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Ma M, Sun H, Yu X, Xin C, Liu J, Guo J, Li M, Tian Y. Designing step-scheme AgI decorated Ta 2O 5-x heterojunctions for boosted photodegradation of organic pollutants. Chemosphere 2024; 350:141020. [PMID: 38141668 DOI: 10.1016/j.chemosphere.2023.141020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/13/2023] [Accepted: 12/20/2023] [Indexed: 12/25/2023]
Abstract
Step-scheme (S-scheme) AgI decorated Ta2O5-x heterojunctions have been designed and synthesized via a combination of solvothermal and chemical deposition methods for enhanced visible-light harvesting and high-performance photocatalysis. The AgI nanoparticles showed great influences on the visible-light absorption and charge separation between AgI and Ta2O5-x microspheres. The experimental results indicated that the as-prepare AgI/Ta2O5-x composites achieved enhanced photocatalytic performance towards tetracycline degradation under visible light, and the AgI/Ta2O5-x-11 sample displayed the highest photocatalytic performance and the maximum rate constant of approximately 0.09483 min-1, which was 7.22 times that of Ta2O5-x microspheres and 2.56 times that of AgI, respectively. The highly enhanced photocatalytic performance was mainly attributed to the construction of S-scheme heterostructure and formation of oxygen vacancies in Ta2O5-x microspheres. In addition, the trapping experimental and DMPO spin-trapping ESR spectra confirmed the ⸱O2- and ⸱OH species as the main radicals during tetracycline degradation. Current work indicates an S-scheme tantalum-based composites for high-performance environmental photocatalysis.
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Affiliation(s)
- Min Ma
- Henan Key Laboratory of Polyoxometalates Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Hezheng Sun
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Xin Yu
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China.
| | - Changhui Xin
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Jing Liu
- Henan Key Laboratory of Polyoxometalates Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Junmeng Guo
- Key Lab for Special Functional Materials, Ministry of Education, School of Materials Science and Engineering, Henan University, Kaifeng 475004, China
| | - Mingxue Li
- Henan Key Laboratory of Polyoxometalates Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China.
| | - Yajie Tian
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China.
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Jiao Y, Zhang X, Yang H, Ma H, Zou J. Mesoporous tantalum oxide nanomaterials induced cardiovascular endothelial cell apoptosis via mitochondrial-endoplasmic reticulum stress apoptotic pathway. Drug Deliv 2023; 30:108-120. [PMID: 36533874 PMCID: PMC9788694 DOI: 10.1080/10717544.2022.2147251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Along with its wide range of potential applications, human exposure to mesoporous tantalum oxide nanomaterials (PEG@mTa2O5) has substantially risen. Accumulative toxic investigations have shown the PEG@mTa2O5 intake and cardiovascular diseases (CVD). Endothelial cell death is crucial in the onset and development of atherosclerosis. Still, the molecular mechanism connecting PEG@mTa2O5 and endothelium apoptosis remains unclear. Herein, we studied the absorption and toxic action of mesoporous tantalum oxide (mTa2O5) nanomaterials with polyethylene glycol (PEG) utilizing human cardio microvascular endothelial cells (HCMECs). We also showed that PEG@mTa2O5 promoted apoptosis in endothelial cells using flow cytometry and AO-EB staining. In conjunction with the ultrastructure modifications, PEG@mTa2O5 prompted mitochondrial ROS production, cytosolic Ca2+ overload, ΔΨm collapse, and ER stress verified by elevated ER-Tracker staining, upregulated XBP1 and GRP78/BiP splicing. Remarkably, the systemic toxicity and blood compatibility profile of PEG@mTa2O5 can greatly improve successive therapeutic outcomes of NMs while reducing their adverse side effects. Overall, our findings suggested that PEG@mTa2O5-induced endothelium apoptosis was partially mediated by the activation of the endoplasmic reticulum stress-mitochondrial cascade.
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Affiliation(s)
- Yuanyong Jiao
- Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Xiwei Zhang
- Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Hongyu Yang
- Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Hao Ma
- Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China
| | - Junjie Zou
- Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing, China,CONTACT Junjie Zou Department of Vascular Surgery, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Guangzhou Road 300, Gulou District, Nanjing210029, China
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Piestrzyńska M, Dominik M, Kosiel K, Janczuk-Richter M, Szot-Karpińska K, Brzozowska E, Shao L, Niedziółka-Jonsson J, Bock WJ, Śmietana M. Ultrasensitive tantalum oxide nano-coated long-period gratings for detection of various biological targets. Biosens Bioelectron 2019; 133:8-15. [PMID: 30903939 DOI: 10.1016/j.bios.2019.03.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 11/28/2022]
Abstract
In this work we discussed a label-free biosensing application of long-period gratings (LPGs) optimized in refractive index (RI) sensitivity by deposition of thin tantalum oxide (TaOx) overlays. Comparing to other thin film and materials already applied for maximizing the RI sensitivity, TaOx offers good chemical and mechanical stability during its surface functionalization and other biosensing experiments. It was shown theoretically and experimentally that when RI of the overlay is as high as 2 in IR spectral range, for obtaining LPGs ultrasensitive to RI, the overlay's thickness must be determined with subnanometer precision. In this experiment the TaOx overlays were deposited using Atomic Layer Deposition method that allowed for achieving overlays with exceptionally well-defined thickness and optical properties. The TaOx nano-coated LPGs show RI sensitivity determined for a single resonance exceeding 11,500 nm/RIU in RI range nD= 1.335-1.345 RIU, as expected for label-free biosensing applications. Capability for detection of various in size biological targets, i.e., proteins (avidin) and bacteria (Escherichia coli), with TaOx-coated LPGs was verified using biotin and bacteriophage adhesin as recognition elements, respectively. It has been shown that functionalization process, as well as type of recognition elements and target analyte must be taken into consideration when the LPG sensitivity is optimized. In this work optimized approach made possible detection of small in size biological targets such as proteins with sensitivity reaching 10.21 nm/log(ng/ml).
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Affiliation(s)
- Monika Piestrzyńska
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Warsaw, Koszykowa 75, Poland
| | - Magdalena Dominik
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Warsaw, Koszykowa 75, Poland
| | - Kamil Kosiel
- Institute of Electron Technology, Al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Marta Janczuk-Richter
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Katarzyna Szot-Karpińska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ewa Brzozowska
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114 Wrocław, Poland
| | - Liyang Shao
- Southern University of Science and Technology, Department of Electrical and Electronic Engineering, Shenzhen 518055, China
| | | | - Wojtek J Bock
- Université du Québec en Outaouais, Centre de Recherche en Photonique, 101 Rue Saint-Jean-Bosco, Gatineau, QC, Canada J8X 3X7
| | - Mateusz Śmietana
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Warsaw, Koszykowa 75, Poland; Southern University of Science and Technology, Department of Electrical and Electronic Engineering, Shenzhen 518055, China.
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Song G, Ji C, Liang C, Song X, Yi X, Dong Z, Yang K, Liu Z. TaOx decorated perfluorocarbon nanodroplets as oxygen reservoirs to overcome tumor hypoxia and enhance cancer radiotherapy. Biomaterials 2016; 112:257-263. [PMID: 27768978 DOI: 10.1016/j.biomaterials.2016.10.020] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 10/09/2016] [Accepted: 10/11/2016] [Indexed: 12/18/2022]
Abstract
Cancer radiotherapy (RT) is a clinically used tumor treatment strategy applicable for a wide range of solid tumors. However, during RT treatment of tumors, only a small portion of applied ionizing irradiation energy is absorbed by the tumor, in which the largely hypoxic microenvironment also limits the anti-tumor efficacy of RT. In this work, we rationally fabricate polyethylene glycol (PEG) stabilized perfluorocarbon (PFC) nano-droplets decorated with TaOx nanoparticles (TaOx@PFC-PEG) as a multifunctional RT sensitizer. The obtained TaOx@PFC-PEG nanoparticles on one hand can absorb X-ray by TaOx to concentrate radiation energy within tumor cells, on the other hand after saturating PFC with oxygen will act as an oxygen reservoir to gradually release oxygen and improve tumor oxygenation. As the result, remarkably enhanced in vivo RT treatment is achieved with TaOx@PFC-PEG nanoparticles in our mouse tumor model experiments. Our work thus presents a new nanotechnology strategy to enhance RT-induced tumor treatment by simultaneously concentrating radiation energy within tumors and improving tumor oxygenation, using one multifunctional agent.
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Affiliation(s)
- Guosheng Song
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou, Jiangsu 215123, China
| | - Chenghong Ji
- Department of Respiratory Diseases, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Chao Liang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou, Jiangsu 215123, China
| | - Xuejiao Song
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou, Jiangsu 215123, China
| | - Xuan Yi
- School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X) Medical College of Soochow University Suzhou, Jiangsu 215123, China
| | - Ziliang Dong
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou, Jiangsu 215123, China
| | - Kai Yang
- School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X) Medical College of Soochow University Suzhou, Jiangsu 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou, Jiangsu 215123, China.
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