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Amano KI, Tozawa K, Tomita M, Takagi R, Iwayasu R, Nakano H, Murata M, Abe Y, Utsunomiya T, Sugimura H, Ichii T. Interaction between the substrate and probe in liquid metal Ga: experimental and theoretical analysis. RSC Adv 2023; 13:30615-30624. [PMID: 37859780 PMCID: PMC10582826 DOI: 10.1039/d3ra04459a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023] Open
Abstract
Interaction between two bodies in a liquid metal is an important topic for development of metallic products with high performance. We conducted atomic force microscopy measurements and achieved the interaction between the substrate and the probe in liquid Ga of an opaque and highly viscous liquid. The interaction cannot be accessed with the normal atomic force microscopy, electron microscopy, and beam reflectometry. We performed a theoretical calculation using statistical mechanics of simple liquids by mixing an experimentally derived quantum effect. From both experiment and theory, we found an unusual behaviour in the interaction between the solvophobic substances, which has never been reported in water and ionic liquids. Shapes of the interaction curves between several solvophobic and solvophilic pairs in liquid Ga are also studied.
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Affiliation(s)
- Ken-Ichi Amano
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University Nagoya 468-8502 Japan
| | - Kentaro Tozawa
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University Nagoya 468-8502 Japan
| | - Maho Tomita
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University Nagoya 468-8502 Japan
| | - Riko Takagi
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University Nagoya 468-8502 Japan
| | - Rieko Iwayasu
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University Nagoya 468-8502 Japan
| | - Hiroshi Nakano
- Research Center for Computational Design of Advanced Functional Materials, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8568 Japan
| | - Makoto Murata
- Department of Materials Science and Engineering, Kyoto University Kyoto 606-8501 Japan
| | - Yousuke Abe
- Department of Materials Science and Engineering, Kyoto University Kyoto 606-8501 Japan
| | - Toru Utsunomiya
- Department of Materials Science and Engineering, Kyoto University Kyoto 606-8501 Japan
| | - Hiroyuki Sugimura
- Department of Materials Science and Engineering, Kyoto University Kyoto 606-8501 Japan
| | - Takashi Ichii
- Department of Materials Science and Engineering, Kyoto University Kyoto 606-8501 Japan
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Amano KI, Furukawa S, Kubo Y, Nakamura Y, Ishii R, Tanase A, Maebayashi M, Hayashi T, Nishi N, Sakka T. Nonadditivities of the Particle Sizes Hidden in Model Pair Potentials and Their Effects on Physical Adsorptions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12999-13007. [PMID: 37658821 DOI: 10.1021/acs.langmuir.3c00968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
It is important to understand the mechanism of colloidal particle assembly near a substrate for development of drug delivery systems, micro-/nanorobots, batteries, heterogeneous catalysts, paints, and cosmetics. Understanding the mechanism is also important for crystallization of the colloidal particles and proteins. In this study, we calculated the physical adsorption of colloidal particles on a flat wall mainly using the integral equation theory, wherein small and large colloidal particles were employed. In the calculation system, like-charged electric double-layer potentials were used as pair potentials. In some cases, it was found that the small particles are more easily adsorbed. This result is unusual from the viewpoint of the Asakura-Oosawa theory, and we call it a "reversal phenomenon". Theoretical analysis revealed that the reversal phenomenon originates from the nonadditivities of the particle sizes. Using the knowledge obtained from this study, we invented a method to analyze the size nonadditivity hidden in model pair potentials. The method will be useful for confirmation of various simulation results regarding the adsorption and development of force fields for colloidal particles, proteins, and solutes.
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Affiliation(s)
- Ken-Ichi Amano
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University, Nagoya 468-8502, Japan
| | - Satoshi Furukawa
- Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yuto Kubo
- Interdisciplinary Program of Biomedical Engineering, Assistive Technology, and Art and Sports Sciences, Faculty of Engineering, Niigata University, Niigata 950-2181, Japan
| | - Yuka Nakamura
- Interdisciplinary Program of Biomedical Engineering, Assistive Technology, and Art and Sports Sciences, Faculty of Engineering, Niigata University, Niigata 950-2181, Japan
| | - Rina Ishii
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University, Nagoya 468-8502, Japan
| | - Ayane Tanase
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University, Nagoya 468-8502, Japan
| | - Masahiro Maebayashi
- Department of Applied Biological Chemistry, Faculty of Agriculture, Meijo University, Nagoya 468-8502, Japan
| | - Tomohiko Hayashi
- Interdisciplinary Program of Biomedical Engineering, Assistive Technology, and Art and Sports Sciences, Faculty of Engineering, Niigata University, Niigata 950-2181, Japan
| | - Naoya Nishi
- Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Tetsuo Sakka
- Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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Amano KI, Sawazumi R, Imamura H, Sumi T, Hashimoto K, Fukami K, Kitaoka H, Nishi N, Sakka T. An Improved Model-potential-free Analysis of the Structure Factor Obtained from a Small-angle Scattering: Acquisitions of the Pair Distribution Function and the Pair Potential. CHEM LETT 2020. [DOI: 10.1246/cl.200292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ken-ichi Amano
- Faculty of Agriculture, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya, Aichi 468-8502, Japan
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Ryosuke Sawazumi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Hiroshi Imamura
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Tomonari Sumi
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Kota Hashimoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuhiro Fukami
- Department of Materials Science and Engineering, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
| | - Haru Kitaoka
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Naoya Nishi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Tetsuo Sakka
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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