Article
Chemistry, Multidisciplinary
Ahreum Choi, Taewon Kim, Min-Ho Kim, Seok Woo Lee, Young Hwa Jung, Hyun-Wook Lee
Summary: In this study, the authors demonstrate how the fast reaction rate activates charge redistribution in manganese hexacyanomanganates, which helps alleviate the strong Jahn-Teller effect of high-spin Mn(III) by solving the unequal number of electrons in e(g) orbitals. As a result, the dissolution of Mn is effectively suppressed, leading to improved long-term cyclability in an aqueous electrolyte.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Matthias Rebber, Malte Trommler, Irina Lokteva, Samanehalsadat Ehteram, Andreas Schropp, Sandra Koenig, Michael Froeba, Dorota Koziej
Summary: In this article, TiO2 nanoparticle-based gels and plasmonic Au nanorods are used as inks for 3D printing, enabling the production of multifunctional aerogels with control over nano-, micro-, and macroscopic length scales.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Huaizhi Liu, Guanhua Zhang, Lei Wang, Xianan Zhang, Zexu Zhao, Fengjun Chen, Lijun Song, Huigao Duan
Summary: The increasing demand for miniaturization of energy storage devices, especially microbatteries with high energy density and high rate performance, has led to the development of a three-dimensional nanocone array-engineered aqueous ZnMn microbattery. This microbattery addresses issues of safety and environmental concerns associated with conventional alkaline microbatteries, and offers enhanced electrical conductivity, wettability, and ion diffusion distance through its unique 3D structure. With a surface capacitive behavior dominating its cycling process, the aqueous ZnMn microbattery shows promise in driving portable microelectronic devices and integrated microsystems due to its high areal capacity and superior rate capability.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Seoungkyun Kim, Dong Hee Kim, Jinhwan Cho, Jaeyun Kim, Inchan Kwon
Summary: Researchers have developed a booster that can deliver drugs to specific blood vessels, using a polymeric hydrogel made up of multiple monomers as the building blocks.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiaxin Ma, Shuanghao Zheng, Liping Chi, Yu Liu, Ying Zhang, Kai Wang, Zhong-Shuai Wu
Summary: This study demonstrates planar and flexible 3D-printed rechargeable sodium-ion microbatteries (NIMBs) with high-density and enhanced rate performance using thick conductive microelectrodes. The 3D-printed NIMBs exhibit superior areal capacity and long-term cycle life, while maintaining mechanical flexibility. This research opens a new avenue for the development of high-performance NIMBs capable of powering flexible microelectronics.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhiqian Cao, Haibo Hu, Derek Ho
Summary: Micro-redoxcapacitors, a new device category, effectively resolve the dilemma between batteries and capacitors, providing high capacity and rate performance simultaneously.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Geonwoo Kang, Minkyung Kim, Huisuk Yang, Jiwoo Shin, Jeeho Sim, Hyeri Ahn, Mingyu Jang, Youseong Kim, Hye Su Min, Hyungil Jung
Summary: In this article, a novel applicator is developed to efficiently insert dissolving microneedle patches into the skin with optimized force and velocity. This applicator is cost-competitive and easy to use with thumb-force operation. The study shows that the microneedle and applicator system can generate significantly higher antibody levels compared to intramuscular injection when using a model antigen.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Edurne Redondo, Jose Munoz, Martin Pumera
Summary: 3D printing of carbon-based nanocomposites combines the electrical properties of carbon additives and the benefits of thermoplastics for rapid and low-cost manufacturing of customised electronic devices. A simple eco-friendly wet-chemical post-treatment using reducing agents like ascorbic acid or sodium borohydride can activate the 3D printed electronic devices effectively. Ascorbic acid and sodium borohydride are found to be the most effective chemicals for achieving electrically active devices while maintaining the shape and structure of the printed carbon objects.
Article
Chemistry, Multidisciplinary
Samantha F. Douman, Miren Ruiz De Eguilaz, Loanda R. Cumba, Stephen Beirne, Gordon G. Wallace, Zhilian Yue, Emmanuel I. Iwuoha, Robert J. Forster
Summary: This study describes the fabrication and electrochemical properties of a 3D printed titanium electrode array. Deposition of a thin gold layer significantly increases the electron transfer rate constant, leading to reversible voltammetry of ferrocyanide. The intensity of electrochemiluminescence is dramatically enhanced in gold-coated arrays.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jiheon Kim, Seong-Jun Kim, Euiyeon Jung, Dong Hyeon Mok, Vinod K. Paidi, Jaewoo Lee, Hyeon Seok Lee, Yunseo Jeoun, Wonjae Ko, Heejong Shin, Byoung-Hoon Lee, Shin-Yeong Kim, Hyunjoong Kim, Ji Hwan Kim, Sung-Pyo Cho, Kug-Seung Lee, Seoin Back, Seung-Ho Yu, Yung-Eun Sung, Taeghwan Hyeon
Summary: In this study, the authors investigate the structural understanding of uniform-sized spinel-type MMO nanoparticles and their contribution to improved oxygen reduction reaction (ORR) activity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Fabian M. Schuett, Sven J. Zeller, Maximilian J. Eckl, Felix M. Matzik, Maren-Kathrin Heubach, Tanja Geng, Johannes M. Hermann, Matthias Uhl, Ludwig A. Kibler, Albert K. Engstfeld, Timo Jacob
Summary: A simple method for fabricating stable 3D-printed micro-reference electrodes using polyvinylidene fluoride is proposed in this study, showing good chemical inertness in strong acids, bases, and non-aqueous solvents. Experimental results demonstrate the versatility and stability of this new class of micro-reference electrodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
[Anonymous]
Summary: Flexible PEDOT:PSS micropillar arrays were fabricated and their application in neural interfaces was investigated. The results demonstrated that these soft micropillars can support the adhesion, growth, and differentiation of cells, as well as influence the direction of neurite outgrowth.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Electrochemistry
Qiuying Xia, Jinshi Wang, Yu Cai, Wei Liu, Chuanzhi Wu, Yifei Guo, Feng Zan, Jing Xu, Hui Xia
Summary: In this work, a 3D CuO nanowire array electrode with controllable thickness was prepared on a conductive substrate using a facile wet chemistry route, and a high-performance CuO/LiPON/Li thin film lithium microbattery was constructed. The CuO/LiPON/Li microbattery showed a large areal capacity (92 muAh cm(-2) at 15 mu A cm(-2)), high rate capability (11 muAh cm(-2) at 960 mu A cm(-2)), and good cycle performance (nearly no capacity loss after 70 cycles), due to the abundant electrode/electrolyte interface contact, shortened ion diffusion length, and accommodation capability for volume change. This work demonstrates the great potential of preparing 3D electrodes by wet chemistry routes for high-performance thin film lithium microbatteries.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Engineering, Biomedical
[Anonymous]
Summary: This article discusses the construction of a hydrogel scaffold with specific functions using 3D printing technology, which can accelerate bone healing.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Chemistry, Analytical
Yuanqing Zhao, Mengle Yang, Shuang Rong, Xinming Wang, Huiyuan Ma, Haijun Pang, Lichao Tan, Keqing Gao
Summary: Five new polyoxotungstates-based NiII/CoII-containing 3D inorganic-organic hybrid compounds were synthesized and explored as pseudocapacitive electrode materials. These compounds exhibit high specific capacitance and low capacitance loss at high charge/discharge current density, with CoW12-Ni8 showing the best performance and potential application in energy functional materials.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
