Article
Biochemistry & Molecular Biology
Epole Ntungwe, Eva Maria Dominguez-Martin, Gabrielle Bangay, Catarina Garcia, Iris Guerreiro, Eleonora Colombo, Lucilia Saraiva, Ana Maria Diaz-Lanza, Andreia Rosatella, Marta M. Alves, Catarina Pinto Reis, Daniele Passarella, Patricia Rijo
Summary: Different approaches to enhance drug penetration through physiological barriers, such as self-assembly drug conjugates, have shown to be promising in improving drug activity and penetration, and reducing side effects. In this study, three molecules derived from natural products were synthesized as lead molecules for self-assembled nanoparticles, which demonstrated lower cytotoxicity compared to their individual form when tested on different cell lines. The nanoparticles showed potential as prodrugs for the release of cytotoxic lead molecules based on their size, zeta potential, and low release of drug at physiological pH.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Nanoscience & Nanotechnology
Gheorghe Falca, Valentina E. Musteata, Stefan Chisca, Mohamed Nejib Hedhili, Chisiang Ong, Suzana P. Nunes
Summary: Membrane nanofiltration technology is widely used in pharmaceutical, chemical, and food industries for separating valuable products and recovering solvents. There is a need for greener membrane fabrication methods to ensure environmental friendliness and reduce emissions of volatile solvents during production. Researchers are proposing the use of environmentally friendly solvents and methods to improve membrane preparation processes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yanze Wei, Fenghua Zhang, Jingjing Wei, Zhijie Yang
Summary: This study presents a strategy to engineer MDHs between two low-dimensional materials using curvature-complementary self-assembly. The CdSe MDHs exhibit increased light absorption, efficient charge separation, and appropriate bandgap structure. Additionally, the MDHs alleviate the sluggish kinetics of electron transfer in the CdSe subunits and act as ideal photocatalysts for benzylamine oxidation.
Article
Biochemistry & Molecular Biology
Bingrui Liu, Yuyan Li, Yuan Yuan, Bosen Zheng, Chang Liu, Lijuan Zhou, Jianming Zhang
Summary: Phosphoric acid is used as a favorable alternative to strong acids in the production of cellulose nanospheres (CNS). In this study, CNS was synthesized from natural cotton pulp using phosphoric acid hydrolysis, achieving a reduced production time of 4 hours compared to the reported 12-hour hydrolysis. The size of the CNS was further controlled by changing the hydrolysis time, and the thermal stability of the CNS generated from phosphoric acid hydrolysis was significantly greater compared to sulphuric acid hydrolysis.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Hengbo Song, Yiwei Zhang, Li Sun, Mingming Tian, Gongjie Li, Dongmei Ban, Mengmei Pan, Xiaoying Liu, Lin Li, Ziyi Yuan, Zhaoxia Kou, Ya Zhai
Summary: Positive to negative transition of magnetoresistance (MR) at room temperature was achieved by vacuum annealing Fe3O4 (128 nm) / Si (with natural SiO2) heterostructures at 780°C. The sign of MR is determined by the contribution of two Fe3O4 layers, one at the Fe3O4/SiO2 interface and the other far away from the interface. The SiO2 layer on top of the substrate plays a crucial role in the magnetotransport properties of Fe3O4 heterostructures. Vacuum annealing the Fe3O4 film on Si substrate with a proper thickness of natural SiO2 layer at 780°C can lead to a well-property and negative spin polarization of Fe3O4 film.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Xuan Peng, Linlin Gan, Wenchao Zhai, Xiaoling Chen, Ke Deng, Wubiao Duan, Wei Li, Qingdao Zeng
Summary: In this study, the self-assembly and co-assembly behaviors of two tetracarboxylic acid derivatives (H4BDETP and H4BTB) were investigated using scanning tunneling microscopy (STM). H4BDETP molecules formed linear nanostructures, while H4BTB molecules formed lamellar and tetragonal nanostructures. The co-assembly nanostructure of H4BDETP/H4BTB was influenced by the deposition sequence of H4BDETP and H4BTB on highly oriented pyrolytic graphite (HOPG).
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Qingda Liu, Qinghua Zhang, Wenxiong Shi, Hanshi Hu, Jing Zhuang, Xun Wang
Summary: The assembly of polyoxometalate clusters into layered structures, referred to as clusterphenes, has been reported. These 2D structures exhibit uniform hexagonal pores and in-plane electron delocalization properties. The resulting clusterphenes show improved stability and catalytic efficiency, thanks to the electron delocalization within the 2D layer.
Article
Nanoscience & Nanotechnology
Yuchuan Xiao, Jiayu Tao, Xuan Peng, Yuting Song, Peng Lei, Haijun Xu, Xunwen Xiao, Bin Tu, Qingdao Zeng
Summary: The structures of 2D self-assembled molecular networks formed by PBI derivatives with different functional groups were investigated, revealing different growth patterns depending on the substituents introduced. In particular, PBI with amide groups showed potential in forming a 2D porous molecular network through hierarchy self-assembly. The structure of the network could be adjusted by changing the concentration, as confirmed by density functional theory calculations.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yujie Song, Xiaokai Song, Xiaoke Wang, Jingzheng Bai, Fang Cheng, Chao Lin, Xin Wang, Hui Zhang, Jianhua Sun, Tiejun Zhao, Hiroki Nara, Yoshiyuki Sugahara, Xiaopeng Li, Yusuke Yamauchi
Summary: Two-dimensional (2D) layered metal-organic framework (MOF) nanoparticle (NP) superstructures were synthesized using an ice-templating strategy. The resulting carbon nanoparticle superstructures showed improved oxygen reduction activity compared to isolated carbon particles in alkaline media.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Tongtao Li, Xiuyang Xia, Guanhong Wu, Qingfu Cai, Xuanyu Lyu, Jing Ning, Jing Wang, Min Kuang, Yuchi Yang, Massimo Pica Ciamarra, Ran Ni, Dong Yang, Angang Dong
Summary: By manipulating the ligand grafting density, researchers have achieved the ordered coassembly of 0D nanocrystals and 2D nanosheets, resulting in a macroscopic, freestanding hybrid-dimensional superlattice structure.
Article
Chemistry, Multidisciplinary
Dmitry Baranov, Tara Sverko, Taylor Moot, Helena R. Keller, Megan D. Klein, E. K. Vishnu, Daniel M. Balazs, Katherine E. Shulenberger
Summary: In 2020, many scientific events were canceled due to the COVID-19 pandemic, leading to a lack of networking and knowledge exchange among scientists. To address this, a group of early career nanocrystal enthusiasts launched the virtual seminar series "News in Nanocrystals". This series attracted over 850 participants from 46 countries, emphasizing diversity and accessibility in its growth, providing lessons for fostering virtual scientific engagement during and post-pandemic.
Article
Chemistry, Multidisciplinary
Peiwen Liu, Jiaxiu Wang, Houjuan Qi, Tim Koddenberg, Dan Xu, Siyuan Liu, Kai Zhang
Summary: This study presents a novel method for self-assembly using chitin nanocrystals in capillaries. The fixed-boundary evaporation-induced self-assembly (FB-EISA) modality is employed, where a fixed air-liquid interface at the end of capillaries serves as the evaporation interface and initial deposition site of chitin nanocrystals. Through successive evaporation, continuous birefringent structures with a density gradient are generated, leading to the formation of cylindrical tubes.
Article
Nanoscience & Nanotechnology
Xiangyun Xi, Siyu Wan, Yuwei Deng, Yan Xia, Jingyu Xiao, Yangfei Cao, Xianwu Huang, Zhicheng Li, Dong Yang, Angang Dong, Tongtao Li
Summary: A microemulsion-based amphiphilic assembly technique has been developed for the fast and scalable preparation of two-dimensional nanosheets comprising nanocrystals. This method is applicable to a variety of nanocrystals and allows for the coassembly of different types of nanocrystals.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xinqiao Tang, Xiaolong Chang, Shuqi Zhang, Xinrui Li, Shuo Wang, Fanbao Meng
Summary: A new class of Fe3O4-based liquid-crystalline composites (Fe3O4@ILCPs) were synthesized via self-assembly using polyetheramine, liquid-crystalline monomer BSI, adipic acid, and magnetic nanoparticles Fe3O4. The relationship between structure, thermal properties, and magnetorheological properties was investigated by varying the content of cholesterol-based BSI. Higher BSI content resulted in more rigid mesogens and increased glass transition temperature and isotropization temperature. Fe3O4@ILCPs-based magnetorheological fluids (MRFs) exhibited Bingham flow characteristics under an external magnetic field. The aggregation between Fe3O4@ILCPs particles and shear stress and viscosity of the MRFs increased with a higher content of magnetic particles.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Jose M. Lopez-de-Luzuriaga, Miguel Monge, Javier Quintana, Maria Rodriguez-Castillo
Summary: Sub-200 nm plasmonic gold colloidosomes (Au CSs) are formed by self-assembly of spherical gold nanoparticles (Au NPs) around 4 nm in size at the interface of oleic acid (OA) nanodroplets in n-hexane. These Au CSs exhibit tunable surface, size, and shape-dependent collective plasmonic absorptions, resulting in interesting photothermal and stimuli-responsive properties.
NANOSCALE ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
Xin Zhou, Feng-Chun Hsia, Yanming Xue, Dai-Ming Tang, Ovidiu Cretu, Chao Zhang, Masanori Mitome, Yoshio Bando, Takayoshi Sasaki, Dmitri Golberg
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2019)
Article
Crystallography
Indrajit Saha, Takuma Nakamura, Ken Kanazawa, Hiroaki Nitani, Masanori Mitome, Shinji Kuroda
JOURNAL OF CRYSTAL GROWTH
(2019)
Article
Chemistry, Physical
Yusuke Ide, Satoshi Tominaka, Taiki Okuyama, Nao Tsunoji, Koji Ohara, Masanori Mitome, Tsuneji Sano, Yoshio Bando, Dmitri Golberg
Article
Chemistry, Multidisciplinary
Xin Zhou, Dai-Ming Tang, Masanori Mitome, Yoshio Bando, Takayoshi Sasaki, Dmitri Golberg
Article
Nanoscience & Nanotechnology
Xin Zhou, Dmitry G. Kvashnin, Yanming Xue, Dai-Ming Tang, Ovidiu Cretu, Masanori Mitome, Yoshio Bando, Pavel B. Sorokin, Takayoshi Sasaki, Dmitri Golberg
Article
Chemistry, Physical
Tang Shuai, Tang Jie, Chiu Ta-wei, Wataru Hayami, Jun Uzuhashi, Tadakatsu Ohkubo, Fumihiko Uesugi, Masaki Takeguchi, Masanori Mitome, Qin Lu-Chang
Article
Materials Science, Multidisciplinary
Toshio Osada, Toru Hara, Masanori Mitome, Shingo Ozaki, Taichi Abe, Kiichi Kamoda, Takahito Ohmura
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2020)
Article
Microscopy
Masanori Mitome
Summary: The phase retrieval technique based on TIE is widely used in microscopy to observe physical phenomena and improve image resolution. However, attention should be paid to the appearance of artifacts and solutions when applying this technique.
Article
Chemistry, Physical
Zihang Liu, Naoki Sato, Weihong Gao, Kunio Yubuta, Naoyuki Kawamoto, Masanori Mitome, Keiji Kurashima, Yuka Owada, Kazuo Nagase, Chul-Ho Lee, Jangho Yi, Koichi Tsuchiya, Takao Mori
Summary: Researchers have made significant advancements in thermoelectric materials by adding minor amounts of Cu to the Mg3Sb1.5Bi0.5 system, leading to improved thermoelectric performance and reduced thermal conductivity. Through grain-boundary engineering, the detrimental effects of thermally activated electrical conductivity were successfully eliminated. The fabricated thermoelectric module, when combined with a p-type alpha-MgAgSb-based material, showed promising potential for low-temperature thermoelectric harvesting.
Article
Chemistry, Physical
Ryota Akiyama, Ryo Ishikawa, Kazuhiro Akutsu-Suyama, Ryosuke Nakanishi, Yuta Tomohiro, Kazumi Watanabe, Kazuki Iida, Masanori Mitome, Shuji Hasegawa, Shinji Kuroda
Summary: This study investigates the magnetic proximity effect (MPE) at the interface between the topological crystalline insulator (TCI) SnTe and Fe using polarized neutron reflectometry. It is found that the ferromagnetic order can penetrate into the SnTe layer from the Fe interface, and this effect persists up to room temperature. The MPE induces coherent topological states without introducing disorder by doping magnetic impurities, which could pave the way for next-generation spintronics and quantum computational devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Cedric Bourges, Wenhao Zhang, Krushna Kumari Raut, Yuka Owada, Naoyuki Kawamoto, Masanori Mitome, Kazuaki Kobayashi, Jean-Francois Halet, David Berthebaud, Takao Mori
Summary: This study presents the first comprehensive theoretical and experimental investigations of Mn substitution within the CoSb3-skutterudite. The results provide evidence that Mn substitution stabilizes p-type conduction and highlights the formation of unexpected composite phases. This unexpected composite formation leads to a record-breaking power factor.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuai Tang, Jie Tang, Jun Uzuhashi, Tadakatsu Ohkubo, Wataru Hayami, Jinshi Yuan, Masaki Takeguchi, Masanori Mitome, Lu-Chang Qin
Summary: The research team reported a LaB6 nanoneedle structure as the next-generation field-emission point electron source, with high brightness, small energy spread, and high emission stability, meeting the requirements of electron microscopes.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Shuai Tang, Jie Tang, Ta-Wei Chiu, Jinshi Yuan, Dai-Ming Tang, Masanori Mitome, Fumihiko Uesugi, Yoshihiro Nemoto, Masaki Takeguchi, Lu-Chang Qin
Article
Chemistry, Multidisciplinary
Shuai Tang, Jie Tang, Ta-Wei Chiu, Jun Uzuhashi, Dai-Ming Tang, Tadakatsu Ohkubo, Masanori Mitome, Fumihiko Uesugi, Masaki Takeguchi, Lu-Chang Qin
Proceedings Paper
Energy & Fuels
T. Mori, T. Aizawa, S. Mitani, N. Tsujii, I. Ohkubo, T. Tyne, Y. Kakeluda, T. Baba, M. Mitome, N. Kawamoto, D. Golberg
18TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS
(2019)
