51
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Han G, Ju Y, Zhao H. Synthesis of amphiphilic block-type macromolecular brushes with cleavable pendant chains and fabrication of micelle-templated polymer nanocapsules. Polym Chem 2016. [DOI: 10.1039/c5py01940k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Macromolecular brushes with cleavable pendant chains were synthesized by controlled free radical polymerizations and functional nanocapsules were fabricated on the basis of the brush polymers.
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Affiliation(s)
- Guangda Han
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
| | - Yuanyuan Ju
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
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52
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Lu Y, Yan N, Wang Y, Liu Y. A novel hyperbranched polyphosphoramidate-poly(trimethylene carbonate) amphiphilic copolymer: synthesis, characterization and influence of its architecture on self-assembly. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1589-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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53
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Gaitzsch J, Karu K, Battaglia G. Peptoidosomes as nanoparticles from amphiphilic block alpha-peptoids using solid-phase-synthesis. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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54
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55
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Gaitzsch J, Huang X, Voit B. Engineering Functional Polymer Capsules toward Smart Nanoreactors. Chem Rev 2015; 116:1053-93. [DOI: 10.1021/acs.chemrev.5b00241] [Citation(s) in RCA: 300] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jens Gaitzsch
- Department
of Chemistry, University College London, London WC1H 0AJ, United Kingdom
- Department
of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Basel-Stadt, Switzerland
| | - Xin Huang
- School
of Chemical Engineering and Technology, Harbin Institute of Technology, 150001 Harbin, Heilongjiang, China
| | - Brigitte Voit
- Leibniz-Institut fuer Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Saxony, Germany
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56
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Wang W, Song H, Zhang J, Li P, Li C, Wang C, Kong D, Zhao Q. An injectable, thermosensitive and multicompartment hydrogel for simultaneous encapsulation and independent release of a drug cocktail as an effective combination therapy platform. J Control Release 2015; 203:57-66. [DOI: 10.1016/j.jconrel.2015.02.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/28/2015] [Accepted: 02/11/2015] [Indexed: 10/24/2022]
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57
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Zhao Y, Lv LP, Jiang S, Landfester K, Crespy D. Advanced stimuli-responsive polymer nanocapsules with enhanced capabilities for payloads delivery. Polym Chem 2015. [DOI: 10.1039/c5py00323g] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent progress in the design, preparation, and application of stimuli-responsive polymer nanocapsules with enhanced capabilities for payloads delivery are reviewed.
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Affiliation(s)
- Yi Zhao
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Li-Ping Lv
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Shuai Jiang
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | | | - Daniel Crespy
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
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58
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Angelova A, Angelov B, Mutafchieva R, Lesieur S. Biocompatible Mesoporous and Soft Nanoarchitectures. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0143-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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59
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Biswas A, Nagaraja AT, McShane MJ. Fabrication of nanocapsule carriers from multilayer-coated vaterite calcium carbonate nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2014; 6:21193-21201. [PMID: 25372304 DOI: 10.1021/am5061195] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanosized luminescent sensors were prepared as reagents for optical sensing and imaging of oxygen using ratiometric emission properties of a two-dye system. Polymeric capsules were fabricated utilizing poly(vinylsulfonic acid) (PVSA)-stabilized vaterite CaCO3 nanoparticles (CCNPs) as sacrificial templates. The buffer and polymeric surfactant requirements of the layer-by-layer (LbL) process were evaluated toward deposition of multilayer coatings and, ultimately, formation of hollow capsules using these interesting materials. CCNPs were found to be more stable in alkaline NaHCO3 buffer after repeated cycles of washing under sonication and resuspension. An intermediate PVSA concentration was required to maximize the loading of oxygen-sensitive porphyrin and oxygen-insensitive fluorescent nanoparticles in the CCNPs while maintaining minimal nanoparticle size. The CCNPs were then coated with polyelectrolyte multilayers and subsequent removal of the CaCO3 core yielded nanocapsules containing dye and fluorescent nanoparticles. The resulting nanocapsules with encapsulated luminophores functioned effectively as oxygen sensors with a quenching response of 89.28 ± 2.59%, and O2 (S = 1/2) = 20.91 μM of dissolved oxygen.
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Affiliation(s)
- Aniket Biswas
- Department of Biomedical Engineering and ‡Department of Materials Science and Engineering, Texas A&M University , College Station, Texas 77843, United States
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60
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Li M, Huang X, Tang TYD, Mann S. Synthetic cellularity based on non-lipid micro-compartments and protocell models. Curr Opin Chem Biol 2014; 22:1-11. [DOI: 10.1016/j.cbpa.2014.05.018] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 05/19/2014] [Accepted: 05/19/2014] [Indexed: 11/17/2022]
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61
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Doganci E, Gorur M, Uyanik C, Yilmaz F. Supramolecular inclusion complexes of a star polymer containing cholesterol end-capped poly(ε-caprolactone) arms with β-cyclodextrin. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27408] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Erdinc Doganci
- Department of Chemistry; Gebze Institute of Technology; 41400 Gebze Kocaeli Turkey
- Department of Science Education; Kocaeli University; 41380 Kocaeli Turkey
| | - Mesut Gorur
- Department of Chemistry; Istanbul Medeniyet University; 34720 Istanbul Turkey
| | - Cavit Uyanik
- Department of Chemistry; Kocaeli University; 41380 Kocaeli Turkey
| | - Faruk Yilmaz
- Department of Chemistry; Gebze Institute of Technology; 41400 Gebze Kocaeli Turkey
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62
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Gräfe D, Gaitzsch J, Appelhans D, Voit B. Cross-linked polymersomes as nanoreactors for controlled and stabilized single and cascade enzymatic reactions. NANOSCALE 2014; 6:10752-61. [PMID: 25099948 DOI: 10.1039/c4nr02155j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Polymeric vesicles or polymersomes are one of the supramolecular entities at the leading edge of synthetic biology. These small compartments have shown to be feasible candidates as nanoreactors, especially for enzymatic reactions. Once cross-linked and equipped with a pH sensitive material, the reaction can be switched off (pH 8) and on (pH 6) in accordance with the increased permeability of the polymersome membranes under acidic conditions. Thus cross-linked and pH sensitive polymersomes provide a basis for pH controlled enzymatic reactions where no integrated transmembrane protein is needed for regulating the uptake and release of educts and products in the polymersome lumen. This pH-tunable working tool was further used to investigate their use in sequential enzymatic reactions (glucose oxidase and myoglobin) where enzymes are loaded in one common polymersome or in two different polymersomes. Crossing membranes and overcoming the space distance between polymersomes were shown successfully, meaning that educts and products can be exchanged between enzyme compartments for successful enzymatic cascade reactions. Moreover the stabilizing effect of polymersomes is also observable by single enzymatic reactions as well as a sequence. This study is directed to establish robust and controllable polymersome nanoreactors for enzymatic reactions, describing a switch between an off (pH 8) and on (pH 6) state of polymersome membrane permeability with no transmembrane protein needed for transmembrane exchange.
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Affiliation(s)
- David Gräfe
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
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63
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Isaacman MJ, Cui W, Theogarajan LS. Rapid Metal -free Macromolecular Coupling via in situ Nitrile Oxide-Activated Alkene Cycloaddition. ACTA ACUST UNITED AC 2014; 52:3134-3141. [PMID: 26811566 DOI: 10.1002/pola.27371] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nitrile oxide 1,3 dipolar cycloaddition is a simple and powerful coupling methodology. However, the self-dimerization of nitrile oxides has prevented the widespread use of this strategy for macromolecular coupling. By combining an in situ nitrile oxide generation with a highly reactive activated dipolarophile, we have overcome these obstacles and present a metal-free macromolecular coupling strategy for the modular synthesis of several ABA triblock copolymers. Nitrile oxides were generated in situ from chloroxime terminated poly(dimethylsiloxane) B-blocks and coupled with several distinct hydrophilic (poly(2-methyloxazoline) and poly(ethylene glycol)), and poly(N-isopropylacrylamide) or hydrophobic (poly(L-lactide) A-blocks terminated in activated dipolarophiles in a rapid fashion with high yield. This methodology overcomes many drawbacks of previously reported metal-free methods due to its rapid kinetics, versatility, scalability, and ease of introduction of necessary functionality. Nitrile oxide cycloaddition should find use as an attractive macromolecular coupling strategy for the synthesis of biocompatible polymeric nanostructures.
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Affiliation(s)
- Michael J Isaacman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106; California Nanosystems Institute at UC Santa Barbara, University of California, Santa Barbara, California, 93106
| | - Weibin Cui
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106; California Nanosystems Institute at UC Santa Barbara, University of California, Santa Barbara, California, 93106
| | - Luke S Theogarajan
- California Nanosystems Institute at UC Santa Barbara, University of California, Santa Barbara, California, 93106; Department of Electrical and Computer Engineering, University of California, Santa Barbara, California, 93106
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64
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Staff RH, Gallei M, Landfester K, Crespy D. Hydrophobic Nanocontainers for Stimulus-Selective Release in Aqueous Environments. Macromolecules 2014. [DOI: 10.1021/ma501233y] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Roland H. Staff
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Markus Gallei
- Ernst-Berl-Institute
for Chemical Engineering and Macromolecular Science, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
| | - Daniel Crespy
- Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
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65
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del Mercato LL, Ferraro MM, Baldassarre F, Mancarella S, Greco V, Rinaldi R, Leporatti S. Biological applications of LbL multilayer capsules: from drug delivery to sensing. Adv Colloid Interface Sci 2014; 207:139-54. [PMID: 24625331 DOI: 10.1016/j.cis.2014.02.014] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/15/2014] [Accepted: 02/15/2014] [Indexed: 11/24/2022]
Abstract
Polyelectrolyte multilayer (PEM) capsules engineered with active elements for targeting, labeling, sensing and delivery hold great promise for the controlled delivery of drugs and the development of new sensing platforms. PEM capsules composed of biodegradable polyelectrolytes are fabricated for intracellular delivery of encapsulated cargo (for example peptides, enzymes, DNA, and drugs) through gradual biodegradation of the shell components. PEM capsules with shells responsive to environmental or physical stimuli are exploited to control drug release. In the presence of appropriate triggers (e.g., pH variation or light irradiation) the pores of the multilayer shell are unlocked, leading to the controlled release of encapsulated cargos. By loading sensing elements in the capsules interior, PEM capsules sensitive to biological analytes, such as ions and metabolites, are assembled and used to detect analyte concentration changes in the surrounding environment. This Review aims to evaluate the current state of PEM capsules for drug delivery and sensing applications.
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66
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Wang W, Zhang MJ, Chu LY. Functional polymeric microparticles engineered from controllable microfluidic emulsions. Acc Chem Res 2014; 47:373-84. [PMID: 24199893 DOI: 10.1021/ar4001263] [Citation(s) in RCA: 197] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Functional polymeric microparticles with typical sizes of 1-1000 μm have received considerable attention for many applications. Especially in biomedical fields, polymeric microparticles with advanced functions such as targeted delivery, controlled encapsulation, or "capture and release" show great importance as delivery systems for active molecules and drugs, as imaging agents for analytics and diagnostics, as microreactors for confined bioreactions, and more. Generally, the functions of these microparticles rely on both their structures and the properties of their component materials. Thus, creating unique structures from functional materials provides an important strategy for developing advanced functional polymeric microparticles. Several methods, such as dispersion polymerization, precipitation polymerization, copolymer self-assembly, and phase-separated polymer precipitation can be used to make functional microparticles, but each has limitations, for example, their limited control over the particle size and structure. Using emulsions as templates, however, allows precise control over the size, shape, composition, and structure of the resulting microparticles by tuning those of the emulsions via specific emulsification techniques. Microfluidic methods offer excellent control of emulsion droplets, thereby providing a powerful platform for continuous, reproducible, scalable production of polymeric microparticles with unprecedented control over their monodispersity, structures, and compositions. This approach provides broad opportunities for producing polymeric microparticles with novel structure-property combinations and elaborately designed functions. In this Account, we highlight recent efforts in microfluidic fabrication of advanced polymeric microparticles with well-designed functions for potential biomedical applications, and we describe the development of microfluidic techniques for producing monodisperse and versatile emulsion templates. We begin by describing microparticles made from single emulsions and then describe those from complex multiple emulsions, showing how the resulting microparticles combine novel structures and material properties to achieve their advanced functions. Monodisperse emulsions enable production of highly uniform microparticles of desired sizes to achieve programmed release rates and passive targeting for drug delivery and diagnostic imaging. Phase-separated multiple emulsions allow combination of a variety of functional materials to generate compartmental microparticles including hollow, core-shell, multicore-shell, and hole-shell structures for controlled encapsulation and release, selective capture, and confined bioreaction. We envision that the versatility of microfluidics for microparticle synthesis could open new frontiers and provide promising and exciting opportunities for fabricating new functional microparticles with broad implications for myriad fields.
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Affiliation(s)
- Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Mao-Jie Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering and Collaborative Innovation Center for Biomaterials Science and Technology, Sichuan University, Chengdu 610065, China
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67
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Lv LP, Zhao Y, Zhou HX, Landfester K, Crespy D. From core–shell and Janus structures to tricompartment submicron particles. POLYMER 2014. [DOI: 10.1016/j.polymer.2013.12.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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68
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Gaitzsch J, Appelhans D, Janke A, Strempel M, Schwille P, Voit B. Cross-linked and pH sensitive supported polymer bilayers from polymersomes - studies concerning thickness, rigidity and fluidity. SOFT MATTER 2014; 10:75-82. [PMID: 24651668 DOI: 10.1039/c3sm52016a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Polymersomes are at the leading edge of biomedical and nanoparticle research. In order to get closer insights into their mechanical properties, the bilayer forming them needs to be studied thoroughly. Here, we report on the bilayer formation, swelling behaviour, rigidity and fluidity of our membranes derived from pH sensitive and photo-cross-linkable polymersomes.
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Affiliation(s)
- Jens Gaitzsch
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
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69
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Hedaoo RK, Gite VV. Renewable resource-based polymeric microencapsulation of natural pesticide and its release study: an alternative green approach. RSC Adv 2014. [DOI: 10.1039/c4ra01558d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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70
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Miao K, Shao W, Liu H, Zhao Y. Synthesis and properties of a dually cleavable graft copolymer comprising pendant acetal linkages. Polym Chem 2014. [DOI: 10.1039/c3py01049j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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71
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Yoshida K, Hasebe Y, Takahashi S, Sato K, Anzai JI. Layer-by-layer deposited nano- and micro-assemblies for insulin delivery: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 34:384-92. [DOI: 10.1016/j.msec.2013.09.045] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 09/28/2013] [Indexed: 12/29/2022]
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72
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Wang W, Zhang J, Li C, Huang P, Gao S, Han S, Dong A, Kong D. Facile access to cytocompatible multicompartment micelles with adjustable Janus-cores from A-block-B-graft-C terpolymers prepared by combination of ROP and ATRP. Colloids Surf B Biointerfaces 2013; 115:302-9. [PMID: 24389334 DOI: 10.1016/j.colsurfb.2013.12.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 12/08/2013] [Accepted: 12/10/2013] [Indexed: 11/28/2022]
Abstract
The architecture of hydrophobic segments can determine the specific morphology of multicompartment micelles (MCMs) that are generated from aqueous assembly of amphiphilic terpolymers. In this study, we aimed to design and generate poly(ɛ-caprolactone)-based multicompartment micelles with adjustable Janus-cores. Well-defined terpolymers with a novel A-block-B-graft-C architecture composed of biologically compatible polymers, methoxy poly(ethylene glycol) (PEG), poly(ɛ-caprolactone) (PCL) and poly(2-(perfluorobutyl)ethyl methacrylate) (PPFEMA), were prepared by the stepwise use of ring-opening polymerization and atom transfer radical polymerization. Characterization of the obtained terpolymers was carried out by (1)H NMR and gel permeation chromatography. Results from differential scanning calorimetry and X-ray diffraction studies indicated that within the terpolymer structure, the PCL segments are in the crystalline state, while fluorocarbon segments belong to the amorphous domains. Due to the thermodynamic incompatibility of PCL and PPFEMA, MCMs could be obtained upon aqueous self-assembly of the terpolymer. The well-segregated Janus-cores with adjustable compartment balance were revealed by transmission electron microscopy. In vitro cell viability assays further demonstrated an excellent cytocompatibility of the MCMs both in mouse embryonic fibroblasts (3T3) and human acute monocytic leukemia (THP-1) cells.
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Affiliation(s)
- Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Ju Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Pingsheng Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shan Gao
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Shangcong Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Anjie Dong
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science, Tianjin 300192, China.
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73
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Interfacial assembly of protein–polymer nano-conjugates into stimulus-responsive biomimetic protocells. Nat Commun 2013; 4:2239. [DOI: 10.1038/ncomms3239] [Citation(s) in RCA: 340] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 07/03/2013] [Indexed: 12/22/2022] Open
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74
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Kohri M, Kohma H, Shinoda Y, Yamauchi M, Yagai S, Kojima T, Taniguchi T, Kishikawa K. A colorless functional polydopamine thin layer as a basis for polymer capsules. Polym Chem 2013. [DOI: 10.1039/c3py00181d] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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75
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Yang Y, Ning Y, Wang C, Tong Z. Capsule clusters fabricated by polymerization based on capsule-in-water-in-oil Pickering emulsions. Polym Chem 2013. [DOI: 10.1039/c3py00620d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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76
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Shao W, Miao K, Liu H, Ye C, Du J, Zhao Y. Acid and reduction dually cleavable amphiphilic comb-like copolymer micelles for controlled drug delivery. Polym Chem 2013. [DOI: 10.1039/c3py00252g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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77
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Huang X, Appelhans D, Formanek P, Simon F, Voit B. Tailored synthesis of intelligent polymer nanocapsules: an investigation of controlled permeability and pH-dependent degradability. ACS NANO 2012; 6:9718-9726. [PMID: 23102500 DOI: 10.1021/nn3031723] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we present a new route to synthesize an intelligent polymer nanocapsule with an ultrathin membrane based on surface-initiated reversible addition-fragmentation chain-transfer polymerization. The key concept of our report is to use pH-responsive polydiethylaminoethylmethacrylate as a main membrane-generating component and a degradable disulfide bond to cross-link the membrane. The permeability of membrane, tuned by adjusting pH and using different lengths of the cross-linkers, was proven by showing a dramatic swelling behavior of the nanocapsules with the longest cross-linker from 560 nm at pH 8.0 to 780 nm at pH 4.0. Also, due to the disulfide cross-linker, degradation of the capsules using GSH as reducing agent was achieved which is further significantly promoted at pH 4.0. Using a rather long-chain dithiol cross-linker, the synthesized nanocapsules demonstrated a good permeability allowing that an enzyme myoglobin can be postencapsulated, where the pH controlled enzyme activity by switching membrane permeability was also shown.
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Affiliation(s)
- Xin Huang
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany.
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