1
|
Abdulhafez Hamad A, Saad Al-Farhan B, El Hamd MA, Abdelrahman KS, Soltan OM, Abdel-Aal MAA, Fouad A, Mahdi WA, Alshehri S, Soltan MK. Utility of Cilefa Pink B, a foodstuff dye as a fluoro-substrate in the devising of the first facile green Molecular-mass-Related Fluorescence Sensor for quantifying amlodipine in batched material and dosage forms; content uniformity evaluation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123744. [PMID: 38157690 DOI: 10.1016/j.saa.2023.123744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024]
Abstract
This study introduces the first and unique Molecular-mass-Related Fluorescence Sensor as the first fluorimetric strategy for determining amlodipine. An environmentally friendly, single-step, and direct spectrofluorimetric approach was utilized to evaluate the analyte. In an acidic setting, combining the amlodipine medication and the fluorescent dye Cilefa Pink B generated an instantaneous ultra-fluorescent product. An increase in dye response after adding amlodipine was proportional to the molecular weight of the generated complex, as measured at 329 nm. was the idea ofthe applied fluorimetric analysis. The complexing process increased the molecular mass from 879.86 to 1288.739 g mol-1. The medication's range of 0.050-1.00 µg mL-1 is directly correlated with this molecular massenlargement. The ideal settings for the changeable parameters of the system were established through an analysis of the response of the amlodipine-Cilefa Pink B system. Furthermore, the developed sensor complied with ICH (International Council for Harmonization) standards. The sensitivity limits were 0.0139 µg mL-1 (for the detection limit, LOD) and 0.042 µg mL-1 (for the quantification limit, LOQ). Additionally, this method effectively recovered the drug in its original and therapeutic dosage forms. Finally, the proposed process's environmental impact was also assessed through different modern greenness evaluation tools.
Collapse
Affiliation(s)
- Ahmed Abdulhafez Hamad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
| | - Badriah Saad Al-Farhan
- Chemistry Department, Faculty of Science, King Khalid University, Abha 61421, Saudi Arabia
| | - Mohamed A El Hamd
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, South Valley University, Qena 83523, Egypt.
| | - Kamal S Abdelrahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Osama M Soltan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Mohamed A A Abdel-Aal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Ali Fouad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Wael A Mahdi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Moustafa K Soltan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; Oman College of Health Sciences, Muscat, Oman
| |
Collapse
|
2
|
Abstract
DNA has excellent molecular recognition properties. At the same time, DNA has a programmable structure, high stability, and can be easily modified, making DNA attractive for biosensor design. To convert DNA hybridization or aptamer binding events to physically detectable signals, various nanomaterials have been extensively exploited to take advantage of their optical and surface properties. A popular sensing scheme is through the adsorption of a fluorescently-labeled DNA probe, where detection is achieved by target-induced probe desorption and fluorescence recovery. Another method is to use DNA to protect the colloidal stability of nanomaterials, where subsequent target binding can decrease the protection ability and induce aggregation; this method has mainly been used for gold nanoparticles. This Perspective summarizes some of our work in examining the sensing mechanisms, and we articulate the importance of the understanding of DNA/surface and target/surface interactions for the development of practical DNA-based biosensors.
Collapse
Affiliation(s)
- Stefen Stangherlin
- Department of Chemistry, Waterloo Institute for Nanotechnology, Waterloo, ON, N2L 3G1, Canada.
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, Waterloo, ON, N2L 3G1, Canada.
| |
Collapse
|
3
|
He Y, Liu J, Duan Y, Yuan X, Ma L, Dhar R, Zheng Y. A critical review of on-site inorganic arsenic screening methods. J Environ Sci (China) 2023; 125:453-469. [PMID: 36375928 DOI: 10.1016/j.jes.2022.01.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 06/16/2023]
Abstract
Approximately 94 to 220 million people worldwide are at risk of drinking well water containing arsenic > 10 µg/L, the WHO guideline value. To identify non-compliant domestic wells, assess health risks and reduce exposure, accurate and rapid on-site inorganic arsenic screening methods are desirable because all domestic wells worldwide need to be tested. Here, the principles, advantages and limitations of commonly used colorimetry, electrochemistry, and biosensing methods are critically reviewed, with the performance compared with laboratory-based benchmark methods. Most commercial kits are based on the classic Gutzeit reaction. Despite being semi-quantitative, the more recent and more expensive products display improved and acceptable accuracy and shorter testing time (∼10 min). Carried out by trained professionals, electrochemical methods are also feasible for on-site analysis, although miniaturization is desirable yet challenging. Biosensing using whole bacterial cells or bio-engineered materials such as aptamers is promising, if incorporated with function specific nanomaterials and biomaterials. Since arsenic is frequently found as arsenite in reducing groundwater and subject to oxidation during sampling, transportation and storage, on-site separation and sample preservation are feasible but the specific methods should be chosen based on sample matrix and tested before use. To eliminate arsenic exposure among hundreds of millions of mostly rural residents worldwide, we call for concerted efforts in research community and regulatory authority to develop accurate, rapid, and affordable tests for on-site screening and monitoring of arsenic in drinking water. Access to affordable testing will benefit people who are socioeconomically disadvantaged.
Collapse
Affiliation(s)
- Yi He
- Department of Sciences, John Jay College and the Graduate Center, The City University of New York, NY 10019, USA
| | - Jingyu Liu
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, QLD 4102, Australia
| | - Yanhua Duan
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaofei Yuan
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Lulu Ma
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ratan Dhar
- Department of Earth and Physical Sciences, York College, The City University of New York, NY 11451, USA
| | - Yan Zheng
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| |
Collapse
|
4
|
Sarkar DJ, Behera BK, Parida PK, Aralappanavar VK, Mondal S, Dei J, Das BK, Mukherjee S, Pal S, Weerathunge P, Ramanathan R, Bansal V. Aptamer-based NanoBioSensors for seafood safety. Biosens Bioelectron 2023; 219:114771. [PMID: 36274429 DOI: 10.1016/j.bios.2022.114771] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/16/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
Chemical and biological contaminants are of primary concern in ensuring seafood safety. Rapid detection of such contaminants is needed to keep us safe from being affected. For over three decades, immunoassay (IA) technology has been used for the detection of contaminants in seafood products. However, limitations inherent to antibody generation against small molecular targets that cannot elicit an immune response, along with the instability of antibodies under ambient conditions greatly limit their wider application for developing robust detection and monitoring tools, particularly for non-biomedical applications. As an alternative, aptamer-based biosensors (aptasensors) have emerged as a powerful yet robust analytical tool for the detection of a wide range of analytes. Due to the high specificity of aptamers in recognising targets ranging from small molecules to large proteins and even whole cells, these have been suggested to be viable molecular recognition elements (MREs) in the development of new diagnostic and biosensing tools for detecting a wide range of contaminants including heavy metals, antibiotics, pesticides, pathogens and biotoxins. In this review, we discuss the recent progress made in the field of aptasensors for detection of contaminants in seafood products with a view of effectively managing their potential human health hazards. A critical outlook is also provided to facilitate translation of aptasensors from academic laboratories to the mainstream seafood industry and consumer applications.
Collapse
Affiliation(s)
- Dhruba Jyoti Sarkar
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India.
| | - Bijay Kumar Behera
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India.
| | - Pranaya Kumar Parida
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Vijay Kumar Aralappanavar
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Shirsak Mondal
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Jyotsna Dei
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Basanta Kumar Das
- Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120, West Bengal, India
| | - Subhankar Mukherjee
- Centre for Development of Advance Computing, Kolkata, 700091, West Bengal, India
| | - Souvik Pal
- Centre for Development of Advance Computing, Kolkata, 700091, West Bengal, India
| | - Pabudi Weerathunge
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Rajesh Ramanathan
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Vipul Bansal
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC, 3000, Australia.
| |
Collapse
|
5
|
Hmila I, Sudhakaran IP, Ghanem SS, Vaikath NN, Poggiolini I, Abdesselem H, El-Agnaf OMA. Inhibition of α-Synuclein Seeding-Dependent Aggregation by ssDNA Aptamers Specific to C-Terminally Truncated α-Synuclein Fibrils. ACS Chem Neurosci 2022; 13:3330-3341. [PMID: 36348612 DOI: 10.1021/acschemneuro.2c00362] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Neuropathologically, Parkinson's disease (PD) and dementia with Lewy bodies (DLB) are characterized by the accumulation of insoluble aggregates of α-synuclein (α-syn) in the Lewy bodies (LBs). In addition to full-length α-syn fibrils, C-terminally truncated α-syn is also abundant in the LBs that acts as seeds and facilitates the aggregation of the full-length α-syn in vitro and in vivo and induces toxicity. Hence, identifying molecules that can inhibit the seeding activity of these truncated forms is of great importance. Here, we report the first in vitro selection of aptamers targeting the fibrillar forms of different C-terminally truncated α-syn using systematic evolution by an exponential enrichment method followed by quantitative high-throughput DNA sequencing. We identify a panel of aptamers that bound with high specificity to different truncated forms of α-syn fibrils with no cross-reactivity toward other amyloid fibrils. Interestingly, two of the aptamers (named Apt11 and Apt15) show higher affinity to most C-terminally truncated forms of α-syn fibrils with an evident inhibition of α-syn-seeded aggregation in vitro by Apt11. This inhibition is further confirmed by circular dichroism, Congo red binding assay, and electronic microscopy. Moreover, Apt11 is also found to reduce the insoluble phosphorylated form of α-syn at Ser-129 (pS129-α-syn) in the cell model and also can inhibit α-syn aggregation using RT-QuIC reactions seeded with brain homogenates extracted from patients affected by PD. The aptamers discovered in this study represent potential useful tools for research and diagnostics or therapy toward PD and DLB.
Collapse
Affiliation(s)
- Issam Hmila
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Indulekha P Sudhakaran
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Simona S Ghanem
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Nishant N Vaikath
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Ilaria Poggiolini
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Houari Abdesselem
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Omar M A El-Agnaf
- Neurological Disorder Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| |
Collapse
|
6
|
Xie X, Huang W, Shen G, Yu H, Wang L. Selection and colorimetric application of ssDNA aptamers against metamitron based on magnetic bead-SELEX. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3021-3032. [PMID: 35916160 DOI: 10.1039/d2ay00566b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metamitron (MTM) is a typical and widely used triazine herbicide in agricultural production. Its moderate toxicity and high residue in the environment have deleterious impacts on human health. The establishment of a rapid and efficient MTM detection method is of great significance. In this study, a magnetic-bead SELEX (systematic evolution of ligands by exponential enrichment) system was developed to select the MTM aptamers with high affinity and specificity. Through 10 rounds of screening, six candidate aptamers with the highest abundance were obtained by high-throughput sequencing. The homology, secondary structure, and affinity analyses were performed. The aptamer named MTM-6 was selected as the optimal aptamer with the dissociation constant (Kd) value of 16 nM. Then, a colorimetric detection method for MTM based on aptamer MTM-6 and the aggregation of gold nanoparticles (AuNPs) induced by NaCl was established with a linear range from 20 to 1000 nM (R = 0.9966) and a limit of detection (LOD) of 4.58 nM. The average recovery rate of MTM in the application of actual aqueous samples ranged from 95.40 to 107.83% with a relative standard deviation (RSD) from 1.11 to 3.48%. With considerable sensitivity and specificity, this colorimetric aptasensor is convenient and efficient, and shows bright application potential in MTM detection in aqueous samples.
Collapse
Affiliation(s)
- Xicheng Xie
- Shanghai Jiao Tong University, YunNan (Dali) Research Institute, Dali, Yunnan 671000, China.
| | - Weiwen Huang
- Shanghai Jiao Tong University, YunNan (Dali) Research Institute, Dali, Yunnan 671000, China.
| | - Guoqing Shen
- Shanghai Jiao Tong University, YunNan (Dali) Research Institute, Dali, Yunnan 671000, China.
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture, Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd, Shanghai 200240, China
- Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd, Shanghai 200240, China
| | - Hong Yu
- Shanghai Jiao Tong University, YunNan (Dali) Research Institute, Dali, Yunnan 671000, China.
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture, Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lumei Wang
- Shanghai Jiao Tong University, YunNan (Dali) Research Institute, Dali, Yunnan 671000, China.
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture, Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, 800 Dongchuan Rd, Shanghai 200240, China
- Shanghai Urban Forest Ecosystem Research Station, National Forestry and Grassland Administration, 800 Dongchuan Rd, Shanghai 200240, China
| |
Collapse
|
7
|
Dual-mode colorimetric determination of As(III) based on negatively-charged aptamer-mediated aggregation of positively-charged AuNPs. Anal Chim Acta 2022; 1221:340111. [DOI: 10.1016/j.aca.2022.340111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/19/2022] [Accepted: 06/20/2022] [Indexed: 11/18/2022]
|
8
|
Gahlaut A, Kharewal T, Verma N, Hooda V. Cell-free arsenic biosensors with applied nanomaterials: critical analysis. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:525. [PMID: 35737169 DOI: 10.1007/s10661-022-10127-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Arsenic is a ubiquitously found metalloid in our ecosystem because of natural and anthropogenic activities. People exposed to a higher level of arsenic become susceptible to several disorders, including cancer. According to current statistics, the population chronically exposed to arsenic has surpassed 200 million. Therefore, its detection in our environment is of great importance. There are many analytical techniques for the assessment of arsenic in different kinds of environmental samples. Among these techniques, the biosensor is considered a convenient platform and a widely applied analytical device for rapid qualitative and quantitative analysis in the field of environmental monitoring, food safety, and disease diagnosis. Today, there is a trend of including nanomaterials in sensors and biosensors because it empowers researchers to explore new arsenic detection methods and to enhance their analytical capabilities. In this review article, we summarized the latest developments in arsenic biosensors in particular with emphasis on the works based on cell-free approaches that are protein/enzyme-based, DNA-based, and aptamer-based utilizing various transduction platforms. In the meantime, we compared the capabilities that were related to these cell-free arsenic biosensors. This review article also highlights the development and application of novel nanomaterials for arsenic detection.
Collapse
Affiliation(s)
- Anjum Gahlaut
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Tannu Kharewal
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Neelam Verma
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Vikas Hooda
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
| |
Collapse
|
9
|
Gheitaran R, Afkhami A, Madrakian T. PVP-coated silver nanocubes as RRS probe for sensitive determination of Haloperidol in real samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:121025. [PMID: 35184030 DOI: 10.1016/j.saa.2022.121025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/02/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Polyol synthesis of silver nanocubes (Ag NCs) under dark conditions yielded nanoparticles with high uniformity and purity, as well as edge lengths of 42 nm with good stability and scattering cross-section. These nanoparticles were characterized by SEM, TEM, and Uv-vis spectroscopy. The presence of polyvinylpyrrolidone (PVP) as a capping agent on the surface of Ag NCs, as well as its satisfactory interaction level with Haloperidol (Hp) as an antipsychotic drug, has led to the use of these nanoparticles as Resonance RayleighScattering (RRS) probe to measure Hp. Indeed, Hp resulted in reducing the RRS signal of Ag NCs, and this change in RRS intensity was linear in the range of 10.0 to 800.0 µg L-1 of Hp. The limits of detection (LOD) and quantification (LOQ) were found to be 1.5 and 5.0 µg L-1, respectively. The influence of interfering species was studied, and it was found that the suggested method has good selectivity and can be used to monitor Hp in actual samples. As a result, this RRS probe operated well in determining Hp in pharmaceutical and human plasma samples with satisfactory recovery.
Collapse
Affiliation(s)
- Rasoul Gheitaran
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838695, Iran
| | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838695, Iran.
| | | |
Collapse
|
10
|
|
11
|
Yao D, Wang H, Lu S, Li C, Liang A, Wen G, Jiang Z. On-signal amplification of silver nanosol RRS/SERS aptamer detection of ultratrace urea by polystyrene nanosphere catalyst. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 265:120353. [PMID: 34492514 DOI: 10.1016/j.saa.2021.120353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
The catalytic amplification signal of polystyrene nanosphere (PN) is used to conveniently fabricate the resonance Rayleigh scattering (RRS)/surface-enhanced Raman scattering (SERS) dual-mode method to sensitively and selectively detect urea in food. PN has strong catalysis of the slow nanoreaction of citrate-Ag(I) to produce yellow silver nanoparticles (AgNP), which exhibit strong RRS effect and SERS effect with molecular probes. When aptamer (Apt) is present, the Apt is adsorbed on the PN surface, the catalysis is weakened, the AgNP is reduced, and the SERS/RRS signal is weakened. After adding urea to exhibit specific Aptamer reaction, the Apt is desorbed from the PN surface and the catalysis is restored. As urea increase, the desorbed PNs increase to produce more AgNPs indicator to increase SERS/RRS signal. The increase value △I of SERS/RRS is linearly to urea concentration. Therefore, a sensitive and selective SERS/RRS dual-mode method for urea is established based on aptamers-regulated the catalysis of PNs. This method is applied to the detection of urea in milk with satisfactory results. The relative standard deviation is 3.9-6.8% and the recovery rate is 94.5-102%.
Collapse
Affiliation(s)
- Dongmei Yao
- Application and Research Center of Agricultural Biotechnology of Hechi University, Hechi University, Yizhou 546300, China; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China.
| | - Haolin Wang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Shanshan Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Chongning Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China.
| |
Collapse
|
12
|
Huang HQ, Li YY, Chen SH, Liu ZG, Cui YM, Li HQ, Guo Z, Huang XJ. Noble-metal-free Fe 3O 4/Co 3S 4 nanosheets with oxygen vacancies as an efficient electrocatalyst for highly sensitive electrochemical detection of As(III). Anal Chim Acta 2022; 1189:339208. [PMID: 34815044 DOI: 10.1016/j.aca.2021.339208] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/20/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022]
Abstract
The electrochemical method for highly sensitive determination of arsenic(III) in real water samples with noble-metal-free nanomaterials is still a difficult but significant task. Here, an electrochemical sensor driven by noble-metal-free layered porous Fe3O4/Co3S4 nanosheets was successfully employed for As(III) analysis, which was prepared via a facile two-step method involves a hydrothermal treatment and a subsequent sulfurization process. As expected, the electrochemical detection of As(III) in 0.1 M HAc-NaAc (pH 6.0) by square wave anodic stripping voltammetry (SWASV) with a considerable sensitivity of 4.359 μA/μg·L-1 was obtained, which is better than the commonly used noble metals modified electrodes. Experimental and characterization results elucidate the enhancement of As(III) electrochemical performance could be attributed to its nano-porous structure, the presence of oxygen vacancies and strong synergetic coupling effects between Fe3O4 and Co3S4 species. Besides, the Fe3O4/Co3S4 modified screen printed carbon electrode (Fe3O4/Co3S4-SPCE) shows remarkable stability and repeatability, valuable anti-interference ability and could be used for detection in real water samples. Consequently, the results confirm that as-prepared porous Fe3O4/Co3S4 nanosheets is identified as a promising modifier to detect As(III) in real sample analysis.
Collapse
Affiliation(s)
- Hong-Qi Huang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, PR China
| | - Yong-Yu Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, And Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, PR China
| | - Zhong-Gang Liu
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, PR China
| | - Yu-Min Cui
- Anhui Provincical Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, 236037, PR China
| | - Hui-Quan Li
- Anhui Provincical Key Laboratory for Degradation and Monitoring of Pollution of the Environment, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, 236037, PR China.
| | - Zheng Guo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, PR China.
| | - Xing-Jiu Huang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, PR China; Key Laboratory of Environmental Optics and Technology, And Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, PR China.
| |
Collapse
|
13
|
Gao H, Wei X, Li M, Wang L, Wei T, Dai Z. Co-Quenching Effect between Lanthanum Metal-Organic Frameworks Luminophore and Crystal Violet for Enhanced Electrochemiluminescence Gene Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103424. [PMID: 34605175 DOI: 10.1002/smll.202103424] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/25/2021] [Indexed: 06/13/2023]
Abstract
Exploring new electrochemiluminescence (ECL) luminophores to construct high-efficiency sensing systems is always a hot direction for developing ECL sensors. Compared with other luminophores, metal-organic frameworks (MOFs) exhibit high mass transfer ability for accelerating the reactivity in its pore channels, which is conducive to improving the performance of ECL sensors. In this work, La3+ -BTC MOFs (LaMOFs) are prepared as the highly active reactor and novel ECL luminophore. On this basis, a novel co-quenching effect mechanism is proposed based on double-stranded DNA (dsDNA) triggered cooperation between LaMOFs and crystal violet (CV) molecules. Under the confined pore channels of LaMOFs, CV can play an important role as the photon-acceptor due to the matched absorption spectrum with the ECL spectrum of LaMOFs, and the electron-acceptor on account of its lowest unoccupied molecular orbital level. Based on the proposed co-quenching effect mechanism, a constructed ECL gene sensor shows good assay performance toward p53 gene in the detection range of 1 pm to 100 nm with a detection limit of 0.33 pm. The co-quenching effect integrating LaMOFs with CV is expected to be a versatile approach in the construction of ECL gene sensor, which has good prospect in expanding the application range of ECL technology.
Collapse
Affiliation(s)
- Huan Gao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Xuan Wei
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Meize Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Lei Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Tianxiang Wei
- School of Environment, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| |
Collapse
|
14
|
Yang Y, Tang Y, Wang C, Liu B, Wu Y. Selection and identification of a DNA aptamer for ultrasensitive and selective detection of λ-cyhalothrin residue in food. Anal Chim Acta 2021; 1179:338837. [PMID: 34535250 DOI: 10.1016/j.aca.2021.338837] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 11/30/2022]
Abstract
Pyrethroid pesticides residues will not only pollute the environment, but also cause high toxicity to the human body. It is significant to establish an efficient and accurate method for pyrethroid detection in food. Considering that the common biomolecules like antibody is complicated and easy to inactivate, it is urgent to find a new type of biomolecule to specifically recognize pyrethroid pesticides. This study proposed the Capture-SELEX strategy to firstly select λ-cyhalothrin aptamer by immobilizing random ssDNA library. High-throughput sequencing was performed on the enriched ssDNA library through multiple Capture-SELEX rounds. Comprehensively inspecting structural similarity and homology, six sequences were chosen from five families for further analysis. The results showed that the aptamer (named LCT-1) could specifically recognize λ-cyhalothrin with the strongest affinity (Kd = 50.64 ± 4.33 nmol L-1). Molecular docking results revealed that the binding sites between λ-cyhalothrin and LCT-1 aptamer are mainly related to the bases A-5, C-6, C-28, A-29, C-30, G-31 and G-32. The LCT-1 aptamer was truncated to a shorter sequence (named as LCT-1-39) by removing other irrelevant bases, and its Kd value was determined as (10.27 ± 1.33) nmol·L-1 by Microscale Thermophoresis (MST). Both LCT-1 and LCT-1-39 aptamers were employed as recognition molecules to establish the colorimetric aptasensors for λ-cyhalothrin detection, which displayed good repeatability and reproducibility. The detection limit of the aptasensors were individually calculated as 0.0197 μg ml-1 and 0.0186 μg ml-1, and their recovery rate of λ-cyhalothrin in pear and cucumber samples was in the range of 82.93-95.50%. This article provides a promising application for the detection of λ-cyhalothrin.
Collapse
Affiliation(s)
- Yuxia Yang
- School of Liquor and Food Engineering, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Yue Tang
- School of Liquor and Food Engineering, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Chunxiao Wang
- School of Liquor and Food Engineering, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Bangyan Liu
- School of Liquor and Food Engineering, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Yuangen Wu
- School of Liquor and Food Engineering, Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang, 550025, China; Key Laboratory of Wuliangye-flavor Liquor Solid-state Fermentation, China National Light Industry, Yibin, 644000, China.
| |
Collapse
|
15
|
Yin M, Xu D, Yu J, Huang S, Gopinath SCB, Kang P. Impedance spectroscopy for identifying tau protein to monitor anesthesia-based issues. Biotechnol Appl Biochem 2021; 69:1805-1811. [PMID: 34453342 DOI: 10.1002/bab.2246] [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: 06/04/2021] [Accepted: 08/23/2021] [Indexed: 11/10/2022]
Abstract
Anesthesia-related drugs cause various side effects and health-related illnesses after surgery. In particular, neurogenerative disorder is a common problem of anesthesia-related drugs. A patient gets anesthesia as a requirement of the preoperative evaluation to diagnose the medical illness, which is caused by anesthetic drug treatment. Different blood-based biomarkers help in identifying the changes appearing in patients after anesthesia treatment. Among them, tau protein is a sensitive biomarker of neurodegenerative diseases, and the fluctuations in tau proteins are highly associated with various diseases. Furthermore, researchers have found unstable levels of tau protein after the anesthesia process. The current research has focused on quantifying tau protein via impedance spectroscopy to identify the problems caused by anesthesia-related drugs. An impedance spectroscopy electrode was modified into a multiwalled carbon nanotube, and an amine-ended aptamer was then attached. This electrode surface was used to quantify the tau protein level and reached the detection limit of 1 fM. The determination coefficient was found to be y = 369.93x + 1144.9, with R2 = 0.9846 in the linear range of 1 fM-1 nM. Furthermore, tau protein spiked human serum was clearly identified on the immobilized aptamer surface, indicating the specific detection.
Collapse
Affiliation(s)
- Miaomiao Yin
- Department of Anesthesiology, Lianyungang Hospital Affiliated to Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Defang Xu
- Department of Anesthesiology, Tianjin Fourth Center Hospital, Tianjin, China
| | - Jinyong Yu
- Department of Anesthesiology, Zhucheng Maternal and Child Health Hospital, Weifang, Shandong, China
| | - Saisai Huang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Subash C B Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis, 01000, Malaysia.,Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau, Perlis, 02600, Malaysia
| | - Peipei Kang
- Department of Anesthesiology, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, China
| |
Collapse
|
16
|
Hu Y, Tang Y, Zeng H, Tao H, Wu Y. Two-dimensional layered WS 2 nanosheets as peroxidase mimetics in a colorimetric chemosensor for simple and rapid detection of acetone. NANOTECHNOLOGY 2021; 32:205503. [PMID: 33513596 DOI: 10.1088/1361-6528/abe154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) nanomaterials with catalytic activity have attracted considerable attention from researchers, but their application in the detection of hazardous substances needs to be further expanded. Herein, layered tungsten sulfide (WS2) nanosheets with peroxidase-mimicking activity were used to construct a colorimetric chemosensor for rapid detection of acetone. WS2 nanosheets can decompose H2O2 to generate hydroxyl radicals (·OH), which will further oxidize o-phenylenediamine (OPD) through hydrogen atom transfer (HAT) to form the yellow product 2,3-diaminophenazine. Acetone can block the HAT from OPD to ·OH, thus causing obvious inhibition of the peroxidase activity of WS2 nanosheets, making the solution appear pale yellow or even colorless. The investigation of catalytic kinetics indicates that the catalytic reaction consists of the 'ping pong' mechanism, and the regulatory effect of acetone on WS2 nanosheets is confirmed to be an irreversible inhibition. The chemosensor can easily distinguish a trace amount of acetone by the naked eye in less than 20 min, and has a limit of detection for acetone of as low as 3.08 mg l-1. The application in actual samples displays the accuracy and stability of the chemosensor, suggesting that such a method is promising for acetone detection.
Collapse
Affiliation(s)
- Yang Hu
- School of Liquor and Food Engineering; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
| | - Yue Tang
- School of Liquor and Food Engineering; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
| | - Hong Zeng
- School of Liquor and Food Engineering; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
| | - Han Tao
- School of Liquor and Food Engineering; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
| | - Yuangen Wu
- School of Liquor and Food Engineering; Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang 550025, People's Republic of China
| |
Collapse
|
17
|
Guo C, Li Z, Duan F, Zhang Z, Marchetti F, Du M. Semiconducting Cu xNi 3-x(hexahydroxytriphenylene) 2 framework for electrochemical aptasensing of C6 glioma cells and epidermal growth factor receptor. J Mater Chem B 2021; 8:9951-9960. [PMID: 33034309 DOI: 10.1039/d0tb01910k] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A 2D CuNi metal-organic framework (MOF) named CuxNi3-x(HHTP)2 was synthesized with 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) as the linker and was used as a sensitive scaffold to adsorb aptamer strands for the electrochemical detection of living C6 glioma cells and one of their biomarkers, epidermal growth factor receptor (EGFR). Different from conventional MOFs, the CuxNi3-x(HHTP)2 MOF comprises long-range delocalized electrons, a graphene-analog nanostructure, multiple metal states (Cu0/Cu+/Cu2+ and Ni2+/Ni3+), and abundant oxygen vacancies. With these features, the CuxNi3-x(HHTP)2 MOF anchored a large amount of C6 cell-targeted aptamer strands via coordination among metal centers, oligonucleotides, π-π stacking, and van der Waals force. The CuxNi3-x(HHTP)2-based cytosensor showed a low limit of detection (LOD) of 21 cells mL-1 toward C6 glioma cells within a wide range from 50 cells mL-1 to 1 × 105 cells mL-1. Moreover, the proposed aptasensor displayed high selectivity, good stability, acceptable reproducibility, and a low LOD of 0.72 fg mL-1 for detecting EGFR with the concentration ranging from 1 fg mL-1 to 1 ng mL-1. The aptasensor based on the CuxNi3-x(HHTP)2 MOF exhibited superior sensing performance over those based on its monometallic analogues such as Cu3(HHTP)2 MOF and Ni3(HHTP)2 MOF. Hence, this sensing strategy based on a bimetallic semiconducting MOF shows great potential for cancer diagnosis.
Collapse
Affiliation(s)
- Chuanpan Guo
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China. and School of Science and Technology, Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino, MC, Italy.
| | - Zhenzhen Li
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China.
| | - Fenghe Duan
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China. and School of Science and Technology, Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino, MC, Italy.
| | - Zhihong Zhang
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China.
| | - Fabio Marchetti
- School of Science and Technology, Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino, MC, Italy.
| | - Miao Du
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China.
| |
Collapse
|
18
|
A Cationic Surfactant-Decorated Liquid Crystal-Based Aptasensor for Label-Free Detection of Malathion Pesticides in Environmental Samples. BIOSENSORS-BASEL 2021; 11:bios11030092. [PMID: 33806721 PMCID: PMC8004806 DOI: 10.3390/bios11030092] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 11/25/2022]
Abstract
We report a liquid crystal (LC)-based aptasensor for the detection of malathion using a cationic surfactant-decorated LC interface. In this method, LCs displayed dark optical images when in contact with aqueous cetyltrimethylammonium bromide (CTAB) solution due to the formation of a self-assembled CTAB monolayer at the aqueous/LC interface, which induced the homeotropic orientation of LCs. With the addition of malathion aptamer, the homeotropic orientation of LCs changed to a planar one due to the interactions between CTAB and the aptamer, resulting in a bright optical image. In the presence of malathion, the formation of aptamer-malathion complexes caused a conformational change of the aptamers, thereby weakening the interactions between CTAB and the aptamers. Therefore, CTAB is free to induce a homeotropic ordering of the LCs, which corresponds to a dark optical image. The developed sensor exhibited high specificity for malathion determination and a low detection limit of 0.465 nM was achieved. Moreover, the proposed biosensor was successfully applied to detect malathion in tap water, river water, and apple samples. The proposed LC-based aptasensor is a simple, rapid, and convenient platform for label-free monitoring of malathion in environmental samples.
Collapse
|
19
|
Sun Y, Qi T, Jin Y, Liang L, Zhao J. A signal-on fluorescent aptasensor based on gold nanoparticles for kanamycin detection. RSC Adv 2021; 11:10054-10060. [PMID: 35423483 PMCID: PMC8695508 DOI: 10.1039/d0ra10602j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/02/2021] [Indexed: 12/11/2022] Open
Abstract
This study describes the development, verification and practical application of an aptasensor for the fluorometric detection of kanamycin. Using the nucleic acid aptamer with FAM fluorescent group as the conjugate, using gold nanoparticles as the fluorescence dynamic quenching source, a fluorescence sensor was fabricated through the signal-on method for the micro-detection of kanamycin. The nucleic acid chimera is connected to the fluorophore, and the gold nanoparticles are used as the fluorescence dynamic quenching source under actual conditions. The detection limit of kanamycin is 0.1 pM, and the detection range is 0.1 pM to 0.1 μM. This biosensor works satisfactorily in complex samples with no impurities, which gives this method an obvious advantage over other analytical methods. In addition, the mechanism of action between gold nanoparticles/FAM-aptamer/kanamycin is discussed and studied in depth here. It provides a more thorough analysis and more application possibilities for fluorescence-aptamer biosensing.
Collapse
Affiliation(s)
- Yimeng Sun
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Shanghai 200050 China
| | - Tong Qi
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Shanghai 200050 China
| | - Yan Jin
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Shanghai 200050 China
- College of Sciences, Shanghai Institute of Technology Shanghai 201418 China
| | - Lijuan Liang
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Shanghai 200050 China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
| |
Collapse
|
20
|
Zhang Y, Zhu Y, Zeng Z, Zeng G, Xiao R, Wang Y, Hu Y, Tang L, Feng C. Sensors for the environmental pollutant detection: Are we already there? Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
21
|
Wang H, Zhang Z, Chen C, Liang A, Jiang Z. Fullerene carbon dot catalytic amplification-aptamer assay platform for ultratrace As +3 utilizing SERS/RRS/Abs trifunctional Au nanoprobes. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123633. [PMID: 32827860 DOI: 10.1016/j.jhazmat.2020.123633] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/05/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Under microwave conditions, Au-doped carbon dots (CDAu) were prepared using fullerene as a precursor, and characterized in details. It is found that CDAu can strongly catalyze the reaction of HAuCl4-fructose to generate gold nanoparticles (AuNPs). The new nanocatalytic reaction was studied by surface-enhanced Raman scattering (SERS), resonance Rayleigh scattering (RRS) and absorption (Abs) spectrometry. Based on the specific aptamer (AptAs)-As+3 reaction mediated the CDAu-HAuCl4-fructose nanoreaction, and the products of AuNPs as SERS/RRS/Abs trifunctional indicator nanoprobes, a new trimode Apt assay strategy was developed for detection of ultratrace As+3. A 0.07-0.70, 0.10-0.60 and 0.20-0.70 μg L-1 were determined by SERS, RRS and Abs, with detection limits (DL) of 0.04, 0.06, 0.10 μg L-1 respectively. The aptamer-regulation CDAu catalytic amplification platform can be also used to assay 1.7-13.3 nmol L-1 Pb2+ and 2.0-12 μmol L-1 Hg2+, with DL of 0.80 nmol L-1 and 0.90 μmol L-1 respectively.
Collapse
Affiliation(s)
- Haolin Wang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Zhihao Zhang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Chunqiang Chen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China.
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China.
| |
Collapse
|
22
|
Huang W, Wang Y, Wang L, Pan C, Shen G. Colorimetric detection of ciprofloxacin in aqueous solution based on an unmodified aptamer and the aggregation of gold nanoparticles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:90-98. [PMID: 33300899 DOI: 10.1039/d0ay01811b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A colorimetric method is described for detection of the antibiotic ciprofloxacin (CIP) in aqueous solutions based on an unmodified CIP-aptamer and gold nanoparticles (AuNPs), which are regarded as a probe and an indicator, respectively. In the absence of CIP, aptamers can hybridize with poly dimethyl diallyl ammonium chloride (PDDA) to form a 'duplex' structure through electrostatic interactions, and AuNPs remain dispersed in solution, leading to a red solution and an obvious absorption peak at 520 nm. Contrarily, the CIP-aptamer can specifically bind to CIP after the introduction of CIP into the solution. Then PDDA is thus free to aggregate AuNPs. The solution turns blue from red accordingly, presenting a strong absorption at 650 nm. Hence, the concentration of CIP can be quantified through the changes of the absorption. This sensitive and selective colorimetric method for CIP detection has a good linear response (R = 0.9935) in the 20 to 300 nM CIP concentration range, with a limit of detection (LOD) of 0.215 nM. Importantly, the proposed aptasensor demonstrates great application potential in CIP determination in aqueous samples.
Collapse
Affiliation(s)
- Weiwen Huang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | | | | | | | | |
Collapse
|
23
|
Xie X, Li L, Wang L, Pan C, Zhang D, Shen G. Colourimetric Detection of Tebuconazole in Aqueous Solution Based on an Unmodified Aptamer and the Aggregation of Gold Nanoparticles. Aust J Chem 2021. [DOI: 10.1071/ch21171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This paper illustrates the establishment of a colourimetric method for detection of the fungicide tebuconazole (TEB) in aqueous samples based on an unmodified TEB-specific aptamer and gold nanoparticles (AuNPs). In the absence of TEB, the AuNPs are coated with a TEB-specific aptamer and then stably dispersed a NaCl solution of high concentration, leading to a red solution and producing a maximum UV absorption peak at 520 nm. In the presence of TEB, due to the specific high affinity between TEB and the TEB-specific aptamer, the aptamer combines with TEB to form stable compounds, causing the AuNPs to be exposed in the solution and aggregate. The aggregated AuNPs turn the solution from red to blue, presenting a maximum UV absorption peak at 650 nm. Therefore, the concentration of TEB in the system can be quantitatively detected through the changes in absorbance. This TEB selective colourimetric biosensor detects TEB over a linear concentration range of 20 to 400 nM (R = 0.99385) and has a limit of detection (LOD) of 4.13 nM. The average recovery of TEB is 94.9–104.8 % in the application of actual water samples with the relative standard deviations (RSD) ranging from 1.01 to 5.34 %. With considerable sensitivity and selectivity, this aptasensor indicates great potential for TEB detection in aqueous samples.
Collapse
|
24
|
Kumar V, Guleria P. Application of DNA-Nanosensor for Environmental Monitoring: Recent Advances and Perspectives. CURRENT POLLUTION REPORTS 2020:1-21. [PMID: 33344145 PMCID: PMC7732738 DOI: 10.1007/s40726-020-00165-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/04/2020] [Indexed: 05/24/2023]
Abstract
PURPOSE OF REVIEW Environmental pollutants are threat to human beings. Pollutants can lead to human health and environment hazards. The purpose of this review is to summarize the work done on detection of environmental pollutants using DNA nanosensors and challenges in the areas that can be focused for safe environment. RECENT FINDINGS Most of the DNA-based nanosensors designed so far use DNA as recognition element. ssDNA, dsDNA, complementary mismatched DNA, aptamers, and G-quadruplex DNA are commonly used as probes in nanosensors. More and more DNA sequences are being designed that can specifically detect various pollutants even simultaneously in complex milk, wastewater, soil, blood, tap water, river, and pond water samples. The feasibility of direct detection, ease of designing, and analysis makes DNA nanosensors fit for future point-of-care applications. SUMMARY DNA nanosensors are easy to design and have good sensitivity. DNA component and nanomaterials can be designed in a controlled manner to detect various environmental pollutants. This review identifies the recent advances in DNA nanosensor designing and opportunities available to design nanosensors for unexplored pathogens, antibiotics, pesticides, GMO, heavy metals, and other toxic pollutant.
Collapse
Affiliation(s)
- Vineet Kumar
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University (LPU), Jalandhar – Delhi G.T. Road, Phagwara, Punjab 144411 India
| | - Praveen Guleria
- Department of Biotechnology, Faculty of Life Sciences, DAV University, Jalandhar, Punjab 144012 India
| |
Collapse
|
25
|
Cheng Y, Wang S, Zhang J, Cao J, Qu Y. A fluorescent molecular sensor based on ESIPT process for rapid detection of arsenic species in hydrophobic system. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128824] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
26
|
Zou R, Ma Y, Li C, Zhang F, Chen C, Cai C. A label-free resonance light scattering biosensor for nucleic acids using triple-helix molecular switch and G-quadruplex nanowires. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
27
|
|
28
|
Zhang J, Gopinath SCB. Quantification of cortisol for the medical diagnosis of multiple pregnancy-related diseases. 3 Biotech 2020; 10:35. [PMID: 31988829 PMCID: PMC6946767 DOI: 10.1007/s13205-019-2030-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/20/2019] [Indexed: 01/03/2023] Open
Abstract
Cortisol is a stress hormone released from the adrenal glands and is responsible for both hyperglycemia and hypertension during pregnancy. These factors make it mandatory to detect the levels of cortisol during pregnancy to identify and treat hypoglycemia and hypertension. In this study, cortisol levels were quantified with an aptamer-conjugated gold nanorod using an electrochemical interdigitated electrode sensor. The surface uniformity was analyzed by high-power microscopy and 3D-nanoprofiler imaging. The detection limit was determined to be 0.01 ng/mL, and a linear regression indicated that the sensitivity range was in the range of 0.01-0.1 ng/mL, based on a 3σ calculation. Moreover, the specificity of the aptamer was determined by a binding analysis against norepinephrine and progesterone, and it was clearly found that the aptamer specifically recognizes only cortisol. Further, the presence of cortisol was detected in the serum in a dose-dependent manner. This method is useful to detect and correlate multiple pregnancy-related diseases by quantifying the levels of cortisol.
Collapse
Affiliation(s)
- Junna Zhang
- Department of Gynaecology, The Fourth Hospital of Shijiazhuang, Shijiazhuang, 050000 Hebei China
| | - Subash C. B. Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis Malaysia
| |
Collapse
|
29
|
Wang J, Wang J, Zhou P, Tao H, Wang X, Wu Y. Oligonucleotide-induced regulation of the oxidase-mimicking activity of octahedral Mn 3O 4 nanoparticles for colorimetric detection of heavy metals. Mikrochim Acta 2020; 187:99. [PMID: 31912245 DOI: 10.1007/s00604-019-4069-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/06/2019] [Indexed: 11/24/2022]
Abstract
A colorimetric assay for the determination of heavy metal ions is presented that is based on the regulation of the oxidase-mimicking activity of Mn3O4 nanoparticles (NPs) by oligonucleotides. The chromogenic agent tetramethylbenzidine (TMB) is oxidized by the catalytic action of Mn3O4 NPs to generate products that have a yellow color in acidic solution, with a peak at 450 nm. It is found that random oligonucleotides are absorbed on the regular surface of the Mn3O4 NPs and temporarily inhibit the oxidation of TMB. This leads to a decrease in absorbance and a light-green coloration of the solution. The results show that the purine bases in oligonucleotides play a key role in their regulation of the activity of the NPs. The regulatory effect is assumed to be of the noncompetitive type. In the presence of heavy metal ions like Hg(II) or Cd(II), the inhibition is canceled due to the binding of heavy metal ions to thymine bases, and the color of the solution changes from light green to yellow. The increase in absorbance at 450 nm is related to the amount of heavy metal ions present. The method allows Hg(II) and Cd(II) to be determined visually in concentrations as low as 20 μg·L-1. The detection limit of the colorimetric assay is 3.8 and 2.4 μg·L-1 of Hg(II) and Cd(II), respectively. The assay displays good selectivity over other heavy metal ions. The method was successfully validated by analyzing several water samples. Graphical abstract Schematic representation of the colorimetric assay for Hg(II) and Cd(II) based on the intrinsic oxidase-mimicking activity of Mn3O4 nanoparticles that is regulated by oligonucleotides.
Collapse
Affiliation(s)
- Jiajia Wang
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, China
| | - Jinlong Wang
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, China
| | - Pei Zhou
- Key Laboratory of Urban Agriculture Ministry of Agriculture, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Han Tao
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, China
| | - Xueli Wang
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, China
| | - Yuangen Wu
- Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, School of Liquor and Food Engineering, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Huaxi District, Guiyang, 550025, Guizhou Province, China. .,Key Laboratory of Wuliangye-flavor Liquor Solid-state Fermentation, China National Light Industry, Cuiping District, Sichuan Province, Yibin, 644000, China.
| |
Collapse
|
30
|
A novel colorimetric aptasensor for detection of chloramphenicol based on lanthanum ion-assisted gold nanoparticle aggregation and smartphone imaging. Anal Bioanal Chem 2019; 411:7511-7518. [PMID: 31641824 DOI: 10.1007/s00216-019-02149-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/14/2019] [Accepted: 09/10/2019] [Indexed: 12/29/2022]
Abstract
A label-free, rapid response colorimetric aptasensor for sensitive detection of chloramphenicol (CAP) was proposed, which was based on the strategy of ssDNA-modified gold nanoparticle (AuNP) aggregation assisted by lanthanum (La3+) ions. The AuNPs generated a color change that could be monitored in the red, green, and blue and analyzed by the smartphone imaging app. La3+, as a trigger agent, strongly combined with the phosphate groups of the surface of ssDNA-AuNPs probe, which helps create AuNP aggregation and the color change of AuNPs from red to blue. On the contrary, when mixing with CAP, the aptamer (Apt) bound to CAP to form a rigid structure of the Apt-CAP complex, and La3+ attached to the phosphate groups of the complex, which prevented the aptamer from binding to the surface of the AuNPs. As a result, the color of the AuNPs changed to violet-red. Finally, UV-vis absorption spectroscopy and the smartphone imaging app were employed to determine CAP with a lower detection limit of 7.65 nM and 5.88 nM, respectively. The proposed strategy featuring high selectivity and strong anti-interference ability for detection of CAP in practical samples was achieved. It is worth mentioning that the simple and portable colorimetric aptasensor will be used for facilitating on-site detection of food samples.
Collapse
|
31
|
Mao K, Zhang H, Wang Z, Cao H, Zhang K, Li X, Yang Z. Nanomaterial-based aptamer sensors for arsenic detection. Biosens Bioelectron 2019; 148:111785. [PMID: 31689596 DOI: 10.1016/j.bios.2019.111785] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/02/2019] [Accepted: 10/12/2019] [Indexed: 02/06/2023]
Abstract
Arsenic (As) is a highly toxic contaminant in the environment and a serious carcinogen for the human being. The toxicity of arsenic significantly threatens environmental and human health. The effective removing technology for arsenic remains challenging, and one of the reasons is due to the lack of powerful detection method in the complex environmental matrix. There is thus an urgent need to develop novel analytical methods for arsenic, preferably with the potential for the field-testing. To combat arsenic pollution and maintain a healthy environment and eco-system, many analytical methods have been developed for arsenic detection in various samples. Among these strategies, biosensors hold great promise for rapid detection of arsenic, in particular, nanomaterials-based aptamer sensors have attracted significant attention due to their simplicity, high sensitivity and rapidness. In this paper, we reviewed the recent development and applications of aptamer sensors (aptasensors) based-on nanomaterial for arsenic detection, in particular with emphasis on the works using optical and electrochemical technologies. We also discussed the recent novel technology in aptasensors development for arsenic detection, including nucleic acid amplification for signal enhancement and device integration for the portability of arsenic sensors. We are hoping this review could inspire further researches in developing novel nanotechnologies based aptasensors for possible on-site detection of arsenic.
Collapse
Affiliation(s)
- Kang Mao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Hua Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Zhenglu Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Haorui Cao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Kuankuan Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Xiqing Li
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Zhugen Yang
- Cranfield Water Science Institute, Cranfield University, Cranfield MK43 0AL, United Kingdom.
| |
Collapse
|
32
|
|
33
|
Zong C, Zhang Z, Liu B, Liu J. Adsorption of Arsenite on Gold Nanoparticles Studied with DNA Oligonucleotide Probes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7304-7311. [PMID: 31079464 DOI: 10.1021/acs.langmuir.9b01161] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Gold nanoparticles (AuNPs) have been extensively used for detecting arsenite, As(III). Many methods rely on a DNA aptamer that claimed to bind specifically to inorganic arsenic. In these cases, the focus was on arsenic binding to the aptamer, while the potential interactions between As(III) and the AuNP surface were ignored. Herein, a set of spectroscopic and isothermal titration calorimetry (ITC) experiments were conducted to measure the adsorption of As(III) by AuNPs and its competition with DNA adsorption. With 10 mM As(III), 18% of adsorbed DNA was displaced from AuNPs, while preadsorption of only 20 μM As(III) inhibited DNA adsorption by around 50%. The affinity of As(III) on AuNPs is comparable to Br- and guanosine. ITC and Raman spectroscopy both indicated that only As(III) can be adsorbed, while As(V) had no measurable interactions with the AuNPs. Based on this understanding, a random DNA sequence was used and a similar colorimetric response in the presence of As(III) was observed. This study confirmed the affinity between As(III) and the gold surface. The As(III)/gold interaction is strong enough to affect DNA adsorption, and care should be taken to interpret the observations based on the color change of AuNPs for the detection of As(III).
Collapse
Affiliation(s)
- Chenghua Zong
- Department of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials , Jiangsu Normal University , Xuzhou , Jiangsu 221116 , P. R. China
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Zijie Zhang
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Biwu Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology , University of Waterloo , Waterloo , Ontario N2L 3G1 , Canada
| |
Collapse
|
34
|
Andrić JM, Stanković IM, Zarić SD. Binding of metal ions and water molecules to nucleic acid bases: the influence of water molecule coordination to a metal ion on water-nucleic acid base hydrogen bonds. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:301-309. [PMID: 32830651 DOI: 10.1107/s2052520619001999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 02/04/2019] [Indexed: 06/11/2023]
Abstract
The interactions of nucleic acid bases with non-coordinated and coordinated water molecules were studied by analyzing data in the Protein Data Bank (PDB) and by quantum chemical calculations. The analysis of the data in the crystal structures from the PDB indicates that hydrogen bonds involving oxygen or nitrogen atoms of nucleic acid bases and water molecules are shorter when water is bonded to a metal ion. These results are in agreement with the quantum chemical calculations on geometries and interaction energies of hydrogen bonds; the calculations on model systems show that hydrogen bonds of nucleic acid bases with water bonded to a metal ion are stronger than hydrogen bonds with non-coordinated water. These calculated values are similar to the strength of hydrogen bonds between nucleic acid bases. The results presented in this paper may be relevant to understand the role of water molecules and metal ions in the process of replication and stabilization of nucleic acids and also to understand the possible toxicity of metal ion interactions with nucleic acids.
Collapse
Affiliation(s)
- Jelena M Andrić
- Innovation center of the Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | | | - Snežana D Zarić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| |
Collapse
|
35
|
Sim J, Byun JY, Shin YB. Transcription immunoassay: light-up RNA aptamer-based immunoassay using in vitro transcription. Chem Commun (Camb) 2019; 55:3618-3621. [PMID: 30849150 DOI: 10.1039/c9cc00514e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Here, we present an ultra-enhanced immunoassay for sensitive and reliable biomarker detection using layer-by-layer assembly and transcription-assisted light-up aptamer generation to induce signal amplification. This dendrimer structure-based transcription immunoassay is ∼1500 times more sensitive than commercial fluorescence ELISA, achieving a detection limit of 108 aM.
Collapse
Affiliation(s)
- Jieun Sim
- Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
| | | | | |
Collapse
|
36
|
Rahman MM, Hussain MM, Arshad MN, Awual MR, Asiri AM. Arsenic sensor development based on modification with (E)-N′-(2-nitrobenzylidine)-benzenesulfonohydrazide: a real sample analysis. NEW J CHEM 2019. [DOI: 10.1039/c9nj01567a] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
(E)-N′-(2-Nitrobenzylidene)-benzenesulfonohydrazide was prepared from 2-nitrobenzaldehyde and benzenesulfonylhydrazine by using a condensation method and applied as a selective As3+ sensor.
Collapse
Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University
- Jeddah 21589
| | - Mohammad Musarraf Hussain
- Chemistry Department, Faculty of Science, King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University
- Jeddah 21589
| | - Muhammad N. Arshad
- Chemistry Department, Faculty of Science, King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University
- Jeddah 21589
| | - Md. Rabiul Awual
- Center of Excellence for Advanced Materials Research, King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
- Center of Excellence for Advanced Materials Research, King Abdulaziz University
- Jeddah 21589
| |
Collapse
|
37
|
Muppidathi M, Perumal P, Ayyanu R, Subramanian S. Immobilization of ssDNA on a metal–organic framework derived magnetic porous carbon (MPC) composite as a fluorescent sensing platform for the detection of arsenate ions. Analyst 2019; 144:3111-3118. [DOI: 10.1039/c9an00139e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this work, we fabricated a metal–organic framework derived magnetic porous carbon (MPC) and with ssDNA achieved specific and efficient recognition of harmful arsenate ions. The detection limit was achieved at 630 pM.
Collapse
Affiliation(s)
| | - Panneerselvam Perumal
- Department of Chemistry
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | - Ravikumar Ayyanu
- Department of Chemistry
- SRM Institute of Science and Technology
- Kattankulathur 603 203
- India
| | | |
Collapse
|
38
|
Berberich J, Li T, Sahle-Demessie E. Biosensors for Monitoring Water Pollutants: A Case Study With Arsenic in Groundwater. SEP SCI TECHNOL 2019. [DOI: 10.1016/b978-0-12-815730-5.00011-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
39
|
Colorimetric determination of ofloxacin using unmodified aptamers and the aggregation of gold nanoparticles. Mikrochim Acta 2018; 185:355. [DOI: 10.1007/s00604-018-2895-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/27/2018] [Indexed: 12/11/2022]
|
40
|
Rahman MM, Hussein MA, Aly KI, Asiri AM. Thermally stable hybrid polyarylidene(azomethine-ether)s polymers (PAAP): an ultrasensitive arsenic(III) sensor approach. Des Monomers Polym 2018; 21:82-98. [PMID: 29844770 PMCID: PMC5965036 DOI: 10.1080/15685551.2018.1471793] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/25/2018] [Indexed: 12/22/2022] Open
Abstract
A new category of thermally stable hybrid polyarylidene(azomethine-ether)s and copolyarylidene(azomethine-ether)s (PAAP) based on diarylidenecycloalkanones has been synthesized using solution polycondensation method. For potential cationic sensor development, a thin layer of PAAP onto a flat glassy carbon electrode (GCE, surface area: 0.0316 cm2) was prepared with conducting nafion (5%) coating agent to fabricate a sensitive and selective arsenic (III) [As3+] ion in short response time in neutral buffer system. The fabricated cationic sensor was measured the analytical performances such as higher sensitivity, linear dynamic range, detection limit, reproducibility, and long-term stability towards As3+ ions. The sensitivity and detection limit were calculated as 2.714 μAμM-1cm-2 and 6.8 ± 0.1 nM (SNR of 3; 3N/S) respectively from the calibration curve. This novel approach can be initiated a well-organized route of an efficient development of heavy selective arsenic sensor for hazardous pollutants in biological, environmental, and health care fields. Real sample analysis for various environmental sample was performed with PAAP-modified-GCE.
Collapse
Affiliation(s)
- Mohammed M Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.,Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mahmoud A Hussein
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.,Polymer Chemistry Lab. 122, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Kamal I Aly
- Polymer Chemistry Lab. 122, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.,Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| |
Collapse
|
41
|
Miniaturized Sample Preparation and Rapid Detection of Arsenite in Contaminated Soil Using a Smartphone. SENSORS 2018; 18:s18030777. [PMID: 29510538 PMCID: PMC5877113 DOI: 10.3390/s18030777] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 02/17/2018] [Accepted: 02/27/2018] [Indexed: 12/17/2022]
Abstract
Conventional methods for analyzing heavy metal contamination in soil and water generally require laboratory equipped instruments, complex procedures, skilled personnel and a significant amount of time. With the advancement in computing and multitasking performances, smartphone-based sensors potentially allow the transition of the laboratory-based analytical processes to field applicable, simple methods. In the present work, we demonstrate the novel miniaturized setup for simultaneous sample preparation and smartphone-based optical sensing of arsenic As(III) in the contaminated soil. Colorimetric detection protocol utilizing aptamers, gold nanoparticles and NaCl have been optimized and tested on the PDMS-chip to obtain the high sensitivity with the limit of detection of 0.71 ppm (in the sample) and a correlation coefficient of 0.98. The performance of the device is further demonstrated through the comparative analysis of arsenic-spiked soil samples with standard laboratory method, and a good agreement with a correlation coefficient of 0.9917 and the average difference of 0.37 ppm, are experimentally achieved. With the android application on the device to run the experiment, the whole process from sample preparation to detection is completed within 3 hours without the necessity of skilled personnel. The approximate cost of setup is estimated around 1 USD, weight 55 g. Therefore, the presented method offers the simple, rapid, portable and cost-effective means for onsite sensing of arsenic in soil. Combined with the geometric information inside the smartphones, the system will allow the monitoring of the contamination status of soils in a nation-wide manner.
Collapse
|
42
|
Practical Application of Aptamer-Based Biosensors in Detection of Low Molecular Weight Pollutants in Water Sources. Molecules 2018; 23:molecules23020344. [PMID: 29414854 PMCID: PMC6017897 DOI: 10.3390/molecules23020344] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/30/2018] [Accepted: 01/30/2018] [Indexed: 01/08/2023] Open
Abstract
Water pollution has become one of the leading causes of human health problems. Low molecular weight pollutants, even at trace concentrations in water sources, have aroused global attention due to their toxicity after long-time exposure. There is an increased demand for appropriate methods to detect these pollutants in aquatic systems. Aptamers, single-stranded DNA or RNA, have high affinity and specificity to each of their target molecule, similar to antigen-antibody interaction. Aptamers can be selected using a method called Systematic Evolution of Ligands by EXponential enrichment (SELEX). Recent years we have witnessed great progress in developing aptamer selection and aptamer-based sensors for low molecular weight pollutants in water sources, such as tap water, seawater, lake water, river water, as well as wastewater and its effluents. This review provides an overview of aptamer-based methods as a novel approach for detecting low molecular weight pollutants in water sources.
Collapse
|
43
|
Thao Nguyen NL, Park CY, Park JP, Kailasa SK, Park TJ. Synergistic molecular assembly of an aptamer and surfactant on gold nanoparticles for the colorimetric detection of trace levels of As3+ ions in real samples. NEW J CHEM 2018. [DOI: 10.1039/c8nj01097h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A facile and selective aptasensor was developed by the synergistic molecular assembly of the Ars-3 aptamer on AuNPs for the detection of As3+ ions using CTAB as a binder.
Collapse
Affiliation(s)
- Nguyen Le Thao Nguyen
- Department of Chemistry, Institute of Interdisciplinary Convergence Research
- Research Institute of Halal Industrialization Technology
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| | - Chan Yeong Park
- Department of Chemistry, Institute of Interdisciplinary Convergence Research
- Research Institute of Halal Industrialization Technology
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| | - Jong Pil Park
- Department of Pharmaceutical Engineering
- Daegu Haany University
- Gyeongsan 38610
- Republic of Korea
| | - Suresh Kumar Kailasa
- Department of Chemistry, Institute of Interdisciplinary Convergence Research
- Research Institute of Halal Industrialization Technology
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Institute of Interdisciplinary Convergence Research
- Research Institute of Halal Industrialization Technology
- Chung-Ang University
- Seoul 06974
- Republic of Korea
| |
Collapse
|
44
|
Wen S, Zhang C, Liang R, Chi B, Yuan Y, Qiu J. Highly sensitive voltammetric determination of arsenite by exploiting arsenite-induced conformational change of ssDNA and the electrochemical indicator Methylene Blue. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2432-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
45
|
Zhang L, Cheng XZ, Kuang L, Xu AZ, Liang RP, Qiu JD. Simple and highly selective detection of arsenite based on the assembly-induced fluorescence enhancement of DNA quantum dots. Biosens Bioelectron 2017; 94:701-706. [DOI: 10.1016/j.bios.2017.03.057] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/21/2017] [Accepted: 03/27/2017] [Indexed: 12/23/2022]
|
46
|
An JH, Jang J. A highly sensitive FET-type aptasensor using flower-like MoS 2 nanospheres for real-time detection of arsenic(iii). NANOSCALE 2017; 9:7483-7492. [PMID: 28530303 DOI: 10.1039/c7nr01661a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Arsenic (As) contamination in drinking water is problematic due to its threat to human health. Highly stable, sensitive and selective sensors are needed for As(iii), which is the most toxic of the various forms of arsenic. Herein, we describe the fabrication of field-effect transistor (FET)-type aptasensors for As(iii) detection that is based on carboxylic polypyrrole (CPPy)-coated flower-like MoS2 nanospheres (CFMNSs). Arsenic-binding aptamer-conjugated CFMNSs were integrated into a liquid-ion gated FET system, leading to extraordinary performance with a rapid response (on a time scale of less than 1 s). Field-induced current changes occurred through the interaction between the aptamer and As(iii), resulting in sensitive discrimination of As(iii) at unprecedentedly low concentrations (ca. 1 pM). Moreover, the CFMNS-based aptasensor selectively recognized As(iii) among numerous other metal ions and accurately detected As(iii) in a mixed solution. The FET aptasensor could also discriminate target analytes in a real sample derived from river water. This MoS2-based aptasensor is a promising tool for the detection of As(iii) and could be used in a wide range of practical applications.
Collapse
Affiliation(s)
- Ji Hyun An
- School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Republic of Korea.
| | | |
Collapse
|
47
|
Tan X, Yang J, Yang Q, Li Q. A highly sensitive resonance Rayleigh scattering and colorimetric assay for the recognition of propranolol in β‐adrenergic blocker. LUMINESCENCE 2017; 32:1221-1226. [DOI: 10.1002/bio.3314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 01/19/2017] [Accepted: 02/15/2017] [Indexed: 12/25/2022]
Affiliation(s)
| | - Jidong Yang
- Chongqing Three Gorges University Wanzhou China
- School of Chemistry and Chemical Engineering Yangtze Normal University Chongqing China
- School of Chemistry and Chemical Engineering Southwest University Chongqing China
| | - Qiong Yang
- School of Chemistry and Chemical Engineering Yangtze Normal University Chongqing China
| | - Qin Li
- Chongqing Medical and Health school Fuling China
| |
Collapse
|
48
|
Oroval M, Coll C, Bernardos A, Marcos MD, Martínez-Máñez R, Shchukin DG, Sancenón F. Selective Fluorogenic Sensing of As(III) Using Aptamer-Capped Nanomaterials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11332-11336. [PMID: 28220694 DOI: 10.1021/acsami.6b15164] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Organic-inorganic hybrid nanomaterials offer extremely valuable tools for monitoring many types of analytes in solution. Within this framework, aptamer-based nanomaterials for heavy metal detection are still very scarce. Herein, a novel sensing nanoprobe for the selective and sensitive detection of As(III) based on the combination of aptamers with mesoporous silica nanoparticles has been developed. The efficiency of the sensor is demonstrated in environmental conditions, showing a great potential in As(III) monitoring assays.
Collapse
Affiliation(s)
- Mar Oroval
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| | - Carmen Coll
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| | - Andrea Bernardos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| | - María D Marcos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| | - Dmitry G Shchukin
- Chemistry Department, Stephenson Institute for Renewable Energy, The University of Liverpool , Chadwick Building, Peach Street, Liverpool, L69 7ZF, United Kingdom
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València , Camino de Vera s/n, 46022 València, Spain
| |
Collapse
|
49
|
Aptasensor for lead(II) based on the use of a quartz crystal microbalance modified with gold nanoparticles. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2135-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
50
|
Gong L, Du B, Pan L, Liu Q, Yang K, Wang W, Zhao H, Wu L, He Y. Colorimetric aggregation assay for arsenic(III) using gold nanoparticles. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2122-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|