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Jia H, Chen Z, Yan S, Lucaccioni F, Kochovski Z, Lu Y, Friebe C, Schubert US, Gohy JF. Chameleon Multienvironment Nanoreactors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20166-20174. [PMID: 37058326 DOI: 10.1021/acsami.3c02185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Nanoreactors consisting of hydrophilic porous SiO2 shells and amphiphilic copolymer cores have been prepared, which can easily self-tune their hydrophilic/hydrophobic balance depending on the environment and exhibit chameleon-like behavior. The accordingly obtained nanoparticles show excellent colloidal stability in a variety of solvents with different polarity. Most importantly, thanks to the assistance of the nitroxide radicals attached to the amphiphilic copolymers, the synthesized nanoreactors show high catalytic activity for model reactions in both polar and nonpolar environments and, more particularly, realize a high selectivity for the products resulting from the oxidation of benzyl alcohol in toluene.
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Affiliation(s)
- He Jia
- Institute of Condensed Matter and Nanoscience (IMCN), Bio- and Soft Matter (BSMA), Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
| | - Zehan Chen
- Institute of Condensed Matter and Nanoscience (IMCN), Bio- and Soft Matter (BSMA), Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
| | - Shanshan Yan
- Institute of Condensed Matter and Nanoscience (IMCN), Bio- and Soft Matter (BSMA), Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
| | - Fabio Lucaccioni
- Institute of Condensed Matter and Nanoscience (IMCN), Bio- and Soft Matter (BSMA), Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
| | - Zdravko Kochovski
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
| | - Yan Lu
- Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
- Institute of Chemistry, University of Potsdam, 14467 Potsdam, Germany
| | - Christian Friebe
- Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Jean-François Gohy
- Institute of Condensed Matter and Nanoscience (IMCN), Bio- and Soft Matter (BSMA), Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
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Kollár J, Popelka A, Tkac J, Žabka M, Mosnáček J, Kasak P. Sulfobetaine-based polydisulfides with tunable upper critical solution temperature (UCST) in water alcohols mixture, depolymerization kinetics and surface wettability. J Colloid Interface Sci 2021; 588:196-208. [PMID: 33387822 DOI: 10.1016/j.jcis.2020.12.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 02/07/2023]
Abstract
HYPOTHESIS Synthesis of a new family of polymers having a polydisulfide structure can be conducted from sulfobetaine-based derivative of natural (R)-lipoic acid. A polydisulfide backbone of polymer can be depolymerized by response to external stimuli and sulfobetaine pendant groups ensure the upper critical solution temperature (UCST) behaviour temperatures that can be modulated according to the nature of the solvent and concentration. EXPERIMENTS Sulfobetaine-bearing polydisulfides were synthesized from dithiolane derivatives and then characterized. UCST behavior of the polymers in water and in mixtures containing different alcohols (methanol, ethanol, isopropanol) was investigated. The regeneration of monomers from the polymers in response to external stimuli was examined using UV-vis and circular dichroism (CD) spectroscopy. Tunable surface wettability were shown on the grafted polymers. FINDINGS Decreasing polarity and/or increasing alcohol percentage in the water mixtures induced an increase in the cloud points of the polymers in the solutions. Thermoresponsive behaviour were repeatable and fully reversible with negligible hysteresis from aggregate to unimer state. The regeneration of monomers by depolymerization was tunable by temperature and sunlight. A thickness dependence on surface wettability was observed on wafers covalently modified with polydisulfides. This is the first report of sulfobetaine-based polydisulfides showing tunable UCST behavior and surface wettability.
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Affiliation(s)
- Jozef Kollár
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar; Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovak Republic
| | - Anton Popelka
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Jan Tkac
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava 845 38, Slovak Republic
| | - Matej Žabka
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Jaroslav Mosnáček
- Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovak Republic; Centre for Advanced Materials Application, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovak Republic
| | - Peter Kasak
- Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar.
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Wang Y, Gao D, Liu Y, Guo X, Chen S, Zeng L, Ma J, Zhang X, Tian Z, Yang Z. Immunogenic-cell-killing and immunosuppression-inhibiting nanomedicine. Bioact Mater 2020; 6:1513-1527. [PMID: 33294730 PMCID: PMC7689277 DOI: 10.1016/j.bioactmat.2020.11.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/06/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
Combining chemo-therapeutics with immune checkpoint inhibitors facilitates killing cancer cells and activating the immune system through inhibiting immune escape. However, their treatment effects remain limited due to the compromised accumulation of both drugs and inhibitors in certain tumor tissues. Herein, a new poly (acrylamide-co-acrylonitrile-co-vinylimidazole-co-bis(2-methacryloyl) oxyethyl disulfide) (PAAVB) polymer-based intelligent platform with controllable upper critical solution temperature (UCST) was used for the simultaneous delivery of paclitaxel (PTX) and curcumin (CUR). Additionally, a hyaluronic acid (HA) layer was coated on the surface of PAAVB NPs to target the CD44-overexpressed tumor cells. The proposed nanomedicine demonstrated a gratifying accumulation in tumor tissue and uptake by cancer cells. Then, the acidic microenvironment and high level of glutathione (GSH) in cancer cells could spontaneously decrease the UCST of polymer, leading to the disassembly of the NPs and rapid drug release at body temperature without extra-stimuli. Significantly, the released PTX and CUR could induce the immunogenic cell death (ICD) to promote adaptive anti-tumor immunogenicity and inhibit immunosuppression through suppressing the activity of indoleamine 2,3-dioxygenase 1 (IDO1) enzyme respectively. Therefore, the synergism of this intelligent nanomedicine can suppress primary breast tumor growth and inhibit their lung metastasis. A new copolymer PAAVB was prepared with pH- and GSH- controllable upper critical solution temperature (UCST) properties. A nano-platform with PAAVB copolymer core and HA shell was developed and showed the capability to deliver PTX and CUR. The antitumor immune response was synergistically stimulated by PTX-induced ICD and CUR induced IDO1activity suppression. The synergism of intelligent nanomedicine could suppress the primary breast tumor growth and inhibit their lung metastasis.
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Affiliation(s)
- Ying Wang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Di Gao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yan Liu
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, United States
| | - Xiaoqing Guo
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Shuojia Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Li Zeng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jinxuan Ma
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xingcai Zhang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, United States.,School of Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, United States
| | - Zhongmin Tian
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhe Yang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
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4
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Kuepfert M, Qu P, Cohen AE, Hoyt CB, Jones CW, Weck M. Reversible Photoswitching in Poly(2-oxazoline) Nanoreactors. Chemistry 2020; 26:11776-11781. [PMID: 32270529 DOI: 10.1002/chem.202000179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/06/2020] [Indexed: 12/21/2022]
Abstract
This contribution reports light responsive catalytic nanoreactors based on poly(2-oxazoline) diblock copolymers. The hydrophobic block of the copolymer is a random copolymer consisting of a spiropyran functionalized 2-oxazoline (SPOx) and 2-(but-3-yn-1-yl)-4,5-dihydrooxazole (ButynOx), while the hydrophilic block is based on 2-methyl-2-oxazoline (MeOx). The block copolymer is terminated with tris(2-aminoethyl) amine (TREN) that serves as catalyst in a Knoevenagel condensation. Four block copolymers with different ButynOx/SPOx and hydrophilic/hydrophobic ratios are synthesized and self-assembled through solvent exchange. Micelles and vesicles of various sizes are observed by TEM, which undergo morphological and size changes in response to irradiation with UV light. We hypothesize that these transformations in the nanostructures are caused by increases in the hydrophilicity of the hydrophobic block when spiropyran (SP) isomerizes to merocyanine (MC) in the presence of UV light. The reversible transition from micellar to vesicular nanoreactors resulted in increased reaction kinetics through improved substrate accessibility to the catalytic site, or termination of the catalytic reaction due to polymer precipitation. These nanoreactors present a promising platform towards photoregulating reaction outcomes based on changes in nanostructure morphology.
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Affiliation(s)
- Michael Kuepfert
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Peiyuan Qu
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Aaron E Cohen
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Caroline B Hoyt
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
| | - Christopher W Jones
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0100, USA
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA
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5
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Synthesis of poly(diethylaminoethyl methacrylate-co-2,2,6,6-tetramethyl-4-piperidyl methacrylate)s and their segmental motion study. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04717-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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6
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Hansen KA, Chambers LC, Eing M, Barner-Kowollik C, Fairfull-Smith KE, Blinco JP. A Methoxyamine-Protecting Group for Organic Radical Battery Materials-An Alternative Approach. CHEMSUSCHEM 2020; 13:2386-2393. [PMID: 32202387 DOI: 10.1002/cssc.201903529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/16/2020] [Indexed: 06/10/2023]
Abstract
An alternative synthetic route towards the widely employed electroactive poly(TEMPO methacrylate) (PTMA) via a thermally robust methoxyamine-protecting group is demonstrated herein. Protection of the radical moiety of hydroxy-TEMPO with a methyl functionality and subsequent esterification with methacrylic anhydride allows the high-yielding formation of the novel monomer methyl-TEMPO methacrylate (MTMA). The polymerization of MTMA to poly(MTMA) (PMTMA) is investigated via free radical polymerization and reversible addition-fragmentation chain-transfer polymerization (RAFT), a reversible-deactivation radical polymerization technique. Cleavage of the temperature-stable methoxyamine functionality by oxidative treatment of PMTMA with meta-chloroperbenzoic acid (mCPBA) releases the electroactive PTMA. The redox activity of PTMA was confirmed by cyclic voltammetry in lithium-ion coin cells.
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Affiliation(s)
- Kai-Anders Hansen
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Lewis C Chambers
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Matthias Eing
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76131, Karlsruhe, Germany
| | - Christopher Barner-Kowollik
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Kathryn E Fairfull-Smith
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - James P Blinco
- Soft Matter Materials Laboratory, Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
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7
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Khodeir M, Antoun S, Ruymbeke E, Gohy J. Temperature and Redox‐Responsive Hydrogels Based on Nitroxide Radicals and Oligoethyleneglycol Methacrylate. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Miriam Khodeir
- Institute of Condensed Matter and Nanosciences (IMCN)Bio and Soft Matter (BSMA)Université catholique de Louvain (UCL) Place L. Pasteur 1 & Croix du Sud 1 B‐1348 Louvain‐la‐Neuve Belgium
| | - Sayed Antoun
- Department of ChemistryFaculty of Science Section III‐ North Campus‐TripoliLebanese University (UL) Lebanon
| | - Evelyne Ruymbeke
- Institute of Condensed Matter and Nanosciences (IMCN)Bio and Soft Matter (BSMA)Université catholique de Louvain (UCL) Place L. Pasteur 1 & Croix du Sud 1 B‐1348 Louvain‐la‐Neuve Belgium
| | - Jean‐François Gohy
- Institute of Condensed Matter and Nanosciences (IMCN)Bio and Soft Matter (BSMA)Université catholique de Louvain (UCL) Place L. Pasteur 1 & Croix du Sud 1 B‐1348 Louvain‐la‐Neuve Belgium
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8
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Işık D, Quaas E, Klinger D. Thermo- and oxidation-sensitive poly(meth)acrylates based on alkyl sulfoxides: dual-responsive homopolymers from one functional group. Polym Chem 2020. [DOI: 10.1039/d0py01321h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Alkyl sulfoxide side groups introduce thermo- and oxidation-sensitivity into poly(meth)acrylates, thus realizing new dual-responsive homopolymers based on one functional group.
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Affiliation(s)
- Doğuş Işık
- Institute of Pharmacy
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Elisa Quaas
- Institute of Chemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Daniel Klinger
- Institute of Pharmacy
- Freie Universität Berlin
- 14195 Berlin
- Germany
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9
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Crosstalk between responsivities to various stimuli in multiresponsive polymers: change in polymer chain and external environment polarity as the key factor. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04576-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Albright V, Palanisamy A, Zhou Q, Selin V, Sukhishvili SA. Functional Surfaces through Controlled Assemblies of Upper Critical Solution Temperature Block and Star Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10677-10688. [PMID: 30346775 DOI: 10.1021/acs.langmuir.8b02535] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Endowing surfaces with multiple advanced functionalities, such as temperature-controlled swelling or the triggered release of functional small molecules, is attractive for a large variety of applications ranging from smart textiles to advanced biomedical applications. This Invited Feature Article summarizes recent advances in the development of upper critical solution temperature (UCST) behavior of copolymers in aqueous solutions and compares the fundamental differences between lower critical solution temperature (LCST) and UCST transitions. The effect of polymer chemistry and architecture on UCST transitions is discussed for block copolymer micelles (BCMs) and star polymers in solution and assembled at surfaces. The inclusion of such nanocontainers (i.e., BCMs and star polymers) in layer-by-layer (LbL) coatings and how to control their responsive behavior through deposition conditions and binding partners is explored. Finally, the inclusion and temperature-triggered release of functional small molecules is explored for nanocontainers in LbL coatings. Taken together, UCST nanocontainers containing LbL films are promising building blocks for the development of new generations of practical, functional surface coatings.
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Affiliation(s)
- Victoria Albright
- Department of Materials Science and Engineering , Texas A&M University , 575 Ross Street , College Station , Texas 77843 , United States
| | - Anbazhagan Palanisamy
- Department of Materials Science and Engineering , Texas A&M University , 575 Ross Street , College Station , Texas 77843 , United States
| | - Qing Zhou
- Department of Materials Science and Engineering , Texas A&M University , 575 Ross Street , College Station , Texas 77843 , United States
| | - Victor Selin
- Department of Materials Science and Engineering , Texas A&M University , 575 Ross Street , College Station , Texas 77843 , United States
| | - Svetlana A Sukhishvili
- Department of Materials Science and Engineering , Texas A&M University , 575 Ross Street , College Station , Texas 77843 , United States
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11
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Khodeir M, Ernould B, Brassinne J, Ghiassinejad S, Jia H, Antoun S, Friebe C, Schubert US, Kochovski Z, Lu Y, Van Ruymbeke E, Gohy JF. Synthesis and characterisation of redox hydrogels based on stable nitroxide radicals. SOFT MATTER 2019; 15:6418-6426. [PMID: 31338513 DOI: 10.1039/c9sm00905a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The principle of encapsulation/release of a guest molecule from stimuli responsive hydrogels (SRHs) is mainly realised with pH, temperature or light stimuli. However, only a limited number of redox responsive hydrogels have been investigated so far. We report here the development of a SRH that can release its guest molecule upon a redox stimulus. To obtain this redox hydrogel, we have introduced into the hydrogel the 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) stable nitroxide radical, which can be reversibly oxidized into an oxoammonium cation (TEMPO+). Water solubility is provided by the presence of the (oligoethyleneglycol)methacrylate (OEGMA) comonomer. Electrochemical and mechanical characterization showed that those gels exhibit interesting physicochemical properties, making them very promising candidates for practical use in a wide range of applications.
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Affiliation(s)
- Miriam Khodeir
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter (BSMA), Université catholique de Louvain (UCL), Place L. Pasteur 1 & Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium.
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12
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Zhao C, Ma Z, Zhu X. Rational design of thermoresponsive polymers in aqueous solutions: A thermodynamics map. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.01.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Mergel O, Schneider S, Tiwari R, Kühn PT, Keskin D, Stuart MCA, Schöttner S, de Kanter M, Noyong M, Caumanns T, Mayer J, Janzen C, Simon U, Gallei M, Wöll D, van Rijn P, Plamper FA. Cargo shuttling by electrochemical switching of core-shell microgels obtained by a facile one-shot polymerization. Chem Sci 2019; 10:1844-1856. [PMID: 30842853 PMCID: PMC6371888 DOI: 10.1039/c8sc04369h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/02/2018] [Indexed: 12/14/2022] Open
Abstract
Controlling and understanding the electrochemical properties of electroactive polymeric colloids is a highly topical but still a rather unexplored field of research. This is especially true when considering more complex particle architectures like stimuli-responsive microgels, which would entail different kinetic constraints for charge transport within one particle. We synthesize and electrochemically address dual stimuli responsive core-shell microgels, where the temperature-responsiveness modulates not only the internal structure, but also the microgel electroactivity both on an internal and on a global scale. In detail, a facile one-step precipitation polymerization results in architecturally advanced poly(N-isopropylacrylamide-co-vinylferrocene) P(NIPAM-co-VFc) microgels with a ferrocene (Fc)-enriched (collapsed/hard) core and a NIPAM-rich shell. While the remaining Fc units in the shell are electrochemically accessible, the electrochemical activity of Fc in the core is limited due to the restricted mobility of redox active sites and therefore restricted electron transfer in the compact core domain. Still, prolonged electrochemical action and/or chemical oxidation enable a reversible adjustment of the internal microgel structure from core-shell microgels with a dense core to completely oxidized microgels with a highly swollen core and a denser corona. The combination of thermo-sensitive and redox-responsive units being part of the network allows for efficient amplification of the redox response on the overall microgel dimension, which is mainly governed by the shell. Further, it allows for an electrochemical switching of polarity (hydrophilicity/hydrophobicity) of the microgel, enabling an electrochemically triggered uptake and release of active guest molecules. Hence, bactericidal drugs can be released to effectively kill bacteria. In addition, good biocompatibility of the microgels in cell tests suggests suitability of the new microgel system for future biomedical applications.
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Affiliation(s)
- Olga Mergel
- Institute of Physical Chemistry , RWTH Aachen University , Landoltweg 2 , 52056 Aachen , Germany
- Department of Biomedical Engineering-FB40 , University of Groningen , University Medical Center Groningen , A. Deusinglaan 1 , Groningen , 9713 AV , The Netherlands
| | - Sabine Schneider
- Institute of Physical Chemistry , RWTH Aachen University , Landoltweg 2 , 52056 Aachen , Germany
| | - Rahul Tiwari
- DWI - Leibniz Institute for Interactive Materials , RWTH Aachen University , Forckenbeckstraße 50 , 52056 Aachen , Germany
| | - Philipp T Kühn
- Department of Biomedical Engineering-FB40 , University of Groningen , University Medical Center Groningen , A. Deusinglaan 1 , Groningen , 9713 AV , The Netherlands
| | - Damla Keskin
- Department of Biomedical Engineering-FB40 , University of Groningen , University Medical Center Groningen , A. Deusinglaan 1 , Groningen , 9713 AV , The Netherlands
| | - Marc C A Stuart
- Groningen Biomolecular Sciences and Biotechnology Institute , Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 7 , 9747 AG Groningen , The Netherlands
| | - Sebastian Schöttner
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 4 , D-64287 Darmstadt , Germany
| | - Martinus de Kanter
- Chair for Laser Technology LLT , RWTH Aachen University , Steinbachstr. 15 , 52074 Aachen , Germany
| | - Michael Noyong
- Institute of Inorganic Chemistry , JARA-SOFT , RWTH Aachen University , Landoltweg 1 , 52056 Aachen , Germany
| | - Tobias Caumanns
- GFE Central Facility for Electron Microscopy , RWTH Aachen University , Ahornstraße 55 , D-52074 Aachen , Germany
| | - Joachim Mayer
- GFE Central Facility for Electron Microscopy , RWTH Aachen University , Ahornstraße 55 , D-52074 Aachen , Germany
| | - Christoph Janzen
- Fraunhofer Institute for Laser Technology (ILT) , Steinbachstr. 15 , 52074 Aachen , Germany
| | - Ulrich Simon
- Institute of Inorganic Chemistry , JARA-SOFT , RWTH Aachen University , Landoltweg 1 , 52056 Aachen , Germany
| | - Markus Gallei
- Ernst-Berl-Institute for Chemical Engineering and Macromolecular Chemistry , Technische Universität Darmstadt , Alarich-Weiss-Straße 4 , D-64287 Darmstadt , Germany
| | - Dominik Wöll
- Institute of Physical Chemistry , RWTH Aachen University , Landoltweg 2 , 52056 Aachen , Germany
| | - Patrick van Rijn
- Department of Biomedical Engineering-FB40 , University of Groningen , University Medical Center Groningen , A. Deusinglaan 1 , Groningen , 9713 AV , The Netherlands
| | - Felix A Plamper
- Institute of Physical Chemistry , RWTH Aachen University , Landoltweg 2 , 52056 Aachen , Germany
- Institute of Physical Chemistry , TU Bergakademie Freiberg , Leipziger Straße 29 , 09599 Freiberg , Germany . ; ; Tel: +49-3731-39-2139
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14
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Palanisamy A, Sukhishvili SA. Swelling Transitions in Layer-by-Layer Assemblies of UCST Block Copolymer Micelles. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00519] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Anbazhagan Palanisamy
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Svetlana A. Sukhishvili
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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15
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Hansen KA, Blinco JP. Nitroxide radical polymers – a versatile material class for high-tech applications. Polym Chem 2018. [DOI: 10.1039/c7py02001e] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A comprehensive summary of synthetic strategies for the preparation of nitroxide radical polymer materials and a state-of-the-art perspective on their latest and most exciting applications.
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Affiliation(s)
- Kai-Anders Hansen
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - James P. Blinco
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
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16
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Boujioui F, Bertrand O, Ernould B, Brassinne J, Janoschka T, Schubert US, Vlad A, Gohy JF. One-pot synthesis of electro-active polymer gels via Cu(0)-mediated radical polymerization and click chemistry. Polym Chem 2017. [DOI: 10.1039/c6py01807f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Electro-active polymer gels are prepared via one-pot Cu(0)-mediated radical polymerization and click chemistry.
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Affiliation(s)
- Fadoi Boujioui
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Olivier Bertrand
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Bruno Ernould
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Jérémy Brassinne
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Tobias Janoschka
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena)
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena)
| | - Alexandru Vlad
- Institute of condensed Matter and Nanoscience (IMCN)
- Molecules
- Solids and Reactivity (MOST)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
| | - Jean-François Gohy
- Institute of Condensed Matter and Nanoscience (IMCN)
- Bio- and Soft Matter (BSMA)
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
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17
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Abstract
In this mini-review, we discuss multi-stimuli-responsive polymers, which exhibit upper critical solution temperature (UCST) behavior mainly in aqueous solutions, and focus on examples where counter ions, electricity, light, or pH influence the thermoresponsiveness of these polymers.
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Affiliation(s)
- Jukka Niskanen
- Laboratory of Polymer Chemistry
- Department of Chemistry
- University of Helsinki
- 00014 Helsinki
- Finland
| | - Heikki Tenhu
- Laboratory of Polymer Chemistry
- Department of Chemistry
- University of Helsinki
- 00014 Helsinki
- Finland
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18
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Abstract
We present an overview of the synthetic strategies and methodologies for stable organic radical polymers, and summarise their applications in diverse areas.
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Affiliation(s)
- Kai Zhang
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- Brisbane 4072
- Australia
| | - Michael J. Monteiro
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- Brisbane 4072
- Australia
| | - Zhongfan Jia
- Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- Brisbane 4072
- Australia
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