Article
Chemistry, Multidisciplinary
Qing-Yun Guo, Xiao-Yun Yan, Wei Zhang, Xing-Han Li, Yongsheng Xu, Shuqi Dai, Yuchu Liu, Bo-Xing Zhang, Xueyan Feng, Jiafu Yin, Di Han, Jiahao Huang, Zebin Su, Tong Liu, Mingjun Huang, Chih-Hao Hsu, Stephen Z. D. Cheng
Summary: Hexagonal mesoporous silica was prepared from single-source giant surfactants constructed using DPOSS and PS, yielding high porosity and a uniform pore size distribution. Varying PS tail lengths can adjust pore size, enhancing both efficiency and stability of nanocatalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Review
Chemistry, Multidisciplinary
Yuping Wang, Griffen J. Desroches, Robert J. Macfarlane
Summary: Polymer nanocomposites with ordered arrays of nanofillers can introduce novel functionalities, providing important insights into thermodynamics and kinetics research.
Article
Nanoscience & Nanotechnology
I-Ming Lin, Rong-Sheng Tsai, Yu-Ting Chou, Yeo-Wan Chiang
Summary: Developing a simple, intuitive, and highly sensitive sensor to detect harmful substances in water is crucial. In this study, an ultrahigh-sensitive sensor based on a quaternized lamellae-structured polystyrene-b-poly(2-vinylpyridine) block copolymer was fabricated, capable of detecting surfactants through direct visualization of the structural color change.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jinseok Park, Anne Staiger, Stefan Mecking, Karen Winey
Summary: By investigating the temperature, we explored the phase behavior and interaction parameter of polyethylene-based multiblock copolymers. These copolymers exhibit layered morphologies with semicrystalline polyethylene blocks, showing ultrahigh compatibility between polar ionic and nonpolar polyethylene segments.
Article
Chemistry, Multidisciplinary
Zhanwen Xu, Jiaping Lin, Liangshun Zhang, Liquan Wang
Summary: The study demonstrates the high permittivity of hybrid nanostructures designed with grafted nanoparticles and diblock copolymers, which self-assemble into ordered networks in the polymer matrix. The ordered nanoparticle networks provide pathways for concentrating electric fields, resulting in improved permittivity and potentially leading to the development of hierarchically ordered functional nanocomposites.
Article
Materials Science, Multidisciplinary
Liyang Shen, Tung-ping Wang, Ting-Han Lee, Michael Forrester, Andrew Becker, Sabrina Torres, Connor Pearson, Eric W. Cochran
Summary: The study introduces 3D printable polymer-toughened epoxy resin composites with enhanced mechanical properties. By utilizing self-assembling micelles, a balance of structure, creep resistance, and flowability is maintained throughout the 3D printing process, resulting in composites with improved impact strength without compromising thermal properties.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Kunlun Zhang, Mingheng Xiao, Li Zhang, Ying Chen, Jianbo Tan
Summary: This study reports a strategy for preparing surface-functional polymeric microspheres using photoinitiated reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization and subsequent photografting under different wavelengths of light. The method allows for the preparation of uniform-sized photoreactive polymeric microspheres and enables photografting polymerizations with various monomers. Furthermore, the technique allows for the preparation of carboxyl-functionalized polymeric microspheres, which can be extensively used for surface bioconjugation reactions.
Article
Nanoscience & Nanotechnology
Julian Heuer, Thomas Kuckhoff, Rong Li, Katharina Landfester, Calum T. J. Ferguson
Summary: The production of photocatalytic self-assembled amphiphilic polymers enables selective control over reactions based on the substrate's physical properties. By polymerizing benzothiadiazole-based photocatalysts into hydrophilic or hydrophobic compartments, we achieved stark differences in reactivity for polar substrates but similar performance for hydrophobic substrates. Additionally, the use of secondary swelling solvents led to a significant increase in conversion for a radical carbon-carbon coupling reaction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Lei Wang, Ji Zhou, Haoruo Zhang, Huawei Zou, Yang Chen, Mei Liang, Zhengguang Heng
Summary: This study successfully synthesized three linear diblock copolymers with similar molecular weights but different compositions, and implanted them into the epoxy matrix to prepare nanostructured composites. The effects of PCL-PS concentration and composition on the organization of nanostructures in the resin matrix were systematically investigated, as well as the relationship between the macro properties of epoxy composites and the morphology of nanostructures.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Naoto Yoshinaga, Satoshi Uchida, Anjaneyulu Dirisala, Mitsuru Naito, Kensuke Osada, Horacio Cabral, Kazunori Kataoka
Summary: A novel carrier design was introduced to protect and release mRNA in the cytosol for efficient protein expression, balancing stability in the biological milieu and ATP-responsive release through the modulation of structural factors. Furthermore, the optimal formulation was enhanced by incorporating cholesterol moieties for prolonged blood circulation post intravenous injection.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Chemistry, Physical
Kai Wang, Yali Xue, Jianjian Lin, Jun Yu, Qimeng Wang, Zhiying Xie, Haizhou Yu, Xiaoyan Qiu
Summary: A biocompatible porous material, ZMDPCs, based on ZIF-8 is designed with ordered topology and dual responsive surfaces to address the challenges of dosage limitation, toxicity, and intelligent responsiveness. The high loading capacity is achieved through the large specific surface area and hierarchical pores. Polydopamine decoration enhances biocompatibility, and it can trigger the phase transition of PCM (a thermal response valve) through NIR irradiation. Drug release can be controlled by NIR or pH stimulation. With its biocompatibility, degradability, and responsive surfaces, ZMDPCs show promising potential as a drug delivery vehicle.
SURFACES AND INTERFACES
(2023)
Article
Multidisciplinary Sciences
Jie Tang, Xiaojing Tong, Yongjun Chen, Yue Wu, Zhiyuan Zheng, A. Basak Kayitmazer, Ayyaz Ahmad, Naveed Ramzan, Jintao Yang, Qingchun Huang, Yisheng Xu
Summary: This study presents the development of a nanopesticide formulation that enhances adhesion and deposition of pesticides, improving their utilization efficiency. The nanopesticides, prepared using temperature-responsive copolymers as carriers, show increased anti-washing efficiency and reduced toxicity to zebrafish compared to commercial formulations. This work addresses an important challenge in pesticide applications and has potential to maximize pesticide usage.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Ahmed F. M. EL-Mahdy, Tzu Ching Yu, Shiao-Wei Kuo
Summary: In this study, a series of tunable multiple heteroatom-doped mesoporous carbon/silica composites were synthesized through a facile tricomponent co-assembly approach. These composites, with high N, O, and Si atom contents and different mesostructures, exhibited exceptional supercapacitor efficiencies, making them promising for high-performance energy storage applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Nataliia Hnatchuk, Evan Hathaway, Jingbiao Cui, Xiao Li
Summary: Self-assembly of BCPs with slow molecular chain dynamics is used to fabricate a metastable asymmetric structure with vertical protuberances that enhance light transmission. Sequential infiltration synthesis is used to verify the formation mechanism of the asymmetric protuberances.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Luoxing Xiang, Qian Li, Chen Li, Qiqi Yang, Fugui Xu, Yiyong Mai
Summary: Porous materials with ordered bicontinuous structures have attracted attention due to their ordered periodic structures, efficient mass diffusion, and exceptional optical and magnetic properties. Block copolymer self-assembly is a versatile strategy for preparing these materials.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Paul Kim, Cheng Li, Richard E. Riman, James Watkins
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Yiliang Zhou, Sema Demirci Uzun, Nicholas J. Watkins, Shengkai Li, Wenhao Li, Alejandro L. Briseno, Kenneth R. Carter, James J. Watkins
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Nanoscience & Nanotechnology
Wenhao Li, Laura C. Bradley, James J. Watkins
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Polymer Science
Benjamin M. Yavitt, Hua-Feng Fei, Gayathri N. Kopanati, H. Henning Winter, James J. Watkins
Article
Polymer Science
Huafeng Fei, Benjamin M. Yavitt, Gayathri Kopanati, James J. Watkins
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
(2019)
Article
Polymer Science
Hua-Feng Fei, Benjamin M. Yayitt, Xiyu Hu, Gayathri Kopanati, Alexander Ribbe, James J. Watkins
Article
Chemistry, Multidisciplinary
Hua-Feng Fei, Wenhao Li, Ayush Bhardwaj, Sravya Nuguri, Alexander Ribbe, James J. Watkins
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Nanoscience & Nanotechnology
Feyza Dundar Arisoy, Ilja Czolkos, Alicia Johansson, Theodor Nielsen, James J. Watkins
Article
Polymer Science
Andreas E. Schedl, Irene Howell, James J. Watkins, Hans-Werner Schmidt
MACROMOLECULAR RAPID COMMUNICATIONS
(2020)
Article
Polymer Science
Benjamin M. Yavitt, Huafeng Fei, Gayathri Kopanati, Ruipeng Li, Masafumi Fukuto, H. Henning Winter, James J. Watkins
Article
Nanoscience & Nanotechnology
Aditi R. Naik, Brenda Warren, Andrew Burns, Ralf Lenigk, Jeffrey Morse, Azar Alizadeh, James J. Watkins
Summary: This study demonstrates a solution-based electrowetting valve technology for flexible microfluidic sweat collection patches, with rapid actuation achieved through inkjet printing and laser ablation. Valve actuation time is influenced by applied voltage, not electrode spacing, and can achieve long fluid retention by optimizing conditions. The technology is integrated into a wearable device for artificial perspiration collection.
MICROFLUIDICS AND NANOFLUIDICS
(2021)
Article
Chemistry, Physical
Dong-Po Song, Wenhao Li, Janghoon Park, Hua-Feng Fei, Aditi R. Naik, Shengkai Li, Yiliang Zhou, Yue Gai, James J. Watkins
Summary: This study presents an efficient method that combines bottom-up precursor film assembly with photothermal processing to rapidly fabricate binder-free mesoporous graphitic carbon composite films on polymer or metal substrates at ambient bulk temperature. The resulting composite films show excellent electrochemical properties and demonstrate high capacity as lithium ion battery anodes.
Article
Polymer Science
Brandon R. Clarke, Hyemin Kim, Mark Ilton, James J. Watkins, Alfred J. Crosby, Gregory N. Tew
Summary: We compared the low-strain mechanical properties of bottlebrush elastomers synthesized using ring-opening metathesis and free radical polymerization, and developed a structural efficiency ratio for predicting mechanical properties. The results highlight the significant impact of polymerization chemistry on the structural efficiency ratio and mechanical properties.
Article
Nanoscience & Nanotechnology
Dae Eon Jung, Irene R. Howell, Vincent J. Einck, Feyza Dundar Arisoy, Lucas D. Verrastro, Andrew McClung, Amir Arbabi, James J. Watkins
Summary: In this work, atomic layer deposition (ALD) was used as a short post-fabrication step to increase the refractive index (RI) of nanocrystal (NC)-based films and patterned nanostructures. The RI of TiO2 NC-based films was increased from 1.95 to 2.15 by ALD, and the number of ALD cycles could be adjusted to achieve desired intermediate RI values. The use of ALD resulted in a denser structure and improved optical performance of the nanostructures, as demonstrated by the increased focusing efficiency of metalenses.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Uzodinma Okoroanyanwu, Ayush Bhardwaj, James J. Watkins
Summary: We developed a method for preparing high-quality, large area, few-layer graphene films on any substrate using a xenon flash lamp. This method allows for fast and efficient synthesis of graphene without the need for catalytic substrates or conductive electrodes. The precursor films used in this method have strong absorption within the emission spectrum of the xenon flash lamp.
ACS APPLIED MATERIALS & INTERFACES
(2023)