1
|
H Krishne D, Sharma K, Reddy AJ, Koppal VV. Exploring the molecular binding mechanism of 6-fluoro, 4-hydroxy, 2- methyl quinoline with TiO 2 nanoparticles: A spectroscopic, thermodynamic, and insights into the solvatochromic effect. J Fluoresc 2024:10.1007/s10895-024-03829-z. [PMID: 38958908 DOI: 10.1007/s10895-024-03829-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
This study investigates the interaction between titanium oxide nanoparticles (TiO2 NPs) and the heterocyclic fluorophore 6-fluoro,4-hydroxy,2-methylquinoline (6-FHMQ), aiming to understand fluorescence quenching mechanisms and thermodynamic characteristics. Spectroscopic techniques including spectrofluorometry (FL) and spectrophotometry (UV-Vis) were used, with a lifetime decay (τ) of 0.18 ns for 6-FHMQ measured using time correlated single photon counting (TCSPC). The interaction between 6-FHMQ and TiO2 NPs revealed a mix of static and dynamic fluorescence quenching mechanisms, with increasing quenching constants (Ksv) and a higher bimolecular quenching rate constant (Kq). The dynamic nature was highlighted by a temperature-dependent increase in binding sites from 1 to ~ 2. Spontaneous complexation was affirmed by negative change in free energy (ΔG), with negative change in enthalpy (ΔH) and a positive change in entropy (ΔS) values indicating favorable electrostatic and ionic interactions. The impact of varying TiO2 NP concentrations on 6-FHMQ absorption was analyzed using the Benesi-Hildbrand equation, with a quantum yield of 0.61 determined. By forster resonance energy transfer (FRET) theory, the proximity between 6-FHMQ and TiO2 NPs was found to be less than 70 Å. Ground and excited state dipole moments of 6-FHMQ in different solvents were calculated to demonstrate solvent sensing ability and charge transfer properties. Ultimately, this study serves as a testament to the power of scientific innovation in the realms of drug delivery and tissue engineering.
Collapse
Affiliation(s)
- Deepa H Krishne
- Department of Physics, M S Ramaiah Institute of Technology (Affiliated to VTU), Bangalore, 560054, Karnataka, India.
| | - Kalpana Sharma
- Department of Physics, M S Ramaiah Institute of Technology (Affiliated to VTU), Bangalore, 560054, Karnataka, India
| | - A Jagannatha Reddy
- Department of Physics, M S Ramaiah Institute of Technology (Affiliated to VTU), Bangalore, 560054, Karnataka, India
| | - V V Koppal
- Department of Physics, KLE Technological University, Hubli, 580031, Karnataka, India
| |
Collapse
|
2
|
Melavanki R, Kumar V, Singh D, Dhiman N, Koppal VV, Patil NR. Effect of Fluorescence Quenching model on Quinoline Derivative with Cobalt Chloride metal ion using steady state and time resolved spectroscopic methods. LUMINESCENCE 2022; 37:907-912. [PMID: 35322537 DOI: 10.1002/bio.4235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 11/08/2022]
Abstract
Quinoline derivative i.e. quinilone yellow with the scientific name [sodium 2-(2, 3-dihydro-1,3-dioxo-1H-inden-2-yl) quinoline-6,8-disulfonate] (SQDS) is analysed for fluorescence resonance energy transfer (FRET). Fluorescence quenching mechanism is studied by employing steady state and transient state spectroscopic measurements. Cobalt Chloride is used as quencher in the present study. Linearity was observed in Stern-Volmer plots for transient state as well as steady state. This was further attributed to a mechanism of collisional quenching. Efficiency in fluorescence quenching is observed as there is a correlation between quenching constants of both transient and steady state. A significant energy transfer is reported between metal ions and SQDS molecule, according to FRET theory. Characterization results are studied and analysed. Application in the field of non-linear optics are predicted for SQDS. With Kurtz and Perry powder technique, SHG (second harmonic generation) efficiency was measured using Q-switched mode locked Nd:YAG laser emitting 1064 nm the first time with this compound.
Collapse
Affiliation(s)
- Raveendra Melavanki
- Department of Physics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, India.,Autonomous, affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| | - Vijaya Kumar
- Department of Mathematics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, India.,Autonomous, affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| | - Diksha Singh
- Department of Physics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, India.,Autonomous, affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| | - Nishant Dhiman
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, Karnataka, India
| | - Varsha V Koppal
- Department of Physics, B V B College of Engineering and Technology, Hubli, Karnataka, India.,Autonomous, affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| | - N R Patil
- Department of Physics, B V B College of Engineering and Technology, Hubli, Karnataka, India.,Autonomous, affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, India
| |
Collapse
|
3
|
Ikram M, Hassan J, Raza A, Haider A, Naz S, Ul-Hamid A, Haider J, Shahzadi I, Qamar U, Ali S. Photocatalytic and bactericidal properties and molecular docking analysis of TiO 2 nanoparticles conjugated with Zr for environmental remediation. RSC Adv 2020; 10:30007-30024. [PMID: 35518250 PMCID: PMC9056309 DOI: 10.1039/d0ra05862a] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/07/2020] [Indexed: 01/04/2023] Open
Abstract
Despite implementing several methodologies including a combination of physical, chemical and biological techniques, aquatic and microbial pollution remains a challenge to this day. Recently, nanomaterials have attracted considerable attention due to their extraordinary prospective for utilization toward environmental remediation. Among several probable candidates, TiO2 stands out due to its potential for use in multifaceted applications. One way to improve the catalytic and antimicrobial potential of TiO2 is to dope it with certain elements. In this study, Zr-doped TiO2 was synthesized through a sol-gel chemical method using various dopant concentrations (2, 4, 6, and 8 wt%). Surface morphological, microstructural and elemental analysis was carried out using FESEM and HR-TEM along with EDS to confirm the formation of Zr-TiO2. XRD spectra showed a linear shift of the (101) anatase peak to lower diffraction angles (from 25.4° to 25.08°) with increasing Zr4+ concentration. Functional groups were examined via FTIR, an ample absorption band appearing between 400 and 700 cm-1 in the acquired spectrum was attributed to the vibration modes of the Ti-O-Ti linkage present within TiO2 nanoparticles, which denotes the formation of TiO2. Experimental results indicated that with increasing dopant concentrations, photocatalytic potential was enhanced significantly. In this respect, TiO2 doped with 8 wt% Zr (sample 0.08 : 1) exhibited outstanding performance by realizing 98% elimination of synthetic MB in 100 minutes. This is thought to be due to a decreased rate of electron-hole pair recombination that transpires upon doping. Therefore, it is proposed that Zr-doped TiO2 can be used as an effective photocatalyst material for various environmental and wastewater treatment applications. The good docking scores and binding confirmation of Zr-doped TiO2 suggested doped nanoparticles as a potential inhibitor against selected targets of both E. coli and S. aureus. Hence, enzyme inhibition studies of Zr-doped TiO2 NPs are suggested for further confirmation of these in silico predictions.
Collapse
Affiliation(s)
- M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore 54000 Punjab Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences Lahore 54000 Punjab Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab Lahore 54000 Pakistan
| | - U Qamar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| |
Collapse
|
4
|
Re-usage of the Waste Drug as Molecular Chemosensor for Fe 3+ Ion: Application towards Fluorescent Ink. J Fluoresc 2020; 30:1025-1033. [PMID: 32607735 DOI: 10.1007/s10895-020-02573-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/23/2020] [Indexed: 10/24/2022]
Abstract
Herein, a novel notion is used to reuse an expired drug namely Telmisartan (Sensor 2) to optically sense the Fe3+ metal ion. Direct re-usage of the drug avoided wearisome procedures of synthesis, hence proved the method as simple and economic. Sensor 2 found highly stable in the temperature range 25-75 °C. Relative fluorescence was almost the same even after 35 days of observation. There were no significant changes in wavelength even after adding different concentrations of FeCl3, which shows the high stability of the compound. The value of Limit of Detection (LOD) observed was 34.2 nM. FTIR studies confirmed the presence of carboxylic group. The method of fluorescence quenching was used to detect the Fe3+ ion. The association between Sensor 2 and Fe3+ was analyzed using Benesi-Hildebrand relation. Positive deviation from the linearity of S-V plots suggested that the quenching was not purely dynamic. Further, this deviation was analyzed by the sphere of action quenching model. To investigate whether the quenching is diffusion limited, we applied the finite sink approximation model and deduced that quenching is due to both static and dynamic processes. Due to the high fluorescence property of the molecule, it was successfully tested to be used as fluorescent ink.
Collapse
|
5
|
Wei K, Zhang L, Jiang SL, Zhang Q. Energy transfer and electron transfer in composite system of carbon quantum dots/rhodamine B molecules. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1905105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Kang Wei
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Lei Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Shen-long Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
6
|
Koppal V, Patil P, Melavanki RM, Kusanur RA, Afi UO, Patil N. Exploring the influence of silver nanoparticles on the mechanism of fluorescence quenching of coumarin dye using FRET. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
7
|
Desai VR, Hunagund SM, Basanagouda M, Kadadevarmath JS, Sidarai AH. Influence of concentrations of TiO2 nanoparticles on spectroscopic properties of a novel HMPP molecule. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.09.134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
8
|
Koppal V, Melavanki R, Kusanur R, Patil N. Understanding fluorescence resonance energy transfer between biologically active coumarin derivative and silver nanoparticles using steady state and time resolved spectroscopic methods. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
9
|
Effect of TiO2 nanoparticles on newly synthesized phenothiazine derivative-CPTA dye and its applications as dye sensitized solar cell. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.120] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
10
|
Sidarai AH, Desai VR, Hunagund SM, Basanagouda M, Kadadevarmath JS. Study of Fluorescence Quenching on Novel Coumarin Derivatives by Aniline in Different Solvents. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0645-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Desai VR, Hunagund SM, Basanagouda M, Kadadevarmath JS, Sidarai AH. Analysis of Fluorescence Quenching for Newly Synthesized Biologically Active 3(2H)-pyridazinone Derivative by Aniline. J Fluoresc 2017; 27:1839-1846. [PMID: 28567617 DOI: 10.1007/s10895-017-2121-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 05/24/2017] [Indexed: 11/25/2022]
Abstract
Herein, we have studied the analysis of fluorescence quenching for newly synthesized biologically active 3(2H)-pyridazinone derivative 5-(5-bromo-2-hydroxy-phenyl)-2-phenyl-2H-pyridazin-3-one [BHP] by various concentrations of aniline using UV-Visible spectroscopy, fluorescence spectroscopy and time-correlated single photon counting technique in five different solvents namely, methanol, ethanol, propan-2-ol, dimethylsulfoxide and ethyl acetate at room temperature. The fluorescence intensity of BHP molecule decrease with increasing in the aniline concentration and it is studied using the Stern-Volmer relation. The obtained Stern-Volmer plots were found to be linear in all the five solvents. The various parameters responsible for the fluorescence quenching such as quenching rate parameters (k q ), diffusion rate parameter (k d ) and the probability of quenching per encounter (p) were experimentally calculated in all five solvents. An activation energy of quenching (E a ) was calculated using the values of activation energy of diffusion (E d ) and p. It was found that the values of E a are greater than E d in all five solvents studied. Further, it is inferred that the fluorescence quenching reactions in BHP molecule are more significantly affected by activation energy processes.
Collapse
Affiliation(s)
- Vani R Desai
- Department of Studies in Physics, Karnatak University, Dharwad, Karnataka, 580003, India
| | | | - Mahantesha Basanagouda
- P. G. Department of Studies in Chemistry, K. L. E. Society's P. C. Jabin Science College, Hubli, Karnataka, 580031, India
| | | | - Ashok H Sidarai
- Department of Studies in Physics, Karnatak University, Dharwad, Karnataka, 580003, India.
| |
Collapse
|