501
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Sponchioni M, Ferrari R, Morosi L, Moscatelli D. Influence of the polymer structure over self-assembly and thermo-responsive properties: The case of PEG-b-PCL grafted copolymers via a combination of RAFT and ROP. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28177] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry; Materials and Chemical Engineering “Giulio Natta”; Milano 20131 Italy
| | - Raffaele Ferrari
- Department of Chemistry and Applied Biosciences; Institute for Chemical and Bioengineering; Zurich 8093 Switzerland
| | - Lavinia Morosi
- IRCSS-Istituto di Ricerche Farmacologiche Mario Negri; Milano 20156 Italy
| | - Davide Moscatelli
- Department of Chemistry; Materials and Chemical Engineering “Giulio Natta”; Milano 20131 Italy
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502
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Sedlák M. A novel approach to controlled self-assembly of pH-responsive thermosensitive homopolymer polyelectrolytes into stable nanoparticles. Adv Colloid Interface Sci 2016; 232:57-69. [PMID: 26792020 DOI: 10.1016/j.cis.2015.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/07/2015] [Accepted: 12/08/2015] [Indexed: 12/14/2022]
Abstract
This review addresses the recent research progress in introducing and elaborating a novel approach to controlled polymer self-assembly into stable nanoparticles using pH-responsive thermosensitive homopolymer polyelectrolytes. Interesting aspect of this approach is that stable polymeric nanoparticles are formed from homopolymers of one type only and without any assembly-triggering additives. The process of their formation can be monitored online e.g. by light scattering and particle size can be finely custom tuned. Obtained nanoparticles have interesting properties and are very stable over long periods of time and over a broad range of salt concentrations including physiological conditions. Much effort was devoted not only to finding optimum experimental protocols and to characterizing resulting nanoparticles in detail, but also to understanding physical processes behind these successful protocols.
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503
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Verma R, Adhikary RR, Banerjee R. Smart material platforms for miniaturized devices: implications in disease models and diagnostics. LAB ON A CHIP 2016; 16:1978-1992. [PMID: 27108534 DOI: 10.1039/c6lc00173d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Smart materials are responsive to multiple stimuli like light, temperature, pH and redox reactions with specific changes in state. Various functionalities in miniaturised devices can be achieved through the application of "smart materials" that respond to changes in their surroundings. The change in state of the materials in the presence of a stimulus may be used for on demand alteration of flow patterns in devices, acting as microvalves, as scaffolds for cellular aggregation or as modalities for signal amplification. In this review, we discuss the concepts of smart trigger responsive materials and their applications in miniaturized devices both for organ-on-a-chip disease models and for point-of-care diagnostics. The emphasis is on leveraging the smartness of these materials for example, to allow on demand sample actuation, ion dependent spheroid models for cancer or light dependent contractility of muscle films for organ-on-a-chip applications. The review throws light on the current status, scope for technological enhancements, challenges for translation and future prospects of increased incorporation of smart materials as integral parts of miniaturized devices.
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Affiliation(s)
- Ritika Verma
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, India.
| | - Rishi Rajat Adhikary
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, India.
| | - Rinti Banerjee
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, India.
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504
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Katz E. Modified Electrodes and Electrochemical Systems Switchable by Temperature Changes. ELECTROANAL 2016. [DOI: 10.1002/elan.201600235] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Evgeny Katz
- Department of Chemistry and Biomolecular Science; Clarkson University; Potsdam NY 13699-5810 USA
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505
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Motaali S, Pashaeiasl M, Akbarzadeh A, Davaran S. Synthesis and characterization of smart N-isopropylacrylamide-based magnetic nanocomposites containing doxorubicin anti-cancer drug. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:560-567. [PMID: 27196716 DOI: 10.3109/21691401.2016.1161640] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In the present study, magnetic and thermo/pH-sensitive (multiresponsive) nanocomposites based on N-isopropylacrylamide (NIPAAM) were synthesized and characterized. Nanocomposites were synthesized by free radical emulsion polymerization of NIPAAM as thermosensitive monomer and N,N-dimethyl-aminoethyl methacrylate (DMAEMA) as pH-sensitive monomer in the presence of methylene-bis-acrylamide as cross-linking agent. Doxorubicin, an anti-cancer drug, was loaded into these nanocomposites via equilibrium swelling method. Thermo/pH-sensitive cross-linked poly (NIPAAM-DMAEMA)-Fe3O4 nanocomposites were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM). The volume of the loaded drug and drug release amount was determined by UV measurements. The results showed that this thermo/pH-sensitive magnetic nanocomposite has a high drug-loading efficiency. Doxorubicin was released at 40 °C and pH 5.8 more than the 37 °C and pH 7.4.
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Affiliation(s)
- Soheila Motaali
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz, Iran.,b Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Medical University of Tabriz , Tabriz, Iran
| | - Maryam Pashaeiasl
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz, Iran
| | - Abolfazl Akbarzadeh
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz, Iran.,b Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Medical University of Tabriz , Tabriz, Iran
| | - Soodabeh Davaran
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz, Iran.,b Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Medical University of Tabriz , Tabriz, Iran
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506
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Ghelichi M, Qazvini NT. Self-organization of hydrophobic-capped triblock copolymers with a polyelectrolyte midblock: a coarse-grained molecular dynamics simulation study. SOFT MATTER 2016; 12:4611-4620. [PMID: 27116478 DOI: 10.1039/c6sm00414h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present the results of a Langevin dynamics simulation study of micellar organization and hydrogel formation in the solutions of coarse-grained ABA copolymer chains. Polymer chains are modeled as bead-spring chains of Lennard-Jones particles by explicit treatment of ionic species in implicit solvent. The studied copolymer is composed of a polyelectrolyte midblock flanked by two hydrophobic endblocks. We explore the self-assembly of copolymer solutions at a fixed polymer concentration and temperature upon systematic variation of the midblock charge fraction, valency of neutralizing counterions, and the stiffness and length of hydrophobic endblocks. Minimization of the surface energy, conformational entropy of the midblock chains, electrostatic repulsion of midblock charges, and the translational entropy of counterions are found to play central roles in controlling the self-organization features of copolymer solutions. Flower-like micelles with A-blocks forming the core of spherical aggregates and B-blocks constituting the micelle corona are established for the neutral midblocks. Increasing the charge content of B chains lowers the fraction of loop conformations and yields a spanning hydrogel network with midblocks bridging the hydrophobic clusters. Counterion valence is shown to exert a strong effect on the micelle size and network structure. The increase in the rigidity of terminal A-blocks increases the fraction of bridging chains and results in the formation of a hydrogel network with bundle-like hydrophobic domains. Longer endblocks are shown to increase the hydrophobic cluster size and enhance the bridged midblock fraction. The qualitative agreement between the experimental and theoretical studies is also discussed. The comprehensive molecular picture provides a framework for the future studies of stimuli-responsive copolymer systems.
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Affiliation(s)
- Mahdi Ghelichi
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.
| | - Nader Taheri Qazvini
- Polymer Division, School of Chemistry, College of Science, University of Tehran, P. O. Box 14155-6455, Tehran, Iran and Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA.
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507
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Highley CB, Kim M, Lee D, Burdick JA. Near-infrared light triggered release of molecules from supramolecular hydrogel-nanorod composites. Nanomedicine (Lond) 2016; 11:1579-90. [PMID: 27176049 DOI: 10.2217/nnm-2016-0070] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AIM To develop a stimulus-responsive material platform capable of releasing entrapped molecules in response to near infrared (NIR) light. MATERIALS & METHODS Gold nanorods were mixed with hyaluronic acid derivatives modified with β-cyclodextrin or adamantane to create a NIR-responsive hydrogel-nanorod composite. Microfluidics were used to create responsive microgels and NIR-triggered release was evaluated. RESULTS & DISCUSSION The hydrogel-nanorod composite material exhibited a rapid response to NIR-irradiation, allowing enhanced release of encapsulated payloads with material heating and network disruption. The release was dependent on the entrapped molecule size, the NIR exposure time and the light intensity. CONCLUSION NIR irradiation of hydrogel-nanorods leads to plasmonic heating and triggered release of encapsulated molecules, a system that has potential for light-triggered release of therapeutics.
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Affiliation(s)
- Christopher B Highley
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Miju Kim
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daeyeon Lee
- Department of Chemical & Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
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508
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509
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510
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Ulbrich K, Holá K, Šubr V, Bakandritsos A, Tuček J, Zbořil R. Targeted Drug Delivery with Polymers and Magnetic Nanoparticles: Covalent and Noncovalent Approaches, Release Control, and Clinical Studies. Chem Rev 2016; 116:5338-431. [DOI: 10.1021/acs.chemrev.5b00589] [Citation(s) in RCA: 1120] [Impact Index Per Article: 140.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Karel Ulbrich
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Kateřina Holá
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Vladimir Šubr
- Institute
of Macromolecular Chemistry, The Czech Academy of Sciences, v.v.i., Heyrovsky Square 2, 162 06 Prague 6, Czech Republic
| | - Aristides Bakandritsos
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Jiří Tuček
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, 17 Listopadu 1192/12, 771 46 Olomouc, Czech Republic
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511
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Wang G, Wu P. Unusual Phase Transition Behavior of Poly(N-isopropylacrylamide)-co-Poly(tetrabutylphosphonium styrenesulfonate) in Water: Mild and Linear Changes in the Poly(N-isopropylacrylamide) Part. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3728-3736. [PMID: 27022971 DOI: 10.1021/acs.langmuir.6b00392] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, one LCST-type thermoresponsive poly(ionic liquid) (PIL), poly(tetrabutylphosphonium styrenesulfonate) (P[P4,4,4,4][SS]), was introduced to poly(N-isopropylacrylamide) (PNIPAM) by two different ways, mixing and copolymerization. Interestingly, they show distinct thermoresponsive phase transition behaviors, evidenced by temperature-variable (1)H nuclear magnetic resonance and Fourier transform infrared in combination with the perturbation correlation moving window (PCMW) technique. The PNIPAM/P[P4,4,4,4][SS] mixture exhibits a sharp and drastic phase transition, similar to that of pure PNIPAM. In the statistical copolymer, PNIPAM-co-P[P4,4,4,4][SS], the thermosensitivity of P[P4,4,4,4][SS] is largely suppressed, resulting in a linear, mild, and incomplete phase transition, which has never been reported before. This abnormal phenomenon is shown to arise from the outstanding hydration ability of P[P4,4,4,4][SS]. Our findings should be conducive to improving our understanding of the interaction between LCST-type polymers with distinct structures and provide a new perspective for preparing thermoresponsive materials with linear phase transition behavior.
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Affiliation(s)
- Ge Wang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University , Shanghai 200433, China
| | - Peiyi Wu
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory for Advanced Materials, Fudan University , Shanghai 200433, China
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512
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513
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Wang B, Wu X, Li J, Hao X, Lin J, Cheng D, Lu Y. Thermosensitive Behavior and Antibacterial Activity of Cotton Fabric Modified with a Chitosan-poly(N-isopropylacrylamide) Interpenetrating Polymer Network Hydrogel. Polymers (Basel) 2016; 8:polym8040110. [PMID: 30979204 PMCID: PMC6432009 DOI: 10.3390/polym8040110] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 02/19/2016] [Accepted: 03/23/2016] [Indexed: 12/02/2022] Open
Abstract
To increase the themosensitive behavior and antibacterial activity of cotton fabric, a series of poly (N-isopropylacrylamide)/chitosan (PNIPAAm/Cs) hydrogels was synthesized by interpenetrating polymer network (IPN) technology using a redox initiator. The IPN PNIPAAm/Cs hydrogel was characterized by Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The results indicated that the IPN PNIPAAm/Cs hydrogel has a lower critical solution temperature (LCST) at 33 °C. The IPN hydrogel was then used to modify cotton fabric using glutaric dialdehyde (GA) as a crosslinking agent following a double-dip-double-nip process. The results demonstrated that the modified cotton fabric showed obvious thermosensitive behavior and antibacterial activity. The contact angle of the modified cotton fabric has a sharp rise around 33 °C, and the modified cotton fabric showed an obvious thermosensitive behavior. The bacterial reduction of modified cotton fabric against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were more than 99%. This study presents a valuable route towards smart textiles and their applications in functional clothing.
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Affiliation(s)
- Boxiang Wang
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Xiaolin Wu
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Jia Li
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Xu Hao
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Jie Lin
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Dehong Cheng
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
| | - Yanhua Lu
- Liaoning Provincial Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong 118003, China.
- School of Chemical Engineering, Eastern Liaoning University, Dandong 118003, China.
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514
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Enzenberg A, Laschewsky A, Boeffel C, Wischerhoff E. Influence of the Near Molecular Vicinity on the Temperature Regulated Fluorescence Response of Poly(N-vinylcaprolactam). Polymers (Basel) 2016; 8:E109. [PMID: 30979200 PMCID: PMC6431908 DOI: 10.3390/polym8040109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/04/2016] [Accepted: 03/17/2016] [Indexed: 12/25/2022] Open
Abstract
A series of new fluorescent dye bearing monomers, including glycomonomers, based on maleamide and maleic esteramide was synthesized. The dye monomers were incorporated by radical copolymerization into thermo-responsive poly(N‑vinyl-caprolactam) that displays a lower critical solution temperature (LCST) in aqueous solution. The effects of the local molecular environment on the polymers' luminescence, in particular on the fluorescence intensity and the extent of solvatochromism, were investigated below as well as above the phase transition. By attaching substituents of varying size and polarity in the close vicinity of the fluorophore, and by varying the spacer groups connecting the dyes to the polymer backbone, we explored the underlying structure⁻property relationships, in order to establish rules for successful sensor designs, e.g., for molecular thermometers. Most importantly, spacer groups of sufficient length separating the fluorophore from the polymer backbone proved to be crucial for obtaining pronounced temperature regulated fluorescence responses.
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Affiliation(s)
- Anne Enzenberg
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm D-14476, Germany.
| | - André Laschewsky
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm D-14476, Germany.
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
| | - Christine Boeffel
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
| | - Erik Wischerhoff
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, Potsdam-Golm D-14476, Germany.
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515
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Boţan V, Ustach V, Faller R, Leonhard K. Direct Phase Equilibrium Simulations of NIPAM Oligomers in Water. J Phys Chem B 2016; 120:3434-40. [DOI: 10.1021/acs.jpcb.6b00228] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vitalie Boţan
- Lehrstuhl
für Technische Thermodynamik, RWTH Aachen University, Schinkelstr.
8, 52062 Aachen, Germany
| | - Vincent Ustach
- Department
of Chemical Engineering, University of California Davis, One Shields Ave., Davis, California 95616, United States
| | - Roland Faller
- Department
of Chemical Engineering, University of California Davis, One Shields Ave., Davis, California 95616, United States
| | - Kai Leonhard
- Lehrstuhl
für Technische Thermodynamik, RWTH Aachen University, Schinkelstr.
8, 52062 Aachen, Germany
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516
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Stöhr A, Tabatabai M, Favresse P, Roland K, Ritter H. Iron salen-catalysed oxidative coupling of phenol derivatives: formaldehyde-free access to amphiphilic polymers. POLYM INT 2016. [DOI: 10.1002/pi.5089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Antonia Stöhr
- Institute of Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-University of Düsseldorf; Universitaetsstrasse 1 40225 Düsseldorf Germany
| | - Monir Tabatabai
- Institute of Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-University of Düsseldorf; Universitaetsstrasse 1 40225 Düsseldorf Germany
| | - Philippe Favresse
- Coatings & Additives, Evonik Industries AG; Goldschmidtstraße 100 45127 Essen Germany
| | - Katrin Roland
- Coatings & Additives, Evonik Industries AG; Goldschmidtstraße 100 45127 Essen Germany
| | - Helmut Ritter
- Institute of Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-University of Düsseldorf; Universitaetsstrasse 1 40225 Düsseldorf Germany
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517
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Cross MC, Toomey RG, Gallant ND. Protein-surface interactions on stimuli-responsive polymeric biomaterials. ACTA ACUST UNITED AC 2016; 11:022002. [PMID: 26942693 DOI: 10.1088/1748-6041/11/2/022002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Responsive surfaces: a review of the dependence of protein adsorption on the reversible volume phase transition in stimuli-responsive polymers. Specifically addressed are a widely studied subset: thermoresponsive polymers. Findings are also generalizable to other materials which undergo a similarly reversible volume phase transition. As of 2015, over 100,000 articles have been published on stimuli-responsive polymers and many more on protein-biomaterial interactions. Significantly, fewer than 100 of these have focused specifically on protein interactions with stimuli-responsive polymers. These report a clear trend of increased protein adsorption in the collapsed state compared to the swollen state. This control over protein interactions makes stimuli-responsive polymers highly useful in biomedical applications such as wound repair scaffolds, on-demand drug delivery, and antifouling surfaces. Outstanding questions are whether the protein adsorption is reversible with the volume phase transition and whether there is a time-dependence. A clear understanding of protein interactions with stimuli-responsive polymers will advance theoretical models, experimental results, and biomedical applications.
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Affiliation(s)
- Michael C Cross
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
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518
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Benmouna F, Zemmour S, Benmouna M. Structural Properties and Phase Behavior of Crosslinked Networks in Polymer Solutions. J MACROMOL SCI B 2016; 55:319-329. [PMID: 27134310 PMCID: PMC4841187 DOI: 10.1080/00222348.2016.1146977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 12/25/2015] [Indexed: 10/28/2022]
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519
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Laskar P, Dey J, Ghosh SK. Evaluation of zwitterionic polymersomes spontaneously formed by pH-sensitive and biocompatible PEG based random copolymers as drug delivery systems. Colloids Surf B Biointerfaces 2016; 139:107-16. [DOI: 10.1016/j.colsurfb.2015.11.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 11/20/2015] [Accepted: 11/24/2015] [Indexed: 10/22/2022]
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520
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Gibin G, Lorenzetti A, Callone E, Dirè S, Dolcet P, Venzo A, Causin V, Marigo A, Modesti M, Gross S. Smart and Covalently Cross-Linked: Hybrid Shape Memory Materials Reinforced through Covalent Bonds by Zirconium Oxoclusters. Chempluschem 2016; 81:338-350. [PMID: 31968791 DOI: 10.1002/cplu.201500339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/08/2015] [Indexed: 11/08/2022]
Abstract
The first examples of organic-inorganic hybrid materials reinforced by transition-metal oxoclusters that exhibit shape memory properties, based on the covalent incorporation of zirconium-based inorganic building blocks, are reported. Methacrylate-functionalized zirconium oxoclusters Zr4 O2 (OMc)12 and [Zr6 O4 (OH)4 (OOCCH2 CH3 )3 {OOCC(CH3 )=CH2 }9 ]2 , with the covalent incorporation in a butyl acrylate (BA)/polycaprolactone dimethacrylate (PCLDMA) copolymer and the noncovalent incorporation of [Zr6 O4 (OH)4 (OOCCH2 CH3 )12 ]2 are focused upon herein. Shape recovery and fixity rates are studied to observe if the shape memory properties are preserved upon going from a simple copolymer to noncovalent or covalent-based hybrids. These rates display values higher than 90 %, which provides evidence that the oxocluster does not hinder the shape memory properties in the hybrid materials. The introduction of an inorganic phase and the progressively more stable interactions between organic and inorganic parts lead to an enhancement of the thermomechanical properties. The materials are characterized through FTIR spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and swelling tests. Dynamic-mechanical analyses are used to investigate whether the hybrid materials display thermally activated shape memory properties. The stability of the hybrid materials are evaluated by a combined spectroscopic approach based on FTIR, solid-state NMR, and X-ray absorption spectroscopy.
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Affiliation(s)
- Giacomo Gibin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Alessandra Lorenzetti
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via Marzolo 9, 35131, Padova, Italy
| | - Emanuela Callone
- Dipartimento di Ingegneria Industriale, Università degli Studi di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Sandra Dirè
- Dipartimento di Ingegneria Industriale, Università degli Studi di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Paolo Dolcet
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Alfonso Venzo
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Valerio Causin
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Antonio Marigo
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Michele Modesti
- Dipartimento di Ingegneria Industriale, Università degli Studi di Padova, via Marzolo 9, 35131, Padova, Italy
| | - Silvia Gross
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy.,Istituto per l'Energetica e le Interfasi, IENI-CNR and INSTM, UdR di Padova, via Marzolo 1, 35131, Padova, Italy
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521
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Samanta S, Bogdanowicz DR, Lu HH, Koberstein JT. Polyacetals: Water-Soluble, pH-Degradable Polymers with Extraordinary Temperature Response. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02304] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sanjoy Samanta
- Department
of Chemical Engineering and ‡Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Danielle R. Bogdanowicz
- Department
of Chemical Engineering and ‡Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Helen H. Lu
- Department
of Chemical Engineering and ‡Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
| | - Jeffrey T. Koberstein
- Department
of Chemical Engineering and ‡Department of Biomedical Engineering, Columbia University, New York, New York 10027, United States
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522
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Liow SS, Dou Q, Kai D, Karim AA, Zhang K, Xu F, Loh XJ. Thermogels: In Situ Gelling Biomaterial. ACS Biomater Sci Eng 2016; 2:295-316. [DOI: 10.1021/acsbiomaterials.5b00515] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sing Shy Liow
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Qingqing Dou
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Anis Abdul Karim
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Kangyi Zhang
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | | | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
- Department
of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
- Singapore Eye Research Institute, 11 Third Hospital Avenue, Singapore 168751, Singapore
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523
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Roy SG, Kumar A, De P. Amino acid containing cross-linked co-polymer gels: pH, thermo and salt responsiveness. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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524
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Jafari M, Kaffashi B. Synthesis and characterization of a novel solvent-free dextran-HEMA-PNIPAM thermosensitive nanogel. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1120173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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525
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Zhang C, Peng H, Li W, Liu L, Puttick S, Reid J, Bernardi S, Searles DJ, Zhang A, Whittaker AK. Conformation Transitions of Thermoresponsive Dendronized Polymers across the Lower Critical Solution Temperature. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02414] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cheng Zhang
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Hui Peng
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Wen Li
- Department
of Polymer Materials, Shanghai University, Shangda Street 99, Mailbox 152, Shanghai 200444, China
| | - Lianxiao Liu
- Department
of Polymer Materials, Shanghai University, Shangda Street 99, Mailbox 152, Shanghai 200444, China
| | - Simon Puttick
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
| | | | | | | | - Afang Zhang
- Department
of Polymer Materials, Shanghai University, Shangda Street 99, Mailbox 152, Shanghai 200444, China
| | - Andrew K. Whittaker
- ARC
Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Qld 4072, Australia
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526
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Kyriakos K, Philipp M, Lin CH, Dyakonova M, Vishnevetskaya N, Grillo I, Zaccone A, Miasnikova A, Laschewsky A, Müller-Buschbaum P, Papadakis CM. Quantifying the Interactions in the Aggregation of Thermoresponsive Polymers: The Effect of Cononsolvency. Macromol Rapid Commun 2016; 37:420-5. [DOI: 10.1002/marc.201500583] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 10/26/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Konstantinos Kyriakos
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Martine Philipp
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Che-Hung Lin
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Margarita Dyakonova
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Natalya Vishnevetskaya
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Isabelle Grillo
- Large Scale Structures Group; Institut Laue-Langevin; 71, Avenue des Martyrs 38042 Grenoble France
| | - Alessio Zaccone
- Theorie weicher Materie; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Anna Miasnikova
- Institut für Chemie; Universität Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Germany
| | - André Laschewsky
- Institut für Chemie; Universität Potsdam; Karl-Liebknecht-Str. 24-25 14476 Potsdam-Golm Germany
- Fraunhofer IAP; PO Box 600 651 14406 Potsdam Germany
| | - Peter Müller-Buschbaum
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
| | - Christine M. Papadakis
- Fachgebiet Physik weicher Materie/Lehrstuhl für Funktionelle Materialien; Physik-Department; Technische Universität München; James-Franck-Str. 1 85748 Garching Germany
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527
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Agrawal V, Sinha M. A review on carrier systems for bone morphogenetic protein-2. J Biomed Mater Res B Appl Biomater 2016; 105:904-925. [PMID: 26728994 DOI: 10.1002/jbm.b.33599] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 01/26/2023]
Abstract
Bone morphogenetic protein-2 (BMP-2) has unique bone regeneration property. The powerful osteoinductive nature makes it considered as second line of therapy in nonunion bone defect. A large number of carriers and delivery systems made up of different materials have been investigated for controlled and sustained release of BMP-2. The delivery systems are in the form of hydrogel, microsphere, nanoparticles, and fibers. The carriers used for the delivery are made up of metals, ceramics, polymers, and composites. Implantation of these protein-loaded carrier leads to cell adhesion, degradation which eventually releases the drug/protein at site specific. But, problems like ectopic growth, lesser protein delivery, inactivation of the protein are reported in the available carrier systems. Therefore, it is need of an hour to modify the available carrier systems as well as explore other biomaterials with desired properties. In this review, all the reported carrier systems made of metals, ceramics, polymers, composites are evaluated in terms of their processing conditions, loading capacity and release pattern of BMP-2. Along with these biomaterials, the attempts of protein modification by adding some functional group to BMP-2 or extracting functional peptides from the protein to achieve the desired effect, is also evaluated. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 904-925, 2017.
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Affiliation(s)
- Vishal Agrawal
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
| | - Mukty Sinha
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
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528
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Boerman MA, Van der Laan HL, Bender JCME, Hoogenboom R, Jansen JA, Leeuwenburgh SC, Van Hest JCM. Synthesis of pH- and thermoresponsive poly(2-n
-propyl-2-oxazoline) based copolymers. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28011] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marcel A. Boerman
- Radboud University Nijmegen, Institute for Molecules and Materials (IMM); Heyendaalseweg 135, 6525 AJ Nijmegen The Netherlands
- Radboudumc; Department of Biomaterials; 6500 HB Nijmegen The Netherlands
- Bender Analytical Holding B.V; Parksesteeg 8, 6611 KH Overasselt The Netherlands
| | - Harry L. Van der Laan
- Radboud University Nijmegen, Institute for Molecules and Materials (IMM); Heyendaalseweg 135, 6525 AJ Nijmegen The Netherlands
| | | | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University; Krijgslaan 281 S4, 9000 Ghent Belgium
| | - John A. Jansen
- Radboudumc; Department of Biomaterials; 6500 HB Nijmegen The Netherlands
| | | | - Jan C. M. Van Hest
- Radboud University Nijmegen, Institute for Molecules and Materials (IMM); Heyendaalseweg 135, 6525 AJ Nijmegen The Netherlands
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529
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Core Cross-linked Star Polymers for Temperature/pH Controlled Delivery of 5-Fluorouracil. J CHEM-NY 2016. [DOI: 10.1155/2016/4543191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
RAFT polymerization with cross-linking was used to prepare core cross-linked star polymers bearing temperature sensitive arms. The arms consisted of a diblock copolymer containingN-isopropylacrylamide (NIPAAm) and 4-methacryloyloxy benzoic acid (4MBA) in the temperature sensitive block and poly(hexyl acrylate) forming the second hydrophobic block, while ethyleneglycol dimethacrylate was used to form the core. The acid comonomer provides pH sensitivity to the arms and also increases the transition temperature of polyNIPAAm to values in the range of 40 to 46°C. Light scattering and atomic force microscopy studies suggest that loose core star polymers were obtained. The star polymers were loaded with 5-fluorouracil (5-FU), an anticancer agent, in values of up to 30 w/w%.In vitrorelease experiments were performed at different temperatures and pH values, as well as with heating and cooling temperature cycles. Faster drug release was obtained at 42°C or pH 6, compared to normal physiological conditions (37°C, pH 7.4). The drug carriers prepared acted as nanopumps changing the release kinetics of 5-FU when temperatures cycles were applied, in contrast with release rates at a constant temperature. The prepared core cross-linked star polymers represent advanced drug delivery vehicles optimized for 5-FU with potential application in cancer treatment.
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530
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Gan J, Guan X, Zheng J, Guo H, Wu K, Liang L, Lu M. Biodegradable, thermoresponsive PNIPAM-based hydrogel scaffolds for the sustained release of levofloxacin. RSC Adv 2016. [DOI: 10.1039/c6ra03045a] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The cumulative release of LVF-loaded TBHs exhibited a thermo-induced slow sustained drug release and a reduction-induced fast release.
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Affiliation(s)
- Jianqun Gan
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - XiaoXiao Guan
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - Jian Zheng
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - Huilong Guo
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - Kun Wu
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - Liyan Liang
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
| | - Mangeng Lu
- Key Laboratory of Cellulose and Lignocellulosics Chemistry
- Chinese Academy of Sciences
- Guangzhou 510650
- China
- Key Laboratory of Polymer Materials for Electronics
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531
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V. NSKV, H. G. S, Fathima SJ, Radha V, Khanum F. pH and thermosensitive 5-fluorouracil loaded poly(NIPAM-co-AAc) nanogels for cancer therapy. RSC Adv 2016. [DOI: 10.1039/c6ra18034e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to develop 5-FU loaded pH and thermo-sensitive nanogels that could specifically respond to tumour endosomal pH and extracellular pH, while being dormant to physiological pH at physiological temperature.
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Affiliation(s)
| | - Shivakumar H. G.
- Department of Pharmaceutics
- JSS College of Pharmacy
- JSS University
- Mysuru
- India
| | - Syeda Juveriya Fathima
- Biochemistry and Nanosciences Discipline
- Defence Food Research Laboratory
- Defence Research and Development Organisation (DRDO)
- Mysuru
- India
| | - Vegesna Radha
- Centre for Cellular and Molecular Biology
- Council of Scientific and Industrial Research (CSIR)
- Hyderabad
- India
| | - Farhath Khanum
- Biochemistry and Nanosciences Discipline
- Defence Food Research Laboratory
- Defence Research and Development Organisation (DRDO)
- Mysuru
- India
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532
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Rother M, Nussbaumer MG, Renggli K, Bruns N. Protein cages and synthetic polymers: a fruitful symbiosis for drug delivery applications, bionanotechnology and materials science. Chem Soc Rev 2016; 45:6213-6249. [DOI: 10.1039/c6cs00177g] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Protein cages have become essential tools in bionanotechnology due to their well-defined, monodisperse, capsule-like structure. Combining them with synthetic polymers greatly expands their application, giving rise to novel nanomaterials fore.g.drug-delivery, sensing, electronic devices and for uses as nanoreactors.
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Affiliation(s)
- Martin Rother
- Department of Chemistry
- University of Basel
- CH-4056 Basel
- Switzerland
| | - Martin G. Nussbaumer
- Wyss Institute for Biologically Inspired Engineering
- Harvard University
- Cambridge
- USA
| | - Kasper Renggli
- Department of Biosystems Science and Engineering
- ETH Zürich
- 4058 Basel
- Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
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533
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Truong NP, Whittaker MR, Anastasaki A, Haddleton DM, Quinn JF, Davis TP. Facile production of nanoaggregates with tuneable morphologies from thermoresponsive P(DEGMA-co-HPMA). Polym Chem 2016. [DOI: 10.1039/c5py01467k] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
RAFT-mediated emulsion polymerization of styrene and subsequent morphological transition produces nanoaggregates with tuneable morphologies.
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Affiliation(s)
- Nghia P. Truong
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
| | - Michael R. Whittaker
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
| | - Athina Anastasaki
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
| | - David M. Haddleton
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
| | - John F. Quinn
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology
- Monash Institute of Pharmaceutical Sciences
- Monash University
- Melbourne
- Australia
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534
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Zhang G, Wang Y, Liu G. Poly(3-imidazolyl-2-hydroxypropyl methacrylate) – a new polymer with a tunable upper critical solution temperature in water. Polym Chem 2016. [DOI: 10.1039/c6py01535b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel imidazole-bearing polymer is synthesized and its solubility in water increases as the solution temperature rises or pH increases.
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Affiliation(s)
- Ganwei Zhang
- Department of Chemistry
- Queen's University
- Kingston
- Canada K7L 3N6
| | - Yu Wang
- Department of Chemistry
- Queen's University
- Kingston
- Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry
- Queen's University
- Kingston
- Canada K7L 3N6
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535
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Constantinou AP, Georgiou TK. Thermoresponsive gels based on ABC triblock copolymers: effect of the length of the PEG side group. Polym Chem 2016. [DOI: 10.1039/c5py02072g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ABC triblock copolymers of varying compositions and lengths of the PEG side groups were fabricated and their thermoresponsive behaviour was thoroughly investigated.
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Affiliation(s)
- A. P. Constantinou
- Department of Materials
- Imperial College London
- Royal School of Mines
- London
- UK
| | - T. K. Georgiou
- Department of Materials
- Imperial College London
- Royal School of Mines
- London
- UK
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536
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Wu CJ, Xie R, Wei HB, Xu TT, Liu Z, Wang W, Ju XJ, Chu LY. Fabrication of a thermo-responsive membrane with cross-linked smart gates via a ‘grafting-to’ method. RSC Adv 2016. [DOI: 10.1039/c6ra05192h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel thermo-responsive membrane with the cross-linked microspheres as smart gates is fabricated by the “grafting to” technique, which exhibits excellent thermo-responsive characteristics with satisfactory reversibility and stability.
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Affiliation(s)
- Cheng-Jing Wu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Rui Xie
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Hong-Bo Wei
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Ting-Ting Xu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Zhuang Liu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Wei Wang
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Xiao-Jie Ju
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
- State Key Laboratory of Polymer Materials Engineering
| | - Liang-Yin Chu
- School of Chemical Engineering
- Sichuan University
- Chengdu
- China
- State Key Laboratory of Polymer Materials Engineering
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537
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Maiti B, Maiti S, De P. Self-assembly of well-defined fatty acid based amphiphilic thermoresponsive random copolymers. RSC Adv 2016. [DOI: 10.1039/c6ra00336b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Side-chain stearic acid containing thermoresponsive and crystalline random copolymers are synthesized via RAFT technique, which self-assembled to spherical micellar structures in aqueous solution depending on stearate content in the copolymer.
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Affiliation(s)
- Binoy Maiti
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246
- India
| | - Sankar Maiti
- Department of Biological Sciences
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246
- India
| | - Priyadarsi De
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata
- Mohanpur – 741246
- India
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538
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Swanson JP, Martinez MR, Cruz MA, Mankoci SG, Costanzo PJ, Joy A. A coacervate-forming biodegradable polyester with elevated LCST based on bis-(2-methoxyethyl)amine. Polym Chem 2016. [DOI: 10.1039/c6py00814c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This work details a thermoresponsive, biodegradable coacervate-forming polyester, which exhibits tunable Tcp under various conditions.
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Affiliation(s)
- J. P. Swanson
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - M. R. Martinez
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - M. A. Cruz
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - S. G. Mankoci
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - P. J. Costanzo
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - A. Joy
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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539
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Suzuki S, Sawada T, Ishizone T, Serizawa T. Affinity-based thermoresponsive precipitation of proteins modified with polymer-binding peptides. Chem Commun (Camb) 2016; 52:5670-3. [DOI: 10.1039/c6cc00594b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A model protein (i.e., human serum albumin) chemically modified with a 12-mer peptide with an affinity for the meso diad sequence of poly(N-isopropylacrylamide) (PNIPAM) was successfully precipitated with PNIPAM above the lower critical solution temperature of PNIPAM.
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Affiliation(s)
- Seigo Suzuki
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Toshiki Sawada
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Takashi Ishizone
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Takeshi Serizawa
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
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540
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Schulz B, Chudoba R, Heyda J, Dzubiella J. Tuning the critical solution temperature of polymers by copolymerization. J Chem Phys 2015; 143:243119. [DOI: 10.1063/1.4934017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Bernhard Schulz
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, 14109 Berlin, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Richard Chudoba
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, 14109 Berlin, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Jan Heyda
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, 166 28 Praha 6, Czech Republic
| | - Joachim Dzubiella
- Institut für Weiche Materie und Funktionale Materialien, Helmholtz-Zentrum Berlin, 14109 Berlin, Germany
- Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
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541
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Wang J, Liu B, Ru G, Bai J, Feng J. Effect of Urea on Phase Transition of Poly(N-isopropylacrylamide) and Poly(N,N-diethylacrylamide) Hydrogels: A Clue for Urea-Induced Denaturation. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01949] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jian Wang
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Wuhan Institute of
Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Biaolan Liu
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Wuhan Institute of
Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Geying Ru
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Wuhan Institute of
Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
| | - Jia Bai
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Wuhan Institute of
Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jiwen Feng
- State
Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,
National Center for Magnetic Resonance in Wuhan, Wuhan Institute of
Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China
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542
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Kasmi S, Louage B, Nuhn L, Van Driessche A, Van Deun J, Karalic I, Risseeuw M, Van Calenbergh S, Hoogenboom R, De Rycke R, De Wever O, Hennink WE, De Geest BG. Transiently Responsive Block Copolymer Micelles Based on N-(2-Hydroxypropyl)methacrylamide Engineered with Hydrolyzable Ethylcarbonate Side Chains. Biomacromolecules 2015; 17:119-27. [PMID: 26650350 DOI: 10.1021/acs.biomac.5b01252] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The lack of selectivity and low solubility of many chemotherapeutics impels the development of different biocompatible nanosized drug carriers. Amphiphilic block copolymers, composed of a hydrophilic and hydrophobic domain, show great potential because of their small size, large solubilizing power and loading capacity. In this paper, we introduce a new class of degradable temperature-responsive block copolymers based on the modification of N-(2-hydroxypropyl)methacrylamide (HPMA) with an ethyl group via a hydrolytically sensitive carbonate ester, polymerized by radical polymerization using a PEG-based macroinitiatior. The micellization and temperature-responsive behavior of the PEG-poly(HPMA-EC) block copolymer were investigated by dynamic light scattering (DLS). We observed that the polymer exhibits lower critical solution temperature (LCST) behavior and that above the cloud point (cp) of 17 °C the block copolymer self-assembles in micelles with a diameter of 40 nm. Flow cytometry analysis and confocal microscopy show a dose-dependent cellular uptake of the micelles loaded with a hydrophobic dye. The block copolymer nanoparticles were capable of delivering the hydrophobic payload into cancer cells in both 2D and 3D in vitro cultures. The block copolymer has excellent cytocompatibility, whereas loading the particles with the hydrophobic anticancer drug paclitaxel results in a dose-dependent decrease in cell viability.
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Affiliation(s)
- Sabah Kasmi
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
| | - Benoit Louage
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
| | - Lutz Nuhn
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
| | | | - Jan Van Deun
- Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital , 9000 Ghent, Belgium
| | - Izet Karalic
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
| | - Martijn Risseeuw
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
| | | | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University , 9000 Ghent, Belgium
| | - Riet De Rycke
- VIB inflammation Research Center , Zwijnaarde, 9052 Ghent, Belgium
| | - Olivier De Wever
- Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital , 9000 Ghent, Belgium
| | - Wim E Hennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University , 3512 JE Utrecht, The Netherlands
| | - Bruno G De Geest
- Department of Pharmaceutics, Ghent University , 9000 Ghent, Belgium
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543
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Trotta F, Caldera F, Dianzani C, Argenziano M, Barrera G, Cavalli R. Glutathione Bioresponsive Cyclodextrin Nanosponges. Chempluschem 2015; 81:439-443. [DOI: 10.1002/cplu.201500531] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Francesco Trotta
- Dipartimento di Chimica; University of Torino; Via Pietro Giuria 7 10125 Torino Italy
| | - Fabrizio Caldera
- Dipartimento di Chimica; University of Torino; Via Pietro Giuria 7 10125 Torino Italy
| | - Chiara Dianzani
- Dipartimento di Scienza e Tecnologia del Farmaco; University of Torino; Via Verdi, 8 10124 Torino Italy
| | - Monica Argenziano
- Dipartimento di Chimica; University of Torino; Via Pietro Giuria 7 10125 Torino Italy
| | - Giuseppina Barrera
- Dipartimento di Scienze Cliniche e Biologiche; University of Torino; C.so Raffaello, 30 10125 Torino Italy
| | - Roberta Cavalli
- Dipartimento di Scienza e Tecnologia del Farmaco; University of Torino; Via Verdi, 8 10124 Torino Italy
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544
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Antoniraj MG, Kumar CS, Kandasamy R. Synthesis and characterization of poly (N-isopropylacrylamide)-g-carboxymethyl chitosan copolymer-based doxorubicin-loaded polymeric nanoparticles for thermoresponsive drug release. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3804-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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545
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Dabbagh A, Mahmoodian R, Abdullah BJJ, Abdullah H, Hamdi M, Abu Kasim NH. Low-melting-point polymeric nanoshells for thermal-triggered drug release under hyperthermia condition. Int J Hyperthermia 2015; 31:920-9. [DOI: 10.3109/02656736.2015.1094147] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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546
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Zhao F, Yao D, Guo R, Deng L, Dong A, Zhang J. Composites of Polymer Hydrogels and Nanoparticulate Systems for Biomedical and Pharmaceutical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:2054-2130. [PMID: 28347111 PMCID: PMC5304774 DOI: 10.3390/nano5042054] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Due to their unique structures and properties, three-dimensional hydrogels and nanostructured particles have been widely studied and shown a very high potential for medical, therapeutic and diagnostic applications. However, hydrogels and nanoparticulate systems have respective disadvantages that limit their widespread applications. Recently, the incorporation of nanostructured fillers into hydrogels has been developed as an innovative means for the creation of novel materials with diverse functionality in order to meet new challenges. In this review, the fundamentals of hydrogels and nanoparticles (NPs) were briefly discussed, and then we comprehensively summarized recent advances in the design, synthesis, functionalization and application of nanocomposite hydrogels with enhanced mechanical, biological and physicochemical properties. Moreover, the current challenges and future opportunities for the use of these promising materials in the biomedical sector, especially the nanocomposite hydrogels produced from hydrogels and polymeric NPs, are discussed.
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Affiliation(s)
- Fuli Zhao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Dan Yao
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ruiwei Guo
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Liandong Deng
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Anjie Dong
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Jianhua Zhang
- Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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547
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de Oliveira TE, Netz PA, Mukherji D, Kremer K. Why does high pressure destroy co-non-solvency of PNIPAm in aqueous methanol? SOFT MATTER 2015; 11:8599-8604. [PMID: 26381828 DOI: 10.1039/c5sm01772f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
It is well known that poly(N-isopropylacrylamide) (PNIPAm) exhibits an interesting, yet puzzling, phenomenon of co-non-solvency. Co-non-solvency occurs when two competing good solvents for PNIPAm, such as water and alcohol, are mixed together. As a result, the same PNIPAm collapses within intermediate mixing ratios. This complex conformational transition is driven by preferential binding of methanol with PNIPAm. Interestingly, co-non-solvency can be destroyed when applying high hydrostatic pressures. In this work, using a large scale molecular dynamics simulation employing high pressures, we propose a microscopic picture behind the suppression of the co-non-solvency phenomenon. Based on thermodynamic and structural analysis, our results suggest that the preferential binding of methanol with PNIPAm gets partially lost at high pressures, making the background fluid reasonably homogeneous for the polymer. This is consistent with the hypothesis that the co-non-solvency phenomenon is driven by preferential binding and is not based on depletion effects.
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Affiliation(s)
- Tiago E de Oliveira
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany. and Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Paulo A Netz
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany. and Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Debashish Mukherji
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany.
| | - Kurt Kremer
- Max-Planck Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz, Germany.
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548
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Moghaddam SZ, Thormann E. Hofmeister effect on thermo-responsive poly(propylene oxide): Role of polymer molecular weight and concentration. J Colloid Interface Sci 2015; 465:67-75. [PMID: 26641567 DOI: 10.1016/j.jcis.2015.11.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/17/2015] [Accepted: 11/18/2015] [Indexed: 10/22/2022]
Abstract
Although a vast amount of research has been dedicated to investigate the Hofmeister effect on the stability of polymer solutions, a clear understanding of the role of polymer properties in this phenomenon is still missing. Here, the Hofmeister effect of NaCl (destabilizing) and NaSCN (stabilizing) salts on aqueous solutions of poly(propylene oxide) (PPO) is studied. Four different molecular weights of PPO were investigated, to determine how the variation in the polymer coil size affects the Hofmeister effect. The investigation was further conducted for different PPO concentrations, in order to understand the effect of inter-chain interactions on the response to addition of salt. The temperature-driven phase separation of the solutions was monitored by differential scanning calorimetry, which provides the precise value of the phase separation temperature, as well as the enthalpy change accompanied with the transition. It was observed that increasing the molecular weight weakens the effect of the both salts, which is interpreted in terms of a scaling law between the molecular weight and the accessible surface area of the polymers. Increasing the PPO concentration further diminished the NaCl effect, but amplified the NaSCN effect. This difference is attributed to an electrostatic stabilization mechanism in the case of NaSCN.
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Affiliation(s)
| | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
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549
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Zhu M, Xu Y, Ge C, Ling Y, Tang H. Synthesis and UCST-type phase behavior of OEGylated poly(γ-benzyl-l-glutamate) in organic media. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27982] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mengxiang Zhu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry; Xiangtan University; Xiangtan Hunan 411105 China
| | - Yanzhi Xu
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry; Xiangtan University; Xiangtan Hunan 411105 China
| | - Chenglong Ge
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry; Xiangtan University; Xiangtan Hunan 411105 China
| | - Ying Ling
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry; Xiangtan University; Xiangtan Hunan 411105 China
| | - Haoyu Tang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymer Materials of Colleges and Universities of Hunan Province, College of Chemistry; Xiangtan University; Xiangtan Hunan 411105 China
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550
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Kamata H, Li X, Chung UI, Sakai T. Design of Hydrogels for Biomedical Applications. Adv Healthc Mater 2015; 4:2360-74. [PMID: 25939809 DOI: 10.1002/adhm.201500076] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/20/2015] [Indexed: 12/31/2022]
Abstract
Hydrogels are considered key tools for the design of biomaterials, such as wound dressings, drug reservoirs, and temporary scaffolds for cells. Despite their potential, conventional hydrogels have limited applicability under wet physiological conditions because they suffer from the uncontrollable temporal change in shape: swelling takes place immediately after the installation. Swollen hydrogels easily fail under mechanical stress. The morphological change may cause not only the slippage from the installation site but also local nerve compression. The design of hydrogels that can retain their original shape and mechanical properties in an aqueous environment is, therefore, of great importance. On the one hand, the controlled degradation of used hydrogels has to be realized in some biomedical applications. This Progress Report provides a brief overview of the recent progress in the development of hydrogels for biomedical applications. Practical approaches to control the swelling properties of hydrogels are discussed. The designs of hydrogels with controlled degradation properties as well as the theoretical models to predict the degradation behavior are also introduced. Moreover, current challenges and limitation toward biomedical applications are discussed, and future directions are offered.
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Affiliation(s)
- Hiroyuki Kamata
- Department of Bioengineering; School of Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Xiang Li
- Department of Bioengineering; School of Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Ung-il Chung
- Department of Bioengineering; School of Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Center for Disease Biology and Integrative Medicine; School of Medicine; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takamasa Sakai
- Department of Bioengineering; School of Engineering; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
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