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Pechar M, Král V, Kracíková L, Androvič L, Hrdá E, Pola R, Pytlíková S, Studenovský M, Kostka L, Šubr V, Etrych T, Kočková O, Marianne Ferreira Mendes J, Fábry M, Laga R. Tumor-specific targeting of polymer drug delivery systems with recombinant proteins bound via tris(nitrilotriacetic acid). Int J Pharm 2023; 648:123619. [PMID: 37979631 DOI: 10.1016/j.ijpharm.2023.123619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/15/2023] [Indexed: 11/20/2023]
Abstract
Antibody-mediated targeting is an efficient strategy to enhance the specificity and selectivity of polymer nanomedicines towards the target site, typically a tumor. However, direct covalent coupling of an antibody with a polymer usually results in a partial damage of the antibody binding site accompanied with a compromised biological activity. Here, an original solution based on well-defined non-covalent interactions between tris-nitrilotriacetic acid (trisNTA) and hexahistidine (His-tag) groups, purposefully introduced to the structure of each macromolecule, is described. Specifically, trisNTA groups were attached along the chains of a hydrophilic statistical copolymer based on N-(2-hydroxypropyl)methacrylamide (HPMA), and at the end or along the chains of thermo-responsive di-block copolymers based on N-isopropylmethacrylamide (NIPMAM) and HPMA; His-tag was incorporated to the structure of a recombinant single chain fragment of an anti-GD2 monoclonal antibody (scFv-GD2). Static and dynamic light scattering analyses confirmed that mixing of polymer with scFv-GD2 led to the formation of polymer/scFv-GD2 complexes; those prepared from thermo-responsive polymers formed stable micelles at 37 °C. Flow cytometry and fluorescence microscopy clearly demonstrated antigen-specific binding of the prepared complexes to GD2 positive murine T-cell lymphoma cells EL-4 and human neuroblastoma cells UKF-NB3, while no interaction with GD2 negative murine fibroblast cells NIH-3T3 was observed. These non-covalent polymer protein complexes represent a new generation of highly specific actively targeted polymer therapeutics or diagnostics.
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Affiliation(s)
- Michal Pechar
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Vlastimil Král
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 160 00 10 Prague 6, Czech Republic
| | - Lucie Kracíková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Ladislav Androvič
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Eliška Hrdá
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Robert Pola
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Sára Pytlíková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Martin Studenovský
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Libor Kostka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Vladimír Šubr
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Olga Kočková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic
| | - Jessica Marianne Ferreira Mendes
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 160 00 10 Prague 6, Czech Republic
| | - Milan Fábry
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 160 00 10 Prague 6, Czech Republic
| | - Richard Laga
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00 Prague 6, Czech Republic.
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Henschel C, Schanzenbach D, Laschewsky A, Ko CH, Papadakis CM, Müller-Buschbaum P. Thermoresponsive and co-nonsolvency behavior of poly(N-vinyl isobutyramide) and poly(N-isopropyl methacrylamide) as poly(N-isopropyl acrylamide) analogs in aqueous media. Colloid Polym Sci 2023. [DOI: 10.1007/s00396-023-05083-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Sets of the nonionic polymers poly(N-vinyl isobutyramide) (pNVIBAm) and poly(N-isopropyl methacrylamide) (pNIPMAm) are synthesized by radical polymerization covering the molar mass range from about 20,000 to 150,000 kg mol−1, and their thermoresponsive and solvent-responsive behaviors in aqueous solution are studied. Both polymers feature a lower critical solution temperature (LCST) apparently of the rare so-called type II, as characteristic for their well-studied analogue poly(N-isopropyl acrylamide) (pNIPAm). Moreover, in analogy to pNIPAm, both polymers exhibit co-nonsolvency behavior in mixtures of water with several co-solvents, including short-chain alcohols as well as a range of polar aprotic solvents. While the cloud points of the aqueous solutions are a few degrees higher than those for pNIPAm and increase in the order pNIPAm < pNVIBAm < pNIPMAm, the co-nonsolvency behavior becomes less pronounced in the order pNIPAm > pNVIBAm > pNIPMAm. Exceptionally, pNIPMAm does not show co-nonsolvency in mixtures of water and N,N-dimethylformamide.
Graphical Abstract
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Wang P, Geiger C, Kreuzer LP, Widmann T, Reitenbach J, Liang S, Cubitt R, Henschel C, Laschewsky A, Papadakis CM, Müller-Buschbaum P. Poly(sulfobetaine)-Based Diblock Copolymer Thin Films in Water/Acetone Atmosphere: Modulation of Water Hydration and Co-nonsolvency-Triggered Film Contraction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6934-6948. [PMID: 35609178 DOI: 10.1021/acs.langmuir.2c00451] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The water swelling and subsequent solvent exchange including co-nonsolvency behavior of thin films of a doubly thermo-responsive diblock copolymer (DBC) are studied via spectral reflectance, time-of-flight neutron reflectometry, and Fourier transform infrared spectroscopy. The DBC consists of a thermo-responsive zwitterionic (poly(4-((3-methacrylamidopropyl) dimethylammonio) butane-1-sulfonate)) (PSBP) block, featuring an upper critical solution temperature transition in aqueous media but being insoluble in acetone, and a nonionic poly(N-isopropylmethacrylamide) (PNIPMAM) block, featuring a lower critical solution temperature transition in water, while being soluble in acetone. Homogeneous DBC films of 50-100 nm thickness are first swollen in saturated water vapor (H2O or D2O), before they are subjected to a contraction process by exposure to mixed saturated water/acetone vapor (H2O or D2O/acetone-d6 = 9:1 v/v). The affinity of the DBC film toward H2O is stronger than for D2O, as inferred from the higher film thickness in the swollen state and the higher absorbed water content, thus revealing a pronounced isotope sensitivity. During the co-solvent-induced switching by mixed water/acetone vapor, a two-step film contraction is observed, which is attributed to the delayed expulsion of water molecules and uptake of acetone molecules. The swelling kinetics are compared for both mixed vapors (H2O/acetone-d6 and D2O/acetone-d6) and with those of the related homopolymer films. Moreover, the concomitant variations of the local environment around the hydrophilic groups located in the PSBP and PNIPMAM blocks are followed. The first contraction step turns out to be dominated by the behavior of the PSBP block, whereas the second one is dominated by the PNIPMAM block. The unusual swelling and contraction behavior of the latter block is attributed to its co-nonsolvency behavior. Furthermore, we observe cooperative hydration effects in the DBC films, that is, both polymer blocks influence each other's solvation behavior.
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Affiliation(s)
- Peixi Wang
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Christina Geiger
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Lucas P Kreuzer
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Tobias Widmann
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Julija Reitenbach
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Suzhe Liang
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Robert Cubitt
- Institut-Laue-Langevin, 6 rue Jules Horowitz, Grenoble 38000, France
| | - Cristiane Henschel
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Street 24-25, Potsdam-Golm 14476, Germany
| | - André Laschewsky
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Street 24-25, Potsdam-Golm 14476, Germany
- Fraunhofer Institut für Angewandte Polymerforschung, Geiselberg Street 69, Potsdam-Golm 14476, Germany
| | - Christine M Papadakis
- Fachgebiet Physik weicher Materie, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Street 1, Garching 85748, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenberg Street 1, Garching 85748, Germany
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Engineering network entanglement of functionalized graphene oxide/poly(acrylamide) nanocomposites for enhanced oil recovery. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Akar I, Foster JC, Leng X, Pearce AK, Mathers RT, O’Reilly RK. Log Poct/SA Predicts the Thermoresponsive Behavior of P(DMA- co-RA) Statistical Copolymers. ACS Macro Lett 2022; 11:498-503. [PMID: 35575334 PMCID: PMC9022432 DOI: 10.1021/acsmacrolett.1c00776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Polymers that exhibit
a lower critical solution temperature (LCST)
have been of great interest for various biological applications such
as drug or gene delivery, controlled release systems, and biosensing.
Tuning the LCST behavior through control over polymer composition
(e.g., upon copolymerization of monomers with different hydrophobicity)
is a widely used method, as the phase transition is greatly affected
by the hydrophilic/hydrophobic balance of the copolymers. However,
the lack of a general method that relates copolymer hydrophobicity
to their temperature response leads to exhaustive experiments when
seeking to obtain polymers with desired properties. This is particularly
challenging when the target copolymers are comprised of monomers that
individually form nonresponsive homopolymers, that is, only when copolymerized
do they display thermoresponsive behavior. In this study, we sought
to develop a predictive relationship between polymer hydrophobicity
and cloud point temperature (TCP). A series
of statistical copolymers were synthesized based on hydrophilic N,N-dimethyl acrylamide (DMA) and hydrophobic
alkyl acrylate monomers, and their hydrophobicity was compared using
surface area-normalized octanol/water partition coefficients (Log Poct/SA). Interestingly, a correlation between
the Log Poct/SA of the copolymers and
their TCPs was observed for the P(DMA-co-RA) copolymers, which allowed TCP prediction of a demonstrative copolymer P(DMA-co-MMA). These results highlight the strong potential of this computational
tool to improve the rational design of copolymers with desired temperature
responses prior to synthesis.
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Affiliation(s)
- Irem Akar
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Jeffrey C. Foster
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Xiyue Leng
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Amanda K. Pearce
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Robert T. Mathers
- Department of Chemistry, Pennsylvania State University, New Kensington, Pennsylvania 15068, United States
| | - Rachel K. O’Reilly
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
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Ortega-García A, Martínez-Bernal BG, Ceja I, Mendizábal E, Puig-Arévalo JE, Pérez-Carrillo LA. Drug Delivery from Stimuli-Responsive Poly(N-isopropylacrylamide-co-N-isopropylmethacrylamide)/Chitosan Core/Shell Nanohydrogels. Polymers (Basel) 2022; 14:522. [PMID: 35160511 PMCID: PMC8840617 DOI: 10.3390/polym14030522] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 01/25/2022] [Indexed: 11/18/2022] Open
Abstract
The synthesis of stimulus-responsive poly(N-isopropylacrylamide-co-N-isopropylmethacrylamide)/chitosan core/shell nanohydrogels made by batch emulsion polymerization in the presence of chitosan (CS) micelles is reported. The ratio of monomers required to obtain copolymers with a volume phase transition temperature (TVPT) in the range of the temperatures observed in the human body in response to an infection (38 to 40 °C) was estimated with the Fox equation. The conversion was determined by gravimetry; mean particle size, size distribution, and thermal response were measured by quasi-elastic light scattering (QLS). The core/shell structure was confirmed by TEM, and FTIR showed the presence of N-isopropyl acrilamide (NIPA), N-isopropyl methacrylamide (NIPMA), and CS in the nanohydrogels. The nanohydrogels were loaded with the drug doxycycline hyclate, and their release kinetic profile was determined at pH = 2.0 and 7.4 at their volume phase transition temperatures (TVPT). A higher amount of drug was released at acidic pH. Some mathematical models described in the literature were used to fit the experimental drug release data.
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Affiliation(s)
- Andrés Ortega-García
- Chemical Engineering Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico; (A.O.-G.); (B.G.M.-B.); (J.E.P.-A.)
| | - Bryan Giovanny Martínez-Bernal
- Chemical Engineering Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico; (A.O.-G.); (B.G.M.-B.); (J.E.P.-A.)
| | - Israel Ceja
- Physics Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara, Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico;
| | - Eduardo Mendizábal
- Chemistry Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico;
| | - Jorge Emilio Puig-Arévalo
- Chemical Engineering Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico; (A.O.-G.); (B.G.M.-B.); (J.E.P.-A.)
| | - Lourdes Adriana Pérez-Carrillo
- Chemical Engineering Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara (UdG), Guadalajara 44100, Jalisco, Mexico; (A.O.-G.); (B.G.M.-B.); (J.E.P.-A.)
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7
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Nakielski P, Pawłowska S, Rinoldi C, Ziai Y, De Sio L, Urbanek O, Zembrzycki K, Pruchniewski M, Lanzi M, Salatelli E, Calogero A, Kowalewski TA, Yarin AL, Pierini F. Multifunctional Platform Based on Electrospun Nanofibers and Plasmonic Hydrogel: A Smart Nanostructured Pillow for Near-Infrared Light-Driven Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54328-54342. [PMID: 33238095 DOI: 10.1021/acsami.0c13266] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Multifunctional nanomaterials with the ability to respond to near-infrared (NIR) light stimulation are vital for the development of highly efficient biomedical nanoplatforms with a polytherapeutic approach. Inspired by the mesoglea structure of jellyfish bells, a biomimetic multifunctional nanostructured pillow with fast photothermal responsiveness for NIR light-controlled on-demand drug delivery is developed. We fabricate a nanoplatform with several hierarchical levels designed to generate a series of controlled, rapid, and reversible cascade-like structural changes upon NIR light irradiation. The mechanical contraction of the nanostructured platform, resulting from the increase of temperature to 42 °C due to plasmonic hydrogel-light interaction, causes a rapid expulsion of water from the inner structure, passing through an electrospun membrane anchored onto the hydrogel core. The mutual effects of the rise in temperature and water flow stimulate the release of molecules from the nanofibers. To expand the potential applications of the biomimetic platform, the photothermal responsiveness to reach the typical temperature level for performing photothermal therapy (PTT) is designed. The on-demand drug model penetration into pig tissue demonstrates the efficiency of the nanostructured platform in the rapid and controlled release of molecules, while the high biocompatibility confirms the pillow potential for biomedical applications based on the NIR light-driven multitherapy strategy.
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Affiliation(s)
- Paweł Nakielski
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Sylwia Pawłowska
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Chiara Rinoldi
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Yasamin Ziai
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Luciano De Sio
- Research Center for Biophotonics and Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina 04100, Italy
| | - Olga Urbanek
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Krzysztof Zembrzycki
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Michał Pruchniewski
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Massimiliano Lanzi
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum - University of Bologna, Bologna 40136, Italy
| | - Elisabetta Salatelli
- Department of Industrial Chemistry "Toso Montanari", Alma Mater Studiorum - University of Bologna, Bologna 40136, Italy
| | - Antonella Calogero
- Research Center for Biophotonics and Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 79, Latina 04100, Italy
| | - Tomasz A Kowalewski
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
| | - Alexander L Yarin
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, 842 W. Taylor Street, Chicago, Illinois 60607-7022, United States
| | - Filippo Pierini
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw 02-106, Poland
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Poly(N,N-bis(2-methoxyethyl)acrylamide), a thermoresponsive non-ionic polymer combining the amide and the ethyleneglycolether motifs. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04701-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractPoly(N,N-bis(2-methoxyethyl)acrylamide) (PbMOEAm) featuring two classical chemical motifs from non-ionic water-soluble polymers, namely, the amide and ethyleneglycolether moieties, was synthesized by reversible addition fragmentation transfer (RAFT) polymerization. This tertiary polyacrylamide is thermoresponsive exhibiting a lower critical solution temperature (LCST)–type phase transition. A series of homo- and block copolymers with varying molar masses but low dispersities and different end groups were prepared. Their thermoresponsive behavior in aqueous solution was analyzed via turbidimetry and dynamic light scattering (DLS). The cloud points (CP) increased with increasing molar masses, converging to 46 °C for 1 wt% solutions. This rise is attributed to the polymers’ hydrophobic end groups incorporated via the RAFT agents. When a surfactant-like strongly hydrophobic end group was attached using a functional RAFT agent, CP was lowered to 42 °C, i.e., closer to human body temperature. Also, the effect of added salts, in particular, the role of the Hofmeister series, on the phase transition of PbMOEAm was investigated, exemplified for the kosmotropic fluoride, intermediate chloride, and chaotropic thiocyanate anions. A pronounced shift of the cloud point of about 10 °C to lower or higher temperatures was observed for 0.2 M fluoride and thiocyanate, respectively. When PbMOEAm was attached to a long hydrophilic block of poly(N,N-dimethylacrylamide) (PDMAm), the cloud points of these block copolymers were strongly shifted towards higher temperatures. While no phase transition was observed for PDMAm-b-pbMOEAm with short thermoresponsive blocks, block copolymers with about equally sized PbMOEAm and PDMAm blocks underwent the coil-to-globule transition around 60 °C.
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Abebe Alemayehu Y, Tewabe Gebeyehu B, Cheng CC. Photosensitive Supramolecular Micelles with Complementary Hydrogen Bonding Motifs To Improve the Efficacy of Cancer Chemotherapy. Biomacromolecules 2019; 20:4535-4545. [DOI: 10.1021/acs.biomac.9b01322] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Vishnevetskaya NS, Hildebrand V, Nizardo NM, Ko CH, Di Z, Radulescu A, Barnsley LC, Müller-Buschbaum P, Laschewsky A, Papadakis CM. All-In-One "Schizophrenic" Self-Assembly of Orthogonally Tuned Thermoresponsive Diblock Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6441-6452. [PMID: 31017439 DOI: 10.1021/acs.langmuir.9b00241] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Smart, fully orthogonal switching was realized in a highly biocompatible diblock copolymer system with variable trigger-induced aqueous self-assembly. The polymers are composed of nonionic and zwitterionic blocks featuring lower and upper critical solution temperatures (LCSTs and UCSTs). In the system investigated, diblock copolymers from poly( N-isopropyl methacrylamide) (PNIPMAM) and a poly(sulfobetaine methacrylamide), systematic variation of the molar mass of the latter block allowed for shifting the UCST of the latter above the LCST of the PNIPMAM block in a salt-free condition. Thus, successive thermal switching results in "schizophrenic" micellization, in which the roles of the hydrophobic core block and the hydrophilic shell block are interchanged depending on the temperature. Furthermore, by virtue of the strong electrolyte-sensitivity of the zwitterionic polysulfobetaine block, we succeeded to shift its UCST below the LCST of the PNIPMAM block by adding small amounts of an electrolyte, thus inverting the pathway of switching. This superimposed orthogonal switching by electrolyte addition enabled us to control the switching scenarios between the two types of micelles (i) via an insoluble state, if the LCST-type cloud point is below the UCST-type cloud point, which is the case at low salt concentrations or (ii) via a molecularly dissolved state, if the LCST-type cloud point is above the UCST-type cloud point, which is the case at high salt concentrations. Systematic variation of the block lengths allowed for verifying the anticipated behavior and identifying the molecular architecture needed. The versatile and tunable self-assembly offers manifold opportunities, for example, for smart emulsifiers or for sophisticated carrier systems.
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Affiliation(s)
- Natalya S Vishnevetskaya
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
| | - Viet Hildebrand
- Institut für Chemie , Universität Potsdam , Karl-Liebknecht- Straße 24-25 , 14476 Potsdam-Golm , Germany
| | - Noverra M Nizardo
- Institut für Chemie , Universität Potsdam , Karl-Liebknecht- Straße 24-25 , 14476 Potsdam-Golm , Germany
| | - Chia-Hsin Ko
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
| | - Zhenyu Di
- Forschungszentrum Jülich GmbH , Jülich Centre for Neutron Science at MLZ , Lichtenbergstr. 1 , 85748 Garching , Germany
| | - Aurel Radulescu
- Forschungszentrum Jülich GmbH , Jülich Centre for Neutron Science at MLZ , Lichtenbergstr. 1 , 85748 Garching , Germany
| | - Lester C Barnsley
- Forschungszentrum Jülich GmbH , Jülich Centre for Neutron Science at MLZ , Lichtenbergstr. 1 , 85748 Garching , Germany
| | - Peter Müller-Buschbaum
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
- Heinz Maier-Leibnitz Zentrum (MLZ) , Lichtenbergstr. 1 , 85748 Garching , Germany
| | - André Laschewsky
- Institut für Chemie , Universität Potsdam , Karl-Liebknecht- Straße 24-25 , 14476 Potsdam-Golm , Germany
- Fraunhofer-Institut für Angewandte Polymerforschung , Geiselbergstr. 69 , 14476 Potsdam-Golm , Germany
| | - Christine M Papadakis
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Straße 1 , 85748 Garching , Germany
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Lee J, Lee B, Park J, Oh J, Kim T, Seo M, Kim SY. Synthesis and phase transition behavior of well-defined Poly(arylene ether sulfone)s by chain growth condensation polymerization in organic media. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.08.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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12
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Kozbekçi C, Şenkal BF, Erbil C. Compressive moduli and network parameters of N
-isopropylacrylamide hydrogels copolymerized by monoesters of itaconic acid and crosslinked with tetraallylammonium bromide. J Appl Polym Sci 2017. [DOI: 10.1002/app.45039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cansu Kozbekçi
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
| | - B. Filiz Şenkal
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
| | - Candan Erbil
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
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13
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Wang WJ, Qiu ZS, Zhong HY, Huang WA, Dai WH. Thermo-sensitive polymer nanospheres as a smart plugging agent for shale gas drilling operations. PETROLEUM SCIENCE 2016; 14:116-125. [PMID: 28239393 PMCID: PMC5306092 DOI: 10.1007/s12182-016-0140-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 06/06/2023]
Abstract
Emulsifier-free poly(methyl methacrylate-styrene) [P(MMA-St)] nanospheres with an average particle size of 100 nm were synthesized in an isopropyl alcohol-water medium by a solvothermal method. Then, through radical graft copolymerization of thermo-sensitive monomer N-isopropylacrylamide (NIPAm) and hydrophilic monomer acrylic acid (AA) onto the surface of P(MMA-St) nanospheres at 80 °C, a series of thermo-sensitive polymer nanospheres, named SD-SEAL with different lower critical solution temperatures (LCST), were prepared by adjusting the mole ratio of NIPAm to AA. The products were characterized by Fourier transform infrared spectroscopy, transmission electron microscopy, thermogravimetric analysis, particle size distribution, and specific surface area analysis. The temperature-sensitive behavior was studied by light transmittance tests, while the sealing performance was investigated by pressure transmission tests with Lungmachi Formation shales. The experimental results showed that the synthesized nanoparticles are sensitive to temperature and had apparent LCST values which increased with an increase in hydrophilic monomer AA. When the temperature was higher than its LCST value, SD-SEAL played a dual role of physical plugging and chemical inhibition, slowed down pressure transmission, and reduced shale permeability remarkably. The plugged layer of shale was changed to being hydrophobic, which greatly improved the shale stability.
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Affiliation(s)
- Wei-Ji Wang
- School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580 Shandong China
| | - Zheng-Song Qiu
- School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580 Shandong China
| | - Han-Yi Zhong
- School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580 Shandong China
| | - Wei-An Huang
- School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580 Shandong China
| | - Wen-Hao Dai
- School of Petroleum Engineering, China University of Petroleum, Qingdao, 266580 Shandong China
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14
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Schmid AJ, Dubbert J, Rudov AA, Pedersen JS, Lindner P, Karg M, Potemkin II, Richtering W. Multi-Shell Hollow Nanogels with Responsive Shell Permeability. Sci Rep 2016; 6:22736. [PMID: 26984478 PMCID: PMC4794761 DOI: 10.1038/srep22736] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/18/2016] [Indexed: 12/23/2022] Open
Abstract
We report on hollow shell-shell nanogels with two polymer shells that have different volume phase transition temperatures. By means of small angle neutron scattering (SANS) employing contrast variation and molecular dynamics (MD) simulations we show that hollow shell-shell nanocontainers are ideal systems for controlled drug delivery: The temperature responsive swelling of the inner shell controls the uptake and release, while the thermoresponsive swelling of the outer shell controls the size of the void and the colloidal stability. At temperatures between 32 °C < T < 42 °C, the hollow nanocontainers provide a significant void, which is even larger than the initial core size of the template, and they possess a high colloidal stability due to the steric stabilization of the swollen outer shell. Computer simulations showed, that temperature induced switching of the permeability of the inner shell allows for the encapsulation in and release of molecules from the cavity.
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Affiliation(s)
- Andreas J Schmid
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany
| | - Janine Dubbert
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany
| | - Andrey A Rudov
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russian Federation.,DWI-Leibnitz Institute for Interactive Materials e.V., 52056 Aachen, Germany
| | - Jan Skov Pedersen
- Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, 8000 Aarhus, Denmark
| | - Peter Lindner
- Institut Laue Langevin (ILL), 71 avenue des Martyrs, 38000 Grenoble, France
| | - Matthias Karg
- Physical Chemistry I, University of Bayreuth, 85440 Bayreuth, Germany
| | - Igor I Potemkin
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russian Federation.,DWI-Leibnitz Institute for Interactive Materials e.V., 52056 Aachen, Germany
| | - Walter Richtering
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany
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15
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Grinberg VY, Senin AA, Grinberg NV, Burova TV, Dubovik AS, Potekhin SA, Erukhimovich IY. High pressure effects under phase separation of aqueous solutions of poly(N-isopropylacryamide): A HS-DSC study. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Hirano T, Segata T, Hashimoto J, Miwa Y, Oshimura M, Ute K. Syndiotactic- and heterotactic-specific radical polymerization of N-n-propylmethacrylamide complexed with alkali metal ions. Polym Chem 2015. [DOI: 10.1039/c5py00755k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Addition of Li+ enhanced the radical polymerization of N-n-propylmethacrylamide, in which the stoichiometry of the monomer–Li+ complexes determined the stereospecificity of the radical polymerization.
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Affiliation(s)
- Tomohiro Hirano
- Department of Chemical Science and Technology
- Institute of Technology and Science
- Tokushima University
- Tokushima 770-8506
- Japan
| | - Tadashi Segata
- Department of Chemical Science and Technology
- Institute of Technology and Science
- Tokushima University
- Tokushima 770-8506
- Japan
| | - Junpei Hashimoto
- Department of Chemical Science and Technology
- Institute of Technology and Science
- Tokushima University
- Tokushima 770-8506
- Japan
| | - Yohei Miwa
- Department of Chemistry and Biomolecular Science
- Faculty of Engineering
- Gifu University
- Gifu 501-1193
- Japan
| | - Miyuki Oshimura
- Department of Chemical Science and Technology
- Institute of Technology and Science
- Tokushima University
- Tokushima 770-8506
- Japan
| | - Koichi Ute
- Department of Chemical Science and Technology
- Institute of Technology and Science
- Tokushima University
- Tokushima 770-8506
- Japan
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17
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Fan G, Guo J, Dong M, Feng Y. Thermothickening Behavior of Graft Copolymers Containing Poly(N-isopropylacrylamide-co-N,N-dimethylacrylamide) Side Chains in Aqueous Solution. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.953370] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Graillot A, Monge S, Faur C, Bouyer D, Duquesnoy C, Robin JJ. How to easily adapt cloud points of statistical thermosensitive polyacrylamide-based copolymers knowing reactivity ratios. RSC Adv 2014. [DOI: 10.1039/c4ra00140k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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