Article
Biochemistry & Molecular Biology
Eunil Hahm, Ahla Jo, Eun Ji Kang, Sungje Bock, Xuan-Hung Pham, Hyejin Chang, Bong-Hyun Jun
Summary: By controlling the number of reacting SiO2@Ag NPs and the silica precursor, a uniform silica shell with thickness in the range of 5-40 nm was successfully fabricated, contributing to a comprehensive understanding of the optical properties and distance-dependent electromagnetic field effects of metal NPs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Nanoscience & Nanotechnology
Xiufeng Li, Jasper van der Gucht, Philipp Erni, Renko de Vries
Summary: This study presents a method for creating a soft functional material directly from legume flours, by extracting globulins from soy and pea flours and mixing them with gum arabic to form a coacervate. The low interfacial tensions of the coacervates promote the deposition of a shell of coacervate material around oil droplets, demonstrating the potential fabrication of precise core-shell microcapsules from plant-based ingredients.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Angela Candreva, Wiktor Lewandowski, Massimo La Deda
Summary: By controlling the reaction conditions, we can adjust the thickness of the silica shell around gold nanorods, thereby influencing the interaction distance between the nanorods. The coupling of localized surface plasmon resonance (LSPR) is most effective when the distance between the gold cores is less than 10 nm.
JOURNAL OF NANOPARTICLE RESEARCH
(2022)
Article
Engineering, Civil
Xinyu Wang, Changdong Zhang, Tingting Liu, Wenhe Liao, Cong Wang
Summary: This paper proposes a variable-thickness structural optimization method for shell structures based on a regional evolutionary control strategy to reduce the overall structural strain energy and volume. The method defines the thickness element as the design variable, and introduces a regional evolutionary control strategy to adaptively update the evolutionary hierarchy centers and factors. By performing factor and regional evolutionary optimization, the method achieves good static performance and explores the trade-off between strain energy and volume.
THIN-WALLED STRUCTURES
(2022)
Article
Polymer Science
Saeid Darvishi, Erkan Senses
Summary: Polymer nanocomposites (PNCs) are widely used in advanced materials applications and the large fraction of interfacial polymers in PNCs determines their rheological performance. However, strategies to control the structure and dynamics of interfacial polymers are limited. In this study, we propose a facile approach to alter polymer-NP interaction and chain interpenetration in PNCs by changing the macromolecular architecture of interfacial polymers. Our results show that the dispersion and rheological behavior of PNCs depend on the functionality and arm length of the polymers used at the interfaces. These findings can be utilized to design improved molten polymer electrolytes for solid-state battery applications.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Applied
Yu Fu, Yunjing Zhu, Xue Liang, Yihan Kong, Xiaolin Wang, Anan Zhang, Zhiqing Zhao, Jingxin Gou, Yanjiao Wang, Tian Yin, Yu Zhang, Haibing He, Xing Tang
Summary: This study aimed to fabricate core-shell clarithromycin (CAM) microcapsules to cover up the bitter taste of CAM. The microcapsules were prepared by spray drying with aqueous polymer dispersion. The results showed that the microcapsules effectively masked the bitter taste of CAM.
JOURNAL OF MICROENCAPSULATION
(2022)
Article
Materials Science, Multidisciplinary
Qiong Zhu, Xiaoxue Zhang, Xiaodong Wang, Xueling Wu, Zhihua Zhang, Jun Shen
Summary: In this study, carbon aerogel and Fe3O4 nanoparticle composites with core-shell structure were successfully prepared, showing strong microwave absorption and broad absorption bandwidth. The composite material exhibited a very low reflection loss value at 4.80 GHz and a wide effective absorption bandwidth.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Pengchao Zhao, Boguang Yang, Xiayi Xu, Nathanael Chun-Him Lai, Rui Li, Xuefeng Yang, Liming Bian
Summary: A generalizable nanoparticle assembly strategy has been developed to fabricate vacuolated coacervates that mimic the morphology and function of natural coacervates, with the potential to regulate cellular functions.
ADVANCED MATERIALS
(2021)
Article
Multidisciplinary Sciences
Peter J. Santos, Paul A. Gabrys, Leonardo Z. Zornberg, Margaret S. Lee, Robert J. Macfarlane
Summary: Nanoparticle assembly is proposed as an ideal means to program the hierarchical organization of materials, allowing for control of nano- and microstructures while preserving nanoscale ordering. This method enables the manipulation of structural organization across molecular to macroscopic length scales.
Article
Chemistry, Multidisciplinary
Thakur Sapkota, Bishnu Kumar Shrestha, Sita Shrestha, Narayan Bhattarai
Summary: An electrostatic encapsulation strategy was used to create and encapsulate cells into chitin nanofibrils integrated alginate hydrogel microcapsules. The physicochemical characterization of the core-shell microcapsules, including structure, size, and stability, was analyzed. The cellular responses of the core-shell microcapsules were evaluated through in vitro cell studies, and the results showed excellent cell viability for more than 2 weeks. The core-shell microcapsules have the potential for various biomedical applications.
Article
Biochemistry & Molecular Biology
Xuan-Hung Pham, Van-Khue Tran, Eunil Hahm, Yoon-Hee Kim, Jaehi Kim, Wooyeon Kim, Bong-Hyun Jun
Summary: This study reports a novel method for preparing bimetallic nanoparticles with high activity using seed-mediated growth on a silica core template. The resulting nanoparticles exhibit excellent peroxidase-like nanozyme activity and high sensitivity for H2O2 detection.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Lisa Schlichter, Carmen C. Piras, David K. Smith
Summary: The study demonstrates the dynamic assembly of a pH-responsive low-molecular-weight gelator within a pre-formed gel matrix using acid diffusion, allowing for spatial and temporal control. Different acids and gel structures can create diverse gel assembly patterns and lasting pH gradients.
Article
Nanoscience & Nanotechnology
Xiang Zhang, Cheng-Hao Xu, Juan Mo, Xiu-Jing Zheng, Yan-Fang Chen, An-Qi Yang, Yi-Heng Zhang, Peng-Yu Wang, Xia Yuan, Xin-Shan Ye
Summary: Despite the contribution of hypersialylation and upregulation of sialyltransferase (ST) activity to cancer metastasis, there are limited tools to interfere with their expression. In this study, researchers designed and constructed nanoscale coordination polymer (NCP) nanoparticles carrying a ST inhibitor, which effectively removed diverse sialoglycans from cancer cells. The NCP/STI nanoparticles significantly inhibited metastasis formation without systemic toxicity in experimental models. This work provides a promising avenue for the development of ST inhibitors and demonstrates the potential of NCP/STI in inhibiting metastasis for multiple cancers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Julian Grundler, Kwangsoo Shin, Hee-Won Suh, Mingjiang Zhong, W. Mark Saltzman
Summary: This study establishes a straightforward method to precisely tailor the surface topography of PEGylated polymeric nanoparticles based on tuning the architecture of shape-persistent amphiphilic bottlebrush block copolymer (BBCP) building blocks. The research demonstrates that nanoparticle formation and surface topography can be controlled by systematically changing the structural parameters of BBCP architecture, and reveals that the surface topography significantly affects the performance of PEGylated nanoparticles.
Article
Polymer Science
Huan-Li Qi, Heng-Wei Zhou, Chao Duan, Wei-Hua Li, Ming-Ming Ding
Summary: Using a combination of Brownian dynamics simulations and self-consistent field theory, we have shown that the architectural parameters of core-shell comb-like chains play a crucial role in determining their self-assembled conformations. By adjusting the ratio of hydrophilic and hydrophobic segments, different structures such as unsegregated chains, clusters, single micelles, and structures composed of multiple small micelles strung together can be obtained. These findings provide insights for the optimization of molecular design and the control of self-assembly in various applications.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Camilah D. Powell, Amanda W. Lounsbury, Zachary S. Fishman, Christian L. Coonrod, Miranda J. Gallagher, Dino Villagran, Julie B. Zimmerman, Lisa D. Pfefferle, Michael S. Wong
Summary: Nano-sized hematite can be useful for nanomedicine and nanoelectronics by manipulating its magnetic properties. The shape of the nanoparticles, particularly increasing particle shape anisotropy, has a significant impact on the radio frequency heating properties.
Article
Multidisciplinary Sciences
Zhen-Yu Wu, Mohammadreza Karamad, Xue Yong, Qizheng Huang, David A. Cullen, Peng Zhu, Chuan Xia, Qunfeng Xiao, Mohsen Shakouri, Feng-Yang Chen, Jung Yoon (Timothy) Kim, Yang Xia, Kimberly Heck, Yongfeng Hu, Michael S. Wong, Qilin Li, Ian Gates, Samira Siahrostami, Haotian Wang
Summary: The study reports a method for selectively converting nitrate to ammonia using an Fe single atom catalyst, which effectively prevents the formation of N-N coupling products while increasing the production rate of ammonia.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Siraj Sidhik, Wenbin Li, Mohammad H. K. Samani, Hao Zhang, Yafei Wang, Justin Hoffman, Austin K. Fehr, Michael S. Wong, Claudine Katan, Jacky Even, Amanda B. Marciel, Mercouri G. Kanatzidis, Jean-Christophe Blancon, Aditya D. Mohite
Summary: A simple and scalable phase-selective method was reported to fabricate 2D perovskite thin films with homogenous layer thickness, enabling the fabrication of efficient photovoltaic devices. The method involves dissolution of single-crystalline powders in desired solvents to produce thin films with uniform perovskite layer thicknesses. Photovoltaic devices fabricated using such films demonstrated high efficiency and stability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Analytical
Rishabh Bansal, Rafael Verduzco, Michael S. Wong, Paul Westerhoff, Sergi Garcia-Segura
Summary: Boron doped diamond (BDD) is an outstanding electrode material with unique electrocatalytic properties and excellent stability. The use of BDD nanoparticles in electrode fabrication can significantly reduce manufacturing costs while improving catalytic activity. Characterization of the nano-BDD electrodes using techniques such as SEM, Raman spectroscopy, and FTIR showed similar electrochemical properties to standard BDD electrodes. This energy-efficient approach provides a potential solution for degradation of pollutants in water.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Sujin Guo, Hao Li, Kimberly N. Heck, Xinying Luan, Wenhua Guo, Graeme Henkelman, Michael S. Wong
Summary: In-decorated PdAu catalysts were synthesized and investigated for the aqueous reduction of nitrate. The In-on-PdAu nanoparticles showed higher activity and selectivity for nitrate reduction compared to In-on-Pd nanoparticles. This research expands the prospects of practical catalytic denitrification.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Yu Chen, Manav Bhati, Benjamin W. Walls, Bo Wang, Michael S. Wong, Thomas P. Senftle
Summary: This study investigates the photocatalytic oxidation of perfluorocarboxylic acids (PFCA) on hexagonal boron nitride (hBN) and finds that longer-chain PFCAs are more effectively degraded due to stronger adsorption. The researchers also discover that a nitrogen-boron substitutional defect can enhance UVC absorption and PFCA oxidation on hBN.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yu-Lun Fang, Zhun Zhao, Kimberly N. Heck, Lori A. Pretzer, Neng Guo, Tianpin Wu, Wenqing Zhang, Jeffrey T. Miller, Michael S. Wong
Summary: The study demonstrates the enhanced catalytic properties of palladium metal supported on gold in the form of surface ensembles. The thermal annealing effects on the nanostructure and bimetal distribution of the catalyst are explored. The results emphasize the importance of catalyst structure on activity and the potential applications of metal-decorated metal catalysts for higher temperature reactions.
JOURNAL OF CATALYSIS
(2022)
Article
Electrochemistry
Christian L. Conrad, Welman C. Elias, Sergi Garcia-Segura, Michael A. Reynolds, Michael S. Wong
Summary: Highly ordered TiO2 nanostructures, known as nanotube arrays (NTAs), have potential applications in energy, chemical sensing, and biomedical fields. The prevailing synthesis method, titanium anodization, can be improved by modulating electrolyte conductivity to achieve accelerated growth rates. Regulating solution conductivity within a desired range allows for the fabrication of NTAs at faster rates.
Article
Engineering, Environmental
Jordin Metz, Pengxiao Zuo, Bo Wang, Michael S. Wong, Pedro J. J. Alvarez
Summary: Combining ultraviolet light and chlorine can enhance the degradation of perfluorooctanoic acid (PFOA), a type of per- and polyfluoroalkyl substance (PFAS). This method not only increases the removal rate of PFOA, but also generates a significant amount of fluoride. Radical scavenger tests confirmed the important role of Cl· and Cl-2(·) in the degradation process.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Engineering, Environmental
Mojtaba Qanbarzadeh, Laura DiGiacomo, Ehsan Bouteh, Eman Z. Z. Alhamdan, Marc M. M. Mason, Bo Wang, Michael S. S. Wong, Ezra L. L. Cates
Summary: Hexagonal boron nitride (hBN) has been found to be more efficient than other catalysts in photocatalytic degradation of per-/polyfluoroalkyl substances (PFAS), especially at environmentally relevant concentrations. The strong performance of hBN under realistic water conditions suggests its potential as a treatment tool for PFAS contamination.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Engineering, Chemical
Junseok Lee, Changwoo Kim, Chen Liu, Michael S. Wong, Natalie L. Capiro, Kurt D. Pennell, John D. Fortner
Summary: This study describes surface functionalized, superparamagnetic iron oxide nanocrystals (IONCs) with high sorption capacities for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). The study also presents a newly developed method for real-time interfacial observations and explores the mechanisms underlying the differential sorption behavior of PFAS compounds.
Editorial Material
Engineering, Environmental
Glen Daigger, Xiaoguang Duan, Xuchun Li, Wu-Jun Liu, Mingce Long, Kyoung-Yeol Kim, Jinxing Ma, Brooke Mayer, Rodrigo Braga Moruzzi, Bing-Jie Ni, Sigrid Peldszuz, Virender Sharma, Will Tarpeh, Yen Wah Tong, Qilin Wang, Xiangke Wang, Xuanhao Wu, Yusuke Yamauchi, Yang Yang, Dengsong Zhang, Shujuan Zhang, Yan Zhou, Wonyong Choi, Jingyun Fang, Jaehong Kim, Nancy Love, Mark Saeys, Michael Wong
ACS ES&T ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Welman C. Elias, Chelsea A. Clark, Kimberly N. Heck, Jacob H. Arredondo, Bo Wang, Andras Toro, Michael S. Wong, Laszlo Kuertib
Summary: This study reports on the photocatalytic oxidation ability of niobium oxide for aqueous-phase ammonia, which can be significantly enhanced by alkali treatment, with high selectivity.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2023)
Proceedings Paper
Education, Scientific Disciplines
Minjung Kim, Amelia Peeples, Hugo Estrada, Samantha Fowler, Lauren Chiang, Jacob Morgan, Melodi Doganay, Benjamin Walls, Bo Wang, Joshua C. Samba, Michael S. Wong
Summary: This study explores the degradation of PFOA and PFOS using boron nitride as a photocatalyst in a bench scale reactor, with promising results showing significant defluorination rates and degradation percentages after 48 hours. Additionally, a potential full-scale model for incorporation into existing water treatment facilities is proposed. Evidence of NH3 byproduct formation suggests the need for further study and improvement of boron nitride's stability in water.
2021 WASTE-MANAGEMENT EDUCATION RESEARCH CONFERENCE (WERC)
(2021)
Article
Environmental Sciences
Tanya K. Rogers, Sujin Guo, Leslie Arrazolo, Sergi Garcia-Segura, Michael S. Wong, Rafael Verduzco
Summary: Catalytic capacitive deionization (CCDI) is a novel approach that combines selective heterogeneous catalysis with CDI to reduce undesired waste products. This technology effectively removes nitrate in water and transforms it into innocuous nitrogen gas, demonstrating its potential as a treatment method for a wide range of aqueous ionic contaminants.
