Review
Multidisciplinary Sciences
Xuecheng Zhu, Ruixue Duan, Siew Yin Chan, Luxuan Han, Huilin Liu, Baoguo Sun
Summary: Food processing is crucial for ensuring food quality and security. Optosensor-based technology, utilizing self-assembled peptide nanostructures, offers fast and real-time detection of pesticides, metal ions, antibiotics, and nutrients in food, with advantages including simple preparation, controllable morphology, and biocompatibility.
JOURNAL OF ADVANCED RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Qi-Zhi Zhong, Joseph J. Richardson, Ai He, Tian Zheng, Rene P. M. Lafleur, Jianhua Li, Wen-Ze Qiu, Denzil Furtado, Shuaijun Pan, Zhi-Kang Xu, Ling-Shu Wan, Frank Caruso
Summary: By employing a co-assembly strategy with quinone and polyamine building blocks, we have developed a method to precisely control the structure and properties of coatings on various materials, including thickness, adhesion, wettability, and zeta potential. The properties of the films can be tuned by increasing the length of the amine building blocks, and the films can be post-functionalized to form diverse nanostructures for various applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Jiajing Zhou, Matthew Penna, Zhixing Lin, Yiyuan Han, Rene P. M. Lafleur, Yijiao Qu, Joseph J. Richardson, Irene Yarovsky, Jesse V. Jokerst, Frank Caruso
Summary: The study introduces a versatile and robust coating (pBDT-TA) self-assembled from tannic acid (TA) and a self-polymerizing aromatic dithiol (BDT), which can be precisely tuned in thickness on diverse substrates and exhibits high stability in various harsh aqueous environments. Moreover, the coating enables secondary reactions and easy integration of other compounds, showcasing its potential for diverse applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ty Christoff-Tempesta, Elad Deiss-Yehiely, Pierre C. Dromel, Linnaea D. Uliassi, Cecile A. C. Chazot, Eveline Postelnicu, A. John Hart, Myron Spector, Paula T. Hammond, Julia H. Ortony
Summary: This study reports the self-assembly of strongly interacting small molecule amphiphiles into nanoribbons for antifouling coatings. The coated surfaces show significant reduction in protein adsorption, bacterial biofilm formation, and cell adhesion.
ADVANCED MATERIALS INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Tianyu Chen, Xiaoying Zhao, Yunxuan Weng
Summary: The surface morphology and topography of cell culture substrates are crucial for cell proliferation and growth. Polylactic acid (PLA), a biobased and biodegradable polymer, has been extensively studied for its biomedical applications. This review highlights the recent progress in the synthesis and self-assembly of surface microstructures based on PLA materials and discusses their applications in cell culturing and tissue engineering.
FRONTIERS IN CHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Caroline R. Basso, Bruno P. Crulhas, Gustavo R. Castro, Valber A. Pedrosa
Summary: Functional nanomaterials have been attracting attention for producing diverse structures in various fields. These materials have great potential applications in medicine, electronics, and energy, offering numerous unique properties. Through methods like self-assembly, nanostructures can be synthesized and utilized for similar purposes. This review focuses on recent advances in the field, discussing the fabrication and characterization of these materials, which can further be applied in optical, magnetic, electronic, and sensor fields.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Carlos E. Caballero-Guerecaa, M. R. Alfaro Cruza, E. Luevano-Hipolitoa, Leticia M. Torres-Martinez
Summary: Highly transparent ZnO films were successfully deposited on glass substrates using the sol-gel technique. The quality of the films was influenced by the concentration of zinc in the precursor solution and the annealing temperature. The films showed good crystallinity and preferential orientation, and exhibited high transmittance of over 90%.
SURFACES AND INTERFACES
(2023)
Article
Engineering, Environmental
Xiaohui Mao, Jinglin Tan, Lei Xie, Jingyi Wang, Hongbo Zeng
Summary: This study presents a novel functional slippery solid surface fabricated through the self-assembly of a non-fluorine small molecule, without the need for complex surface structures and lubricant oils. The surface allows for easy transport of air bubbles, water drops, and self-assembly of nanoparticles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Ruisong Wang, Karan Jakhar, Shoaib Ahmed, Dion S. Antao
Summary: Research investigates the mechanism of organofunctional silane SAM coating degradation during water vapor condensation and finds that coatings prepared in a dry environment exhibit superior long-term robustness.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Thermodynamics
Ruisong Wang, Jiahui Guo, Emily A. Muckleroy, Dion S. Antao
Summary: Dropwise condensation can improve heat transfer performance, but existing coatings are prone to degradation. By improving the preparation process of silane coatings, better durability and heat transfer performance can be achieved.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Suihua He, Hartmut Stadler, Xuankai Huang, Xiang Zheng, Guanjie Yuan, Martin Kuball, Miriam Unger, Carwyn Ward, Ian Hamerton
Summary: This study demonstrates a method to achieve phase-separated microdomains with nanoparticles in a liquid processable multi-component epoxy blend. By introducing 1-(2-aminoethyl) piperazine, a graphene microdomain with higher Young's modulus and thermal conductivity was obtained, while maintaining excellent dielectric properties. This promising new approach shows great potential for fabricating nanocomposite films with excellent performance for microelectronics applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Ramesh Sooryanarayana Bhat, Manjunatha Krishna Balakrishna, Poornesh Parthasarathy, Ampar Chitharanjan Hegde
Summary: Single-layer and multilayer alloy deposits were electroplated onto a mild steel substrate, consisting of Zn and Fe alloys with different compositions. The corrosion resistance of these deposits was evaluated using potentiodynamic polarization method, while their surface morphology, crystal structure, and Fe content were characterized using scanning electron microscopy, X-ray diffraction, colorimetry, and energy-dispersive X-ray spectroscopy, respectively. The microhardness of the coatings was measured using a Vickers indenter. It was found that the Zn-Fe multilayer coatings showed significantly improved corrosion resistance compared to the single-layer coating, making them crucial for the automotive industry and steel-based vehicle parts.
Article
Biochemistry & Molecular Biology
Xuan-Hung Pham, Van-Khue Tran, Eunil Hahm, Yoon-Hee Kim, Jaehi Kim, Wooyeon Kim, Bong-Hyun Jun
Summary: This study reports a novel method for preparing bimetallic nanoparticles with high activity using seed-mediated growth on a silica core template. The resulting nanoparticles exhibit excellent peroxidase-like nanozyme activity and high sensitivity for H2O2 detection.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Pharmacology & Pharmacy
Yawen Gao, Lele Wang, Xue Zhang, Ziling Zhou, Xinzhu Shen, Haodong Hu, Rui Sun, Jihui Tang
Summary: In recent years, self-assembled peptide nanotechnology has gained significant attention due to its ability to form diverse and functional structures. These materials, with their unique structures, exhibit excellent biocompatibility and controllability, and can form nanoparticles, nanofibers, and hydrogels for specific morphological functions. They have widespread applications in biomedical and material science fields. This review paper discusses the properties and influencing factors of self-assembled peptides, the nanostructures they form, and highlights their applications as drug carriers. The prospects and challenges in developing self-assembled peptide nanomaterials are also briefly discussed.
Article
Chemistry, Multidisciplinary
Kashinath T. Chavan, Sharat Chandra
Summary: In this study, we investigated the electronic structure, structural stability, optical properties, and the effect of surface passivation on CdTe nanostructures in 1D and 2D systems. Quantum confinement effect was observed when the thickness or diameter of the nanostructure became smaller than the excitonic Bohr radius of CdTe. All of the nanostructures showed improved structural stability with surface passivation, and both passivated and unpassivated nanostructures were suitable for optoelectronic applications. The 2D system in <110> orientation and the nanotube derived from the <111> monolayer were the most stable and showed the least enhancement in the energy bandgap upon passivation.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Editorial Material
Materials Science, Ceramics
Tatsuki Ohji, Young-Wook Kim, Jingyang Wang, Michael C. Halbig
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Kyusung Kim, Pil Gyu Choi, Toshio Itoh, Yoshitake Masuda
Summary: Atomic defects can enhance the catalytic efficiency of metal oxides, making chemical reactions easier. In this study, porous ZnO nanobelts with atomic step structures were fabricated for ultrasensitive gas sensing of acetone, ethanol, and isoprene at the parts-per-billion level.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Yoshitake Masuda
Summary: Cold crystallization and morphology control have been achieved for ZnO nanostructures, which can be used in various devices such as sensors, batteries, and catalysts.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Ryoichi Furushima, Yutaka Maruyama, Yuki Nakashima, Minh Chu Ngo, Tatsuki Ohji, Manabu Fukushima
Summary: The fracture toughness of silicon nitride ceramics can be evaluated directly from their microstructures using deep learning and convolutional neural network models. The study found that even when using only the microstructures as features, the determination coefficient was approximately 0.8, and further improved when the relative densities were added, indicating that the microstructures can effectively assess the fracture toughness of silicon nitride ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Yuki Nakashima, You Zhou, Keisuke Tanabe, Souhei Arima, Kiyoshi Hirao, Tatsuki Ohji, Norimitsu Murayama, Manabu Fukushima
Summary: Silicon nitride ceramics were prepared using a sintered reaction-bonded method, and the microstructure and dielectric breakdown strength of the ceramics were evaluated. The study found a correlation between the thickness of the ceramics and their dielectric breakdown strength.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Multidisciplinary Sciences
Pil Gyu Choi, Yoshitake Masuda
Summary: Mental stress management is crucial for human health as excessive and sustained mental stress can cause harm. This study focuses on allyl mercaptan, a biomarker associated with mental stress, and utilizes a nanosheet-type tin oxide gas sensor array to detect it. Gas classification models are built using supervised learning algorithms and principal component analysis, providing accurate forecasts for allyl mercaptan.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Kim Kyusung, Chunyan Li, Pil Gyu Choi, Toshio Itoh, Yoshitake Masuda
Summary: A simple synthesis method of freestanding Zinc hydroxidefluoride (ZnOHF) nanobelt as 1D material without seed or substrate using aqueous solutions was introduced in this study. The growth direction of the nanobelt can be controlled by the concentration of HMT, with lower HMT concentration resulting in broader nanobelt width.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Materials Science, Ceramics
Yuki Nakashima, You Zhou, Keisuke Tanabe, Souhei Arima, Teruhisa Okuno, Kiyoshi Hirao, Tatsuki Ohji, Manabu Fukushima
Summary: Sintered reaction-bonded silicon nitride ceramics were prepared with yttria and magnesia as sintering additives. The nitrogen pressure (0.1-1.0 MPa) was found to affect the microstructure, bending strength, fracture toughness, and thermal conductivity. The ratio of β phase increased with higher nitrogen pressure, resulting in a stable three-dimensional structure and the presence of pores in the sintered body. The properties of the ceramics varied depending on the nitridation mechanism, with the best properties observed at 0.1 MPa nitrogen pressure.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Kyusung Kim, Pil Gyu Choi, Toshio Itoh, Yoshitake Masuda
Summary: By changing the supply rate of hydroxide ions, we can control the morphology of ZnO nanomaterial and improve the sensitivity of metal-oxide-semiconductor gas sensors.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Ryoichi Furushima, Yuki Nakashima, Yutaka Maruyama, Kiyoshi Hirao, Tatsuki Ohji, Manabu Fukushima
Summary: The mechanical properties of silicon nitride ceramics, fracture toughness (K-IC) and bending strength (sigma), were determined using convolutional neural network (CNN) models based on microstructural images. A database of Si3N4 samples with various sintering additives and process conditions was used to train the CNN models and test their accuracy. The determination coefficients (R-2) were approximately 0.85 for K-IC and 0.92 for sigma, indicating high accuracy. The lower R-2 value for K-IC suggests that it is more influenced by microstructural information such as grain-boundary characteristics. The trained models correctly recognized the microstructural differences among the images to determine the mechanical properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Krishnaprasanth Alageshwaramoorthy, Pandian Mannu, Seetha Mahalingam, Ta Thi Thuy Nga, Han-Wei Chang, Yoshitake Masuda, Chung-Li Dong
Summary: In this study, the novel CuTa2O6 phase was synthesized by hydrothermal and calcination processes. X-ray diffraction confirmed the presence of different phases, with a phase transition to cubic crystal structure at high temperatures. Optical studies and FESEM images provided further characterization of the material. The photocatalytic activity of CuTa2O6 was evaluated for the degradation of MO dye and showed promising results.
FRONTIERS IN CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Yuki Otsuka, Junichi Tatami, Isao Yamamoto, Motoyuki Iijima, Tatsuki Ohji
Summary: This study investigated the strength of grains and grain boundaries in hydroxyapatite ceramics with different crystal orientations. The results showed that the strength of both the grains and grain boundaries were higher when the tensile stress was applied parallel to the c-axis compared to perpendicular orientation in the aligned material. These strengths were also significantly higher than those of randomly oriented ceramics. Furthermore, the polycrystalline strength was determined through three-point bending tests and showed similar values for aligned ceramics in both parallel and perpendicular stress applications, while the strength of randomly oriented ceramics was significantly lower. The results indicate that selective formation of high-strength grain boundaries due to c-axis alignment improves the mechanical properties of bulk ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Pil Gyu Choi, Yoshitake Masuda
Summary: A thin film of nanosheet-type tin oxide (SnO2) was synthesized on a sensor chip using an aqueous solution process. Au-Pd was then loaded onto the film's surface through ion sputtering. The sensor signal response of the Au-Pd loaded tin oxide to hydrogen was higher than that of the bare tin oxide, while its response to methane gas decreased. The designed nanosheet has potential applications as a hydrogen sensor array.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Chunyan Li, Pil Gyu Choi, Yoshitake Masuda
Summary: Gas sensors with high sensitivity and selectivity are crucial for practical applications, such as distinguishing target molecules in volatile organic compound detection, real-time security alerts, and clinical diagnostics. In this study, a large-lateral-area SnO2 nanosheet sensor was successfully synthesized via a one-step aqueous solution process. The SnO2 sensor exhibited remarkable sensitivity and anti-interference ability towards acetone, with excellent reproducibility and long-term stability. The ultrasensitive response of the SnO2 nanosheets can be attributed to their specific loose structure, small grain size, and metastable crystal facets.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Toshio Itoh, Yutaro Koyama, Yuichi Sakumura, Takafumi Akamatsu, Akihiro Tsuruta, Yoshitake Masuda, Woosuck Shin
Summary: We investigated the discriminant method for identifying volatile organic compounds (VOCs) in exhaled breath under both contaminated and purified air conditions using multiple semiconductive gas sensors and linear discriminant analysis (LDA) technique. Our developed discriminant method was used to analyze the resistance changes in sensor signals in the LDA space. The target gases were discriminated based on the angle of the locus of the test data in the 2-D LDA space. Our results demonstrated the feasibility of this method in discriminating target gases under contaminated air conditions.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
