Article
Chemistry, Physical
Kyunghyeon Lee, Byeong-Hyeok Sohn
Summary: Through experiments, we confirmed the step-growth mechanism for the formation of supracolloidal chains from PS-b-P4VP patchy micelles. Based on this mechanism, we were able to achieve high degrees of polymerization early in the reaction by increasing the initial concentration and form cyclic chains by diluting the solution. We also accelerated colloidal polymerization by increasing the ratio of water to DMF in the solution and patch size by using PS-b-P4VP with a larger molecular weight.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Vahid Jabbari, Michal Sawczyk, Azadeh Amiri, Petr Kral, Reza Shahbazian-Yassar
Summary: In this study, the formation and evolution of phosphatidylcholine-based liposomes were investigated in real-time using graphene liquid cell-transmission electron microscopy (GLC-TEM). The growth, fusion, and denaturation steps of liposomes were revealed. The study showed that complex lipid aggregates resembling micelles formed initially, which randomly merged and captured water to form small proto-liposomes. The liposomes grew in size until their membrane became convex and free of redundant phospholipids. Liposomes were found to fuse through lipid bilayers docking and the formation of a fusion pore. Denaturation of liposomes involved structural destabilization and membrane deformation followed by the leakage of encapsulated liquid.
Article
Polymer Science
Laihui Xiao, Sam J. Parkinson, Tianlai Xia, Phillippa Edge, Rachel K. O'Reilly
Summary: Anisotropic materials have potential applications in various fields, but the current method of platelet preparation is inefficient. To address this, this study demonstrates the use of continuous flow reactors to improve the production of size-controllable platelets with improved size and dispersity.
Article
Chemistry, Physical
Dening Chang, Chenglin Du, Jinyu Liu, Wanqing Sun, Yuxuan Su, Dejin Zang, Teng Liu
Summary: In recent years, the structure-property relationship of block copolymers in administrable drug delivery has been a topic of interest. This study investigated the self-assembling behavior of four block copolymers with different hydrophobic modification groups and found that the enhancement of hydrophobicity led to the formation of smaller micelles or vesicles and improved solubilization and release capacities for hydrophobic drugs. The findings highlight the potential application of hydrophobic modification in sustained release drug carriers.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Applied
Feng Shen, Hao Ling, Wenjiao Ge, Yang Yang, Xiaoying Wang, Junli Ren, Xiaohui Wang
Summary: A series of amphiphilic hemicellulose-based grafting polymers were synthesized by esterification with various hydrophobic chain fatty acids, forming hard sphere micelles in aqueous solution. These micelles exhibit potential as drug carriers with controlled release behavior.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Arifa Shaheen, Arun Dhanagar, Rabia Arif
Summary: The interaction between anionic quantum dots (QDs) and a gemini surfactant [C(16)Im-3OH-ImC(16)]Br-2 in water resulted in luminescent self-assemblies. The surfactant self-associates into micelles before engaging with the QDs. The addition of the surfactant to the QD solution led to the formation of supramolecular and vesicle structures, with self-assembled QDs inside the spherical vesicles exhibiting luminescence.
Article
Chemistry, Multidisciplinary
Ryo Miyazaki, Mahmuda Nargis, Abu Bin Ihsan, Noriyuki Nakajima, Masahiro Hamada, Yasuhito Koyama
Summary: The study investigated the self-assembly behaviors of alpha-Galactosyl ceramide (GalCer) and its aglycon in water, revealing the significant role of the glycon moiety in inhibiting the formation of second associates and in plasticizing the hydrophobe. The results provide insights for evaluating the self-assembly behaviors of other natural glycosides for supramolecular and pharmacological applications in the future.
Article
Polymer Science
Hong Qiu, Xiaopeng Chen, Xiaojie Wei, Jiezhen Liang, Dan Zhou, Weixiang Tang, Linlin Wang
Summary: An environmentally friendly oil-soluble surfactant colophony xylitol ester (CXE) was successfully synthesized and found to have high thermal stability and effective reduction of surface tension in various organic solvents. Additionally, CXE self-assembled into micelles, vesicles, and heteromorphic vesicles in different organic solvents. The thermodynamic parameters of aggregate formation were investigated through critical micelle concentration curves at different temperatures.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Eleanor Raphael, Matthew J. Derry, Michael Hippler, Steven P. Armes
Summary: Polymerization-induced self-assembly (PISA) is used to design hydrogen-bonded poly(stearyl methacrylate)-poly(benzyl methacrylate) [PSMA-PBzMA] worm gels, with the ability to tune the storage modulus (G') by adjusting the proportion of end-groups on the PSMA chains. Two complementary routes are employed for achieving this tunability. SAXS and rheology studies offer detailed insights into the inter-worm interactions and physical behavior of these hydrogen-bonded worm gels.
Article
Chemistry, Multidisciplinary
Arunavo Chatterjee, Pradipta Purkayastha
Summary: This article discusses the impact of chemical interfaces on the dynamics of small-molecule guests, and explores specific and interesting phenomena and future prospects.
Article
Polymer Science
Alexandros E. Alexakis, Olivia R. Wilson, Eva Malmström
Summary: The combination of RAFT polymerization and PISA can produce monodisperse nanolatexes. This study demonstrates the synthesis of reproducible bimodal nanolatexes by extending protonated PDMAEMA with MMA in water and provides the first imaging data. The bimodality is induced by the hydrophilic Z-group of the RAFT agent, which has been reported to cause bimodal molecular weight distributions in RAFT-mediated PISA. The advantages of such nanolatexes in coating applications are briefly explored, including their one-pot synthesis, higher contact angle against water when adsorbed on cellulose filter paper, and morphological arrangement dependent on the drying protocol.
Article
Chemistry, Multidisciplinary
Ramona Mhanna, Yan Gao, Isaac Van Tol, Ela Springer, Ning Wu, David W. M. Marr
Summary: Magnetic colloidal chains are a versatile microrobotic system with promising applications, known for their biocompatibility and ease of manipulation under magnetic fields. The synthesis of these chains involves controlling their quality, length, and flexibility through various parameters such as linker concentration, reaction temperature, and magnetic field strength. The research findings show that the fabrication process of these chains can be accurately described by the Flory-Schulz model, resembling step-growth polymerization. Furthermore, under optimized conditions, long and flexible colloidal chains with significantly reduced bending modulus compared to previous studies have been successfully synthesized, demonstrating potential for investigating actuation, assembly, and folding behaviors of these polymer analogues.
Article
Multidisciplinary Sciences
Zhihua Cheng, Matthew R. Jones
Summary: The study reports the self-assembly of 2D chiral superlattices from achiral tetrahedron-shaped building blocks, explains the formation mechanism, and lays the scientific foundation for the high-throughput assembly of planar chiral metamaterials.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jared I. Bowman, Cabell B. Eades, Maria A. Vratsanos, Nathan C. Gianneschi, Brent S. Sumerlin
Summary: Polymerization-induced self-assembly (PISA) is a powerful technique for producing block copolymer nanostructures, and ultrafast photoiniferter PISA can be used to quickly create various nanostructures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Physical
Chen Wang, Hanying Zhao
Summary: Surface structures play a crucial role in the practical applications of materials. The synthesis of polymer brushes on a solid surface is an effective method for tuning surface properties. The fabrication of polymer brush-based surface nanostructures has greatly facilitated the development of materials with unique surface properties, such as spherical surface micelles and wormlike surface structures. However, there are still challenges in the synthesis and applications of these surface nanostructures.
Article
Nanoscience & Nanotechnology
Xiaohui Song, Cuicui Liu, Xiaotao Liu, Songlin Liu
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Nanoscience & Nanotechnology
Chunsong Zhao, Chaoliang Tan, Der-Hsien Lien, Xiaohui Song, Matin Amani, Mark Hettick, Hnin Yin Yin Nyein, Zhen Yuan, Lu Li, Mary C. Scott, Ali Javey
NATURE NANOTECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Xiaohui Song, Weichang Xu, Dongmeng Su, Jing Tang, Xiaotao Liu
Article
Quantum Science & Technology
Xue-Yi Guo, Zi-Yong Ge, Hekang Li, Zhan Wang, Yu-Ran Zhang, Pengtao Song, Zhongcheng Xiang, Xiaohui Song, Yirong Jin, Li Lu, Kai Xu, Dongning Zheng, Heng Fan
Summary: The study successfully simulated Bloch oscillation and Wannier-Stark localization phenomena using a 5-qubit programmable superconducting processor, demonstrating their characteristics and verifying the inverse correlation between WSL length and potential gradient. The research provides a new method for investigating out-of-equilibrium problems in quantum many-body systems.
NPJ QUANTUM INFORMATION
(2021)
Article
Multidisciplinary Sciences
Yu Zhou, Zhenxing Zhang, Zelong Yin, Sainan Huai, Xiu Gu, Xiong Xu, Jonathan Allcock, Fuming Liu, Guanglei Xi, Qiaonian Yu, Hualiang Zhang, Mengyu Zhang, Hekang Li, Xiaohui Song, Zhan Wang, Dongning Zheng, Shuoming An, Yarui Zheng, Shengyu Zhang
Summary: The study presents a fast and high-fidelity reset scheme for quantum qubits, achieved by modulating the flux through the qubit to swap with its readout resonator within 34 ns. This approach can effectively deplete the second excited state, has negligible effects on neighboring qubits, and offers a way to entangle the qubit with a single photon for quantum communication applications.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Xiaohui Song, Xingyu Zhang, Zihao Ou, Ya-Qian Zhang, Mufan Li
Summary: This study presents a facile method for controlling the core position of gold nanoparticles in different shells, utilizing AuNPs with varying sizes, shapes, and surface chemistry. Investigation of the wetting of solid shell domains on seed nanoparticles allows for qualitative measurement of nanoparticle surface wettability, providing a platform for the synthesis of anisotropic nanoparticles.
ACS APPLIED NANO MATERIALS
(2021)
Article
Electrochemistry
Xin Yao, Xiaohui Song, Fan Zhang, Jian Ma, Hao Jiang, Lulu Wang, Yongchao Liu, Edison Huixiang Ang, Hongfa Xiang
Summary: In this study, a modified polymer cellulose-based separator (PIC) was prepared using a non-solvent induced phase separation approach. The PIC separator showed superior performances in lithium metal batteries, with good wetting ability, high ionic conductivity, improved mechanical strength, and compatibility with high voltage cathode materials. This work demonstrates a new strategy for separator design in high-performance lithium metal battery applications.
Article
Chemistry, Multidisciplinary
Xiaohui Song, Xingyu Zhang, Qiang Chang, Xin Yao, Mufan Li, Ruopeng Zhang, Xiaotao Liu, Chengyu Song, Yun Xin Angel Ng, Edison Huixiang Ang, Zihao Ou
Summary: The rapid advancement of transmission electron microscopy has led to revolutions in various fields, revealing the 3D information of each atom in nanoparticles and capturing the atomic structural kinetics in metal nanoparticles after phase transformation. Quantitative measurements of physical and chemical properties have been made, but high dose rates are incompatible with other ultrathin morphologies, limiting atomic electron tomography primarily to quasi-spherical nanoparticles. This study demonstrates the 3D atomic structure of a complex core-shell nanowire and shows that a new superthin noble metal layer can mitigate electron beam damage on ultrathin nanowires.
Article
Chemistry, Multidisciplinary
Fangyuan Liu, Xingxu Lu, Chunxiang Zhu, Zichao Bian, Xiaohui Song, Jiyu Sun, Bo Zhang, Junfei Weng, Ashwanth Subramanian, Xiao Tong, Lichun Zhang, Avinash M. Dongare, Chang-Yong Nam, Yong Ding, Guoan Zheng, Haiyan Tan, Pu-Xian Gao
Summary: By using in situ liquid cell transmission electron microscopy, a repeated two-stage anisotropic and pulsating periodic etching dynamic is discovered during the pencil shape evolution of a single crystal ZnO nanorod in aqueous hydrochloric acid. The high-index surfaces {101 m} (m=0, 1, 2, or 3) and {21 1 n} (n=0, 1, 2, or 3) are found to preferentially expose in different ratios, and the exposure of these high-index surfaces enhances the chemical sensing and CO2 hydrogenation activity of the material. These findings provide a deep understanding of the anisotropic wet chemical etching of ionic nanocrystals and offer a design strategy for advanced functional materials.
Article
Multidisciplinary Sciences
Yun-Hao Shi, Run-Qiu Yang, Zhongcheng Xiang, Zi-Yong Ge, Hao Li, Yong-Yi Wang, Kaixuan Huang, Ye Tian, Xiaohui Song, Dongning Zheng, Kai Xu, Rong-Gen Cai, Heng Fan
Summary: This study realizes an analogue black hole using a fermionic lattice model, consisting of superconducting qubits and tunable couplers. The experiment successfully demonstrates the behavior of stimulated Hawking radiation through the quantum walks of quasi-particles in the curved spacetime. The results also provide direct measurements of the dynamics of entanglement in the curved spacetime.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
Yun-Hao Shi, Yu Liu, Yu-Ran Zhang, Zhongcheng Xiang, Kaixuan Huang, Tao Liu, Yong-Yi Wang, Jia-Chi Zhang, Cheng-Lin Deng, Gui-Han Liang, Zheng-Yang Mei, Hao Li, Tian-Ming Li, Wei-Guo Ma, Hao-Tian Liu, Chi-Tong Chen, Tong Liu, Ye Tian, Xiaohui Song, Kai Xu, Dongning Zheng, Franco Nori, Heng Fan
Summary: This study develops a one-dimensional 43-qubit superconducting quantum processor called Chuang-tzu, which is used to simulate and characterize emergent topological states. The quantum processor is capable of capturing important topological features of quantum systems, providing a new method for studying quantum topological systems in the NISQ era.
PHYSICAL REVIEW LETTERS
(2023)
Article
Energy & Fuels
Yan Wu, Xiaoli Meng, Shilei Guan, Yan Wu, Xiaohui Song, Lingyun Gu, Feiyan Zhou, Jinjie Liu
Summary: This paper proposes a new method based on variational mode decomposition and stacked auto encoder to identify the fault type of single-phase broken faults, and the effectiveness is verified through simulation results.
Article
Engineering, Mechanical
Linke Zhang, Chang Liu, Xiaohui Song, Li Xia, Yongsheng Yu
Summary: This paper proposes an improved algorithm for the SSA algorithm. Compared with the SRC algorithm, the computational cost is reduced by more than twice. Meanwhile, the proposed algorithm inherits the anti-noise performance of SSA.
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Xiaohui Song, Zihao Ou, Xiaosong Hu, Xingyu Zhang, Ming Lin, Liaoyong Wen, Mufan Li
Summary: Wet chemical etching has been used to prepare porous metal-organic framework (MOF) particles, with the pH value of the etching solution serving as a controllable parameter to vary the types of porous ZIF-8 particles observed. The 3D electron tomography technique was applied to analyze the porous ZIF-8 particles and reveal their structural properties. The study demonstrates the potential of wet chemical etching and 3D tomography technique in understanding and designing functional porous materials.
ACS MATERIALS LETTERS
(2021)
Meeting Abstract
Chemistry, Multidisciplinary
Xiaohui Song, Alexandra Bruefach, Philipp Pelz, Mary Scott
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)