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Li M, Wu A, Li L, Li Z, Zang H. Three Stages of Dynamic Assembly Process of Dipeptide-Based Supramolecular Gel Revealed by In Situ Infrared Spectroscopy. ACS Biomater Sci Eng 2024; 10:863-874. [PMID: 38240580 DOI: 10.1021/acsbiomaterials.3c01609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2024]
Abstract
The exploration of short peptide-based assembly is vital for understanding protein-misfolding-associated diseases and seeking strategies to attenuate aggregate formation. While, the molecular mechanism of their structural evolution remains poorly studied in view of the dynamic and unpredictable assembly process. Herein, infrared (IR) spectroscopy, which serves as an in situ and real-time analytical technique, was intelligently employed to investigate the mechanism of phase transition and aggregate formation during the dynamic assembly process of diphenylalanine. Combined with other spectroscopy and electron microscopy technologies, three stages of gel formation and the main driving forces in different stages were revealed. A variety of stoichiometric methods such as continuous wavelet transform, principal component analysis, and two-dimensional correlation spectroscopy techniques were conducted to analyze the original time-dependent IR spectra to obtain detailed information on the changes in the amide bands and hydration layer. The microenvironment of hydrogen bonding among amide bands was significantly changed with the addition of pyridine derivatives, resulting in great differences in the properties of co-assembled gels. This work not only provides a universal analytical way to reveal the dynamic assembly process of dipeptide-based supramolecular gel but also expands their applications in supramolecular regulation and high-throughput screens in situ.
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Affiliation(s)
- Meiqi Li
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Aoli Wu
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Lian Li
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Zibo Li
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Hengchang Zang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
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2
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Chen W, Xu B, Tang Q, Qian S, Bian D, Li H. Preparation and Properties of PDMS Surface Coating for Ultra-Low Friction Characteristics. Langmuir 2023; 39:14605-14615. [PMID: 37788007 DOI: 10.1021/acs.langmuir.3c01846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Polydimethylsiloxane (PDMS) has excellent physical-chemical properties and good biocompatibility. Thus, PDMS has been widely applied in biomedical applications. However, the low surface free energy and surface hydrophobicity of PDMS can easily lead to adverse symptoms, such as tissue damage and ulceration, during medical treatment. Therefore, the construction of a hydrophilic low-friction surface on the PDMS surface could be helpful for alleviating patient discomfort and would be of great significance for broadening the application of PDMS in the field of interventional medical catheters. Existing surface modification methods such as hydrogel coatings and chemical grafting suffer from several deficiencies including uncontrollable thickness, surface fragility, and low surface strength. In this study, a hydrophilic surface with ultra-low friction properties was prepared on the surface of PDMS by an ultraviolet light (UV) curing method. The monomer acrylamide (AM) was induced by a photoinitiator to form a coating on the surface of the silicone rubber by in situ polymerization. The surface roughness of the as-prepared coatings was regulated by adding different concentrations of 2-acrylamido-2-methylpropanesulfonic acid (AMPS) to the monomer solution, and the coating properties were systematically characterized. The results indicated that the roughness and thickness of the as-prepared coatings decreased with increasing AMPS concentration and the as-prepared coatings had good hydrophilicity and low-friction properties. The Coefficient of Friction (CoF) was as low as 0.0075 in the deionized water solution, which was 99.7% lower than that of the unmodified PDMS surface. Moreover, the coating with a lower surface roughness exhibited better low-friction properties. The results reported herein provide new insight into the preparation of hydrophilic, low-friction coatings on polymer surfaces.
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Affiliation(s)
- Weiwei Chen
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Bo Xu
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qichen Tang
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shanhua Qian
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Da Bian
- School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hui Li
- Zhengzhou Tobacco Research Institute, China National Tobacco Corporation, Zhengzhou 450001, China
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3
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Hosoya R, Morita H. Stress Chain Analysis for an ABA Triblock Copolymer Using Principal Component Scores. J Phys Chem B 2023; 127:7035-7047. [PMID: 37506030 DOI: 10.1021/acs.jpcb.3c01846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Researchers characterize the mechanical properties of ABA triblock copolymers by structures such as chain conformation. During elongation, bridge chains are stretched and act as a stress chain. Some loop chains also act as a stress chain because of the transmission of stress through an entanglement of loop chains. The stress chain, including the entangled loop chains, in an ABA triblock copolymer that exhibits a body-centered cubic structure was analyzed by principal component analysis (PCA), using the physical data for the B block obtained by coarse-grained molecular dynamics simulations. Local deformation of the A domains caused by the stress chains was also analyzed by PCA of the A block. The dynamics of the stress chain strongly corresponded to the recombination of the A domains; shrinkage because of domain breakage, replacement of stress chains, and biased stress distribution as well as its time dependence were observed.
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Affiliation(s)
- Ryohei Hosoya
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Central 2-1, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Hiroshi Morita
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Central 2-1, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
- Mathematics for Advanced Materials─OIL, National Institute of Advanced Industrial Science and Technology (AIST), Sendai, Miyagi 980-8577, Japan
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4
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Qiu J, Nguyen TH, Kim S, Lee YJ, Song MT, Huang WJ, Chen XB, Nguyen TMH, Yang IS. Two-dimensional correlation spectroscopy analysis of Raman spectra of NiO nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2022; 280:121498. [PMID: 35724591 DOI: 10.1016/j.saa.2022.121498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
We report two-dimensional correlation spectroscopy (2D-COS) analyses of the Raman spectra of NiO nanoparticles over a temperature range from 100 to 300 K. 2D-Raman correlation spectra suggest strong correlation of the phonon spectral intensity variation with the magnetic ordering in NiO nanoparticles. It is revealed that the antiferromagnetic ordering affects the TO phonon anisotropy in NiO nanoparticles. We elucidate the complex spectral features of two-magnon (2 M) bands by performing appropriate 2D-COS model simulations. Significant spin-phonon coupling in NiO nanoparticles is supported by our results. High energy magnon-magnon interaction tails are also found to be involved in the spin-phonon coupling. 2D-COS analyses provide rich information regarding the nature of the phonon and magnon excitations of NiO nanoparticles.
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Affiliation(s)
- Jin Qiu
- Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Korea
| | - Thi Huyen Nguyen
- Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Korea
| | - Seung Kim
- Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Korea
| | - Young Jin Lee
- Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Korea
| | - Meng-Ting Song
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, China
| | - Wen-Juan Huang
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, China
| | - Xiang-Bai Chen
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan, 430205, China
| | - Thi Minh Hien Nguyen
- Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Vietnam
| | - In-Sang Yang
- Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Korea.
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5
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He Z, Lv W, Gao G, Yin Q. Investigation of the chemical changes and mechanism of the epoxy-amine system by in situ infrared spectroscopy and two-dimensional correlation analysis. Polym J. [DOI: 10.1038/s41428-022-00697-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Kenath GS, Karanastasis AA, Ullal CK. Super-Resolution Imaging of Spatial Heterogeneities in Model Thermosensitive Hydrogels with Implications for Their Origins. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gopal S. Kenath
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Apostolos A. Karanastasis
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Chaitanya K. Ullal
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
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7
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Eom Y, Ju H, Park Y, Chae DW, Jung YM, Kim BC, Chae HG. Effect of dissolution pathways of polyacrylonitrile on the solution homogeneity: Thermodynamic- or kinetic-controlled dissolution. POLYMER 2020; 205:122697. [DOI: 10.1016/j.polymer.2020.122697] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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He Z, Liu H, Zhang S, Yang J, Jiang C, Ji M, Yu J, Wang M, Zhu C, Xu J. Investigation of the Cyclization Mechanism of Poly(acrylonitrile- co-ethylenesulfonic acid) Copolymer during Thermal Oxidative Stabilization by In Situ Infrared Spectroscopy. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00977] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhipeng He
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Huichao Liu
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Shuo Zhang
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jinglong Yang
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chi Jiang
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Muwei Ji
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jiali Yu
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Mingliang Wang
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Caizhen Zhu
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jian Xu
- Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
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9
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Abstract
In this review, we focus on the very recent developments on the use of the stimuli responsive properties of polymer hydrogels for targeted drug delivery, tissue engineering, and biosensing utilizing their different optoelectronic properties. Besides, the stimuli-responsive hydrogels, the conducting polymer hydrogels are discussed, with specific attention to the energy generation and storage behavior of the xerogel derived from the hydrogel. The electronic and ionic conducting gels have been discussed that have applications in various electronic devices, e.g., organic field effect transistors, soft robotics, ionic skins, and sensors. The properties of polymer hybrid gels containing carbon nanomaterials have been exemplified here giving attention to applications in supercapacitors, dye sensitized solar cells, photocurrent switching, etc. Recent trends in the properties and applications of some natural polymer gels to produce thermal and acoustic insulating materials, drug delivery vehicles, self-healing material, tissue engineering, etc., are discussed. Besides the polymer gels, peptide gels of different dipeptides, tripeptides, oligopeptides, polypeptides, cyclic peptides, etc., are discussed, giving attention mainly to biosensing, bioimaging, and drug delivery applications. The properties of peptide-based hybrid hydrogels with polymers, nanoparticles, nucleotides, fullerene, etc., are discussed, giving specific attention to drug delivery, cell culture, bio-sensing, and bioimaging properties. Thus, the present review delineates, in short, the preparation, properties, and applications of different polymer and peptide hydrogels prepared in the past few years.
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Affiliation(s)
- Sanjoy Mondal
- Polymer Science Unit, School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
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10
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Jung DE, Eom Y, Kim BC. Enthalpy-Driven Transition of Liquid Crystalline Textures of Poly(2-cyano-p-phenylene terephthalamide) in N,N-Dimethyl Acetamide/Lithium Chloride. Macromol Res 2019; 27:404-11. [DOI: 10.1007/s13233-019-7058-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Park Y, Jin S, Park Y, Kim SM, Noda I, Chae B, Jung YM. Studies on Chemical IR Images of Poly(hydroxybutyrate⁻ co⁻hydroxyhexanoate)/Poly(ethylene glycol) Blends and Two-Dimensional Correlation Spectroscopy. Polymers (Basel) 2019; 11:polym11030507. [PMID: 30960491 PMCID: PMC6473784 DOI: 10.3390/polym11030507] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022] Open
Abstract
Biodegradable poly-[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoates] (PHBHx) have been widely studied for their applications in potentially replacing petroleum-based thermoplastics. In this study, the effect of the high molecular weight (Mn = 3400) poly(ethylene glycol) (PEG) blended in the films of PHBHx with different ratios of PEG was investigated using chemical FTIR imaging. Chemical IR images and FTIR spectra measured with increasing temperature revealed that PEG plays an important role in changing the kinetics of PHBHx crystallization. In addition, two-dimensional correlation spectra clearly showed that thermal properties of PHBHx/PEG blend film changed when the blending ratio of PHBHx/PEG were 60/40 and 50/50. Consequently, PEG leads to changes in the thermal behavior of PHBHx copolymers.
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Affiliation(s)
- Yeonju Park
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea.
| | - Sila Jin
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea.
| | - Yujeong Park
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea.
| | - Soo Min Kim
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea.
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA.
- Danimer Scientific, 140 Industrial Blvd., Bainbridge, GA 39817, USA.
| | - Boknam Chae
- Pohang Accelerator Laboratory, POSTECH, Pohang 37673, Korea.
| | - Young Mee Jung
- Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Korea.
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12
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Hoshino Y, Jibiki T, Nakamoto M, Miura Y. Reversible p K a Modulation of Carboxylic Acids in Temperature-Responsive Nanoparticles through Imprinted Electrostatic Interactions. ACS Appl Mater Interfaces 2018; 10:31096-31105. [PMID: 30148598 DOI: 10.1021/acsami.8b11397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The acid dissociation constants (p Ka values) of Brønsted acids at the active sites of proteins are reversibly modulated by intramolecular electrostatic interactions with neighboring ions in a reaction cycle. The resulting p Ka shift is crucial for the proteins to capture, transfer, and release target ions. On the other hand, reversible p Ka modulation through electrostatic interactions in synthetic polymer materials has seldom been realized because the interactions are strongly shielded by solvation water molecules in aqueous media. Here, we prepared hydrogel nanoparticles (NPs) bearing carboxylic acid groups whose p Ka values can be reversibly modulated by electrostatic interactions with counterions in the particles. We found that the deprotonated states of the acids were stabilized by electrostatic interactions with countercations only when the acids and cations were both imprinted in hydrophobic microdomains in the NPs during polymerization. Cationic monomers, like primary amine- and guanidium group-containing monomers, which interacted strongly with growing NPs showed greater p Ka modulation than monomers that did not interact with the NPs, such as quaternary ammonium group-containing monomers. Modulation was enhanced when the guanidium moieties were protected with hydrophobic groups during polymerization, so that the guanidium ions were imprinted in the hydrophobic microdomains; the lowest p Ka of ∼4.0 was achieved as a result. The p Ka modulation of the acids could be reversibly removed by inducing a temperature-dependent volume phase transition of the gel NPs. These design principles are applicable to other stimuli-responsive materials and integral to the development of synthetic materials that can be used to capture, transport, and separate target ions.
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Affiliation(s)
- Yu Hoshino
- Department of Chemical Engineering , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Toshiki Jibiki
- Department of Chemical Engineering , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Masahiko Nakamoto
- Department of Chemical Engineering , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
| | - Yoshiko Miura
- Department of Chemical Engineering , Kyushu University , 744 Motooka , Nishi-ku, Fukuoka 819-0395 , Japan
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13
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Fu Z, Liu B, Liu Y, Li B, Zhang H. Detailed Cyclization Pathways Identification of Polyacrylonitrile and Poly(acrylonitrile- co-itaconic acid) by in Situ FTIR and Two-Dimensional Correlation analysis. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01162] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhongyu Fu
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Baijun Liu
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Yuyao Liu
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Bing Li
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Huixuan Zhang
- Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China
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14
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Su G, Jia L, Zhang X, Zhang Y, Deng P, Zhou T. Exploration of the unusual two-step volume phase transition of the poly(N-vinylcaprolactam-co-hydroxyethyl methacrylate) hydrogel. Phys Chem Chem Phys 2018; 20:23013-23024. [DOI: 10.1039/c8cp02429d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It is important to investigate the phase transition mechanism of stimuli-sensitive hydrogels due to its great guiding significance for the application of stimuli-sensitive hydrogels in biomedical applications.
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Affiliation(s)
- Gehong Su
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University
- Chengdu 610065
- China
| | - Liyang Jia
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University
- Chengdu 610065
- China
| | - Xueqian Zhang
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University
- Chengdu 610065
- China
| | - Yulin Zhang
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University
- Chengdu 610065
- China
| | - Pengchi Deng
- Analytical & Testing Center, Sichuan University
- Chengdu 610065
- China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering of China, Polymer Research Institute, Sichuan University
- Chengdu 610065
- China
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15
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Ida S, Katsurada A, Yoshida R, Hirokawa Y. Effect of reaction conditions on poly( N -isopropylacrylamide) gels synthesized by post-polymerization crosslinking system. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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16
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Eom Y, Park Y, Jung YM, Kim BC. Effects of conformational change of polyacrylonitrile on the aging behavior of the solutions in N,N-dimethyl formamide. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.11.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Su G, Zhou T, Liu X, Ma Y. Micro-dynamics mechanism of the phase transition behavior of poly(N-isopropylacrylamide-co-2-hydroxyethyl methacrylate) hydrogels revealed by two-dimensional correlation spectroscopy. Polym Chem 2017. [DOI: 10.1039/c6py01935h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The micro-dynamics mechanism of the volume phase transition of PNIPAM-co-HEMA hydrogels was established using temperature-dependent FTIR spectroscopy, PCMW2D, and 2DCOS analysis.
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Affiliation(s)
- Gehong Su
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Xifei Liu
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Yanan Ma
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
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18
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19
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Park Y, Hashimoto C, Ozaki Y, Jung YM. Understanding the phase transition of linear poly(N-isopropylacrylamide) gel under the heating and cooling processes. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Bhattacharya S, Samanta SK. Soft-Nanocomposites of Nanoparticles and Nanocarbons with Supramolecular and Polymer Gels and Their Applications. Chem Rev 2016; 116:11967-12028. [DOI: 10.1021/acs.chemrev.6b00221] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Santanu Bhattacharya
- Department
of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
- Director’s
Research Unit, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Suman K. Samanta
- Director’s
Research Unit, Indian Association for the Cultivation of Science, Kolkata 700032, India
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21
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Wang Q, Tang H, Wu P. Aqueous Solutions of Poly(ethylene oxide)-Poly(N-isopropylacrylamide): Thermosensitive Behavior and Distinct Multiple Assembly Processes. Langmuir 2015; 31:6497-6506. [PMID: 26010200 DOI: 10.1021/acs.langmuir.5b00878] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Detailed phase transition and conformational changes taking place as a function of temperature in poly(ethylene oxide)-b-poly(N-isopropylacrylamide) (PEO-b-PNIPAM) semidiluted aqueous solutions are elucidated in the present study. By the use of elaborate vibrational spectroscopy techniques in combination with two-dimensional correlation spectroscopy (2Dcos), three transition regions including respective rich domains (<29 °C), loose aggregations (30-36 °C), and dense sphere micelles (>37 °C) are depicted. In particular, subtle variations of hydrogen bonds are detected even under the lower critical solution temperature (LCST), and the respective rich domain regime is marked with strong participation from hydrogen bonding at different concentrations and compositions. Both the formation of intermolecular hydrogen bonds and the less hydration degrees of PNIPAM segments compared with PNIPAM homopolymer at elevated temperatures verify the evolution of PNIPAM from their own domains to loose aggregations with PEO shells. Dense micelles are formed beyond the LCST of PNIPAM, while the outmost PEOs act as buffer layers and postpone the shrinkage of PNIPAM chains. Due to the existence of a buffer layer, higher phase transition temperatures compared with PNIPAM homopolymer are observed.
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Affiliation(s)
- Qiuwen Wang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China
| | - Hui Tang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China
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Li X, Kurokawa T, Takahashi R, Haque MA, Yue Y, Nakajima T, Gong JP. Polymer Adsorbed Bilayer Membranes Form Self-Healing Hydrogels with Tunable Superstructure. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00422] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xufeng Li
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takayuki Kurokawa
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Riku Takahashi
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Md. Anamul Haque
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Youfeng Yue
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tasuku Nakajima
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Jian Ping Gong
- Graduate School of Life Science and ‡Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
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Abstract
This review outlines the recent works of two-dimensional correlation spectroscopy (2DCOS) in polymer study. 2DCOS is a powerful technique applicable to the in-depth analysis of various spectral data of polymers obtained under some type of perturbation. The powerful utility of 2DCOS combined with various analytical techniques in polymer studies and noteworthy developments of 2DCOS used in this field are also highlighted.
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Affiliation(s)
- Yeonju Park
- Department of Chemistry, Kangwon National University Chunchon, South Korea
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware Newark, DE, USA
| | - Young Mee Jung
- Department of Chemistry, Kangwon National University Chunchon, South Korea
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IDA S, FURUKAWA S, TANIMOTO S, HIROKAWA Y. Growing Crosslinker: Gel Synthesis Using Novel Divinyl Crosslinker with Expanding Chain-Length between Vinyl Groups by RAFT Polymerization. KOBUNSHI RONBUNSHU 2015. [DOI: 10.1295/koron.2014-0098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shohei IDA
- Department of Materials Science, The University of Shiga Prefecture
| | - Shoichi FURUKAWA
- Department of Materials Science, The University of Shiga Prefecture
| | - Satoshi TANIMOTO
- Department of Materials Science, The University of Shiga Prefecture
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Noda I. Frontiers of two-dimensional correlation spectroscopy. Part 2. Perturbation methods, fields of applications, and types of analytical probes. J Mol Struct 2014; 1069:23-49. [DOI: 10.1016/j.molstruc.2014.01.016] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Nguyen TH, Nguyen TMH, Chen X, Yang I, Park Y, Jung YM. 2D correlation analysis of the magnetic excitations in Raman spectra of HoMnO3. J Mol Struct 2014; 1069:280-3. [DOI: 10.1016/j.molstruc.2014.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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