Article
Nanoscience & Nanotechnology
Yu Zhao, Ran Lu, Xin Wang, Xiaochen Huai, Caiyun Wang, Yuji Wang, Su Chen
Summary: The study successfully fabricated the H-TNTs/f-Ti composite with enhanced visible light-induced photoelectric response and more hydroxyl functional groups, which can improve the biocompatibility of dental implants and inhibit bacterial growth effectively.
Article
Chemistry, Physical
Neda Mohaghegh, Maya Endo-Kimura, Kunlei Wang, Zhishun Wei, Alireza Hassani Najafabadi, Fatemeh Zehtabi, Negar Hosseinzadeh Kouchehbaghi, Saurabh Sharma, Agata Markowska-Szczupak, Ewa Kowalska
Summary: For the first time, titania-based photocatalysts with different crystalline compositions and morphology were modified and tested for antimicrobial activity. The antimicrobial inactivation mechanism was found to follow two different pathways, depending on the conditions. The improved photocatalytic activity of the modified samples was attributed to the hindrance of charge carriers' recombination by phosphate anions in the modification.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Andrew J. Gayle, Julia D. Lenef, Park A. Huff, Jing Wang, Fenghe Fu, Gayatri Dadheech, Neil P. Dasgupta
Summary: Highly transparent self-cleaning surfaces capable of harvesting near-visible light were synthesized and characterized. The use of Pt-TiO2 nanoparticles embedded in a SiO2 matrix allowed for water adsorption and formation of reactive oxide species upon illumination, resulting in the removal of surface contaminants. The ability to adjust the self-cleaning rate and transparency by varying the film morphology offers potential applications in touchscreen displays.
Article
Nanoscience & Nanotechnology
Junggou Kwon, Kyoungjun Choi, Murielle Schreck, Tian Liu, Elena Tervoort, Markus Niederberger
Summary: The study presents a facile method for nitrogen doping monolithic titanium dioxide nanoparticle-based aerogels to activate them for visible light, demonstrating significant enhancement in visible light-driven photocatalytic H-2 production by balancing dopant concentration and defects to improve optical absorption and charge separation efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Shufang Chang, Yiwen Hu, Jun Qian, Yinlin Shao, Shuang Ni, Lulu Kong, Wenyan Dan, Chun Luo, Shu Jin, Xiaoxiang Xu
Summary: Nitrogen-doped Mg2TiO4 spinel, designated as Mg2TiO4-xNy, has been synthesized and studied as a photocatalyst for antibacterial activity. It shows superior photocatalytic performance for E. coli disinfection under visible light, generating superoxide radicals that are crucial for bacteria disinfection. The presence of nitrogen dopants enhances the visible light sensitivity of Mg2TiO4-xNy, making it a promising candidate for water purification and antibacterial products.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Ceramics
Toshiki Miyazaki, Satoshi Imanaka, Jun Akaike
Summary: The study demonstrates that titania with different valences exhibit varying abilities to form apatite in simulated body fluid, with all samples forming apatite after treatment with NaOH solution. The surface electrical states of TiO and Ti2O3 are strongly influenced by their bulk conductivity, leading to poor apatite-forming ability.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Chaehun Lim, Ha-Rim An, Seongmin Ha, Seongjae Myeong, Chung Gi Min, Hea-Jong Chung, Byoungchul Son, Chang-Yeon Kim, Ji-In Park, Hyeran Kim, Hyun Uk Lee, Young-Seak Lee
Summary: We propose an underwater plasma method to produce nanoporous N-doped TiO2 (N-TiO2) photocatalysts with high reactivity in the visible light range. The unique energy input of this technology enables the synthesis, crystallization, doping, and porosity of TiO2 within minutes. The resulting N-TiO2 demonstrates a nanoporous structure with doped N atoms, which leads to narrow bandgap, effective charge-carrier separation, and enhanced light absorbing ability. The N-TiO2 photocatalysts exhibit efficient photocatalytic activities and excellent antibacterial ability, making them suitable for environmental and biomedical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Atef Dridi, Khira Zlaoui Riahi, Saida Somrani
Summary: The study focuses on the mechanism of bone-like apatite formation on two poorly crystalline apatite (PCA) samples in simulated body fluid. Experimental and theoretical data revealed a three-stage process of apatite formation, with the immature specimen undergoing a fast precipitation of positively Ca-rich amorphous phase in the prenucleation stage. This research provides insights into the bioactive behavior of biomaterials containing biomimetic PCA phases for tissue engineering.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Biochemistry & Molecular Biology
Kanae Suzuki, Misato Iwatsu, Takayuki Mokudai, Maiko Furuya, Kotone Yokota, Hiroyasu Kanetaka, Masaya Shimabukuro, Taishi Yokoi, Masakazu Kawashita
Summary: In this study, titania (TiO2) co-doped with silver (Ag) at 2.5 at.% and copper (Cu) at 4.9 at.% was formed on Ti substrates. The co-doped TiO2 showed osteoconductivity by forming apatite in a simulated body fluid. It also exhibited antibacterial activity against Escherichia coli, which was enhanced by visible-light irradiation. Dental implants with this co-doped TiO2 on their surface may reduce the risk of peri-implantitis.
Article
Chemistry, Inorganic & Nuclear
G. Nagaraj, S. Tamilarasu
Summary: This study developed anatase TiO2 samples synthesized using a facile photon-induced method at different reaction times. The 10 days TiO2 sample exhibited stable anatase phase with excellent antibacterial activity against Staphylococcus aureus and Escherichia coli, showing 80% and 82% killing efficacy, respectively, at concentrations as low as 100 mu g/mL.
JOURNAL OF CLUSTER SCIENCE
(2021)
Review
Chemistry, Physical
Marcin Janczarek, Ewa Kowalska
Summary: This review explored the preparation, characterization, mechanisms, and activity testing of defective titania, suggesting that self-doped TiO2 could be a more cost-effective photocatalytic material. However, there are still uncertain research findings and unanswered questions that require further investigation and verification.
Article
Biochemistry & Molecular Biology
Minal Thacker, Yi-Ning Chen, Chun-Pin Lin, Feng-Huei Lin
Summary: This study evaluated the efficacy and cytotoxicity of a bleaching gel composed of CaO2 and N-TiO2, showing promising results in tooth whitening with good biocompatibility and non-toxicity. This formulation could be a stable, safe, and effective substitute for current tooth whitening products on the market.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Construction & Building Technology
Abdul Halim Hamdany, Yuanzhao Ding, Shunzhi Qian
Summary: In this study, a graphene oxide-titanium dioxide composite was successfully synthesized through a one-step hydrothermal process, and its structure, morphology, and photocatalytic activity were characterized. The results showed that the synthesized GO-TiO2 composite exhibited efficient photocatalytic inactivation of Escherichia coli under visible light. Furthermore, the composite demonstrated enhanced visible light absorption and a narrowed bandgap, leading to reduced energy requirements for photoexcitation.
JOURNAL OF SUSTAINABLE CEMENT-BASED MATERIALS
(2023)
Article
Materials Science, Ceramics
Toshiki Miyazaki, Yosuke Sudo
Summary: This study investigates apatite formation on surface-modified Hf metal in simulated body fluid. The results show that Hf samples soaked in NH4F solution have the highest apatite-forming ability, and the porous structure plays a dominant role in apatite formation. Furthermore, there is little correlation between surface energy and apatite formation.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Nanoscience & Nanotechnology
Jianxin Li, Yuhua Wang, Haixiang Song, Yao Guo, Shuaishuai Hu, Huibin Zheng, Shiding Zhang, Xianchang Li, Qianqian Gao, Chengbo Li, Zunwei Zhu, Yitong Wang
Summary: Photocatalysis technology is a hotspot in solving social problems such as energy crisis and environmental pollution. Constructing heterojunction and improving sunlight utilization are important ways to enhance photocatalytic efficiency. This study successfully synthesized nitrogen-doped rutile titania and graphite phase carbon nitride composites. The photocatalytic hydrogen production rate of the nitrogen-doped rutile titania/graphitic carbon nitride composite reaches 2121.9 μmol h(-1) g(-1), which is 2.57 times higher than that of the pristine graphitic carbon nitride. The Z-scheme heterojunction formed at the carbon nitride interface effectively promotes the improvement of photocatalytic performance. This research provides a feasible idea for the design and popularization of new cheap photocatalysts in the field of renewable energy.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Materials Science, Biomaterials
Toshiki Miyazaki, Jun Akaike, Masakazu Kawashita, Hong Ngee Lim
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2019)
Article
Chemistry, Physical
Guoqiang Xie, Hiroyasu Kanetaka, Hidemi Kato, Fengxiang Qin, Wei Wang
Article
Engineering, Biomedical
Takatoshi Ueda, Kyosuke Ueda, Koyu Ito, Kouetsu Ogasawara, Hiroyasu Kanetaka, Takayuki Mokudai, Yoshimi Niwano, Takayuki Narushima
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2019)
Article
Engineering, Biomedical
Misato Iwatsu, Hiroyasu Kanetaka, Takayuki Mokudai, Toru Ogawa, Masakazu Kawashita, Keiichi Sasaki
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Hiroki Chigama, Hiroyasu Kanetaka, Maiko Furuya, Kotone Yokota, Masakazu Kawashita
MATERIALS TRANSACTIONS
(2019)
Article
Biophysics
Toshiki Miyazaki, Akiko Iwanaga, Yuki Shirosaki, Masakazu Kawashita
COLLOIDS AND SURFACES B-BIOINTERFACES
(2019)
Article
Materials Science, Ceramics
Masakazu Kawashita, Hoji Ueno, Shoma Handa, Maiko Furuya, Kotone Yokota, Hiroyasu Kanetaka
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2020)
Article
Materials Science, Ceramics
Misaki Shibata, Tomoyuki Ogawa, Masakazu Kawashita
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Multidisciplinary
Taishi Yokoi, Tomoyo Goto, Takeharu Kato, Seiji Takahashi, Jin Nakamura, Tohru Sekino, Chikara Ohtsuki, Masakazu Kawashita
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2020)
Article
Engineering, Biomedical
Hiroki Chigama, Taishi Yokoi, Maiko Furuya, Kotone Yokota, Hiroyasu Kanetaka, Masakazu Kawashita
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2020)
Article
Materials Science, Ceramics
Myat Myat-Htun, Ahmad-Fauzi Mohd Noor, Masakazu Kawashita, Yanny Marliana Baba Ismail
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Physical
Taishi Yokoi, Masakazu Kawashita
Summary: This study investigates the steric structures of twelve different dicarboxylate ions incorporated into OCP by comparing experimentally determined interlayer distances with molecular sizes calculated based on their steric structures. The results show that succinate, glutarate, adipate, pimelate, suberate, and aspartate ions have linear structures, while azelate, sebacate, methylsuccinate, and malate ions exhibit bent structures. Additionally, the steric structure of the incorporated malonate ion significantly differs from others. This computational approach deepens understanding of dicarboxylate ions in OCP interlayer spaces.
Article
Biochemistry & Molecular Biology
Kanae Suzuki, Misato Iwatsu, Takayuki Mokudai, Maiko Furuya, Kotone Yokota, Hiroyasu Kanetaka, Masaya Shimabukuro, Taishi Yokoi, Masakazu Kawashita
Summary: In this study, titania (TiO2) co-doped with silver (Ag) at 2.5 at.% and copper (Cu) at 4.9 at.% was formed on Ti substrates. The co-doped TiO2 showed osteoconductivity by forming apatite in a simulated body fluid. It also exhibited antibacterial activity against Escherichia coli, which was enhanced by visible-light irradiation. Dental implants with this co-doped TiO2 on their surface may reduce the risk of peri-implantitis.
Article
Chemistry, Multidisciplinary
Toshiki Miyazaki, Takayuki Tange, Masakazu Kawashita, Balachandran Jeyadevan
Article
Biophysics
Cristina Potrich, Anna Pedrotti, Cecilia Pederzolli, Lorenzo Lunelli
Summary: This study developed different functional surfaces for capturing exosomes and verified their effectiveness through experiments. Among them, the negatively-charged surface performed the best, capturing a large number of exosomes and successfully analyzing their biomarkers.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Brojendra Nath Saren, Srushti Mahajan, Mayur Aalhate, Rahul Kumar, Essha Chatterjee, Indrani Maji, Ujala Gupta, Santosh Kumar Guru, Pankaj Kumar Singh
Summary: This study developed P-selectin-targeted dasatinib nanoparticles coated with chitosan and fucoidan (DST-CH-FUC-NPs), which showed sustained release, reduced hemolytic potential, increased cytotoxicity and cellular uptake compared to free dasatinib. These nanoparticles also demonstrated enhanced ROS production, mitochondrial membrane potential damage, apoptosis induction, cell migration inhibition, and disruption of lysosomal membrane integrity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Weiping Deng, Xiaohui Li, Ya Li, Zhongbing Huang, Yulin Wang, Ning Mu, Juan Wang, Tunan Chen, Ximing Pu, Guangfu Yin, Hua Feng
Summary: This study demonstrates the importance of chirality in nerve repair by constructing a GO-phenylalanine derivative hydrogel system. In vivo experiments show that the dextro group significantly improves functional recovery and histological restoration in rat sciatic nerve repair models. The doped GO promotes angiogenesis and myelination. These results suggest that chirality plays a crucial role in promoting nerve regeneration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xiaoyan Wang, Jin Gao, Yu Gao, Linlin Zhang, Congchao Xu, Qintong Li, Lin Li, Jianliang Xue
Summary: In this study, a highly effective surfactant producer strain, Bacillus Cereus GX7, was isolated from the oil tank bottom sludge of Shengli Oil Field in China. The biosurfactant produced by GX7 was identified as surfactin, a lipopeptide surfactant, through TLC, FT-IR, and LC-MS/MS analysis. The fermentation process of GX7 was optimized using single-factor experiments, focusing on the composition of fermentation medium and fermentation conditions. Glucose and peptone were found to be the best carbon and nitrogen sources, and the optimum temperature, inoculum amount, pH, rotation speed, and fermentation time for the strain were determined to be 30°C, 1%, 7.5, 150 rpm, and 48 h, respectively. After optimization, the surface tension and emulsification index of the fermentation broth were 26.84 mN/m and 57.84%, respectively. Furthermore, the biosurfactant produced by GX7 demonstrated good stability over a wide range of temperature, pH, and salt concentration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Rodney Marcelo do Nascimento, Christine Grauby-Heywang, Houssem Kahli, Nesrine Debez, Laure Beven, Ivan Helmuth Bechtold, Touria Cohen Bouhacina
Summary: This article presents a theoretical model based on thermodynamic rules to assess the early stages of bacterial biofilm formation on different material surfaces. By utilizing morphological characteristics of bacteria and Atomic Force Microscopy images, the model generates a dataset of energetically minimized states, which can be correlated with bacterial adhesion states.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Filipa A. L. S. Silva, Licinia Timochenco, Raquel Costa-Almeida, Jose Ramiro Fernandes, Susana G. Santos, Fernao D. Magalhaes, Artur M. Pinto
Summary: The study demonstrates that by photoreducing nanosized graphene oxide using ultraviolet radiation, nanometric particles with high light-to-heat conversion efficiency and water stability can be obtained. These nanomaterials exhibit high absorption in the near-infrared region and show no cytotoxicity towards human cells, indicating their potential for safe therapy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
D. Costa, V. De Matteis, F. Treso, G. Montani, M. Martino, R. Rinaldi, M. Corrado, M. Cascione
Summary: This review primarily discusses the relationship between contact lens discomfort (CLD) and the surface properties of contact lenses (CLs), specifically the coefficient of friction (CoF). The review emphasizes the importance of introducing a standardized protocol for measuring CoF and calls for a more precise evaluation of the relationship between surface properties and comfort in CLs users.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Debdip Brahma, Tamal Sarkar, Rupal Kaushik, Akshay Narayan Sarangi, Amar Nath Gupta
Summary: This in-vitro study evaluates the effect of reactive oxygen species (ROS) on the structural rearrangement of elastin. The results show that oxidative stress leads to a decrease in protein size and changes in secondary structure, potentially promoting protein aggregation. This study is important for therapeutics aiming to prevent elastin degradation and aging.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xin Yang, Qiang Wang, Chaoxi Yan, Degang Huang, Yinchang Zhang, Huazheng He, Shouliang Xiong, Congming Li, Pingbo Chen, Tingjun Ye, Dan Hu, Lei Wang
Summary: This study presents a practical and effective strategy to improve osseointegration in patients with osteoporosis. By coating titanium implants with polydopamine followed by strontium modification, the bi-functional implants promote bone regeneration and immune regulation. The results show good biocompatibility, sustained release of strontium ions, and stable osseointegration between bone tissues and implants.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Sengwang Fu, Jianping Zhu, Zhijun Jiang, Yue Cao, Yufei Chen, Lihao Zhang, Sunlong Li, Weipeng Lu, Chengbin Miao, Qing He, Qi Li, Weixing Zhang, Lehao Ren, Yachun Li, Hongchao Shi, Cihui Liu
Summary: Effective management of biofluids is crucial for in vivo surgical interventions. Recent advances include self-sealing needles, drug-eluting stents, and shear-thinning hydrogels. However, complications associated with intestinal mucosal injury and secondary damage still persist. In this study, researchers developed an interpenetrating Janus wettability stent coating that enables unidirectional draining of excessive biofluid. They also demonstrated directional biofluid movement using a self-pumping dressing with potential applications in biofluid collection and disease diagnosis through metal ion detection. This integrated system presents an opportunity for designing wound dressings with effective biofluid management and metal ion detection capabilities.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Maryam Hassani, Mojtaba Kamankesh, Mazda Rad-Malekshahi, Kobra Rostamizadeh, Farhad Rezaee, Ismaeil Haririan, Seyed Mojtaba Daghighi
Summary: Bacterial adhesion and biofilm formation on the surface of biomaterial implants is a critical problem, and a polymer brush coating with antiadhesive and antimicrobial properties has proven to be highly effective in resolving this issue.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Huaihong Zhang, Na Liu, Yuting Zhang, Hui Cang, Zhaosheng Cai, Ziqun Huang, Jun Li
Summary: A functionalized cationic polymer, CR-PQAC, was designed and synthesized for photothermal enhanced antimicrobial therapy. The CR-PQAC nanoparticles exhibited significant antibacterial activity and low cytotoxicity against mammalian cells.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Ipsita Sahu, Priyadarshi Chakraborty
Summary: Peptide nanotechnology bridges the gap between materials and biological worlds by utilizing self-assembly of short-peptide building blocks. Hydrogels engineered from these short peptides show great potential in biomedical applications, but their weak mechanical properties and limited functional diversity need to be addressed. Nanoengineering the networks of these hydrogels by incorporating small molecules, polymers, and inorganic/carbon nanomaterials can enhance their mechanical properties and expand their functional diversity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Hao Wei, Yajun Gu, Ao Li, Panpan Song, Dingding Liu, Feihu Sun, Xiaofeng Ma, Xiaoyun Qian
Summary: In this study, a stable three-dimensional conductive hydrogel was prepared by cross-linking MXenes to Matrigel hydrogel. The conductive hydrogel promotes the proliferation and differentiation of NSCs, providing new strategies for neural tissue engineering.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Yue Zhong, Xiaoli Ge, Juan Zhang, Qun Wei, Feng Wang, Yongke Zhong
Summary: The effect of oxygenic groups on the hemocompatibility of activated carbon was studied through liquid-phase oxidation and subsequent heat treatment. Results showed that the presence of oxygenic groups improved hemocompatibility, while their removal decreased it.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
