Article
Materials Science, Ceramics
Arshid Mir, Khushboo Iqbal, S. Rubab, M. A. Shah
Summary: This paper describes a novel one-step anodization synthesis of Fe-doped TiO2 nanotubes and analyzes the effect of doping concentration on the morphology, structure, and composition of the prepared samples. The results showed the formation of anatase phase with Fe incorporation in the TiO2 lattice. The absorption spectra showed a red shift and the photocurrent density of Fe-doped samples was significantly higher than that of the pristine TiO2 sample, with the best results obtained from a sample doped at a level of 0.5%.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Fumiaki Amano, Shimpei Nomura, Chihiro Tateishi, Satoshi Nakayama
Summary: TiO2 nanotube (TNT) photoanodes demonstrate effective oxygen evolution reaction (OER) in photoelectrochemical water oxidation. This study reveals that beta-PbO2 nanoparticles are selectively deposited on the catalytic site of the upper part of the TNT array with a length of around 1 μm, resulting in photocurrent decay. The deposition of PbO2 nanoparticles on both inner and outer surfaces of the tube walls is consistent with the charge separation mechanism at the space charge layers. The position of the OER site varies with the incident light wavelength due to the change in light penetration depth.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Ke Wang, Justin Phelps, Reza Abdolvand, Jennifer Carter, Hoda Amani Hamedani
Summary: This study investigates the electrodeposition of zinc on nanoporous metal oxide titania nanotube arrays (TiO2 NTAs) using a zinc-containing deep eutectic solvent (Zn2+-DES). The morphology and electrochemical properties of the Zn/TiO2 NTAs were affected by substrate morphology and crystallinity, deposition temperature, zinc concentration, and deposition time. The electrodeposition resulted in the formation of two-dimensional zinc nanohexagons on the TiO2 NTAs. The Zn/TiO2 NTAs exhibited improved electrochemical properties and lower impedance, making them a promising material system for implantable electrochemical sensors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Ceramics
Moe Kubota, Taishi Yokoi, Tomoyuki Ogawa, Shin Saito, Maiko Furuya, Kotone Yokota, Hiroyasu Kanetaka, Balachandran Jeyadevan, Masakazu Kawashita
Summary: A PMMA bone cement formulation containing TiO2 and Fe3O4 was proposed for treatment of bone defects caused by metastatic bone tumors, with the ability to be used in magnetic hyperthermia. Samples with 15% or higher TiO2 concentration formed apatite on their surfaces within 14 days in a simulated body fluid, while samples with 25% and 30% Fe3O4 reached temperatures over 42°C under specific AC magnetic fields, making them suitable for hyperthermia treatment.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
P. Cheranmadevi, K. Saranya, P. Agilan, N. Rajendran
Summary: The corrosion resistance and high strength-to-density ratio of titanium and its alloys make them ideal materials for orthopedic implants. In this study, a combinational treatment of titanium was conducted to improve its corrosion resistance and promote osseointegration. The results showed that gadolinium-coated titanium nanotubes exhibited better corrosion resistance and enhanced cell viability compared to bare titanium. The findings suggest that gadolinium-coated titanium nanotubes have potential applications in the treatment of bone-related disorders.
APPLIED SURFACE SCIENCE
(2023)
Article
Thermodynamics
Simiao Fan, Wei Tong, Fei Duan
Summary: The research found that the TiO2 nanotube coating has a significant impact on pool boiling heat transfer, improving both heat transfer coefficient and critical heat flux, and enhancing bubble dynamics and effective rewetting of dry spots.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Physical
Yuanyuan Kong, Mingxuan Sun, Xiaofang Hong, Ying Wang, Ahmad Umar
Summary: The preparation of a MoS2/CdS/TiO2 nanotube heterostructure enhances visible light response and electron transfer efficiency.
MoS2 coatings significantly improve the photoelectrochemical stability of CdS/TiO2 nanotube arrays.
The heterostructure exhibits promising photoelectrochemical properties for potential applications.
Article
Materials Science, Multidisciplinary
Sayed Hossein Mirdamadi, Mohammad Khodaei, Alireza Valanezhad, Ikuya Watanabe, Farahnaz Nejatidanesh, Omid Savabi
Summary: Different heat treatment temperatures were applied to titanium implants after surface modification using chemical treatment with hydrogen peroxide. XRD analysis showed that the main phase on the surface of heat-treated samples below 650 ? was anatase. Raman spectroscopy confirmed the presence of anatase as the dominant phase along the Raman shift with noticeable peak intensity. FESEM observation indicated that the porous structures did not significantly change in morphology with increasing temperature. Contact angle and ellipsometry measurements were used to determine the hydrophobicity and optical properties of the oxide surface, respectively.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Biochemistry & Molecular Biology
Natjaya Ekapakul, Chomdao Sinthuvanich, Hiroharu Ajiro, Chantiga Choochottiros
Summary: This study reported the synthesis and fabrication of composite hydrogels of chitosan and star shaped polycaprolactone, and highlighted their bioactivities. The composite hydrogels exhibited good mechanical properties and stability, as well as excellent antibacterial activity, high cell viability, and the ability to promote apatite nucleation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Ceramics
Meng Wu, Lenka Muller, Tatjana Schilling, Uwe Gbureck, Tao Wang, Frank A. Mueller
Summary: The study aimed at developing an improved TCS cement by incorporating PDA nanoparticles, which significantly reduced setting time, increased compressive strength, enhanced apatite-forming ability, and improved biocompatibility.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
V. Dhivya, S. Mahalaxmi, K. Rajkumar, V. V. Premkumar, B. Saravanakarthikeyan, R. Karpagam, R. Priyatharshini, K. Sakthipandi, V. Saikumari, N. Vijay, G. Rajkumar
Summary: This study investigated the effect of strontium on the properties of fluorphosphate glasses, finding that 6 mol% Sr-doped FPGs showed enhanced apatite-forming ability, increased cell viability, and improved bioactivity. The remineralization efficacy of 6 mol% Sr-doped FPGs was also demonstrated, suggesting potential therapeutic applications in teeth and bone tissue regeneration.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Camila Corral Nunez, Diego Altamirano Gaete, Miguel Maureira, Javier Martin, Cristian Covarrubias
Summary: The novel nanocomposite material containing nanoparticles of bioactive glass was found to promote attachment and proliferation of human dental pulp stem cells, as well as enhance the expression of ALP, leading to odontogenic differentiation. This opens up possibilities for the use of this nanocomposite in vital pulp therapies.
Article
Chemistry, Physical
Yuya Yamane, Takeshi Yabutsuka, Yusuke Takaoka, Chihiro Ishizaki, Shigeomi Takai, Shunsuke Fujibayashi
Summary: The study aimed to enhance the apatite-forming ability of 50% carbon fiber-polyetheretherketone composite (50C-PEEK) as artificial bone materials, achieving rapid formation of apatite phase in simulated body fluid through sulfuric acid treatment, oxygen plasma treatment, and calcium phosphate nuclei precipitation in modified-SBF solution.
Article
Materials Science, Ceramics
Shuxu Zhu, Guangshun Wu, Ziqi Liu, Shengzhan Zhao, Dandan Cao, Chenxu Li, Guijing Liu
Summary: Nanoflower-like CdS/SnS2/TiO2 NTs ternary heterojunction photocatalysts were synthesized by hydrothermal method, and the relationship between morphology, microscopic morphology, crystallinity, elemental presence state and hydrogen production performance was investigated. The photocatalytic performance, electrochemical property and hydrogen production capacity were compared with other NTs. The results showed high removal efficiency for MB wastewater and good photocatalytic efficiencies for RhB and Cr(VI) removal. The ESR technique confirmed the active radical groups and investigated the photocatalytic mechanism. Hydrogen production rate achieved 97.14 μmol h(-1) cm(-2), demonstrating a new technique for solar energy conversion.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Joao Henrique Lopes, Alvicler Magalha, Celso Aparecido Bertran
Summary: This study modified the surface of calcium sodium phosphosilicate glass using ion exchange in a molten salt bath, resulting in the formation of a core-shell structured bioactive glass (45S5@Ca45S5). The modified glass showed enhanced bioactivity and accelerated formation of amorphous calcium phosphate and apatite phase.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)