Article
Chemistry, Physical
Bipul Biswas, Mayank Misra, Anil Singh Bisht, Sanat K. Kumar, Guruswamy Kumaraswamy
Summary: Researchers investigate the directional ice templating of dilute aqueous colloidal particle dispersions and observe the formation of cross-linked clusters of particles at ice crystal boundaries. The probability of clusters containing multiple particles follows a power law and strongly depends on particle concentration in the dispersion. By performing lattice simulations, they demonstrate that differences in the geometry of closed up spaces during crystallization protocols determine the scaling behavior of cluster size.
Article
Chemistry, Multidisciplinary
Hengfei Qin, Yifan Zhang, Jungang Jiang, Lili Wang, Mingyao Song, Ran Bi, Penghui Zhu, Feng Jiang
Summary: The dual ice-templating assembly (DITA) strategy can control the assembly of cellulose nanofibrils (CNF) into elastic aerogels with interconnected sub-micron fibers, exhibiting excellent superelastic behavior and multifunctional properties.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Feng Zhao, Lin Lin, Jian Zhang, Jing Liu, Junyou Shi, Yann Le Godec, Alexandre Courac
Summary: Ice-templating technique combines with other materials' processing technologies to regulate pore morphology, and it opens up a new avenue for improving material properties and developing new materials.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Xiaohong Zhou, Liang Yin, Baisong Yang, Chuyang Chen, Wenhui Chen, Yu Xie, Xichen Yang, Jonathan T. Pham, Sheng Liu, Longjian Xue
Summary: Pore geometry is crucial in determining the properties and functions of porous materials. The mold-assisted ice templating (MIT) technique can control and program the local orientation of micropores, with lamellar thickness and spacing tunable by controlling solution concentration.
Review
Chemistry, Multidisciplinary
Zheng-Ze Pan, Wei Lv, Quan-Hong Yang, Hirotomo Nishihara
Summary: The ice-templating approach is a popular method for preparing macroporous monoliths, offering environmental friendliness and low cost. Through a directional freezing process, aligned ice crystals are formed, resulting in a new material genre called aligned macroporous monoliths (AMMs). This review provides an overview of the IT technique and the preparation of AMMs, focusing on two representative AMMs: aligned micro-honeycomb monoliths and aligned microlamellar monoliths. The structural anisotropy and regularity of these AMMs make them suitable for various applications, such as thermal insulation, filtration, energy storage, and structural engineering. The future directions in this research field are also discussed.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2022)
Article
Engineering, Chemical
Wen-Hai Zhang, Zhi-Jie Liu, Ming-Jie Yin, Yun-Han Ren, Cheng-Gang Jin, Naixin Wang, Quan-Fu An
Summary: In this study, a rapid method for fabricating loose nanofiltration membrane was proposed using dynamic self-assembly and ice-templating technique. The prepared membrane showed superior water permeability, dye rejection efficiency, and long-term stability, making it a promising candidate for wastewater treatment.
Article
Chemistry, Multidisciplinary
Fei Xu, Jiao Zhu, Huaguang Wang, Zexin Zhang
Summary: The controllable assembly of polystyrene microspheres was achieved through a photocatalytically driven electroosmotic flow induced by UV irradiation of Ag3PO4 nanoparticles in water. Different assembly phases such as crystallites, chains, and gels were programmed by systematically adjusting UV intensity, microsphere packing density, and nanoparticle concentration. This study highlights the significant ability of light-responsive nanoparticles in colloidal assembly, offering a new approach for manipulating assembly at the microscale.
CHEMICAL COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Dengping Lyu, Wei Xu, Nansen Zhou, Wendi Duan, Zhisheng Wang, Yijiang Mu, Renjie Zhou, Yufeng Wang
Summary: Soft-and-hard hybrid structures have been challenging to realize at microscale due to material integration and actuation difficulties. In this research, microscale superstructures consisting of soft and hard materials were created through simple colloidal assembly. The resulting structures, referred to as MicroSpine, demonstrated thermoresponsive shape-transforming properties and served as microactuators. By solidifying the liquid parts within the chains with prescribed patterns, various chain morphologies were designed to achieve controlled actuating behaviors. The chains were further used to construct colloidal capsules for temperature-programmed encapsulation and release of guests.
Article
Materials Science, Ceramics
Satyanarayana Sabat, Soumavo Sikder, Shantanu K. Behera, Arindam Paul
Summary: Ice templating is an important technique in developing biomimetic structures for synthetic materials to mimic the design and functionality of natural materials. By using as-synthesized alpha-alumina platelets as building blocks, researchers successfully replicated the inorganic part of nacre through directional solidification in a custom-built setup. The resulting ordered lamellar structure showed significant improvement in mechanical properties due to the reduction of porosity and large-scale alignment of alumina platelets from cold-compaction and sintering.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yuanlan Liu, Yawen Wang, Yinghui Sun, Dong Li, Zhiqiang Liang, Wenkai Liang, Heng Gao, Wei Qin, Hongqiang Qian, Lin Jiang
Summary: Compared with individual colloidal nanoparticles, programmable nanoassemblies with well-defined configurations exhibit more prominent coupling effects and collective behaviors. However, the development of feasible approaches to assemble colloidal nanoparticles into an organized nanostructure on substrates remains a major challenge in nanotechnology. In this study, a facile strategy is developed to programmatically design diversified nanostructures through the rational capture of nanoparticles with flexibly adjustable particle types.
Article
Multidisciplinary Sciences
Li Tian, Clemens Bechinger
Summary: Despite the technological relevance of glasses, there is still a lack of complete microscopic understanding. This study experimentally investigates the surface of a two-dimensional glass and reveals the formation of a liquid film on the surface during the melting process. Additionally, a region with highly mobile particles is found underneath the liquid film. This surface glassy layer may provide insights into the properties of thin glassy films used in various technical applications.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Carolina Rodriguez-Gallo, Antonio Ortiz-Ambriz, Pietro Tierno
Summary: The study demonstrated that boundaries can be engineered to control the bulk behavior in a colloidal artificial ice, with an antiferromagnetic boundary forcing the system to rapidly reach the ground state, and strategically placed defects at corners generating novel bistable states or topological strings. This approach could be extended to other frustrated micro- and nanostructures where boundary conditions can be engineered using lithographic techniques.
PHYSICAL REVIEW LETTERS
(2021)
Article
Polymer Science
Wangmeng Hou, Wen Zhong, Hanying Zhao
Summary: The study demonstrated the effectiveness of the polymerization-induced surface self-assembly (PISSA) approach in synthesizing colloidal particles with tunable asymmetric core-shell structures. By using reversible addition-fragmentation chain transfer (RAFT) agents covalently anchored onto silica particles, asymmetric colloidal particles with controllable anisotropy were successfully prepared via RAFT dispersion polymerization of styrene. The morphologies of the particles changed from surface nodules to snowman-like structures and finally to asymmetric spherical structures with eccentrically positioned core-shell structures.
Article
Chemistry, Multidisciplinary
Lukasz Baran, Dariusz Tarasewicz, Daniel M. M. Kaminski, Wojciech Rzysko
Summary: Selective fabrication of cubic diamond is achieved in a one-component system by applying an external field and manipulating its strength. The formation is driven by the commensurate structure of the first adlayer with the (110) face of cubic diamond. The structure remains stable even after the external field is turned off, allowing for further post-synthetic treatment.
Review
Chemistry, Multidisciplinary
Xueguang Chen, Linhan Lin, Zhengcao Li, Hong-Bo Sun
Summary: The assembly of colloidal particles into superstructures is significant for understanding collective behavior and designing novel colloidal materials. Light plays a crucial role in the directed assembly process, and the understanding of light-matter interaction is critical for tailoring assembly kinetics. Colloidal atoms exhibit diversity in size, shape, and composition, enriching the geometric complexity of colloidal matter. The emerging applications of colloidal superstructures in nanophotonics, nanocatalysis, and nanomedicine are discussed.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Saurabh Usgaonkar, Subrajeet Deshmukh, Bipul Biswas, Neeta Karjule, Prashant Yadav, Jayaraj Nithyanandhan, Guruswamy Kumaraswamy
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Physics, Applied
Karthika Suresh, Guruswamy Kumaraswamy
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Materials Science, Paper & Wood
Aakash Sharma, Shailesh Nagarkar, Shirish Thakre, Guruswamy Kumaraswamy
Article
Polymer Science
Aakash Sharma, Debasis Sen, Shirish Thakre, Guruswamy Kumaraswamy
Correction
Chemistry, Multidisciplinary
Bipul Biswas, Raj Kumar Manna, Abhrajit Laskar, P. B. Sunil Kumar, Ronojoy Adhikari, Guruswamy Kumaraswamy
Article
Polymer Science
Karthika Suresh, Arindam Chowdhury, Sanat K. Kumar, Guruswamy Kumaraswamy
Article
Materials Science, Paper & Wood
Aakash Sharma, Shirish Thakre, Guruswamy Kumaraswamy
Article
Chemistry, Multidisciplinary
Chandan Kumar Choudhury, Vaibhav Palkar, Olga Kuksenok
Article
Nanoscience & Nanotechnology
Liying Wei, Tugba D. Caliskan, Sidong Tu, Chandan K. Choudhury, Olga Kuksenok, Igor Luzinov
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Physics, Applied
Guruswamy Kumaraswamy, Karthika Suresh, Hisay Lama, Madivala G. Basavaraj, Dillip K. Satapathy
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Chemistry, Physical
Chandan Kumar Choudhury, Olga Kuksenok
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Polymer Science
Sidong Tu, Chandan K. Choudhury, Michaela Giltner, Igor Luzinov, Olga Kuksenok
Summary: Using dissipative particle dynamics, the dynamics of molecular bottlebrushes aggregation in solvents of various qualities were characterized. The relationship between aggregation status and structural characteristics of bottlebrushes in different solvents was investigated. The conformational changes of bottlebrushes within the agglomerates were analyzed to understand the relationship between bottlebrush architecture and material properties.
Article
Chemistry, Multidisciplinary
Yao Xiong, Chandan K. Choudhury, Vaibhav Palkar, Raleigh Wunderlich, Rajendra K. Bordia, Olga Kuksenok
Summary: Controlling the morphology of polysiloxane blends during the hydrosilylation reaction allows for the fabrication of polymer-derived ceramics for various applications. Through a dissipative particle dynamics (DPD) approach, we capture the phase separation in binary and ternary polymer blends undergoing hydrosilylation. We demonstrate that the morphology of the sacrificial domains in the nanostructured polymer network can be tailored by adjusting the composition and properties of the sacrificial component.
Article
Materials Science, Multidisciplinary
Aniket Gudadhe, Nirmalya Bachhar, Anil Kumar, Prem Andrade, Guruswamy Kumaraswamy
ACS APPLIED POLYMER MATERIALS
(2019)
Article
Chemistry, Physical
Karthika Suresh, Marleen Haering, Guruswamy Kumaraswamy, David Diaz Diaz