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Samiey B, Tehrani AD. Study of Adsorption of Janus Green B and Methylene Blue on Nanocrystalline Cellulose. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201400093] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Chatterjee S, Kumar GS. Targeting the heme proteins hemoglobin and myoglobin by janus green blue and study of the dye–protein association by spectroscopy and calorimetry. RSC Adv 2014. [DOI: 10.1039/c4ra06600f] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The binding of the phenazinium dye janus green blue (JGB) to two heme proteins, hemoglobin (Hb) and myoglobin (Mb), was studied by biophysical and microcalorimetry techniques.
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Affiliation(s)
- Sabyasachi Chatterjee
- Biophysical Chemistry Laboratory
- Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata 700 032, India
| | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory
- Chemistry Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata 700 032, India
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3
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Sun W, Shang Z, Li Q, Jiao K. A Linear Sweep Voltammetric Determination of DNA with Methyl Violet. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200500183] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Bi S, Wang Y, Pang B, Yan L, Wang T. An investigation on the interaction of DNA with hesperetin/apigenin in the presence of CTAB by resonance Rayleigh light scattering technique and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 90:158-164. [PMID: 22336048 DOI: 10.1016/j.saa.2012.01.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 12/31/2011] [Accepted: 01/16/2012] [Indexed: 05/31/2023]
Abstract
Two new systems for measuring DNA at nanogram levels by a resonance Rayleigh light scattering (RLS) technique with a common spectrofluorometer were proposed. In the presence of cetyltrimethylammonium bromide (CTAB), the interaction of DNA with hesperetin and apigenin (two effective components of Chinese herbal medicine) could enhance RLS signals with the maximum peak at 363 and 433 nm respectively. The enhanced intensity of RLS was directly proportional to the concentration of DNA in the range of 0.022-4.4 μg mL(-1) for DNA-CTAB-hesperetin system and 0.013-4.4 μg mL(-1) for DNA-CTAB-apigenin system. The detection limit was 2.34 ng mL(-1) and 2.97 ng mL(-1) respectively. Synthetic samples were measured satisfactorily. The recovery of DNA-CTAB-hesperetin system was 97.3-101.9% and that of DNA-CTAB-apigenin system was 101.2-109.5%.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun, PR China.
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5
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Wang J, Zhang Q, De Liu Z, Huang CZ. Calf thymus DNA-stabilized polythiophene fluorescence probe for label-free detection of spermine. Analyst 2012; 137:5565-70. [DOI: 10.1039/c2an35952a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Wu L, Mu D, Gao D, Deng X, Tian Y, Zhang H, Yu A. Determination of protein by resonance light scattering technique using dithiothreitol-sodium dodecylbenzene sulphonate as probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:178-181. [PMID: 19019725 DOI: 10.1016/j.saa.2008.09.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Revised: 08/06/2008] [Accepted: 09/26/2008] [Indexed: 05/27/2023]
Abstract
The resonance light scattering (RLS) spectra of bovine serum albumin (BSA)-dithiothreitol (DTT)-sodium dodecylbenzene sulphonate (SDBS) and its analytical application were investigated. The RLS intensity of this system can be effectively enhanced in the presence of BSA. Based on the enhanced RLS intensity, a simple assay for BSA was developed. The experimental results indicate that the enhanced RLS intensity is proportional to the concentration of BSA in the range from 1.0 x 10(-8) to 7.5 x 10(-7) mol L(-1) with the determination limit of 5.0 x 10(-9) mol L(-1). The effects of pH, concentration of SDBS and DTT on the RLS enhancement were discussed. Most metal ions have little interference on the determination of BSA. Some synthetic and real samples were analyzed, and the results obtained were in good agreement with those obtained by Bradford method.
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Affiliation(s)
- Lihang Wu
- College of Chemistry, Jilin University, Changchun 130012, PR China
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7
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Mohammadi-Bardbori A, Nejati M, Esmaeili J, Ghafari H, Ghazi-Khansari M. Comparative Measurement ofIn VitroParaquat and Aflatoxin B1 Cytotoxicity Using Three Different Cytotoxicity Assays in Pheochromocytoma Cells (PC-12). Toxicol Mech Methods 2008; 18:685-9. [DOI: 10.1080/15376510701392377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Afshin Mohammadi-Bardbori
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Nejati
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jamileh Esmaeili
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Homanaz Ghafari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Ghazi-Khansari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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8
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Guo C, Wu X, Xu W, Yang J. Resonance light-scattering enhancement effect of the protein-Y3+-TTA-SLS system and its analytical application. LUMINESCENCE 2008; 23:404-9. [DOI: 10.1002/bio.1053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Li J, Li M, Li X, Tang J, Kang J, Zhang H, Zhang Y. Study on the resonance light-scattering spectrum of lysozyme–DNA/CdTe nanoparticles system. Colloids Surf B Biointerfaces 2008; 67:79-84. [DOI: 10.1016/j.colsurfb.2008.07.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 07/09/2008] [Accepted: 07/30/2008] [Indexed: 11/25/2022]
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10
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Interaction among Cadmium Sulfide Nanoparticles, Acridine Orange, and Deoxyribonucleic Acid in Fluorescence Spectra and a Method for Deoxyribonucleic Acid Determination. J Fluoresc 2008; 18:727-32. [DOI: 10.1007/s10895-008-0335-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Accepted: 01/30/2008] [Indexed: 10/22/2022]
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11
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Cai C, Chen X. Spectral studies on the interaction of acid chrome blue K with nucleic acids in the presence of cetyltrimethylammonium bromide and the confirmation of combined points. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:592-8. [PMID: 17611144 DOI: 10.1016/j.saa.2007.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Revised: 04/19/2007] [Accepted: 05/07/2007] [Indexed: 05/16/2023]
Abstract
The interaction of Acid chrome blue K (ACBK) with nucleic acids in weak basic medium was studied in the presence of cetyltrimethylammonium bromide (CTMAB) based on the measurements of resonance light scattering (RLS), UV-vis, NMR spectra, etc. In hexamethylene tetramine (HMTA) buffer (pH 7.45), ACBK and nucleic acids react with CTMAB to form a ternary complex, which results in strong enhanced RLS signals characterized by four peaks at 285, 335, 405.5 and 548nm. Mechanistic studies show that the enhanced RLS stems from the aggregation of ACBK on nucleic acids through the bridged and synergistic effect of CTMAB. With the enhanced RLS signals at the best wavelength at 335nm, the enhanced RLS intensity is proportional to the concentration of nucleic acids in a wide range. The lowest limit of determination was 7.52ngml(-1), three synthetic samples were analyzed satisfactorily. And the combined points of the anionic dye ACBK with nucleic acids-CTMAB have been tentatively confirmed through the measurement of 1H NMR spectra.
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Affiliation(s)
- Changqun Cai
- Institute of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
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12
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Chen Z, Liao X, Zhu L, Liu J, Han Y. Micro-determination of nucleic acids with a simple probe manganese chloride based on the fine enhanced resonance light scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:263-8. [PMID: 17327143 DOI: 10.1016/j.saa.2006.11.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 10/30/2006] [Accepted: 11/17/2006] [Indexed: 05/14/2023]
Abstract
Manganese chloride can form large particles with nucleic acids by electrostatic forces, which results in strong enhancement of resonance light scattering (RLS) signals. Based on this phenomenon, a novel and very simple assay of DNA was established. The work conditions have been investigated including the concentration of probe, the acidity of solution, the effect of ionic strength and the selectivity. In acidic solution, the enhanced RLS intensity at 389.5 nm was proportional to the concentration of nucleic acids in the range 0.05-10.0 microg ml(-1) for both ctDNA and fsDNA and 1.0-10.0 microg ml(-1) for yRNA. The limits of detection (LOD, 3sigma) were 0.17, 0.13 and 0.53 ng ml(-1) for ctDNA, fsDNA and yRNA, respectively. Synthetic samples were determined satisfactorily.
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Affiliation(s)
- Zhanguang Chen
- Department of Chemistry, Shantou University, Shantou 515063, China.
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13
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Chen Y, Tian Y, Gao D, Bai Y, Yu A, Zhang H. Determination of serum albumin in the presence of poly(diallyldimethylammonium chloride) by resonance light scattering technique. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 66:1011-5. [PMID: 16872878 DOI: 10.1016/j.saa.2006.05.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2006] [Accepted: 05/11/2006] [Indexed: 05/11/2023]
Abstract
By means of the resonance light scattering (RLS) technique, a new method was developed to determine the bovine serum albumin (BSA) and human serum albumin (HSA) by the interaction of serum albumin with poly(diallyldimethylammonium chloride) (PDDA). At Tris-NaOH buffer solution, the RLS intensity of serum albumin at the wavelength 320, 550 and 590 nm was obviously enhanced in the presence of PDDA. The influences of some experimental factors, including incubation time, addition sequence of reagents, pH value, concentration of PDDA and foreign substances, on the enhancement of the RLS intensity were examined. The optimum conditions of the experiment were selected. Under the selected experimental condition, the enhanced RLS intensities were directly proportional to the concentrations in the range of (0.0250-2.75)x10(-6) mol/L for BSA and (0.0235-1.17)x10(-6) mol/L for HSA. The detection limits (S/N=3) were 8.40x10(-9) mol/L for BSA and 7.39x10(-9) mol/L for HSA. The synthetic samples were analysed and the results obtained were satisfactory.
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Affiliation(s)
- Yanhua Chen
- College of Chemistry, Jilin University, Changchun 130012, PR China
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14
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Dong L, Li Y, Zhang Y, Chen X, Hu Z. A flow injection sampling resonance light scattering system for total protein determination in human serum. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 66:1317-22. [PMID: 17276721 DOI: 10.1016/j.saa.2006.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2006] [Accepted: 06/23/2006] [Indexed: 05/13/2023]
Abstract
A novel flow injection method with resonance light scattering detection was developed for the determination of total protein concentrations. This method is based on the enhancement of RLS signals from Methyl Blue (MB) by protein. The enhanced RLS intensities at 333 nm, in a pH 4.1 acidic aqueous solution, were proportional to the protein concentration over the range 2.0-37.3 and 1.0-36.0 microg ml-1 for human serum albumin (HSA) and bovine serum albumin (BSA), respectively. The corresponding limits of detection (3sigma) of 45 ng ml-1 for HSA and 80 ng ml-1 for BSA were attained. The method was successfully applied to the quantification of total proteins in human serum samples, the maximum relative error is less than 1% and the recovery is between 98% and 102%. The sample throughput was 60 h-1.
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Affiliation(s)
- Lijun Dong
- Department of Chemistry, Lanzhou University, Lanzhou 730000, PR China
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15
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Xiao J, Chen J, Ren F, Chen Y, Xu M. Highly sensitive determination of trace potassium ion in serum using the resonance light scattering technique with sodium tetraphenylboron. Mikrochim Acta 2007. [DOI: 10.1007/s00604-007-0733-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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16
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Determination of proteins in human serum by combination of flow injection sampling with resonance light scattering technique. Mikrochim Acta 2007. [DOI: 10.1007/s00604-006-0714-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Chen Z, Zhang T, Chen X, Han Y, Zhu L. Interactions of norfloxacin with DNA and determination of DNA at nanogram levels based on the measurement of enhanced resonance light scattering. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0634-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Simple and sensitive assay for nucleic acids by use of the resonance light-scattering technique with the anionic dye methyl blue in the presence of cetyltrimethylammonium bromide. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0620-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Guang Chen Z, Feng Ding W, Lian Ren F, Han Y, Liu JB. A High-Sensitivity Assay of Nucleic Acids with Tetraphenyl Porphyrin Cobalt Chlorine by Resonance Light Scattering Technique. ANAL LETT 2005. [DOI: 10.1080/00032710500316217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Chen X, Cai C, Luo H', Zhang G. Study on the resonance light-scattering spectrum of anionic dye xylenol orange-cetyltrimethylammonium-nucleic acids system and determination of nucleic acids at nanogram levels. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:2215-20. [PMID: 15911414 DOI: 10.1016/j.saa.2004.08.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2004] [Accepted: 08/31/2004] [Indexed: 05/02/2023]
Abstract
The interaction of xylenol orange (XO) and nucleic acids in the presence of cetyltrimethylammonium bromide (CTMAB) in aqueous solution has been studied by a resonance light-scattering (RLS) technique with a common spectrofluorometer. In hexamethylenetetramine (HMTA) buffer (pH7.30), XO and nucleic acids react with cetyltrimethylammonium bromide to form large particles of three-component complex, which results in strong enhanced RLS signals characterized by three peaks at 295.9, 335.5 and 542 nm, Mechanistic studies showed that the enhanced RLS stems from the aggregation of XO on DNA through the bridged and synergistic effect of CTMAB. With the enhanced RLS signals at the three wavelengths, the enhanced RLS intensity is proportional to the concentration of nucleic acids in an appropriate range. The lowest limit of determination was 5.31 ng ml(-1), three synthetic samples of yDNA were analyzed satisfactorily.
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Affiliation(s)
- Xiaoming Chen
- Institute of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
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Chen X, Cai C, Zeng J, Liao Y, Luo H. Study on bromocresol green-cetyltrimethylammonium-deoxyribonucleic acids system by resonance light scattering spectrum methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:1783-1788. [PMID: 15863048 DOI: 10.1016/j.saa.2004.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2004] [Accepted: 07/09/2004] [Indexed: 05/24/2023]
Abstract
An assay of deoxyribonucleic acids (DNA) determination, with the sensitivity at nanogram level, was established in the present study by using a common spectrofluorometer to detect the intensity of resonance light scattering (RLS). In hexamethylene tetramine (HMTA) buffer (pH 11.00), Bromocresol Green (BCG) and deoxyribonucleic acids (DNA) react with cetyltrimethylammonium bromide (CTMAB) to form large particles of three-component complex, which results in strong enhanced RLS signals characterized by three peaks at 336, 390, and 622 nm and at 336 nm that is the strongest of the three enhanced RLS peaks. Mechanistic studies showed that the enhanced RLS stems from the aggregation of BCG on DNA through the bridged and synergistic effect of CTMAB. Yeast DNA (yDNA), in the range of 0.05-0.90 ngml(-1), fish sperm DNA (fsDNA) in the range of 0.05-0.80 ngml(-1), and calf thymus DNA (ctDNA) in the range of 0.05-0.80 ngml(-1) can be determined if 2.0 x 10(-6) moll(-1) BCG was employed. The determination limit of yDNA was 12.7 ngml(-1). Three synthetic samples of yDNA were analyzed with good reproducibility.
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Affiliation(s)
- Xiaoming Chen
- Institute of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
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22
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Liu SP, Luo HQ, Xu H, Li NB. Resonance Rayleigh scattering study of interaction of heparin with some cationic surfactants and their analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 61:861-867. [PMID: 15683790 DOI: 10.1016/j.saa.2004.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2003] [Accepted: 06/09/2004] [Indexed: 05/24/2023]
Abstract
Binding of heparin with a cationic surfactant such as cetyldimethyl benzylammonium chloride (CDBAC), tetradecyldimethyl benzylammonium chloride (Zeph), cetylpyridinium bromide (CPB), tetradecane pyridinium bromide (TPB) and cetyltrimethylammonium bromide (CTAB) in a near-neutral medium can result in a significant enhancement of resonance Rayleigh scattering (RRS) intensities. The results showed that the reaction conditions and RRS spectral characteristics of these reactions are similar, but their sensitivities are obviously different. Among them, the sensitivity of CDBAC with an aryl and large molecular weight is the highest, while that of CTAB without aryl and with small molecular weight is the lowest. The detection limit for heparin of the former is 11 ng ml(-1) while that of the latter is 33 ng ml(-1). The method has better selectivity and was applied to the determination of trace amounts of heparin in sodium heparin injection samples with satisfactory results. Furthermore, it is discovered that the RRS intensity is related to the structure and molecular weight of the cationic surfactant.
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Affiliation(s)
- Shao Pu Liu
- School of Chemistry and Chemical Engineering, Southwest China Normal University, Chongqing 400715, PR China.
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Long X, Bi S, Tao X, Wang Y, Zhao H. Resonance Rayleigh scattering study of the reaction of nucleic acids with thionine and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2004; 60:455-462. [PMID: 14670513 DOI: 10.1016/s1386-1425(03)00250-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Resonance Rayleigh scattering (RRS) of the thionine (TH)-nucleic acids system and its analytical application have been studied. In pH 2.2 acidic buffer medium, some nucleic acids can react with TH to form TH-nucleic acids complex. This results in a great enhancement of RRS and the appearance of new RRS spectra. The RRS spectral characteristics of TH-ctDNA system, the affecting factors and the optimum conditions of the reaction have been investigated. The enhancement of the RRS signal is directly proportional to the concentration of nucleic acids in the range 0-10.0 microg/ml for calf thymus DNA and 0-15.0 microg/ml for yeast RNA, and its detection limits (3sigma) are 3.5 ng/ml for calf thymus DNA and 4.9 ng/ml for yeast RNA, respectively. The method shows a wide linear range and high sensitivity, and was applied to the determination of trace amounts of nucleic acid in synthetic samples and practical samples with satisfactory results. The bind properties for the interactions of TH with ctDNA were investigated using a Scatchard plot based on the measurement of the enhanced RRS data at 340 nm, and the binding number and intrinsic binding constant are 4.9 and 2.6 x 10(5) mol/dm(3), respectively.
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Affiliation(s)
- Xiufen Long
- State Key Laboratory of Coordination Chemistry, Department of Chemistry, Nanjing University, Nanjing 210093, China
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24
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Huang CZ, Li YF. Resonance light scattering technique used for biochemical and pharmaceutical analysis. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00630-5] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Huang CZ, Lu W, Li YF. Total internal reflected resonance light scattering detection of DNA at water/tetrachloromethane interface with acrindine orange and cetyltrimethylammonium bromide. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00895-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Pang XB, Huang CZ, Li YF, Lu W. Assay of Nucleic Acids at the Water/Tetrachloromethane Interface with Cetyltrimethylammonium Bromide by Total Internal Reflected Resonance Light Scattering. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.1941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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27
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Study of the interaction of nucleic acids with acridine orange-CTMAB and determination of nucleic acids at nanogram levels based on the enhancement of resonance light scattering. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)00967-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Yang CX, Li YF, Huang CZ. Determination of proteins with Fast Red VR by a corrected resonance light-scattering technique. ANAL SCI 2003; 19:211-5. [PMID: 12608747 DOI: 10.2116/analsci.19.211] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A simple corrected resonance light-scattering (CRLS) technique was established to correct for any distortion of the resonance light scattering (RLS) spectra resulting from molecular absorption. By using an absorption cell holder to change the propagation direction of the incident light beam of a common spectrofluorometer, the molecular absorption was directly measured through a spectrofluorometer. With measurements of the CRLS signals of the interaction of Fast Red VR (FRV) and proteins, we proved that the present correction for the RLS spectra in terms of the molecular absorption of excitation and scattering radiation can improve the detection sensitivity by about two fold.
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Affiliation(s)
- Chuan Xiao Yang
- Institute of Environmental Chemistry, College of Chemistry and Chemical Engineering, Southwest Normal University, Chongqing 400715, The People's Republic of China
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29
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Wang Y, Yang J, Wu X, Li L, Sun S, Su B, Zhao Z. Progress of Spectral Probes for Nucleic Acids. ANAL LETT 2003. [DOI: 10.1081/al-120023702] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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30
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Zhi Huang C, Xiao Yang C, Fang Li Y. Determination of Proteins with Ponceau G by Compensating for the Molecular Absorption Decreased Resonance Light Scattering Signals. ANAL LETT 2003. [DOI: 10.1081/al-120021537] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chen LH, Nie YT, Liu LZ, Shen HX. Determination of Nucleic Acids on the Basis of Enhancement Effect of Resonance Light Scattering of Toluidine Blue. ANAL LETT 2003. [DOI: 10.1081/al-120017266] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu R, Yang J, Wu X. Interaction of cetylpyridine bromide with nucleic acids and determination of nucleic acids at nanogram levels based on the enhancement of resonance Rayleigh light scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2002; 58:1935-1942. [PMID: 12164493 DOI: 10.1016/s1386-1425(01)00657-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Resonance Rayleigh light scattering (RRLS) spectra of cetylpyridine bromide (CPB)-nucleic acid system and their analytical application have been first studied. The effective factors and optimum conditions of the reaction have been investigated. After CPB and nucleic acid are mixed together, a new absorption peak located at 300 nm appeared, which is due to the formation of new ion associate of CPB-nucleic acid. The new associate can result in two apparent RRLS peaks at 310-400 and 460-480 nm. The RRLS peak of the corrected spectra located at 290-350 nm, which indicate that the RRLS is originated from the absorption of CPB-nucleic acid associate. The peak at 460-480 nm disappears in the corrected RRLS spectra, which indicated that this peak is originated from the strong line emission of the Xe lamp. Under the optimum conditions, the enhanced intensity of RRLS is proportional to the concentration of nucleic acid in the range of 5.0 x 10(-9)-5.0 x 10(-5) g ml(-1) for calf thymus DNA (ctDNA), 1.0 x 10(-8)-4.0 x 10(-5) g ml(-1) for fish sperm DNA (fsDNA) and 1.0 x 10(-8)-5.0 x 10(-5) g ml(-1) for yeast RNA (yRNA). The detection limits (S/N = 3) are 4.3, 8.7 and 7.4 ng ml(-1), respectively. Synthetic samples were determined satisfactorily.
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Affiliation(s)
- Rutao Liu
- Department of Chemistry, Shandong University, Jinan, People's Republic of China
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