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Huang H, Zheng Y, Chang M, Song J, Xia L, Wu C, Jia W, Ren H, Feng W, Chen Y. Ultrasound-Based Micro-/Nanosystems for Biomedical Applications. Chem Rev 2024; 124:8307-8472. [PMID: 38924776 DOI: 10.1021/acs.chemrev.4c00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Due to the intrinsic non-invasive nature, cost-effectiveness, high safety, and real-time capabilities, besides diagnostic imaging, ultrasound as a typical mechanical wave has been extensively developed as a physical tool for versatile biomedical applications. Especially, the prosperity of nanotechnology and nanomedicine invigorates the landscape of ultrasound-based medicine. The unprecedented surge in research enthusiasm and dedicated efforts have led to a mass of multifunctional micro-/nanosystems being applied in ultrasound biomedicine, facilitating precise diagnosis, effective treatment, and personalized theranostics. The effective deployment of versatile ultrasound-based micro-/nanosystems in biomedical applications is rooted in a profound understanding of the relationship among composition, structure, property, bioactivity, application, and performance. In this comprehensive review, we elaborate on the general principles regarding the design, synthesis, functionalization, and optimization of ultrasound-based micro-/nanosystems for abundant biomedical applications. In particular, recent advancements in ultrasound-based micro-/nanosystems for diagnostic imaging are meticulously summarized. Furthermore, we systematically elucidate state-of-the-art studies concerning recent progress in ultrasound-based micro-/nanosystems for therapeutic applications targeting various pathological abnormalities including cancer, bacterial infection, brain diseases, cardiovascular diseases, and metabolic diseases. Finally, we conclude and provide an outlook on this research field with an in-depth discussion of the challenges faced and future developments for further extensive clinical translation and application.
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Affiliation(s)
- Hui Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yi Zheng
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P. R. China
| | - Meiqi Chang
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, P. R. China
| | - Jun Song
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Lili Xia
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Chenyao Wu
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Wencong Jia
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Hongze Ren
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Wei Feng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yu Chen
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
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2
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Jia W, Wang H, Wu Q, Sun L, Si Q, Zhao Q, Wu Y, Ren N, Guo W. Insight into Chinese medicine residue biochar combined with ultrasound for persulfate activation in atrazine degradation: Acanthopanax senticosus precursors, synergistic effects and toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163054. [PMID: 36963691 DOI: 10.1016/j.scitotenv.2023.163054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 05/27/2023]
Abstract
The synergistic activation of persulfate by multiple factors could degrade pollutants more efficiently. However, the co-activation method based on metal ions has the risk of leakage. The non-metallic coupling method could achieve the same efficiency as the metal activation and meanwhile release environmental stress. In this study, the original biochar (BC) was prepared through using Chinese medicinal residue of Acanthopanax senticosus as the precursor. Compared with other biochar, the pore size structure was higher and toxicity risk was lower. The ultrasonic (US)/Acanthopanax senticosus biochar (ASBC)/persulfate oxidation system was established for Atrazine (ATZ). Results showed that 45KHz in middle and low frequency band cooperated with ASBC600 to degrade nearly 70 % of ATZ within 50 min, and US promoted the formation of SO4- and OH. Meanwhile, the synergy index of US and ASBC was calculated to be 1.18, which showed positive synergistic effect. Finally, the potential toxicity was examined by using Toxicity Characteristic Leaching Procedure (TCLP) and luminescent bacteria. This study provides a promising way for the activation of persulfate, which is expected to bring a new idea for the win-win situation of pollutant degradation and solid waste resource utilization.
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Affiliation(s)
- Wenrui Jia
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Huazhe Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qinglian Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Lushi Sun
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Qishi Si
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qi Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Yaohua Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Wanqian Guo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China.
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3
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Yang SR, Wang R, Yan CJ, Lin YY, Yeh YJ, Yeh YY, Yeh YC. Ultrasonic interfacial crosslinking of TiO 2-based nanocomposite hydrogels through thiol-norbornene reactions for sonodynamic antibacterial treatment. Biomater Sci 2023. [PMID: 37128891 DOI: 10.1039/d2bm01950g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Nanocomposite (NC) hydrogels used for sonodynamic therapy (SDT) face challenges such as lacking interfacial interactions between the polymers and nanomaterials as well as presenting uneven dispersion of nanomaterials in the hydrogel network, reducing their mechanical properties and treatment efficiency. Here, we demonstrate a promising approach of co-engineering nanomaterials and interfacial crosslinking to expand the materials construction and biomedical applications of NC hydrogels in SDT. In this work, mesoporous silica-coated titanium dioxide nanoparticles with thiolated surface functionalization (TiO2@MS-SH) are utilized as crosslinkers to react with norbornene-functionalized dextran (Nor-Dex) through ultrasound-triggered thiol-norbornene reactions, forming TiO2@MS-SH/Nor-Dex NC hydrogels. The TiO2@MS-SH nanoparticles act not only as multivalent crosslinkers to improve the mechanical properties of hydrogels under ultrasound irradiation but also as reactive oxygen species (ROS) generators to allow the use of TiO2@MS-SH/Nor-Dex NC hydrogels in SDT applications. Particularly, the TiO2@MS-SH/Nor-Dex NC hydrogels present tailorable microstructures, properties, and sonodynamic killing of bacteria through the modulation of the ultrasound frequency. Taken together, a versatile TiO2-based NC hydrogel platform prepared under ultrasonic interfacial crosslinking reactions is developed for advancing the applications in SDT.
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Affiliation(s)
- Su-Rung Yang
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Reuben Wang
- Institute of Food Safety and Health, National Taiwan University, Taipei, Taiwan
- Master of Public Health Program, National Taiwan University, Taipei, Taiwan
- GIP-TRIAD Master's Degree in Agro-Biomedical Science, National Taiwan University, Taipei, Taiwan
| | - Chen-Jie Yan
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Yi-Yun Lin
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Yu-Jia Yeh
- Institute of Food Safety and Health, National Taiwan University, Taipei, Taiwan
| | - Ying-Yu Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan.
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4
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Gil-Londoño J, Krambrock K, de Oliveira R, Cremona M, Maia da Costa MEH, Marinkovic BA. Extrinsic Point Defects in TiO 2-Acetylacetone Charge-Transfer Complex and Their Effects on Optical and Photochemical Properties. Inorg Chem 2023; 62:2273-2288. [PMID: 36700852 DOI: 10.1021/acs.inorgchem.2c04016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
TiO2-based visible-light-sensitive nanomaterials are widely studied for photocatalytic applications under UV-Vis radiation. Among the mechanisms of visible-light sensitization, extrinsic oxygen vacancies have been introduced into TiO2 and charge-transfer complexes (CTCs) have been formed between chelating ligands, such as acetylacetone, and nanocrystalline TiO2 (TiO2-ACAC). However, the influence of extrinsic oxygen vacancies on the photocatalytic performance of TiO2-based CTCs is unknown. In this work, surface/bulk extrinsic oxygen vacancies were introduced into TiO2-ACAC through calcination at 270 °C under static air, argon, and hydrogen atmospheres. TiO2-ACAC CTCs were characterized by X-ray powder diffraction, thermogravimetric analysis, diffuse-reflectance spectroscopy, photoluminescence, electron paramagnetic resonance (EPR), and X-ray photoelectron spectroscopy techniques. The correlation between EPR-spin trapping and tetracycline (TC) photodegradation, using scavengers, highlighted the key role of the superoxide radical in TC degradation by TiO2-ACAC CTCs under low-power visible-light radiation. The increased extrinsic oxygen vacancies concentration was not beneficial for the photocatalytic performance of TiO2 CTCs, since bulk extrinsic oxygen vacancies additionally act as recombination centers. In fact, the TiO2-ACAC CTC with the lowest extrinsic oxygen vacancies concentration exhibited the highest photocatalytic performance for TC degradation due to an adequate distribution of extrinsic bulk oxygen vacancies, which led to the trapped electrons undergoing repeated hopping, reducing the recombination rates and improving the efficiency in superoxide radicals production. Our findings indicated that TiO2-ACAC CTCs are able to degrade pollutants via interactions with electronic holes and principally superoxide radicals and also, provided fundamental information about the influence of surface/bulk extrinsic oxygen vacancies on the photocatalytic performance, lattice parameters, and optical and photochemical properties of TiO2-based CTCs.
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Affiliation(s)
- Jessica Gil-Londoño
- Department of Chemical and Materials Engineering, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro22453-900, Brazil
| | - Klaus Krambrock
- Department of Physics, Federal University of Minas Gerais, Belo Horizonte31270-901, Brazil
| | - Raphaela de Oliveira
- Department of Physics, Federal University of Minas Gerais, Belo Horizonte31270-901, Brazil
| | - Marco Cremona
- Department of Physics, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro22453-900, Brazil
| | - Marcelo E H Maia da Costa
- Department of Physics, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro22453-900, Brazil
| | - Bojan A Marinkovic
- Department of Chemical and Materials Engineering, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro22453-900, Brazil
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5
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Multifunctional hemoporfin-Cu9S8-MnO2 for magnetic resonance imaging-guided catalytically-assisted photothermal-sonodynamic therapies. J Colloid Interface Sci 2022; 626:77-88. [DOI: 10.1016/j.jcis.2022.06.116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 12/07/2022]
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6
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Victória HFV, Ferreira DC, Filho JBG, Martins DCS, Pinheiro MVB, Sáfar GDAM, Krambrock K. Detection of singlet oxygen by EPR: The instability of the nitroxyl radicals. Free Radic Biol Med 2022; 180:143-152. [PMID: 34979255 DOI: 10.1016/j.freeradbiomed.2021.12.303] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/23/2022]
Abstract
The use of spin traps and redox probes coupled with electron paramagnetic resonance (EPR) is a method frequently applied in the evaluation of the efficiency of photosensitizers and photocatalysts in phototherapeutic and photocatalytic processes that involve reactive oxygen species. In this way, the method helps to clarify the mechanism behind photo-induced reactions. Hydroxy-TEMP is a very specific redox probe for selectively identifying and quantifying singlet oxygen (1O2). In this work, the kinetics of radical generated by the oxidation products of the Hydroxy-TEMP redox probe was analyzed from EPR spectra in aqueous solutions of several water-soluble porphyrins ([H2T4MPyP](OTs)4, Na4[H2T4SPP], [H2T2MPyP](OTs)4, [ZnT4MyPyP](OTs)4, [MnT4MyPyP](OTs)5, H2T4CPP, and [H2T4TriMAPP](OTs)4) under white light illumination. Different factors such as the concentration of the redox probe, pH of the medium, and photostability of the porphyrins were evaluated. A systematic study was carried out to reveal the factors associated with stable radical degradation (TEMPOL) by illumination in the visible spectral region in systems containing photosensitizer (porphyrin) and redox probe (Hydroxy-TEMP). With the aid of EPR and gas chromatography coupled with mass spectroscopy (GC-MS) techniques, the mechanism of the radical degradation and the photobleaching of porphyrins were investigated. After successive interactions with the porphyrin in its excited state, in alkaline aqueous solution (pH > 10), the free radical TEMPOL is transformed into TEMPONE until the final diamagnetic product Phorone. A protocol was elaborated to identify and quantify the generation of 1O2 by Hydroxy-TEMP reliably, to avoid possible errors in the interpretation of efficiency of photosensitizers.
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Affiliation(s)
- Henrique F V Victória
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
| | - Daniele C Ferreira
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - José B G Filho
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Dayse C S Martins
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Maurício V B Pinheiro
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Gustavo de A M Sáfar
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Klaus Krambrock
- Departamento de Física, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
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7
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Bimová P, Barbieriková Z, Grenčíková A, Šípoš R, Škulcová AB, Krivjanská A, Mackuľak T. Environmental risk of nanomaterials and nanoparticles and EPR technique as an effective tool to study them-a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22203-22220. [PMID: 33733403 DOI: 10.1007/s11356-021-13270-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Nanotechnologies and different types of nanomaterials belong in present day to intensively studied materials due to their unique properties and diverse potential applications in, e.g., electronics, medicine, or display technologies. Together with the investigation of their desired beneficial properties, a need to investigate and evaluate their influence on the environment and possible harmful effects towards living organisms is growing. This review summarizes possible toxic effects of nanomaterials on environment and living organisms, focusing on the possible bioaccumulation in organisms, toxicity, and its mechanisms. The main goal of this review is to refer to potential environmental risks rising from the use of nanomaterials and the necessity to deal with the possible toxic effects considering the growing interest in the wide-scale utilization of these materials. Electron paramagnetic resonance spectroscopy as the only analytical technique capable of detecting radical species enables detection, quantification, and monitoring of the generation of short-lived radicals often coupled with toxic effects of nanomaterials, which makes it an important method in the process of nanotoxicity mechanism determination.
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Affiliation(s)
- Paula Bimová
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
| | - Zuzana Barbieriková
- Department of Physical Chemistry, Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Anna Grenčíková
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Rastislav Šípoš
- Department of Inorganic Chemistry, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Andrea Butor Škulcová
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Anna Krivjanská
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Tomáš Mackuľak
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
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8
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Wen M, Shen J, Wang Z, Guo H, Geng P, Yu N, Li M, Zhang H, Zhu M, Chen Z. A cascaded enzyme-loaded Fe-hemoporfin framework for synergistic sonodynamic-starvation therapy of tumors. NANOSCALE 2021; 13:5910-5920. [PMID: 33725055 DOI: 10.1039/d0nr08508a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Enzyme-loaded nanosystems with multimodal therapeutic functions have received increasing attention in the treatment of malignant tumors. Herein, we designed and prepared cascaded dual-enzyme-augmented Fe-hemoporfin framework nanosonosensitizers for synergistic sonodynamic-starvation therapy of tumors. Amorphous Fe-hemoporfin frameworks (FeHF) with an average size of ∼85 nm were synthesized by assembling the clinical drug hemoporfin with Fe3+ ions. Then, FeHF was used to load dual enzymes (glucose oxidase (GOx) and catalase (CAT)) and modified by PEGylated folic acid-conjugated lipids. The dual-enzyme loaded FeHF (FeHF-GOx/CAT) exhibited higher efficiency not only for glucose depletion but also for ultrasound (US)-triggered 1O2 generation than that of pure FeHF, resulting from the cascaded catalytic reaction from the dual-enzyme system. As observed by magnetic resonance imaging, the intravenously injected FeHF-GOx/CAT was accumulated within tumors. The FeHF-GOx/CAT + US exhibited the highest inhibition effect compared to the FeHF-CAT + US (only SDT) or FeHF-GOx/CAT (only starvation therapy), due to the synergistic effects of SDT and starvation therapy. Therefore, the cascaded dual-enzyme loading strategy can increase the SDT efficiency of FeHF, which may guide further works in the development of efficient nanosonosensitizers.
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Affiliation(s)
- Mei Wen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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Um W, E. K. PK, Lee J, Kim CH, You DG, Park JH. Recent advances in nanomaterial-based augmented sonodynamic therapy of cancer. Chem Commun (Camb) 2021; 57:2854-2866. [DOI: 10.1039/d0cc07750j] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review focuses on recent advances in augmented sonodynamic therapy (SDT) using engineered nanomaterials, and the mechanism of SDT for discussing future perspectives.
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Affiliation(s)
- Wooram Um
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Pramod Kumar E. K.
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jeongjin Lee
- Department of Health Sciences and Technology
- SAIHST
- Sungkyunkwan University
- Seoul
- Republic of Korea
| | - Chan Ho Kim
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Dong Gil You
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering
- College of Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
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10
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Huang X, Deng X, Su K, Qi W. Enhanced electrochemiluminescence of Au–Ag bimetallic nanocluster@CNTs–TiO 2 nanocomposite and its use in ultra-sensitive immunosensing for CEA. NEW J CHEM 2021. [DOI: 10.1039/d1nj01409a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly efficient electrochemiluminescence (ECL) of novel Au–Ag bimetallic nanocluster@CNTs–TiO2 nanocomposites (Au–Ag NCs@CNTs–TiO2 NPs) with a unique “pearl necklace” structure is realized and applied as ECL immunosensor for cancer embryo antigen (CEA).
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Affiliation(s)
- Xiaomei Huang
- Department of Chemistry and Chemical Engineering
- Sichuan University of Arts and Science
- Dazhou
- P. R. China
- Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province
| | - Xiang Deng
- Department of Chemistry and Chemical Engineering
- Sichuan University of Arts and Science
- Dazhou
- P. R. China
- Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province
| | - Ke Su
- Department of Chemistry and Chemical Engineering
- Sichuan University of Arts and Science
- Dazhou
- P. R. China
| | - Wenjing Qi
- Chongqing Key Laboratory of Green Synthesis and Applications
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- P. R. China
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11
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Wang Y, Duan X, Xie Y, Sun H, Wang S. Nanocarbon-Based Catalytic Ozonation for Aqueous Oxidation: Engineering Defects for Active Sites and Tunable Reaction Pathways. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04232] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yuxian Wang
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Xiaoguang Duan
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Yongbing Xie
- Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hongqi Sun
- School of Engineering, Edith Cowan University, Joondalup, Western Australia 6027, Australia
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, South Australia 5005, Australia
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12
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Liang S, Deng X, Ma P, Cheng Z, Lin J. Recent Advances in Nanomaterial-Assisted Combinational Sonodynamic Cancer Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003214. [PMID: 33064322 DOI: 10.1002/adma.202003214] [Citation(s) in RCA: 249] [Impact Index Per Article: 62.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/13/2020] [Indexed: 05/18/2023]
Abstract
Ultrasound (US)-triggered sonodynamic therapy (SDT), as a promising noninvasive therapeutic modality, has received ever-increasing attention in recent years. Its specialized chemical agents, named sonosensitizers, are activated by low-intensity US to produce lethal reactive oxygen species (ROS) for oncotherapy. Compared with phototherapeutic strategies, SDT provides many noteworthy opportunities and benefits, such as deeper penetration depth, absence of phototoxicity, and fewer side effects. Nevertheless, previous studies have also demonstrated its intrinsic limitations. Thanks to the facile engineering nature of nanotechnology, numerous novel nanoplatforms are being applied in this emerging field to tackle these intrinsic barriers and achieve continuous innovations. In particular, the combination of SDT with other treatment strategies has demonstrated a superior efficacy in improving anticancer activity relative to that of monotherapies alone. Therefore, it is necessary to summarize the nanomaterial-assisted combinational sonodynamic cancer therapy applications. Herein, the design principles in achieving synergistic therapeutic effects based on nanomaterial engineering methods are highlighted. The ultimate goals are to stimulate the design of better-quality combined sonodynamic treatment schemes and provide innovative ideas for the perspectives of SDT in promoting its future transformation to clinical application.
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Affiliation(s)
- Shuang Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Xiaoran Deng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Ping'an Ma
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Ziyong Cheng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
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13
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Behzadpour N, Ranjbar A, Azarpira N, Sattarahmady N. Development of a Composite of Polypyrrole-Coated Carbon Nanotubes as a Sonosensitizer for Treatment of Melanoma Cancer Under Multi-Step Ultrasound Irradiation. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2322-2334. [PMID: 32522457 DOI: 10.1016/j.ultrasmedbio.2020.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 04/25/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Sonodynamic therapy (SDT) has established a novel route for treating solid cancers. Low-intensity ultrasound irradiation accompanied by a sonosensitizer has revealed remarkable advantages for cancer therapy such as targeted uptake, access to deeper tumors, insignificant side effects and invasiveness, compared with other therapeutic methods. In this study, we scrutinized synthesis and characterization of a polypyrrole-coated multi-walled carbon nanotubes composite (PPy@MWCNTs). PPy@MWCNTs can absorb ultrasound irradiation by both of its components, and it was introduced as a new sonosensitizer. The composite was characterized by field emission scanning electron microscopy (FESEM), and its ability to temperature elevation was explored. FESEM images revealed that PPy@MWCNTs comprised nanotubes of 36.3 ± 5.1 nm in diameter with up to several micrometer in length. Ultrasound irradiation at 1 MHz and 1.0 W cm-2 for 60 s in four steps led to an efficient SDT in vitro (16.3 ± 2.8°C temperature increment for 250 μg mL-1 of PPy@MWCNTs), in C540 (B16/F10) cell line and a melanoma tumor model in male balb/c mice. In vitro examinations revealed that PPy@MWCNTs represented a concentration-dependent cytotoxicity on multi-step ultrasound irradiation (a cell viability of 8.9% for 250 μg mL-1 of PPy@MWCNTs). Histologic analyses and tumor volume decrement after 10 d revealed detrimental SDT effects of PPy@MWCNTs on tumors (75% necrosis and 50% decrement in tumor volume). Thermal effects and reactive oxygen species generation were the reasons of the working function of PPy@MWCNTs in SDT.
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Affiliation(s)
- Niloufar Behzadpour
- Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aliyeh Ranjbar
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Student research committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Naghmeh Sattarahmady
- Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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14
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Yu G, Wang Y, Cao H, Zhao H, Xie Y. Reactive Oxygen Species and Catalytic Active Sites in Heterogeneous Catalytic Ozonation for Water Purification. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5931-5946. [PMID: 32324393 DOI: 10.1021/acs.est.0c00575] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Heterogeneous catalytic ozonation (HCO) processes have been widely studied for water purification. The reaction mechanisms of these processes are very complicated because of the simultaneous involvement of gas, solid, and liquid phases. Although typical reaction mechanisms have been established for HCO, some of them are only appropriate for specific systems. The divergence and deficiency in mechanisms hinders the development of novel active catalysts. This critical review compares the various existing mechanisms and categorizes the catalytic oxidation of HCO into radical-based oxidation and nonradical oxidation processes with an in-depth discussion. The catalytic active sites and adsorption behaviors of O3 molecules on the catalyst surface are regarded as the key clues for further elucidating the O3 activation processes, evolution of reactive oxygen species (ROS) or organic oxidation pathways. Moreover, the detection methods of the ROS produced in both types of oxidations and their roles in the destruction of organics are reviewed with discussion of some specific problems among them, including the scavengers selection, experiment results analysis as well as some questionable conclusions. Finally, alternative strategies for the systematic investigation of the HCO mechanism and the prospects for future studies are envisaged.
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Affiliation(s)
- Guangfei Yu
- CAS Key Laboratory of Green Process & Engineering, Beijing Engineering Research Center of Process Pollution Control, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuxian Wang
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum- Beijing, Beijing 102249, China
| | - Hongbin Cao
- CAS Key Laboratory of Green Process & Engineering, Beijing Engineering Research Center of Process Pollution Control, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - He Zhao
- CAS Key Laboratory of Green Process & Engineering, Beijing Engineering Research Center of Process Pollution Control, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongbing Xie
- CAS Key Laboratory of Green Process & Engineering, Beijing Engineering Research Center of Process Pollution Control, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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15
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Sivakumar PM, Islami M, Zarrabi A, Khosravi A, Peimanfard S. Polymer-Graphene Nanoassemblies and their Applications in Cancer Theranostics. Anticancer Agents Med Chem 2019; 20:1340-1351. [PMID: 31746307 DOI: 10.2174/1871520619666191028112258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND OBJECTIVE Graphene-based nanomaterials have received increasing attention due to their unique physical-chemical properties including two-dimensional planar structure, large surface area, chemical and mechanical stability, superconductivity and good biocompatibility. On the other hand, graphene-based nanomaterials have been explored as theranostics agents, the combination of therapeutics and diagnostics. In recent years, grafting hydrophilic polymer moieties have been introduced as an efficient approach to improve the properties of graphene-based nanomaterials and obtain new nanoassemblies for cancer therapy. METHODS AND RESULTS This review would illustrate biodistribution, cellular uptake and toxicity of polymergraphene nanoassemblies and summarize part of successes achieved in cancer treatment using such nanoassemblies. CONCLUSION The observations showed successful targeting functionality of the polymer-GO conjugations and demonstrated a reduction of the side effects of anti-cancer drugs for normal tissues.
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Affiliation(s)
- Ponnurengam M Sivakumar
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Vietnam
| | - Matin Islami
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Orta Mah., 34956 Tuzla, Istanbul, Turkey
| | - Arezoo Khosravi
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran
| | - Shohreh Peimanfard
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran
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16
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Thermal catalysis under dark ambient conditions in environmental remediation: Fundamental principles, development, and challenges. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63366-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Xiang H, Chen Y. Energy-Converting Nanomedicine. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805339. [PMID: 30773837 DOI: 10.1002/smll.201805339] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/22/2019] [Indexed: 05/12/2023]
Abstract
Serious side effects to surrounding normal tissues and unsatisfactory therapeutic efficacy hamper the further clinic applications of conventional cancer-therapeutic strategies, such as chemotherapy and surgery. The fast development of nanotechnology provides unprecedented superiorities for cancer therapeutics. Externally activatable therapeutic modalities mediated by nanomaterials, relying on highly effective energy transformation to release therapeutic elements/effects (cytotoxic reactive oxygen species, thermal effect, photoelectric effect, Compton effect, cavitation effect, mechanical effect or chemotherapeutic drug) for cancer therapies, categorized and termed as "energy-converting nanomedicine," have arouse considerable concern due to their noninvasiveness, desirable tissue-penetration depth, and accurate modulation of therapeutic dose. This review summarizes the recent advances in the engineering of intelligent functional nanotherapeutics for energy-converting nanomedicine, including photo-based, radiation-based, ultrasound-based, magnetic field-based, microwave-based, electric field-based, and radiofrequency-based nanomedicines, which are enabled by external stimuli (light, radiation, ultrasound, magnetic field, microwave, electric field, and radiofrequency). Furthermore, biosafety issues of energy-converting nanomedicine related to future clinical translation are also addressed. Finally, the potential challenges and prospects of energy-converting nanomedicine for future clinical translation are discussed.
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Affiliation(s)
- Huijing Xiang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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18
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Muñoz-Batista MJ, Ballari MM, Kubacka A, Alfano OM, Fernández-García M. Braiding kinetics and spectroscopy in photo-catalysis: the spectro-kinetic approach. Chem Soc Rev 2018; 48:637-682. [PMID: 30516217 DOI: 10.1039/c8cs00108a] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The combination of kinetic and spectroscopic tools has become a key scientific methodology for the understanding of catalytic behavior but its application in photocatalysis has inherent difficulties due to the nature of the energy source of the reaction. This review article provides an overview of its use by, first, presenting mechanistically derived kinetic formulations and spectroscopic data handling methods including intrinsic expressions for light and, second, highlighting representative examples of application. To do it we consider universal catalytic systems, particularly (although not exclusively) titania-based materials, and the most frequent hole and/or electron triggered reaction schemes. This review also provides a general framework to pave the way for the future progress of the spectro-kinetic approach in the photocatalysis area.
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Affiliation(s)
- Mario J Muñoz-Batista
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie, 2, 28049 Madrid, Spain. and Departamento de Química Orgánica, Universidad de Córdoba, Edif. Marie Curie, Ctra Nnal IV-A, Km 396, E14014, Córdoba, Spain
| | - María M Ballari
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), Güemes 3450, 3000, Santa Fe, Argentina.
| | - Anna Kubacka
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie, 2, 28049 Madrid, Spain.
| | - Orlando M Alfano
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC, UNL-CONICET), Güemes 3450, 3000, Santa Fe, Argentina.
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19
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Liu Y, Meng X, Wang H, Tang Z, Zuo C, He M, Bu W. Photoelectron Transfer at ZnTPyP Self-Assembly/TiO 2 Interfaces for Enhanced Two-Photon Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1492-1498. [PMID: 29271197 DOI: 10.1021/acsami.7b14451] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two-photon (TP) absorption nanomaterials are highly desirable for deep-tissue clinical diagnostics and orthotopic disease treatment. Here, a well-designed core/shell nanostructure was successfully synthesized with a ZnTPyP self-assembly nanocrystal (ZSN) inner core coated by a homogeneous TiO2 layer outside (ZSN-TO). The ZSN is a good photosemiconductor, showing both one-photon (OP) and TP absorption properties for red fluorescence emission and electron-hole pair generation; TiO2 with good biocompatibility acts as the electron acceptor, which can transfer photoelectron from ZSN to TiO2 for highly effective electron-hole separation, favoring the production of long-life superoxide anion (O2•-) by electrons and oxygen and strong oxidizing hydroxyl radical (•OH) by holes and surrounding H2O. Once pretreated with ZSN-TO, the simultaneous OP-405 nm or TP-800 nm laser stimulation and fluorescent imaging of reactive oxygen species (ROS) showed dynamical and continuous generation of ROS in HeLa cells, with cytotoxicity significantly increasing via the type-1-like photodynamic therapy process. The results demonstrated that the combination of organic ZSN with inorganic TiO2 has great applications as an excellent photosensitizer for deep-tissue fluorescent imaging and noninvasive disease treatment via TP photodynamic therapy.
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Affiliation(s)
- Yanyan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhong-shan Road, Shanghai 200062, P. R. China
| | - Xianfu Meng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhong-shan Road, Shanghai 200062, P. R. China
| | - Han Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding-xi Road, Shanghai 200050, P. R. China
| | - Zhongmin Tang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding-xi Road, Shanghai 200050, P. R. China
| | - Changjing Zuo
- Department of Nuclear Medicine, Changhai Hospital of Shanghai , 168 Chang-hai Road, Shanghai 200433, P. R. China
| | - Mingyuan He
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhong-shan Road, Shanghai 200062, P. R. China
| | - Wenbo Bu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, College of Chemistry and Molecular Engineering, East China Normal University , 3663 North Zhong-shan Road, Shanghai 200062, P. R. China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Ding-xi Road, Shanghai 200050, P. R. China
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20
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Photo Protection of Haematococcus pluvialis Algae by Astaxanthin: Unique Properties of Astaxanthin Deduced by EPR, Optical and Electrochemical Studies. Antioxidants (Basel) 2017; 6:antiox6040080. [PMID: 29065482 PMCID: PMC5745490 DOI: 10.3390/antiox6040080] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 01/30/2023] Open
Abstract
Abstract The antioxidant astaxanthin is known to accumulate in Haematococcus pluvialis algae under unfavorable environmental conditions for normal cell growth. The accumulated astaxanthin functions as a protective agent against oxidative stress damage, and tolerance to excessive reactive oxygen species (ROS) is greater in astaxanthin-rich cells. The detailed mechanisms of protection have remained elusive, however, our Electron Paramagnetic Resonance (EPR), optical and electrochemical studies on carotenoids suggest that astaxanthin's efficiency as a protective agent could be related to its ability to form chelate complexes with metals and to be esterified, its inability to aggregate in the ester form, its high oxidation potential and the ability to form proton loss neutral radicals under high illumination in the presence of metal ions. The neutral radical species formed by deprotonation of the radical cations can be very effective quenchers of the excited states of chlorophyll under high irradiation.
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21
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Vodišek N, Ramanujachary K, Brezová V, Lavrenčič Štangar U. Transparent titania-zirconia-silica thin films for self-cleaning and photocatalytic applications. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.12.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Radicals formed from proton loss of carotenoid radical cations: A special form of carotenoid neutral radical occurring in photoprotection. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 166:148-157. [DOI: 10.1016/j.jphotobiol.2016.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 10/13/2016] [Accepted: 11/16/2016] [Indexed: 11/22/2022]
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23
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Deepagan VG, You DG, Um W, Ko H, Kwon S, Choi KY, Yi GR, Lee JY, Lee DS, Kim K, Kwon IC, Park JH. Long-Circulating Au-TiO 2 Nanocomposite as a Sonosensitizer for ROS-Mediated Eradication of Cancer. NANO LETTERS 2016; 16:6257-6264. [PMID: 27643533 DOI: 10.1021/acs.nanolett.6b02547] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Although sonodynamic therapy (SDT) has emerged as a potential alternative to conventional photodynamic therapy, the low quantum yield of the sonosensitizer such as TiO2 nanoparticles (NPs) is still a major concern. Here, we have developed hydrophilized Au-TiO2 nanocomposites (HAu-TiO2 NCs) as sonosensitizers for improved SDT. The physicochemical properties of HAu-TiO2 NCs were thoroughly studied and compared with their counterparts without gold deposition. Upon exposure of HAu-TiO2 NCs to ultrasound, a large quantity of reactive oxygen species (ROS) were generated, leading to complete suppression of tumor growth after their systemic administration in vivo. Overall, it was evident that the composites of gold with TiO2 NPs significantly augmented the levels of ROS generation, implying their potential as SDT agents for cancer therapy.
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Affiliation(s)
- V G Deepagan
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Dong Gil You
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - Wooram Um
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University , Seoul 06351, Republic of Korea
| | - Hyewon Ko
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University , Seoul 06351, Republic of Korea
| | - Seunglee Kwon
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Ki Young Choi
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Gi-Ra Yi
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Jun Young Lee
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Doo Sung Lee
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Kwangmeyung Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - Jae Hyung Park
- School of Chemical Engineering, College of Engineering, Sungkyunkwan University , Suwon 16419, Republic of Korea
- Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University , Seoul 06351, Republic of Korea
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Qian X, Zheng Y, Chen Y. Micro/Nanoparticle-Augmented Sonodynamic Therapy (SDT): Breaking the Depth Shallow of Photoactivation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:8097-8129. [PMID: 27384408 DOI: 10.1002/adma.201602012] [Citation(s) in RCA: 475] [Impact Index Per Article: 59.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 05/28/2016] [Indexed: 05/08/2023]
Abstract
The fast development of photoactivation for cancer treatment provides an efficient photo-therapeutic strategy for cancer treatment, but traditional photodynamic or photothermal therapy suffers from the critical issue of low in vivo penetration depth of tissues. As a non-invasive therapeutic modality, sonodynamic therapy (SDT) can break the depth barrier of photoactivation because ultrasound has an intrinsically high tissue-penetration performance. Micro/nanoparticles can efficiently augment the SDT efficiency based on nanobiotechnology. The state-of-art of the representative achievements on micro/nanoparticle-enhanced SDT is summarized, and specific functions of micro/nanoparticles for SDT are discussed, from the different viewpoints of ultrasound medicine, material science and nanobiotechnology. Emphasis is put on the relationship of structure/composition-SDT performance of micro/nanoparticle-based sonosensitizers. Three types of micro/nanoparticle-augmented SDT are discussed, including organic and inorganic sonosensitizers and micro/nanoparticle-based but sonosensitizer-free strategies to enhance the SDT outcome. SDT-based synergistic cancer therapy augmented by micro/nanoparticles and their biosafety are also included. Some urgent critical issues and potential developments of micro/nanoparticle-augmented SDT for efficient cancer treatment are addressed. It is highly expected that micro/nanoparticle-augmented SDT will be quickly developed as a new and efficient therapeutic modality which will find practical applications in cancer treatment. At the same time, fundamental disciplines regarding materials science, chemistry, medicine and nanotechnology will be advanced.
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Affiliation(s)
- Xiaoqin Qian
- Department of Ultrasound, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212002, P. R. China
| | - Yuanyi Zheng
- Sixth Affiliated Hospital of Shanghai Jiaotong University & Shanghai Institute of Ultrasound in Medicine, Shanghai, 200233, P. R. China.
| | - Yu Chen
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
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Kalluru P, Vankayala R, Chiang CS, Hwang KC. Nano-graphene oxide-mediated In vivo fluorescence imaging and bimodal photodynamic and photothermal destruction of tumors. Biomaterials 2016; 95:1-10. [DOI: 10.1016/j.biomaterials.2016.04.006] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/26/2016] [Accepted: 04/08/2016] [Indexed: 01/24/2023]
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26
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UV-induced reactions of Mg 2+ -doped anatase nanocrystals with exposed {0 0 1} facets: An EPR study. J Catal 2015. [DOI: 10.1016/j.jcat.2015.08.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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27
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Dvoranová D, Barbieriková Z, Brezová V. Radical intermediates in photoinduced reactions on TiO2 (an EPR spin trapping study). Molecules 2014; 19:17279-304. [PMID: 25353381 PMCID: PMC6271711 DOI: 10.3390/molecules191117279] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/29/2014] [Accepted: 10/22/2014] [Indexed: 01/10/2023] Open
Abstract
The radical intermediates formed upon UVA irradiation of titanium dioxide suspensions in aqueous and non-aqueous environments were investigated applying the EPR spin trapping technique. The results showed that the generation of reactive species and their consecutive reactions are influenced by the solvent properties (e.g., polarity, solubility of molecular oxygen, rate constant for the reaction of hydroxyl radicals with the solvent). The formation of hydroxyl radicals, evidenced as the corresponding spin-adducts, dominated in the irradiated TiO2 aqueous suspensions. The addition of 17O-enriched water caused changes in the EPR spectra reflecting the interaction of an unpaired electron with the 17O nucleus. The photoexcitation of TiO2 in non-aqueous solvents (dimethylsulfoxide, acetonitrile, methanol and ethanol) in the presence of 5,5-dimethyl-1-pyrroline N-oxide spin trap displayed a stabilization of the superoxide radical anions generated via electron transfer reaction to molecular oxygen, and various oxygen- and carbon-centered radicals from the solvents were generated. The character and origin of the carbon-centered spin-adducts was confirmed using nitroso spin trapping agents.
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Affiliation(s)
- Dana Dvoranová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, Bratislava SK-812 37, Slovakia
| | - Zuzana Barbieriková
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, Bratislava SK-812 37, Slovakia
| | - Vlasta Brezová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, Bratislava SK-812 37, Slovakia.
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28
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Angelé-Martínez C, Goodman C, Brumaghim J. Metal-mediated DNA damage and cell death: mechanisms, detection methods, and cellular consequences. Metallomics 2014; 6:1358-81. [DOI: 10.1039/c4mt00057a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metal ions cause various types of DNA damage by multiple mechanisms, and this damage is a primary cause of cell death and disease.
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Affiliation(s)
| | - Craig Goodman
- Department of Chemistry
- Clemson University
- Clemson, USA
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29
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Lipovsky A, Gedanken A, Lubart R. Visible Light-Induced Antibacterial Activity of Metaloxide Nanoparticles. Photomed Laser Surg 2013; 31:526-30. [DOI: 10.1089/pho.2012.3339] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Anat Lipovsky
- Department of Chemistry, Kanbar Laboratory for Nanomaterials, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Aharon Gedanken
- Department of Chemistry, Kanbar Laboratory for Nanomaterials, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Rachel Lubart
- Departments of Chemistry and Physics, Bar-Ilan University, Ramat-Gan, Israel
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30
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Dinn J, Liu JL, Bashir S. Use of natural products as green reducing agents to fabricate highly effective nanodisinfectants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:2019-2027. [PMID: 23384122 DOI: 10.1021/jf3043677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Disinfection of water using nanoparticles (NPs) can be achieved through selection of either metals (M) or transition metal oxides (TMO). In this research, 64 formulations of silver-titania nanocomposites (Ag/TiO2) were prepared via a feasible wet-chemistry technique using different natural products as reducing agents. Four selected products successfully reduced Ag(+) ions to Ag, allowing Ag/TiO2 composite to efficiently inactivate microbes found in the activated sludge. The degree of antibacterial activity was measured using zone of inhibition, which indicated all formulations inactivated the bacteria with high potency (0.01 I/6 h). The results from this study and comparison of literature values collectively suggest that light roasted coffee acted as one of the best natural reducing agents due to its low antioxidant index (LAI). Our selection framework also suggested any M/TMO with an oxygen reduction potentials (ORP) range of -0.41 to +1.23 V and any natural product with a LAI (<0.5) would be suitable as a reducing agent. Collectively, the high ORP and low AI provide effective disinfection of water-borne microbes.
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Affiliation(s)
- James Dinn
- Department of Chemistry, Texas A&M University-Kingsville , MSC 161, 700 University Boulevard, Kingsville, Texas 78363, United States
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Luo CX, Liu JK, Lu Y, Du CS. Controllable preparation and sterilization activity of zinc aluminium oxide nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Perelshtein I, Applerot G, Perkas N, Grinblat J, Gedanken A. A one-step process for the antimicrobial finishing of textiles with crystalline TiO2 nanoparticles. Chemistry 2012; 18:4575-82. [PMID: 22407609 DOI: 10.1002/chem.201101683] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 12/19/2011] [Indexed: 11/11/2022]
Abstract
Titanium oxide (TiO(2)) nanoparticles (NPs) in their two forms, anatase and rutile, were synthesized and deposited onto the surface of cotton fabrics by using ultrasonic irradiation. The structure and morphology of the nanoparticles were analyzed by using characterization methods such as XRD, TEM, STEM, and EDS. The antimicrobial activities of the TiO(2)-cotton composites were tested against Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) strains, as well as against Candida albicans. Significant antimicrobial effect was observed, mainly against Staphylococcus aureus. In addition, the combination of visible light and TiO(2) NPs showed enhanced antimicrobial activity.
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Affiliation(s)
- Ilana Perelshtein
- Department of Chemistry, Kanbar Laboratory for Nanomaterials, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
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Corazzari I, Livraghi S, Ferrero S, Giamello E, Fubini B, Fenoglio I. Inactivation of TiO2 nano-powders for the preparation of photo-stable sunscreens via carbon-based surface modification. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32876c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Lipovsky A, levitski L, Tzitrinovich Z, Gedanken A, Lubart R. The Different Behavior of Rutile and Anatase Nanoparticles in Forming Oxy Radicals Upon Illumination with Visible Light: An EPR Study. Photochem Photobiol 2011; 88:14-20. [DOI: 10.1111/j.1751-1097.2011.01015.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dodd NJF, Jha AN. Photoexcitation of Aqueous Suspensions of Titanium Dioxide Nanoparticles: An Electron Spin Resonance Spin Trapping Study of Potentially Oxidative Reactions. Photochem Photobiol 2011; 87:632-40. [DOI: 10.1111/j.1751-1097.2011.00897.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Krylova G, Dimitrijevic NM, Talapin DV, Guest JR, Borchert H, Lobo A, Rajh T, Shevchenko EV. Probing the Surface of Transition-Metal Nanocrystals by Chemiluminesence. J Am Chem Soc 2010; 132:9102-10. [DOI: 10.1021/ja102413k] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Galyna Krylova
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Nada M. Dimitrijevic
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Dmitri V. Talapin
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Jeffrey R. Guest
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Holger Borchert
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Arun Lobo
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Tijana Rajh
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
| | - Elena V. Shevchenko
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, Department of Chemistry, University of Chicago, Chicago, Illinois 60637, Energy and Semiconductor Research laboratory, Department of Physics, University of Oldenburg, Oldenburg, 26111, Germany, and HASYLAB at DESY, Hamburg, D-22607, Germany
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Polyakov NE, Leshina TV, Meteleva ES, Dushkin AV, Konovalova TA, Kispert LD. Enhancement of the photocatalytic activity of TiO2 nanoparticles by water-soluble complexes of carotenoids. J Phys Chem B 2009; 114:14200-4. [PMID: 19968316 DOI: 10.1021/jp908578j] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Photoirradiation of TiO(2) nanoparticles by visible light in the presence of the water-soluble natural polysaccharide arabinogalactan complexes of the hydrocarbon carotenoid β-carotene leads to enhanced yield of the reactive hydroxyl (OH) radicals. The electron paramagnetic resonance (EPR) spin-trapping technique using α-phenyl-N-tert-butyl nitrone (PBN) as the spin-trap has been applied to detect this intermediate by trapping the methyl and methoxy radicals generated upon reaction of the hydroxyl radical with dimethylsulfoxide (DMSO). The free radicals formed in this system proceed via oxygen reduction and not via the reaction of holes on the TiO(2) surface. As compared with pure carotenoids, carotenoid-arabinogalactan complexes exhibit an enhanced quantum yield of free radicals and stability toward photodegradation. The observed enhancement of the photocatalytic efficiency for carotenoid complexes, as measured by the quantum yield of the desired spin adducts, arises specifically from the decrease in the rate constant for the back electron transfer to the carotenoid radical cation. These results are important for a variety of TiO(2) applications, namely, in photodynamic therapy, and in the design of artificial light-harvesting, photoredox, and catalytic devices.
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Dimitrijevic NM, Rozhkova E, Rajh T. Dynamics of Localized Charges in Dopamine-Modified TiO2 and their Effect on the Formation of Reactive Oxygen Species. J Am Chem Soc 2009; 131:2893-9. [DOI: 10.1021/ja807654k] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nada M. Dimitrijevic
- Center for Nanoscale Materials, and Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Elena Rozhkova
- Center for Nanoscale Materials, and Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Tijana Rajh
- Center for Nanoscale Materials, and Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439
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Production of reactive oxygen species induced by a new [60]fullerene derivative bearing a tetrazole unit and its possible biological applications. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2008.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kwon BG. Characterization of the hydroperoxyl/superoxide anion radical (HO2/O2−) formed from the photolysis of immobilized TiO2 in a continuous flow. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2008.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Photocatalytic discoloration of organic compounds on outdoor building cement panels modified by photoactive coatings. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2006.12.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nosaka Y, Natsui H, Sasagawa M, Nosaka AY. Electron Spin Resonance Studies on the Oxidation Mechanism of Sterically Hindered Cyclic Amines in TiO2 Photocatalytic Systems. J Phys Chem B 2006; 110:12993-9. [PMID: 16805605 DOI: 10.1021/jp061765h] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A sterically hindered cyclic amine, 4-hydroxy-2,2,6,6-tetramethylpiperidine (HTMP), is converted to the corresponding aminoxyl radical (nitroxide radical), 4-hydroxy-2,2,6,6-tetramethyl piperidine 1-oxyl (TEMPOL radical) as a result of a photocatalytic reaction in TiO2 aqueous suspension. The time profile of the radical formation and the effect of additives, such as SCN-, I-, methanol, and H2O2, on the initial formation rate were measured in order to elucidate the reaction mechanism. The experimental observations indicated that the direct photocatalytic oxidation of HTMP followed by reaction with O2 is the dominant process in the formation of TEMPOL radicals. Electrochemical measurements showed that HTMP is oxidized at 0.7 V (vs NHE), which is consistent with the proposed mechanism. The possibility of other processes, involving reactions with singlet molecular oxygen, superoxide radical, and hydroxyl radical, were excluded from the reaction mechanism.
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Affiliation(s)
- Yoshio Nosaka
- Department of Chemistry, Nagaoka University of Technology, Kamitomioka, Nagaoka 940-2188, Japan.
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Cík G, Priesolová S, Bujdáková H, Sersen F, Potheöová T, Kristín J. Inactivation of bacteria G(+)-S. aureus and G(-)-E. coli by phototoxic polythiophene incorporated in ZSM-5 zeolite. CHEMOSPHERE 2006; 63:1419-26. [PMID: 16325229 DOI: 10.1016/j.chemosphere.2005.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2005] [Revised: 09/26/2005] [Accepted: 10/13/2005] [Indexed: 05/05/2023]
Abstract
A new heterogeneous photocatalyst was prepared by oxidative polymerization of the thiophene with ferric chloride in the ZSM-5 zeolite type. The synthesized polythiophene absorbs radiation in the visible range of the electromagnetic spectrum and by illumination with visible light generates reactive oxygen species (ROS) in water medium. During illumination reactive hydroxyl radical was detected by the spin trapping EPR method. Efficiency of the photocatalyst was tested on the killing of Gram-positive bacteria Staphylococcus aureus and Gram negative bacteria Escherichia coli.
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Affiliation(s)
- Gabriel Cík
- Department of Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic.
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Yuranova T, Mosteo R, Bandara J, Laub D, Kiwi J. Self-cleaning cotton textiles surfaces modified by photoactive SiO2/TiO2 coating. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2005.08.059] [Citation(s) in RCA: 236] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bozzi A, Yuranova T, Guasaquillo I, Laub D, Kiwi J. Self-cleaning of modified cotton textiles by TiO2 at low temperatures under daylight irradiation. J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2005.03.019] [Citation(s) in RCA: 185] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bozzi A, Yuranova T, Kiwi J. Self-cleaning of wool-polyamide and polyester textiles by TiO2-rutile modification under daylight irradiation at ambient temperature. J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2004.11.010] [Citation(s) in RCA: 224] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Brezová V, Gabcová S, Dvoranová D, Stasko A. Reactive oxygen species produced upon photoexcitation of sunscreens containing titanium dioxide (an EPR study). JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2005; 79:121-34. [PMID: 15878117 DOI: 10.1016/j.jphotobiol.2004.12.006] [Citation(s) in RCA: 150] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2004] [Revised: 12/30/2004] [Accepted: 12/30/2004] [Indexed: 11/16/2022]
Abstract
Commercial sunscreen products containing titanium dioxide were irradiated with lambda>300 nm and the formation of oxygen- (.OH, O2.-/.OOH) and carbon-centered radicals was monitored by EPR spectroscopy and spin trapping technique using 5,5-dimethyl-1-pyrroline N-oxide, alpha-phenyl-N-tert-butylnitrone (PBN), alpha-(4-pyridyl-1-oxide)-N-tert-butylnitrone as spin traps, and free nitroxide radical 4-hydroxy-2,2,6,6-tetramethylpiperidine N-oxyl. The photoinduced production of singlet oxygen was shown by 4-hydroxy-2,2,6,6-piperidine. The generation of reactive oxygen radical species upon irradiation of sunscreens significantly depends on their composition, as the additives present (antioxidants, radical-scavengers, solvents) can transform the reactive radicals formed to less harmful products. The continuous in situ irradiation of titanium dioxide powder, recommended for cosmetic application, investigated in different solvents (water, dimethyl sulfoxide, isopropyl myristate) resulted in the generation of oxygen-centered reactive radical species (superoxide anion radical, hydroxyl and alkoxyl radicals).
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Affiliation(s)
- Vlasta Brezová
- Department of Physical Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
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Raja P, Bozzi A, Mansilla H, Kiwi J. Evidence for superoxide-radical anion, singlet oxygen and OH-radical intervention during the degradation of the lignin model compound (3-methoxy-4-hydroxyphenylmethylcarbinol). J Photochem Photobiol A Chem 2005. [DOI: 10.1016/j.jphotochem.2004.07.009] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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