1
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Yang M, Mu H, Gao J, Zhen Q, Wang X, Guan X, Li H, Li B. Screening the Optimal Probe by Expounding the ESIPT Mechanism and Photophysical Properties in Bis-HBX with Multimodal Substitutions. Molecules 2024; 29:2692. [PMID: 38893566 PMCID: PMC11173473 DOI: 10.3390/molecules29112692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
DFT and TD-DFT were used in this article to investigate the effects of different substitutions at multiple sites on the photophysical mechanism of bis-HBX in the gas phase. Four different substitution modes were selected, denoted as A1 (X=Me, Y=S), A2 (X=OMe, Y=S), B1 (X=Me, Y=NH), and C1 (X=Me, Y=O). The geometric parameters proved that the IHBs enhanced after photoexcitation, which was conducive to promote the ESIPT process. Combining the analysis of the PECs, it was revealed that the bis-HBX molecule underwent the ESIPT process, and the ease of the ESIPT process was in the order of A1 > A2> B1 > C1. In particular, the TICT process in A1 and B1 promoted the occurrence of the ESIPT process. In addition, the IC process was identified, particularly in C1. Meanwhile, the calculation of fluorescence lifetime and fluorescence rate further confirmed that A1 was the most effective fluorescent probe molecule. This theoretical research provides an innovative theoretical reference for regulating ESIPT reactions and optimizing fluorescent probe molecules.
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Affiliation(s)
- Min Yang
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Hongyan Mu
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Jiaan Gao
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Qi Zhen
- School of Civil Engineering, Changchun Institute of Technology, Changchun 130012, China;
| | - Xiaonan Wang
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Xiaotong Guan
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Hui Li
- Jilin Key Laboratory of Solid-State Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China; (M.Y.); (H.M.); (J.G.); (X.W.); (X.G.)
| | - Bo Li
- State Key Laboratory of High Power Semiconductor Lasers, School of Physics, Changchun University of Science and Technology, Changchun 130022, China
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2
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Zhang Y, Shang C, Cao Y, Ma M, Sun C. Insights into the photophysical properties of 2-(2'-hydroxyphenyl) benzazoles derivatives: Application of ESIPT mechanism on UV absorbers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121559. [PMID: 35777226 DOI: 10.1016/j.saa.2022.121559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/12/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
In this present work, four novel molecules (BPN, BPNS, BPS, and BPSN), possessing excited-state intramolecular proton transfer (ESIPT) characteristics, were designed to quantify the impacts of substituent effects on their photophysical properties. By exploring the primary geometrical parameters concerning hydrogen bonds, it should be noticed that the intramolecular hydrogen bonds (IHBs) of the studied molecules have been strengthened at S1 state. Infrared vibrational spectra analysis illustrates that adding electron-donating group thiophene to the proton donor side can weaken the IHBs in comparison to the electron-withdrawing group pyridine. Through investigating the absorption and fluorescence spectra, it can be clearly found that the maximum absorption peaks of the studied molecules are all located in the UVA region, and their regions of fluorescence peaks are harmless to human skin. Furthermore, considering the light intensity factor, it can be concluded that BPNS is the most potential to be used as UV absorbers in the studied molecules. This work investigates the effects of the positions and types of substituent groups on photophysical properties of 2-(2'-hydroxyphenyl) benzazoles derivatives, which can help design and exploit novel UV absorbers.
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Affiliation(s)
- Yajie Zhang
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Changjiao Shang
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Yunjian Cao
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Min Ma
- College of Science, Northeast Forestry University, Harbin 150040, China
| | - Chaofan Sun
- College of Science, Northeast Forestry University, Harbin 150040, China.
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3
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Munakata T, Yao H. Fluorescent Organic Lewis-Pair Nanoparticles: Excited-State Intramolecular Proton Transfer Molecule 2-(2'-Hydroxyphenyl)benzothiazole Undergoes GSIPT Reactions To Be a Solid-State Nanoemitter. J Phys Chem B 2021; 125:13937-13945. [PMID: 34928617 DOI: 10.1021/acs.jpcb.1c09665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The excited-state intramolecular proton transfer (ESIPT) reaction, one of the fundamental photochemical processes, is known to occur in 2-(2'-hydroxyphenyl)benzothiazole (HBT), showing an enol-to-keto phototautomerization. In this article, Lewis-pair adduct formation is demonstrated between HBT (Lewis base) and diphenylborinic anhydride (DPBA; Lewis acid), in which the proton transfer occurs in the ground state to form the keto tautomer of HBT. The HBT/DPBA Lewis-pair adduct exhibits strong pale-blue fluorescence at 480 nm in dichloroethane. Additionally, organic Lewis-pair nanoparticles of HBT/DPBA are successfully synthesized on the basis of a reprecipitation protocol in which HBT in conjunction with DPBA dissolved in acetone was rapidly injected into water under ultrasonication. DPBA here also acts as a stabilizing or protecting agent to form spherical nanoparticles with well dispersion. The nanoparticles also exhibit strong keto-type emission centered at 490 nm, changing the emission color to bluish-green. Quantum chemical calculations find the sole formation of the keto tautomer of HBT counterpart in the Lewis pair. Importantly, the present synthesis methodology based on Lewis acid-base chemistry does not require complicated operations to organically synthesize solid-state emitters and thus will play a key role in simply controlling the emission behavior for the new type of organic nanoparticles.
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Affiliation(s)
- Taku Munakata
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
| | - Hiroshi Yao
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan
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4
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Martínez-Aguirre MA, Flores Alamo M, Elisa Trejo-Huizar K, Yatsimirsky AK. Boronic acid complexes with amino phenolic N,O-ligands and their use for non-covalent protein fluorescence labeling. Bioorg Chem 2021; 113:104993. [PMID: 34038795 DOI: 10.1016/j.bioorg.2021.104993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 11/25/2022]
Abstract
Phenylboronic acid (PBA) forms neutral tetrahedral N,O-coordinated 6-membered cyclic complexes with stability constants reaching the values as large as 1.3 × 104 M-1 at pH 7.4 in water with amino phenolic compounds including 2-(2'-hydroxyphenyl)-1H-benzimidazole (HPBI) often used for protein probing and labeling. The crystal structures of isolated complexes demonstrate unusually high for boronate adducts degree of the tetrahedral character of the boron atom with short B-N bonds in agreement with their high solution stability. The complexation of PBA with HPBI, causes a strong enhancement of the fluorescence of the "enol" form of the ligand, increases the affinity of the dye to a protein (bovine serum albumin) and makes more pronounced the shift in emission maximum induced by the protein binding. Similar, but larger effects are observed with an amino HPBI derivative and with a stronger boronic acid benzoxaborole. Thus, the binding constant to the protein about 2 × 104 M-1 for free HPBI increases to 1.2 × 106 M-1 for the complex of 5-amino-HPBI with benzoxaborole making it suitable for an efficient non-covalent protein labeling or bioconjugation.
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Affiliation(s)
| | - Marcos Flores Alamo
- Facultad de Química, Universidad Nacional Autónoma de México, 04510 México D.F., Mexico
| | | | - Anatoly K Yatsimirsky
- Facultad de Química, Universidad Nacional Autónoma de México, 04510 México D.F., Mexico.
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5
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Benzothiazole-based colorimetric chemosensors bearing naphthol aldehyde unit: Synthesis, characterization, selective detection of hypochlorite and its application as test strips. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Debia NP, Rodríguez JJ, da Silveira CH, Chaves OA, Iglesias BA, Rodembusch FS, Lüdtke DS. Synthesis and photophysics of benzazole based triazoles with amino acid-derived pendant units. Multiparametric optical sensors for BSA and CT-DNA in solution. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113092] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Synthesis, photophysical characterization, CASSCF/CASPT2 calculations and CT-DNA interaction study of amino and azido benzazole analogues. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111938] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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8
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Zhang P, Guo X, Xiao Y, Zhang Q, Ding C. Twisted intramolecular charge transfer (TICT) based fluorescent probe for lighting up serum albumin with high sensitivity in physiological conditions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117318. [PMID: 31272040 DOI: 10.1016/j.saa.2019.117318] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/25/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Accurate detection of human serum albumin (HSA) in biological samples is quite meaningful for early disease diagnosis and treatment. Herein, a novel fluorescent probe 1-ethyl-4-[2-[4-(diethylamino)-2-hydroxyphenyl]ethenyl]]-pyridinium salt (DEHP) was developed for HSA determination. The inherent fluorescence of DEHP is essentially negligible at physiological conditions assigned to the well-developed twisted intramolecular charge transfer (TICT) protocol. An intriguing fluorescence light up is triggered as the addition of HSA, on account of the inhibited TICT procedure when DEHP enters the hydrophobic cavity of protein HSA. This combination leads to a turn on fluorescent response for HSA with a detection limit of 4.8 nM. After an overall investigation, it has been proved that the strong binding between DEHP and HSA is specific-site-related. In additional, the probe implies a great potential to assist clinical diagnosis due to the usage in actual serum detection. Cell imaging also shows that the probe is expected to monitor HSA production process at cell level.
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Affiliation(s)
- Peng Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Xinjie Guo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yuzhe Xiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Qian Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Caifeng Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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9
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Razzak MA, Lee JE, Choi SS. Structural insights into the binding behavior of isoflavonoid glabridin with human serum albumin. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.01.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Xu YJ, Su MM, Li HL, Liu QX, Xu C, Yang YS, Zhu HL. A fluorescent sensor for discrimination of HSA from BSA through selectivity evolution. Anal Chim Acta 2018; 1043:123-131. [DOI: 10.1016/j.aca.2018.09.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 01/20/2023]
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11
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Lu YT, Chen TL, Chang KS, Chang CM, Wei TY, Liu JW, Hsiao CA, Shih TL. Synthesis of novel C4-benzazole naphthalimide derivatives with potent anti-tumor properties against murine melanoma. Bioorg Med Chem 2017; 25:789-794. [DOI: 10.1016/j.bmc.2016.11.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 11/29/2016] [Indexed: 01/08/2023]
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12
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Bhattacharya A, Das S, Mukherjee TK. Insights into the Thermodynamics of Polymer Nanodot-Human Serum Albumin Association: A Spectroscopic and Calorimetric Approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12067-12077. [PMID: 27794621 DOI: 10.1021/acs.langmuir.6b02658] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
With the advent of newer luminescent nanoparticles for bioimaging applications, their complex interactions with individual biomolecules need to be understood in great detail, before their direct application into cellular environments. Here, we have presented a systematic and detailed study on the interaction between luminescent polymer nanodots (PNDs) and human serum albumin (HSA) in its free and ligand-bound state with the help of spectrophotometric and calorimetric techniques. At physiological pH (pH = 7.4), PNDs quench the intrinsic fluorescence of HSA as a consequence of ground-state complex formation. The binding stoichiometry and various thermodynamic parameters have been evaluated by using isothermal titration calorimetry and the van't Hoff equation. It has been found that the association of PNDs with HSA is spontaneous (ΔG0 = -32.48 ± 1.24 kJ mol-1) and is driven by a favorable negative standard enthalpy change (ΔH0 = -52.86 ± 2.12 kJ mol-1) and an unfavorable negative standard entropy change (ΔS0 = -68.38 ± 2.96 J mol-1 K-1). These results have been explained by considering hydrogen bonding interactions between amino and hydroxyl groups (-NH2 and -OH) of PNDs and carboxylate groups (-COO-) of glutamate (Glu) and aspartate (Asp) residues of HSA. The binding constant of PNDs with HSA is estimated to be 4.90 ± 0.19 × 105 M-1. Moreover, it has been observed that warfarin-bound HSA (war-HSA) shows a significantly lower binding affinity (Kb = 1.15 ± 0.19 × 105 M-1) toward PNDs, whereas ibuprofen-bound HSA (ibu-HSA) shows a slightly lower affinity (Kb = 3.47 ± 0.13 × 105 M-1) compared with the free HSA. In addition, our results revealed that PNDs displace warfarin from site I (subdomain IIA) of HSA because of the partial unfolding of war-HSA. We hope that the present study will be helpful to understand the fundamental interactions of these biocompatible PNDs with various biological macromolecules.
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Affiliation(s)
- Arpan Bhattacharya
- Discipline of Chemistry, Indian Institute of Technology Indore , Simrol, Khandwa Road, Indore 453552, Madhya Pradesh, India
| | - Somnath Das
- Discipline of Chemistry, Indian Institute of Technology Indore , Simrol, Khandwa Road, Indore 453552, Madhya Pradesh, India
| | - Tushar Kanti Mukherjee
- Discipline of Chemistry, Indian Institute of Technology Indore , Simrol, Khandwa Road, Indore 453552, Madhya Pradesh, India
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13
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Zhou X, Jiang Y, Zhao X, Guo D. ESIPT-Based Photoactivatable Fluorescent Probe for Ratiometric Spatiotemporal Bioimaging. SENSORS 2016; 16:s16101684. [PMID: 27754338 PMCID: PMC5087472 DOI: 10.3390/s16101684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/20/2016] [Accepted: 09/22/2016] [Indexed: 11/16/2022]
Abstract
Photoactivatable fluorophores have become an important technique for the high spatiotemporal resolution of biological imaging. Here, we developed a novel photoactivatable probe (PHBT), which is based on 2-(2-hydroxyphenyl)benzothiazole (HBT), a small organic fluorophore known for its classic luminescence mechanism through excited-state intramolecular proton transfer (ESIPT) with the keto form and the enol form. After photocleavage, PHBT released a ratiometric fluorophore HBT, which showed dual emission bands with more than 73-fold fluorescence enhancement at 512 nm in buffer and more than 69-fold enhancement at 452 nm in bovine serum. The probe displayed a high ratiometric imaging resolution and is believed to have a wide application in biological imaging.
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Affiliation(s)
- Xiaohong Zhou
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
- Environment Monitoring Department, Changsha Environmental Protection College, Changsha 410004, China.
| | - Yuren Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Xiongjie Zhao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Dong Guo
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
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14
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Quantitative parameters of complexes of tris(1-alkylindol-3-yl)methylium salts with serum albumin: Relevance for the design of drug candidates. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 162:570-576. [PMID: 27475780 DOI: 10.1016/j.jphotobiol.2016.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 07/16/2016] [Indexed: 01/12/2023]
Abstract
Triarylmethane derivatives are extensively investigated as antitumor and antibacterial drug candidates alone and as photoactivatable compounds. In the series of tris(1-alkylindol-3-yl)methylium salts (TIMs) these two activities differed depending on the length of N-alkyl chain, with C4-5 derivatives being the most potent compared to the shorter or longer chain analogs and to the natural compound turbomycin A (no N-substituent). Given that the human serum albumin (HSA) is a major transporter protein with which TIMs can form stable complexes, and that the formation of these complexes might be advantageous for phototoxicity of TIMs we determined the quantitative parameters of TIMs-HSA binding using spectroscopic methods and molecular docking. TIMs bound to HSA (1:1 stoichiometry) altered the protein's secondary structure by changing the α-helix/β-turn ratio. The IIa subdomain (Sudlow site I) is the preferred TIM binding site in HSA as determined in competition experiments with reference drugs ibuprofen and warfarin. The values of binding constants increased with the number of CH2 groups from 0 to 6 and then dropped down for C10 compound, a dependence similar to the one observed for cytocidal potency of TIMs. We tend to attribute this non-linear dependence to an interplay between hydrophobicity and steric hindrance, the two key characteristics of TIMs-HSA complexes calculated in the molecular docking procedure. These structure-activity relationships provide evidence for rational design of TIMs-based antitumor and antimicrobial drugs.
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15
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Mtiraoui H, Gharbi R, Msaddek M, Bretonnière Y, Andraud C, Sabot C, Renard PY. 1,5-Benzodiazepin-2-ones: Investigation of a Family of Photoluminescent Materials. J Org Chem 2016; 81:4720-7. [DOI: 10.1021/acs.joc.6b00627] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hasan Mtiraoui
- Laboratory
of Heterocyclic Chemistry Natural Products and Reactivity/CHPNR, Department
of Chemistry, Faculty of Science of Monastir, Université Monastir, 5000 Monastir, Tunisia
| | - Rafik Gharbi
- Laboratory
of Heterocyclic Chemistry Natural Products and Reactivity/CHPNR, Department
of Chemistry, Faculty of Science of Monastir, Université Monastir, 5000 Monastir, Tunisia
| | - Moncef Msaddek
- Laboratory
of Heterocyclic Chemistry Natural Products and Reactivity/CHPNR, Department
of Chemistry, Faculty of Science of Monastir, Université Monastir, 5000 Monastir, Tunisia
| | - Yann Bretonnière
- Univ Lyon,
ENS
de Lyon, CNRS UMR5182, Université Lyon 1, Laboratoire de Chimie, F-69342 Lyon, France
| | - Chantal Andraud
- Univ Lyon,
ENS
de Lyon, CNRS UMR5182, Université Lyon 1, Laboratoire de Chimie, F-69342 Lyon, France
| | - Cyrille Sabot
- Normandie Univ, COBRA, UMR 6014 & FR 3038; Univ Rouen-Normandie; INSA Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France
| | - Pierre-Yves Renard
- Normandie Univ, COBRA, UMR 6014 & FR 3038; Univ Rouen-Normandie; INSA Rouen; CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France
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16
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Azarias C, Budzák Š, Laurent AD, Ulrich G, Jacquemin D. Tuning ESIPT fluorophores into dual emitters. Chem Sci 2016; 7:3763-3774. [PMID: 29997864 PMCID: PMC6008603 DOI: 10.1039/c5sc04826e] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 02/23/2016] [Indexed: 12/24/2022] Open
Abstract
Using first-principle approaches, we show how ESIPT can be controlled by fine-tuning of substituents, hence leading to new dual emitters.
Dyes undergoing excited-state intramolecular proton transfer (ESIPT) are known to present large Stokes shifts as a result of the important geometrical reorganisation following photon absorption. When the ESIPT process is not quantitative, one can obtain dual emitters characterised by two distinct fluorescence bands, observed due to emissions from both the canonical and ESIPT isomers. However, dual emission generally requires to maintain a very specific balance, as the relative excited-state free energies of the two tautomers have to be within a narrow window to observe the phenomenon. Consequently, simple chemical intuition is insufficient to optimise dual emission. In the present contribution, we investigate, with the help of quantum-mechanical tools and more precisely, time-dependent density functional theory (TD-DFT) and algebraic diagrammatic construction (ADC), a wide panel of possible ESIPT/dual emitters with various substituents. The selected protocol is first shown to be very robust on a series of structures with known experimental behaviour, and next is applied to novel derivatives with various substituents located at different positions. This work encompasses the largest chemical library of potential ESIPT compounds studied to date. We pinpoint the most promising combinations for building dual emitters, highlight unexpected combination effects and rationalise the impact of the different auxochromes.
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Affiliation(s)
- Cloé Azarias
- CEISAM , UMR CNRS 6230 , Université de Nantes , BP 92208, 2, Rue de la Houssinière , 44322 Nantes, Cedex 3 , France . ; Tel: +33-2-51-12-55-64
| | - Šimon Budzák
- CEISAM , UMR CNRS 6230 , Université de Nantes , BP 92208, 2, Rue de la Houssinière , 44322 Nantes, Cedex 3 , France . ; Tel: +33-2-51-12-55-64
| | - Adèle D Laurent
- CEISAM , UMR CNRS 6230 , Université de Nantes , BP 92208, 2, Rue de la Houssinière , 44322 Nantes, Cedex 3 , France . ; Tel: +33-2-51-12-55-64
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l'Energie , l'Environnement et la Santé (ICPEES) UMR7515 CNRS Université de Strasbourg , 25 rue Becquerel , 67087 Strasbourg Cedex 02 , France
| | - Denis Jacquemin
- CEISAM , UMR CNRS 6230 , Université de Nantes , BP 92208, 2, Rue de la Houssinière , 44322 Nantes, Cedex 3 , France . ; Tel: +33-2-51-12-55-64.,Institut Universitaire de France , 1, rue Descartes , F-75005 Paris Cedex 05 , France
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17
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Sulaiman SAJ, Al-Rasbi GS, Abou-Zied OK. Photophysical properties of hydroxyphenyl benzazoles and their applications as fluorescent probes to study local environment in DNA, protein and lipid. LUMINESCENCE 2016; 31:614-25. [DOI: 10.1002/bio.3106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 01/01/2016] [Accepted: 01/10/2016] [Indexed: 12/22/2022]
Affiliation(s)
| | - Ghalia S. Al-Rasbi
- Department of Chemistry; Sultan Qaboos University; Muscat Sultanate of Oman
| | - Osama K. Abou-Zied
- Department of Chemistry; Sultan Qaboos University; Muscat Sultanate of Oman
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Zahid NI, Abou-Zied OK, Nabila Saari NA, Hashim R. Comparative study of the inverse versus normal bicontinuous cubic phases of the β-d-glucopyranoside water-driven self-assemblies using fluorescent probes. RSC Adv 2016. [DOI: 10.1039/c5ra19794e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
This work investigates the head group region of the inverse and normal bicontinuous cubic phases (Ia3d space group) of the glucopyranoside/water system using 2-(2′-hydroxyphenyl)benzoxazole and its derivatives as fluorescent probes.
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Affiliation(s)
- N. Idayu Zahid
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Osama K. Abou-Zied
- Department of Chemistry
- Faculty of Science
- Sultan Qaboos University
- Muscat
- Sultanate of Oman
| | - N. A. Nabila Saari
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | - Rauzah Hashim
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
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19
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Realizing the recognition features of model antipsychotic compounds by important protein: Photochemical and computational studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 148:21-30. [DOI: 10.1016/j.jphotobiol.2015.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/16/2015] [Accepted: 03/19/2015] [Indexed: 01/09/2023]
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20
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Detecting local heterogeneity and ionization ability in the head group region of different lipidic phases using modified fluorescent probes. Sci Rep 2015; 5:8699. [PMID: 25731606 PMCID: PMC4346976 DOI: 10.1038/srep08699] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 02/02/2015] [Indexed: 11/09/2022] Open
Abstract
Local heterogeneity in lipid self-assembly is important for executing the cellular membrane functions. In this work, we chemically modified 2-(2'-hydroxyphenyl)benzoxazole (HBO) and attached a C8 alkyl chain in two different locations to probe the microscopic environment of four lipidic phases of dodecyl β-maltoside. The fluorescence change in HBO and the new probes (HBO-1 and HBO-2) shows that in all phases (micellar, hexagonal, cubic and lamellar) three HBO tautomeric species (solvated syn-enol, anionic, and closed syn-keto) are stable. The formation of multi tautomers reflects the heterogeneity of the lipidic phases. The results indicate that HBO and HBO-1 reside in a similar location within the head group region, whereas HBO-2 is slightly pushed away from the sugar-dominated area. The stability of the solvated syn-enol tautomer is due to the formation of a hydrogen bond between the OH group of the HBO moiety and an adjacent oxygen atom of a sugar unit. The detected HBO anions was proposed to be a consequence of this solvation effect where a hydrogen ion abstraction by the sugar units is enhanced. Our results point to a degree of local heterogeneity and ionization ability in the head group region as a consequence of the sugar amphoterism.
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21
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Gavvala K, Satpathi S, Hazra P. Ultrafast dynamics of a molecular rotor in chemical and biological nano-cavities. RSC Adv 2015. [DOI: 10.1039/c5ra13298c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Excited state dynamics of CCVJ are investigated inside the nano-cavities of CD and HSA using steady-state and femtosecond up-conversion techniques.
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Affiliation(s)
- Krishna Gavvala
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Pune 411008
- India
| | - Sagar Satpathi
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Pune 411008
- India
| | - Partha Hazra
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Pune 411008
- India
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22
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Abou-Zied OK, Barbour A, Al-Sharji NA, Philip K. Elucidating the mechanism of peptide interaction with membranes using the intrinsic fluorescence of tryptophan: perpendicular penetration of cecropin B-like peptides into Pseudomonas aeruginosa. RSC Adv 2015. [DOI: 10.1039/c4ra15246h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mechanism of peptide interaction with bacterial membranes can be studied effectively by using the intrinsic fluorescence of tryptophan.
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Affiliation(s)
- Osama K. Abou-Zied
- Department of Chemistry
- Faculty of Science
- Sultan Qaboos University
- Muscat
- Sultanate of Oman
| | - Abdelahhad Barbour
- Division of Microbiology
- Institute of Biological Sciences
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Nada A. Al-Sharji
- Department of Chemistry
- Faculty of Science
- Sultan Qaboos University
- Muscat
- Sultanate of Oman
| | - Koshy Philip
- Division of Microbiology
- Institute of Biological Sciences
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
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23
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Peng W, Ding F, Peng YK, Sun Y. Molecular recognition of malachite green by hemoglobin and their specific interactions: insights from in silico docking and molecular spectroscopy. MOLECULAR BIOSYSTEMS 2014; 10:138-48. [PMID: 24226412 DOI: 10.1039/c3mb70416e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Malachite green is an organic compound that can be widely used as a dyestuff for various materials; it has also emerged as a controversial agent in aquaculture. Since malachite green is proven to be carcinogenic and mutagenic, it may become a hazard to public health. For this reason, it is urgently required to analyze this controversial dye in more detail. In our current research, the interaction between malachite green and hemoglobin under physiological conditions was investigated by the methods of molecular modeling, fluorescence spectroscopy, circular dichroism (CD) as well as hydrophobic ANS displacement experiments. From the molecular docking, the central cavity of hemoglobin was assigned to possess high-affinity for malachite green, this result was corroborated by time-resolved fluorescence and hydrophobic ANS probe results. The recognition mechanism was found to be of static type, or rather the hemoglobin-malachite green complex formation occurred via noncovalent interactions such as π-π interactions, hydrogen bonds and hydrophobic interactions with an association constant of 10(4) M(-1). Moreover, the results also show that the spatial structure of the biopolymer was changed in the presence of malachite green with a decrease of the α-helix and increase of the β-sheet, turn and random coil suggesting protein damage, as derived from far-UV CD and three-dimensional fluorescence. Results of this work will help to further comprehend the molecular recognition of malachite green by the receptor protein and the possible toxicological profiles of other compounds, which are the metabolites and ramifications of malachite green.
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Affiliation(s)
- Wei Peng
- Department of Chemistry, China Agricultural University, Beijing 100193, China
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24
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Peng W, Ding F, Jiang YT, Sun Y, Peng YK. Evaluation of the biointeraction of colorant flavazin with human serum albumin: insights from multiple spectroscopic studies, in silico docking and molecular dynamics simulation. Food Funct 2014; 5:1203-17. [DOI: 10.1039/c3fo60712g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The biological activities of azo colorant may significantly be influenced by the biointeraction of ligand to protein in the human body.
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Affiliation(s)
- Wei Peng
- College of Food Science & Engineering
- Northwest A&F University
- Yangling 712100, China
- Department of Chemistry
- China Agricultural University
| | - Fei Ding
- Department of Chemistry
- China Agricultural University
- Beijing 100193, China
- Department of Biological Engineering
- Massachusetts Institute of Technology
| | - Yu-Ting Jiang
- Department of Chemistry
- University of Ottawa
- Ottawa, Canada
| | - Ying Sun
- College of Resources and Environmental Sciences
- China Agricultural University
- Beijing 100193, China
| | - Yu-Kui Peng
- College of Food Science & Engineering
- Northwest A&F University
- Yangling 712100, China
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25
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Tan X, Song Z. Relationship investigation of molecular structure–binding affinity of antibiotics to bovine serum albumin using flow injection chemiluminescence analysis and molecular docking. RSC Adv 2014. [DOI: 10.1039/c3ra45885g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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26
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Huang S, Zhu F, Xiao Q, Zhou Q, Su W, Qiu H, Hu B, Sheng J, Huang C. Combined spectroscopy and cyclic voltammetry investigates the interaction between [(η6-p-cymene)Ru(benzaldehyde-N(4)-phenylthiosemicarbazone)Cl]Cl anticancer drug and human serum albumin. RSC Adv 2014. [DOI: 10.1039/c4ra06083k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The interaction between Ru anticancer drug and HSA was investigated systematically under physiological conditions.
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Affiliation(s)
- Shan Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Fawei Zhu
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Qi Xiao
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
| | - Quan Zhou
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Wei Su
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Hangna Qiu
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Baoqing Hu
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization (Guangxi Teachers Education University)
- Ministry of Education
- China
| | - Jiarong Sheng
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
| | - Chusheng Huang
- College of Chemistry and Materials Science
- Guangxi Teachers Education University
- Nanning 530001, P. R. China
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27
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Peng W, Ding F, Peng YK, Jiang YT, Zhang L. Binding patterns and structure-affinity relationships of food azo dyes with lysozyme: a multitechnique approach. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:12415-12428. [PMID: 24319998 DOI: 10.1021/jf4039327] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Food dyes serve to beguile consumers: they are often used to imitate the presence of healthful, colorful food produce such as fruits and vegetables. But considering the hurtful impact of these chemicals on the human body, it is time to thoroughly uncover the toxicity of these food dyes at the molecular level. In the present contribution, we have examined the molecular reactions of protein lysozyme with model food azo compound Color Index (C.I.) Acid Red 2 and its analogues C.I. Acid Orange 52, Solvent Yellow 2, and the core structure of azobenzene using a combination of biophysical methods at physiological conditions. Fluorescence, circular dichroism (CD), time-resolved fluorescence, UV-vis absorption as well as computer-aided molecular modeling were used to analyze food dye affinity, binding mode, energy transfer, and the effects of food dye complexation on lysozyme stability and conformation. Fluorescence emission spectra indicate complex formation at 10(-5) M dye concentration, and this corroborates time-resolved fluorescence results showing the diminution in the tryptophan (Trp) fluorescence mainly via a static type (KSV = 1.505 × 10(4) M(-1)) and Förster energy transfer. Structural analysis displayed the participation of several amino acid residues in food dye protein adducts, with hydrogen bonds, π-π and cation-π interactions, but the conformation of lysozyme was unchanged in the process, as derived from fluorescence emission, far-UV CD, and synchronous fluorescence spectra. The overall affinity of food dye is 10(4) M(-1) and there exists only one kind of binding domain in protein for food dye. These data are consistent with hydrophobic probe 8-anilino-1-naphthalenesulfonic acid (ANS) displacement, and molecular modeling manifesting the food dye binding patch was near to Trp-62 and Trp-63 residues of lysozyme. On the basis of the computational analyses, we determine that the type of substituent on the azobenzene structure has a powerful influence on the toxicity of food dyes. Results from this work testify that model protein, though an indirect method, provides a more comprehensive profile of the essence of toxicity evaluation of food dyes.
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Affiliation(s)
- Wei Peng
- College of Food Science & Engineering, Northwest A&F University , Yangling 712100, China
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28
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Abou-Zied OK, Al-Busaidi BY, Husband J. Solvent Effect on Anthranilic Acid Spectroscopy. J Phys Chem A 2013; 118:103-9. [DOI: 10.1021/jp4087317] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Osama K. Abou-Zied
- Department of Chemistry,
Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123, Muscat, Sultanate of Oman
| | - Badriya Y. Al-Busaidi
- Department of Chemistry,
Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123, Muscat, Sultanate of Oman
| | - John Husband
- Department of Chemistry,
Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123, Muscat, Sultanate of Oman
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29
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Massue J, Ulrich G, Ziessel R. Effect of 3,5-Disubstitution on the Optical Properties of Luminescent 2-(2′-Hydroxyphenyl)benzoxazoles and Their Borate Complexes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300616] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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