1
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Guo P, Wang Q, Chen L, Dingya K, Wang B. Ultrasound-Responsive Micelle-Encapsulated Mesenchymal Stem Cell-Derived EVs for the Treatment of Lower Limb Microcirculation Disease. ACS OMEGA 2023; 8:49406-49419. [PMID: 38162755 PMCID: PMC10753545 DOI: 10.1021/acsomega.3c08133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024]
Abstract
Lower limb microcirculatory ischemic disease is a vascular disorder primarily characterized by limb pain, gangrene, and potential amputation. It can be caused by various factors, such as hyperglycemia, atherosclerosis, and infection. Due to the extremely narrow luminal diameter in lower limb microcirculatory ischemic lesions, both surgical and medical interventions face challenges in achieving satisfactory therapeutic outcomes within the microvessels. Extracellular vesicles derived from mesenchymal stem cells (MSCs-EVs) exhibit promising potential in the treatment of microcirculation ischemic lesions due to their small size and ability to promote angiogenesis. After undergoing substantial losses during the process of EVs transportation, only a minimal fraction of EVs can effectively reach the site of microcirculatory lesions, thereby compromising the therapeutic efficacy for microcirculatory disorders. Herein, an ultrasound-responsive system utilizing 2-(dimethylamino)ethyl methacrylate-b-2-tetrahydropyranyl methacrylate (DMAEMA-b-THPMA) micelles to encapsulate MSCs-EVs has been successfully constructed, with the aim of achieving localized and targeted release of EVs at the site of microcirculatory lesions. The reversible addition-fragmentation chain transfer (RAFT) polymerization method facilitates the successful synthesis of diblock copolymers comprising monomer 2-(dimethylamino)ethyl methacrylate (DMAEMA) and monomer 2-tetrahydropyranyl methacrylate (THPMA). The DMAEMA-b-THPMA micelles exhibit a nanoscale structure, reliable biocompatibility, ultrasound responsiveness, and conspicuous protection of EVs. Furthermore, the implementation of low-energy-density ultrasound can enhance angiogenesis by upregulating the levels of the vascular endothelial growth factor (VEGF). In in vivo experiments, the ultrasound-responsive system of the DMAEMA-b-THPMA micelles and MSCs-EVs synergistically enhances therapeutic efficacy by promoting angiogenesis, improving vascular permeability, and optimizing vascular. In conclusion, this work demonstrates bioapplication of an ultrasound-responsive micellar nanosystem loaded with EVs for the treatment of lower limb microcirculatory ischemic disorders.
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Affiliation(s)
- Peng Guo
- The
Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Qian Wang
- College
of Materials and Chemical Engineering, West
Anhui University, Luan 237012, Anhui, China
| | - Ling Chen
- The
First Affiliated Hospital of Lanzhou University, Lanzhou 730000, Gansu, China
| | - Kun Dingya
- The
Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Bing Wang
- The
Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, Henan, China
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2
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Ihsan AB, Imran AB, Susan MABH. Advanced Functional Polymers: Properties and Supramolecular Phenomena in Hydrogels and Polyrotaxane-based Materials. CHEMISTRY AFRICA 2023; 6:79-94. [DOI: 10.1007/s42250-022-00460-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/20/2022] [Indexed: 09/01/2023]
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3
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Qin HY, Liu Z, Dan Yang X, Liu YQ, Xie R, Ju XJ, Wang W, Chu LY. Pseudo Polyampholytes with Sensitively Ion-Responsive Conformational Transition Based on Positively Charged Host-Guest Complexes. Macromol Rapid Commun 2022; 43:e2200127. [PMID: 35334130 DOI: 10.1002/marc.202200127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/18/2022] [Indexed: 11/09/2022]
Abstract
Biological polyampholytes are ubiquitous in living organisms with primary functions including that serving as transporters for moving chemical molecular species across the cell membranes. Synthetic amphoteric macromolecules that can change their phase states depending on the environment to simulate some properties of natural polyampholytes are of great interests. Here, we explore implementation of synthetic pseudo polymeric ampholytes with ion-recognition-triggered conformational change. The phase transition behaviors of the ion-recognition-creative polyampholytes that containing deprotonated carboxylic acid groups as negative charges and 18-crown-6 units for forming positively charged host-guest complexes are systematically investigated. The ion-recognition-triggered phase transition behaviors of pseudo polyampholytes are significantly dependent on cation species and concentrations. Only those specific ions like K+ , Ba2+ , Sr2+ and Pb2+ ions that can form 1:1 host-guest complexes with 18-crown-6 units in polymers enable to control over the conformational change like that of the traditional pH-dependent polyampholytes. By regulating the content of the carboxylic acid groups to match the content of the ion-recognized positive charges provided by the host-guest complexes, the pseudo polyampholytes are more sensitive to the recognizable cations. Such ion-recognition-triggered amphoteric characteristics make the pseudo polyampholytes acting like biological proteins, nucleic acids and enzymes as molecular transporters, genetic code storage and biocatalysts in artificial systems. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hai-Yue Qin
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xue- Dan Yang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Yu-Qiong Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China.,State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan, 610065, P. R. China
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4
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Polyampholyte poly[2-(dimethylamino)ethyl methacrylate]-star-poly(methacrylic acid) star copolymers as colloidal drug carriers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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5
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Marcisz K, Kaniewska K, Stojek Z, Karbarz M. Electroresponsiveness of a positively charged thin hydrogel layer on an electrode surface. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.106981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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6
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Marcisz K, Gawronska A, Stojek Z, Karbarz M. Triggering the Shrinking/Swelling Process in Thin Gel Layers on Conducting Surfaces by Applying an Appropriate Potential. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12114-12120. [PMID: 30816688 DOI: 10.1021/acsami.9b00713] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Negatively charged, pH-sensitive, very thin gel layers with accumulated hexaammineruthenium (II)/(III) were deposited on conducting surfaces. The gel was synthesized by applying an electrochemically induced free-radical polymerization method. This method allowed covering the electrode surface with an uniform and compact layer. The modified electrodes exhibited excellent current switch on/off behavior in response to changes in pH. However, the main goal of this study was to achieve the control of the layer thickness by changing the oxidation state of hexaammineruthenium. The layers could be reversibly swollen/shrinked by applying appropriate potentials.
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Affiliation(s)
- Kamil Marcisz
- Faculty of Chemistry, Biological and Chemical Research Center , University of Warsaw , 101 Żwirki i Wigury Av. , PL 02-089 Warsaw , Poland
| | - Andzelika Gawronska
- Faculty of Chemistry, Biological and Chemical Research Center , University of Warsaw , 101 Żwirki i Wigury Av. , PL 02-089 Warsaw , Poland
| | - Zbigniew Stojek
- Faculty of Chemistry, Biological and Chemical Research Center , University of Warsaw , 101 Żwirki i Wigury Av. , PL 02-089 Warsaw , Poland
| | - Marcin Karbarz
- Faculty of Chemistry, Biological and Chemical Research Center , University of Warsaw , 101 Żwirki i Wigury Av. , PL 02-089 Warsaw , Poland
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7
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Li Y, Zhu L, Grishkewich N, Tam KC, Yuan J, Mao Z, Sui X. CO 2-Responsive Cellulose Nanofibers Aerogels for Switchable Oil-Water Separation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9367-9373. [PMID: 30735345 DOI: 10.1021/acsami.8b22159] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cellulose nanofibers (CNFs) aerogels with controllable surface wettability were prepared by grafting poly( N, N-dimethylamino-2-ethyl methacrylate) (PDMAEMA) polymer brushes via surface-initiated atom-transfer radical polymerization. After grafting PDMAEMA polymer, the surface of the aerogel was hydrophobic. However, in the presence of CO2, the surface of the aerogel gradually changes from hydrophobic to hydrophilic. The porous structure and CO2-responsiveness of PDMAEMA brushes within the CNFs aerogels allowed for the on-off switching of the oil-water mixture separation process. These CNFs aerogels were recyclable and displayed attractive separation efficiency for oil-water mixture and surfactant-stabilized emulsions. Furthermore, the switchable surface wettability holds an advantage of avoiding oil-fouling, which will greatly improve its recyclability.
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Affiliation(s)
- Yingzhan Li
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo , ON N2L 3G1 , Canada
| | | | - Nathan Grishkewich
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo , ON N2L 3G1 , Canada
| | - Kam C Tam
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo , ON N2L 3G1 , Canada
| | - Jinying Yuan
- Key Lab of Organic Optoelectronics & Engineering Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China
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8
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Chen Y, Sun P. pH-Sensitive Polyampholyte Microgels of Poly(Acrylic Acid- co-Vinylamine) as Injectable Hydrogel for Controlled Drug Release. Polymers (Basel) 2019; 11:E285. [PMID: 30960269 PMCID: PMC6419058 DOI: 10.3390/polym11020285] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/29/2019] [Accepted: 02/05/2019] [Indexed: 01/01/2023] Open
Abstract
pH-sensitive polyampholyte microgels of poly(acrylic acid-co-vinylamine) (P(AA-co-VAm)) were developed as an injectable hydrogel for controlled drug release. The microgels of P(AA-co-VAm) were prepared via inverse suspension polymerization of acrylic acid and N-vinylformamide followed by hydrolysis of poly(N-vinylformamide) (PNVF) chains of the resultant microgels under basic condition. The pH-sensitivity of the P(AA-co-VAm) microgels in zeta potential and swelling ratio were investigated using a zeta potential analyzer and optical microscope. The results showed that both the zeta potential and the swelling ratio of the microgels were highly affected by the solution pH. By changing the pH of P(AA-co-VAm) microgel dispersion, the interparticle interaction and the swelling ratio of the microgels could be well adjusted and a colloidal hydrogel could be fabricated at moderate pH, showing a pH-triggered reversible fluid-gel transition. Using the polyampholyte P(AA-co-VAm) microgels as an injectable hydrogel drug release system, a sustained drug release could be achieved, indicating the great potentials of the pH-sensitive P(AA-co-VAm) microgels for controlled drug delivery.
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Affiliation(s)
- Yanmin Chen
- College of Chemistry and Chemical Engineering, Zhengzhou Normal University, No.6 Yingcai Street, Zhengzhou 450044, China.
| | - Peijian Sun
- Zhengzhou Tobacco Research Institute of CNTC (China National Tobacco Corporation), No. 2 Fengyang Street, Zhengzhou 450001, China.
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9
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Sponchioni M, Capasso Palmiero U, Manfredini N, Moscatelli D. RAFT copolymerization of oppositely charged monomers and its use to tailor the composition of nonfouling polyampholytes with an UCST behaviour. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00221e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The RAFT copolymerization of oppositely-charged monomers is studied to optimize the composition of polyampholytes with an UCST behaviour and nonfouling properties.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
| | - Umberto Capasso Palmiero
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Nicolò Manfredini
- Department of Chemistry and Applied Biosciences
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Davide Moscatelli
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
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10
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Lin L, Luo Y, Li X. Synthesis of Diblock Polyampholyte PAMPS-b-PMAPTAC and Its Adsorption on Bentonite. Polymers (Basel) 2018; 11:polym11010049. [PMID: 30960032 PMCID: PMC6402225 DOI: 10.3390/polym11010049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/21/2018] [Accepted: 12/26/2018] [Indexed: 11/29/2022] Open
Abstract
To study the adsorption of polyampholyte on bentonite (Bent), a block polyampholyte, PAMPS-b-PMAPTAC, comprised of 2-Acrylamido-2-Methylpropane Sulfonic Acid (AMPS) units and Methacrylamido Propyl Trimethyl Ammonium Chloride (MAPTAC) units, was synthesized using reversible addition-fragmentation chain transfer polymerization (RAFT) method. The block polyampholyte samples were characterized by FTIR, 1H NMR and Gel Permeation Chromatography (GPC). The microstructure of block polyampholyte and random polyampholyte in deionized water indicated that uneven distribution of charged groups increased the entanglement of polymer chains. Addition of salt weakened the electrostatic interactions among charged groups, and, therefore, increased the zeta potential of polyampholyte in aqueous solutions. The adsorptive behaviors of PAMPS-b-PMAPTAC on Bent were studied using elemental analysis, and the effects of external factors were considered. The adsorption equilibrium of polymers on Bent was reached after 12 h. Increased temperature and increased salinity exerted a positive and negative effect on the adsorption of polyampholyte, respectively. The molecular weight played as the decisive factor for the adsorption of polyampholyte in the absence of NaCl, while the content of cationic groups acted as the main factor in the presence of NaCl. Block polyampholyte exhibited higher adsorption than random polyampholyte in the absence of salt. XRD results also indicated that block polyampholyte had a better intercalation effect than random polyampholyte.
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Affiliation(s)
- Ling Lin
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province (Southwest Petroleum University), Chengdu 610500, China.
| | - Yuanhao Luo
- CCDC Drilling Fluid Technology Service Company, Chengdu 610051, China.
| | - Xin Li
- Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China.
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11
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Marcisz K, Kaniewska K, Mackiewicz M, Nowinska A, Romanski J, Stojek Z, Karbarz M. Electroactive, Mediating and Thermosensitive Microgel Useful for Covalent Entrapment of Enzymes and Formation of Sensing Layer in Biosensors. ELECTROANAL 2018. [DOI: 10.1002/elan.201800459] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Kamil Marcisz
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Klaudia Kaniewska
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Marcin Mackiewicz
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Anna Nowinska
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Jan Romanski
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Zbigniew Stojek
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
| | - Marcin Karbarz
- Faculty of ChemistryBiological and Chemical Research CenterUniversity of Warsaw 101 Żwirki i Wigury Av., PL 02-089 Warsaw Poland
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12
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Kepola EJ, Patrickios CS. Networks Based on “Core-First” Star Polymers End-Linked Using a Degradable Ketal Cross-Linker: Synthesis, Characterization, and Cleavage. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Eleni J. Kepola
- Department of Chemistry; University of Cyprus; P. O. Box 20537, 1 University Avenue Aglanjia 2109 Nicosia Cyprus
| | - Costas S. Patrickios
- Department of Chemistry; University of Cyprus; P. O. Box 20537, 1 University Avenue Aglanjia 2109 Nicosia Cyprus
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13
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Marcisz K, Romanski J, Stojek Z, Karbarz M. Environmentally sensitive hydrogel functionalized with electroactive and complexing-iron(III) catechol groups. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28697] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kamil Marcisz
- Faculty of Chemistry; University of Warsaw; Warsaw 02-093 Poland
| | - Jan Romanski
- Faculty of Chemistry; University of Warsaw; Warsaw 02-093 Poland
| | - Zbigniew Stojek
- Faculty of Chemistry; University of Warsaw; Warsaw 02-093 Poland
| | - Marcin Karbarz
- Faculty of Chemistry; University of Warsaw; Warsaw 02-093 Poland
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14
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Investigations on “near perfect” poly(2-oxazoline) based amphiphilic polymer conetworks with a crystallizable block. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.09.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Ding A, Lu G, Guo H, Huang X. PDMAEMA-b-PPOA-b-PDMAEMA double-bond-containing amphiphilic triblock copolymer: synthesis, characterization, and pH-responsive self-assembly. Polym Chem 2017. [DOI: 10.1039/c7py01640a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This article reports a new pH-responsive double-bond-containing ABA triblock copolymer synthesized via a combination of free radical polymerization and SET-LRP.
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Affiliation(s)
- Aishun Ding
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Hao Guo
- Department of Chemistry
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
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16
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Constantinou AP, Elladiou M, Patrickios CS. Regular and Inverse Polyampholyte Hydrogels: A Detailed Comparison. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Marios Elladiou
- Department of Chemistry University of Cyprus P.O.
Box 20537 1678 Nicosia Cyprus
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17
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Quartz crystal microbalance electrode modified with thermoresponsive crosslinked and non-crosslinked N-isopropylacrylamide polymers. Response to changes in temperature. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3231-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Lu B, Tarn MD, Pamme N, Georgiou TK. Microfluidically fabricated pH-responsive anionic amphiphilic microgels for drug release. J Mater Chem B 2016; 4:3086-3093. [DOI: 10.1039/c5tb02378e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel amphiphilic microgels with hydrophobic and hydrophilic monomer units on the polymer chains were fabricated with an on-chip polymerisation methodology using a novel chip design.
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Affiliation(s)
- B. Lu
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - M. D. Tarn
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - N. Pamme
- Department of Chemistry
- University of Hull
- Hull
- UK
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19
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Dyakonova MA, Berezkin AV, Kyriakos K, Gkermpoura S, Popescu MT, Filippov SK, Štěpánek P, Di Z, Tsitsilianis C, Papadakis CM. Salt-Induced Changes in Triblock Polyampholyte Hydrogels: Computer Simulations and Rheological, Structural, and Dynamic Characterization. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01746] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Margarita A. Dyakonova
- Fachgebiet
Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Anatoly V. Berezkin
- Fachgebiet
Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Konstantinos Kyriakos
- Fachgebiet
Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Sandra Gkermpoura
- Department
of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Maria T. Popescu
- Department
of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | - Sergey K. Filippov
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162
06 Prague 6, Czech Republic
| | - Petr Štěpánek
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162
06 Prague 6, Czech Republic
| | - Zhenyu Di
- Jülich
Centre for Neutron Science at MLZ, Outstation at MLZ, Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany
| | | | - Christine M. Papadakis
- Fachgebiet
Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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20
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Elladiou M, Patrickios CS. ABC Triblock Terpolymers with Orthogonally Deprotectable Blocks: Synthesis, Characterization, and Deprotection. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01823] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Marios Elladiou
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Costas S. Patrickios
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
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21
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Synthesis and characterization of robust double-networks based on end-linked, pH-responsive first networks. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Qiu M, Zhao XZ, Liu DP, He CJ. pH sensitive amphiphilic conetworks based on end-group cross-linking of polydimethylsiloxane pentablock copolymer and polymethylhydrosiloxane. RSC Adv 2015. [DOI: 10.1039/c4ra13866j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of pH-responsive amphiphilic conetworks were synthesized through cross-linking of well-defined amphiphilic pentablock copolymers via atom transfer radical polymerization.
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Affiliation(s)
- Ming Qiu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Xin-Zheng Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Da-Peng Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Chun-Ju He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
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23
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Lu B, Tarn MD, Pamme N, Georgiou TK. Tailoring pH-responsive acrylic acid microgels with hydrophobic crosslinks for drug release. J Mater Chem B 2015; 3:4524-4529. [DOI: 10.1039/c5tb00222b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphiphilic microgels that were able to encapsulate and release both hydrophobic and hydrophilic moieties were fabricated via a new methodology using a lab-on-a-chip device.
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Affiliation(s)
- B. Lu
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - M. D. Tarn
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - N. Pamme
- Department of Chemistry
- University of Hull
- Hull
- UK
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24
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Zhou C, Deng L, Yao F, Xu L, Zhou J, Fu GD. A Well-Defined Amphiphilic Polymer Conetwork from Sequence Control of the Cross-Linking in Polymer Chains. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503649t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Chao Zhou
- School
of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu Province 211189, P. R. China
| | - Linhong Deng
- Institute
of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, Jiangsu Province 213164, P. R. China
| | - Fang Yao
- School
of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu Province 211189, P. R. China
| | - Liqun Xu
- Institute of Clean Energy & Advanced Materials, Southwest University, Chongqing, 400715, P. R. China
| | - Jian Zhou
- School
of Materials and Engineering, Jiangsu University of Technology, Changzhou, Jiangsu Province 213001, P. R. China
| | - Guo Dong Fu
- School
of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu Province 211189, P. R. China
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25
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Moad G. RAFT (Reversible addition-fragmentation chain transfer) crosslinking (co)polymerization of multi-olefinic monomers to form polymer networks. POLYM INT 2014. [DOI: 10.1002/pi.4767] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Graeme Moad
- CSIRO Materials Science and Engineering Bag 10; Clayton South Victoria 3169 Australia
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26
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Apostolides DE, Patrickios CS, Leontidis E, Kushnir M, Wesdemiotis C. Synthesis and characterization of reversible and self-healable networks based on acylhydrazone groups. POLYM INT 2014. [DOI: 10.1002/pi.4724] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Costas S Patrickios
- Department of Chemistry; University of Cyprus; PO Box 20537 1678 Nicosia Cyprus
| | | | - Michelle Kushnir
- Department of Chemistry and Integrated Biosciences Program; University of Akron; Akron OH 44325-3601 USA
| | - Chrys Wesdemiotis
- Department of Chemistry and Integrated Biosciences Program; University of Akron; Akron OH 44325-3601 USA
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27
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Krivorotova T, Jonikaite-Svegzdiene J, Radzevicius P, Makuska R. Synthesis by RAFT polymerization and properties of anionic cylindrical molecular brushes bearing poly(acrylic acid) side chains. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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28
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Pafiti KS, Elladiou M, Patrickios CS. “Inverse Polyampholyte” Hydrogels from Double-Cationic Hydrogels: Synthesis by RAFT Polymerization and Characterization. Macromolecules 2014. [DOI: 10.1021/ma500084c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyriaki S. Pafiti
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Marios Elladiou
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Costas S. Patrickios
- Department of Chemistry, University of Cyprus,
P.O. Box 20537, 1678 Nicosia, Cyprus
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29
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Yoshimura D, Yamada S, Takasu A. A polyester–polystyrene hybrid connected by dynamic covalent bonds prepared via radical polymerization of styrene in a “RAFT gel”. Polym Chem 2014. [DOI: 10.1039/c4py00052h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We cross-linked the polyester chains with 1,1-thiocarbonyldiimidazole to form a reversible addition–fragmentation chain-transfer (RAFT) gel, in which the trithiocarbonate moiety acted as a cross-linker. The “RAFT gel” was then swollen in vinyl monomers and styrene was radically polymerized within the gel, in which the polyester and polystyrene segments were miscible at the segment level.
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Affiliation(s)
- Daiki Yoshimura
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555, Japan
| | - Shinji Yamada
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555, Japan
| | - Akinori Takasu
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555, Japan
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30
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Affiliation(s)
- Kevin M. Zurick
- Department of Chemical Engineering; University of Missouri; Columbia Missouri 65211
| | - Matthew Bernards
- Department of Chemical Engineering; University of Missouri; Columbia Missouri 65211
- Department of Bioengineering; University of Missouri; Columbia Missouri 65211
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31
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Sun TL, Kurokawa T, Kuroda S, Ihsan AB, Akasaki T, Sato K, Haque MA, Nakajima T, Gong JP. Physical hydrogels composed of polyampholytes demonstrate high toughness and viscoelasticity. NATURE MATERIALS 2013; 12:932-7. [PMID: 23892784 DOI: 10.1038/nmat3713] [Citation(s) in RCA: 1104] [Impact Index Per Article: 100.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 06/13/2013] [Indexed: 05/22/2023]
Abstract
Hydrogels attract great attention as biomaterials as a result of their soft and wet nature, similar to that of biological tissues. Recent inventions of several tough hydrogels show their potential as structural biomaterials, such as cartilage. Any given application, however, requires a combination of mechanical properties including stiffness, strength, toughness, damping, fatigue resistance and self-healing, along with biocompatibility. This combination is rarely realized. Here, we report that polyampholytes, polymers bearing randomly dispersed cationic and anionic repeat groups, form tough and viscoelastic hydrogels with multiple mechanical properties. The randomness makes ionic bonds of a wide distribution of strength. The strong bonds serve as permanent crosslinks, imparting elasticity, whereas the weak bonds reversibly break and re-form, dissipating energy. These physical hydrogels of supramolecular structure can be tuned to change multiple mechanical properties over wide ranges by using diverse ionic combinations. This polyampholyte approach is synthetically simple and dramatically increases the choice of tough hydrogels for applications.
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Affiliation(s)
- Tao Lin Sun
- 1] Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan [2]
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32
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Lee V, Hawa T. Investigation of the effect of bilayer membrane structures and fluctuation amplitudes on SANS/SAXS profile for short membrane wavelength. J Chem Phys 2013; 139:124905. [DOI: 10.1063/1.4821816] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Krumm C, Konieczny S, Dropalla GJ, Milbradt M, Tiller JC. Amphiphilic Polymer Conetworks Based on End Group Cross-Linked Poly(2-oxazoline) Homo- and Triblock Copolymers. Macromolecules 2013. [DOI: 10.1021/ma4004665] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian Krumm
- Biomaterials and Polymer Science,
Department of Biochemical
and Chemical Engineering, TU Dortmund,
Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Stefan Konieczny
- Biomaterials and Polymer Science,
Department of Biochemical
and Chemical Engineering, TU Dortmund,
Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Georg J. Dropalla
- Biomaterials and Polymer Science,
Department of Biochemical
and Chemical Engineering, TU Dortmund,
Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Marc Milbradt
- Biomaterials and Polymer Science,
Department of Biochemical
and Chemical Engineering, TU Dortmund,
Emil-Figge-Straße 66, 44227 Dortmund, Germany
| | - Joerg C. Tiller
- Biomaterials and Polymer Science,
Department of Biochemical
and Chemical Engineering, TU Dortmund,
Emil-Figge-Straße 66, 44227 Dortmund, Germany
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34
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Ghasdian N, Church E, Cottam AP, Hornsby K, Leung MY, Georgiou TK. Novel “core-first” star-based quasi-model amphiphilic polymer networks. RSC Adv 2013. [DOI: 10.1039/c3ra42836b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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35
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Ihsan AB, Sun TL, Kuroda S, Haque MA, Kurokawa T, Nakajima T, Gong JP. A phase diagram of neutral polyampholyte – from solution to tough hydrogel. J Mater Chem B 2013; 1:4555-4562. [DOI: 10.1039/c3tb20790k] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Kaniewska K, Romański J, Karbarz M. Oxidation of ferrocenemethanol grafted to a hydrogel network through cysteine for triggering volume phase transition. RSC Adv 2013. [DOI: 10.1039/c3ra42405g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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37
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Wang HF, Jia HZ, Zhu JY, Chu YF, Feng J, Zhang XZ, Zhuo RX. One-Step Preparation and pH-Tunable Self-Aggregation of Amphoteric Aliphatic Polycarbonates Bearing Plenty of Amine and Carboxyl Groups. Macromol Biosci 2012; 12:1689-96. [DOI: 10.1002/mabi.201200295] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Indexed: 01/31/2023]
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38
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Karbarz M, Łukaszek A, Stojek Z. Electrochemical Properties of Micro- and Regular Electrodes Modified with Environmentally Sensitive Poly(N-Isopropylacrylamide) Gel via Electrochemically Induced Free-Radical Polymerization. ELECTROANAL 2012. [DOI: 10.1002/elan.201200304] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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40
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Rikkou-Kalourkoti M, Matyjaszewski K, Patrickios CS. Synthesis, Characterization and Thermolysis of Hyperbranched Homo- and Amphiphilic Co-Polymers Prepared Using an Inimer Bearing a Thermolyzable Acylal Group. Macromolecules 2012. [DOI: 10.1021/ma202021y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
| | - Costas S. Patrickios
- Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678 Nicosia,
Cyprus
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41
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Rikkou-Kalourkoti M, Loizou E, Porcar L, Matyjaszewski K, Patrickios CS. End-linked, amphiphilic, degradable polymer conetworks: synthesis by sequential atom transfer radical polymerization using a bifunctional, cleavable initiator. Polym Chem 2012. [DOI: 10.1039/c1py00349f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
End-linked amphiphilic conetworks prepared using an ATRP bifunctional, bis(hemiacetal ester) initiator were hydrolyzed by HCl, yielding novel amphiphilic star copolymers.
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Affiliation(s)
| | - Elena Loizou
- Department of Chemistry
- University of Cyprus
- Nicosia
- Cyprus
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42
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Fodor C, Iván B. Poly(
N
‐vinylimidazole)‐
l
‐poly(tetrahydrofuran) amphiphilic conetworks and gels. II. Unexpected dependence of the reactivity of poly(tetrahydrofuran) macromonomer cross‐linker on molecular weight in copolymerization with
N
‐vinylimidazole. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24972] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Csaba Fodor
- Department of Polymer Chemistry and Material Science, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, Pusztaszeri út 59‐67, P. O. Box 17, Budapest H‐1525, Hungary
| | - Béla Iván
- Department of Polymer Chemistry and Material Science, Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, Pusztaszeri út 59‐67, P. O. Box 17, Budapest H‐1525, Hungary
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