA section, resulting in the hairpin DNA configuration changed from "unfolded" state to "folded" state and further turn on the FRET signal. The DNA nanomimosa can be applied to achieve the determination of RNase H activity by recording the emission intensity of donor and acceptor fluorophores. This strategy shows a low detection limit by 0.017 U/mL, good specificity, and distinct advantages like the self-delivery ability, good biocompatibility, and the capacity to minimize the effects of fluctuations. This design provides a potential application in ribonuclease research and could be expanded for other biomedical research and clinical diagnostics.
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Affiliation(s)
- Hengzhi Zhao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yazhou Liu
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jie Cui
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Chunlei Yang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Na Gao
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jing Jing
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Xiaoling Zhang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China.
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8
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Zhang Q, He L, Rani KK, Wu D, Han J, Chen Y, Su W. Colorimetric detection of neomycin sulfate in tilapia based on plasmonic core-shell Au@PVP nanoparticles. Food Chem 2021; 356:129612. [PMID: 33831828 DOI: 10.1016/j.foodchem.2021.129612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/20/2021] [Accepted: 03/11/2021] [Indexed: 01/19/2023]
Abstract
The rapid colorimetric detection of neomycin sulfate has been achieved using polyvinyl pyrrolidone shell coated gold nanoparticle (Au@PVP NPs) sol. We also observed that, the aggregation of Au@PVP NPs, possibly caused by the hydrogen bonds formed between neomycin sulfate and PVP shell, generates a new surface plasmon resonance absorption in the wavelength of 600 ~ 700 nm. The proposed method showed an excellent performance towards the determination of neomycin sulfate in wide linear range from 0.01 ~ 10 µM with a correlation coefficient of 0.99 and low detection limit of 1 nM. After extracted with trichloroacetic acid and treated with hot chloroform, neomycin sulfate in the tilapia fish samples was detected with satisfied recovery. Additionally, the high selectivity of Au@PVP NPs sol towards neomycin sulfate has been achieved even in presence of common interfering agents. This method has the advantages of high sensitivity, rapidity, specificity, low cost and no complicated pretreatment procedure.
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Affiliation(s)
- Qin Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
| | - Luying He
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | | | - Deyin Wu
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jiaojiao Han
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Yanhong Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Wenjin Su
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
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9
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Gulati S, Singh P, Diwan A, Mongia A, Kumar S. Functionalized gold nanoparticles: promising and efficient diagnostic and therapeutic tools for HIV/AIDS. RSC Med Chem 2020; 11:1252-1266. [PMID: 34095839 PMCID: PMC8126886 DOI: 10.1039/d0md00298d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 08/31/2020] [Indexed: 02/05/2023] Open
Abstract
Functionalized gold nanoparticles are recognized as promising vehicles in the diagnosis and treatment of human immunodeficiency virus (HIV) owing to their excellent biocompatibility with biomolecules (like DNA or RNA), their potential for multivalency and their unique optical and structural properties. In this context, this review article focuses on the diverse detection abilities and delivery and uptake methodologies of HIV by targeting genes and proteins using gold nanoparticles on the basis of different shapes and sizes in order to promote its effective expression. In addition, recent trends in gold nanoparticle mediated HIV detection, delivery and uptake and treatment are highlighted considering their cytotoxic effects on healthy human cells.
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Affiliation(s)
- Shikha Gulati
- Department of Chemistry, Sri Venkateswara College, University of Delhi Delhi-110021 India
| | - Parinita Singh
- Department of Chemistry, Sri Venkateswara College, University of Delhi Delhi-110021 India
| | - Anchita Diwan
- Department of Chemistry, Sri Venkateswara College, University of Delhi Delhi-110021 India
| | - Ayush Mongia
- Department of Chemistry, Sri Venkateswara College, University of Delhi Delhi-110021 India
| | - Sanjay Kumar
- Department of Chemistry, Sri Venkateswara College, University of Delhi Delhi-110021 India
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10
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Chandrasekaran AR, Trivedi R, Halvorsen K. Ribonuclease-Responsive DNA Nanoswitches. CELL REPORTS. PHYSICAL SCIENCE 2020; 1:100117. [PMID: 32803173 PMCID: PMC7425801 DOI: 10.1016/j.xcrp.2020.100117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
DNA has been used in the construction of dynamic DNA devices that can reconfigure in the presence of external stimuli. These nanodevices have found uses in fields ranging from biomedical to materials science applications. Here, we report a DNA nanoswitch that can be reconfigured using ribonucleases (RNases) and explore two applications: biosensing and molecular computing. For biosensing, we show the detection of RNase H and other RNases in relevant biological fluids and temperatures, as well as inhibition by the known enzyme inhibitor kanamycin. For molecular computing, we show that RNases can be used to enable erasing, write protection, and erase-rewrite functionality for information-encoding DNA nanoswitches. The simplistic mix-and-read nature of the ribonuclease-activated DNA nanoswitches could facilitate their use in assays for identifying RNase contamination in biological samples or for the screening and characterization of RNase inhibitors.
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Affiliation(s)
- Arun Richard Chandrasekaran
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
- Twitter: @arunrichardc
| | - Ruju Trivedi
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
| | - Ken Halvorsen
- The RNA Institute, University at Albany, State University of New York, Albany, NY 12222, USA
- Twitter: @HalvorsenLab
- Lead Contact
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Abstract
Human immunodeficiency virus (HIV), a type of lentivirus (a subgroup of retrovirus), causes acquired immunodeficiency syndrome (AIDS). This pathophysiologic state destroys the immune system allowing opportunistic infections, cancer and other life-threatening diseases to thrive. Although many analytic tools including enzyme-linked immunoassay (ELISA), indirect and line immunoassay, Western blotting, radio-immunoprecipitation, nucleic acid amplification testing (NAAT) have been developed to detect HIV, recent developments in nanosensor technology have prompted its use as a novel diagnostic approach. Nanosensors provide analytical information about behavior and characteristics of particles by using biochemical reactions mediated by enzymes, immune components, cells and tissues. These reactions are transformed into decipherable signals, i.e., electrical, thermal, optical, using nano to micro scale technology. Nanosensors are capable of both quantitative and qualitative detection of HIV, are highly specific and sensitive and provide rapid reproducible results. Nanosensor technology can trace infant infection during mother-to-child transmission, the latent HIV pool and monitor anti-HIV therapy. In this chapter, we review nanosensor analytics including electrochemical, optical, piezoelectric, SERS-based lateral flow assay, microfluidic channel-based biosensors in the detection of HIV. Other techniques in combination with different biorecognition elements (aptamers, antibodies, oligonucleotides) are also discussed.
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Affiliation(s)
- Sarthak Nandi
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Ayusi Mondal
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Akanksha Roberts
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India
| | - Sonu Gandhi
- DBT-National Institute of Animal Biotechnology (DBT-NIAB), Hyderabad, Telangana, India.
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12
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Wang Y, Hu N, Liu C, Nie C, He M, Zhang J, Yu Q, Zhao C, Chen T, Chu X. An RNase H-powered DNA walking machine for sensitive detection of RNase H and the screening of related inhibitors. NANOSCALE 2020; 12:1673-1679. [PMID: 31894217 DOI: 10.1039/c9nr07550j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Ribonuclease H (RNase H), an intracellular ribonuclease, plays a crucial role in cellular processes and especially relates to many disease processes. Here, we report a novel signal amplification strategy based on an RNase H-powered DNA walking machine for specific and sensitive RNase H activity detection. The DNA walking machine is composed of a small quantity of DNA walker strands and abundant FAM-labeled DNA-RNA chimeric strands on a single gold nanoparticle (AuNP). RNase H can specifically degrade the RNA fragment in a DNA-RNA hybrid duplex and trigger the autonomous movement of a DNA walker strand on the AuNP surface. During this process, each step of the walking can release the FAM-labeled RNA from the surface of the AuNP, realizing the signal amplification for RNase H sensing. This method has been successfully utilized for RNase H activity detection in a complex system and applied for screening of related inhibitors. Therefore, our RNase H-powered DNA walking machine gives a novel platform for RNase H activity detection and RNase H-associated drug discovery.
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Affiliation(s)
- Yafang Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
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13
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Xie Y, Wang N, Li Y, Deng T, Li J, Zhang K, Yu R. Cyclodextrin supramolecular inclusion-enhanced pyrene excimer switching for highly selective detection of RNase H. Anal Chim Acta 2019; 1088:137-143. [PMID: 31623709 DOI: 10.1016/j.aca.2019.08.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 10/26/2022]
Abstract
Here, we report a novel fluorescence method for the highly selective and sensitive detection of RNase H by combining the use of a dual-pyrene-labeled DNA/RNA duplex with supramolecular inclusion-enhanced fluorescence. Initially, the probe is in the "off" state due to the rigidness of the double-stranded duplex, which separates the two pyrene units. In the presence of RNase H, the RNA strand of the DNA/RNA duplex will be hydrolyzed, and the DNA strand transforms into a hairpin structure, bringing close the two pyrene units which in turn enter the hydrophobic cavity of a γ-cyclodextrin. As a result, the pyrene excimer emission is greatly enhanced, thereby realizing the detection of RNase H activity. Under optimal conditions, RNase H detection can be achieved in the range from 0.08 to 4 U/mL, with a detection limit of 0.02 U/mL.
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Affiliation(s)
- Ye Xie
- Institute of Applied Chemistry, School of Science, College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Ningning Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yulong Li
- Institute of Applied Chemistry, School of Science, College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Ting Deng
- Institute of Applied Chemistry, School of Science, College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Jishan Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Ke Zhang
- Institute of Applied Chemistry, School of Science, College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Ruqin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
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14
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Nguyen TTV, Xie X, Xu J, Wu Y, Hong M, Liu X. Plasmonic bimetallic nanodisk arrays for DNA conformation sensing. NANOSCALE 2019; 11:19291-19296. [PMID: 31560008 DOI: 10.1039/c9nr06101k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The integration of large-scale 2D bimetallic Ag/Au nanodisk arrays with gold nanoparticles is developed for sensing DNA conformation with the assistance of 3D finite-difference time-domain simulation. The optimized system comprising Ag/Au nanodisk arrays and gold nanoparticles offers a more than 6-fold enhancement in surface plasmon resonance shift, enabling the feasibility for sensitive DNA detection with a detection limit down to 100 femtomolar. Importantly, owing to the distance-dependent nature of the surface plasmon signal, sensitive differentiation of DNA conformations can be achieved with a conventional optical measurement. This platform could provide new exciting capabilities for a reliable, reproducible, and label-free assay analysis for investigating the conformations of DNA and other biological molecules.
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Affiliation(s)
- Thanh Thi Van Nguyen
- Advanced Materials for Micro- and Nano-Systems Programme, Singapore-MIT Alliance, 117576, Singapore
| | - Xiaoji Xie
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Jiahui Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Yiming Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Minghui Hong
- Department of Electrical and Computer Engineering, National University of Singapore, 117576, Singapore
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore. and The N.1 Institute for Health, National University of Singapore, 28 Medical Dr. #05-COR, 117456, Singapore and Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou, 350207, P. R. China
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15
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Zhou Y, Zhang J, Jiang Q, Lu J. An allosteric switch-based hairpin for label-free chemiluminescence detection of ribonuclease H activity and inhibitors. Analyst 2019; 144:1420-1425. [PMID: 30607414 DOI: 10.1039/c8an02006j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To assay enzyme activities and screen its inhibitors, we demonstrated a novel label-free chemiluminescent (CL) aptasensor for the sensitive detection of RNase H activity based on hairpin technology. The specific hairpin structure was a DNA-RNA chimeric strand, which contained a streptavidin aptamer sequence and a blocked RNA sequence. RNase H could specifically recognize and cleave the RNA sequence of the DNA-RNA hybrid stem, liberating the streptavidin aptamer which could be accumulated by streptavidin-coated magnetic microspheres (SA-MP). Then the CL signal was generated due to an instantaneous derivatization reaction between the specific CL reagent 3,4,5-trimethoxyphenyl-glyoxal (TMPG) and the guanine (G) nucleotides in the SA aptamer. This novel assay method exhibited a good linear relationship in the range of 0.1-10 U mL-1 under the optimized conditions. Our results suggested that the developed system was a promising platform for monitoring the RNase H activity and showed great potential in biomedical studies and drug screening.
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Affiliation(s)
- Ying Zhou
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, China.
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16
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Jung Y, Lee CY, Park KS, Park HG. Target-Activated DNA Polymerase Activity for Sensitive RNase H Activity Assay. Biotechnol J 2019; 14:e1800645. [PMID: 30791223 DOI: 10.1002/biot.201800645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/11/2018] [Indexed: 01/07/2023]
Abstract
Herein, the ribonuclease H (RNase H) activity assay based on the target-activated DNA polymerase activity is described. In this method, a detection probe composed of two functional sequences, a binding site for DNA polymerase and a catalytic substrate for RNase H, serves as a key component. The detection probe, at its initial state, suppresses the DNA polymerase activity, but it becomes destabilized by RNase H, which specifically hydrolyzes RNA in RNA/DNA hybrid duplexes. As a result, DNA polymerase recovers its activity and initiates multiple primer extension reactions in a separate TaqMan probe-based signal transduction module, leading to a significantly enhanced fluorescence "turn-on" signal. This assay can detect RNase H activity as low as 0.016 U mL-1 under optimized conditions. Furthermore, its potential use for evaluating RNase H inhibitors, which have been considered potential therapeutic agents against acquired immune deficiency syndrome (AIDS), is successfully explored. In summary, this approach is quite promising for the sensitive and accurate determination of enzyme activity and inhibitor screening.
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Affiliation(s)
- Yujin Jung
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Chang Y Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ki S Park
- Department of Biological Engineering, College of Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Hyun G Park
- Department of Chemical and Biomolecular Engineering (BK 21+ program), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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17
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Tong C, Zhou T, Zhao C, Yuan L, Xu Y, Liu B, Fan J, Li D, Zhu A. Fluorometric determination of RNase H via a DNAzyme conjugated to reduced graphene oxide, and its application to screening for inhibitors and activators. Mikrochim Acta 2019; 186:335. [DOI: 10.1007/s00604-019-3425-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 04/08/2019] [Indexed: 02/07/2023]
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18
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Ghasemi A, Rabiee N, Ahmadi S, Hashemzadeh S, Lolasi F, Bozorgomid M, Kalbasi A, Nasseri B, Shiralizadeh Dezfuli A, Aref AR, Karimi M, Hamblin MR. Optical assays based on colloidal inorganic nanoparticles. Analyst 2018; 143:3249-3283. [PMID: 29924108 PMCID: PMC6042520 DOI: 10.1039/c8an00731d] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Colloidal inorganic nanoparticles have wide applications in the detection of analytes and in biological assays. A large number of these assays rely on the ability of gold nanoparticles (AuNPs, in the 20 nm diameter size range) to undergo a color change from red to blue upon aggregation. AuNP assays can be based on cross-linking, non-cross linking or unmodified charge-based aggregation. Nucleic acid-based probes, monoclonal antibodies, and molecular-affinity agents can be attached by covalent or non-covalent means. Surface plasmon resonance and SERS techniques can be utilized. Silver NPs also have attractive optical properties (higher extinction coefficient). Combinations of AuNPs and AgNPs in nanocomposites can have additional advantages. Magnetic NPs and ZnO, TiO2 and ZnS as well as insulator NPs including SiO2 can be employed in colorimetric assays, and some can act as peroxidase mimics in catalytic applications. This review covers the synthesis and stabilization of inorganic NPs and their diverse applications in colorimetric and optical assays for analytes related to environmental contamination (metal ions and pesticides), and for early diagnosis and monitoring of diseases, using medically important biomarkers.
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Affiliation(s)
- Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran and Advances Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Navid Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Sepideh Ahmadi
- Advances Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran and Department of Biology, Faculty of Basic Sciences, University of Zabol, Zabol, Iran
| | - Shabnam Hashemzadeh
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran and Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Science, Tabriz, Iran
| | - Farshad Lolasi
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, 81746-73441, Iran and Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Mahnaz Bozorgomid
- Department of Pharmaceutical Chemistry, Islamic Azad University of Pharmaceutical Sciences Branch, Tehran, Iran
| | - Alireza Kalbasi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Behzad Nasseri
- Departments of Microbiology and Microbial Biotechnology and Nanobiotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran and Chemical Engineering Deptartment and Bioengineeing Division, Hacettepe University, 06800, Beytepe, Ankara, Turkey
| | - Amin Shiralizadeh Dezfuli
- Advances Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran and Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Mahdi Karimi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran. and Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran and Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. and Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA and Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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19
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Simultaneous Expression of GUS and Actin Genes by Using the Multiplex RT-PCR and Multiplex Gold Nanoparticle Probes. J Fluoresc 2018; 28:633-638. [PMID: 29687369 DOI: 10.1007/s10895-018-2225-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/27/2018] [Indexed: 12/31/2022]
Abstract
Gene expression analysis is considered to be extremely important in many different biological researches. DNA-based diagnostic test, which contributes to DNA identification, has higher specificity, cost, and speed than some biochemical and molecular methods. In this study, we try to use the novel nano technology approach with Multiplex RT-PCR and Gold nano particular probes (GNPs-probes) in order to get gene expression in Curcumas melons. We used Agrobacterium tumefactions for gene transfer and GUS reporter gene as a reporter. After cDNA synthesis, Multiplex PCR and Multiplex RT-PCR techniques were used. Finally, probes were designed for RNA of GUS and Actin genes, and then the analysis of the gene expression using the probes attached to GNPs was carried out and the color changes in the GNPs were applied. In the following, probes hybridization was checked with DNA between 400 to 700 nm wavelengths and the highest rate was observed in the 550 to 650 nm. The results show that the simultaneous use of GNP-attached detectors and Multiplex RT-PCRcan reduce time and costmore considerably than somelaboratory methods for gene expiration investigation. Additionally, it can be seen thatthere is an increase in sensitivity and specificity of our investigation. Based on our findings, this can bea novel study doneusingMultiplex RT-PCRand unmodified AuNPs for gene transfer and expression detection to plants. We can claim that this assay has a remarkable advantage including rapid, cost-effectiveness, specificity and accuracy to detect transfer and expression genes in plants. Also,we can use this technique from other gene expressionsin many different biology samples.
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20
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Wu K, Ma C, Deng Z, Fang N, Tang Z, Zhu X, Wang K. Label-free and nicking enzyme-assisted fluorescence signal amplification for RNase H determination based on a G-quadruplexe/thioflavin T complex. Talanta 2018; 182:142-147. [PMID: 29501133 DOI: 10.1016/j.talanta.2018.01.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/13/2018] [Accepted: 01/29/2018] [Indexed: 12/21/2022]
Abstract
In this paper, we describe a novel, label-free and nicking enzyme-assisted fluorescence signal amplification strategy that demonstrates to be cost efficient, sensitive, and unique for assaying the RNase H activity and inhibition based on G-quadruplex formation using a thioflavin T (ThT) dye. This novel assay method is able to detect RNase H with a detection limit of 0.03 U /mL and further exhibits a good linearity R2 = 0.9923 at a concentration range of 0.03-1 U/mL under optimized conditions. Moreover, the inhibition effect of gentamycin on the RNase H activity is also studied. This strategy provides a potential tool for the biochemical enzyme analysis and inhibitor screening.
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Affiliation(s)
- Kefeng Wu
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Changbei Ma
- School of Life Sciences, Central South University, Changsha 410013, China.
| | - Zhiyi Deng
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Ning Fang
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, United States
| | - Zhenwei Tang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Xingxing Zhu
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410081, China
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21
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Lee CY, Kang KS, Park KS, Park HG. Determination of RNase H activity via real-time monitoring of target-triggered rolling circle amplification. Mikrochim Acta 2017; 185:53. [DOI: 10.1007/s00604-017-2610-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/04/2017] [Indexed: 01/02/2023]
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22
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Lee CY, Jang H, Park KS, Park HG. A label-free and enzyme-free signal amplification strategy for a sensitive RNase H activity assay. NANOSCALE 2017; 9:16149-16153. [PMID: 28980684 DOI: 10.1039/c7nr04060a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We herein describe a label-free and enzyme-free signal amplification strategy for the sensitive determination of ribonuclease H (RNase H) activity, which relies on the target-triggered catalytic hairpin assembly (CHA) in conjunction with a G-quadruplex specific fluorescent binder, N-methyl mesoporphyrin IX (NMM). In the absence of RNase H, the RNA/DNA duplex serving as a substrate for RNase H cannot initiate the execution of CHA that produces G-quadruplexes; so NMM shows a low fluorescence signal. In contrast, the presence of RNase H that degrades RNA in the RNA/DNA duplex releases DNA designed to function as the catalyst for CHA. This consequently promotes the efficient CHA and generates a large number of G-quadruplexes with a significantly enhanced fluorescence signal from NMM. Based on this label-free and enzyme-free signal amplification strategy, we successfully determined the RNase H activity with a detection limit of 0.037 U mL-1 and screened potential RNase H inhibitors. Our results suggest that the developed system is a promising platform for a cost-effective, sensitive enzyme activity assay and inhibitor screening.
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Affiliation(s)
- Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-338, Republic of Korea.
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23
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Wang L, Zhou H, Liu B, Zhao C, Fan J, Wang W, Tong C. Fluorescence Assay for Ribonuclease H Based on Nonlabeled Substrate and DNAzyme Assisted Cascade Amplification. Anal Chem 2017; 89:11014-11020. [DOI: 10.1021/acs.analchem.7b02899] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lanbo Wang
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Hongyan Zhou
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Bin Liu
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Chuan Zhao
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Jialong Fan
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Wei Wang
- TCM
and Ethnomedicine Innovation and Development Laboratory, Sino-Luxemburg
TCM Research Center, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Chunyi Tong
- College
of Biology, Hunan Province Key Laboratory of Plant Functional Genomics
and Developmental Regulation, State Key Laboratory of Chem/Biosensing
and Chemometrics, Hunan University, Changsha, Hunan 410082, China
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24
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Biswas S, Bhowmik S, Rasale DB, Das AK. A Highly Selective Colorimetric Detection of Hg(II) via Enzymatic Dephosphorylation Reaction. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/masy.201600069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sagar Biswas
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 452020 India
| | - Soumitra Bhowmik
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 452020 India
| | - Dnyaneshwar B. Rasale
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 452020 India
| | - Apurba K. Das
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 452020 India
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25
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Zhang J, Zhang CL, Yu SH. Tuning Gold Nanoparticle Aggregation through the Inhibition of Acid Phosphatase Bioactivity: A Plasmonic Sensor for Light-Up Visual Detection of Arsenate (AsV
). Chempluschem 2016; 81:1147-1151. [DOI: 10.1002/cplu.201600355] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Jia Zhang
- Division of Nanomaterials and Chemistry; Hefei National Laboratory for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Chuan-Ling Zhang
- School of Chemistry and Chemical Engineering; Hefei University of Technology; Hefei Anhui 230029 China
| | - Shu-Hong Yu
- Division of Nanomaterials and Chemistry; Hefei National Laboratory for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 China
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26
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Lu L, Wang W, Yang C, Kang TS, Leung CH, Ma DL. Iridium(iii) complexes with 1,10-phenanthroline-based N^N ligands as highly selective luminescent G-quadruplex probes and application for switch-on ribonuclease H detection. J Mater Chem B 2016; 4:6791-6796. [DOI: 10.1039/c6tb02316a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A study was performed to investigate the relationship between molecular structure and G4 sensing ability for a series of iridium(iii) complexes. The complex7was used to construct a G4-based assay for RNase H.
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Affiliation(s)
- Lihua Lu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- Department of Chemistry
| | - Wanhe Wang
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong
- China
| | - Chao Yang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Tian-Shu Kang
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao
- China
| | - Dik-Lung Ma
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong
- China
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27
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Deng W, Goldys EM. Chemical sensing with nanoparticles as optical reporters: from noble metal nanoparticles to quantum dots and upconverting nanoparticles. Analyst 2015; 139:5321-34. [PMID: 25170528 DOI: 10.1039/c4an01272k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A wide variety of biological and medical analyses are based on the use of optical signals to report specific molecular events. Thanks to advances in nanotechnology, various nanostructures have been extensively used as optical reporters in bio- and chemical assays. This review describes recent progress in chemical sensing using noble metal nanoparticles (gold and silver), quantum dots and upconverting nanoparticles. It provides insights into various nanoparticle-based sensing strategies including fluorescence/luminescence resonance energy transfer nanoprobes as well as activatable probes sensitive to specific changes in the biological environment. Finally we list some research challenges to be overcome in order to accelerate the development of applications of nanoparticle bio- and chemical sensors.
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Affiliation(s)
- Wei Deng
- Centre for Nanoscale BioPhotonics, Macquarie University, North Ryde, 2109, NSW, Australia.
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28
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Aliofkhazraei M, Pedrosa P, Carlos FF, Veigas B, Baptista PV. Gold Nanoparticles for DNA/RNA-Based Diagnostics. HANDBOOK OF NANOPARTICLES 2015. [PMCID: PMC7123017 DOI: 10.1007/978-3-319-15338-4_31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The remarkable physicochemical properties of gold nanoparticles (AuNPs) have prompted development in exploring biomolecular interactions with AuNPs-containing systems, pursuing biomedical applications in diagnostics. Among these applications, AuNPs have been remarkably useful for the development of DNA/RNA detection and characterization systems for diagnostics, including systems suitable for point of need. Here, emphasis will be on available molecular detection schemes of relevant pathogens and their molecular characterization, genomic sequences associated with medical conditions (including cancer), mutation and polymorphism identification, and the quantification of gene expression.
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29
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Zhu Y, Cai Y, Zhu Y, Zheng L, Ding J, Quan Y, Wang L, Qi B. Highly sensitive colorimetric sensor for Hg2+ detection based on cationic polymer/DNA interaction. Biosens Bioelectron 2015; 69:174-8. [DOI: 10.1016/j.bios.2015.02.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 01/13/2023]
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30
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Valizadeh A. Nanomaterials and Optical Diagnosis of HIV. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1383-90. [PMID: 26099718 DOI: 10.3109/21691401.2015.1052469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The investigators had previously shown that the risk of AIDS/HIV-related illness and transmission reduced (by 96%) with early antiretroviral treatment. Nanomaterials could be applied in early diagnosis of HIV by improving the ability to detect serum biomarkers of the blood-borne infectious diseases, with low sample volume, rapidity, and more sensitivity than currently available FDA-approved methods such as ELISA, particle agglutination assay, and Western Blotting assay. We have demonstrated several experimental studies for optical HIV diagnosis based on nanomaterials in three categories (e.g., the fluorescence-, the SPR-, and the SERS- based biosensors), and have explained each assay.
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Affiliation(s)
- Alireza Valizadeh
- a Department of Medical Nanotechnology , Faculty of Advanced Medical Sciences & Student Research Committee, Tabriz, University of Medical Sciences , Tabriz , Iran.,b Department of Medical Nanotechnology , School of Advanced Technologies inMedicine, Tehran University of Medical Sciences , Tehran , Iran
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31
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A hybrid chimeric system for versatile and ultra-sensitive RNase detection. Sci Rep 2015; 5:9558. [PMID: 25828752 PMCID: PMC4381352 DOI: 10.1038/srep09558] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/11/2015] [Indexed: 12/21/2022] Open
Abstract
We developed a new versatile strategy that allows the detection of several classes of RNases (i.e., targeting ss- or ds-RNA, DNA/RNA hetero-hybrid or junctions) with higher sensitivity than existing assays. Our two-step approach consists of a DNA-RNA-DNA chimeric Hairpin Probe (cHP) conjugated to magnetic microparticles and containing a DNAzyme sequence in its terminal region, and molecular beacons for fluorescence signal generation. In the first step, the digestion of the RNA portion of the cHP sequences in presence of RNases leads to the release of multiple copies of the DNAzyme in solution. Then, after magnetic washing, each DNAzyme molecule elicits the catalytic cleavage of numerous molecular beacons, providing a strong amplification of the overall sensitivity of the assay. We successfully applied our approach to detect very low concentrations of RNase A, E. coli RNase I, and RNase H. Furthermore, we analyzed the effect of two antibiotics (penicillin and streptomycin) on RNase H activity, demonstrating the applicability of our strategy for the screening of inhibitors. Finally, we exploited our system to detect RNase activity directly in crude biological samples (i.e., blood and saliva) and in cell culture medium, highlighting its suitability as cheap and sensitive tool for the detection of RNase levels.
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Li N, Su X, Lu Y. Nanomaterial-based biosensors using dual transducing elements for solution phase detection. Analyst 2015; 140:2916-43. [PMID: 25763412 DOI: 10.1039/c4an02376e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Biosensors incorporating nanomaterials have demonstrated superior performance compared to their conventional counterparts. Most reported sensors use nanomaterials as a single transducer of signals, while biosensor designs using dual transducing elements have emerged as new approaches to further improve overall sensing performance. This review focuses on recent developments in nanomaterial-based biosensors using dual transducing elements for solution phase detection. The review begins with a brief introduction of the commonly used nanomaterial transducers suitable for designing dual element sensors, including quantum dots, metal nanoparticles, upconversion nanoparticles, graphene, graphene oxide, carbon nanotubes, and carbon nanodots. This is followed by the presentation of the four basic design principles, namely Förster Resonance Energy Transfer (FRET), Amplified Fluorescence Polarization (AFP), Bio-barcode Assay (BCA) and Chemiluminescence (CL), involving either two kinds of nanomaterials, or one nanomaterial and an organic luminescent agent (e.g. organic dyes, luminescent polymers) as dual transducers. Biomolecular and chemical analytes or biological interactions are detected by their control of the assembly and disassembly of the two transducing elements that change the distance between them, the size of the fluorophore-containing composite, or the catalytic properties of the nanomaterial transducers, among other property changes. Comparative discussions on their respective design rules and overall performances are presented afterwards. Compared with the single transducer biosensor design, such a dual-transducer configuration exhibits much enhanced flexibility and design versatility, allowing biosensors to be more specifically devised for various purposes. The review ends by highlighting some of the further development opportunities in this field.
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Affiliation(s)
- Ning Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, 117602 Singapore.
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33
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Zeng S, Huang H, Huang Y, Liu X, Qin J, Zhao S, Chen ZF, Liang H. Label-free and amplified colorimetric assay of ribonuclease H activity and inhibition based on a novel enzyme-responsive DNAzyme cascade. RSC Adv 2015. [DOI: 10.1039/c5ra05712d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A simple, label-free and amplified colorimetric assay strategy based on a novel enzyme-responsive DNAzyme cascade is developed for assay of ribonuclease H activity and inhibition. This assay exhibits high sensitivity and selectivity.
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Affiliation(s)
- Shulan Zeng
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
| | - Huakui Huang
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
- College of Chemistry and Pharmacy
| | - Yong Huang
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
- College of Chemistry and Pharmacy
| | - Xiaoqian Liu
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Jian Qin
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Shulin Zhao
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
- College of Chemistry and Pharmacy
| | - Zhen-Feng Chen
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
| | - Hong Liang
- Ministry of Education Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Guangxi Normal University
- Guilin
- China
- College of Chemistry and Pharmacy
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Zhang Y, Zhang YJ, Xia XD, Hou XQ, Feng CT, Wang JX, Deng L. A quantitative colorimetric assay of H2O2 and glucose using silver nanoparticles induced by H2O2 and UV. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.07.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Rasale DB, Maity I, Das AK. Colorimetric Enzyme Sensing Assays via In Situ Synthesis of Gold Nanoparticles. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0606-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Gao T, Ning L, Li C, Wang H, Li G. A colorimetric method for protein assay via exonuclease III-assisted signal attenuation strategy and specific DNA-protein interaction. Anal Chim Acta 2013; 788:171-6. [PMID: 23845497 DOI: 10.1016/j.aca.2013.06.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 06/16/2013] [Accepted: 06/19/2013] [Indexed: 01/01/2023]
Abstract
Taking advantage of exonuclease III (Exo III)-assisted signal attenuation strategy and the protection of DNA from Exo III-mediated digestion by specific DNA-protein interaction, a colorimetric method is proposed in this paper for protein assay. Specifically, in the absence of target protein, Exo III-assisted signal attenuation can be achieved by digesting the report DNA in a complex formed by the hybridization of a report DNA and a probe DNA. Nevertheless, in the presence of target protein, the binding of the analyte to the probe DNA will inhibit the Exo III-assisted nucleotides cleavage, so that cyclic signal attenuation is blocked. Therefore, a bridge can be established between the concentration of target protein and the degree of the attenuation of the obtained signal, and the relationship can be shown by the surface plasmon changes caused by the report DNA-induced aggregation of DNA-modified gold nanoparticles (AuNPs). Our method can also have considerable sensitivity and selectivity, which has been demonstrated by the assay of human α-thrombin. Furthermore, by simply changing the sequence of the probe DNA, we can expand the application of our method to not only aptamer binding proteins but also DNA binding proteins, thus we have also used this method to analyze a specific serological marker for systemic lupus erythematosus (SLE) in this study. With a broad detection range of 1.3-133 nM and a detection limit of 0.61 nM (S/N=3), it may hold great promise for clinical application.
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Affiliation(s)
- Tao Gao
- Department of Biochemistry and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, PR China
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37
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Du J, Jiang L, Shao Q, Liu X, Marks RS, Ma J, Chen X. Colorimetric detection of mercury ions based on plasmonic nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:1467-1481. [PMID: 22961942 DOI: 10.1002/smll.201200811] [Citation(s) in RCA: 169] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Indexed: 06/01/2023]
Abstract
The development of rapid, specific, cost-effective, and robust tools in monitoring Hg(2+) levels in both environmental and biological samples is of utmost importance due to the severe mercury toxicity to humans. A number of techniques exist, but the colorimetric assay, which is reviewed herein, is shown to be a possible tool in monitoring the level of mercury. These assays allow transforming target sensing events into color changes, which have applicable potential for in-the-field application through naked-eye detection. Specifically, plasmonic nanoparticle-based colorimetric assay exhibits a much better propensity for identifying various targets in terms of sensitivity, solubility, and stability compared to commonly used organic chromophores. In this review, recent progress in the development of gold nanoparticle-based colorimetric assays for Hg(2+) is summarized, with a particular emphasis on examples of functionalized gold nanoparticle systems with oligonucleotides, oligopeptides, and functional molecules. Besides highlighting the current design principle for plasmonic nanoparticle-based colorimetric probes, the discussions on challenges and the prospect of next-generation probes for in-the-field applications are also presented.
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Affiliation(s)
- Jianjun Du
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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38
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Wang J, Qu X. Recent progress in nanosensors for sensitive detection of biomolecules. NANOSCALE 2013; 5:3589-3600. [PMID: 23529571 DOI: 10.1039/c3nr00084b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Developing sensitive, rapid, and cost-effective methods for detection of biomolecules is important for both clinical and numerous non-clinical applications. During the last two decades, functional nanomaterials with unique physical and chemical properties have provided significant advantages for biological detection. In this feature article, we introduce recent progress in nanobiosensor development by exploiting the optical, electrical and catalytic properties of a range of nanomaterials, with a focus on gold nanoparticles, carbon nanotubes, graphene and carbon dots. In addition, the perspectives on future opportunities and unsolved challenges are also discussed.
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Affiliation(s)
- Jiasi Wang
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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39
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Colorimetric assay of matrix metalloproteinase activity based on metal-induced self-assembly of carboxy gold nanoparticles. Biosens Bioelectron 2013; 41:833-9. [DOI: 10.1016/j.bios.2012.10.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 10/06/2012] [Accepted: 10/08/2012] [Indexed: 12/27/2022]
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40
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Tan YN, Lee KH, Su X. A study of DNA design dependency of segmented DNA-induced gold nanoparticle aggregation towards versatile bioassay development. RSC Adv 2013. [DOI: 10.1039/c3ra44661a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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41
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Su Q, Han S, Xie X, Zhu H, Chen H, Chen CK, Liu RS, Chen X, Wang F, Liu X. The effect of surface coating on energy migration-mediated upconversion. J Am Chem Soc 2012; 134:20849-57. [PMID: 23210614 DOI: 10.1021/ja3111048] [Citation(s) in RCA: 242] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lanthanide-doped upconversion nanoparticles have been the focus of a growing body of investigation because of their promising applications ranging from data storage to biological imaging and drug delivery. Here we present the rational design, synthesis, and characterization of a new class of core-shell upconversion nanoparticles displaying unprecedented optical properties. Specifically, we show that the epitaxial growth of an optically inert NaYF(4) layer around a lanthanide-doped NaGdF(4)@NaGdF(4) core-shell nanoparticle effectively prevents surface quenching of excitation energy. At room temperature, the energy migrates over Gd sublattices and is adequately trapped by the activator ions embedded in host lattices. Importantly, the NaYF(4) shell-coating strategy gives access to tunable upconversion emissions from a variety of activators (Dy(3+), Sm(3+), Tb(3+), and Eu(3+)) doped at very low concentrations (down to 1 mol %). Our mechanistic investigations make possible, for the first time, the realization of efficient emissions from Tb(3+) and Eu(3+) activators that are doped homogeneously with Yb(3+)/Tm(3+) ions. The advances on these luminescent nanomaterials offer exciting opportunities for important biological and energy applications.
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Affiliation(s)
- Qianqian Su
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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42
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Zhou G, Liu Y, Luo M, Xu Q, Ji X, He Z. Peptide-capped gold nanoparticle for colorimetric immunoassay of conjugated abscisic acid. ACS APPLIED MATERIALS & INTERFACES 2012; 4:5010-5015. [PMID: 22906007 DOI: 10.1021/am301380q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The pentapeptide Cys-Ala-Leu-Asn-Asn (CALNN) has been proved to be a powerful tool to stabilize the AuNPs. These CALNN-capped AuNPs have been used to develop various bioanalysis platforms. In this paper, the CALNN-capped AuNPs are proved to be a robust tool for aggregation-based colorimetric immunoassays as well. A colorimetric immunoassay strategy based upon the antibody-induced assembly of functionalized AuNPs for Abscisic Acid glucose ester (ABA-GE) determination has been developed. The ABA-functionalized AuNPs aggregate in the presence of specific antibody, accompanied by a color change of the solution. The color change is competitively inhibited by ABA-GE. The interparticle distance in aggregates is small due to the thin peptide layer on the AuNPs surface, and it is determined by the "Y" shape antibody linker as well. As a result of that, an obvious color change in the immunoassays is observed. Under the optimized conditions, a linear response range from 5 nM to 10 μM for ABA-GE determination is obtained, and the limit of detection (LOD) is evaluated to be 2.2 nM. This method is simple, homogeneous, and has potential for visual detection of ABA-GE.
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Affiliation(s)
- Guohua Zhou
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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Xie X, Xu W, Liu X. Improving colorimetric assays through protein enzyme-assisted gold nanoparticle amplification. Acc Chem Res 2012; 45:1511-20. [PMID: 22786666 DOI: 10.1021/ar300044j] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The discovery of the DNA-mediated assembly of gold nanoparticles was a great moment in the history of science; this understanding and chemical control enabled the rational design of functional nanomaterials as novel probes in biodetection. In contrast with conventional probes such as organic dyes, gold nanoparticles exhibit high photostability and unique size-dependent optical properties. Because of their high extinction coefficients and strong distance dependent optical properties, these nanoparticles have emerged over the past decade as a promising platform for rapid, highly sensitive colorimetric assays that allow for the visual detection of low concentrations of metal ions, small molecules, and biomacromolecules. These discoveries have deepened our knowledge of biological phenomena and facilitated the development of many new diagnostic and therapeutic tools. Despite these many advances and continued research efforts, current nanoparticle-based colorimetric detection systems still suffer from several drawbacks, such as limited sensitivity and selectivity. This Account describes the recent development of colorimetric assays based on protein enzyme-assisted gold nanoparticle amplification. The benefits of such detection systems include significantly improved detection sensitivity and selectivity. First, we discuss the general design of enzyme-modified nanoparticle systems in colorimetric assays. We show that a quantitative understanding of the unique properties of different enzymes is paramount for effective biological assays. We then examine the assays for nucleic acid detection based on different types of enzymes, including endonucleases, ligases, and polymerases. For each of these assays, we identify the underlying principles that contribute to the enhanced detection capability of nanoparticle systems and illustrate them with selected examples. Furthermore, we demonstrate that the combination of gold nanoparticles and specific enzymes can probe enzyme dynamics and function with high specificity, offering substantial advantages in both sensitivity and specificity over conventional detection methods. The screening of nuclease, methyltransferase, protease, and kinase activities can be colorimetrically performed in a straightforward manner. Finally, we discuss examples of colorimetric assays for metal ions and small molecules that constitute important advances toward visual monitoring of enzyme catalytic functions and gene expression. Although these enzyme-assisted assay methods hold great promise for myriad applications in biomedicine and bioimaging, the application of the described techniques in vivo faces formidable challenges. In addition, researchers do not fully understand the interactions of gold nanoparticles with enzyme molecules. This understanding will require the development of new techniques to probe enzyme substrate dynamics at the particle interface with higher spatial resolution and chemical specificity.
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Affiliation(s)
- Xiaoji Xie
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
| | - Wei Xu
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, Singapore, and Institute of Material Research and Engineering, Singapore
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Fan C, He S, Liu G, Wang L, Song S. A portable and power-free microfluidic device for rapid and sensitive lead (Pb2+) detection. SENSORS 2012; 12:9467-75. [PMID: 23012553 PMCID: PMC3444111 DOI: 10.3390/s120709467] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 06/06/2012] [Accepted: 07/02/2012] [Indexed: 01/02/2023]
Abstract
A portable and power-free microfluidic device was designed for rapid and sensitive detection of lead (Pb2+). 11-mercaptoundecanoic acid (MUA)-functionalized gold nanoparticles (MUA-AuNPs) aggregated in the presence of Pb2+ for the chelation mechanism. When we performed this analysis on a polydimethylsiloxane (PDMS) microfluidic chip, the aggregations deposited onto the surface of chip and formed dark lines along the laminar flows in the zigzag microchannels. This visual result can be observed by the naked eye through a microscope or just a drop of water as a magnifier. Ten μM Pb2+ was successfully detected.
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Affiliation(s)
- Chunhui Fan
- Laboratory of Advanced Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China; E-Mail:
- Laboratory of Physical Biology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; E-Mail:
| | - Shijiang He
- Laboratory of Physical Biology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; E-Mail:
| | - Gang Liu
- Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China; E-Mail:
| | - Lianhui Wang
- Laboratory of Advanced Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (L.W.); (S.S.); Tel.: +86-21-3919-4065 (S.S.); Fax: +86-21-3919-4702 (S.S.)
| | - Shiping Song
- Laboratory of Physical Biology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (L.W.); (S.S.); Tel.: +86-21-3919-4065 (S.S.); Fax: +86-21-3919-4702 (S.S.)
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Xu W, Xie X, Li D, Yang Z, Li T, Liu X. Ultrasensitive colorimetric DNA detection using a combination of rolling circle amplification and nicking endonuclease-assisted nanoparticle amplification (NEANA). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:1846-50. [PMID: 22461378 DOI: 10.1002/smll.201200263] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Indexed: 05/18/2023]
Abstract
A combination of rolling circle amplification and nicking endonuclease-assisted nanoparticle amplification (NEANA) is used for the rapid, colorimetric detection of DNA. The integration of rolling circle amplification into the NEANA approach allows for detection of oligonucleotides with arbitrary sequences at ultralow concentrations.
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Affiliation(s)
- Wei Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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46
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Wang J, Wu L, Ren J, Qu X. Visualizing human telomerase activity with primer-modified Au nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:259-264. [PMID: 22083963 DOI: 10.1002/smll.201101938] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Indexed: 05/31/2023]
Abstract
Telomerase is over-expressed in over 85% of all known human tumors. This renders the enzyme a valuable biomarker for cancer diagnosis and an important therapeutic target. The most widely used telomeric repeat amplification protocol (TRAP) assay has been questioned for telomerase detection. It is reported that human telomerase activity can be visualized by using primer-modified Au nanoparticles. The working principle is based on the elongated primers conjugated to the gold nanoparticle (AuNP) surface, which can fold into a G-quadruplex to protect the AuNPs from the aggregation. The developed simple and sensitive colorimetric assay can measure telomerase activity down to 1 HeLa cell µL(-1). More importantly, this assay can be easily extended to high-throughput and automatic format. The AuNP-TS method is PCR-free and therefore avoids the amplification-related errors and becomes more reliable to evaluate telomerase activity. This assay has also been used for initial screening of telomerase inhibitors as anticancer drug agents.
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Affiliation(s)
- Jiasi Wang
- Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Laboratory of Chemical Biology, Graduate School of the Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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Wang H, Xu W, Zhang H, Li D, Yang Z, Xie X, Li T, Liu X. EcoRI-modified gold nanoparticles for dual-mode colorimetric detection of magnesium and pyrophosphate ions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1987-1992. [PMID: 21671433 DOI: 10.1002/smll.201100470] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/11/2011] [Indexed: 05/30/2023]
Affiliation(s)
- Hongbo Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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