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Arora A, Sharma K, Tripathi SK. Impact of luminescent MoSe 2 quantum dots on activity of trypsin under different pH environment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:122958. [PMID: 37406547 DOI: 10.1016/j.saa.2023.122958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/20/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023]
Abstract
It is vital that a straightforward detection approach for trypsin should be developed as it is important diagnostic tool for a number of diseases. Herein, the impact of luminescent MoSe2 quantum dots on trypsin activity under different pH environment has been studied. Addition of trypsin to MoSe2 quantum dots enhanced the fluorescence of quantum dots whereas quantum dots resulted in quenching of fluorescence of trypsin. The quenching behavior at various pH and temperature was examined and revealed that the MoSe2-trypsin complex stabilized through the electrostatic interactions. The obtained negative values of zeta potential of the complex -0.11 mV, -0.30 mV and -0.59 mV for pH 6.0,7.6 and 9.0 respectively confirmed the stability of the complex. The separation between the donor and acceptor atoms in energy transfer mechanism was found to decrease (1.48 nm to 1.44 nm to 1.30 nm) with increasing value of pH. It was also evident that trypsin retained its enzyme activity in the trypsin-MoSe2 complex and under different pH environment. The Vant Hoff plot from quenching revealed 1 binding site for quantum dots by trypsin for all pH of buffer solution. The complex formation of trypsin-MoSe2 quantum dots was verified for the first time using fluorescence spectroscopy and it revealed that tryspin form complex with MoSe2 quantum dots through electrostatic interactions. Our results revealed that the MoSe2 quantum dots stabilized and sheltered the active sites of trypsin, which was likely the cause of the increased bioavailability of MoSe2 quantum dots in enzymes.
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Affiliation(s)
- Anmol Arora
- Centre of Advanced Study in Physics, Department of Physics, Panjab University, Chandigarh 160014, India
| | - Kriti Sharma
- Department of Physics, Goswami Ganesh Dutta Sanatan Dharma College, Sector 32-C, Chandigarh 160030, India.
| | - S K Tripathi
- Centre of Advanced Study in Physics, Department of Physics, Panjab University, Chandigarh 160014, India.
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Calapoglu F, Sahin S, Ozmen I, Ozbek Yazici S. Investigation of interaction between dexamethasone/pheniramine and trypsin by fluorescence, UV-vis, CD, and molecular docking. J Biomol Struct Dyn 2022; 41:2202-2210. [PMID: 35098895 DOI: 10.1080/07391102.2022.2029565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Antihistamines and glucocorticoids are commonly used to treat allergy symptoms and the inflammatory conditions. In present study, the in-vitro binding interactions a glucocortikoid, dexamethasone/an antihistamine, pheniramine with TSN (TSN) secreted from pancreas to small intestine for protein digestion were investigated by fluorescence emission spectroscopy (FES), UV-Vis spectroscopy, synchronous fluorescence spectroscopy (SFS), CD spectroscopy, FT-IR and molecular modeling methods. Also, the effect of these drugs on the catalytic activity of trypsin (TSN) was determined. The fluorescence quenching experiments indicated that each drugs quenched the intrinsic fluorescence of TSN with their increased concentrations. The results of SFS and UV-Vis spectra proved the interaction of dexamethasone and pheniramine with TSN. CD spectra showed that the secondary structure of enzyme was altered in the presence of the drugs. All these spectroscopy results were validated and explained by molecular docking and molecular dynamic simulation (MD) studies. The IC50 values were determined as 0.0049 mM and 0.0038 mM for dexamethasone and pheniramine, respectively. So, both drugs have inhibition effect on the catalytic activity of TSN. The results of this study can provide valuable information in the field of pharmacokinetics and pharmacodynamics.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Furkan Calapoglu
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta, Turkey
| | - Selmihan Sahin
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta, Turkey
| | - Ismail Ozmen
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta, Turkey
| | - Sercan Ozbek Yazici
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Burdur Mehmet Akif Ersoy University, Istiklal Yerleskesi, Burdur, Turkey
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Sahin S, Calapoglu F, Ozbek Yazici S, Ozmen I. Investigation of binding interaction behavior between antiemetic drugs and Trypsin by spectroscopy and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 258:119817. [PMID: 33901946 DOI: 10.1016/j.saa.2021.119817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
Antiemetic drugs are used to control excessive vomiting and nausea and generally absorbed through gastrointestinal tract. In present study, the in-vitro binding interactions two of the antiemetic drugs (dimenhydrinate and ondansetron) between Trypsin (Tsn) secreted from pancreas to small intestine for protein digestion were investigated by fluorescence emission spectroscopy (FES), UV-VIS spectroscopy, synchronous fluorescence spectroscopy (SFS), FT-IR spectroscopy and molecular modeling methods. Also, the effect of these drugs on the catalytic activity of Tsn was determined. The fluorescence quenching experiments indicated that each drugs quenched the intrinsic fluorescence of Tsn with their increased concentrations. The results of SFS and UV-VIS spectra proved the interaction of dimenhydrinate and ondansetron with Tsn. FT-IR spectra showed that the secondary structure of enzyme was altered in the presence of the drugs. All these spectroscopy results were validated and explained by molecular docking studies. Both drugs have inhibition effect on the catalytic activity of Tsn and the IC50 values were determined as 2.6 × 10-4 M and 6.4 × 10-4 M for dimenhydrinate and ondansetron, respectively. Docking results revealed that the hydrogen bond interaction of dimenhydrinate with active-site residue Ser195 and ondansetron with active-site residues His57 and Ser195 hydrogen bonds might be cause the inhibition of enzyme activity. The results of this study can provide valuable information in the field of pharmacokinetics and pharmacodynamics.
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Affiliation(s)
- Selmihan Sahin
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta 32260, Turkey.
| | - Furkan Calapoglu
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta 32260, Turkey
| | - Sercan Ozbek Yazici
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Burdur Mehmet Akif Ersoy University, Istiklal Yerleskesi, Burdur 15100, Turkey
| | - Ismail Ozmen
- Faculty of Arts and Sciences, Department of Chemistry, Suleyman Demirel University, Cunur, Isparta 32260, Turkey
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Sadeghi S, Oliaei S. Microextraction of sulfathiazole from milk and honey samples using a polymeric ionic liquid membrane followed by fluorometric determination. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103774] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Chen L, Liu Y, Cheng G, Fan Z, Yuan J, He S, Zhu G. A novel fluorescent probe based on N, B, F co-doped carbon dots for highly selective and sensitive determination of sulfathiazole. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:143432. [PMID: 33168252 DOI: 10.1016/j.scitotenv.2020.143432] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
The widespread occurrence of sulfathiazole (STZ) in the environment has raised concerns regarding the potential risks to ecosystem and human health. Thus, there is a need to develop facile and efficient methods for monitoring STZ. In this study, a novel fluorescent probe, based on N, B, F co-doped carbon dots (N, B, F-CDs), was developed for the highly sensitive and selective determination of STZ. The fluorescent N, B, F-CDs were prepared via a one-step hydrothermal method using malonate and 1-allyl-3-vinylimidazolium tetrafluoroborate ionic liquid as precursors. The obtained N, B, F-CDs exhibited excellent fluorescence response toward STZ due to the inner filter effect (IFE), which caused the fluorescence to be quenched. The fluorescent probe allowed the STZ concentration to be accurately determined with a low detection limit of 5.5 ng mL-1 in two wide linear ranges of 0.008-10 μg mL-1 and 10-45 μg mL-1. The practicability of the fluorescent probe was further validated in river water, soil, milk, and egg samples, and the satisfactory spiked recoveries of STZ ranged from 96.1 to 101.6%. The proposed fluorescent probe based on N, B, F-CDs can be easily prepared and possess high selectivity and sensitivity, thereby displaying its tremendous potential for the identification and determination of STZ in the environment.
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Affiliation(s)
- Letian Chen
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Yongli Liu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China.
| | - Guohao Cheng
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Zegang Fan
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Jinyu Yuan
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Shuailong He
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Guifen Zhu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China.
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Novel 1,8-naphthalimide dye for multichannel sensing of H+ and Cu2+. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-017-3235-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Zhang R, Wu Q, Liu R. Characterizing the binding interaction between ultrafine carbon black (UFCB) and catalase: electron microscopy and spectroscopic analysis. RSC Adv 2017. [DOI: 10.1039/c7ra03805d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
UFCB bound close to the heme of CAT and dissolved well in tween 80, significantly inhibiting the activity of CAT.
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Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering
- Shandong University
- China–America CRC for Environment & Health
- Jinan 250100
- P. R. China
| | - Qianqian Wu
- School of Environmental Science and Engineering
- Shandong University
- China–America CRC for Environment & Health
- Jinan 250100
- P. R. China
| | - Rutao Liu
- School of Environmental Science and Engineering
- Shandong University
- China–America CRC for Environment & Health
- Jinan 250100
- P. R. China
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Lin X, Wang Q, Peng X, Li H. The binding properties of metandienone and human serum albumin by comparing with other five similar compounds. J Biochem Mol Toxicol 2016; 31. [PMID: 27762462 DOI: 10.1002/jbt.21866] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/07/2016] [Accepted: 09/13/2016] [Indexed: 11/08/2022]
Abstract
Metandienone (MET) is an exogenous anabolic androgenic steroid. The interaction between MET and human serum albumin (HSA) was investigated by molecular modeling and different optical techniques. There was no possibility of energy transfer, and the fluorescence quenching of HSA induced by MET was mainly due to the complex formation. The differences of binding ability between MET and compounds 1-5 were significantly caused by space steric hindrance. The single crystallographic data of two steroids (compounds 4 and 5) were obtained in the methanol at the first time. In addition, the binding ability was slightly affected by -OH, -CH3 , and -COCH3 . The results of displacement experiment demonstrated that the MET binding site was mainly located in site 1 of HSA. H-bonding and van der Waals forces were significant in the MET-HSA binding. MET played an insignificant role on the local conformation change in HSA.
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Affiliation(s)
- Xiang Lin
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Qing Wang
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Xilin Peng
- Sinopharm Chuankang Pharmaceutical Co., Ltd., Chengdu, 611731, People's Republic of China
| | - Hui Li
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
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Study of Binding Properties Between Two New Ibuprofen and Naproxen Based Acyl Hydrazone Derivatives and Trypsin. J Fluoresc 2016; 26:113-9. [PMID: 26482593 DOI: 10.1007/s10895-015-1690-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/07/2015] [Indexed: 01/27/2023]
Abstract
Two acyl hydrazone derivatives, AHI and AHN,made from ibuprofen and naproxen-derived hydrazides, were prepared and studied of binding properties with serine protease trypsin by UV-vis absorption and fluorescence quenching at pH 7.4. The results suggest that both hydrazones can interact strongly with trypsin and there are the formation of trypsin-hydrazone complexes. The Stern-Volmer constants, binding constants,binding sites and the corresponding thermodynamic parameters ΔH°, ΔS° and ΔG° were calculated at different temperatures.The effect of common metal ions on the constants was also discussed. The binding modes can be explained on the basis of hydrogen bonds and van der Waals forces. The binding distance(r) ~3 nm between the donor (trypsin) and acceptors (AHI and AHN) was obtained according to Förster's non-radiative energy transfer theory. Moreover, LOD and LOQ of hydrazones were calculated in the presence of trypsin.
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Zeng HJ, Wang YP, Yang R, You J, Qu LB. Inhibitory effects of daidzein and genistein on trypsin: Insights from spectroscopic and molecular docking studies. Int J Biol Macromol 2016; 89:336-43. [DOI: 10.1016/j.ijbiomac.2016.04.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 04/17/2016] [Accepted: 04/18/2016] [Indexed: 12/22/2022]
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12
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Krishnan A, Sreeremya TS, Mohamed AP, Hareesh US, Ghosh S. Concentration quenching in cerium oxide dispersions via a Förster resonance energy transfer mechanism facilitates the identification of fatty acids. RSC Adv 2015. [DOI: 10.1039/c4ra17326k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The distance dependence of FRET has been utilized, as a simple and novel analytical tool, for explaining the fluorescence quenching of cerium dioxide dispersions and in the prediction of the structure of fatty acids.
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Affiliation(s)
- Asha Krishnan
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Thadathil S. Sreeremya
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - A. Peer Mohamed
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Unnikrishnan Saraswathy Hareesh
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Swapankumar Ghosh
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
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