1
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Feng DQ, Teng Y, Shi H, Liu G. A berberine induced disassembly towards zwitterionic surfactant as mimicking cell membrane for light-scattering sensing and logic devices. Talanta 2023; 255:124259. [PMID: 36634428 DOI: 10.1016/j.talanta.2023.124259] [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: 08/28/2022] [Revised: 12/15/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
A label-free light-scattering sensor for berberine determination was developed based on Gemini zwitterionic surfactant as logic devices. Amphiphilic phosphodiesters quaternary ammonium nanoparticles (PQANPs) with bionic phosphate ester structure were selected as a model for mimicking cell membrane. PQANPs self-assembled and formed the micelle structure, emitting strong light-scattering signal. Interestingly, the addition of berberine induced remarkable decrease of light-scattering attribute to its interfering behavior of PQANPs aggregation. Disassembly of PQANPs could be triggered due to electrostatic interaction and hydrophobic force between PQANPs and berberine. The berberine attached to the PQANPs surface and generated nanocomposites, resulting in significant reduce of light-scattering signal. Hence, it generated a strong light-scattering signal variation according to the change of the concentration of target. Our proposed light-scattering on-off sensor could be applied for berberine detection with detection limit of 27 nM. Moreover, a logic gate system was constructed based on PQANPs sensor with berberine and the interfering substances as the inputs and the light-scattering intensity as an output, which could hold great potential application in future clinical diagnosis and drug analysis.
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Affiliation(s)
- Da-Qian Feng
- School of Chemistry and Chemical Engineering and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, PR China.
| | - Youjian Teng
- School of Chemistry and Chemical Engineering and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, PR China
| | - Haiwen Shi
- School of Chemistry and Chemical Engineering and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, PR China
| | - Guoliang Liu
- School of Chemistry and Chemical Engineering and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, PR China.
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2
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Aggarwal R, Hooda M, Kumar P, Jain N, Dubey GP, Chugh H, Chandra R. Visible-Light-Prompted Synthesis and Binding Studies of 5,6-Dihydroimidazo[2,1- b]thiazoles with BSA and DNA Using Biophysical and Computational Methods. J Org Chem 2022; 87:3952-3966. [PMID: 35235320 DOI: 10.1021/acs.joc.1c02471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Fused heterocyclic systems containing a bridgehead nitrogen atom have emerged as imperative pharmacophores in the design and development of new drugs. Among these heterocyclic moieties, the imidazothiazole scaffold has long been used in medicinal chemistry for the treatment of various diseases. In this study, we have established a simplistic and environmentally safe regioselective protocol for the synthesis of 5,6-dihydroimidazo[2,1-b]thiazole derivatives from easily available reactants. The reaction proceeds through in situ formation of the α-bromodiketones ensuing trap with imidazolidine-2-thione to provide these versatile bicyclic heterocycles in excellent yields. The synthesized compounds were screened through the molecular docking approach for the most stable complex formation with bovine serum albumin (BSA) and calf thymus deoxyribonucleic acid (ctDNA). The selected compound was further studied using ex vivo binding studies, which revealed moderate interactions with BSA and ctDNA. The binding studies were performed using biophysical approaches including UV-visible spectroscopy, steady-state fluorescence, circular dichroism (CD), and viscosity parameters.
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Affiliation(s)
- Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India.,CSIR-National Institute of Science Communication and Policy Research, New Delhi 110012, India
| | - Mona Hooda
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Prince Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Naman Jain
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Gyan Prakash Dubey
- Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Heerak Chugh
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, New Delhi 110007, India
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3
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Ghosh S, Singharoy D, Konar S, Naskar JP, Bhattacharya SC. Solvatochromic behavior of a pyrene-pyrimidine-based Schiff base and detection of heavy metal ions in aqueous media. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1897980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Swadesh Ghosh
- Department of Chemistry, Jadavpur University, Kolkata, India
| | - Dipti Singharoy
- Department of Chemistry, Jadavpur University, Kolkata, India
| | - Saugata Konar
- Department of Chemistry, The Bhawanipur Education Society College, Kolkata, India
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4
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Yu S, Wang Z, Gao L, Zhang B, Wang L, Kong J, Li L. A Highly Selective and Sensitive Peptide-Based Fluorescent Ratio Sensor for Ag . J Fluoresc 2020; 31:237-246. [PMID: 33215317 DOI: 10.1007/s10895-020-02653-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/12/2020] [Indexed: 12/28/2022]
Abstract
A fluorescence ratio sensor based on dansyl-peptide, Dansyl-Glu-Cys-Glu-Glu-Trp-NH2 (D-P5), was efficiently synthesized by Fmoc solid phase peptide synthesis. The sensor exhibits high selectivity and sensitivity for Ag+ over 16 metal ions in 100 mM sodium perchlorate and 50 mM 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid buffer solution by fluorescence resonance energy transfer. The 1:1 binding stoichiometry of the sensor and Ag+ is measured by fluorescence ratio response and the job's plot. The dissociation constant of the sensor with Ag+ was calculated to be 6.4 × 10-9 M, which indicates that the sensor has an effective binding affinity for Ag+. In addition, the limit of detection of the sensor for Ag+ was determined to be 80 nM, which also indicates that the sensor has a high sensitivity to Ag+. Result showed that the sensor is an excellent Ag+ sensor under neutral condition. Furthermore, this sensor displays good practicality for Ag+ detection in river water samples without performing tedious sample pretreatment, as well as for silver chloride detection.
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Affiliation(s)
- Shuaibing Yu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China
| | - Zhaolu Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China
| | - Lei Gao
- Zhong Yuan Academy of Biological Medicine, Liaocheng People's Hospital Affiliated to Shandong University, Liaocheng, 252000, People's Republic of China
| | - Bo Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, People's Republic of China.
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5
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A new strategy for determination of trace PO43− using CNDAu as resonance Rayleigh scattering and fluorescence dual-mode probe. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104892] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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6
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Ultrasensitive determination of mercury ions using a glassy carbon electrode modified with nanocomposites consisting of conductive polymer and amino-functionalized graphene quantum dots. Mikrochim Acta 2020; 187:210. [PMID: 32152671 DOI: 10.1007/s00604-020-4191-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
A one-pot method based on cyclic voltammetric scan was used to fabricate a glassy carbon electrode modified with nanocomposites consisting of poly(thionine) and amino-functionalized graphene quantum dots (afGQDs). Under near-neutral conditions, the dye polymer was effectively oxidized by hydroxyl radicals (·OH) that were derived from the copper-catalyzed Fenton-like reaction, and the cathodic peak current on the modified electrode greatly increased. The reaction of Cu2+ with thiourea (TU) and the generation of a complex, CuTU2+, led to the decrease of Cu2+/Cu+ species, which inhibited the Fenton-like reaction and reduced the electrochemical response change. Due to a displacement reaction, the addition of Hg2+ into the H2O2-Cu2+-TU system resulted in the release of cuprous ions that benefited the Fenton-like reaction. Under the following optimal conditions: 6 mg mL-1 afGQDs and the 25-cycle potential cycling for the fabrication of the modified electrode, pH 6.5, and the [Formula: see text] ratio of 1.0, the increasing extent of the cathodic peak current exhibited a good linear response to the logarithm of the Hg2+ concentration in the range of 1 pM-1 μM with a detection limit of 0.6 pM. Mercury ions in a water sample were determined with good recovery, ranging from 97 to 103%. The investigation on the uptake of Hg2+ into human vascular endothelial cells, HUVEC, shows that the cells incubated in the high-concentration glucose medium absorbed more mercury ions than HUVEC incubated in the normal medium. As a result, Hg2+ could lead to the greater damage to the former. Graphical abstract.
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7
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Pang X, Wang L, Gao L, Feng H, Kong J, Li L. Multifunctional peptide-based fluorescent chemosensor for detection of Hg 2+ , Cu 2+ and S 2- ions. LUMINESCENCE 2019; 34:585-594. [PMID: 31074183 DOI: 10.1002/bio.3641] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/05/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022]
Abstract
A novel multifunctional fluorescent peptide sensor based on pentapeptide dansyl-Gly-His-Gly-Gly-Trp-COOH (D-P5) was designed and synthesized efficiently using Fmoc solid-phase peptide synthesis (SPPS). This fluorescent peptide sensor shows selective and sensitive responses to Hg2+ and Cu2+ among 17 metal ions and six anions studied in N-2-hydroxyethylpiperazine-N-2-ethane sulfonic acid (HEPES) buffer solution. The peptide probe differentiates Hg2+ and Cu2+ ions by a 'turn-on' response to Hg2+ and a 'turn-off' response to Cu2+ . Upon addition of Hg2+ or Cu2+ ions, the sensor displayed an apparent color change that was visible under an ultraviolet lamp to the naked eye. The limits of detection (LOD) of DP-5 were 25.0 nM for Hg2+ and 85.0 nM for Cu2+ ; the detection limits for Cu2+ were much lower than the drinking water maximum contaminant levels set out by the United States Environmental Protection Agency (USEPA). It is noteworthy that both D-P5-Hg and D-P5-Cu systems were also used to detect S2- successfully based on the formation of ternary complexes. The LODs of D-P5-Hg and D-P5-Cu systems for S2- were 217.0 nM and 380.0 nM, respectively. Furthermore, the binding stoichiometry, binding affinity and pH sensitivity of the probe for Hg2+ and Cu2+ were investigated. This study gives new possibilities for using a short fluorescent peptide sensor for multifunctional detection, especially for anions.
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Affiliation(s)
- Xuliang Pang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Lei Gao
- Zhong Yuan Academy of Biological Medicine, Liaocheng People's Hospital, Liaocheng, China
| | - Huiyun Feng
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing, China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
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8
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Feng DQ, Liu G, Ma G, Nan Z, Wang W. Phosphodiesters quaternary ammonium nanoparticles as label-free light scattering probe for turn-off detection of tyrosine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 208:1-6. [PMID: 30278308 DOI: 10.1016/j.saa.2018.09.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 09/21/2018] [Accepted: 09/23/2018] [Indexed: 06/08/2023]
Abstract
In this contribution, a new highly sensitive and selective sensor of the determination of tyrosine has been proposed based on the downturn effect of light scattering (LS) using phosphodiesters quaternary ammonium nanoparticles (PQANPs). Phosphodiesters quaternary ammonium (PQA), one of Gemini zwitterionic surfactants, self-aggregated into the micelle named as PQANPs, which generated strong LS signal in aqueous solution under the optimum condition. Interestingly, the powerful LS intensity of PQANPs with the maximum peak located at 391 nm significantly decreased after introducing trace amount of tyrosine. The decreased value of the LS intensity of the PQA-tyrosine system (ΔILS) was in proportion to tyrosine concentration in the ranges from 5.5 × 10-8 mol/L to 4.68 × 10-6 mol/L, with a detection limit of 1.38 × 10-8 mol/L. Based on this decreased LS situation, the novel approach of the determination of tyrosine was first developed. The reaction mechanism for the interaction between PQANPs and tyrosine was also investigated. Moreover, the proposed LS assay was applied to the detection of tyrosine concentration in human serum and urine samples with satisfactory results.
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Affiliation(s)
- Da-Qian Feng
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Guoliang Liu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China; Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, PR China.
| | - Gangpo Ma
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Zhe Nan
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China
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9
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Ultrasensitive impedimetric mercury(II) sensor based on thymine-Hg(II)-thymine interaction and subsequent disintegration of multiple sandwich-structured DNA chains. Mikrochim Acta 2018; 185:555. [PMID: 30465290 DOI: 10.1007/s00604-018-3097-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/15/2018] [Indexed: 02/07/2023]
Abstract
An impedimetric method is described for ultrasensitive analysis of mercury(II). It is based on thymine-Hg(II)-thymine interaction which causes the disintegration of multiple-sandwich structured DNA chains. DNA strands were selected that are partially complementary to the T-rich Hg(II)-specific oligonucleotides (MSO). They were immobilized on a gold electrode via Au-S interaction. Next, the MSO and the bridging strands (BS) that can connect adjacent MSOs were alternately attached through layer-by-layer hybridization. Thus, a multiple-sandwich structured interface in created that carries numerous MSOs. This leads to a change-transfer resistance (Rct) values of the electrode-electrolyte interface at faradic electrochemical impedance spectroscopy measurements in the presence of the hexacyanoferrate(II)/(III) redox probe at 0.2 V (vs. Ag/AgCl). If Hg(II) is added to the solution, the MSOs selectively interact with Hg(II) to produce T-Hg(II)-T structures. Hence, the multiple-sandwich hybridization chains become disintegrated, and this causes a decrease in resistivity. The effect can be used to quantify Hg(II) over an analytical range that extends over four orders of magnitude (1 fM to 10 pM), and it has a 0.16 fM limit of detection under optimal conditions. Graphical abstract An electrochemical sensor for femtomolar level detection of Hg2+ is realized on the basis of thymine-Hg2+-thymine interaction which causes disintegration of multiple sandwich DNA hybridization strands.
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10
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Tao L, Yue Q, Hou Y, Wang Y, Chen C, Li CZ. Resonance light scattering aptasensor for urinary 8-hydroxy-2'-deoxyguanosine based on magnetic nanoparticles: a preliminary study of oxidative stress association with air pollution. Mikrochim Acta 2018; 185:419. [PMID: 30121832 DOI: 10.1007/s00604-018-2937-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/26/2018] [Indexed: 02/07/2023]
Abstract
An aptamer based method is described for the determination of 8-hydroxy-2'-deoxyguanosine (8-OHdG) using resonance light scattering (RLS). Magnetic nanoparticles (MNPs) were employed as RLS probes. The probe DNA was placed on the surface of MNPs, which produces a rather low RLS signal. If, however, probe DNA hybridizes with the aptamer against 8-OHdG, a sandwich structure will be formed. This results in a significant enhancement of RLS intensity. The aptamer was used as the recognition element to capture 8-OHdG. 8-OHdG has a stronger affinity for the aptamer than probe DNA, and the conformation of the aptamer therefore switches from a double-stranded to a G-quadruplex structure. As a result, MNPs labeled with probe DNA are released, and RLS intensity decreases. The method allows 8-OHdG to be detected with a linear response in the 32 pM - 12.0 nM concentration range and an 11 pM limit of detection (at 3.29SB/m, according to the recent recommendation of IUPAC). The MNPs can be reused 5 times by applying an external magnetic field for collection. The method was successfully applied to analyze human urine samples for its content of 8-OHdG. It was also found that the levels of 8-OHdG noticeably increased with the increase of the Air Quality Index. Conceivably, the method is a viable tool to investigate the relationship between 8-OHdG levels and the effect of air pollution. Graphical abstract A reusable sensing strategy was constructed to detect urinary 8-OHdG based on "turn-off" resonance light scattering. The LOD was as low as 11 pM. This study showed some preliminary data for the association between oxidative stress and air pollution.
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Affiliation(s)
- Lixia Tao
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China
| | - Qiaoli Yue
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China.
| | - Yining Hou
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China
| | - Yongping Wang
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China and Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Chen-Zhong Li
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, China. .,Nanobioengineering/Bioelectronics Laboratory, Department of Biomedical Engineering, Florida International University, Miami, FL, 33174, USA.
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11
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Simultaneous determination of five fluoroquinolones by the selective high performance liquid chromatography associating with sensitive resonance light scattering and mechanism study. Microchem J 2018. [DOI: 10.1016/j.microc.2017.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Pang X, Gao L, Feng H, Li X, Kong J, Li L. A peptide-based multifunctional fluorescent probe for Cu2+, Hg2+ and biothiols. NEW J CHEM 2018. [DOI: 10.1039/c8nj03624a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A peptide-based fluorescent probe (Dansyl-His-Pro-Gly-Trp-NH2, D-P4) bearing the dansyl fluorophore and tryptophan residue has been developed for the detection of Hg2+, Cu2+ and biothiols (–SH).
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Affiliation(s)
- Xuliang Pang
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Lei Gao
- Liaocheng People's Hospital
- Liaocheng 252000
- P. R. China
| | - Huiyun Feng
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
| | - Xudong Li
- Liaocheng People's Hospital
- Liaocheng 252000
- P. R. China
| | - Jinming Kong
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng 252059
- P. R. China
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13
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Ponram M, Balijapalli U, Sambath B, Iyer SK, B V, Cingaram R, Natesan Sundaramurthy K. Development of paper-based chemosensor for the detection of mercury ions using mono- and tetra-sulfur bearing phenanthridines. NEW J CHEM 2018. [DOI: 10.1039/c8nj00760h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new sulfur-bearing phenanthridine probes were synthesized and examined for their cation recognition abilities towards different cations in aqueous ACN solution and paper strips.
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Affiliation(s)
- Marimuthu Ponram
- Department of Chemistry
- SRM Easwari Engineering College
- Chennai 600 089
- India
| | - Umamahesh Balijapalli
- Centre of Organic Photonics and Electronics Research
- Kyushu University
- Fukuoka 819 0395
- Japan
- Department of Chemistry
| | - Baskaran Sambath
- Department of Chemistry
- Tsinghua University
- Beijing 100 084
- People's Republic of China
| | - Sathiyanarayanan Kulathu Iyer
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology (VIT University)
- Vellore 632 014
- India
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14
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Pan Z, Peng J, Zang X, Peng H, Xiao H, Bu L, Chen F, He Y, Chen Y, Wang X, Li S, Chen Y. High-performance liquid chromatography study of gatifloxacin and sparfloxacin using erythrosine as post-column resonance Rayleigh scattering reagent and mechanism study. LUMINESCENCE 2017; 33:417-424. [PMID: 29271102 DOI: 10.1002/bio.3429] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/30/2017] [Accepted: 10/17/2017] [Indexed: 11/07/2022]
Abstract
Herein, a highly selective high-performance liquid chromatography (HPLC) coupled with resonance Rayleigh scattering (RRS) method was developed to detect gatifloxacin (GFLX) and sparfloxacin (SPLX). GFLX and SPLX were first separated by HPLC, then, in pH 4.4 Britton-Robinson (BR) buffer medium, protonic quaternary ammonia cation of GFLX and SPLX reacted with erythrosine (ERY) to form 1:1 ion-association complexes, which resulted in a significant enhancement of RRS signal. The experimental conditions of HPLC and post-column RRS have been investigated, including detection wavelength, flow rate, pH, reacting tube length and reaction temperature. Reaction mechanism were studied in detail by calculating the distribution fraction. The maximum RRS signals for GFLX and SPLX were recorded at λex = λem = 330 nm. The detection limits were 3.8 ng ml-1 for GFLX and 17.5 ng ml-1 for SPLX at a signal-to-noise ratio of 3. The developed method was successfully applied to the determination of GFLX and SPLX in water samples. Recoveries from spiked water samples were 97.56-98.85%.
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Affiliation(s)
- Ziyu Pan
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Jingdong Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Xu Zang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Huanjun Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Huan Xiao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Lingli Bu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Fang Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Yan He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Yu Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Xiang Wang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Shiyu Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Yi Chen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
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15
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Xu D, Tang L, Tian M, He P, Yan X. A benzothizole-based fluorescent probe for Hg 2+ recognition utilizing ESIPT coupled AIE characteristics. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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17
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Affiliation(s)
- Wenhu Zhou
- Xiangya
School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Runjhun Saran
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Juewen Liu
- Department
of Chemistry, Water Institute, and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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18
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Electrochemical DNA probe for Hg2+ detection based on a triple-helix DNA and Multistage Signal Amplification Strategy. Biosens Bioelectron 2016; 86:907-912. [DOI: 10.1016/j.bios.2016.07.098] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/14/2016] [Accepted: 07/27/2016] [Indexed: 11/23/2022]
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19
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Yang Q, Liu J, Li B, Hu X, Liu S, Chen G. In-situ formation of ion-association nanoparticles induced enhancements of resonance Rayleigh scattering intensities for quantitative analysis of trace Hg(2+) ions in environmental samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 167:19-25. [PMID: 27235829 DOI: 10.1016/j.saa.2016.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 05/04/2016] [Accepted: 05/10/2016] [Indexed: 06/05/2023]
Abstract
In this paper, Hg(2+) ions are demonstrated to form anionic [HgI4](2-) complexes after interacting with massive amount of I(-) ions. Subsequently, the addition of tetradecyl pyridyl bromide (TPB) can make [HgI4](2-) anionic complexes react with univalent tetradecyl pyridyl cationic ions (TP(+)), forming dispersed ion-association complexes (TP)2(HgI4). Due to the extrusion action of water and Van der Waals force, the hydrophobic ion-association complexes aggregate together, forming dispersed nanoparticles with an average size of about 8.5nm. Meanwhile, resonance Rayleigh scattering (RRS) intensity is apparently enhanced due to the formation of (TP)2(HgI4) ion-association nanoparticles, contributing to a novel technique for Hg(2+) detection. The wavelength of 365nm is chosen as a detection wavelength and several conditions affecting the RRS responses of Hg(2+) are optimized. Under the optimum condition, the developed method is used for the determination of Hg(2+) in aqueous solution and the detection limit is estimated to be 0.8ngmL(-1). Finally, the practical application of the developed method can be confirmed through the detections of Hg(2+) in waste and river water samples with satisfactory results.
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Affiliation(s)
- Qingling Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Environmental Monitoring Center in Chongqing City, Chongqing 400020, China
| | - Jian Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Banglin Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Gangcai Chen
- Environmental Monitoring Center in Chongqing City, Chongqing 400020, China
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20
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Ng S, Lim HS, Ma Q, Gao Z. Optical Aptasensors for Adenosine Triphosphate. Theranostics 2016; 6:1683-702. [PMID: 27446501 PMCID: PMC4955066 DOI: 10.7150/thno.15850] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 05/09/2016] [Indexed: 12/16/2022] Open
Abstract
Nucleic acids are among the most researched and applied biomolecules. Their diverse two- and three-dimensional structures in conjunction with their robust chemistry and ease of manipulation provide a rare opportunity for sensor applications. Moreover, their high biocompatibility has seen them being used in the construction of in vivo assays. Various nucleic acid-based devices have been extensively studied as either the principal element in discrete molecule-like sensors or as the main component in the fabrication of sensing devices. The use of aptamers in sensors - aptasensors, in particular, has led to improvements in sensitivity, selectivity, and multiplexing capacity for a wide verity of analytes like proteins, nucleic acids, as well as small biomolecules such as glucose and adenosine triphosphate (ATP). This article reviews the progress in the use of aptamers as the principal component in sensors for optical detection of ATP with an emphasis on sensing mechanism, performance, and applications with some discussion on challenges and perspectives.
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Affiliation(s)
| | | | | | - Zhiqiang Gao
- Department of Chemistry, National University of Singapore, Singapore 117543
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21
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Nanomaterial-based strategies for enhanced mercury trace analysis in environmental and drinking waters. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.09.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Study on the interaction between three benzimidazole anthelmintics and eosin Y by high performance liquid chromatography associating with resonance light scattering and its application. Anal Bioanal Chem 2016; 408:5247-59. [DOI: 10.1007/s00216-016-9619-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/14/2016] [Accepted: 05/04/2016] [Indexed: 12/28/2022]
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23
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Liang L, Zhao L, Zeng X. Synthesis, optical, and chemical properties of a π-extended rhodol derivative and its derivatives with selectivity and sensitivity for sensing Hg2+in aqueous media. RSC Adv 2016. [DOI: 10.1039/c6ra17024b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A π-extended rhodol dye with optical signaling being controlled by two spirorings has been developed. A Hg2+-selective chemodosimeter based on this rhodol dye has been synthesized and evaluated.
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Affiliation(s)
- Lijuan Liang
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Liancheng Zhao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Xianshun Zeng
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
- School of Materials Science & Engineering
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24
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Groff K, Brown J, Clippinger AJ. Modern affinity reagents: Recombinant antibodies and aptamers. Biotechnol Adv 2015; 33:1787-98. [PMID: 26482034 DOI: 10.1016/j.biotechadv.2015.10.004] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/09/2015] [Accepted: 10/12/2015] [Indexed: 12/13/2022]
Abstract
Affinity reagents are essential tools in both basic and applied research; however, there is a growing concern about the reproducibility of animal-derived monoclonal antibodies. The need for higher quality affinity reagents has prompted the development of methods that provide scientific, economic, and time-saving advantages and do not require the use of animals. This review describes two types of affinity reagents, recombinant antibodies and aptamers, which are non-animal technologies that can replace the use of animal-derived monoclonal antibodies. Recombinant antibodies are protein-based reagents, while aptamers are nucleic-acid-based. In light of the scientific advantages of these technologies, this review also discusses ways to gain momentum in the use of modern affinity reagents, including an update to the 1999 National Academy of Sciences monoclonal antibody production report and federal incentives for recombinant antibody and aptamer efforts. In the long-term, these efforts have the potential to improve the overall quality and decrease the cost of scientific research.
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Affiliation(s)
- Katherine Groff
- PETA International Science Consortium Ltd., Society Building, 8 All Saints Street, London N1 9RL, England.
| | - Jeffrey Brown
- PETA International Science Consortium Ltd., Society Building, 8 All Saints Street, London N1 9RL, England.
| | - Amy J Clippinger
- PETA International Science Consortium Ltd., Society Building, 8 All Saints Street, London N1 9RL, England.
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25
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Li S, Liao L, Wu R, Yang Y, Xu L, Xiao X, Nie C. Resonance light scattering detection of fructose bisphosphates using uranyl-salophen complex-modified gold nanoparticles as optical probe. Anal Bioanal Chem 2015; 407:8911-8. [PMID: 26403237 DOI: 10.1007/s00216-015-9050-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 08/30/2015] [Accepted: 09/15/2015] [Indexed: 11/25/2022]
Abstract
In this paper, we report a resonance light scattering (RLS) method for the determination of fructose bisphosphates (FBPs) in water solution using fructose 1,6-bisphosphate (F-1,6-BP) as a model analyte without the procedure of extracting target analyte. The method used a type of modified gold nanoparticles (GNPs) as optical probe. The modified GNPs are uranyl-salophen-cysteamine-GNPs (U-Sal-Cy-GNPs) which are obtained through the acylation reaction of carboxylated salophen with cysteamine-capped GNPs (Cy-GNPs) to form Sal-Cy-GNPs and then the chelation reaction of uranyl with tetradentate ligand salophen in the Sal-Cy-GNPs. A FBP molecule is used easily to connect two U-Sal-Cy-GNPs to cause the aggregation of the GNPs by utilizing the specific affinity of uranyl-salophen complex to phosphate group, resulting in the production of strong RLS signal from the system. The amount of FBPs can be determined through detecting the RLS intensity change of the system. A linear range was found to be 2.5 to 75 nmol/L with a detection limit of 0.91 nmol/L under optimal conditions. The method has been successfully used to determine FBPs in real samples with the recoveries of 96.5-103.5 %.
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Affiliation(s)
- Shijun Li
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Lifu Liao
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China.
| | - Rurong Wu
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Yanyan Yang
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Li Xu
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Xilin Xiao
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Changming Nie
- College of Chemistry and Chemical Engineering, University of South China, Hengyang, Hunan, 421001, China
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26
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Zhu G, Zhang CY. Functional nucleic acid-based sensors for heavy metal ion assays. Analyst 2015; 139:6326-42. [PMID: 25356810 DOI: 10.1039/c4an01069h] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heavy metal contaminants such as lead ions (Pb(2+)), mercury ions (Hg(2+)) and silver ions (Ag(+)) can cause significant harm to humans and generate enduring bioaccumulation in ecological systems. Even though a variety of methods have been developed for Pb(2+), Hg(2+) and Ag(+) assays, most of them are usually laborious and time-consuming with poor sensitivity. Due to their unique advantages of excellent catalytic properties and high affinity for heavy metal ions, functional nucleic acids such as DNAzymes and aptamers show great promise in the development of novel sensors for heavy metal ion assays. In this review, we summarize the development of functional nucleic acid-based sensors for the detection of Pb(2+), Hg(2+) and Ag(+), and especially focus on two categories including the direct assay and the amplification-based assay. We highlight the emerging trends in the development of sensitive and selective sensors for heavy metal ion assays as well.
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Affiliation(s)
- Guichi Zhu
- Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Guangdong 518055, China.
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27
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Zhan S, Xu H, Zhang D, Xia B, Zhan X, Wang L, Lv J, Zhou P. Fluorescent detection of Hg2+ and Pb2+ using GeneFinder™ and an integrated functional nucleic acid. Biosens Bioelectron 2015; 72:95-9. [PMID: 25966463 DOI: 10.1016/j.bios.2015.04.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 04/03/2015] [Accepted: 04/10/2015] [Indexed: 12/25/2022]
Abstract
This paper reports a simple fluorescent assay for the determination of Hg(2+) and Pb(2+) by using a DNA intercalator GeneFinder™ (GF) and an integrated functional nucleic acid (FNA). In the absence of Hg(2+) and Pb(2+), GF intercalated with the FNA and released moderate strong fluorescence. While in the presence of Hg(2+) or Pb(2+), the FNA would be induced to form T-Hg(2+)-T or G-quadruplex structure, interacted with which the GF would exhibit extremely strong or very weak fluorescence. By monitoring the fluorescence changes upon addition of these two ions, the Hg(2+) and Pb(2+) could be selectively detected as low as 3.23 ppb and 2.62 ppb. As the main advantage of this assay is simplicity and the feasibility was demonstrated by detecting Hg(2+) and Pb(2+) in spiked water samples, this assay holds great potential for the development of a cost effective and useful tool for environmental monitoring.
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Affiliation(s)
- Shenshan Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Hanchu Xu
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Dongwei Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Bing Xia
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Xuejia Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lumei Wang
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jing Lv
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Pei Zhou
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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28
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Detection of mercury ions (II) based on non-cross-linking aggregation of double-stranded DNA modified gold nanoparticles by resonance Rayleigh scattering method. Biosens Bioelectron 2015; 65:360-5. [DOI: 10.1016/j.bios.2014.10.061] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/14/2014] [Accepted: 10/27/2014] [Indexed: 12/20/2022]
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29
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Xu C, Liao L, He Y, Wu R, Li S, Yang Y. Resonance light scattering detection of uranium based on its reaction with a Schiff base containing tetradentate ligand and phosphate groups to form supramolecular polymer. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-3929-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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30
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Singh R, Hong S, Jang J. Mechanical desorption of immobilized proteins using carbon dioxide aerosols for reusable biosensors. Anal Chim Acta 2015; 853:588-595. [DOI: 10.1016/j.aca.2014.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 10/30/2014] [Accepted: 11/05/2014] [Indexed: 10/24/2022]
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31
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Feng DQ, Liu G, Wang W. A novel biosensor for copper(ii) ions based on turn-on resonance light scattering of ssDNA templated silver nanoclusters. J Mater Chem B 2015; 3:2083-2088. [DOI: 10.1039/c4tb01940g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new ultrasensitive biosensor for copper(ii) ions was first developed based on turn-on resonance light scattering (RLS) of ssDNA templated silver nanoclusters through anti-galvanic reduction (AGR).
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Affiliation(s)
- Da-Qian Feng
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
| | - Guoliang Liu
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
| | - Wei Wang
- School of Chemical and Biological Engineering
- Yancheng Institute of Technology
- China
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32
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Gan X, Zhao H, Chen S, Quan X. Electrochemical DNA sensor for specific detection of picomolar Hg(ii) based on exonuclease III-assisted recycling signal amplification. Analyst 2015; 140:2029-36. [DOI: 10.1039/c5an00082c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An ultrasensitive methodology was successfully developed for the quantitative detection of picomolar Hg2+ based on the combination of thymine–Hg2+–thymine (T–Hg2+–T) coordination chemistry and exonuclease III-aided recycling signal amplification.
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Affiliation(s)
- Xiaorong Gan
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Huimin Zhao
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Shuo Chen
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
| | - Xie Quan
- Dalian University of Technology
- School of Environmental and Biological Science and Technology
- Dalian
- China
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33
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He Y, Liao L, Xu C, Wu R, Li S, Yang Y. Determination of ATP by resonance light scattering using a binuclear uranyl complex and aptamer modified gold nanoparticles as optical probes. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1350-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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34
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A novel label-free electrochemical sensor for Hg2+ based on the catalytic formation of metal nanoparticle. Biosens Bioelectron 2014; 59:1-5. [DOI: 10.1016/j.bios.2014.02.074] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/16/2014] [Accepted: 02/27/2014] [Indexed: 01/02/2023]
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35
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Graphene quantum dots and the resonance light scattering technique for trace analysis of phenol in different water samples. Talanta 2014; 125:341-6. [DOI: 10.1016/j.talanta.2014.03.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/26/2014] [Accepted: 03/10/2014] [Indexed: 11/18/2022]
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36
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A resonance light scattering method for the determination of uranium based on a water-soluble salophen and oxalate. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3225-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Liu X, Yu X, Luo X. Ultrasensitive iodide detection based on the resonance light scattering of histidine-stabilized gold nanoclusters. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1268-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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38
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A convenient sandwich assay of thrombin in biological media using nanoparticle-enhanced fluorescence polarization. Biosens Bioelectron 2014; 56:231-6. [PMID: 24508546 DOI: 10.1016/j.bios.2014.01.021] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 12/24/2013] [Accepted: 01/13/2014] [Indexed: 11/21/2022]
Abstract
A new aptamer biosensor was presented for the detection of thrombin in this work, which was based on fluorescence polarization (FP) using silica nanoparticles as enhancement probe. The silica nanoparticles covered by streptavidin were tagged with a thrombin aptamer (5'-biotin-GGTTGGTGTGGTTGG-3'), which was bound to the surface of silica nanoparticle through the specific interaction between streptavidin and biotin. In the presence of thrombin, it induced the aptamer to form quadruplex structure. When the other thrombin aptamer labeled with fluorescein (5'-FAM-AGTCCGTGGTAGGGCAGGTTGGGGTGACT-3') was added to the above system, a sandwich structure can form at the surface of silica nanoparticles. The fluorescence polarization was therefore enhanced and quantification between fluorescence polarization signal and concentration of thrombin was built. The sensor provided a linear range from 0.6 to 100 nM for thrombin with a detection limit of 0.20 nM (3.29 SB/m, according to the recent recommendation of IUPAC) in a homogeneous media. The same linear range was obtained in spiked human serum samples with a slightly higher detection limit (0.26 nM), demonstrating high anti-interference of the sensor in a complex biological sample matrix. And the sensor can be used to monitor spiked concentration of thrombin level in real human plasma with satisfactory results obtained.
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39
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Yao D, Liang A, Yin W, Jiang Z. Resonance light scattering determination of trace bisphenol A with signal amplification by aptamer-nanogold catalysis. LUMINESCENCE 2013; 29:516-21. [PMID: 24123862 DOI: 10.1002/bio.2578] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 06/12/2013] [Accepted: 08/05/2013] [Indexed: 01/02/2023]
Abstract
HAuCl4 was reduced by sodium citrate to prepare 10 nm gold nanoparticles (AuNPs) that were modified by the bisphenol A aptamer (Apt) to obtain an aptamer-nanogold probe (Apt-AuNP) for bisphenol A (BPA). The probes were aggregated nonspecifically to form large clusters, which showed a strong resonance light scattering (RLS) peak at 520 nm, under preparation conditions (pH 7.6 Na2HPO4-NaH2PO4 buffer and ultrasonication). Upon addition of BPA, the probe reacted specifically to form dispersed BPA-Apt-AuNP conjugates that exhibited strong catalysis of the two particle reactions of glucose-Cu(II) and hydrazine hydrochloride-Cu(II) with a strong RLS peak at 360 nm and 510 nm respectively. When the BPA concentration increased, the RLS intensity at 360 nm and 510 nm increased respectively. Accordingly, two new and highly-sensitive RLS methods were established for the detection of BPA, using the Apt-AuNP catalytic amplification.
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Affiliation(s)
- Dongmei Yao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, 541004, China
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40
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A reusable and sensitive biosensor for total mercury in canned fish based on fluorescence polarization. Talanta 2013; 117:81-6. [PMID: 24209314 DOI: 10.1016/j.talanta.2013.08.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 08/12/2013] [Accepted: 08/14/2013] [Indexed: 11/21/2022]
Abstract
In this work, we developed a sensitive and selective sensor technique for total mercury (Hg) detection in canned fish samples based on the fluorescence polarization (FP) method. The detection principle was that ssDNA containing thymine (T) bases was modified on magnetic nanoparticles (MNPs), which were used as enhancement probe. In the presence of Hg(2+), the ssDNA on MNPs can hybridize with the fluorophore labeled aptamer owing to the specific interaction between T bases and Hg(2+). The formation of thymine-Hg(2+)-thymine (T-Hg(2+)-T) complexes leads to the molar mass increase of fluorophore molecules, resulting in the enhancement of FP signal. The increase of FP was in a good linearity with the concentration of Hg(2+) in range of 2.0 nM-1.0 mM and the limit of detection was 0.49 nM (3.29 SB/m, according to the recent recommendation of IUPAC). Moreover, the proposed biosensor can be reused for 6 cycling times and was successfully applied in monitoring Hg(2+) in real samples.
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41
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Su D, Yang X, Xia Q, Chai F, Wang C, Qu F. Colorimetric detection of Hg2+ using thioctic acid functionalized gold nanoparticles. RSC Adv 2013. [DOI: 10.1039/c3ra43276a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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42
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Liu G, Feng DQ, Zheng W, Chen T, Li D. An anti-galvanic replacement reaction of DNA templated silver nanoclusters monitored by the light-scattering technique. Chem Commun (Camb) 2013; 49:7941-3. [DOI: 10.1039/c3cc44126a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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