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Malec D, Warszyńska M, Repetowski P, Siomchen A, Dąbrowski JM. Enhancing Visible-Light Photocatalysis with Pd(II) Porphyrin-Based TiO 2 Hybrid Nanomaterials: Preparation, Characterization, ROS Generation, and Photocatalytic Activity. Molecules 2023; 28:7819. [PMID: 38067548 PMCID: PMC10707769 DOI: 10.3390/molecules28237819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/24/2023] [Accepted: 11/26/2023] [Indexed: 04/07/2024] Open
Abstract
Novel hybrid TiO2-based materials were obtained by adsorption of two different porphyrins on the surface of nanoparticles-commercially available 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) and properly modified metalloporphyrin-5,10,15,20-tetrakis(2,6-difluoro-3-sulfophenyl)porphyrin palladium(II) (PdF2POH). The immobilization of porphyrins on the surface of TiO2 was possible due to the presence of sulfonyl groups. To further elevate the adsorption of porphyrin, an anchoring linker-4-hydroxybenzoic acid (PHBA)-was used. The synthesis of hybrid materials was proven by electronic absorption spectroscopy, dynamic light scattering (DLS), and photoelectrochemistry. Results prove the successful photosensitization of TiO2 to visible light by both porphyrins. However, the presence of the palladium ion in the modifier structure played a key role in strong adsorption, enhanced charge separation, and thus effective photosensitization. The incorporation of halogenated metalloporphyrins into TiO2 facilitates the enhancement of the comprehensive characteristics of the investigated materials and enables the evaluation of their performance under visible light. The effectiveness of reactive oxygen species (ROS) generation was also determined. Porphyrin-based materials with the addition of PHBA seemed to generate ROS more effectively than other composites. Interestingly, modifications influenced the generation of singlet oxygen for TPPS but not hydroxyl radical, in contrast to PdF2POH, where singlet oxygen generation was not influenced but hydroxyl radical generation was increased. Palladium (II) porphyrin-modified materials were characterized by higher photostability than TPPS-based nanostructures, as TPPS@PHBA-P25 materials showed the highest singlet oxygen generation and may be oxidized during light exposure. Photocatalytic activity tests with two model pollutants-methylene blue (MB) and the opioid drug tramadol (TRML)-confirmed the light dose-dependent degradation of those two compounds, especially PdF2POH@P25, which led to the virtually complete degradation of MB.
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Affiliation(s)
- Dawid Malec
- Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland; (D.M.); (M.W.); (P.R.); (A.S.)
| | - Marta Warszyńska
- Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland; (D.M.); (M.W.); (P.R.); (A.S.)
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, 30-348 Kraków, Poland
| | - Paweł Repetowski
- Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland; (D.M.); (M.W.); (P.R.); (A.S.)
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, 30-348 Kraków, Poland
| | - Anton Siomchen
- Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland; (D.M.); (M.W.); (P.R.); (A.S.)
| | - Janusz M. Dąbrowski
- Faculty of Chemistry, Jagiellonian University, 30-387 Kraków, Poland; (D.M.); (M.W.); (P.R.); (A.S.)
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New approaches for enhancing the photosensitivity, antibacterial activity, and controlled release behavior of non-porous silica-titania nanoplatforms. BIOMATERIALS ADVANCES 2023; 148:213365. [PMID: 36921460 DOI: 10.1016/j.bioadv.2023.213365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/13/2023] [Accepted: 02/26/2023] [Indexed: 03/05/2023]
Abstract
This research presents a new approach for the synthesis of inorganic nano-platforms containing >2 layers. Nano-platforms were characterized using scanning electron microscopy, X-ray diffraction, fluorescence and Fourier transform infrared spectroscopy, fluorescence microscopy, dynamic light scattering, thermogravimetric analysis, Brunauer-Emmett-Teller, etc. Since it has been reported that the maximum tolerable dose of non-porous silica nanoparticles (NPs) in in-vivo studies is higher than that of mesoporous silica, the non-porous silica was prepared. Curcumin (CUR) was trapped between the surfaces of the spherical non-porous silica and titania NPs (<100 nm) as both fluorescent and therapeutic agents, thus resulting in increased loading capacity of the non-porous silica NPs, as well as providing significant photosensitivity, antibacterial activity, and controlled release. In addition, the surface of NPs was enriched with Methyl violet-10B (MV-10B), and Rhodamine B (RhB). Silica@CUR@titania exhibited approximately 9-fold higher fluorescence intensity than silica@CUR NPs. This finding enabled us to design nano-platforms with minimum toxic effect due to low contents of RhB for bioimaging applications. The antimicrobial efficiency of nano-platforms was evaluated against P. aeruginosa, E. coli, S. typhimurium, K. pneumonia, S. epidermidis, S. aureus, B. subtilis, B. cereus, and E. faecalis. It was concluded that titania markedly lowered the minimum inhibitory concentration values (MICs) of CUR against all bacteria except B. subtilis and P. aeruginosa. Theoretical simulation was also performed to clarify the accumulation of functionalized NPs in tumor tissue.
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Gonzalez-Moya J, Chang CY, Radu DR, Lai CY. Photocatalytic Deposition of Nanostructured CsPbBr 3 Perovskite Quantum Dot Films on Mesoporous TiO 2 and Their Enhanced Visible-Light Photodegradation Properties. ACS OMEGA 2022; 7:26738-26748. [PMID: 35936483 PMCID: PMC9352250 DOI: 10.1021/acsomega.2c03089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Herein, we report the in situ photocatalytic deposition of cesium lead bromide (CsPbBr3) perovskite quantum dots on mesoporous TiO2-coated fluorine-doped tin oxide (FTO/TiO2) electrodes. The mesoporous TiO2 layer is used as a photocatalyst to promote the following: (1) the Pb deposition from a Pb2+ aqueous solution and (2) the in situ Pb conversion into CsPbBr3 perovskite in the presence of a CsBr methanolic solution without any organic capping agent. Both steps are carried out under ultraviolet light irradiation under ambient conditions without any post-treatment. The obtained FTO/TiO2/CsPbBr3 film was characterized by UV-vis diffuse reflectance spectroscopy, X-ray diffraction, photoluminescence spectroscopy, scanning electron microscopy, and transmission electron microscopy. The FTO/TiO2/CsPbBr3 heterojunction exhibited enhanced visible-light photodegradation activity demonstrated for the oxidation of curcumin organic dye as a model system. The novel and simple approach to fabricating a supported photocatalyst represents a scalable general method to use semiconductors as a platform to incorporate different perovskites, either all-inorganic or hybrid, for optoelectronic applications. The perovskite deposition method mediated by the UV light at room temperature could be further applied to flexible and wearable solar power electronics.
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Development of PVA/Chitosan-g-Poly (N-vinyl imidazole)/TiO2/curcumin nanofibers as high-performance wound dressing. Carbohydr Polym 2022; 296:119956. [DOI: 10.1016/j.carbpol.2022.119956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/28/2022] [Accepted: 08/02/2022] [Indexed: 12/29/2022]
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Xiao T, Chen Y, Liang Y. Visible light responsive metalloporphyrin-sensitized TiO2 nanotube arrays for artificial photosynthesis of methane. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00442e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photocatalyst composed of TiO2 nanotube arrays and a porphyrin (metalloporphyrin) was prepared. The improved photocatalytic performance for CO2 reduction is ascribed to the enhanced charge separation and light absorbance.
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Affiliation(s)
- Tongxin Xiao
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
- College of Chemistry & Chemical Engineering, Mudanjiang Normal University, Mudanjiang 157011, China
| | - Ying Chen
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
| | - Yuning Liang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
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Sethiya A, Agarwal DK, Agarwal S. Current Trends in Drug Delivery System of Curcumin and its Therapeutic Applications. Mini Rev Med Chem 2021; 20:1190-1232. [PMID: 32348221 DOI: 10.2174/1389557520666200429103647] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/30/2020] [Accepted: 04/09/2020] [Indexed: 02/07/2023]
Abstract
Curcumin is a poly phenolic compound extracted from turmeric. Over the past years, it has acquired significant interest among researchers due to its numerous pharmacological activities like anti- cancer, anti-alzheimer, anti-diabetic, anti-bacterial, anti-inflammatory and so on. However, the clinical use of curcumin is still obstructed due to tremendously poor bioavailability, rapid metabolism, lower gastrointestinal absorption, and low permeability through cell that makes its pharmacology thrilling. These issues have led to enormous surge of investigation to develop curcumin nano formulations which can overcome these restrictive causes. The scientists all across the universe are working on designing several drug delivery systems viz. liposomes, micelles, magnetic nano carriers, etc. for curcumin and its composites which not only improve its physiochemical properties but also enhanced its therapeutic applications. The review aims to systematically examine the treasure of information about the medicinal use of curcumin. This article delivers a general idea of the current study piloted to overwhelm the complications with the bioavailability of curcumin which have exhibited an enhanced biological activity than curcumin. This article explains the latest and detailed study of curcumin and its conjugates, its phytochemistry and biological perspectives and also proved curcumin as an efficient drug candidate for the treatment of numerous diseases. Recent advancements and futuristic viewpoints are also deliberated, which shall help researchers and foster commercial translations of improved nanosized curcumin combination for the treatment of various diseases.
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Affiliation(s)
- Ayushi Sethiya
- Department of Chemistry, Synthetic Organic Chemistry Laboratory, MLS University, Udaipur, 313001, India
| | | | - Shikha Agarwal
- Department of Chemistry, Synthetic Organic Chemistry Laboratory, MLS University, Udaipur, 313001, India
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Heo KJ, Jeong SB, Shin J, Hwang GB, Ko HS, Kim Y, Choi DY, Jung JH. Water-Repellent TiO 2-Organic Dye-Based Air Filters for Efficient Visible-Light-Activated Photochemical Inactivation against Bioaerosols. NANO LETTERS 2021; 21:1576-1583. [PMID: 33275432 DOI: 10.1021/acs.nanolett.0c03173] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Recently, bioaerosols, including the 2019 novel coronavirus, pose a serious threat to global public health. Herein, we introduce a visible-light-activated (VLA) antimicrobial air filter functionalized with titanium dioxide (TiO2)-crystal violet (CV) nanocomposites facilitating abandoned visible light from sunlight or indoor lights. The TiO2-CV based VLA antimicrobial air filters exhibit a potent inactivation rate of ∼99.98% and filtration efficiency of ∼99.9% against various bioaerosols. Under visible-light, the CV is involved in overall inactivation by inducing reactive oxygen species production both directly (CV itself) and indirectly (in combination with TiO2). Moreover, the susceptibility of the CV to humidity was significantly improved by forming a hydrophobic molecular layer on the TiO2 surface, highlighting its potential applicability in real environments such as exhaled or humid air. We believe this work can open a new avenue for designing and realizing practical antimicrobial technology using ubiquitous visible-light energy against the threat of infectious bioaerosols.
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Affiliation(s)
- Ki Joon Heo
- Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea
| | - Sang Bin Jeong
- Graduate School of Energy and Environment, Korea University, Seoul 02841, Republic of Korea
- Center for Environment, Health, and Welfare Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Juhun Shin
- Materials Chemistry Research Centre, Department of Chemistry, University College London, London, WC1H 0AJ, United Kingdom
| | - Gi Byoung Hwang
- Materials Chemistry Research Centre, Department of Chemistry, University College London, London, WC1H 0AJ, United Kingdom
| | - Hyun Sik Ko
- Aerosol and Particle Technology Laboratory, Department of Mechanical Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Yeonsang Kim
- Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea
| | - Dong Yun Choi
- Biomedical Manufacturing Technology Center, KITECH, Yeongcheon, 38822, Republic of Korea
| | - Jae Hee Jung
- Aerosol and Particle Technology Laboratory, Department of Mechanical Engineering, Sejong University, Seoul 05006, Republic of Korea
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Schmidt A, Heinrich B, Kirscher G, Chaumont A, Henry M, Kyritsakas N, Haketa Y, Maeda H, Mobian P. Dipyrrolyldiketonato Titanium(IV) Complexes from Monomeric to Multinuclear Architectures: Synthesis, Stability, and Liquid-Crystal Properties. Inorg Chem 2020; 59:12802-12816. [PMID: 32845621 DOI: 10.1021/acs.inorgchem.0c01846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dipyrrolyldiketone ligands (dpkH) are used with Ti(OiPr)4 to afford monomeric titanium(IV) complexes displaying the general formula C2-[Ti(dpk)2(OiPr)2]. The dpkH ligands employed consist of two dipyrrolyldiketone compounds (2H and 3H) and three diphenyl-substituted analogues (4H-6H). The behavior of these octahedral [Ti(dpk)2(OiPr)2] species in solution was investigated by 1H NMR at variable temperatures. Dynamic phenomena were evidenced, and the activation parameters associated with these processes (ΔH⧧, ΔS⧧, and ΔG⧧) were retrieved. [Ti(dpk)2(OiPr)2] complexes are precursors for the formation of high-nuclearity aggregates whose structures depend on the substituents on the diketone backbone. The crystal structures of monomeric ([Ti(1)2(OiPr)2]; 1 is the 1,3-diphenyl-1,3-propanedionato ligand) and [Ti(2)2(OEt)2]), dimeric ([Ti2(1)4(μ2-O)2]), and tetrameric ([Ti4(4)8(μ2-O)4]) species have been established, and the origin of this structural diversity is discussed. The solid-state optical properties of several complexes were determined and interpreted with the help of DFT calculations. Finally, the dinuclear complex [Ti(6)2(μ2-O)2] was synthesized, where ligand 6 incorporates six long alkyl chains (C16H33). This complex shows rich mesomorphic properties, with an original room-temperature plastic crystal phase followed by a hexagonal columnar liquid-crystalline phase.
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Affiliation(s)
- Alexandra Schmidt
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 UDS-CNRS, University of Strasbourg, 23 rue du Loess, F-67034 Strasbourg, France
| | - Guillaume Kirscher
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Alain Chaumont
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France.,Laboratoire de Modélisation et Simulations Moléculaires, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Nathalie Kyritsakas
- Laboratoire de Tectonique Moléculaire, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide, UMR 7140 UDS-CNRS, University of Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
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Curcumin Doped SiO2/TiO2 Nanocomposites for Enhanced Photocatalytic Reduction of Cr (VI) under Visible Light. Catalysts 2020. [DOI: 10.3390/catal10080942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In order to further improve the photocatalytic performance of the SiO2/TiO2 composite under visible light irradiation, curcumin-doped SiO2/TiO2 nanocomposites were synthesized via directly incorporating it into the structure of SiO2/TiO2 during the synthesis using an inexpensive and readily available natural pigment (curcumin) as doping agent. The physicochemical properties of SiO2/TiO2 nanocomposites were characterized in detail by X-ray diffraction, transmission electron microscopy, Fourier transform-infrared spectroscopy, N2 adsorption–desorption isotherms, X-ray photoelectron spectroscopy, and UV-vis diffuse reflectance spectroscopy. The results indicate that all SiO2/TiO2 nanocomposites exhibited an anatase phase with a typical mesoporous structure. It was found that the dope of curcumin in the SiO2/TiO2 composite could decrease the crystal size, slightly improve the specific surface areas, significantly enhance the visible light absorption, and effectively narrow the band gap energy from 3.04 to 10(eV). Compared with bare SiO2/TiO2, the curcumin-doped SiO2/TiO2 resulted in enhanced photocatalytic reduction activity for Cr(VI) under visible light irradiation, and the CTS (12) sample with the appropriate content of curcumin of 12 wt % shows the photocatalytic yield reaching 100% within 2.5 hours, which is larger than CT (12) without silica. This could be attributed to the curcumin doping and the synergetic effects of SiO2 and TiO2 in SiO2/TiO2 nanocomposites.
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Prasanna APS, Venkataprasanna KS, Pannerselvam B, Asokan V, Jeniffer RS, Venkatasubbu GD. Multifunctional ZnO/SiO 2 Core/Shell Nanoparticles for Bioimaging and Drug Delivery Application. J Fluoresc 2020; 30:1075-1083. [PMID: 32621092 DOI: 10.1007/s10895-020-02578-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/23/2020] [Indexed: 11/29/2022]
Abstract
Semiconducting nanoparticles with luminescent properties are used as detection probes and drug carriers in in-vitro and in-vivo analysis. ZnO nanoparticles, due to its biocompatibility and low cost, have shown potential application in bioimaging and drug delivery. Thus, ZnO/SiO2 core/shell nanoparticle was synthesised by wet chemical method for fluorescent probing and drug delivery application. The synthesised core/shell nanomaterial was characterized using XRD, FTIR, UV-VIS spectroscopy, Raman spectroscopy, TEM and PL analysis. The silicon shell enhances the photoluminescence and aqueous stability of the pure ZnO nanoparticles. The porous surface of the shell acts as a carrier for sustained release of curcumin. The synthesized core/shell particle shows high cell viability, hemocompatibility and promising florescent property. Graphical Abstract.
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Affiliation(s)
- A P S Prasanna
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Chengalpattu District, Tamil Nadu, 603 203, India
| | - K S Venkataprasanna
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Chengalpattu District, Tamil Nadu, 603 203, India
| | | | - Vijayshankar Asokan
- Department of Chemistry and Chemical Engineering, Chalmers University, Gothenburg, Sweden
| | - R Sofia Jeniffer
- Center of Nanotechnology Research (CNR), VIT University, Vellore, Tamilnadu, India
| | - G Devanand Venkatasubbu
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Chengalpattu District, Tamil Nadu, 603 203, India.
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Sharma S, Uttam R, Uttam K. Interaction of Chlorophyll with Titanium Dioxide and Iron Oxide Nanoparticles: A Temperature Dependent Fluorescence Quenching Study. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1721000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sweta Sharma
- Saha’s Spectroscopy Laboratory, Department of Physics, University of Allahabad, Allahabad, India
| | - Rahul Uttam
- Centre of Material Science, IIDS, University of Allahabad, Allahabad, India
| | - K.N. Uttam
- Saha’s Spectroscopy Laboratory, Department of Physics, University of Allahabad, Allahabad, India
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Suba V, Saravanabhavan M, Krishna LS, Kaleemulla S, Ranjith Kumar E, Rathika G. Evaluation of curcumin assistance in the antimicrobial and photocatalytic activity of a carbon based TiO2nanocomposite. NEW J CHEM 2020. [DOI: 10.1039/d0nj02346a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study focuses on the synthesis of visible light active curcumin supported TiO2/AC (curcumin–TiO2/AC) through sol–gel and wet impregnation methods for the decolourization of Reactive Blue 160.
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Affiliation(s)
- V. Suba
- Department of Chemistry
- P. S. G. College of Arts and Science
- Coimbatore-641014
- India
| | - M. Saravanabhavan
- Department of Chemistry
- Sri Ramakrishna Mission Vidhyalaya College of Arts and Science
- Coimbatore-641020
- India
| | | | - Shaik Kaleemulla
- Department of Physics
- Vellore Institute of Technology
- Vellore-63201
- India
| | - E. Ranjith Kumar
- Department of Physics
- KPR Institute of Engineering and Technology
- Coimbatore-641407
- India
| | - G. Rathika
- Department of Chemistry
- P. S. G. College of Arts and Science
- Coimbatore-641014
- India
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Kumar S, Pal S, Kuntail J, Kumar De A, Sinha I. Construction of a Visible Light Z‐scheme Photocatalyst: Curcumin Functionalized Cu
2
O/Ag Nanocomposites. ChemistrySelect 2019. [DOI: 10.1002/slct.201902612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sunil Kumar
- Department of ChemistryIndian Institute of TechnologyBanaras Hindu University) Varanasi 221005 India
| | - Shaili Pal
- Department of ChemistryIndian Institute of TechnologyBanaras Hindu University) Varanasi 221005 India
| | - Jyoti Kuntail
- Department of ChemistryIndian Institute of TechnologyBanaras Hindu University) Varanasi 221005 India
| | - Arup Kumar De
- Department of ChemistryIndian Institute of TechnologyBanaras Hindu University) Varanasi 221005 India
| | - Indrajit Sinha
- Department of ChemistryIndian Institute of TechnologyBanaras Hindu University) Varanasi 221005 India
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14
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Victorious A, Saha S, Pandey R, Didar TF, Soleymani L. Affinity-Based Detection of Biomolecules Using Photo-Electrochemical Readout. Front Chem 2019; 7:617. [PMID: 31572709 PMCID: PMC6749010 DOI: 10.3389/fchem.2019.00617] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/26/2019] [Indexed: 11/22/2022] Open
Abstract
Detection and quantification of biologically-relevant analytes using handheld platforms are important for point-of-care diagnostics, real-time health monitoring, and treatment monitoring. Among the various signal transduction methods used in portable biosensors, photoelectrochemcial (PEC) readout has emerged as a promising approach due to its low limit-of-detection and high sensitivity. For this readout method to be applicable to analyzing native samples, performance requirements beyond sensitivity such as specificity, stability, and ease of operation are critical. These performance requirements are governed by the properties of the photoactive materials and signal transduction mechanisms that are used in PEC biosensing. In this review, we categorize PEC biosensors into five areas based on their signal transduction strategy: (a) introduction of photoactive species, (b) generation of electron/hole donors, (c) use of steric hinderance, (d) in situ induction of light, and (e) resonance energy transfer. We discuss the combination of strengths and weaknesses that these signal transduction systems and their material building blocks offer by reviewing the recent progress in this area. Developing the appropriate PEC biosensor starts with defining the application case followed by choosing the materials and signal transduction strategies that meet the application-based specifications.
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Affiliation(s)
- Amanda Victorious
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
| | - Sudip Saha
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
| | - Richa Pandey
- Department of Engineering Physics, McMaster University, Hamilton, ON, Canada
| | - Tohid F. Didar
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
- Department of Mechanical Engineering, McMaster University, Hamilton, ON, Canada
| | - Leyla Soleymani
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
- Department of Engineering Physics, McMaster University, Hamilton, ON, Canada
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15
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Niranjan R, Kaushik M, Selvi RT, Prakash J, Venkataprasanna KS, Prema D, Pannerselvam B, Venkatasubbu GD. PVA/SA/TiO 2-CUR patch for enhanced wound healing application: In vitro and in vivo analysis. Int J Biol Macromol 2019; 138:704-717. [PMID: 31344412 DOI: 10.1016/j.ijbiomac.2019.07.125] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/04/2019] [Accepted: 07/21/2019] [Indexed: 12/15/2022]
Abstract
Wound healing is a complex multistep process. Wound healing materials should have good antibacterial activity against wound infection causing microbes. Curcumin has effective antimicrobial activity, anti-inflammatory and antioxidant property. Titanium dioxide (TiO2) is a biocompatible, nontoxic material used for many biomedical applications. The Usage of curcumin tagged TiO2 nanoparticles for wound healing activity is promising due to the properties of both curcumin and TiO2. We have synthesized curcumin tagged TiO2 nanoparticles. The synthesized materials are characterized with XRD, FTIR and TEM. TiO2-Cur nanocomposite was incorporated into poly vinyl alcohol (PVA) and sodium alginate (SA) patch. The PVA/SA/TiO2-Cur patch was prepared by gel casting method. Antibacterial efficiency of PVA/SA/TiO2-Cur patch was analyzed. Further, in vivo studies conducted on Wister rats confirmed the enhanced wound healing property of the PVA/SA/TiO2-Cur patch. Our results suggest that this could be an ideal biomaterial for wound dressing applications.
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Affiliation(s)
- R Niranjan
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, India
| | - M Kaushik
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, India
| | - R Thamarai Selvi
- Department of Physics, SRM Institute of Science and Technology, Tamil Nadu, India
| | - J Prakash
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, India
| | - K S Venkataprasanna
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, India
| | - D Prema
- Department of Nanotechnology, SRM Institute of Science and Technology, Tamil Nadu, India
| | - Balashanmugam Pannerselvam
- Centre for Human & Organizational Resources Development (CHORD), CSIR- Central Leather Research Institute, Chennai, Tamil Nadu, India
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16
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Zhao H, Kang J, Nan H, Yang G, Wei H, Chen H, Wang G, Lin H. Preparation and Enhanced UV-Visible Light Photoelectrocatalytic Activity of TiO 2
-Fe 2
O 3
/Cu Ternary Nanocomposites. ChemistrySelect 2019. [DOI: 10.1002/slct.201803345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hexi Zhao
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Jie Kang
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Hui Nan
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Guijun Yang
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Haomin Wei
- Qinghai Provincial Key Laboratory of New Light Alloys; Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming; Qinghai University; Xining 810016 China
| | - Huiyuan Chen
- School of Chemistry and Chemical Engineering; Qinghai University; Xining 810016 China
| | - Gang Wang
- School of Chemistry and Chemical Engineering; Qinghai Nationalities University; Xining 810007 China
| | - Hong Lin
- State Key Laboratory of New Ceramics & Fine Processing; School of Materials Science and Engineering; Tsinghua University; Beijing 100084 China
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17
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Kawase Y, Isaka Y, Kuwahara Y, Mori K, Yamashita H. Ti cluster-alkylated hydrophobic MOFs for photocatalytic production of hydrogen peroxide in two-phase systems. Chem Commun (Camb) 2019; 55:6743-6746. [PMID: 31119233 DOI: 10.1039/c9cc02380a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydrophobic MOF, OPA/MIL-125-NH2, whose Ti cluster was alkylated with octadecylphosphonic acid (OPA), was found to enhance photocatalytic H2O2 production in a two-phase system. Its activity exceeded that of linker-alkylated MIL-125-NH2. OPA/MIL-125-NH2 was modified on its outermost surface, which resulted in the activity enhancement while preserving the inner pores of the inherent MOF.
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Affiliation(s)
- Yudai Kawase
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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18
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Kumar S, Verma A, Pal S, Sinha I. Curcumin-Functionalized Ag/Ag 2 O Nanocomposites: Efficient Visible-Light Z-scheme Photocatalysts. Photochem Photobiol 2018; 94:641-649. [PMID: 29438581 DOI: 10.1111/php.12910] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/29/2017] [Indexed: 11/27/2022]
Abstract
Curcumin-functionalized Ag/Ag2 O (c-Ag/Ag2 O) nanocomposites with varying proportions of curcumin and Ag/Ag2 O were prepared by a simple one pot green synthesis protocol in aqueous medium. The plasmonic band undergoes slight redshift, broadening and decrease in intensity with increase in the proportion of Ag2 O formed. These composite nanoparticles were found to be efficient visible-light photocatalysts for aerobic oxidation of methyl orange and rhodamine B (RhB). Functionalization by curcumin significantly enhanced the photocatalytic activity with good reusability. The photocatalytic oxidation rate showed super linear increase with light intensity because of localized surface plasmon resonance (LSPR)-induced strong near field. The trapping experiments confirmed that superoxide radicals were the main active species responsible for the degradation reaction. A plasmonic Z-scheme photocatalytic mechanism is proposed to explain the possible charge transfer and separation behavior of electron-hole pairs among Ag, Ag2 O and curcumin under visible-light irradiation.
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Affiliation(s)
- Sunil Kumar
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Alkadevi Verma
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Shaili Pal
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Indrajit Sinha
- Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
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19
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Fan H, Chen D, Ai X, Han S, Wei M, Yang L, Liu H, Yang J. Mesoporous TiO 2 coated ZnFe 2O 4 nanocomposite loading on activated fly ash cenosphere for visible light photocatalysis. RSC Adv 2018; 8:1398-1406. [PMID: 35540899 PMCID: PMC9077129 DOI: 10.1039/c7ra11055c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 12/18/2017] [Indexed: 11/23/2022] Open
Abstract
Several activated fly ash cenosphere (AFAC) supporting TiO2 coated ZnFe2O4 (TiO2/ZnFe2O4/AFAC) photocatalysts were prepared by sol-gel and hydrothermal methods. These photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), UV-vis diffuse reflectance spectroscopy (UV-DRS) and nitrogen adsorption analyses for Brunauer-Emmett-Teller (BET) specific surface area measurements. We found that the main components of spherical AFAC were mullite (Al6Si2O13) and SiO2; the crystallite size of the TiO2/ZnFe2O4 nanocomposite was less than 10 nm and its specific surface area was 162.18 m2 g-1. The TiO2/ZnFe2O4 nanocomposite had a band-gap of 2.56 eV, which would photodegrade 95% of rhodamine B (RhB) under visible light within 75 min. When hybridized with 0.02 g AFAC, the TiO2/ZnFe2O4/0.02 g AFAC photocatalyst with a band-gap of 2.50 eV could remove 97.1% of RhB and be reused three consecutive times with minor decrease in photocatalytic performance. However, the photocatalytic performance decreased to 91.0% on increasing the dosage of AFAC to 0.30 g. The mesoporous structure of all the photocatalysts and the strong adsorption ability of AFAC accounted for the notable performance.
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Affiliation(s)
- Hougang Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University Siping 136000 PR China
- College of Physics, Jilin Normal University Siping 136000 PR China
| | - Dandan Chen
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
| | - Xuefeng Ai
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
| | - Shuo Han
- College of Physics, Jilin Normal University Siping 136000 PR China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University Siping 136000 PR China
- College of Physics, Jilin Normal University Siping 136000 PR China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University Siping 136000 PR China
- College of Physics, Jilin Normal University Siping 136000 PR China
| | - Huilian Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University Siping 136000 PR China
- College of Physics, Jilin Normal University Siping 136000 PR China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University Changchun 130103 PR China
- National Demonstration Center for Experimental Physics Education, Jilin Normal University Siping 136000 PR China
- College of Physics, Jilin Normal University Siping 136000 PR China
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20
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Wang F, Gong J, Ren Y, Zhang J. Eco-dyeing with biocolourant based on natural compounds. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171134. [PMID: 29410827 PMCID: PMC5792904 DOI: 10.1098/rsos.171134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/15/2017] [Indexed: 06/08/2023]
Abstract
Biomass pigments have been regarded as promising alternatives to conventional synthetic dyestuffs for the development of sustainable and clean dyeing. This investigation focused on in situ dyeing of fabrics with biopigments derived from tea polyphenols via non-enzymatic browning reaction. The average particle size of dyed residual liquor with natural tea polyphenol was 717.0 nm (ranging from 615.5 to 811.2 nm), and the Integ value of dyed wool fabrics was the greatest compared to those of counterparts. In addition, the Integ values of dyed fabrics with residual liquor were much bigger than those with the first reaction solutions when dyed by identical dyeing liquor. As a result, the dyeing process could be carried out many times because the concentration of the residual liquor was relatively superior. All dyed fabrics acquired admirable rubbing as well as washing fastness, and the relevant dyeing mechanism has been analysed in the paper.
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Affiliation(s)
- Fubang Wang
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
- Key Laboratory for Advanced Textile Composites of the Education Ministry of China, Tianjin 300387, People's Republic of China
| | - Jixian Gong
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
- Key Laboratory for Advanced Textile Composites of the Education Ministry of China, Tianjin 300387, People's Republic of China
| | - Yanfei Ren
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
- Key Laboratory for Advanced Textile Composites of the Education Ministry of China, Tianjin 300387, People's Republic of China
| | - Jianfei Zhang
- School of Textiles, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
- Key Laboratory for Advanced Textile Composites of the Education Ministry of China, Tianjin 300387, People's Republic of China
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