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Amamoto Y, Kojio K, Takahara A, Masubuchi Y, Ohnishi T. Complex Network Representation of the Structure-Mechanical Property Relationships in Elastomers with Heterogeneous Connectivity. PATTERNS (NEW YORK, N.Y.) 2020; 1:100135. [PMID: 33294872 PMCID: PMC7691396 DOI: 10.1016/j.patter.2020.100135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/25/2020] [Accepted: 09/30/2020] [Indexed: 11/25/2022]
Abstract
The complicated structure-property relationships of materials have recently been described using a methodology of data science that is recognized as the fourth paradigm in materials science. In network polymers or elastomers, the manner of connection of the polymer chains among the crosslinking points has a significant effect on the material properties. In this study, we quantitatively evaluate the structural heterogeneity of elastomers at the mesoscopic scale based on complex network, one of the methods used in data science, to describe the elastic properties. It was determined that a unified parameter with topological and spatial information universally describes some parameters related to the stresses. This approach enables us to uncover the role of individual crosslinking points for the stresses, even in complicated structures. Based on the data science, we anticipate that the structure-property relationships of heterogeneous materials can be interpretatively represented using this type of "white box" approach.
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Affiliation(s)
- Yoshifumi Amamoto
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ken Kojio
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Atsushi Takahara
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuichi Masubuchi
- Department of Materials Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takaaki Ohnishi
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Alegre-Requena JV, Saldías C, Inostroza-Rivera R, Díaz Díaz D. Understanding hydrogelation processes through molecular dynamics. J Mater Chem B 2019; 7:1652-1673. [DOI: 10.1039/c8tb03036g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Molecular dynamics (MD) is currently one of the preferred techniques employed to understand hydrogelation processes for its ability to include large amounts of atoms in computational calculations, since substantial amounts of solvent molecules are involved in gel formation.
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Affiliation(s)
| | - César Saldías
- Departamento de Química Física
- Facultad de Química y de Farmacia
- Pontificia Universidad Católica de Chile
- Macul
- Chile
| | | | - David Díaz Díaz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
- Instituto de Productos Naturales y Agrobiología del CSIC
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3
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Hideo D, Koji O, Takamitsu N, Sona S, Yuji M. A portable code for dissipative particle dynamics (DPD) simulations with additional specific interactions. CHEM-BIO INFORMATICS JOURNAL 2018. [DOI: 10.1273/cbij.18.70] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Doi Hideo
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University
| | - Okuwaki Koji
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University
| | - Naito Takamitsu
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University
| | - Saitou Sona
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University
| | - Mochizuki Yuji
- Department of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University
- Institute of Industrial Science, The University of Tokyo
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4
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Murayama S, Karasawa K, Kato M. Photodegradable Nanoparticles for Functional Analysis of Intracellular Protein. J PHOTOPOLYM SCI TEC 2018. [DOI: 10.2494/photopolymer.31.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shuhei Murayama
- Department of Pharmaceutical Sciences, Division of Bioanalytical Chemistry, School of Pharmacy, Showa University
| | - Koji Karasawa
- Department of Pharmaceutical Sciences, Division of Bioanalytical Chemistry, School of Pharmacy, Showa University
| | - Masaru Kato
- Department of Pharmaceutical Sciences, Division of Bioanalytical Chemistry, School of Pharmacy, Showa University
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5
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High performance liquid chromatography analysis of 100-nm liposomal nanoparticles using polymer-coated, silica monolithic columns with aqueous mobile phase. J Chromatogr A 2017; 1484:34-40. [DOI: 10.1016/j.chroma.2016.12.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/23/2016] [Accepted: 12/28/2016] [Indexed: 11/22/2022]
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6
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Effect of Nanoparticle Surface on the HPLC Elution Profile of Liposomal Nanoparticles. Pharm Res 2016; 33:1440-6. [DOI: 10.1007/s11095-016-1886-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/16/2016] [Indexed: 11/26/2022]
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7
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Kato M. Development of analytical methods for functional analysis of intracellular protein using signal-responsive silica or organic nanoparticles. J Pharm Biomed Anal 2016; 118:292-306. [PMID: 26580827 DOI: 10.1016/j.jpba.2015.10.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/12/2015] [Accepted: 10/15/2015] [Indexed: 10/22/2022]
Abstract
Because proteins control cellular function, intracellular protein analysis is needed to gain a better understanding of life and disease. However, in situ protein analysis still faces many difficulties because proteins are heterogeneously located within the cell and the types and amount of proteins within the cell are ever changing. Recently, nanotechnology has received increasing attention and multiple protein-containing nanoparticles have been developed. Nanoparticles offer a promising tool for intracellular protein analysis because (1) they can permeate the cellular membrane after modification or changing composition, (2) the stability of various proteins is improved by encapsulation within nanoparticles, and (3) protein release and activity can be controlled. In this review, we discuss the development of analytical methods for intracellular functional protein analysis using signal-responsive silica and organic nanoparticles.
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Affiliation(s)
- Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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8
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Murayama S, Jo JI, Arai K, Nishikido F, Bakalova R, Yamaya T, Saga T, Kato M, Aoki I. γ-PARCEL: Control of Molecular Release Using γ-Rays. Anal Chem 2015; 87:11625-9. [PMID: 26525641 DOI: 10.1021/acs.analchem.5b03030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We previously have developed the photoresponsive tetra-gel and nanoparticles for controlling the function of the encapsulated substance by UV irradiation. However, the penetration ability of the UV is not high enough. Here, we developed a radiation-responsive tetra-gel and nanoparticle based on γ-ray-responsive X-shaped polyethylene glycol (PEG) linker with a disulfide bond. The nanoparticle could retain small molecules and biomacromolecules. γ-Rays were used as a trigger signal because of their higher penetrating ability. This allowed a spatiotemporal release and control of the encapsulated substances from the nanoparticle in the deeper region, which is impossible by using light exposure (ultraviolet, visible, and near-infrared).
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Affiliation(s)
- Shuhei Murayama
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Jun-ichiro Jo
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Kazutaka Arai
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Fumihiko Nishikido
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Rumiana Bakalova
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Taiga Yamaya
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Tsuneo Saga
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ichio Aoki
- Molecular Imaging Center, National Institute of Radiological Sciences , 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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Itoh N, Sano A, Santa T, Kato M. Simultaneous analysis of nanoparticles and small molecules by high-performance liquid chromatography using a silica monolithic column. Analyst 2015; 139:4453-7. [PMID: 25061916 DOI: 10.1039/c4an00819g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high-performance liquid chromatography method using a commercially available silica monolithic column for the simultaneous analysis of nanoparticles and small molecules was developed. The method uses the micrometer-sized flow-through pores and nanometer-sized mesopores of the monolithic column for separation: first, size separation of nanoparticles was performed by the micrometer-sized pores using the hydrodynamic mode, and then small molecules were separated by the nanometer-sized pores using the normal-phase mode. The method was used to evaluate and compare three existing methods for purifying nanoparticles and to analyse nanoparticle stability. The bimodal structure of the monolithic column is promising for the simultaneous separation of nanoparticles and small molecules.
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Affiliation(s)
- Naoki Itoh
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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10
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Itoh N, Santa T, Kato M. Rapid evaluation of the quantity of drugs encapsulated within nanoparticles by high-performance liquid chromatography in a monolithic silica column. Anal Bioanal Chem 2015; 407:6429-34. [PMID: 26072211 DOI: 10.1007/s00216-015-8805-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 05/06/2015] [Accepted: 05/26/2015] [Indexed: 11/26/2022]
Abstract
Drug-containing nanoparticles, the foundation of nanomedicine, provide promise for the safe and effective delivery of drugs to their targets. In this study, we developed a simple method to determine the relative quantities of nanoparticle-encapsulated drugs by HPLC using a commercially available monolithic silica column. Amphotericin B- and irinotecan-containing nanoparticles produced nearly simultaneous elution peaks (~7 min), suggesting that elution was largely driven by hydrodynamic effects and was relatively unaffected by differences in the encapsulated drug. A good correlation was observed between the intensity of the nanoparticle peak and the relative quantity of encapsulated drug. We used our method to characterize the effects of drug quantity and nanoparticle size on drug encapsulation rates within the nanoparticles. Encapsulation increased with increasing quantities of the drug in the preparation solution. This effect was greater for irinotecan than for amphotericin B. Although absolute encapsulation also increased with increasing nanoparticle size, encapsulation efficiency decreased. Thus, the monolith column is suitable for evaluating nanomedicine quality and may be used to evaluate many kinds of nanomaterials. Graphical Abstract Evaluation method of quantity of drug encapsulated within nanoparticles was developed. The method can be applicable for a rapid quality assurance of nanomedicine.
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Affiliation(s)
- Naoki Itoh
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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11
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Kato M, Sasaki M, Ueyama Y, Koga A, Sano A, Higashi T, Santa T. Comparison of the migration behavior of nanoparticles based on polyethylene glycol and silica using micellar electrokinetic chromatography. J Sep Sci 2015; 38:468-74. [DOI: 10.1002/jssc.201401086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/12/2014] [Accepted: 11/12/2014] [Indexed: 01/14/2023]
Affiliation(s)
- Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
| | - Minoru Sasaki
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
| | - Yukari Ueyama
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Ayaka Koga
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Akira Sano
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Tatsuya Higashi
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; Noda-shi Chiba Japan
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences and GPLLI Program; The University of Tokyo; Tokyo Japan
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12
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Amamoto T, Hirata T, Takahashi H, Kamiya M, Urano Y, Santa T, Kato M. Spatiotemporal activation of molecules within cells using silica nanoparticles responsive to blue-green light. J Mater Chem B 2015; 3:7427-7433. [DOI: 10.1039/c5tb01165e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vehicle-nanoparticles that release cargo molecule at the cytoplasm of live cells by blue-green light has been developed.
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Affiliation(s)
- Takaki Amamoto
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Tomoya Hirata
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
| | | | - Mako Kamiya
- Graduate School of Medicine
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yasuteru Urano
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
- Graduate School of Medicine
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Bunkyo-ku
- Japan
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13
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Shibata Y, Santa T, Kato M. Surfactant-free aqueous preparation from a star polymer of size-controlled nanoparticles with encapsulated functional molecules. RSC Adv 2015. [DOI: 10.1039/c5ra12205h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A simple preparation method for size-controlled nanoparticles with encapsulated functional molecules in a surfactant-free aqueous condition.
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Affiliation(s)
- Yuka Shibata
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033
- Japan
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14
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Ishizuka F, Liu X, Murayama S, Santa T, Kato M. Development of a spatiotemporal method to control molecular function by using silica-based photodegradable nanoparticles. J Mater Chem B 2014; 2:4153-4158. [DOI: 10.1039/c4tb00536h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel silica-based photodegradable nanoparticles were developed. The nanoparticle is a useful tool for the spatiotemporal control of various molecular functions because they permit the quick and transient release of encapsulated molecules after short-term irradiation.
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Affiliation(s)
- Fumi Ishizuka
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033, Japan
| | - Xiangsheng Liu
- Center for Medical Systems Innovation Summer Internship Program
- The University of Tokyo
- Japan
| | - Shuhei Murayama
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033, Japan
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033, Japan
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program
- The University of Tokyo
- Tokyo 113-0033, Japan
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15
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Amamoto T, Santa T, Kato M. Reduction of Molecular Leaching from a Gel Matrix for the Precisely Controlled Release of Encapsulated Molecules by Light Stimulus. Chem Pharm Bull (Tokyo) 2014; 62:649-53. [DOI: 10.1248/cpb.c14-00094] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Takaki Amamoto
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo
| | - Tomofumi Santa
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo
| | - Masaru Kato
- Graduate School of Pharmaceutical Sciences and GPLLI Program, The University of Tokyo
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