Article
Chemistry, Multidisciplinary
Nadir Hussain, Mujahid Mehdi, Muhammad Yousif, Aizaz Ali, Sana Ullah, Sajid Hussain Siyal, Tanweer Hussain, Ick Soo Kim
Summary: Recycled polyethylene terephthalate (r-PET) nanofibers were successfully fabricated using waste plastic bottles and copper was deposited on the surface to create high-performance conductive nanofibers with excellent electrical resistance and good mechanical strength.
Article
Chemistry, Physical
Hyeonsu Woo, Suhyeon Kim, Seungbin Yoon, Kanghyun Kim, Geon Hwee Kim, Taechang An, Geunbae Lim
Summary: In this study, a conductive nanofiber network was fabricated on a flexible substrate using electrospinning, and copper heaters were materialized through electroless deposition on the nanofiber network. The optimized FTHs demonstrated high transparency and conductivity, with uniform temperature distribution across their entire area. The developed fabrication method is simple, applicable for large-area processes, and can be easily extended to various fields as a fundamental technology.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Shihui Yu, Junjun Li, Le Zhao, Baoming Gong, Lingxia Li
Summary: High-performance FTCEs with folding-insensitivity are achieved by embedding copper nanowires into polymethyl methacrylate, demonstrating high transmittance, low resistance, and stable conductivity after folding. The film shows excellent stability and has great potential for applications such as defrost, antifog, and LED devices.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Materials Science, Multidisciplinary
Quoc Hoan Tran, Duc Thanh Chu, Van Hoan Hoang, Sy Hieu Pham, Philippe Leclere, Thi Thu Hien Nguyen, Duc Huy Tran, Quang Trung Do, Anh Tuan Pham, Duy Cuong Nguyen
Summary: The study showed that using scotch tape on the surface of silver nanowire transparent conductive electrodes can significantly reduce sheet resistance, while maintaining transmittance. This method may improve electrical properties by enhancing contact between AgNWs.
Article
Nanoscience & Nanotechnology
Jun Cheng, Xi Zhang, Zhuanqing Yang, Gang Xiang
Summary: ITO nanofibers prepared by MPC demonstrate excellent electrical and optical properties, showing great potential for applications in electronics and optics.
Article
Nanoscience & Nanotechnology
Se Yun Kim, Weon Ho Shin, Hyun-Sik Kim, Doh Won Jung, Mi-Jeong Kim, Kwanghee Kim, Jong Wook Roh, Sungwoo Hwang, Jongmin Lee, Daejin Yang, Hiesang Sohn, Seong Heon Kim, Changhoon Jung, Eunae Cho, Dong-Jin Yun, Jinhong Kim, Young Jin Cho, Sang-Il Kim, Kyu Hyoung Lee, Chan Kwak, Dong-Su Ko
Summary: This study introduces a rational design and fabrication process for a silver nanowire-based transparent conductive electrode, which significantly improves the electrode performance through hybridization with RuO2 nanosheets and silver nanoparticles. After 200,000 bending cycles at a curvature radius of 1 mm, the resistance change of this hybrid electrode is only 8.8%, making it feasible for use in foldable devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Mahesh A. Shinde, Haekyoung Kim
Summary: The study improved the stability and conductivity of AgNWs by applying BTA and TiO2:Cs particles onto AgNW/PET, forming a novel AgNW/BTA/TiO2:Cs/PET structure. It showed exemplary optoelectrical properties and stable electrical performances under different environmental conditions, demonstrating the effectiveness of BTA and TiO2:Cs in enhancing the properties of AgNW films.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Qixuan Xiang, Rahul Navik, Huijun Tan, Yaping Zhao
Summary: In this study, curved copper nanowires with high aspect ratio were successfully synthesized using sodium formate as the surface passivation layer. The use of formate greatly improved the oxidation resistance of the nanowires. Transparent conductive electrodes and transparent flexible heaters were fabricated, showing the potential of copper nanowires in electrochromic and optoelectronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Donghong Wang, Jinfeng Sun, Qi Xue, Qing Li, Ying Guo, Yuwei Zhao, Ze Chen, Zhaodong Huang, Qi Yang, Guojin Liang, Binbin Dong, Chunyi Zhi
Summary: The research focuses on the development of flexible wearable batteries using metal-conductive cloths, achieving high conductivity and coverage of active materials while maintaining softness, demonstrating excellent performance and high flexibility.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Dongxu Huang, Mingqi Huang, Deliang Sun, Bincan Liu, Rui Xuan, Jinshan Liu, Rong Sun, Jinhui Li, Guoping Zhang, Daquan Yu
Summary: This study successfully improved the adhesion strength between copper and glass by preparing ZnO coating on the glass surface, achieving a high adhesion strength of up to 5B. Furthermore, a specific chemical was used to create an optional hydrophobic surface, allowing for selective electroless copper plating patterns.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Polymer Science
Golnaz Taghavi Pourian Azar, Sofya Danilova, Latha Krishnan, Yirij Fedutik, Andrew J. Cobley
Summary: The electroless copper plating of textiles is a promising method for producing high-reliability e-textiles, sensors, and wearable electronics. Optimizing the printing design, direction, and number of printing cycles can result in metallized patterns with desired conductivity, stiffness, and laundering durability.
Article
Materials Science, Multidisciplinary
Houchao Zhang, Xiaoyang Zhu, Junyi Zhou, Hongke Li, Zhenghao Li, Luanfa Sun, Rui Wang, Fan Zhang, Quan Xu, Jiawei Zhao, Youqi Huang, Wenchao Yang, Guangming Zhang, Hongbo Lan
Summary: A simple and cost-effective process for fabricating high-performance flexible transparent electrodes (FTEs) with ultra-fine embedded Cu/Ag(shell)-P4VP(core) conductive grid is proposed. The produced FTE exhibits excellent properties, such as ultra-fine line width, low surface roughness, excellent mechanical stability, and good environmental stability. The flexible electroluminescent device fabricated with this FTE shows great potential for flexible optoelectronic applications.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Manufacturing
Nathan Lazarus, Joshua B. Tyler, Jorge A. Cardenas, Brendan Hanrahan, Harvey Tsang, Sarah S. Bedair
Summary: This study demonstrates a new electroless plating method for metallizing plastic 3D printed parts without the use of expensive precious metal catalysts. By electrolessly plating conductive composite filaments, loaded with metal or other conductive particulate, with exposed particles serving as nucleation sites, the researchers achieved successful metalization of plastic parts. The use of a flash of high energy white light to ablate the polymer surface and expose a higher density of metal particulate was also shown to accelerate the plating process. Selective plating using a dual extruder 3D printer was utilized to reduce resistance. The results of this study highlight the importance and potential of this new electroless plating method for the fabrication of conductive composite materials.
ADDITIVE MANUFACTURING
(2022)
Article
Nanoscience & Nanotechnology
I. Hong Ho, Ching-Wen Chang, Yen-Lin Chen, Wan-Yu Chang, Ting-Jui Kuo, Yu-Jung Lu, Shangjr Gwo, Hyeyoung Ahn
Summary: This study successfully grows ultrathin TiN films with excellent surface morphology and high optical transparency using nitrogen plasma-assisted molecular-beam epitaxy (MBE) method. The films exhibit good dielectric properties and electrical conductivity, making them suitable for robust, low cost, and large-area transparent conductive electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Yoo-Bin Kwon, Jae-Ho Kim, Young-Kwan Kim
Summary: An efficient protection strategy has been developed to enhance the adhesion force and stability of silver nanowire-based transparent electrodes. Chitin nanofibers (CNFs) and alkali lignin (AL) are assembled on the surface of AgNW TEs through layer-by-layer (LBL) assembly. The resulting CNF/AL bilayer-coated TEs show improved adhesion force and durability without compromising their electrical conductivity and transmittance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Xiaochao Xia, Tianle Gao, Feng Li, Ryota Suzuki, Takuya Isono, Toshifumi Satoh
Summary: Switchable polymerization has potential for synthesizing sequence-controlled macromolecules similar to natural biopolymers, but is limited to three-and four-component systems. We expanded its scope to five-component systems using a reactivity gradient among 12 monomers. Different copolymerizations were achieved using a catalyst, allowing for the synthesis of gradient and block copolymers. Anhydride reactivity was predicted using 13C NMR chemical shifts. This comonomer library allows for the prediction and preparation of more complex copolymer structures.
Article
Polymer Science
Huan Li, Yingying Li, Yudan Wang, Lijia Liu, Hongxing Dong, Chunhong Zhang, Toshifumi Satoh
Summary: In this study, a Lys-BPEA crosslinker was synthesized using primary amines rich in lysine end groups. An antibacterial self-healing hydrogel (PAA/Lys-BPEA) was prepared by introducing polyamine Lys-BPEA into PAA via ionic bonding and electrostatic interaction. The PAA/Lys-BPEA hydrogel exhibited excellent antibacterial and self-healing properties, making it an ideal choice for the design of smart self-healing devices and antibacterial surface coatings.
Article
Polymer Science
Ryohei Sato, Atsuo Utagawa, Koji Fushimi, Feng Li, Takuya Isono, Kenji Tajima, Toshifumi Satoh, Shin-ichiro Sato, Hiroshi Hirata, Yoshihiro Kikkawa, Takuya Yamamoto
Summary: The redox behaviors of macrocyclic molecules with an entirely pi-conjugated system were investigated in this study. Cyclic P3HT with different degrees of polymerization (DPn) were synthesized, and its unique redox behaviors were compared with linear P3HT. Cyclic P3HT showed a decrease in HOMO level and greater stability during cyclic voltammetry measurement, indicating stronger dicationic properties due to polaron-polaron interactions.
Article
Chemistry, Analytical
Rajat Subhra Karmakar, Chia-Pei Chu, Chia-Lin Li, Chun-Hway Hsueh, Ying-Chih Liao, Yen-Wen Lu
Summary: Skin-inspired flexible tactile sensors with interfacial microstructure have been developed on cellulose fiber substrates for subtle pressure applications. The sensors consist of two cellulose fiber substrates with conductive microscale structures, emulating the spinosum between the dermis and epidermis layers of human skin. The sensors exhibit high sensitivity and fast recovery time in the subtle pressure range, making them suitable for healthcare and posture feedback in guitar playing.
Article
Chemistry, Multidisciplinary
Erika Terada, Takuya Isono, Toshifumi Satoh, Takuya Yamamoto, Toyoji Kakuchi, Shinichiro Sato
Summary: Recently, temperature-responsive polymers tethered to oligooxyethylene side chains terminated with alkyl groups were experimentally investigated. Molecular dynamics simulations were used to study aqueous solutions of poly(glycidyl ether)s with different numbers of oxyethylene units. The thermal responses of chain extensions, hydrogen bond recombination, and water-solvation shells were analyzed. The phase-transition temperature was not directly related to the polymer-chain extensions, but the temperature response of the water-solvation shell around the alkyl group showed a noticeable correlation. The relationship between TCRP and TCLP was found to be affected by polymer-chain fluctuation.
Article
Nanoscience & Nanotechnology
Chun-Kai Chen, Jin-Chieh Ho, Chih-Chien Hung, Wei-Cheng Chen, Toshifumi Satoh, Wen-Chang Chen
Summary: In this study, an environmentally friendly floating-gate electret made entirely from biomass-derived materials was designed for photonic memories. The photosensitive hemin and its derivative protoporphyrin IX (PPIX) were successfully embedded in a polylactic acid (PLA) matrix, affecting the photosensitivity and charge-trapping capacity of the prepared electrets. The device exhibited a memory ratio of up to 2.5 x 10(7) with photo-writing-electrical-erasing characteristics, and sustained memory performance for at least 10(4) s after light removal was observed on a bio-derived dielectric flexible substrate.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hien Thi Phan, Shoko Furukawa, Koto Imai, Hiroya Tomita, Takuya Isono, Toshifumi Satoh, Ken'ichiro Matsumoto
Summary: Bacterial polyhydroxyalkanoate (PHA) synthase PhaC(AR) and its mutated variants were used to synthesize block copolymers with poly(d-lactate) (PDLA) segments. Beneficial mutations N149D and F314H increased the incorporation of D-lactate (LA) units, resulting in the synthesis of P(3HB)-b-PDLA and P(3HHx)-b-PDLA. This study demonstrates a new method for the synthesis of block copolyesters with isotactic PDLA segments from renewable resources using engineered polyester synthase.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Yamato Ebii, Yoshinobu Mato, Feng Li, Kenji Tajima, Takuya Yamamoto, Takuya Isono, Toshifumi Satoh
Summary: In this study, multicyclic polystyrene (mc-PS) was successfully synthesized through the cyclopolymerization of alpha,omega-dinorbornenyl end-functionalized PS macromonomers mediated by the Grubbs third-generation catalyst. The number of cyclic units in the obtained mc-PS was controlled by adjusting the macromonomer-to-G3 ratio, with a maximum of 239 units achieved. The developed cyclopolymerization strategy provides a new approach for the synthesis of multicyclic polymers and has significant implications for fundamental studies and material applications.
Article
Materials Science, Multidisciplinary
Chia-Hao Tsai, Yan-Cheng Lin, Wei-Ni Wu, Shih-Hung Tung, Wen-Chang Chen, Cheng-Liang Liu
Summary: The chemical design of side chains and the physical control of molecular aggregation on conjugated polymer semiconductors have been demonstrated to be effective strategies for achieving efficient doping and charge transport in preparing doped conjugated polymer thermoelectric devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Wei-Ni Wu, Kei-ichiro Sato, Jun-Hao Fu, Yi-Tsu Chan, Jhih-Min Lin, Shih-Huang Tung, Tomoya Higashihara, Cheng-Liang Liu
Summary: This study systematically investigates the effects of vinyl linkers in polythiophene-based semiconductors on their structural properties, thin film morphologies, and thermoelectric performance. The introduction of vinyl groups enhances the miscibility with the dopant and improves the doping efficiency, resulting in higher electrical conductivity and power factor.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Yaodong Wang, Yudan Wang, Lijia Liu, Kexiao Sang, Chunhong Zhang, Toshifumi Satoh
Summary: Metal-free catalysts have emerged as an important research focus in catalysis due to the growing concern over heavy metal pollution. In this study, a heterogeneous catalyst, l-Pro-l-Pro-l-Phe-l-Phe-OMe, was synthesized by connecting an aromatic amino acid dipeptide (l-Phe-l-Phe-OMe) with a proline dipeptide (l-Pro-l-Pro) through solid phase synthesis. The catalyst's structure was characterized using SEM, XRD, NMR, and FTIR spectroscopy, with X-ray diffractometry revealing a rod crystal structure. Furthermore, l-Pro-l-Pro-l-Phe-l-Phe-OMe exhibited superior catalytic activity compared to a homogeneous small molecule catalyst (high enantioselectivity, ee > 97%) in heterogeneous asymmetric aldol reactions and demonstrated good recyclability.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Takuya Isono, Ema Baba, Shunma Tanaka, Ken Miyagi, Takahiro Dazai, Feng Li, Takuya Yamamoto, Kenji Tajima, Toshifumi Satoh
Summary: By direct post-polymerization modification, commercial PS-b-PMMA can be successfully transformed into ordered microphase-separated structures with a periodicity as low as approximately 16 nm. The installation of adamantyl group not only increases incompatibility with the PMMA block, but also improves thermal stability, glass transition temperature, and etching contrast.
Article
Polymer Science
Yaodong Wang, Lijia Liu, Yudan Wang, Kexiao Sang, Chunhong Zhang, Toshifumi Satoh
Summary: An l-phenylalanine dipeptide monomer was cross-linked to form a chiral porous polymer skeleton, which was then modified with l-proline to produce a catalyst with a higher specific surface area. The catalyst exhibited improved catalytic efficiency and selectivity in asymmetric Michael addition and Mannich reactions. The recyclable and cost-effective nature of the catalyst makes it an effective strategy for preparing high-performance asymmetric catalysts.
Article
Polymer Science
Kai Chen, Chun -Yu Chen, Hsin-Lung Chen, Ryoya Komaki, Nao Kawakami, Takuya Isono, Toshifumi Satoh, Du -Yuan Hung, Ying-Ling Liu
Summary: The molecular architecture and configuration of sugar-based block copolymers have significant effects on their self-assembly behavior. In this study, we observed the formation of double gyroid and hexagonal perforated layer structures in monodisperse maltose-solanesol block copolymers with different architectural configurations. The oligomeric nature of the copolymers amplified the role of the configuration prescribed by the substituted positions of the block chains.
Article
Nanoscience & Nanotechnology
Chia-Yu Lee, Yen-Ting Lin, Shao-Huan Hong, Chia-Hsin Wang, U-Ser Jeng, Shih-Huang Tung, Cheng-Liang Liu
Summary: This study successfully prepared mixed ionic-electronic conducting thermoelectric materials, fabricated via chemical cross-linking to form a double network. The presence of carbon nanotubes and polyaniline improved the electrical properties of the hydrogel. The optimum device exhibited remarkable ionic conductivity and ionic Seebeck coefficient, achieving significant advancements in the field of gel-state organic thermoelectric materials. Furthermore, a wearable module was created by embedding the hydrogel into a PDMS mold, demonstrating high power density.
ACS APPLIED MATERIALS & INTERFACES
(2023)
