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Sookai S, Akerman MP, Munro OQ. Chiral Au(III) chelates exhibit unique NCI-60 cytotoxicity profiles and interactions with human serum albumin. Dalton Trans 2024; 53:5089-5104. [PMID: 38375922 DOI: 10.1039/d3dt04024k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Au(III) bis(pyrrolide-imine) chelates are emerging as a class of versatile, efficacious metallodrug candidates. Here, we synthesised two enantiopure chiral ligands H2L1 and H2L2 (tetradentate cyclohexane-1,2-diamine-bridged bis(pyrrole-imine) derivatives). Metallation of the ligands with Au(III) afforded the chiral cationic complexes AuL1 and AuL2. The in vitro cytotoxicities of AuL1 and AuL2 determined in the NCI-60 single-dose drug screen were 56.5% and 89.1%, respectively. AuL1 was subsequently selected for a five-dose NCI-60 screen, attaining GI50, IC50, and LC50 values of 4.7, 9.3 and 39.8 μM, respectively. Hierarchical cluster analysis of the NCI-60 data indicated that the profile for AuL1 was similar to that of vinblastine sulfate, a microtubule-targeting vinca alkaloid. Reactions of AuL1 with glutathione (GSH) in vitro confirmed its susceptibility to reduction, Au(III) → Au(I), by intracellular thiols. Because human serum albumin (HSA) is responsible for transporting clinically deployed and investigational drugs, we studied the uptake of AuL1 and AuL2 by HSA to delineate how chirality impacts their protein-binding affinity. Steady-state fluorescence quenching data acquired on the native protein and data from site-specific probes showed that the compounds bind at sites close enough to Trp-214 (subdomain IIA) of HSA to quench the fluorophore. The bimolecular quenching rate constants, Kq, were ca. 102 times higher than the maximum diffusion-controlled collision constant of a biomolecule in water (1010 M-1 s-1), confirming that static fluorescence quenching was the dominant mechanism. The Stern-Volmer constants, KSV, were ∼104 M-1 at 37 °C, while the affinity constants, Ka (37 °C), measured ∼2.1 × 104 M-1 (AuL1) and ∼1.2 × 104 M-1 (AuL2) for enthalpy-driven ligand uptake targeting Sudlow's site I. Although far- and near-UV CD spectroscopy indicated that both complexes minimally perturb the secondary and tertiary structure of HSA, substantial shifts in the CD spectra were recorded for both protein-bound ligands. This study highlights the role of chirality in determining the cytotoxicity profiles and protein binding behaviour of enantiomeric Au(III) chelates.
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Affiliation(s)
- Sheldon Sookai
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO WITS 2050, Johannesburg, South Africa.
| | - Matthew P Akerman
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, 3201, South Africa
| | - Orde Q Munro
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO WITS 2050, Johannesburg, South Africa.
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
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Sookai S, Munro OQ. Spectroscopic and computational study of the interaction of Pt(II) pyrrole-imine chelates with human serum albumin. Dalton Trans 2023; 52:14774-14789. [PMID: 37698009 DOI: 10.1039/d3dt02039h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Three bis(pyrrolide-imine) Pt(II) chelates were synthesised and characterized with different bridging alkyl groups, specifically 2-hydroxypropyl (1), 2,2-dimethylpropyl (2), and 1,2-(S,S)-(+)-cyclohexyl (3). Novel compounds 1 and 2 were analysed by single-crystal X-ray diffraction (space group P1̄). The asymmetric unit of 1 comprises three independent molecules linked by hydrogen bonds involving the OH groups, forming a trimeric supramolecular structure. The Pt(II) chelates were reacted with human serum albumin (HSA) to investigate how the ligand bound to the Pt(II) ion influences the compound's affinity for HSA. Fluorescence quenching data obtained for native HSA and HSA bound to site-specific probes (warfarin, subdomain IIA; ibuprofen, subdomain IIIA) indicated that the three Pt(II) chelates bind close enough (within ∼30 Å) to Trp-214 to quench its intrinsic fluorescence. The bimolecular quenching constant (kq) was 103-104 -fold higher than the maximum diffusion-controlled collision constant in water (1010 M s-1) at 310 K, while the affinity constants, Ka, ranged from ∼5 × 103 to ∼5 × 105 at 310 K, and followed the order 1 > 3 > 2. The reactions of 1 and 3 with HSA were enthalpically driven, while that for 2 was entropically driven. Macromolecular docking simulations (Glide XP) and binding site specificity assays employing site-specific probes and UV-vis CD spectroscopy indicated that 1 and 2 target Sudlow's site II in subdomain IIIA, minimally perturbing the tertiary structure of the protein. Well-resolved induced CD signals from 1 and 2 bound to HSA in subdomain IIIA were adequately simulated by hybrid QM:MM TD-DFT methods. We conclude that the structure of the bis(pyrrolide-imine) Pt(II) chelate measurably affects its uptake by HSA without detectable decomposition or demetallation. Such compounds could thus serve as metallodrug candidates capable of utilising an HSA-mediated cellular uptake pathway.
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Affiliation(s)
- Sheldon Sookai
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO WITS 2050, Johannesburg, South Africa.
| | - Orde Q Munro
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO WITS 2050, Johannesburg, South Africa.
- School of Chemistry University of Leeds, Woodhouse Lane, LS2 9JT, UK.
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Taniguchi M, LaRocca CA, Bernat JD, Lindsey JS. Digital Database of Absorption Spectra of Diverse Flavonoids Enables Structural Comparisons and Quantitative Evaluations. JOURNAL OF NATURAL PRODUCTS 2023; 86:1087-1119. [PMID: 36848595 DOI: 10.1021/acs.jnatprod.2c00720] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Flavonoids play diverse roles in plants, comprise a non-negligible fraction of net primary photosynthetic production, and impart beneficial effects in human health from a plant-based diet. Absorption spectroscopy is an essential tool for quantitation of flavonoids isolated from complex plant extracts. The absorption spectra of flavonoids typically consist of two major bands, band I (300-380 nm) and band II (240-295 nm), where the former engenders a yellow color; in some flavonoids the absorption tails to 400-450 nm. The absorption spectra of 177 flavonoids and analogues of natural or synthetic origin have been assembled, including molar absorption coefficients (109 from the literature, 68 measured here). The spectral data are in digital form and can be viewed and accessed at http://www.photochemcad.com. The database enables comparison of the absorption spectral features of 12 distinct types of flavonoids including flavan-3-ols (e.g., catechin, epigallocatechin), flavanones (e.g., hesperidin, naringin), 3-hydroxyflavanones (e.g., taxifolin, silybin), isoflavones (e.g., daidzein, genistein), flavones (e.g., diosmin, luteolin), and flavonols (e.g., fisetin, myricetin). The structural features that give rise to shifts in wavelength and intensity are delineated. The availability of digital absorption spectra for diverse flavonoids facilitates analysis and quantitation of these valuable plant secondary metabolites. Four examples are provided of calculations─multicomponent analysis, solar ultraviolet photoprotection, sun protection factor (SPF), and Förster resonance energy transfer (FRET)─for which the spectra and accompanying molar absorption coefficients are sine qua non.
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Affiliation(s)
- Masahiko Taniguchi
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Connor A LaRocca
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jake D Bernat
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jonathan S Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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Jiao Q, Zhang W, Jiang Y, Jiang L, Chen X, Liu B. Study on the Interactions Between Caffeoylquinic Acids With Bovine Serum Albumin: Spectroscopy, Antioxidant Activity, LC-MS n, and Molecular Docking Approach. Front Chem 2019; 7:840. [PMID: 31867307 PMCID: PMC6909939 DOI: 10.3389/fchem.2019.00840] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 11/18/2019] [Indexed: 11/13/2022] Open
Abstract
Clarified the binding mechanism of drugs with plasma proteins could provide fresh insights into the drug development. Caffeoylquinic acids (CQAs) are a kind of phenolic acid compounds which has extensive biological effects. This study investigated the binding mechanism of three CQAs, including chlorogenic acid, neochlorogenic acid, and cryptochlorogenic acid, with bovine serum albumin (BSA) by using multi-spectroscopic techniques, including fluorescence, UV-Vis, Fourier transform infrared (FT-IR) and circular dichroism (CD) spectroscopy, LC-MSn, molecular docking and antioxidant activity assessment. In addition, the influences of PBS buffer, Tris-HCl buffer and water as solvents on the characteristics of CQAs and BSA interaction were also investigated. The results showed that intrinsic fluorescence of BSA was quenched by CQAs and the interaction was static quenching with the formation of a non-fluorescent complex. The binding of CQAs and BSA was spontaneous, and Van der Waals forces and hydrogen-bond interaction occupied crucial roles in the binding. All the three CQAs could bind to Site I in Domain IIA. The weakest interaction between neochlorogenic acid and BSA may due to its larger polarity. The results also indicated that the binding affinity of CQAs had a descending order of Tris-HCl > H2O > PBS. This study firstly clarified the binding mechanism of CQAs with BSA and changes of the binding in different solvents, and provided fresh insights into this drug transportation and metabolism.
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Affiliation(s)
- Qishu Jiao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Wei Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yanyan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Lijuan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiangyang Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Bin Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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Jiao Q, Wang R, Jiang Y, Liu B. Study on the interaction between active components from traditional Chinese medicine and plasma proteins. Chem Cent J 2018; 12:48. [PMID: 29728878 PMCID: PMC5935606 DOI: 10.1186/s13065-018-0417-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 04/24/2018] [Indexed: 02/06/2023] Open
Abstract
Traditional Chinese medicine (TCM), as a unique form of natural medicine, has been used in Chinese traditional therapeutic systems over two thousand years. Active components in Chinese herbal medicine are the material basis for the prevention and treatment of diseases. Research on drug-protein binding is one of the important contents in the study of early stage clinical pharmacokinetics of drugs. Plasma protein binding study has far-reaching influence on the pharmacokinetics and pharmacodynamics of drugs and helps to understand the basic rule of drug effects. It is important to study the binding characteristics of the active components in Chinese herbal medicine with plasma proteins for the medical science and modernization of TCM. This review summarizes the common analytical methods which are used to study the active herbal components-protein binding and gives the examples to illustrate their application. Rules and influence factors of the binding between different types of active herbal components and plasma proteins are summarized in the end. Finally, a suggestion on choosing the suitable technique for different types of active herbal components is provided, and the prospect of the drug-protein binding used in the area of TCM research is also discussed.
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Affiliation(s)
- Qishu Jiao
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Rufeng Wang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yanyan Jiang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Bin Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, 102488, China.
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Zhu M, Wang L, Wang Y, Zhou J, Ding J, Li W, Xin Y, Fan S, Wang Z, Wang Y. Biointeractions of Herbicide Atrazine with Human Serum Albumin: UV-Vis, Fluorescence and Circular Dichroism Approaches. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15010116. [PMID: 29324720 PMCID: PMC5800215 DOI: 10.3390/ijerph15010116] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 12/17/2022]
Abstract
The herbicide atrazine is widely used across the globe, which is a great concern. To investigate its potential toxicity in the human body, human serum albumin (HSA) was selected as a model protein. The interaction between atrazine and HSA was investigated using steady-state fluorescence spectroscopy, synchronous fluorescence spectroscopy, UV-Vis spectroscopy, three-dimensional (3D) fluorescence spectroscopy and circular dichroism (CD) spectroscopy. The intrinsic fluorescence of HSA was quenched by the atrazine through a static quenching mechanism. Fluorescence spectra at two excitation wavelengths (280 and 295 nm) showed that the fluorescence quenched in HSA was mainly contributed to by tryptophan residues. In addition, the atrazine bound to HSA, which induced changes in the conformation and secondary structure of HSA and caused an energy transfer. Thermodynamic parameters revealed that this binding is spontaneous. Moreover, electrostatic interactions play a major role in the combination of atrazine and HSA. One atrazine molecule can only bind to one HSA molecule to form a complex, and the atrazine molecule is bound at site II (subdomain IIIA) of HSA. This study furthers the understanding of the potential effects posed by atrazine on humans at the molecular level.
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Affiliation(s)
- Meiqing Zhu
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Lijun Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yu Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Jie Zhou
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Jie Ding
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Wei Li
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yue Xin
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Shisuo Fan
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Zhen Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
| | - Yi Wang
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
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Cheng LY, Fang M, Bai AM, Ouyang Y, Hu YJ. Insights into the interaction of methotrexate and human serum albumin: A spectroscopic and molecular modeling approach. LUMINESCENCE 2017; 32:873-879. [DOI: 10.1002/bio.3267] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/03/2016] [Accepted: 11/16/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Li-Yang Cheng
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Min Fang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Ai-Min Bai
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Yu Ouyang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Yan-Jun Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry; Hubei Normal University; Huangshi 435002 People's Republic of China
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education); Wuhan University; Wuhan 430072 People's Republic of China
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Khammari A, Saboury AA, Karimi-Jafari MH, Khoobi M, Ghasemi A, Yousefinejad S, Abou-Zied OK. Insights into the molecular interaction between two polyoxygenated cinnamoylcoumarin derivatives and human serum albumin. Phys Chem Chem Phys 2017; 19:10099-10115. [DOI: 10.1039/c7cp00681k] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Drug–protein interactions based on the thermodynamics approach, curve resolution analysis and computational methods at molecular levels.
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Affiliation(s)
- Anahita Khammari
- Institute of Biochemistry and Biophysics and Center of Excellence in Biothermodynamics
- University of Tehran
- Tehran
- Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics and Center of Excellence in Biothermodynamics
- University of Tehran
- Tehran
- Iran
| | | | - Mehdi Khoobi
- Department of Medicinal Chemistry
- Faculty of Pharmacy and Pharmaceutical Science Research Center
- Tehran University of Medical Science
- Tehran
- Iran
| | - Atiyeh Ghasemi
- Institute of Biochemistry and Biophysics and Center of Excellence in Biothermodynamics
- University of Tehran
- Tehran
- Iran
| | - Saeed Yousefinejad
- Research Center for Health Sciences
- School of Health
- Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - Osama K. Abou-Zied
- Department of Chemistry
- Faculty of Science
- Sultan Qaboos University
- Muscat
- Sultanate of Oman
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Wang Y, Zhu M, Liu F, Wu X, Pan D, Liu J, Fan S, Wang Z, Tang J, Na R, Li QX, Hua R, Liu S. Comparative Studies of Interactions between Fluorodihydroquinazolin Derivatives and Human Serum Albumin with Fluorescence Spectroscopy. Molecules 2016; 21:molecules21101373. [PMID: 27754443 PMCID: PMC6273767 DOI: 10.3390/molecules21101373] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/05/2016] [Accepted: 10/12/2016] [Indexed: 12/15/2022] Open
Abstract
In the present study, 3-(fluorobenzylideneamino)-6-chloro-1-(3,3-dimethylbutanoyl)-phenyl-2,3-dihydroquinazolin-4(1H)-one (FDQL) derivatives have been designed and synthesized to study the interaction between fluorine substituted dihydroquinazoline derivatives with human serum albumin (HSA) using fluorescence, circular dichroism and Fourier transform infrared spectroscopy. The results indicated that the FDQL could bind to HSA, induce conformation and the secondary structure changes of HSA, and quench the intrinsic fluorescence of HSA through a static quenching mechanism. The thermodynamic parameters, ΔH, ΔS, and ΔG, calculated at different temperatures, revealed that the binding was through spontaneous and hydrophobic forces and thus played major roles in the association. Based on the number of binding sites, it was considered that one molecule of FDQL could bind to a single site of HSA. Site marker competition experiments indicated that the reactive site of HSA to FDQL mainly located in site II (subdomain IIIA). The substitution by fluorine in the benzene ring could increase the interactions between FDQL and HSA to some extent in the proper temperature range through hydrophobic effect, and the substitution at meta-position enhanced the affinity greater than that at para- and ortho-positions.
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Affiliation(s)
- Yi Wang
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
- Department of Applied Chemistry, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Meiqing Zhu
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Feng Liu
- Department of Applied Chemistry, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
| | - Xiangwei Wu
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Dandan Pan
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Jia Liu
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
- Collaborative Innovation Center of Henan Grain Crops, National Key Laboratory of Wheat and Maize Crop Science, College of Plant Protection, Henan Agricultural University, Wenhua Road No. 95, Zhengzhou 450002, China.
| | - Shisuo Fan
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Zhen Wang
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Jun Tang
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Risong Na
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
- Collaborative Innovation Center of Henan Grain Crops, National Key Laboratory of Wheat and Maize Crop Science, College of Plant Protection, Henan Agricultural University, Wenhua Road No. 95, Zhengzhou 450002, China.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii, 1955 East-West Road, Honolulu, HI 96822, USA.
| | - Rimao Hua
- Department of Science of Pesticides, School of Resources and Environment, Anhui Agricultural University, No. 130 Changjiang West Road, Hefei 230036, China.
| | - Shangzhong Liu
- Department of Applied Chemistry, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China.
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Naveenraj S, Mangalaraja RV, Wu JJ, Asiri AM, Anandan S. Insights into the binding of photothermal therapeutic agent bismuth sulfide nanorods with human serum albumin. RSC Adv 2016. [DOI: 10.1039/c5ra22641d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The interaction of microwave synthesized bismuth sulfide nanorods with human serum albumin was investigated using multispectroscopic techniques such as absorption spectroscopy, fluorescence spectroscopy and circular dichroism spectroscopy.
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Affiliation(s)
- Selvaraj Naveenraj
- Advanced Ceramics and Nanotechnology Laboratory
- Department of Materials Engineering
- University of Concepcion
- Concepcion
- Chile
| | | | - Jerry J. Wu
- Department of Environmental Engineering and Science
- Feng Chia University
- Taichung 407
- Taiwan
| | - Abdullah M. Asiri
- The Center of Excellence for Advanced Materials Research
- King Abdul Aziz University
- Jeddah 21413
- Saudi Arabia
| | - Sambandam Anandan
- Nanomaterials & Solar Energy Conversion Lab
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli 620015
- India
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