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Sun T, Krishnan V, Pan DC, Filippov SK, Ravid S, Sarode A, Kim J, Zhang Y, Power C, Aday S, Guo J, Karp JM, McDannold NJ, Mitragotri SS. Ultrasound-mediated delivery of flexibility-tunable polymer drug conjugates for treating glioblastoma. Bioeng Transl Med 2023; 8:e10408. [PMID: 36925708 PMCID: PMC10013755 DOI: 10.1002/btm2.10408] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/07/2022] [Accepted: 05/14/2022] [Indexed: 11/21/2022] Open
Abstract
Effective chemotherapy delivery for glioblastoma multiforme (GBM) is limited by drug transport across the blood-brain barrier and poor efficacy of single agents. Polymer-drug conjugates can be used to deliver drug combinations with a ratiometric dosing. However, the behaviors and effectiveness of this system have never been well investigated in GBM models. Here, we report flexible conjugates of hyaluronic acid (HA) with camptothecin (CPT) and doxorubicin (DOX) delivered into the brain using focused ultrasound (FUS). In vitro toxicity assays reveal that DOX-CPT exhibited synergistic action against GBM in a ratio-dependent manner when delivered as HA conjugates. FUS is employed to improve penetration of DOX-HA-CPT conjugates into the brain in vivo in a murine GBM model. Small-angle x-ray scattering characterizations of the conjugates show that the DOX:CPT ratio affects the polymer chain flexibility. Conjugates with the highest flexibility yield the highest efficacy in treating mouse GBM in vivo. Our results demonstrate the association of FUS-enhanced delivery of combination chemotherapy and the drug-ratio-dependent flexibility of the HA conjugates. Drug ratio in the polymer nanocomplex may thus be employed as a key factor to modulate FUS drug delivery efficiency via controlling the polymer flexibility. Our characterizations also highlight the significance of understanding the flexibility of drug carriers in ultrasound-mediated drug delivery systems.
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Affiliation(s)
- Tao Sun
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
- Focused Ultrasound Laboratory, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Vinu Krishnan
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
| | - Daniel C. Pan
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
| | - Sergey K. Filippov
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Present address:
Pharmaceutical Sciences LaboratoryÅbo Akademi University, Turku BioscienceTurkuFinland
| | - Sagi Ravid
- Focused Ultrasound Laboratory, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Apoorva Sarode
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
| | - Jayoung Kim
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
| | - Yongzhi Zhang
- Focused Ultrasound Laboratory, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Chanikarn Power
- Focused Ultrasound Laboratory, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Sezin Aday
- Department of AnesthesiologyPerioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Center for Nanomedicine, Harvard Stem Cell Institute, Brigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Harvard‐MIT Division of Health Sciences and TechnologyCambridgeMassachusettsUSA
- Proteomics Platform, Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Junling Guo
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
- Present address:
College of Biomass Science and EngineeringSichuan UniversityChengduSichuanChina
| | - Jeffrey M. Karp
- Department of AnesthesiologyPerioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Center for Nanomedicine, Harvard Stem Cell Institute, Brigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Harvard‐MIT Division of Health Sciences and TechnologyCambridgeMassachusettsUSA
- Proteomics Platform, Broad Institute of MIT and HarvardCambridgeMassachusettsUSA
| | - Nathan J. McDannold
- Focused Ultrasound Laboratory, Department of RadiologyBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Samir S. Mitragotri
- John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired Engineering, Harvard UniversityBostonMassachusettsUSA
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2
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Synthesis of Magneto-Controllable Polymer Nanocarrier Based on Poly(N-isopropylacrylamide-co-acrylic Acid) for Doxorubicin Immobilization. Polymers (Basel) 2022; 14:polym14245440. [PMID: 36559806 PMCID: PMC9784437 DOI: 10.3390/polym14245440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
In this work, the preparation procedure and properties of anionic magnetic microgels loaded with antitumor drug doxorubicin are described. The functional microgels were produced via the in situ formation of iron nanoparticles in an aqueous dispersion of polymer microgels based on poly(N-isopropylacrylamide-co-acrylic acid) (PNIPAM-PAA). The composition and morphology of the resulting composite microgels were studied by means of X-ray diffraction, Mössbauer spectroscopy, IR spectroscopy, scanning electron microscopy, atomic-force microscopy, laser microelectrophoresis, and static and dynamic light scattering. The forming nanoparticles were found to be β-FeO(OH). In physiological pH and ionic strength, the obtained composite microgels were shown to possess high colloid stability. The average size of the composites was 200 nm, while the zeta-potential was -27.5 mV. An optical tweezers study has demonstrated the possibility of manipulation with microgel using external magnetic fields. Loading of the composite microgel with doxorubicin did not lead to any change in particle size and colloidal stability. Magnetic-driven interaction of the drug-loaded microgel with model cell membranes was demonstrated by fluorescence microscopy. The described magnetic microgels demonstrate the potential for the controlled delivery of biologically active substances.
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Makhayeva DN, Filippov SK, Yestemes SS, Irmukhametova GS, Khutoryanskiy VV. Polymeric iodophors with poly(2-ethyl-2-oxazoline) and poly(N-vinylpyrrolidone): optical, hydrodynamic, thermodynamic, and antimicrobial properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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4
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Filippov SK, Domnina N, Vol'eva V. Future and the past of polymeric antioxidants. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sergey K. Filippov
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering Åbo Akademi University Turku Finland
- Department of Chemistry and Chemical Technology Al‐Farabi Kazakh National University Almaty Kazakhstan
| | - Nina Domnina
- Department of Macromolecular Compounds Chemistry St. Petersburg State University, Institute of Chemistry St. Petersburg Russia
| | - Violetta Vol'eva
- Department of Antioxidant Chemistry Emanuel Institute of Biochemical Physics of Russian Academy of Sciences Moscow Russia
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5
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A molecular brush with thermoresponsive poly(2-ethyl-2-oxazoline) side chains: a structural investigation. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04704-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
AbstractThe thermoresponsive behavior of a poly(2-oxazoline)-based molecular brush is investigated in aqueous solution. The molecular brush under study, PiPOx100-g-PEtOx17, has a poly(2-isopropenyl-2-oxazoline) (PiPOx) backbone grafted with thermoresponsive poly(2-ethyl-2-oxazoline) (PEtOx) side chains. Since the backbone degree of polymerization is only a factor of ~ 6 higher than the ones of the side chains, it features an architecture between a star-like polymer and a comb-like polymer. Its aqueous solution exhibits lower critical solution temperature (LCST) behavior with a cloud point temperature Tcp = 40.5 °C at 30 g L−1. The temperature-dependent structural evolution is disclosed using dynamic light scattering (DLS) and small-angle neutron scattering (SANS). An increase of the molecular brush size is found upon heating from room temperature to Tcp, which is attributed to the extension of the backbone resulting from the dehydration and collapse of the side chains. Above Tcp, the size decreases again, which indicates the collapse of the whole molecular brush. Large aggregates are found to be present in the solution in the temperature range 25–50 °C. These become more compact, as the temperature is increased across Tcp.
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Maleimide-functionalised PLGA-PEG nanoparticles as mucoadhesive carriers for intravesical drug delivery. Eur J Pharm Biopharm 2019; 143:24-34. [PMID: 31419584 DOI: 10.1016/j.ejpb.2019.08.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/24/2019] [Accepted: 08/12/2019] [Indexed: 12/17/2022]
Abstract
Low permeability of the urinary bladder epithelium, poor retention of the chemotherapeutic agents due to dilution and periodic urine voiding as well as intermittent catheterisations are the major limitations of intravesical drug delivery used in the treatment of bladder cancer. In this work, maleimide-functionalised poly(lactide-co-glycolide)-block-poly(ethylene glycol) (PLGA-PEG-Mal) nanoparticles were developed. Their physicochemical characteristics, including morphology, architecture and molecular parameters have been investigated by means of dynamic light scattering, transmission electron microscopy and small-angle neutron scattering techniques. It was established that the size of nanoparticles was dependent on the solvent used in their preparation and molecular weight of PEG, for example, 105 ± 1 nm and 68 ± 1 nm particles were formed from PLGA20K-PEG5K in dimethyl sulfoxide and acetone, respectively. PLGA-PEG-Mal nanoparticles were explored as mucoadhesive formulations for drug delivery to the urinary bladder. The retention of fluorescein-loaded nanoparticles on freshly excised lamb bladder mucosa in vitro was evaluated and assessed using a flow-through fluorescence technique and Wash Out50 (WO50) quantitative method. PLGA-PEG-Mal nanoparticles (NPs) exhibited greater retention on urinary bladder mucosa (WO50 = 15 mL) compared to maleimide-free NPs (WO50 = 5 mL). The assessment of the biocompatibility of PEG-Mal using the slug mucosal irritation test revealed that these materials are non-irritant to mucosal surfaces.
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7
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Atanase LI, Riess G. Self-Assembly of Block and Graft Copolymers in Organic Solvents: An Overview of Recent Advances. Polymers (Basel) 2018; 10:E62. [PMID: 30966101 PMCID: PMC6414829 DOI: 10.3390/polym10010062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 12/31/2022] Open
Abstract
This review is an attempt to update the recent advances in the self-assembly of amphiphilic block and graft copolymers. Their micellization behavior is highlighted for linear AB, ABC triblock terpolymers, and graft structures in non-aqueous selective polar and non-polar solvents, including solvent mixtures and ionic liquids. The micellar characteristics, such as particle size, aggregation number, and morphology, are examined as a function of the copolymers' architecture and molecular characteristics.
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Affiliation(s)
- Leonard Ionut Atanase
- Faculty of Dental Medicine, "Apollonia" University, 700399 Iasi, Romania.
- Research Institute "Academician Ioan Haulica", 700399 Iasi, Romania.
| | - Gerard Riess
- University of Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse, Laboratoire de Photochimie et d'Ingénierie Macromoléculaires, 68093 Mulhouse CEDEX, France.
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8
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Kermagoret A, Gigmes D. Combined nitroxide mediated radical polymerization techniques for block copolymer synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Qiu F, Huang Y, Zhu X. Fluorescent Unimolecular Conjugated Polymeric Micelles for Biological Applications. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500283] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Feng Qiu
- School of Chemical and Environmental Engineering; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 P. R. China
| | - Yu Huang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
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10
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Gromadzki D, Rychter P, Uchman M, Momekova D, Marcinkowski A, Koseva NS, El Fray M, Marić M. Multifunctional Amphiphilic Nanoparticles Featuring (Bio)Degradable Core and Dual-Responsive Shell as Biomedical Platforms for Controlled Release. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500235] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Daniel Gromadzki
- Department of Chemical Engineering; McGill Institute of Advanced Materials (MIAM); Centre for Self-Assembled Chemical Structures (CSACS)McGill University; 3610 University Street, Montréal H3A 2B2 Quebec Canada
- Institute of Polymers; Bulgarian Academy of Sciences; Acad. G. Bonchev Street, Block 103A 1113 Sofia Bulgaria
| | - Piotr Rychter
- Institute of Polymers; Bulgarian Academy of Sciences; Acad. G. Bonchev Street, Block 103A 1113 Sofia Bulgaria
| | - Mariusz Uchman
- Department of Physical and Macromolecular Chemistry; Faculty of Science; Charles University in Prague; Hlavova 2030 128 40 Prague 2 Czech Republic
| | - Denitsa Momekova
- Department of Pharmaceutical Technology and Biopharmaceutics; Faculty of Pharmacy; Medical University Sofia; 2 Dunav Street 1000 Sofia Bulgaria
| | - Andrzej Marcinkowski
- Centre of Carbon and Polymer Materials of the Polish Academy of Sciences; 34 M. Curie-Sklodowska 41-819 Zabrze Poland
| | - Neli S. Koseva
- Institute of Polymers; Bulgarian Academy of Sciences; Acad. G. Bonchev Street, Block 103A 1113 Sofia Bulgaria
| | - Miroslawa El Fray
- Polymer Institute; Division of Biomaterials and Microbiological Technologies; Nanotechnology Centre; West Pomeranian University of Technology; Szczecin Al. Piastów 45 70-311 Szczecin Poland
| | - Milan Marić
- Department of Chemical Engineering; McGill Institute of Advanced Materials (MIAM); Centre for Self-Assembled Chemical Structures (CSACS)McGill University; 3610 University Street, Montréal H3A 2B2 Quebec Canada
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11
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Pospisilova A, Filippov SK, Bogomolova A, Turner S, Sedlacek O, Matushkin N, Cernochova Z, Stepanek P, Hruby M. Glycogen-graft-poly(2-alkyl-2-oxazolines) – the new versatile biopolymer-based thermoresponsive macromolecular toolbox. RSC Adv 2014. [DOI: 10.1039/c4ra10315g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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12
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Bogomolova A, Keller S, Klingler J, Sedlak M, Rak D, Sturcova A, Hruby M, Stepanek P, Filippov SK. Self-assembly thermodynamics of pH-responsive amino-acid-based polymers with a nonionic surfactant. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11307-11318. [PMID: 25192406 DOI: 10.1021/la5031262] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The behavior of pH-responsive polymers poly(N-methacryloyl-l-valine) (P1), poly(N-methacryloyl-l-phenylalanine) (P2), and poly(N-methacryloylglycyne-l-leucine) (P3) has been studied in the presence of the nonionic surfactant Brij98. The pure polymers phase-separate in an acidic medium with critical pHtr values of 3.7, 5.5, and 3.4, respectively. The addition of the surfactant prevents phase separation and promotes reorganization of polymer molecules. The nature of the interaction between polymer and surfactant depends on the amino acid structure in the side chain of the polymer. This effect was investigated by dynamic light scattering, isothermal titration calorimetry, electrophoretic measurements, small-angle neutron scattering, and infrared spectroscopy. Thermodynamic analysis revealed an endothermic association reaction in P1/Brij98 mixture, whereas a strong exothermic effect was observed for P2/Brij98 and P3/Brij98. Application of regular solution theory for the analysis of experimental enthalpograms indicated dominant hydrophobic interactions between P1 and Brij98 and specific interactions for the P2/Brij98 system. Electrophoretic and dynamic light scattering measurements support the applicability of the theory to these cases. The specific interactions can be ascribed to hydrogen bonds formed between the carboxylic groups of the polymer and the oligo(ethylene oxide) head groups of the surfactant. Thus, differences in polymer-surfactant interactions between P1 and P2 polymers result in different structures of polymer-surfactant complexes. Specifically, small-angle neutron scattering revealed pearl-necklace complexes and "core-shell" structures for P1/Brij98 and P2/Brij98 systems, respectively. These results may help in the design of new pH-responsive site-specific micellar drug delivery systems or pH-responsive membrane-disrupting agents.
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Affiliation(s)
- Anna Bogomolova
- Institute of Macromolecular Chemistry AS CR, v.v.i, 162 06 Prague, Czech Republic
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13
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Sergeeva O, Vlasov PS, Domnina NS, Bogomolova A, Konarev PV, Svergun DI, Walterova Z, Horsky J, Stepanek P, Filippov SK. Novel thermosensitive telechelic PEGs with antioxidant activity: synthesis, molecular properties and conformational behaviour. RSC Adv 2014. [DOI: 10.1039/c4ra06978a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We report on the tailor-made polymer conjugates, which are highly compelling for biomedical applications due to their antioxidant activity and the adjustable thermosensitive properties.
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Affiliation(s)
- Olga Sergeeva
- Institute of Chemistry
- Saint-Petersburg State University
- Russia
| | - Petr S. Vlasov
- Institute of Chemistry
- Saint-Petersburg State University
- Russia
| | - Nina S. Domnina
- Institute of Chemistry
- Saint-Petersburg State University
- Russia
| | | | | | | | | | - Jiri Horsky
- Institute of Macromolecular Chemistry
- Prague, Czech Republic
| | - Petr Stepanek
- Institute of Macromolecular Chemistry
- Prague, Czech Republic
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14
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Bogomolova A, Hruby M, Panek J, Rabyk M, Turner S, Bals S, Steinhart M, Zhigunov A, Sedlacek O, Stepanek P, Filippov SK. Small-angle X-ray scattering and light scattering study of hybrid nanoparticles composed of thermoresponsive triblock copolymer F127 and thermoresponsive statistical polyoxazolines with hydrophobic moieties. J Appl Crystallogr 2013. [DOI: 10.1107/s0021889813027064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A combination of new thermoresponsive statistical polyoxazolines, poly[(2-butyl-2-oxazoline)-stat-(2-isopropyl-2-oxazoline)] [pBuOx-co-piPrOx], with different hydrophobic moieties and F127 surfactant as a template system for the creation of thermosensitive nanoparticles for radionuclide delivery has recently been tested [Pánek, Filippov, Hrubý, Rabyk, Bogomolova, Kučka & Stěpánek (2012).Macromol. Rapid Commun.33, 1683–1689]. It was shown that the presence of the thermosensitive F127 triblock copolymer in solution reduces nanoparticle size and polydispersity. This article focuses on a determination of the internal structure and solution properties of the nanoparticles in the temperature range from 288 to 312 K. Here, it is demonstrated that below the cloud point temperature (CPT) the polyoxazolines and F127 form complexes that co-exist in solution with single F127 molecules and large aggregates. When the temperature is raised above the CPT, nanoparticles composed of polyoxazolines and F127 are predominant in solution. These nanoparticles could be described by a spherical shell model. It was found that the molar weight and hydrophobicity of the polymer do not influence the size of the outer radius and only slightly change the inner radius of the nanoparticles. At the same time, molar weight and hydrophobicity did affect the process of nanoparticle formation. In conclusion, poly(2-oxazoline) molecules are fully incorporated inside of F127 micelles, and this result is very promising for the successful application of such systems in radionuclide delivery.
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15
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Filippov SK, Franklin JM, Konarev PV, Chytil P, Etrych T, Bogomolova A, Dyakonova M, Papadakis CM, Radulescu A, Ulbrich K, Stepanek P, Svergun DI. Hydrolytically Degradable Polymer Micelles for Drug Delivery: A SAXS/SANS Kinetic Study. Biomacromolecules 2013; 14:4061-70. [DOI: 10.1021/bm401186z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sergey K. Filippov
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - John M. Franklin
- European Molecular
Biology Laboratory, EMBL c/o DESY, Notkestrasse 85, Hamburg, D-22603, Germany
| | - Petr V. Konarev
- European Molecular
Biology Laboratory, EMBL c/o DESY, Notkestrasse 85, Hamburg, D-22603, Germany
| | - Petr Chytil
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - Tomas Etrych
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - Anna Bogomolova
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - Margarita Dyakonova
- Technische Universität München, Physik-Department, Fachgebiet Physik weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany
| | - Christine M. Papadakis
- Technische Universität München, Physik-Department, Fachgebiet Physik weicher Materie, James-Franck-Str. 1, 85748 Garching, Germany
| | - Aurel Radulescu
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science JCNS, Lichtenbergstraße 1, 85748 Garching, Germany
| | - Karel Ulbrich
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - Petr Stepanek
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq.
2, Prague, Prague 6, 162
06, Czech Republic
| | - Dmitri I. Svergun
- European Molecular
Biology Laboratory, EMBL c/o DESY, Notkestrasse 85, Hamburg, D-22603, Germany
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16
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Filippov SK, Chytil P, Konarev PV, Dyakonova M, Papadakis C, Zhigunov A, Plestil J, Stepanek P, Etrych T, Ulbrich K, Svergun DI. Macromolecular HPMA-Based Nanoparticles with Cholesterol for Solid-Tumor Targeting: Detailed Study of the Inner Structure of a Highly Efficient Drug Delivery System. Biomacromolecules 2012; 13:2594-604. [DOI: 10.1021/bm3008555] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sergey K. Filippov
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Petr Chytil
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Petr V. Konarev
- European Molecular
Biology Laboratory, EMBL c/o DESY, Notkestrasse 85, D-22603 Hamburg, Germany
| | - Margarita Dyakonova
- Physik-Department, Technische Universität München, Physik-Department,
Fachgebiet
Physik weicher Materie, James-Franck-Str. 1, 85747 Garching, Germany
| | - ChristineM. Papadakis
- Physik-Department, Technische Universität München, Physik-Department,
Fachgebiet
Physik weicher Materie, James-Franck-Str. 1, 85747 Garching, Germany
| | - Alexander Zhigunov
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Josef Plestil
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Petr Stepanek
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Tomas Etrych
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Karel Ulbrich
- Institute of Macromolecular
Chemistry, Academy of Sciences of the Czech Republic, v. v. i., Heyrovský Sq. 2, 162 06 Prague
6, Czech Republic
| | - Dmitri I. Svergun
- European Molecular
Biology Laboratory, EMBL c/o DESY, Notkestrasse 85, D-22603 Hamburg, Germany
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18
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Synthesis by self-condensing AGET ATRP and solution properties of arborescent poly(sodium 2-acrylamido-2-methyl-N-propane sulfonate). POLYMER 2010. [DOI: 10.1016/j.polymer.2010.09.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Gromadzki D, Jigounov A, Štĕpánek P, Makuška R. Synthesis of thermally responsive cylindrical molecular brushes via a combination of nitroxide-mediated radical polymerization and “grafting onto” strategy. Eur Polym J 2010. [DOI: 10.1016/j.eurpolymj.2009.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gromadzki D, Lokaj J, Šlouf M, Štĕpánek P. Dilute solutions and phase behavior of polydisperse A-b-(A-co-B) diblock copolymers. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.03.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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