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Nanogels Capable of Triggered Release. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 178:99-146. [PMID: 33665715 DOI: 10.1007/10_2021_163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This chapter provides an overview of soft and environmentally sensitive polymeric nanosystems, which are widely known as nanogels. These particles keep great promise to the area of drug delivery due to their high biocompatibility with body fluids and tissues, as well as due to their ability to encapsulate and release the loaded drugs in a controlled manner. For a long period of time, the controlled drug delivery systems were designed to provide long-termed or sustained release. However, some medical treatments such as cancer chemotherapy, protein and gene delivery do not require the prolonged release of the drug in the site of action. In contrast, the rapid increase of the drug concentration is needed for gaining the desired biological effect. Being very sensitive to surrounding media and different stimuli, nanogels can undergo physico-chemical transitions or chemical changes in their structure. Such changes can result in more rapid release of the drugs, which is usually referred to as triggered drug release. Herein we give the basic information on nanogel unique features, methods of sensitive nanogels preparation, as well as on main mechanisms of triggered release. Additionally, the triggered release of low-molecular drugs and biomacromolecules are discussed.
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Pilipenko IM, Korzhikov-Vlakh VA, Zakharova NV, Urtti A, Tennikova TB. Thermo- and pH-sensitive glycosaminoglycans derivatives obtained by controlled grafting of poly(N-isopropylacrylamide). Carbohydr Polym 2020; 248:116764. [PMID: 32919560 DOI: 10.1016/j.carbpol.2020.116764] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 01/03/2023]
Abstract
Poly(N-isopropyl acrylamide) grafted heparin and chondroitin sulfate were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The copolymers were characterized by NMR, IR, SEC, DLS, SLS and NTA methods. High grafting densities were reached for both glycosaminoglycans. The temperature, pH and polymer concentration affected the low critical solution temperatures values. The increased pNIPAAm chain length, grafting density and concentration led to the sharp phase transition at 35 °C. Spherical nanogels were formed around this temperature. Terminal dodecyl trithiocarbonate groups of the copolymers were reduced to thiols that allowed formation of sensitive nanogels with sharp phase transitions induced by pNIPAAm chains. The copolymers showed no toxicity to the ocular cells and they provided the prolonged release of dexamethasone phosphate at 37 °C. These copolymers are interesting alternatives for ocular drug delivery.
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Affiliation(s)
- I M Pilipenko
- St. Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - V A Korzhikov-Vlakh
- St. Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - N V Zakharova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004, St. Petersburg, Russia
| | - A Urtti
- St. Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, 198504, St. Petersburg, Russia
| | - T B Tennikova
- St. Petersburg State University, Institute of Chemistry, Universitetskii pr. 26, 198504, St. Petersburg, Russia.
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Wang C, You J, Gao M, Zhang P, Xu G, Dou H. Bio-inspired gene carriers with low cytotoxicity constructed via the assembly of dextran nanogels and nano-coacervates. Nanomedicine (Lond) 2020; 15:1285-1296. [PMID: 32468909 DOI: 10.2217/nnm-2020-0065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: To achieve safe and biocompatible gene carriers. Materials & methods: A core/shell-structured hierarchical carrier with an internal peptide/gene coacervate 'core' and a dextran nanogel 'shell' on the surface has been designed. Results: The dextran nanogels shield coacervate (DNSC) can effectively condense genes and release them in reducing environments. The dextran nanogel-based 'shell' can effectively shield the positive charge of the peptide/gene coacervate 'core', thus reducing the side effects of cationic gene carriers. In contrast with the common nonviral gene carriers that had high cytotoxicities, the DNSC showed a high transfection efficiency while maintaining a low cytotoxicity. Conclusion: The DNSC provides an effective environmentally responsive gene carrier with potential applications in the fields of gene therapy and gene carrier development.
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Affiliation(s)
- Chenglong Wang
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Jiayi You
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Miaomiao Gao
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Peipei Zhang
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, 201508, PR China
| | - Hongjing Dou
- The State Key Laboratory of Metal Matrix Composites, School of Materials Science & Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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Ghorbani M, Hamishehkar H. Redox-responsive smart nanogels for intracellular targeting of therapeutic agents: applications and recent advances. J Drug Target 2018; 27:408-422. [DOI: 10.1080/1061186x.2018.1514041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Marjan Ghorbani
- Stem Cell Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
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Gao Y, Dong CM. Reduction- and thermo-sensitive core-cross-linked polypeptide hybrid micelles for triggered and intracellular drug release. Polym Chem 2017. [DOI: 10.1039/c6py01929c] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
To address the dynamic instability, premature burst drug release, and lack of intracellular stimuli-sensitivity of current polymeric nanocarriers, a novel type of reduction- and thermo-sensitive core-cross-linked polypeptide hybrid micelle was developed.
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Affiliation(s)
- Yuanfeng Gao
- Department of Polymer Science & Engineering
- School of Chemistry & Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Chang-Ming Dong
- Department of Polymer Science & Engineering
- School of Chemistry & Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
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Abreu CM, Paula HC, Seabra V, Feitosa JP, Sarmento B, de Paula RC. Synthesis and characterization of non-toxic and thermo-sensitive poly( N -isopropylacrylamide)-grafted cashew gum nanoparticles as a potential epirubicin delivery matrix. Carbohydr Polym 2016; 154:77-85. [DOI: 10.1016/j.carbpol.2016.08.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/09/2016] [Accepted: 08/09/2016] [Indexed: 12/24/2022]
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Chen Y, van Steenbergen MJ, Li D, van de Dikkenberg JB, Lammers T, van Nostrum CF, Metselaar JM, Hennink WE. Polymeric Nanogels with Tailorable Degradation Behavior. Macromol Biosci 2016; 16:1122-37. [DOI: 10.1002/mabi.201600031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 02/22/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Yinan Chen
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
| | - Mies J. van Steenbergen
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
| | - Dandan Li
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
| | - Joep B. van de Dikkenberg
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
| | - Twan Lammers
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
- Department of Targeted Therapeutics; MIRA Institute for Biomedical Engineering and Technical Medicine; University of Twente; 7522 NB Enschede The Netherlands
- Department of Nanomedicine and Theranostics; Institute for Experimental Molecular Imaging; RWTH Aachen University Clinic; 52074 Aachen Germany
| | - Cornelus F. van Nostrum
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
| | - Josbert M. Metselaar
- Department of Targeted Therapeutics; MIRA Institute for Biomedical Engineering and Technical Medicine; University of Twente; 7522 NB Enschede The Netherlands
- Department of Nanomedicine and Theranostics; Institute for Experimental Molecular Imaging; RWTH Aachen University Clinic; 52074 Aachen Germany
| | - Wim E. Hennink
- Department of Pharmaceutics; Utrecht Institute for Pharmaceutical Sciences; Utrecht University; 3584 CG Utrecht The Netherlands
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Preparation of Well-Defined Propargyl-Terminated Tetra-Arm Poly(N-isopropylacrylamide)s and Their Click Hydrogels Crosslinked with β-cyclodextrin. Polymers (Basel) 2016; 8:polym8040093. [PMID: 30979203 PMCID: PMC6432514 DOI: 10.3390/polym8040093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 02/28/2016] [Accepted: 03/14/2016] [Indexed: 01/05/2023] Open
Abstract
As an important class of reversible deactivation radical polymerization (RDRP), reversible addition fragmentation chain transfer (RAFT) polymerization has attracted great attention attributed to its facile and flexible features to prepare well-defined polymers with different complex structures. In addition, the combination of RAFT with click chemistry provides more effective strategies to fabricate advanced functional materials. In this work, a series of temperature responsive tetra-arm telechelic poly(N-isopropylacrylamide)s (PNIPAs) with propargyl end groups were prepared for the first time through RAFT and subsequent aminolysis/Michael addition modification. The temperature sensitivities of their aqueous solutions were researched via turbidity measurement. It was found that the phase transition temperature of obtained PNIPAs increased with their molecular weights ascribed to their distinctions in the hydrophobic/hydrophilic balance. Subsequently, β-cyclodextrin (β-CD) functionalized with azide moieties was used to crosslink the prepared propargyl-terminated tetra-arm PNIPAs through click chemistry, fabricating corresponding hydrogels with thermoresponse. Similar to their precursors, the hydrogels demonstrated the same dependence of volume phase transition temperature (VPTT) on their molecular weights. In addition, the incorporation of β-CD and the residual groups besides crosslinking may provide a platform for imparting additional functions such as inclusion and adsorption as well as further functionalization.
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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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11
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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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Li Y, Maciel D, Rodrigues J, Shi X, Tomás H. Biodegradable Polymer Nanogels for Drug/Nucleic Acid Delivery. Chem Rev 2015; 115:8564-608. [PMID: 26259712 DOI: 10.1021/cr500131f] [Citation(s) in RCA: 324] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yulin Li
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- The State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology , Shanghai 200237, People's Republic of China
| | - Dina Maciel
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - João Rodrigues
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, People's Republic of China
| | - Helena Tomás
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
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13
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Redox-responsive cellulose-based thermoresponsive grafted copolymers and in-situ disulfide crosslinked nanogels. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.01.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Ma K, Xu Y, An Z. Templateless synthesis of polyacrylamide-based Nanogels via RAFT dispersion polymerization. Macromol Rapid Commun 2015; 36:566-70. [PMID: 25684634 DOI: 10.1002/marc.201400730] [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: 12/19/2014] [Revised: 01/22/2015] [Indexed: 11/08/2022]
Abstract
This paper reports on the synthesis of well-defined polyacrylamide-based nanogels via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization, highlighting a templateless route for the efficient synthesis of nanogels based on water-soluble polymers. RAFT dispersion polymerization of acrylamide in co-nonsolvents of water-tert-butanol mixtures by chain extension from poly(dimethylacrylamide) shows well-controlled polymerization process, uniform nanogel size, and excellent colloidal stability. The versatility of this approach is further demonstrated by introducing a hydrophobic co-monomer (butyl acrylate) without disturbing the dispersion polymerization process.
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Affiliation(s)
- Kai Ma
- Institute of Nanochemistry and Nanobiology, College of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China; Department of Chemistry, Shanghai University, Shanghai, 200444, China
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Cheng X, Jin Y, Sun T, Qi R, Fan B, Li H. Oxidation- and thermo-responsive poly(N-isopropylacrylamide-co-2-hydroxyethyl acrylate) hydrogels cross-linked via diselenides for controlled drug delivery. RSC Adv 2015. [DOI: 10.1039/c4ra13500h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel diselenide crosslinked poly(NIPAM-co-HEA) hydrogel was successfully synthesized, which exhibits a dual-stimuli-responsive drug release behaviors,i.e., thermo-induced slow sustained release and oxidation-induced quick burst release.
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Affiliation(s)
- Xinfeng Cheng
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Science
- Center of Polymer Science and Technology
- Chengdu 610041
- People's Republic of China
| | - Yong Jin
- National Engineering Laboratory for Clean Technology of Leather Manufacture
- Sichuan University
- Chengdu 610065
- People's Republic of China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University)
| | - Tongbing Sun
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Science
- Center of Polymer Science and Technology
- Chengdu 610041
- People's Republic of China
| | - Rui Qi
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Science
- Center of Polymer Science and Technology
- Chengdu 610041
- People's Republic of China
| | - Baozhu Fan
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Science
- Center of Polymer Science and Technology
- Chengdu 610041
- People's Republic of China
| | - Hanping Li
- National Engineering Laboratory for Clean Technology of Leather Manufacture
- Sichuan University
- Chengdu 610065
- People's Republic of China
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University)
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Liu Y, Liang CL, Bao RY, Qi GQ, Yang W, Xie BH, Yang MB. Temperature: a nonnegligible factor for the formation of a structurally stable, self-assembled reduced graphite oxide hydrogel. RSC Adv 2015. [DOI: 10.1039/c4ra13309a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The stability of rGO hydrogels prepared at different temperatures was investigated. The network of rGO hydrogel formed at 40 °C showed the best structural stability, the lowest electrical resistance and highest mechanical strength.
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Affiliation(s)
- Yang Liu
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Cheng-Lu Liang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Rui-Ying Bao
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Guo-Qiang Qi
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Wei Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Bang-Hu Xie
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
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Fernandes Stefanello T, Szarpak-Jankowska A, Appaix F, Louage B, Hamard L, De Geest BG, van der Sanden B, Nakamura CV, Auzély-Velty R. Thermoresponsive hyaluronic acid nanogels as hydrophobic drug carrier to macrophages. Acta Biomater 2014; 10:4750-4758. [PMID: 25110287 DOI: 10.1016/j.actbio.2014.07.033] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 07/07/2014] [Accepted: 07/31/2014] [Indexed: 10/24/2022]
Abstract
Delivery systems for macrophages are particularly attractive since these phagocytic cells play a important role in immunological and inflammatory responses, also acting as host cells for microorganisms that are involved in deadly infectious diseases, such as leishmaniasis. Hyaluronic acid (HA) is specifically recognized by macrophages that are known to express HA receptors. Therefore, in this study, we focused on HA-based nanogels as drug carriers for these cells. The drug delivery was validated in an in vivo study on mice using intravital two-photon laser scanning microscopy. HA derivatives were modified with a biocompatible oligo(ethylene glycol)-based thermoresponsive polymer to form nanogels. These HA conjugates were readily prepared by varying the molar mass of initial HA and the degree of substitution via radical-mediated thiol-ene chemistry in aqueous solution. The derivatives were shown to self-assemble into spherical gel particles with diameters ranging from 150 to 214 nm above 37 °C. A poorly water-soluble two-photon dye was successfully loaded into the nanogels during this self-assembly process. In vitro cellular uptake tests using a RAW 264.7 murine macrophage cell line showed successful intracellular delivery of the hydrophobic dye. After intravenous injection in mice, the nanogels circulated freely in the blood but were rapidly phagocytized within 13 min by circulating macrophages and stored in the liver and spleen, as observed by two-photon microscopy. Benefit can be thus expected in using such a delivery system for the liver and spleen macrophage-associated diseases.
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Wen Y, Oh JK. Recent Strategies to Develop Polysaccharide-Based Nanomaterials for Biomedical Applications. Macromol Rapid Commun 2014; 35:1819-32. [DOI: 10.1002/marc.201400406] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 08/18/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Yifen Wen
- Department of Chemistry and Biochemistry; Concordia University; Montreal Quebec Canada
| | - Jung Kwon Oh
- Department of Chemistry and Biochemistry; Concordia University; Montreal Quebec Canada
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Wen Y, Oh JK. Dual-stimuli reduction and acidic pH-responsive bionanogels: intracellular delivery nanocarriers with enhanced release. RSC Adv 2014. [DOI: 10.1039/c3ra46072j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Aleksanian S, Wen Y, Chan N, Oh JK. Thiol-responsive hydrogel scaffolds for rapid change in thermoresponsiveness. RSC Adv 2014. [DOI: 10.1039/c3ra43841d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Li F, Pei D, Huang Q, Shi T, Zhang G. Synthesis and properties of novel biomimetic and thermo-responsive dextran-based biohybrids. Carbohydr Polym 2014; 99:728-35. [DOI: 10.1016/j.carbpol.2013.09.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 08/22/2013] [Accepted: 09/04/2013] [Indexed: 01/02/2023]
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22
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Air-Spun PLA Nanofibers Modified with Reductively Sheddable Hydrophilic Surfaces for Vascular Tissue Engineering: Synthesis and Surface Modification. Macromol Rapid Commun 2013; 35:447-53. [DOI: 10.1002/marc.201300609] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Revised: 08/29/2013] [Indexed: 01/10/2023]
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Affiliation(s)
- Smriti Singh
- DWI an der RWTH Aachen e.V. Functional and Interactive Polymers and Institute for Technical and Macromolecular Chemistry, RWTH Aachen University; 52056 Aachen Germany
| | - Martin Möller
- DWI an der RWTH Aachen e.V. Functional and Interactive Polymers and Institute for Technical and Macromolecular Chemistry, RWTH Aachen University; 52056 Aachen Germany
| | - Andrij Pich
- DWI an der RWTH Aachen e.V. Functional and Interactive Polymers and Institute for Technical and Macromolecular Chemistry, RWTH Aachen University; 52056 Aachen Germany
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Dual and multi-stimuli responsive polymeric nanoparticles for programmed site-specific drug delivery. Biomaterials 2013; 34:3647-57. [DOI: 10.1016/j.biomaterials.2013.01.084] [Citation(s) in RCA: 999] [Impact Index Per Article: 90.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 01/28/2013] [Indexed: 01/19/2023]
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25
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Cunningham A, Oh JK. New Design of Thiol-Responsive Degradable Polylactide-Based Block Copolymer Micelles. Macromol Rapid Commun 2012; 34:163-8. [DOI: 10.1002/marc.201200532] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/04/2012] [Indexed: 01/05/2023]
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Lv W, Qi J, Feng W, Zhang G, Zhang F, Fan X. Functionalization of carbon and gold nanomaterials using PNIPAAm grafted dextran: a general route towards robust and smart nanomaterials. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30753g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Zhang Q, Re Ko N, Kwon Oh J. Modulated morphologies and tunable thiol-responsive shedding of aqueous block copolymer aggregates. RSC Adv 2012. [DOI: 10.1039/c2ra21209a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Feng W, Lv W, Qi J, Zhang G, Zhang F, Fan X. Quadruple-responsive nanocomposite based on dextran-PMAA-PNIPAM, iron oxide nanoparticles, and gold nanorods. Macromol Rapid Commun 2011; 33:133-9. [PMID: 22102518 DOI: 10.1002/marc.201100595] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 10/11/2011] [Indexed: 11/11/2022]
Abstract
A quadruple-responsive nanocomposite that responds to temperature, pH, magnetic field, and NIR is obtained by incorporating superparamagnetic iron oxide nanoparticles (SPIONs) and gold nanorods (AuNRs) into a dextran-based smart copolymer network. The dual-sensitive copolymer is prepared by sequential RAFT polymerization of methacrylic acid and N-isopropylacrylamide from trithiocarbonate groups linked to dextran in one pot. These functionalized nanocomposites with superior stability can respond to the four stimuli mentioned above well. As evidenced by UV-vis and TEM measurements, the temperature-induced unusual blue-shift in the longitudinal plasmon band is possibly due to the side-to-side assembly of AuNRs.
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Affiliation(s)
- Wenqian Feng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P R China
| | - Weipeng Lv
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Junjie Qi
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Guoliang Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
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An Z, Qiu Q, Liu G. Synthesis of architecturally well-defined nanogels via RAFT polymerization for potential bioapplications. Chem Commun (Camb) 2011; 47:12424-40. [DOI: 10.1039/c1cc13955j] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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