Article
Chemistry, Multidisciplinary
Junghyun Cho, Myonghoo Hwang, Minkyung Shin, Jinwoo Oh, Jinhan Cho, Jeong Gon Son, Bongjun Yeom
Summary: This study introduces a new method for fabricating chiral plasmonic nanowave patterns using the unidirectional alignment of block copolymer thin films and their tilted transfer combined with buckling processes. The fabricated chiral nanowave patterns exhibit mirror-reflected circular dichroism spectra.
Article
Chemistry, Physical
Ofer Burg, Rajashekharayya A. Sanguramath, Elisheva Michman, Noga Eren, Inna Popov, Roy Shenhar
Summary: Alternating metallic nanostructures have hybrid properties, useful for photonics and catalysis. Block copolymer films serve as versatile templates for creating periodic nanowire arrays. By controlling the penetration depth of metal precursors, different layers of copolymer cylinders can be impregnated with different metals. This leads to the formation of nanowires with alternating compositions and periodic arrangement on substrates after plasma etching.
Article
Physics, Fluids & Plasmas
Ramu Kumar Yadav, Rajeev Kapri
Summary: Using Monte Carlo simulations, hysteresis behavior in unzipping of a double-stranded block copolymer DNA with repetitive units is studied. The equilibrium force-temperature phase diagram for static force is found to be independent of DNA sequence, while results for periodic force case depend on the DNA sequence and the type of base pairs. Various shapes and sizes of hysteresis loops are observed, and the scaling of loop area is obtained in low- and high-frequency regimes.
Article
Nanoscience & Nanotechnology
Xujie Wang, Zhenlong Dou, Chi Zhang, FangFang Deng, XiaoLin Lu, ShuangShuang Wang, Li Zhou, Tao Ding
Summary: Anisotropy is important in various material systems, but creating and controlling it has been a challenge. Polarization-addressed anisotropy is attractive due to its controllability, simplicity, and accuracy, but only a few material systems can achieve it. In this study, a polarization-dependent anisotropic etching system made of Au@oligomer core-shell nanoparticles was established. The etching process is faster along the polarization direction, resulting in shape anisotropy of the particles. This system has advantages of high selectivity, controllability, and versatility, opening up new possibilities for on-chip nanofabrication.
Article
Chemistry, Physical
Trevor B. Demille, Robert D. Neal, Arin S. Preston, Zijuan Liang, Allen G. Oliver, Robert A. Hughes, Svetlana Neretina
Summary: This study demonstrates a novel liquid-phase seed-mediated synthesis method for fabricating arrays of gold nanoplates directly on substrate surfaces with high precision in position and orientation, resulting in highly faceted structures with a plasmonic response. The technique advances the integration of single-crystal nanomaterials with wafer-based technologies and provides leading-edge capabilities in defining large-area arrays of plasmonic structures.
Article
Polymer Science
Isaac Shin, Kyu Hyo Han, Seung Keun Cha, Sang Ouk Kim, Myungeun Seo
Summary: In this study, a functional block copolymer PMATA-b-PS was synthesized and used as a template for patterning Ag nanoarrays. The experiment successfully demonstrated the fabrication of Ag nanoparticle arrays through selective association with PMATA cylinders and removal of the organic polymer layer.
Review
Nanoscience & Nanotechnology
Stefano Kuschlan, Riccardo Chiarcos, Michele Laus, Francesc Perez-Murano, Jordi Llobet, Marta Fernandez-Regulez, Caroline Bonafos, Michele Perego, Gabriele Seguini, Marco De Michielis, Graziella Tallarida
Summary: In this work, block copolymer lithography and ultralow energy ion implantation are combined to create nanovolumes with high concentrations of periodically arranged phosphorus atoms in a p-type silicon substrate. The implanted dopants cause local amorphization of the silicon substrate. Phosphorus is then activated through a solid phase epitaxial regrowth process, preserving their spatial localization. The proposed approach allows for further investigations on modulating the dopant distribution within a silicon substrate at the nanoscale by changing the characteristic dimension of the self-assembled BCP film.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Nico Alleva, Katharina Eigen, David Y. W. Ng, Tanja Weil
Summary: We propose a simple and versatile method to purify and isolate DNA-polymer conjugates from various types of uncharged homo, random, or block copolymer families. Anion exchange chromatography is utilized for separation and recovery of excess unreacted polymer and oligonucleotide. With a high yield and efficient purification process, this method demonstrates its broad applicability for different polymer families and DNA block lengths.
Article
Polymer Science
I-Ming Lin, Chih-Chiang Hsu, Tsung-Chun Yu, Shiao-Wei Kuo, Wei-Tsung Chuang, Yeo-Wan Chiang
Summary: Nanohybrid materials with a hierarchical or homogeneous phase have been designed by controlling host-guest and guest-guest interactions, allowing for controlled formation and distribution of nanosheets.
Article
Polymer Science
Wei Chen, Peng Liu
Summary: The study focused on the synthesis of PEGylated dendritic polyurethane for ultrasound-triggered localized drug delivery. The nanomedicine showed excellent intracellular drug release performance in simulated tumor environment and enhanced tumor growth inhibition on HepG2 cells compared to free DOX.
Article
Chemistry, Multidisciplinary
Dongyoon Woo, Minkyeong Ban, Jisung Lee, Cheol-Young Park, Jinuk Kim, Seongseop Kim, Jinwoo Lee
Summary: Anisotropic lens-shaped nitrogen-doped carbon material with unidirectionally aligned mesopores was successfully synthesized through perpendicular block copolymer self-assembly at the polymer interface. This novel material shows great potential as a potassium-ion battery anode material, making it a promising candidate for the next-generation battery systems.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Taewan Kim, Meng Xu, Young Jun Lee, Kang Hee Ku, Do Joong Shin, Doh C. Lee, Se Gyu Jang, Hongseok Yun, Bumjoon J. Kim
Summary: The research utilizes self-assembly to form doubly alternating arrays of gold nanoparticles and CdSe/ZnS quantum dots within polystyrene-block-poly(4-vinylpyridine) BCP domains, creating fluorescence-switchable hybrid microspheres. Selective swelling of the particles in different solvents allows for controlled energy transfer and fluorescence switching, demonstrating potential applications in bioimaging, sensing, and diagnostics.
Article
Multidisciplinary Sciences
Liyang Shen, Gabriela Diaz Gorbea, Evan Danielson, Shuquan Cui, Christopher J. Ellison, Frank S. Bates
Summary: The management of the plastic industry is a significant challenge due to the accumulating waste and high costs of recycling. An alternative strategy has been developed to improve the mechanical properties of blended plastics using block copolymers, which can be produced inexpensively through industrial-scale polymerization methods. This approach provides a practical solution for recycling plastics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Polymer Science
Ki Hyun Kim, Mincheol Kim, Junsoo Moon, June Huh, Joona Bang
Summary: In this study, bottlebrush copolymers were designed as neutral additives to block copolymer (BCP) thin films, achieving vertically oriented microdomains through architectural effects. This concept could potentially be extended to various applications requiring polymer films with functional surfaces.
Article
Polymer Science
Justyna Swieton, Kamil Kaminski, Joanna Miklosz, Andrzej Mogielnicki, Bartlomiej Kalaska
Summary: Thrombosis is a major cause of death and finding safer and more effective treatments is crucial. Current anticoagulant medications have limitations, leading to the need for new alternatives. Block copolymers have shown promise as potential anticoagulants, with anionic and neutral blocks being the most promising candidates.
EUROPEAN POLYMER JOURNAL
(2023)
Review
Chemistry, Physical
Aijun Zhou, Weijie Cheng, Wei Wang, Qiang Zhao, Jian Xie, Wuxing Zhang, Hongcai Gao, Leigang Xue, Jingze Li
Summary: This review discusses the research progress on HCF-type cathode materials, focusing on their structural features, redox mechanisms, synthesis control, and modification strategies for improved performance in NIBs and KIBs. The use of HCFs in these battery systems offers specific capacity and voltage advantages, with ongoing efforts to enhance their material properties and promote future design of PBAs for advanced rechargeable batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Chao Li, Cheng Zhang, Jian Xie, Kuaibing Wang, Jingze Li, Qichun Zhang
Summary: A ferrocene-based metal-organic framework, Fe-2(DFc)(3), was synthesized and used as a cathode for LIB, exhibiting high energy density and superior electrochemical performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Zihao Wang, Jing Xue, Yuchi Liu, Jianxiong Xing, Aijun Zhou, Jingze Li, Wei Zou, Fu Zhou, Hong Li
Summary: In this study, a network of LixCu solid solution alloy nanowires was formed in Ni foam to address the limitations caused by the macropores in porous metal architectures, resulting in a three-component composite anode with exceptional cycling stability. The integration of LixCu nanowires significantly increased the active surface area and induced uniform Li deposition, while the hierarchical architecture further tuned the nucleation and growth behavior of Li, leading to long-term cycling stability even under high current rates.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Environmental
Zihao Wang, Tao Chen, Yuchi Liu, Jianxiong Xing, Aijun Zhou, Jingze Li, Wei Zou, Fu Zhou
Summary: A lithium metal composite anode with a LiF headspace has been prepared via a one-step thermal fusion method. The LiF particles provide storage space for lithium deposition from the cathode, maintaining structural stability of the anode. The LiF particles on the surface facilitate fast Li+ diffusion, suppress lithium dendrite growth, and induce uniform lithium deposition. As a result, the LiF headspace affixed composite anode shows significantly improved electrochemical performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Yuchi Liu, Tao Chen, Jing Xue, Zihao Wang, Jianxiong Xing, Aijun Zhou, Jingze Li
Summary: In this study, a three-dimensional Li22Sn5 alloy skeleton is integrated with Li metal phase via a phase-segregation process. The resulting SnLi90 anode exhibits a high specific capacity and stable cycling performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Zhengfeng Wang, Xinyi Dai, Haijun Chen, Fuzhong Wu, Yi Mai, Shuie Li, Yijing Gu, Jingze Li, Aijun Zhou
Summary: In this paper, a TiO2-LiF composite coating layer with very stable chemical properties on the LiCoO2 surface is prepared in one step. The coating effectively stabilizes the LCO surface composition and structure, resulting in improved electrochemical performance, including enhanced cycling stability and capacity retention.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Zihao Wang, Yuchi Liu, Jianxiong Xing, Zhicui Song, Aijun Zhou, Wei Zou, Fu Zhou, Jingze Li
Summary: This study introduces the doping of calcium into molten lithium to generate a lithium-calcium alloy, which forms a secondary network on the carbon cloth matrix with lithiophilic channels, enabling stable and uniform lithium deposition and improving the performance of lithium composite materials.
Article
Chemistry, Physical
Yunchao Liao, Zhengfeng Wang, Xinyi Dai, Haijun Chen, Fuzhong Wu, Jingze Li, Yi Mai, Shuie Li
Summary: Coating LiCoO2 with KAlF4 is an effective way to suppress structural collapse and surface side reactions at high voltage. The composite coating layer stabilizes the surface and improves lithium ion transport, resulting in improved electrochemical performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Yan-Dong Guo, Ji-Cheng Jiang, Jian Xie, Xin Wang, Jing-Ze Li, Dong-Huang Wang, Ai-Jun Zhou
Summary: In this study, a core-shell structured NaMnHCF cathode material was successfully synthesized using a coating strategy. The core-shell NaMnHCF exhibited improved electrochemical performance compared to the pristine material. The Cs-rich surface layer played a crucial role in enhancing the structural stability of NaMnHCF.
Article
Chemistry, Multidisciplinary
Bo Xiao, Qianchang Tang, Xinyi Dai, Fuzhong Wu, Haijun Chen, Jingze Li, Yi Mai, Yijing Gu
Summary: Al-doping and in situ Al2O3 coating can greatly enhance the cycling stability and rate performance of LiCoO2 thin-film electrodes.
Article
Chemistry, Physical
Zhicui Song, Yuchi Liu, Zihao Wang, Jianxiong Xing, Chaohui Wei, Wei Zou, Aijun Zhou, Jingze Li
Summary: Infinite volume expansion and uncontrolled lithium dendrite growth are the main obstacles for the commercial application of lithium metal anodes. A novel lithium metal host, CNT-CoP@NC, derived from ZIF-67, is designed to improve lithiophilicity and reduce nucleation barrier, leading to homogeneous nucleation and smooth deposition of metallic lithium, thus suppressing dendrite growth. Furthermore, self-generated CNTs arrays reduce local current density and the hollow structure of CNT-CoP@NC enhances anode space utilization. With these modifications, a high Coulombic efficiency for more than 400 cycles and an extended lifespan of 1,700 hours are achieved, indicating the great potential of this design for practical applications.
Article
Chemistry, Physical
Zihao Wang, Zhicui Song, Yuchi Liu, Jianxiong Xing, Chaohui Wei, Wei Zou, Jingze Li
Summary: Constructing an artificial solid electrolyte interphase (SEI) layer is an effective strategy for solving uncontrolled Li dendrite growth. In this study, a hybrid layer of a LiZn alloy and a polyethylene oxide (PEO) polymer was developed to achieve a dendrite-free Li metal anode surface and significantly improve cycling stability.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yuchi Liu, Zhicui Song, Zihao Wang, Jianxiong Xing, Wei Zou, Jingze Li
Summary: In this study, bamboo-shoot like particles of highly lithiophilic Li22Sn5 intermetallic compound were successfully anchored on a carbon cloth host, leading to enhanced electrochemical performance of Li anodes. The uniform Li deposition and suppression of Li dendrites were achieved by the strong interaction between Li22Sn5 and Li, resulting in improved stability and higher specific capacity in Li metal batteries.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Environmental
Yuanyuan Zhang, Hongyi Wang, Yuqi Yang, Jia Xie, Qijiu Deng, Wei Zou, Aijun Zhou, Jingze Li
Summary: This study introduces succinonitrile as an organic plasticizer in poly(ethylene oxide) polymer electrolyte to enhance its ionic conductivity at room temperature. Moreover, electrospun nanofibers framework of polyacrynitrile and dense Li-Sn alloy layer on the anode surface are employed to improve the interface stability and cycling performance of the solid-state Li battery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zihao Wang, Qijiu Deng, Zhicui Song, Yuchi Liu, Jianxiong Xing, Chaohui Wei, Yuehui Wang, Jingze Li
Summary: A dual-phase Li-Cu alloy with a unique bilayer structure has been prepared using a thermal infiltration method. The alloy layer at the bottom acts as a scaffold, and the upper layer serves as a lithiophilic material for Li deposition. This bilayer architecture ensures stable Li metal deposition and excellent cycling stability and rate capability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
