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Zhang Y, Huang T, Lv W, Yang K, Ouyang C, Deng M, Yi R, Chu H, Chen J. Controlled growth of titanium dioxide nanotubes for doxorubicin loading and studies of in vitro antitumor activity. Front Bioeng Biotechnol 2023; 11:1201320. [PMID: 37251571 PMCID: PMC10219631 DOI: 10.3389/fbioe.2023.1201320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Titanium dioxide (TiO2) materials are suitable for use as drug carriers due to their natural biocompatibility and nontoxicity. The aim of the study presented in this paper was to investigate the controlled growth of TiO2 nanotubes (TiO2 NTs) of different sizes via an anodization method, in order to delineate whether the size of NTs governs their drug loading and release profile as well as their antitumor efficiency. TiO2 NTs were tailored to sizes ranging from 25 nm to 200 nm according to the anodization voltage employed. The TiO2 NTs obtained by this process were characterized using scanning electron microscopy, transmission electron microscopy, and dynamic light scattering The larger TiO2 NTs exhibited greatly improved doxorubicin (DOX)-loading capacity (up to 37.5 wt%), which contributed to their outstanding cell-killing ability, as evidenced by their lower half-maximal inhibitory concentration (IC50). Comparisons were carried out of cellular uptake and intracellular release rates of DOX for large and small TiO2 NTs loaded with DOX. The results showed that the larger TiO2 NTs represent a promising therapeutic carrier for drug loading and controlled release, which could improve cancer treatment outcomes. Therefore, TiO2 NTs of larger size are useful substances with drug-loading potency that may be used in a wide range of medical applications.
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Affiliation(s)
- Yunshan Zhang
- Research Center for Intelligent Sensing Systems, Zhejiang Lab, Hangzhou, China
| | - Tuo Huang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Wanwan Lv
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Kai Yang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Cuiling Ouyang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Minxin Deng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Rongyuan Yi
- Fourth Department of Gynecologic Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hui Chu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
| | - Jian Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China
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Zhao S, Zhang Y, Li J, Qi L, Tang Y, Zhu J, Zhi J, Huang F. A Heteroanionic Zinc Ion Conductor for Dendrite-Free Zn Metal Anodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300195. [PMID: 36813539 DOI: 10.1002/adma.202300195] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/11/2023] [Indexed: 05/05/2023]
Abstract
Although zinc-based batteries are promising candidates for eco-friendly and cost-effective energy storage devices, their performance is severely retarded by dendrite formation. As the simplest zinc compounds, zinc chalcogenides, and halides are individually applied as a Zn protection layer due to high zinc ion conductivity. However, the mixed-anion compounds are not studied, which constrains the Zn2+ diffusion in single-anion lattices to their own limits. A heteroanionic zinc ion conductor (Zny O1- x Fx ) coating layer is designed by in situ growth method with tunable F content and thickness. Strengthened by F aliovalent doping, the Zn2+ conductivity is enhanced within the wurtzite motif for rapid lattice Zn migration. Zny O1- x Fx also affords zincophilic sites for oriented superficial Zn plating to suppress dendrite growth. Therefore, Zny O1- x Fx -coated anode exhibits a low overpotential of 20.4 mV for 1000 h cycle life at a plating capacity of 1.0 mA h cm-2 during symmetrical cell test. The MnO2 //Zn full battery further proves high stability of 169.7 mA h g-1 for 1000 cycles. This work may enlighten the mixed-anion tuning for high-performance Zn-based energy storage devices.
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Affiliation(s)
- Siwei Zhao
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yujing Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jidao Li
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100871, P. R. China
| | - Limin Qi
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yuxin Tang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Jia Zhu
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100871, P. R. China
| | - Jian Zhi
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Fuqiang Huang
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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Li C, Ni Y, Gong J, Song Y, Gong T, Zhu X. A review: research progress on the formation mechanism of porous anodic oxides. NANOSCALE ADVANCES 2022; 4:322-333. [PMID: 36132683 PMCID: PMC9417932 DOI: 10.1039/d1na00624j] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/19/2021] [Indexed: 06/16/2023]
Abstract
Owing to the great development potential of porous anodic oxides (PAO) in many fields, research on their formation mechanisms, fabrication processes and applications has a history of more than ten years. Although compared with research on the fabrication processes and applications of PAO, research on their formation mechanisms started late, several mainstream theories have been formed in the academic community, including the field-assisted dissolution (FAD) theory, the field-assisted ejection (FAE) theory, the self-organization theory, the ionic and electronic current theory and the oxygen bubble mould effect. This review will focus on summarizing the core views of the mainstream mechanisms mentioned above and comparing the explanations for some of their classical experimental phenomena.
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Affiliation(s)
- Chengyuan Li
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology Nanjing 210094 China
| | - Yilin Ni
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology Nanjing 210094 China
| | - Jingjing Gong
- School of Design Art and Media, Nanjing University of Science and Technology Nanjing 210094 China
| | - Ye Song
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology Nanjing 210094 China
| | - Tianle Gong
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology Nanjing 210094 China
| | - Xufei Zhu
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology Nanjing 210094 China
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TiO2 nanotube arrays with a volume expansion factor greater than 2.0: Evidence against the field-assisted ejection theory. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2020.106717] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Huang W, Xu H, Ying Z, Dan Y, Zhou Q, Zhang J, Zhu X. Split TiO2 nanotubes − Evidence of oxygen evolution during Ti anodization. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2019.106532] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Li C, Wu L, Zhao S, Jiang L, Yang Y, Zhang K, Zhu X. Essential influence of electrode and electrolyte temperatures on the anodizing process of Ti. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wu L, Zhang K, Zhu X, Cao S, Niu D, Feng X. Enhanced Capacitance of TiO 2 Nanotubes with a Double-Layer Structure Fabricated in NH 4F/H 3PO 4 Mixed Electrolyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5125-5129. [PMID: 30913389 DOI: 10.1021/acs.langmuir.8b04162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
TiO2 is an attractive electrode material in fast charging/discharging supercapacitors because of its high specific surface area. However, the low capacitance of TiO2 nanotubes as-anodized in the classical electrolyte restricts their further application in supercapacitors. Here, we study the performances of larger-diameter nanotubes with a double-layer structure fabricated in an NH4F/phosphoric acid (H3PO4) mixed electrolyte. Results show that the double-layer structure increased the specific surface area of nanotubes owing to the cavities between the double layers and the porous structure on walls. After soaking in H3PO4 aqueous solution for 40 min, the nanotubes anodized in the mixed electrolyte containing 6 wt % H3PO4 show a specific capacitance of 13.89 mF cm-2, ∼3.11 times that of the pristine nanotubes in the classical electrolyte. The specific surface area of the soaked nanotubes is up to 113.2 m2 g-1, which is ∼2.94 times that of the pristine nanotubes. The values of specific surface area of the anodized nanotubes and the soaked nanotubes fabricated in the mixed electrolyte containing 6 wt % H3PO4 are roughly equal. It demonstrated that the specific surface area increased mainly due to the double-layer structure. The double-layer structure reveals a new strategy to enhance the specific capacitance of TiO2 nanotubes.
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Affiliation(s)
- Lizhen Wu
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Ke Zhang
- Nanjing Research Institute of Electronics Technology , Nanjing 210039 , China
| | - Xufei Zhu
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Shikai Cao
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Dongmei Niu
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry , Nanjing University of Science and Technology , Nanjing 210094 , China
| | - Xiaojie Feng
- Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry , Nanjing University of Science and Technology , Nanjing 210094 , China
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Wu L, Xu D, Liu Z, Zhang S, Du Y, Ma W. A novel double-layer nanotube structure fabricated in high concentration H3PO4 and fluoride-containing mixed electrolyte without annealing. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.12.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Morphology evolution of TiO2 nanotubes with additional reducing agent: Evidence of oxygen release. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2018.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Mohamed M, Moustafa S, Taha SA, Abd-Elnaiem AM. Morphological characterization and refractive index calculation of anodized titanium (99.7%) foil in HF-ethanol electrolyte. MATERIALS RESEARCH EXPRESS 2018; 6:035026. [DOI: 10.1088/2053-1591/aaf7c0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Zhao S, Wu L, Li C, Li C, Yu M, Cui H, Zhu X. Fabrication and growth model for conical alumina nanopores – Evidence against field-assisted dissolution theory. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2018.05.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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