Article
Chemistry, Multidisciplinary
Bon Seung Goo, Kyungrok Ham, Yeji Han, Seunghoon Lee, Hayoon Jung, Yongmin Kwon, Youngmin Kim, Jong Wook Hong, Sang Woo Han
Summary: This study successfully decouples the activity of the edge and {110}-plane atoms of Pd NCs by comparing the catalytic behaviors of edge-covered Pd NCs with pristine Pd NCs, providing a new method for more precise examination of the surface properties of various NC catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Bon Seung Goo, Kyungrok Ham, Yeji Han, Seunghoon Lee, Hayoon Jung, Yongmin Kwon, Youngmin Kim, Jong Wook Hong, Sang Woo Han
Summary: This study developed a novel approach to investigate the intrinsic catalytic reactivity of edge and terrace atoms in nanocrystal catalysts. By comparing the catalytic behaviors of edge-covered Pd NCs with those of pristine Pd NCs, researchers successfully decoupled the activity of edge and {110}-plane atoms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Santanu Maiti, Gouranga Manna, Sabyasachi Karmakar, Subrata Maji, Mrinmay K. Mukhopadhyay, Somobrata Acharya, Milan K. Sanyal
Summary: By studying with X-ray, we found that ZnS NRs self-assemble into a bilayer 2D square superlattice at high surface pressure, and then transform into a 3D multilayer structure of the nanorods as the subphase temperature increases. Based on the extracted parameters, we propose a hierarchical packing model of anisotropic NRs self-assembly on the water surface.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Arseniy Epishin, Stephanie Reich, Eduardo B. Barros
Summary: We introduce a theory of optical excitations in binary plasmonic supercrystals composed of two types of metal nanoparticles. Binary crystals exhibit a larger number of plasmonic bands compared to monodisperse supercrystals. The dispersion of these bands is determined by the lattice symmetry, unit cell parameters, and properties of the nanoparticle building blocks.
Article
Chemistry, Physical
Zhan-Wei Li, Yu-Wei Sun, Yan-Hui Wang, You-Liang Zhu, Zhong-Yuan Lu, Zhao-Yan Sun
Summary: Using simple deformable triblock Janus colloids, increasing particle softness enhances the self-assembly and photonic bandgap performance of the structures. Direct pyrochlore lattices formed from overlapping soft particles exhibit larger photonic bandgaps than nonoverlapping structures, and proper overlap caused by softness can significantly improve the photonic properties of the structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yiming Wang, Nitya Sai Reddy Satyavolu, Hong Yang, Yi Lu
Summary: This study systematically analyzed the evolution of structural and functional parameters in the growth of Au-Ag nanostructures controlled by two DNA sequences. It deconvoluted the contributions of structural parameters in affecting the plasmonic properties and designed new nanostructures by exchanging DNA sequences.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Jian Li, Pengcheng Liang, Huijuan Song, Xia Yu, Shiyu Hu, Jiaqi Wang, Cong Cheng, Yan Zhao, Zhaohong Su
Summary: A colorimetric sensor with dual-ratio and dual-mode for the detection of nicotine in tobacco samples was reported. The sensor showed good selectivity and sensitivity, effectively reducing the interference of impurities on nicotine detection. Further analysis of nicotine was conducted through morphological fitting and theoretical calculations.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Zhicheng Jin, Narjes Dridi, Goutam Palui, Valle Palomo, Jesse V. Jokerst, Phillip E. Dawson, Qing-Xiang Amy Sang, Hedi Mattoussi
Summary: We describe the assembly and characterization of quantum dot (QD)-dye conjugates using a specifically designed peptide bridge to recognize and interact with a breast cancer biomarker. These conjugates serve as optically addressable probes, detecting the activity of the biomarker through Fo''rster resonance energy transfer. The conjugates demonstrate high sensitivity to enzymatic proteolysis and show potential for in vivo analysis.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Jeongwon Kim, Insub Jung, Myeong Jin Oh, Hajir Hilal, Woocheol Park, Sungho Park
Summary: Here, we present a seed-mediated synthetic method for producing pseudo three-dimensional oblate spheroids with both concave and convex nanofeatures simultaneously. By using hexagonal Au nanoplates as seeds, we were able to control the growth directions and achieve the formation of both concavity and convexity on the crystal facets. This synthetic approach allows for the synthesis of various types of highly homogeneous six-fold oblate spheroids, which have potential applications in optical materials.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Jacopo De Bellis, Michael Felderhoff, Ferdi Schuth
Summary: In this study, it was demonstrated that mixing multiple metal sources through ball milling can result in supported alloyed nanoparticles, expanding the method's application to the synthesis of supported bimetallic catalysts. The prepared Au-Pd and Au-Cu nanoparticles supported on MgO or YSZ were characterized using powder X-ray diffraction and electron microscopy, and their catalytic performance in CO oxidation was investigated to understand the impact of the synthetic method on the final catalyst materials.
CHEMISTRY OF MATERIALS
(2021)
Article
Physics, Applied
Avishek Das, Arthur C. M. V. Pereira, Anton A. Popov, Andrei Pastukhov, Sergei M. Klimentov, Andrei V. Kabashin, Anderson S. L. Gomes
Summary: Photoacoustic imaging (PAI) is a promising noninvasive biomedical diagnostic technique, but lacks efficient nano-sized contrast agents. Researchers found that titanium nitride (TiN) nanoparticles synthesized by pulsed laser ablation in liquids can be used as a contrast agent in PAI. These nanoparticles exhibit a strong nonlinear photoacoustic response and can generate high-resolution images.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Yuuka Fukui, Kaori Fujino, Keiji Fujimoto
Summary: One-pot synthesis of gold nanoparticles (AuNPs) and AuNPs-polymer hybrid nanoparticles was investigated in a water-in-oil (W/O) miniemulsion. AuNPs were generated in water nanodroplets containing HAuCl4 with a mixture of 1-vinylpyrrolidone (VP) and N,N'-methylenebisacrylamide (MBAAm), while polymerization in water nanodroplets encapsulated AuNPs into polymer nanoparticles. The size and color of AuNPs and the number and location of AuNPs in polymer nanoparticles could be tuned by various factors, such as HAuCl4 concentration and additives.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Luong Xuan Dien, Toru Murayama, Nguyen Tuan Hung, Quang Duc Truong, Huynh Dang Chinh, Masamichi Yoshimura, Masatake Haruta, Tamao Ishida
Summary: Gold nanoparticles supported on titania catalysts were prepared using the solid grinding method, and the catalytic activity was improved by treatment with potassium tert-butoxide. The catalyst exhibited high catalytic activity and stability for CO oxidation.
JOURNAL OF CATALYSIS
(2022)
Review
Chemistry, Multidisciplinary
Younghyun Wy, Hayoon Jung, Jong Wook Hong, Sang Woo Han
Summary: This article reviews recent developments in the synthesis of gold nanostructures with multiple hot spots and Au-based heterostructures for plasmon-induced sensing and photocatalysis. Gold nanostructures with multiple hot spots exhibit enhanced molecular sensing and surface-enhanced Raman scattering performance, while Au-based heterostructures have shown great promise in photocatalytic reactions. The rational design of these nanostructures can lead to enhanced sensing and photocatalysis.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Review
Materials Science, Multidisciplinary
Gaoyang Wang, Hongyu Zhang, Hua Kuang, Chuanlai Xu, Liguang Xu
Summary: Chirality exists widely in nature and is closely related to the origin of life. This paper reviews the different types of chiral nanomaterials and analyzes their chiral mechanism. It also discusses the applications of nanomaterials in chiral testing, cell differentiation, gene shearing, and biological therapy. The potentials and challenges of chiral nanomaterials in the field of biomedicine are reported, along with proposed application strategies and prospects for the future.
Article
Chemistry, Multidisciplinary
In-Seong Jo, Joon Suk Oh, Shin-Hyun Kim, David J. Pine, Gi-Ra Yi
CHEMICAL COMMUNICATIONS
(2018)
Article
Chemistry, Multidisciplinary
Jae-Hyun Kim, Hye Jeong Hwang, Joon Suk Oh, Stefano Sacanna, Gi-Ra Yi
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Correction
Chemistry, Multidisciplinary
In-Seong Jo, Joon Suk Oh, Shin-Hyun Kim, David J. Pine, Gi-Ra Yi
CHEMICAL COMMUNICATIONS
(2018)
Article
Chemistry, Multidisciplinary
Saerom Lee, Jeong Hoon Yoon, In-Seong Jo, Joon Suk Oh, David J. Pine, Tae Soup Shim, Gi-Ra Yi
Article
Polymer Science
Sanghoon Kim, Joon Suk Oh, Taeseon Hwang, Hee Won Seo, Dong-Cheol Jeong, Jun-Ho Lee, Long Wen, Changsik Song, Jeon Geon Han, Jae-Do Nam
MACROMOLECULAR RESEARCH
(2019)
Article
Materials Science, Composites
Le Hoang Sinh, Nguyen Dang Luong, Jukka Seppala
PLASTICS RUBBER AND COMPOSITES
(2019)
Article
Multidisciplinary Sciences
Joon Suk Oh, Sangmin Lee, Sharon C. Glotzer, Gi-Ra Yi, David J. Pine
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Joon Suk Oh, Mingxin He, Gi-Ra Yi, David J. Pine
Article
Chemistry, Multidisciplinary
Joon Suk Oh, Gi-Ra Yi, David J. Pine
Article
Multidisciplinary Sciences
Jairo A. A. Diaz, Joon Suk Oh, Gi-Ra Yi, David J. Pine
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Chemistry, Multidisciplinary
Joon Suk Oh, Gi-Ra Yi, David J. Pine
Article
Chemistry, Physical
Kazem V. Edmond, Tess W. P. Jacobson, Joon Suk Oh, Gi-Ra Yi, Andrew D. Hollingsworth, Stefano Sacanna, David J. Pine
Summary: This method involves the large-scale fabrication of bowl-shaped colloidal particles using an emulsion templating technique, where compliant seed particles are deformed by surface tension on oil droplets as templating surfaces. By adjusting droplet size and seed particle diameter, the final particle shape can be precisely controlled, ranging from shallow lenses to deep bowls. The resulting uniformly-shaped colloidal particles allow for depletion-mediated assembly of flexible colloidal chains and clusters.
Article
Chemistry, Physical
Jeongbin Moon, In-Seong Jo, Jeong Hoon Yoon, Yeongha Kim, Joon Suk Oh, David J. Pine, Gi-Ra Yi
Proceedings Paper
Optics
Thomas Gadda, Nguyen Dang Luong, Markus Laukkanen, Kimmo Karaste, Oskari Kahkonen, Emilia Kauppi, Dimitrios Kazazis, Yasin Ekinci, Juha Rantal
ADVANCES IN PATTERNING MATERIALS AND PROCESSES XXXVI
(2019)
Proceedings Paper
Instruments & Instrumentation
Juha Rantala, Thomas Gadda, Markus Laukkanen, Nguyen Dang Luong, Kimmo Karaste, Dimitrios Kazazis, Yasin Ekinci
INTERNATIONAL CONFERENCE ON EXTREME ULTRAVIOLET LITHOGRAPHY 2018
(2018)
