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Plasmonic Surface of Metallic Gold and Silver Nanoparticles Induced Fluorescence Quenching of Meso-Terakis (4-Sulfonatophenyl) Porphyrin (TPPS) and Theoretical-Experimental Comparable. J Fluoresc 2022; 32:2257-2269. [PMID: 36045307 PMCID: PMC9606071 DOI: 10.1007/s10895-022-03022-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022]
Abstract
Colloidal metallic nanoparticles have attracted a lot of interest in the last two decades owing to their simple synthesis and fascinating optical properties. In this manuscript, a study of the effect of both gold nanoparticles (Au NPs) and silver nanoparticles (Ag NPs) on the fluorescence emission (FE) of TPPS has been investigated utilizing steady-state fluorescence spectroscopy and UV–Vis spectrophotometry. From the observed electronic absorption spectra, there is no evidence of the ground state interaction between metallic Au NPs or Ag NPs with TPPS. On the other side, the FE spectra of TPPS have been quenched by both Ag and Au NPs. Via applying quenching calculations, Ag NPs showed only traditional static fluorescence quenching of TPPS with linear Stern–Volmer (SV) plots. On the contrary, quenching of TPPS emission by Au NPs shows composed models. One model is the sphere of action static quenching model that prevails at high quencher concentrations leading to non-linear SV plots with positive deviation. However, at low Au NPs concentrations, traditional dynamic quenching occurs with linear SV plots. The quantum calculations for TPPS structure have been obtained using Gaussian 09 software: in which the TPPS optimized molecular structure was achieved using DFT/B3LYP/6-311G (d) in a gaseous state. Also, the calculated electronic absorption spectra for the same molecule in water as a solvent are obtained using TD/M06/6-311G + + (2d, 2p). Furthermore, the theoretical and experimental results comparable to UV–Vis spectra have been investigated.
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Soliman E, Ibrahim MM, El-Khouly ME, El-Mehasseb I, Ramadan AEMM, Mahfouz ME, Shaban SY, van Eldik R. BSA Interaction, Molecular Docking, and Antibacterial Activity of Zinc(II) Complexes Containing the Sterically Demanding Biomimetic N 3S 2 Ligand: The Effect of Structure Flexibility. Molecules 2022; 27:3543. [PMID: 35684479 PMCID: PMC9182146 DOI: 10.3390/molecules27113543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Two zinc(II) complexes, DBZ and DBZH4, that have (ZnN3S2) cores and differ in the bridging mode of the ligating backbone, effectively bind to BSA. The binding affinity varies as DBZ > DBZH4 and depends on the ligand structure. At low concentrations, both complexes exhibit dynamic quenching, whereas at higher concentrations they exhibit mixed (static and dynamic) quenching. The energy transfer mechanism from the BSA singlet excited state to DBZ and DBZH4, is highly likely according to steady-state fluorescence and time-correlated singlet photon counting. Molecular docking was used to support the mode of interaction of the complexes with BSA and showed that DBZ had more energy for binding. Furthermore, antibacterial testing revealed that both complexes were active but to a lesser extent than chloramphenicol. In comparison to DBZH4, DBZ has higher antibacterial activity, which is consistent with the binding constants, molecular docking, and particle size of adducts. These findings may have an impact on biomedicine.
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Affiliation(s)
- Eman Soliman
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikhheikh 33516, Egypt; (E.S.); (I.E.-M.); (A.E.-M.M.R.)
| | - Mohamed M. Ibrahim
- Chemistry Department, College of Science, Taif University, Taif 21944, Saudi Arabia;
| | - Mohamed E. El-Khouly
- Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology (E-JUST), Borg El-Arab 21934, Egypt;
| | - Ibrahim El-Mehasseb
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikhheikh 33516, Egypt; (E.S.); (I.E.-M.); (A.E.-M.M.R.)
| | - Abd El-Motaleb M. Ramadan
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikhheikh 33516, Egypt; (E.S.); (I.E.-M.); (A.E.-M.M.R.)
| | - Magdy E. Mahfouz
- Zoology Department, Faculty of Science, Kafrelsheikh University, Kafr El Sheikh 33516, Egypt;
| | - Shaban Y. Shaban
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikhheikh 33516, Egypt; (E.S.); (I.E.-M.); (A.E.-M.M.R.)
| | - Rudi van Eldik
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Torun, Poland
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Zhang Q, Hou B, Li Y, Zhang W, Liu J. DNA interactive and selective anticancer activity studies of copper(II) complexes decorated water‐soluble porphyrin. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Qian Zhang
- Key Laboratory of Eco‐functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco‐environmental Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 People's Republic of China
| | - Bing‐jie Hou
- Key Laboratory of Eco‐functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco‐environmental Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 People's Republic of China
| | - Yan‐yan Li
- Key Laboratory of Eco‐functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco‐environmental Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 People's Republic of China
| | - Wen‐yuan Zhang
- Key Laboratory of Eco‐functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco‐environmental Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 People's Republic of China
| | - Jia‐cheng Liu
- Key Laboratory of Eco‐functional Polymer Materials of the Ministry of Education, Key Laboratory of Eco‐environmental Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 People's Republic of China
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Jiménez HR, Arbona M. Spectroscopic studies of water-soluble superstructured iron(III) porphyrin. Interaction with the bovine serum albumin protein. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1434624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Hermas R. Jiménez
- Facultad de Química, Departamento de Química Inorgánica, Universitat de València, Valencia, Spain
| | - María Arbona
- Conselleria de Cultura, Educació i Ciència, Generalitat Valenciana, Valencia, Spain
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5
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Hu J, Guo Y, Zhao J, Zhang J. In vitro antitumor activity of novel benzimidazole-based Cu(II) complexes. Bioorg Med Chem 2017; 25:5733-5742. [DOI: 10.1016/j.bmc.2017.08.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/22/2017] [Accepted: 08/30/2017] [Indexed: 11/27/2022]
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6
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Zhao J, Guo Y, Hu J, Yu H, Zhi S, Zhang J. Potential anticancer activity of benzimidazole-based mono/dinuclear Zn(II) complexes towards human carcinoma cells. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Two novel 2D waves copper(II) coordination polymer with the quinolone antimicrobial drugs ciprofloxacin: Synthesis, structure and biological evaluation. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Zhao J, Peng K, Guo Y, Zhang J, Chen S, Hu J. Photoluminescent and cytotoxic properties of multinuclear complexes and multinuclear-based polymers with group 12 metals and a tripodal ligand. NEW J CHEM 2015. [DOI: 10.1039/c5nj00222b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Group 12 metal-based complexes constructed with a novel tripodal ligand display prominent photoluminescence, and zinc complex shows potential antitumor activity.
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Affiliation(s)
- Jin'an Zhao
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan
- P. R. China
| | - Kun Peng
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yan Guo
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Jin Zhang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Shufang Chen
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan
- P. R. China
| | - Jiyong Hu
- College of Chemical and Material Engineering
- Henan University of Urban Construction
- Pingdingshan
- P. R. China
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Akimova AV, Grin MA, Golovina GV, Kokrashvili TA, Vinogradov AM, Mironov AF, Rychkov GN, Shtil AA, Kuzmin VA, Durandin NA. Novel derivatives of bacteriochlorophyll a: complex formation with albumin and the mechanism of tumor cell photodamage. DOKL BIOCHEM BIOPHYS 2014; 454:17-20. [PMID: 24633606 DOI: 10.1134/s1607672914010062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Indexed: 11/23/2022]
Affiliation(s)
- A V Akimova
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 119334, Russia
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Jiang GY, Lei WH, Zhou QX, Hou YJ, Wang XS. Small change in structure leads to large difference in protein photocleavage: two porphyrins bearing rhodanine-based pendants. Photochem Photobiol Sci 2012; 11:715-23. [PMID: 22327540 DOI: 10.1039/c2pp05352g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two 5,10,15,20-tetraphenylporphyrins with one phenyl group anchored to a rhodanine-terminated side chain, RhD-TPP and RhDCOOH-TPP, were designed and synthesized, and their protein photocleavage activities were investigated using bovine serum albumin (BSA) as a model protein. Both porphyrins exhibit similar absorption spectra, fluorescence spectra, fluorescence quantum yields, and singlet oxygen ((1)O(2)) quantum yields in organic solvents due to their structure similarity. They also show similar binding affinities and binding sites toward BSA. However, RhD-TPP is nearly inactive in protein photocleavage while RhDCOOH-TPP can lead to distinct photocleavage of BSA under the same experimental conditions. Such a difference may be attributed to the different binding modes of the two porphyrin derivatives toward BSA, though the apparent binding affinities and the binding sites are similar, and consequently a great difference in the (1)O(2) quantum yields of the two porphyrins bound on BSA. The presence of the COOH group in RhDCOOH is proposed to play an important role, leading to less hydrophobic character and additional interactions towards BSA.
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Affiliation(s)
- Guo-Yu Jiang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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Chen ZF, Shi YF, Liu YC, Hong X, Geng B, Peng Y, Liang H. TCM Active Ingredient Oxoglaucine Metal Complexes: Crystal Structure, Cytotoxicity, and Interaction with DNA. Inorg Chem 2012; 51:1998-2009. [DOI: 10.1021/ic200443p] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Zhen-Feng Chen
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Yan-Fang Shi
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Yan-Cheng Liu
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Xue Hong
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Bo Geng
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Yan Peng
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
| | - Hong Liang
- State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin, 541004, China
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Zhang Z, Guo QN, Lu YG, Jia T, Yan K, Li ZY. Interaction between novel porphyrin-dextran nanoparticles and human serum albumin. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424610001969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A novel porphyrin-dextran coated Fe3O4 nanoparticle (5) was designed and synthesized. The structure of 5 was confirmed by IR, UV-vis and inductively coupled plasma atomic emission spectrometry, and dynamic laser scattering (DLS); magnetic property was measured by a vibrating sample magnetometer (VSM). The interaction between compound 5 and human serum albumin (HSA) was investigated through UV-vis absorbance spectra and fluorospectrophotometer, compared with the 5-(4-aminophenyl)-10,15,20-tris-(4-sulfonatophenyl)porphyrin, trisodium salt (3). The results showed compound 5 containing porphyrin moiety and 3 could interact with HSA. The quenching constant (Ksv) was 4.739 × 105 M-1 for 3, and 2.846 × 105 M-1 for 5; the apparent affinity binding constant (KA) was 8.562 × 103 M-1 for 3, and 4.978 × 104 M-1 for 5.
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Affiliation(s)
- Zhi Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Qian-ni Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Yun-guo Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Tao Jia
- College of Pharmacy, Wuhan University, Wuhan 430072, P.R. China
| | - Kun Yan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
| | - Zao-ying Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P.R. China
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Chakraborty R, Chatterjee S, Sarkar S, Chattopadhyay P. Study of Photoinduced Interaction between Calf Thymus-DNA and Bovine Serum Albumin Protein with H<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> Nanotubes. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/jbnb.2012.34047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Shelar DP, Rote RV, Patil SR, Jachak MN. Effects of homogeneous media, binary mixtures and microheterogeneous media on the fluorescence and fluorescence probe properties of some benzo[b][1,8]naphthyridiens with HSA and BSA. LUMINESCENCE 2011; 27:398-413. [PMID: 22102403 DOI: 10.1002/bio.1364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 07/30/2011] [Accepted: 09/01/2011] [Indexed: 11/07/2022]
Abstract
A rapid and efficient method for the synthesis of various poly-substituted benzo[b][1,8]naphthyridines in high yield has been developed via the Friedländer condensation of 2-aminoquinoline-3-carbaldehyde 1 with various alicyclic ketones in a base catalyst (aq. potassium hydroxide). A series of benzo[b][1,8]naphthyridines branched with various side-chains and substituents were prepared with the aim of being investigated as a fluorescent agents. Electronic absorption and fluorescence properties of some representative benzonaphthyridines (3d, 5b and 21f) in homogeneous organic solvents, dioxane-water binary mixtures and in the microheterogeneous media (sodium dodecyl sulphate (SDS), cetyl trimethyl ammonium bromide (CTAB) and Triton-X100 micelles) have been examined. A linear correlation between solvent polarity and fluorescence properties was observed. Further, the interaction of these benzonaphthyridines (3d, 5b and 21f) with human serum albumin (HSA) and bovine serum albumin (BSA) in phosphate buffer have been examined by UV-vis absorption and fluorescence spectroscopy. The fluorescence intensity of 3d, 5b and 21f increases with the increasing HSA and BSA concentration. These benzonaphthyridines also quench the 345 nm fluorescence of BSA in phosphate buffer (λ(ex) 280 nm). These compounds have potential for use as neutral and hydrophobic fluorescence probes for examining the microenvironments in proteins, polymers, micelles, etc.
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Affiliation(s)
- Deepak P Shelar
- Organic Chemistry Research Centre, Department of Chemistry, KTHM College, Gangapur Road, Nashik, 422002, MS, India
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15
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Colorimetric artificial tongue for protein identification. Biosens Bioelectron 2011; 26:3981-6. [DOI: 10.1016/j.bios.2010.11.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 11/03/2010] [Accepted: 11/17/2010] [Indexed: 11/19/2022]
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16
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Jiang GY, Lei WH, Zhou QX, Hou YJ, Wang XS, Zhang BW. A new Phenol Red-modified porphyrin as efficient protein photocleaving agent. Phys Chem Chem Phys 2010; 12:12229-36. [DOI: 10.1039/c0cp00012d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Ma HM, Chen X, Zhang N, Han YY, Wu D, Du B, Wei Q. Spectroscopic studies on the interaction of a water-soluble cationic porphyrin with proteins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:465-469. [PMID: 19054710 DOI: 10.1016/j.saa.2008.10.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 10/08/2008] [Accepted: 10/17/2008] [Indexed: 05/27/2023]
Abstract
The interaction of a water-soluble cationic porphyrin, meso-tetrakis (4-N,N,N-trimethylanilinium) porphyrin (TMAP), with two proteins, bovine serum albumin (BSA) and human serum albumin (HSA), was studied by UV-vis absorption spectroscopy, fluorescence spectroscopy, fluorescence anisotropy and synchronous fluorescence spectroscopy at neutral aqueous solutions. Free base TMAP bound to proteins as monomers and no aggregation was observed. The binding of TMAP quenched the fluorescence of the protein. On the contrary, the fluorescence of TMAP was enhanced and the fluorescence anisotropy increased due to the binding. The direct static binding mechanism could account for the quenching by TMAP and the binding constants were calculated. TMAP showed a higher quenching efficiency and binding constant of HSA than BSA. The binding of TMAP had no obvious effect on the molecular conformation of the protein. There was only one binding site for TMAP and it was located on the surface of the protein molecule. Electrostatic force played an important role in the binding due to the opposite charges on porphyrin and the proteins.
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Affiliation(s)
- Hong-Min Ma
- School of Chemistry and Chemical Engineering, University of Jinan, No. 106 Jiwei Road, Jinan 250022, PR China
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Kathiravan A, Chandramohan M, Renganathan R, Sekar S. Spectroscopic studies on the interaction between phycocyanin and bovine serum albumin. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.09.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Kathiravan A, Renganathan R, Anandan S. Interaction of colloidal AgTiO2 nanoparticles with bovine serum albumin. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.09.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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20
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Synthesis of functionalized ZnSe nanoparticles and their applications in the determination of bovine serum albumin. J Fluoresc 2008; 19:437-41. [PMID: 18972192 DOI: 10.1007/s10895-008-0430-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2008] [Accepted: 10/14/2008] [Indexed: 10/21/2022]
Abstract
Luminescent quantum dots (QDs)-semiconductor nanocrystals were promising alternative to organic dyes for fluorescence-based applications. In this paper, we developed procedures to use mercaptoacetic acid (MAA) to modify ZnSe nanoparticles and made the nanoparticles to be soluble for the quantitative and selective determination of bovine serum albumin (BSA). Maximum fluorescence intensity was produced at pH 7.0, with excitation and emission wavelengths at 242 and 348 nm, respectively. Under optimal conditions, the straight line equation: Delta(F) = 0.38 + 0.34 C (microg/ml) was found between the relative fluorescence intensity and the concentration of BSA in the range of 9.6-124.8 microg/ml, and the limit of detection was 2 microg/ml.
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Kathiravan A, Renganathan R. Interaction of colloidal TiO2 with bovine serum albumin: A fluorescence quenching study. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.04.017] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Resonance energy transfer and ligand binding studies on pH-induced folded states of human serum albumin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2008; 90:187-97. [DOI: 10.1016/j.jphotobiol.2008.01.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 01/02/2008] [Accepted: 01/02/2008] [Indexed: 11/21/2022]
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23
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Shaw AK, Pal SK. Spectroscopic studies on the effect of temperature on pH-induced folded states of human serum albumin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2008; 90:69-77. [DOI: 10.1016/j.jphotobiol.2007.11.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2007] [Revised: 11/08/2007] [Accepted: 11/12/2007] [Indexed: 12/17/2022]
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24
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Qiu WG, Li ZF, Bai GM, Meng SN, Dai HX, He H. Interaction of water-soluble cationic porphyrin with anionic surfactant. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2007; 68:1164-9. [PMID: 17482869 DOI: 10.1016/j.saa.2007.01.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2006] [Accepted: 01/19/2007] [Indexed: 05/15/2023]
Abstract
The interaction of a cationic water-soluble porphyrin, 5,10,15,20-tetrakis [4-(3-pyridiniumpropoxy)phenyl]porphyrin tetrakisbromide (TPPOC3Py), with anionic surfactant, sodium dodecyl sulfate (SDS), in aqueous solution has been studied by means of UV-vis, (1)H NMR, fluorescence, circular dichroism (CD) spectra and dynamic laser light scattering (DLLS), and it reveals that TPPOC3Py forms porphyrin-surfactant complexes (aggregates), including ordered structures J- and H-aggregates, induced by association with surfactant monomers below the SDS critical micelle concentration (cmc), and forms micellized monomer upon the cmc, respectively. The position of TPPOC3Py in the micelle is determined, which is not in the micelle core instead of intercalated among the SDS chains, most likely with the pyridinium group extending into the polar headgroup region of the micelle.
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Affiliation(s)
- Wen-Ge Qiu
- Department of Chemical Science and Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, PR China.
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25
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Liu P, Liu Y, Li X, Huang WG. Study on the Interaction between Lanthanide Cationic Porphyrin Complex and Bovine Serum Albumin. CHINESE J CHEM 2007. [DOI: 10.1002/cjoc.200790178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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