Article
Chemistry, Multidisciplinary
Maria Efremova, Marina Spasova, Markus Heidelmann, Ivan S. Grebennikov, Zi-An Li, Anastasiia S. Garanina, Iana O. Tcareva, Alexander G. Savchenko, Michael Farle, Natalia L. Klyachko, Alexander G. Majouga, Ulf Wiedwald
Summary: Solid solution AuFe nanoparticles were synthesized for the first time under ambient conditions by an adapted method, which can be transformed into Janus Au/Fe particles upon annealing. This preparation route provides new perspective materials for magnetoplasmonics and biomedical applications.
Article
Chemistry, Multidisciplinary
Jia Dai, Xiang Cheng, Xiaofeng Li, Zhisheng Wang, Yufeng Wang, Jing Zheng, Jun Liu, Jiawei Chen, Changjin Wu, Jinyao Tang
Summary: A novel all-solution synthesis method was developed to produce gold-loaded titania-silica nanotrees as multifunctional self-propulsion microswimmers. These Janus nanotrees demonstrated multi-mode self-propulsion through light, heat, and electric field, making them suitable for various biomedical and environmental applications, including efficient water decontamination by reclaiming toxic mercury ions with enhanced efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Ahmad Nauman Shah Saqib, Nguyen Thi Thu Huong, Soo-Whan Kim, Myung-Hwa Jung, Young Haeng Lee
Summary: In this study, highly Fe-doped ZnO nanoparticles were synthesized in a one-step process using solution plasma, without the need for additional chemicals. The doping levels of Fe in the nanoparticles are easily controllable, and the magnetization can be adjusted by manipulating the Fe content and composition of Fe2+ and Fe3+ ions. This approach provides a platform for studying magnetic properties of doped semiconductors for spintronic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Xiao-jie Mi, Han Sol Choi, Hye-Ryung Park, Yeon Ju Kim
Summary: In this study, gold nanoparticles loaded with ginsenoside compound K were prepared using chitosan as the carrier. The physicochemical characterization of the nanoparticles was performed, and it was found that they exhibited good stability and had the ability to promote cellular uptake and inhibit the production of inflammatory cytokines. These findings suggest that the nanoparticles have potential as novel candidates for developing anti-inflammatory agents.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Nanoscience & Nanotechnology
Shilei Zhu, Zhehan Yu, Lihua Zhang, Seiichi Watanabe
Summary: Black TiO2 nanoparticles (b-TiO2) with superior solar-thermal water evaporation performance were prepared using a one-step solution plasma process (SPP). Radicals generated during SPP played a critical role in b-TiO2 formation, with a two-step mechanism proposed for its synthesis. The understanding gained from this study may inspire strategies for more efficient solar energy harvesting in solar-thermal conversion applications.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Lukas Gromotka, Maximilian Johannes Uttinger, Carola Schlumberger, Matthias Thommes, Wolfgang Peukert
Summary: This paper demonstrates the application of size-exclusion chromatography (SEC) in the classification and characterization of multimodal distributions of nanoparticles over a broad size range. The study shows that SEC can accurately determine the size distribution of complex nanoparticle dispersions and fractionate mixtures into coarse and fine fractions.
Article
Plant Sciences
Petra Lovecka, Anna Macurkova, Kamil Zaruba, Tomas Hubacek, Jakub Siegel, Olga Valentova
Summary: The study revealed that AgNPs and AuNPs have damaging effects on the DNA of tobacco plants, with significant DNA damage observed at a concentration of 30 mg.kg(-1) of AgNPs but no significant effect from AuNPs. The silver content in leaves at a concentration of 30 mg.kg(-1) of AgNPs was determined to be approximately 2.720 μg.g(-1). Long-term effects were found to be less harmful, possibly due to the plant's restoration capability.
Article
Chemistry, Inorganic & Nuclear
Weichong Zhao, Lihui Wang, Hua Chen, Lei Qi, Ruihong Yang, Tao Ouyang, Lei Ning
Summary: In this study, gold nanoparticles were successfully synthesized using the aqueous extract of Alhagi maurorum leaf, and their properties were characterized. The synthesized nanoparticles exhibited cytotoxicity and anti-cancer properties on prostate carcinoma cells. Additionally, the nanoparticles showed antioxidant activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Optics
Jean Y. Tovar-Sanchez, M. B. de la Mora, Tupak Garcia-Fernandez, Miguel A. Valverde-Alva, Citlali Sanchez-Ake, Rene Garcia-Contreras, Rosalba Castaneda-Guzman, Mayo Villagran-Muniz
Summary: Polymer-gold nanoparticle nanocomposites based on POSS polymer with a thiol group were obtained by laser ablation in liquids. The nanocomposites showed spherical geometry of the Au NPs mainly smaller than 60 nm, with typical absorbance spectra for spherical Au NPs in the visible range. The nanocomposites exhibited an improvement in colloid stability, absorbance peak, and reproducibility compared to NPs without POSS-thiol.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Bing Zhu, Na Xie, Lulu Yue, Kun Wang, Mutasem Z. Bani-Fwaz, Hosam-Eldin Hussein Osman, Attalla F. El-kott, Xuelian Bai
Summary: This study explored the potential of Spinacia oleracea L. leaf aqueous extract green-mediated gold nanoparticles (AuNPs) in the treatment of endometrial cancer. Through a series of experiments and tests, it was found that the AuNPs had good physicochemical properties and antioxidant properties, and showed significant inhibitory effects on endometrial cancer cell lines. The importance of S. oleracea leaf extract-mediated AuNPs as an anti-endometrial cancer material was validated.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Electrochemistry
Huihong Wu, Zhaoyuan Liu, Liangsheng Xu, Xin Wang, Qiang Chen, Kostya (Ken) Ostrikov
Summary: This study investigated the influence of solution pH on the formation of silver nanoparticles in a plasma electrochemical system. It was found that solvated electrons and hydrogen peroxide were responsible for the reduction of Ag+ at the solution anode and cathode, respectively, leading to the formation of AgNPs in specific pH conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Physics, Applied
L. Cechova, F. Krcma, M. Kalina, O. Man, Z. Kozakova
Summary: Silver and gold nanoparticles were produced using pinhole discharge in a precursor solution, with factors like discharge time, precursor concentration, and additives affecting particle size and stability. The addition of capping agents reduced the power input needed for stable discharge, while the stability of final particles was related to particle size, with smaller particles being more stable.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Microbiology
Khristina G. Judan Cruz, Eleonor D. Alfonso, Somar Israel D. Fernando, Kozo Watanabe
Summary: The study focuses on inhibiting biofilm formation of Candida albicans using ethnobotanical crude extracts and ethnobotanically-synthesized gold nanoparticles. Some CEs + AuNPs showed higher biofilm inhibition activity compared to CEs, indicating potential for developing anti-pathogenic drugs without inducing resistance. The research highlights the importance of biofilm inhibition activity of ethnobotanicals and the use of nanoparticles for drug delivery enhancement.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Physics, Applied
Avishek Das, Arthur C. M. V. Pereira, Anton A. Popov, Andrei Pastukhov, Sergei M. Klimentov, Andrei V. Kabashin, Anderson S. L. Gomes
Summary: Photoacoustic imaging (PAI) is a promising noninvasive biomedical diagnostic technique, but lacks efficient nano-sized contrast agents. Researchers found that titanium nitride (TiN) nanoparticles synthesized by pulsed laser ablation in liquids can be used as a contrast agent in PAI. These nanoparticles exhibit a strong nonlinear photoacoustic response and can generate high-resolution images.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Ceramics
C. Murugesan, Amarnath Pasupathi, A. Paul Blessington Selvadurai, Balraju Palanisamy, Yugeswaran Subramaniam
Summary: The properties of zinc oxide nanoparticles prepared by the solution precursor plasma spray (SPPS) technique were investigated. The crystalline structure was found to be hexagonal wurtzite with no secondary phase. The band gap of ZnO increased with higher concentration of the feedstock solution. The size and spherical shape of the nanoparticles were confirmed by microscopy. The electrical conductivity and dielectric constant of the ZnO powder were affected by the initial mole concentration.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Yun Zhang, Jun Huang, Zhu Liao, Anyi Hu, Xinyu Li, Nagahiro Saito, Zhengxi Zhang, Li Yang, Shin-ichi Hirano
Summary: By optimizing the crystal structure, the layered compound L0.9NMO not only achieves high initial Coulombic efficiency and stable cycling reversibility, but also effectively suppresses volume expansion and enhances conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mongkol Tipplook, Gasidit Panomsuwan, Yukihiro Muta, Nagahiro Saito
Summary: A study demonstrated a one-step synthesis of amphiphilic functional group-modified carbon-supported platinum catalyst via liquid-phase plasma process, improving the efficiency and durability of PEMFCs. The research findings suggest that the number of hydrophilic and hydrophobic characters on the carbon surface plays a crucial role in the performance of PEMFCs.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Gasidit Panomsuwan, Sittan Wongcharoen, Chayanapat Chokradcharoen, Mongkol Tipplook, Oratai Jongprateep, Nagahiro Saito
Summary: TiO2 hollow fibers decorated with Au nanoparticles show enhanced photocatalytic activity for methylene blue degradation under visible light, attributed to the combination of effective light-harvesting by the hollow structure and efficient visible-light absorption and charge separation induced by Au nanoparticles.
Article
Chemistry, Physical
Satita Thiangtham, Nagahiro Saito, Hathaikarn Manuspiya
Summary: The study demonstrated that incorporating sulfonated cellulose as a biofiller in biomembranes can significantly enhance the porosity and ionic conductivity of the separators, thereby improving the performance of lithium-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Jiangqi Niu, Chayanaphat Chokradjaroen, Nagahiro Saito
Summary: Graphitic nitrogen-doped graphene with high nitrogen content was successfully synthesized using a solution plasma method. The proposed method reduces excessive current, stabilizes the glow plasma, and promotes the preservation of nitrogen atoms and the formation of a graphitic carbon framework.
Article
Materials Science, Multidisciplinary
Rinyarat Naraprawatphong, Chayanaphat Chokradjaroen, Satita Thiangtham, Li Yang, Nagahiro Saito
Summary: This review discusses the structures, main properties, and synthesis methods of nanoscale advanced carbons, and summarizes currently good candidates for anode material for lithium-ion batteries. The importance of the primary function and the synergistic effect of nanoscale advanced carbons with active electrode species is emphasized. This review provides a promising tool for selecting anode electrode materials and designing the next generation of advanced lithium-ion batteries.
MATERIALS TODAY ADVANCES
(2022)
Article
Chemistry, Physical
Jidapa Chantaramethakul, Nicha Choophun, Chayanaphat Chokradjaroen, Anyarat Watthanaphanit, Nagahiro Saito, Gasidit Panomsuwan
Summary: Morphological control of gold nanoparticles (AuNPs) synthesized via solution plasma sputtering (SPS) in sodium chloride (NaCl) solutions has been investigated. The size, distribution, and stability of AuNPs were examined over 30 days of storage. The results show that the NaCl concentration and storage time critically influence the morphological evolution and stability of AuNPs. High NaCl concentration leads to coalescence and sedimentation of AuNPs. Additionally, oxidative etching affects the size and distribution of AuNPs, with larger particles observed at higher NaCl concentrations.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Junmo Moon, Hojung Yun, Junzo Ukai, Chayanaphat Chokradjaroen, Satita Thiangtham, Takeshi Hashimoto, Kyusung Kim, Yasuyuki Sawada, Nagahiro Saito
Summary: This study investigates the factors affecting the specific capacity and electrical conductivity of carbon materials used in Li-ion batteries for electric vehicles. Correlation analysis and descriptor vectors were used to examine the intercalation of Li ions and the number of graphene layers on the surface, which were found to have significant impacts on the capacity and conductivity. The study proposes correlation equations based on these findings and validates their effectiveness using experimental data and statistical methods. A candidate structure for improving battery performance is also proposed.
Article
Materials Science, Multidisciplinary
Seulgee Lee, Chayanaphat Chokradjaroen, Yasuyuki Sawada, Nagahiro Saito
Summary: Ternary and quaternary composites of Mg-Al-Ti and Mg-Al-Ti-Cu systems were successfully prepared using mechanical alloying and spark plasma sintering. The optimized process resulted in uniform composite microstructure, and the addition of Cu significantly improved the hardness.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Myo Myo Thu, Nattapat Chaiammart, Oratai Jongprateep, Ratchatee Techapiesancharoenkij, Aye Aye Thant, Nagahiro Saito, Gasidit Panomsuwan
Summary: Carbon nanoparticles synthesized via solution plasma process were thermally treated at different temperatures to introduce micropores and adjust pore structures for supercapacitor applications. The treatment temperature significantly affected the specific surface area and oxygen content of the nanoparticles. The charge storage properties were evaluated, and the nanoparticles treated at high temperatures showed improved cycling stability.
Article
Chemistry, Multidisciplinary
Kyusung Kim, Sangwoo Chae, Pil Gyu Choi, Toshio Itoh, Nagahiro Saito, Yoshitake Masuda
Summary: ZnO nano-bullets were synthesized using solution plasma without any chemical agents, exhibiting high crystalline structure with (100) and (101) crystal facets, showing potential for applications in advanced technologies.
Article
Materials Science, Multidisciplinary
Md Zahidul Islam, Anyarat Watthanaphanit, Sangwoo Chae, Nagahiro Saito
Summary: Nanocarbons were successfully synthesized using solution plasma process from benzene, nitro-benzene, and aniline, showing potential applications in next-generation batteries and energy conversion devices such as lithium-air batteries. The synthesized nanocarbons exhibited different properties, with the highest synthesis rate for benzene nanocarbon and high special capacity for aniline-derived nanocarbon in lithium-air battery. The oxygen reduction reaction in nanocarbons is crucial for the next-generation batteries and fuel cells.
MATERIALS ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
Phu Quoc Phan, Rinyarat Naraprawatphong, Phuwadej Pornaroontham, Junmu Park, Chayanaphat Chokradjaroen, Nagahiro Saito
Summary: The N-doped few-layer graphene encapsulated Pt-based bimetallic nanoparticles were successfully synthesized via the solution plasma (SP) method. The synthesis strategy exhibited fine core-shell structured nanoparticles with acceptable electrocatalytic activity towards the oxygen reduction reaction (ORR) and excellent durability, possibly attributed to the synergistic effect of the Pt-based bimetallic core and N-doped graphene shell containing high amounts of pyridinic-N and quaternary-N.
MATERIALS ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Phu Quoc Phan, Sangwoo Chae, Phuwadej Pornaroontham, Yukihiro Muta, Kyusung Kim, Xiaoyang Wang, Nagahiro Saito
Article
Nanoscience & Nanotechnology
Sangwoo Chae, Phu Quoc Phan, Gasidit Panomsuwan, Maria Antoaneta Bratescu, Takeshi Hashimoto, Katsuya Teshima, Nagahiro Saito
ACS APPLIED NANO MATERIALS
(2020)
