1
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Thermo-Responsive Injectable Hydrogels Formed by Self-Assembly of Alginate-Based Heterograft Copolymers. Gels 2023; 9:gels9030236. [PMID: 36975684 PMCID: PMC10048633 DOI: 10.3390/gels9030236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/10/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Polysaccharide-based graft copolymers bearing thermo-responsive grafting chains, exhibiting LCST, have been designed to afford thermo-responsive injectable hydrogels. The good performance of the hydrogel requires control of the critical gelation temperature, Tgel. In the present article, we wish to show an alternative method to tune Tgel using an alginate-based thermo-responsive gelator bearing two kinds of grafting chains (heterograft copolymer topology) of P(NIPAM86-co-NtBAM14) random copolymers and pure PNIPAM, differing in their lower critical solution temperature (LCST) about 10 °C. Interestingly, the Tgel of the heterograft copolymer is controlled from the overall hydrophobic content, NtBAM, of both grafts, implying the formation of blended side chains in the crosslinked nanodomains of the formed network. Rheological investigation of the hydrogel showed excellent responsiveness to temperature and shear. Thus, a combination of shear-thinning and thermo-thickening effects provides the hydrogel with injectability and self-healing properties, making it a good candidate for biomedical applications.
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2
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Pang B, Liu R, Han G, Wang W, Zhang W. The synthesis of thermoresponsive POSS-based eight-arm star poly( N-isopropylacrylamide): A comparison between Z-RAFT and R-RAFT strategies. Polym Chem 2021. [DOI: 10.1039/d1py00087j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Z-Type POSS-based eight-arm star poly(N-isopropylacrylamide), POSS-(PNIPAM)8-Z, is synthesized and demonstrated to be a thermoresponsive switchable emulsifier.
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Affiliation(s)
- Bo Pang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Rui Liu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Wei Wang
- School of Chemistry & Material Science
- Langfang Normal University
- Langfang
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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3
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Lee H, Stryutsky AV, Korolovych VF, Mikan E, Shevchenko VV, Tsukruk VV. Transformations of Thermosensitive Hyperbranched Poly(ionic liquid)s Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11809-11820. [PMID: 31418576 DOI: 10.1021/acs.langmuir.9b01905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We synthesized amphiphilic hyperbranched poly(ionic liquid)s (HBPILs) with asymmetrical peripheral composition consisting of hydrophobic n-octadecylurethane arms and hydrophilic, ionically linked poly(N-isopropylacrylamide) (PNIPAM) macrocations and studied low critical solution temperature (LCST)-induced reorganizations at the air-water interface. We observed that the morphology of HBPIL Langmuir monolayers is controlled by the surface pressure with uniform well-defined disk-like domains formed in a liquid phase. These domains are merged and transformed to uniform monolayers with elevated ridge-like network structures representing coalesced interdomain boundaries in a solid phase because the branched architecture and asymmetrical chemical composition stabilize the disk-like morphology under high compression. Above LCST, elevated individual islands are formed because of the aggregation of the collapsed hydrophobized PNIPAM terminal macrocations in a solid phase. The presence of thermoresponsive PNIPAM macrocations initiates monolayer reorganization at LCST with transformation of surface mechanical contrast distribution. The heterogeneity of elastic response and adhesion distributions for HBPIL monolayers in the wet state changed from highly contrasted two-phase distribution below LCST to near-uniform mechanical response above LCST because of the hydrophilic to hydrophobic transformation of the PNIPAM phase.
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Affiliation(s)
- Hansol Lee
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Alexandr V Stryutsky
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine , Kyiv 02160 , Ukraine
| | - Volodymyr F Korolovych
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Emily Mikan
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Valery V Shevchenko
- Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine , Kyiv 02160 , Ukraine
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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4
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Vishwakarma NK, Hwang YH, Adiyala PR, Kim DP. Flow-Assisted Switchable Catalysis of Metal Ions in a Microenvelope System Embedded with Core-Shell Polymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43104-43111. [PMID: 30444347 DOI: 10.1021/acsami.8b17926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Many efforts have been made on stimuli-responsive switchable catalysis to trigger catalytic activity over various chemical reactions. However, the reported light-, pH- or chemically responsive organocatalysts are mostly incomplete in the aspects of shielding efficiency and long-term performance. Here, we advance the flow-assisted switchable catalysis of metal ions in a microenvelope system that allows the on-off catalysis mode on demand for long-lasting catalytic activity. Various metal-ion catalysts can be selectively embedded in a novel polymeric core-shell of the heteroarm star copolymer of poly(styrene) and poly(4-vinylpyridine) emanated from a polyhedral oligomeric silsesquioxane center. The immobilized core-shell polymer on the inner wall of a poly(dimethylsiloxane) envelope microreactor shows on-off switching catalysis between the expanded active mode and contracted protective mode under continuous flow of solvents or subsequent dry conditions. In particular, the preserved catalytic activity of toxic Hg2+ for oxymercuration was demonstrated even for 2 weeks without leaching, whereas the activity of moisture-sensitive Ru3+ ions for polymerization of methyl methacrylate was maintained even after 5 days from an open atmosphere. It is practical that the tight environment of the enveloped microfluidic system facilitates cyclic switching between the reaction-"on" and -"off" modes of such toxic, sensitive/expensive catalysts for long-term prevention and preservation.
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Affiliation(s)
- Niraj K Vishwakarma
- National Creative Research Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Yoon-Ho Hwang
- National Creative Research Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Praveen Reddy Adiyala
- National Creative Research Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
| | - Dong-Pyo Kim
- National Creative Research Center for Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering , Pohang University of Science and Technology (POSTECH) , Pohang 37673 , Korea
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5
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Iatridi Z, Angelopoulou A, Voulgari E, Avgoustakis K, Tsitsilianis C. Star-Graft Quarterpolymer-Based Polymersomes as Nanocarriers for Co-Delivery of Hydrophilic/Hydrophobic Chemotherapeutic Agents. ACS OMEGA 2018; 3:11896-11908. [PMID: 30320280 PMCID: PMC6173558 DOI: 10.1021/acsomega.8b01437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/11/2018] [Indexed: 06/08/2023]
Abstract
We report the fabrication of polymersomes, using as building blocks star-graft quarterpolymers, composed of hydrophobic polystyrene and pH-sensitive poly(2-vinylpyridine)-b-poly(acrylic acid) (P2VP-b-PAA) arms, emanated from a common nodule, enriched by thermosensitive poly(N-isopropylacrylamide) grafts covalently bonded on the PAA block-arms. These multicompartmental polymersomes were evaluated as nanocarriers for the encapsulation and controlled co-delivery of doxorubicin (hydrophilic) and paclitaxel (hydrophobic) chemotherapeutic agents. The polymersomes can load these drugs in different compartments and can efficiently be internalized in the human lung adenocarcinoma epithelial cells, delivering their cargo and inducing high cell apoptosis. The release kinetics of both anticancer agents was controlled differently by the environmental conditions (pH and temperature). Enhanced release was observed at the acidic pH 6.0 and under physiological temperature (37 °C). At the same total drug level, co-delivery of these drugs with the polymersomes caused enhanced cytotoxicity and induced significantly higher cell apoptosis in the cancer cell line compared to the polymersomes loaded with either of the two drugs.
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Affiliation(s)
- Zacharoula Iatridi
- Department
of Chemical Engineering and Department of Pharmacy, Medical
School, University of Patras, 26500 Patras, Greece
| | - Athina Angelopoulou
- Department
of Chemical Engineering and Department of Pharmacy, Medical
School, University of Patras, 26500 Patras, Greece
| | - Efstathia Voulgari
- Department
of Chemical Engineering and Department of Pharmacy, Medical
School, University of Patras, 26500 Patras, Greece
| | - Konstantinos Avgoustakis
- Department
of Chemical Engineering and Department of Pharmacy, Medical
School, University of Patras, 26500 Patras, Greece
- Biomedical
Research Foundation of Academy of Athens (BRFAA), Athens 11527, Greece
| | - Constantinos Tsitsilianis
- Department
of Chemical Engineering and Department of Pharmacy, Medical
School, University of Patras, 26500 Patras, Greece
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6
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Erwin AJ, Korolovych VF, Iatridi Z, Tsitsilianis C, Ankner JF, Tsukruk VV. Tunable Compartmentalized Morphologies of Multilayered Dual Responsive Star Block Polyampholytes. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00744] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Andrew J. Erwin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Volodymyr F. Korolovych
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zacharoula Iatridi
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece
| | | | - John F. Ankner
- Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Vladimir V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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7
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Dyakonova MA, Gotzamanis G, Niebuur BJ, Vishnevetskaya NS, Raftopoulos KN, Di Z, Filippov SK, Tsitsilianis C, Papadakis CM. pH Responsiveness of hydrogels formed by telechelic polyampholytes. SOFT MATTER 2017; 13:3568-3579. [PMID: 28443918 DOI: 10.1039/c7sm00315c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We investigate the influence of pH on the rheological and structural properties of hydrogels formed by hydrophobic association of the sticky ends of the triblock terpolymer poly(methyl methacrylate)-b-poly(2-(diethylamino)ethyl methacrylate-co-methacrylic acid)-b-poly(methyl methacrylate) (PMMA-b-P(DEA-co-MAA)-b-PMMA). The middle block is a weak polyampholyte having a pH dependent charge density and sign, which enables tuning of the rheological and structural properties by pH variation. Small-angle neutron scattering (SANS) studies of solutions in D2O at 0.05 wt% and pH 3.0 reveal clusters of interconnected spherical micelles having PMMA cores, stabilized by repulsive ionic interactions in the middle polyampholyte block. With increasing pH, the degree of ionization of the DEA units decreases, whereas the one of the MAA units increases, resulting in a complete loss of the correlation between these micelles. At a concentration of 3 wt% at low pH values, the system forms a gel with charged fuzzy spheres from PMMA interacting via a screened Coulomb potential. With increasing pH, the gel disintegrates due to the decrease in the effective charge on the micelles. At both concentrations, the hydrophobic aggregation of micelles is observed near the isoelectric point. At pH 3.0-7.4, the autocorrelation functions measured by rotational dynamic light scattering at 3 wt% exhibit a decay steeper than single exponential, which confirms that the gels are frozen, presumably due to the glassy PMMA cores and hydrophobic interpolyelectrolyte complexes. At pH 11, the diffusion of single micelles is observed in addition to the frozen dynamics.
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Affiliation(s)
- Margarita A Dyakonova
- Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.
| | - George Gotzamanis
- Department of Chemical Engineering, University of Patras, 26504 Patras, Greece.
| | - Bart-Jan Niebuur
- Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Natalya S Vishnevetskaya
- Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Konstantinos N Raftopoulos
- Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.
| | - Zhenyu Di
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at MLZ, Lichtenbergstr. 1, 85747 Garching, Germany
| | - 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
| | | | - Christine M Papadakis
- Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany.
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8
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Škvarla J, Raya RK, Uchman M, Zedník J, Procházka K, Garamus VM, Meristoudi A, Pispas S, Štěpánek M. Thermoresponsive behavior of poly(N-isopropylacrylamide)s with dodecyl and carboxyl terminal groups in aqueous solution: pH-dependent cloud point temperature. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4067-z] [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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9
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Cong Y, Li Q, Chen M, Wu L. Synthesis of Dual‐Stimuli‐Responsive Microcontainers with Two Payloads in Different Storage Spaces for Preprogrammable Release. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612291] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ying Cong
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Qiuju Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Min Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Limin Wu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
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10
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Cong Y, Li Q, Chen M, Wu L. Synthesis of Dual‐Stimuli‐Responsive Microcontainers with Two Payloads in Different Storage Spaces for Preprogrammable Release. Angew Chem Int Ed Engl 2017; 56:3552-3556. [DOI: 10.1002/anie.201612291] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Ying Cong
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Qiuju Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Min Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
| | - Limin Wu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 P.R. China
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11
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Lin S, Shang J, Theato P. CO2-Triggered UCST transition of amphiphilic triblock copolymers and their self-assemblies. Polym Chem 2017. [DOI: 10.1039/c7py00186j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Self-assembled vesicles presenting morphological transformations (vesicles–micelles–unimers) upon external stimuli due to their CO2 adjustable UCST behavior in aqueous solution.
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Affiliation(s)
- Shaojian Lin
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Jiaojiao Shang
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
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12
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Wang S, Liu C, Zhou H, Gao C, Zhang W. An efficient route to synthesize thermoresponsive molecular bottlebrushes of poly[o-aminobenzyl alcohol-graft-poly(N-isopropylacrylamide)]. Polym Chem 2017. [DOI: 10.1039/c6py02188c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The thermoresponsive molecular bottlebrushes of poly[o-aminobenzyl alcohol-graft-poly(N-isopropylacrylamide)] [P(oABA-g-PNIPAM)] were synthesized and their characteristic thermoresponse was demonstrated.
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Affiliation(s)
- Shuang Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Chonggao Liu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Heng Zhou
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
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13
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Korolovych VF, Ledin PA, Stryutsky A, Shevchenko VV, Sobko O, Xu W, Bulavin LA, Tsukruk VV. Assembly of Amphiphilic Hyperbranched Polymeric Ionic Liquids in Aqueous Media at Different pH and Ionic Strength. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01562] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Volodymyr F. Korolovych
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Petr A. Ledin
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Alexandr Stryutsky
- Institute
of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Valery V. Shevchenko
- Institute
of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Oleh Sobko
- Institute
of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkivske Shosse 48, Kyiv 02160, Ukraine
| | - Weinan Xu
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Leonid A. Bulavin
- Taras Shevchenko
National University of Kyiv, Volodymyrska
Str. 64, 01601 Kyiv, Ukraine
| | - Vladimir V. Tsukruk
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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14
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Xu W, Ledin PA, Iatridi Z, Tsitsilianis C, Tsukruk VV. Multicompartmental Microcapsules with Orthogonal Programmable Two‐Way Sequencing of Hydrophobic and Hydrophilic Cargo Release. Angew Chem Int Ed Engl 2016; 55:4908-13. [DOI: 10.1002/anie.201600383] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/08/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Weinan Xu
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
| | - Petr A. Ledin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
| | | | | | - Vladimir V. Tsukruk
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
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15
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Xu W, Ledin PA, Iatridi Z, Tsitsilianis C, Tsukruk VV. Multicompartmental Microcapsules with Orthogonal Programmable Two‐Way Sequencing of Hydrophobic and Hydrophilic Cargo Release. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600383] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Weinan Xu
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
| | - Petr A. Ledin
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
| | | | | | - Vladimir V. Tsukruk
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA USA
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16
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Chassenieux C, Tsitsilianis C. Recent trends in pH/thermo-responsive self-assembling hydrogels: from polyions to peptide-based polymeric gelators. SOFT MATTER 2016; 12:1344-1359. [PMID: 26781351 DOI: 10.1039/c5sm02710a] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this article, we highlight some recent developments in "smart" physical hydrogels achieved by self-assembling of block type macromolecules. More precisely we focus on two interesting types of gelators namely conventional ionic (or ionogenic) block copolymers and peptide-based polymers having as a common feature their responsiveness to pH and/or temperature which are the main triggers used for potential biomedical applications. Taking advantage of the immense skills of conventional block copolymer hydrogelators, namely macromolecular design, self-assembling mechanism, gel rheological properties, responsiveness to various triggers and innovative applications, the development of novel self-assembling gelators, integrating the new knowledge emerging from the peptide-based systems, opens new horizons towards bio-inspired technologies.
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Affiliation(s)
- Christophe Chassenieux
- LUNAM Université, Université du Maine, IMMM-UMR CNRS 6283, Département Polymères, Colloides et Interfaces, av. O. Messiaen, 72085 Le Μans cedex 9, France
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17
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Gotzamanis G, Papadimitriou K, Tsitsilianis C. Design of a C-b-(A-co-B)-b-C telechelic polyampholyte pH-responsive gelator. Polym Chem 2016. [DOI: 10.1039/c5py02066b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and the pH dependent structural and rheological properties of a telechelic polyampholyte associative polymer, composed of a random polyampholyte central block, end-capped by shorter hydrophobic blocks [C-b-(A-co-B)-b-C block/random terpolymer type].
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18
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Yong P, Yang Y, Wang Z, Yang L, Chen J. Diverse nanostructures and gel behaviours contained in a thermo- and dual-pH-sensitive ABC (PNIPAM–PAA–P4VP) terpolymer in an aqueous solution. RSC Adv 2016. [DOI: 10.1039/c6ra14682a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
PNIPAM-b-PAA-b-P4VP (NAV), a thermo- and dual-pH-sensitive ABC triblock copolymer, was synthesized via sequential reversible addition–fragmentation chain transfer (RAFT) polymerization and subsequent hydrolysis.
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Affiliation(s)
- Ping Yong
- Department of Chemical Engineering
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yuejiao Yang
- Department of Chemical Engineering
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Zhiyong Wang
- Department of Chemical Engineering
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Liming Yang
- Department of Chemical Engineering
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Jie Chen
- Department of Chemical Engineering
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
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19
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Xu W, Ledin PA, Iatridi Z, Tsitsilianis C, Tsukruk VV. Multiresponsive Star-Graft Quarterpolymer Monolayers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00401] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Weinan Xu
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Petr A. Ledin
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Zacharoula Iatridi
- Department
of Chemical Engineering, University of Patras, 26504 Patras, Greece
- Institute of Chemical
Engineering Sciences (FORTH/ICE-HT), 26504 Patras, Greece
| | - Constantinos Tsitsilianis
- Department
of Chemical Engineering, University of Patras, 26504 Patras, Greece
- Institute of Chemical
Engineering Sciences (FORTH/ICE-HT), 26504 Patras, Greece
| | - Vladimir V. Tsukruk
- School
of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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