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Wei S, Wang X, Wang F, Hao X, Li H, Su Z, Guo Y, Shi X, Liu X, Li J, Zhao C. Colorimetric detection of Salmonella typhimurium based on hexadecyl trimethyl ammonium bromide-induced supramolecular assembly of β-cyclodextrin-capped gold nanoparticles. Anal Bioanal Chem 2022; 414:6069-6076. [PMID: 35689117 DOI: 10.1007/s00216-022-04166-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/07/2022] [Accepted: 06/03/2022] [Indexed: 11/24/2022]
Abstract
We developed an effective and specific colorimetric strategy to detect Salmonella typhimurium (S. typhimurium) based on hexadecyl trimethyl ammonium bromide (CTAB)-induced supramolecular assembly of β-cyclodextrin-capped gold nanoparticles (β-CD-AuNPs). In this study, ssDNA aptamer of S. typhimurium could combine with CTAB to form the supramolecular ssDNA-CTAB composite, so the ssDNA aptamer was applied to control the concentration of CTAB. In the presence of S. typhimurium, ssDNA aptamers selectively bound to S. typhimurium but not to CTAB, leading to the host-guest chemistry reaction of CTAB and β-CD resulting in β-CD-AuNP supramolecular assembly aggregation with an obvious color change. The ratio of absorption at 650 and 520 nm (A650nm/A520nm) has a linear correlation to the log scale of the concentration of the bacteria (1 × 102-1 × 107 CFU/mL) with a low limit of detection (LOD) of 13 CFU/mL. In addition, this optical sensor has good selectivity and practicability. In milk samples, the recovery was 93.55-111.32%, which suggested its potential application in real samples.
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Affiliation(s)
- Shengnan Wei
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Xuechen Wang
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Feng Wang
- Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Xinqing Hao
- Hospital of Stomatology, Jilin University, Changchun, 130021, China
| | - Hang Li
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Zhenyue Su
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Yuanyuan Guo
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Xuening Shi
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Xingxing Liu
- The Department of Cadre Ward, The First Hospital of Jilin University, Changchun, 130021, China.
| | - Juan Li
- School of Public Health, Jilin University, Changchun, 130021, China.
| | - Chao Zhao
- School of Public Health, Jilin University, Changchun, 130021, China.
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Qasem M, Kurdi RE, Patra D. Selective resonance Rayleigh scattering spectroscopic determination of persulfate using cetyl trimethylammonium bromide capped cuo nanograins. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104701] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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3
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Qasem M, El Kurdi R, Patra D. Glutathione-capped CuO nanoparticles for the determination of cystine using resonance Rayleigh scattering spectroscopy. Mikrochim Acta 2020; 187:364. [DOI: 10.1007/s00604-020-04331-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/15/2020] [Indexed: 11/29/2022]
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Enhanced Protection of Biological Membranes during Lipid Peroxidation: Study of the Interactions between Flavonoid Loaded Mesoporous Silica Nanoparticles and Model Cell Membranes. Int J Mol Sci 2019; 20:ijms20112709. [PMID: 31159465 PMCID: PMC6600359 DOI: 10.3390/ijms20112709] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/07/2019] [Accepted: 05/30/2019] [Indexed: 12/13/2022] Open
Abstract
Flavonoids, polyphenols with anti-oxidative activity have high potential as novel therapeutics for neurodegenerative disease, but their applicability is rendered by their poor water solubility and chemical instability under physiological conditions. In this study, this is overcome by delivering flavonoids to model cell membranes (unsaturated DOPC) using prepared and characterized biodegradable mesoporous silica nanoparticles, MSNs. Quercetin, myricetin and myricitrin have been investigated in order to determine the relationship between flavonoid structure and protective activity towards oxidative stress, i.e., lipid peroxidation induced by the addition of hydrogen peroxide and/or Cu2+ ions. Among investigated flavonoids, quercetin showed the most enhanced and prolonged protective anti-oxidative activity. The nanomechanical (Young modulus) measurement of the MSNs treated DOPC membranes during lipid peroxidation confirmed attenuated membrane damage. By applying a combination of experimental techniques (atomic force microscopy—AFM, force spectroscopy, electrophoretic light scattering—ES and dynamic light scattering—DLS), this work generated detailed knowledge about the effects of flavonoid loaded MSNs on the elasticity of model membranes, especially under oxidative stress conditions. Results from this study will pave the way towards the development of innovative and improved markers for oxidative stress-associated neurological disorders. In addition, the obtained could be extended to designing effective delivery systems of other high potential bioactive molecules with an aim to improve human health in general.
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Du G, Wang L, Zhang D, Ni X, Zhou X, Xu H, Xu L, Wu S, Zhang T, Wang W. Colorimetric aptasensor for progesterone detection based on surfactant-induced aggregation of gold nanoparticles. Anal Biochem 2016; 514:2-7. [PMID: 27615801 DOI: 10.1016/j.ab.2016.09.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 02/07/2023]
Abstract
This paper proposes an aptasensor for progesterone (P4) detection in human serum and urine based on the aggregating behavior of gold nanoparticles (AuNPs) controlled by the interactions among P4-binding aptamer, target P4 and cationic surfactant hexadecyltrimethylammonium bromide (CTAB). The aptamer can form an aptamer-P4 complex with P4, leaving CTAB free to aggregate AuNPs in this aptasensor. Thus, the sensing solution will turn from red (520 nm) to blue (650 nm) in the presence of P4 because P4 aptamers are used up firstly owing to the formation of an aptamer-P4 complex, leaving CTAB free to aggregate AuNPs. However, in the absence of P4, CTAB combines with aptamers so that AuNPs still remain dispersed. Therefore, this assay makes it possible to detect P4 not only by absorbance measurement but also through naked eyes. By monitoring the variation of absorbance and color, a CTAB-induced colorimetric assay for P4 detection was established with a detection limit of 0.89 nM. Besides, the absorbance ratio A650/A520 has a linear correlation with the P4 concentration of 0.89-500 nM. Due to the excellent recoveries in serum and urine, this biosensor has great potential with respect to the visual and instrumental detection of P4 in biological fluids.
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Affiliation(s)
- Gaoshang Du
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Lumei Wang
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Dongwei Zhang
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Xuan Ni
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Xiaotong Zhou
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Hanyi Xu
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Lurong Xu
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Shijian Wu
- Shanghai Environmental Monitoring Center, Shanghai 200235, PR China
| | - Tong Zhang
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Wenhao Wang
- School of Agriculture and Biology, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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Determination of thiram using gold nanoparticles and Resonance Rayleigh scattering method. Talanta 2015; 141:143-9. [DOI: 10.1016/j.talanta.2015.03.061] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 03/26/2015] [Accepted: 03/28/2015] [Indexed: 01/11/2023]
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Peng H, Zhou M, Peng J. A Highly Sensitive Resonance Rayleigh Scattering Method for the Determination of Vitamin C Based on the Formation of Zirconium Hexacyanoferrate (II) Nanoparticles. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0263-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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8
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Wang Y, Bi S, Zhou H, Zhao T. Resonance light scattering spectroscopy of procyanidin-CPB-DNA ternary system and its potential application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:255-260. [PMID: 25819313 DOI: 10.1016/j.saa.2015.03.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/03/2014] [Accepted: 03/01/2015] [Indexed: 06/04/2023]
Abstract
A new method for the determination of calf thymus DNA at nanogram level was proposed based on the enhanced resonance light scattering (RLS) signals of DNA in the presence of procyanidin and cetylpyridinium bromide dihydrate (CPB). Under the experimental conditions, the RLS intensity of DNA at 291.0 nm was greatly enhanced by procyanidin-CPB at pH 7.0. There was a good linear relationship (r=0.9993) between the enhanced RLS intensity (ΔI(RLS)) and DNA concentration of 0.0084-3.36 μg mL(-1). The limit of detection (LOD) was 2.27 ng mL(-1) (3S0/S). Three synthetic DNA samples were measured with satisfactory, and the recovery was 102.3-107.2%.
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Affiliation(s)
- Yu Wang
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
| | - Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
| | - Huifeng Zhou
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
| | - Tingting Zhao
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
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Parham H, Pourreza N, Marahel F. Resonance Rayleigh scattering method for determination of 2-mercaptobenzothiazole using gold nanoparticles probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:308-314. [PMID: 26143323 DOI: 10.1016/j.saa.2015.06.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 06/05/2015] [Accepted: 06/28/2015] [Indexed: 06/04/2023]
Abstract
A sensitive, simple and novel method was developed to determine 2-mercaptobenzothiazole (2MBT) in water samples. This method was based on the interaction between gold nanoparticles (AuNPs) and 2MBT followed by increasing of the resonance Rayleigh scattering (RRS) intensity of nanoparticles. The change in RRS intensity (ΔIRRS) was linearly correlated to the concentration of 2MBT over the ranges of 5.0-100.0 and 100.0-300.0 μg L(-1). 2MBT can be measured in a short time (5 min) without any complicated or time-consuming sample pretreatment process. Parameters that affect the RRS intensities such as pH, concentration of AuNPs, standing time, electrolyte concentration, and coexisting substances were systematically investigated and optimized. Interference tests showed that the developed method has a very good selectivity and could be used conveniently for determination of 2MBT. The limit of detection (LOD) and limit of quantification (LOQ) were 1.0 and 3.0 μg L(-1), respectively. Relative standard deviations (RSD) for 20.0 and 80.0 μg L(-1) of 2MBT were 1.1 and 2.3, respectively. Possible mechanisms for the RRS changes of AuNPs in the presence of 2MBT were discussed and the method was successfully applied for the analysis of real water samples.
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Affiliation(s)
- Hooshang Parham
- Chemistry Department, Faculty of Sciences, Shahid Chamran University, 6135714168 Ahvaz, Iran.
| | - Nahid Pourreza
- Chemistry Department, Faculty of Sciences, Shahid Chamran University, 6135714168 Ahvaz, Iran
| | - Farzaneh Marahel
- Chemistry Department, Faculty of Sciences, Shahid Chamran University, 6135714168 Ahvaz, Iran
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Tian J, Zhang Q, Liu S, Yang J, Teng P, Zhu J, Qiao M, Shi Y, Duan R, Hu X. Study on erythrosine-phen-Cd(II) systems by resonance Rayleigh scattering, absorption spectra and their analytical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:15-20. [PMID: 25579798 DOI: 10.1016/j.saa.2014.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 06/04/2023]
Abstract
In pH 7.0-8.0 KH2PO4-Na2HPO4 buffer solution, Cd(II) reacted with 1,10-phenanthroline to form chelate cation [Cd(phen)3]2+, which further reacted with anion of erythrosine to form ternary ion-association complex through electrostatic attraction and hydrophobic effect. This process could result in remarkable absorption spectra change and produce obvious fading reaction at 528 nm. Absorbance change (ΔA) of system was directly proportional to the concentration of Cd(II). Hereby, a highly sensitive spectrophotometric method for the determination of Cd(II) was established. The molar absorption coefficient was 2.29×10(5) L mol(-1) cm(-1) and the detection limit of Cd(II) was 26.5 ng mL(-1). Furthermore, the resonance Rayleigh scattering (RRS) of this system with two peaks located at 371 and 590 nm enhanced significantly, and second-order scattering (SOS) and frequence doubling scattering (FDS) of this system changed notably at 640 and 350 nm, respectively. Under the optimum conditions, the scattering intensities (ΔIRRS, ΔIDWO-RRS, ΔISOS and ΔIFDS) had good linear relationship with the concentration of Cd(II) in certain ranges. The detection limits of Cd(II) were 1.27 ng mL(-1), 1.39 ng mL(-1), 4.03 ng mL(-1), 5.92 ng mL(-1) and 14.7 ng mL(-1) for dual-wavelength overlapping resonance Rayleigh scattering (DWO-RRS), RRS (371 nm), RRS (590 nm), SOS and FDS, respectively. In addition, the suitable reaction conditions and effects of coexisting substances were investigated. The methods had been successfully applied to the determination of Cd(II) in environmental water samples. The recovery range was between 93.0% and 103.0% and the relative standard deviation (RSD) was between 2.5% and 4.3%. The results were in agreement with those obtained from atomic absorption spectroscopy.
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Affiliation(s)
- Jing Tian
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Fuling Environmental Monitoring Center, Fuling, Chongqing 408000, China
| | - Qiqi Zhang
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jidong Yang
- College of Chemical and Environmental Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China
| | - Ping Teng
- Fuling Environmental Monitoring Center, Fuling, Chongqing 408000, China
| | - Jinghui Zhu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Man Qiao
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ying Shi
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ruilin Duan
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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Wang Y, Gu Y, Ni Y, Kokot S. Inhibition effect of graphene oxide on the catalytic activity of acetylcholinesterase enzyme. LUMINESCENCE 2015; 30:940-6. [DOI: 10.1002/bio.2841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/27/2014] [Accepted: 11/30/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Yong Wang
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
- Department of Chemistry; Nanchang University; Nanchang 330031 China
| | - Yao Gu
- Department of Chemistry; Nanchang University; Nanchang 330031 China
| | - Yongnian Ni
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang 330047 China
- Department of Chemistry; Nanchang University; Nanchang 330031 China
| | - Serge Kokot
- School of Chemistry, Physics and Mechanical Engineering; Queensland University of Technology; Brisbane 4001 Australia
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12
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Resonance Rayleigh scattering method for determination of ethion using silver nanoparticles as probe. Talanta 2015; 131:570-6. [DOI: 10.1016/j.talanta.2014.08.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 07/31/2014] [Accepted: 08/01/2014] [Indexed: 01/27/2023]
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Bi S, Wang T, Zhao T, Wang Y. The resonance Rayleigh light scattering spectral investigation on the interaction of DNA with camellia sinensis in the presence of CPC and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:335-339. [PMID: 24637271 DOI: 10.1016/j.saa.2014.02.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 01/29/2014] [Accepted: 02/11/2014] [Indexed: 06/03/2023]
Abstract
A novel method with high sensitivity was designed for the determination of trace nucleic acids by using cationic surfactant cetylpyridinium chloride (CPC) and camellia sinensis (CS) as resonance Rayleigh light scattering (RLS) probes. It was found DNA could combine with CS and CPC in Tris-HCl buffer (pH=7.4). Under optimum conditions, the RLS intensity of DNA can be enhanced by CPC-CS obviously at 294nm, and the enhanced RLS intensity was directly proportional to DNA concentration in the range from 0.024 to 3.48μgmL(-1) with a good linear relationship (r=0.9940). The limit of detection (LOD) was 1.49ngmL(-1) (S/N=3). In addition, the effects of some interferences including K(+), Na(+), Mg(2+), Zn(2+), Cu(2+), Ca(2+) and glucose on the determination were studied. The developed RLS assay was successfully applied to three synthetic samples to measure DNA, the recovery was 94.7-106.3% and RSD was 0.58-3.33%.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
| | - Tianjiao Wang
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
| | - Tingting Zhao
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
| | - Yu Wang
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China
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Zhu J, Liu S, Liu Z, Li Y, Tian J, Hu X. A highly sensitive and selective assay of doxycycline by dualwavelength overlapping resonance Rayleigh scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:237-242. [PMID: 24486868 DOI: 10.1016/j.saa.2013.12.114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/27/2013] [Accepted: 12/30/2013] [Indexed: 06/03/2023]
Abstract
A dual-wavelength overlapping resonance Rayleigh scattering (DWO-RRS) method was developed and validated for highly sensitive and selective assay of doxycycline residues in several meat samples. The response signals were dependent on the specific multi-site coordination between lanthanum(III) and doxycycline (DOTC). And La(III)-DOTC complex would further aggregate to form [La(III)-DOTC]n nanoparticles, resulting in the occurrence of two new scattering peaks. Notably, with the addition of DOTC, the increments of both of these two wavelengths were proportional to the concentration of DOTC over the ranges of 3.9-4.0×10(3) nmol L(-1) (1.7-1.8×10(3) μg/kg). The detection limit of DWO-RRS was 1.1 nmol L(-1) (0.5 μg/kg), which was lower than or comparable to most of the published methods. Additionally, the generating mechanisms of multi-response RRS signals were discussed and a semi-empirical principle was established for better design of multi-response RRS probes.
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Affiliation(s)
- Jinghui Zhu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shaopu Liu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Zhongfang Liu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yuanfang Li
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jing Tian
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiaoli Hu
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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15
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Bi S, Wang T, Zhao T, Wang Y, Pang B. Study of the interaction of salmon sperm DNA with myricitrin-CPB based on the enhanced resonance light scattering signal and its potential application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 112:397-402. [PMID: 23688588 DOI: 10.1016/j.saa.2013.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 03/24/2013] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
A new assay of salmon sperm DNA at nanogram level was established based on enhanced resonance light scattering (RLS) signals of DNA with myricitrin and cetylpyridinium bromide dihydrate (CPB). The RLS spectral characteristics of DNA with myricitrin-CPB and the optimum conditions for determination of DNA samples have been studied. At pH 7.4, myricitrin-CPB could enhance the intensity of RLS signal of DNA at 468 nm. The enhanced RLS intensity was directly proportional to DNA concentration in the range of 0.076-4.2 μg mL(-1) with a good linear relationship (r=0.9944). The detection limit was 4.1 ng mL(-1). The synthetic samples were analyzed with satisfactory results that the recovery was 100.9-102.6% and RSD was 1.4-2.1%, which proved that the new method was reliable and applicable.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
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16
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Simple and sensitive determination of papain by resonance light-scattering with CdSe quantum dots. Colloids Surf B Biointerfaces 2013; 102:146-51. [DOI: 10.1016/j.colsurfb.2012.07.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 07/17/2012] [Accepted: 07/18/2012] [Indexed: 11/18/2022]
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17
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Bi S, Wang Y, Wang T, Pang B, Zhao T. The analytical application and spectral investigation of DNA-CPB-emodin and sensitive determination of DNA by resonance Rayleigh light scattering technique. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 101:233-238. [PMID: 23103464 DOI: 10.1016/j.saa.2012.09.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/25/2012] [Accepted: 09/26/2012] [Indexed: 06/01/2023]
Abstract
A new sensitive DNA probe containing cetylpyridinium bromide (CPB) and emodin (an effective component of Chinese herbal medicine) was developed using the resonance Rayleigh light scattering (RLS) technique. A novel assay was first developed to detect DNA at nanogram level based on the ternary system of DNA-CPB-emodin. The RLS signal of DNA was enhanced remarkably in the presence of emodin-CPB, and the enhanced RLS intensity at 340.0 nm was in direct proportion to DNA concentration in the range of 0.01-2.72 μg mL(-1) with a good linear relationship. The detection limit was 1.5 ng mL(-1). Three synthetic DNA samples were measured obtaining satisfactory results, the recovery was 97.6-107.3%.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
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