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Yu C, Cui K, Guo H, Ye YN, Li X, Gong JP. Structure Frustration Enables Thermal History-Dependent Responsive Behavior in Self-Healing Hydrogels. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01461] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chengtao Yu
- Graduate School of Life Science, Hokkaido University, Sapporo 001-0021, Japan
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Kunpeng Cui
- Institute for Chemical Reaction Design and Discovery (ICReDD), Hokkaido University, Sapporo 001-0021, Japan
| | - Honglei Guo
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Ya Nan Ye
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 001-0021, Japan
| | - Xueyu Li
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 001-0021, Japan
| | - Jian Ping Gong
- Institute for Chemical Reaction Design and Discovery (ICReDD), Hokkaido University, Sapporo 001-0021, Japan
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 001-0021, Japan
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 001-0021, Japan
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2
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Rana MM, De la Hoz Siegler H. Tuning the Properties of PNIPAm-Based Hydrogel Scaffolds for Cartilage Tissue Engineering. Polymers (Basel) 2021; 13:3154. [PMID: 34578055 PMCID: PMC8467289 DOI: 10.3390/polym13183154] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/15/2023] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAm) is a three-dimensional (3D) crosslinked polymer that can interact with human cells and play an important role in the development of tissue morphogenesis in both in vitro and in vivo conditions. PNIPAm-based scaffolds possess many desirable structural and physical properties required for tissue regeneration, but insufficient mechanical strength, biocompatibility, and biomimicry for tissue development remain obstacles for their application in tissue engineering. The structural integrity and physical properties of the hydrogels depend on the crosslinks formed between polymer chains during synthesis. A variety of design variables including crosslinker content, the combination of natural and synthetic polymers, and solvent type have been explored over the past decade to develop PNIPAm-based scaffolds with optimized properties suitable for tissue engineering applications. These design parameters have been implemented to provide hydrogel scaffolds with dynamic and spatially patterned cues that mimic the biological environment and guide the required cellular functions for cartilage tissue regeneration. The current advances on tuning the properties of PNIPAm-based scaffolds were searched for on Google Scholar, PubMed, and Web of Science. This review provides a comprehensive overview of the scaffolding properties of PNIPAm-based hydrogels and the effects of synthesis-solvent and crosslinking density on tuning these properties. Finally, the challenges and perspectives of considering these two design variables for developing PNIPAm-based scaffolds are outlined.
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Affiliation(s)
- Md Mohosin Rana
- Biomedical Engineering Graduate Program, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada;
| | - Hector De la Hoz Siegler
- Biomedical Engineering Graduate Program, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada;
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
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3
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Hou Y, Fang G, Jiang Y, Song H, Zhang Y, Zhao Q. Emulsion Lyophilization as a Facile Pathway to Fabricate Stretchable Polymer Foams Enabling Multishape Memory Effect and Clip Application. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32423-32430. [PMID: 31409064 DOI: 10.1021/acsami.9b11424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Solvent freezing is an important method to produce polymer foams with highly tunable pore structure. However, foams prepared from aqueous solution precursors commonly suffer from poor water resistance, whereas those organo-phase systems are not environmental friendly. Here, we present that using an emulsion lyophilization method can overcome such a contradiction and synthesize multifunctional polymer foams. Commercially available polyacrylate-based emulsions with various targeted glass transition temperatures (Tgs) were applied. Adipodihydrazide molecules contained in the water phase of the emulsions reacted with the acetyl groups on the polymers during the freeze-drying, forming elastic networks to maintain the pore structure. The foams can tolerate a 650% elongation without failure and are notch insensitive. The porosity of the foams can be tuned from approximately 45 to 90% via lyophilization of diluted emulsions. The facile blending of emulsions with different targeted Tgs enabled foams with multishape memory capability. Moreover, the foams showed an excellent mechanical damping property, and the slow recovery nature enabled a clip application of clamping extremely weak objects.
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Affiliation(s)
- Yukun Hou
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Guangqiang Fang
- Institute of Aerospace System Engineering Shanghai , Shanghai 201109 , China
- Space Structure and Mechanism Technology Laboratory of China Aerospace Science and Technology Group Co.Ltd , Shanghai 201109 , China
| | - Yongbo Jiang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Huijie Song
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Yuhua Zhang
- Zhejiang Provincial People's Hospital , Hangzhou 310014 , China
- People's Hospital of Hangzhou Medical College , Hangzhou 310014 , China
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , Hangzhou 310027 , China
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4
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Zong L, Li X, Han X, Lv L, Li M, You J, Wu X, Li C. Activation of Actuating Hydrogels with WS 2 Nanosheets for Biomimetic Cellular Structures and Steerable Prompt Deformation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32280-32289. [PMID: 28828853 DOI: 10.1021/acsami.7b10348] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Macroscopic soft actuation is intrinsic to living organisms in nature, including slow deformation (e.g., contraction, bending, twisting, and curling) of plants motivated by microscopic swelling and shrinking of cells, and rapid motion of animals (e.g., deformation of jellyfish) motivated by cooperative nanoscale movement of motor proteins. These actuation behaviors, with an exceptional combination of tunable speed and programmable deformation direction, inspire us to design artificial soft actuators for broad applications in artificial muscles, nanofabrication, chemical valves, microlenses, soft robotics, etc. However, so far artificial soft actuators have been typically produced on the basis of poly(N-isopropylacrylamide) (PNiPAM), whose deformation is motived by volumetric shrinkage and swelling in analogue to plant cells, and exhibits sluggish actuation kinetics. In this study, alginate-exfoliated WS2 nanosheets were incorporated into ice-template-polymerized PNiPAM hydrogels with the cellular microstructures which mimic plant cells, yet the prompt steerable actuation of animals. Because of the nanosheet-reinforced pore walls formed in situ in freezing polymerization and reasonable hierarchical water channels, this cellular hybrid hydrogel achieves super deformation speed (on the order of magnitude of 10° s), controllable deformation direction, and high near-infrared light responsiveness, offering an unprecedented platform of artificial muscles for various soft robotics and devices (e.g., rotator, microvalve, aquatic swimmer, and water-lifting filter).
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Affiliation(s)
- Lu Zong
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
| | - Xiankai Li
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
| | - Xiangsheng Han
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
| | - Lili Lv
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
| | - Mingjie Li
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
| | - Jun You
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
| | - Xiaochen Wu
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
| | - Chaoxu Li
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Songling Road 189, Qingdao 266101, P. R. China
- University of Chinese Academy of Sciences , 19A Yuquan Road, Beijing 100049, P. R. China
- Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province (Qingdao University) , 308 Ningxia Road, Qingdao 266071, P. R. China
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5
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Wei YY, Liu Z, Ju XJ, Shi K, Xie R, Wang W, Cheng Z, Chu LY. Gamma-Cyclodextrin-Recognition-Responsive Characteristics of Poly(N-isopropylacrylamide)-Based Hydrogels with Benzo-12-crown-4 Units as Signal Receptors. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yun-Yan Wei
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Zhuang Liu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Xiao-Jie Ju
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Kun Shi
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Rui Xie
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Wei Wang
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
| | - Zhengdong Cheng
- Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter; Guangdong University of Technology; Guangzhou Guangdong 510006 China
- Artie-McFerrin Department of Chemical Engineering; Texas A&M University; College Station TX 77843-3122 USA
| | - Liang-Yin Chu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan 610065 China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan 610065 China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM); Nanjing Jiangsu 211816 China
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6
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Ji Zhang, Kun Yuan, Wang YP, Zhang ST, Ji Zhang. Preparation and PH Responsive Behavior of Poly(Vinyl Alcohol)— Chitosan—Poly(Acrylic acid) Full-IPN Hydrogels. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911506076046] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A full-interpenetrating polymer network (Full-IPN) hydrogel based on poly(vinyl alcohol)/chitosan/poly(acrylic acid) by the simultaneous-IPN method was synthesized and characterized by FT-IR and scanning electron microscopy. By varying the composition, different gels with different swelling dynamics, pH behavior and shrinking behavior of the gels were obtained. All the hydrogels swelled and reached equilibrium within five hours, indicating that the hydrogels have fast swelling properties and a relatively high swelling ratio (SR). Increasing the hydrophilic PAA in the full-IPN hydrogels increased the SR. The introduction of PVA and CTS to the full-IPN enhanced the hydrogel's biocompatibility. The poly(vinyl alcohol)/chitosan/poly(acrylic acid) full-IPN hydrogels exhibited a swelling change in response to pH of the swelling medium, and could be useful a potential modulation systems in biomedical fields.
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Affiliation(s)
- Ji Zhang
- Polymer Institute, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China,
| | - Kun Yuan
- Polymer Institute, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yun-Pu Wang
- Polymer Institute, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Shen-Tang Zhang
- College of Life Science, Northwest Normal University Lanzhou 730070, China
| | - Ji Zhang
- College of Life Science, Northwest Normal University Lanzhou 730070, China
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7
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Lim D, Lee E, Kim H, Park S, Baek S, Yoon J. Multi stimuli-responsive hydrogel microfibers containing magnetite nanoparticles prepared using microcapillary devices. SOFT MATTER 2015; 11:1606-1613. [PMID: 25594916 DOI: 10.1039/c4sm02564d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Extensive research efforts have been devoted to the development of hydrogel microfibers for tissue engineering, because the vascular structure is related to the transport of nutrients and oxygen as well as the control of metabolic and mechanical functions in the human body. Even though stimuli-responsive properties would enhance the potential applicability of hydrogel microfibers for artificial tissue architectures, previous studies of their fabrication have not considered changes in the microfibers in response to external stimuli. In this work, we prepared temperature-responsive poly(N-isopropylacrylamide) (PNIPAm) microfibers with controlled shapes and sizes by the in situ photo-polymerization of aqueous monomers loaded in calcium alginate templates generated from microcapillary devices. We found that the shape and size of the hydrogel microfibers could be controlled by adjusting the injection positions of the solutions and varying the diameters of the inner capillary, respectively. We further fabricated light-responsive materials by incorporating photothermal magnetite nanoparticles (MNPs) within the temperature-responsive PNIPAm hydrogel microfibers. Because the MNPs incorporated into the PNIPAm microfibers generated heat upon the absorption of visible light, we could demonstrate volume changes in the microfibers triggered by both visible light irradiation and temperature.
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Affiliation(s)
- Daeun Lim
- Department of Chemistry, Dong-A University, 37 Nakdong-Daero 550beon-gil, Saha-gu, Busan 604-714, Republic of Korea.
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8
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Microwave Assisted Synthesis of Poly (Acrylamide-co-2-Hydroxyethyl Methacrylate)/Poly(Vinyl Alcohol) Semi-IPN Hydrogel. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.egypro.2014.07.171] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Jia F, Mao JL, Yang XY, Ma Y, Yao C. Thermal, physical and mechanical properties of hydrogenated dimer acid-based Nylon 636/Nylon 66 copolymers. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Yan F, Wang M, Cao D, Guo S, Chen L. Preparation of thermosensitive, calix[4]arene incorporated P(NIPAM‐
co
‐HBCalix) hydrogel as a reusable adsorbent of nickel(II) ions. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26625] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fanyong Yan
- State Key Laboratory of Hollow Fiber Membrane Materials and ProcessesKey Lab of Fiber Modification & Functional Fiber of TianjinTianjin Polytechnic UniversityTianjin300387 People's Republic of China
| | - Meng Wang
- State Key Laboratory of Hollow Fiber Membrane Materials and ProcessesKey Lab of Fiber Modification & Functional Fiber of TianjinTianjin Polytechnic UniversityTianjin300387 People's Republic of China
| | - Donglei Cao
- State Key Laboratory of Hollow Fiber Membrane Materials and ProcessesKey Lab of Fiber Modification & Functional Fiber of TianjinTianjin Polytechnic UniversityTianjin300387 People's Republic of China
| | - Shanshan Guo
- State Key Laboratory of Hollow Fiber Membrane Materials and ProcessesKey Lab of Fiber Modification & Functional Fiber of TianjinTianjin Polytechnic UniversityTianjin300387 People's Republic of China
| | - Li Chen
- State Key Laboratory of Hollow Fiber Membrane Materials and ProcessesKey Lab of Fiber Modification & Functional Fiber of TianjinTianjin Polytechnic UniversityTianjin300387 People's Republic of China
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11
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Rheological studies on PNIPAAm hydrogel synthesis via in situ polymerization and on resulting viscoelastic properties. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2012.08.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Liu XW, Zhu S, Wu SR, Wang P, Han GZ. Response behavior of ion-sensitive hydrogel based on crown ether. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.09.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Kajjari PB, Manjeshwar LS, Aminabhavi TM. Novel pH- and temperature-responsive blend hydrogel microspheres of sodium alginate and PNIPAAm-g-GG for controlled release of isoniazid. AAPS PharmSciTech 2012; 13:1147-57. [PMID: 22956057 DOI: 10.1208/s12249-012-9838-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 08/11/2012] [Indexed: 01/02/2023] Open
Abstract
This paper reports the preparation and characterization of novel pH- and thermo-responsive blend hydrogel microspheres of sodium alginate (NaAlg) and poly(N-isopropylacrylamide)(PNIPAAm)-grafted-guar gum (GG) i.e., PNIPAAm-g-GG by emulsion cross-linking method using glutaraldehyde (GA) as a cross-linker. Isoniazid (INZ) was chosen as the model antituberculosis drug to achieve encapsulation up to 62%. INZ has a plasma half-life of 1.5 h, whose release was extended up to 12 h. Fourier transform infrared spectroscopy was used to confirm the grafting reaction and chemical stability of INZ during the encapsulation. Differential scanning calorimetry was used to investigate the drug's physical state, while powder X-ray diffraction confirmed the molecular level dispersion of INZ in the matrix. Scanning electron microscopy confirmed varying surface morphologies of the drug-loaded microspheres. Temperature- and pH-responsive nature of the blend hydrogel microspheres were investigated by equilibrium swelling, and in vitro release experiments were performed in pH 1.2 and pH 7.4 buffer media at 37°C as well as at 25°C. Kinetics of INZ release was analyzed by Ritger-Peppas empirical equation to compute the diffusional exponent parameter (n), whose value ranged between 0.27 and 0.58, indicating the release of INZ follows a diffusion swelling controlled release mechanism.
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14
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Yi G, Zhu Z, Wang F, Chen X, Yang J, Huang Y. Study of Phase Separation of Poly(N-isopropylacrylamide-co-styrene) Aqueous Solutions with Rayleigh Scattering Technique. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Preparation of thermosensitive hydrogels by means of tandem physical and chemical crosslinking. Macromol Res 2011. [DOI: 10.1007/s13233-011-0308-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Diffusion of poly(ethylene glycol) and ectoine in NIPAAm hydrogels with confocal Raman spectroscopy. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2399-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Yin J, Li C, Wang D, Liu S. FRET-Derived Ratiometric Fluorescent K+ Sensors Fabricated from Thermoresponsive Poly(N-isopropylacrylamide) Microgels Labeled with Crown Ether Moieties. J Phys Chem B 2010; 114:12213-20. [DOI: 10.1021/jp1052369] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Yin
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Changhua Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Di Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
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18
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Jia L, Zhong W, Wen T, Bian F. Thermo and pH Dual-Responsive Micelles of N-phthaloylchitosan-g-Poly(N-isopropylacrylamide) and Poly(acrylic acid-co-tert-butyl acrylate) for Drug Delivery. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2010. [DOI: 10.1080/10601325.2010.501638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Lixia Jia
- a College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou, P. R. China
| | - Weilan Zhong
- a College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou, P. R. China
| | - Ting Wen
- a College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou, P. R. China
| | - Fengling Bian
- a College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou, P. R. China
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19
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Poly(maleic anhydride-co-acrylic acid)/poly(ethylene glycol) hydrogels with pH- and ionic-strength-responses. CHINESE JOURNAL OF POLYMER SCIENCE 2010. [DOI: 10.1007/s10118-010-9191-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Karbarz M, Pyrzynska K, Romanski J, Jurczak J, Stojek Z. New poly(N-δ-acryloyl ornithine) gels cross-linked with N,N′-methylenebisacrylamide. Sorption properties. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.05.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Wei HL, Yang Z, Chu HJ, Zhu J, Li ZC, Cui JS. Facile preparation of poly(N-isopropylacrylamide)-based hydrogels via aqueous Diels–Alder click reaction. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.02.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Varaprasad K, Ravindra S, Reddy NN, Vimala K, Raju KM. Design and development of temperature sensitive porous poly(NIPAAm-AMPS) hydrogels for drug release of doxorubicin-a cancer chemotherapy drug. J Appl Polym Sci 2010. [DOI: 10.1002/app.31917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Karbarz M, Gniadek M, Stojek Z. Electroanalytical Properties of ITO Electrodes Modified with Environment-Sensitive Poly(N-isopropylacrylamide) Gel and Prussian Blue. ELECTROANAL 2009. [DOI: 10.1002/elan.200804544] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Wang ZC, Xu XD, Chen CS, Wang GR, Cheng SX, Zhang XZ, Zhuo RX. In situ formation of thermosensitive P(NIPAAm-co-GMA)/PEI hydrogels. REACT FUNCT POLYM 2009. [DOI: 10.1016/j.reactfunctpolym.2008.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Li W, Wang J, Zou L, Zhu S. Synthesis and characteristic of the thermo- and pH-sensitive hydrogel and microporous hydrogel induced by the NP-10 aqueous two-phase system. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.08.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Kosik K, Wilk E, Geissler E, László K. Influence of a Crown Ether Comonomer on the Temperature-Induced Phase Transition of Poly(N-isopropylacrylamide) Hydrogels. J Phys Chem B 2008; 112:1065-70. [DOI: 10.1021/jp075227w] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Katalin Kosik
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budapest 1521, Hungary, and Laboratoire de Spectrométrie Physique CNRS UMR5588, Université J. Fourier de Grenoble, B.P. 87, 38402 St Martin d'Hères cedex, France
| | - Erzsébet Wilk
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budapest 1521, Hungary, and Laboratoire de Spectrométrie Physique CNRS UMR5588, Université J. Fourier de Grenoble, B.P. 87, 38402 St Martin d'Hères cedex, France
| | - Erik Geissler
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budapest 1521, Hungary, and Laboratoire de Spectrométrie Physique CNRS UMR5588, Université J. Fourier de Grenoble, B.P. 87, 38402 St Martin d'Hères cedex, France
| | - Krisztina László
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budapest 1521, Hungary, and Laboratoire de Spectrométrie Physique CNRS UMR5588, Université J. Fourier de Grenoble, B.P. 87, 38402 St Martin d'Hères cedex, France
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27
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Wei H, Zhang XZ, Chen WQ, Cheng SX, Zhuo RX. Self‐assembled thermosensitive micelles based on poly(
L
‐lactide‐star block‐
N
‐isopropylacrylamide) for drug delivery. J Biomed Mater Res A 2007; 83:980-989. [PMID: 17584891 DOI: 10.1002/jbm.a.31295] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A novel seven-arm star block copolymer poly(L-lactide-star block-N-isopropylacrylamide) (PLLA-sb-PNIPAAm), comprised of a hydrophobic poly(L-lactide) (PLLA) arm and an average of six hydrophilic poly(N-isopropylacrylamide) (PNIPAAm) arms, was designed and synthesized. The amphiphilic PLLA-sb-PNIPAAm copolymer was capable of self-assembling into nano-sized micelle in water, which was confirmed by FT-IR, 1H NMR and fluorescence spectroscopy. Transmission electron microscopy images showed that these nano-sized micelles were regularly spherical in shape. Micelle size determined by size analysis was around 100 nm in diameter. The micelles showed reversible dispersion/aggregation in response to temperature changes through an outer polymer shell of PNIPAAm at around 31 degrees C, observed by optical absorbance measurements. The anticancer drug methotrexate (MTX) as model drug was loaded in the polymeric nano-sized micelles. In vitro release behavior of MTX was investigated, which showed a drastic thermoresponsive fast/slow switching behavior according to the temperature-responsive structural changes of a micellar shell structure. The reversible and sensitive thermoresponse of this micelle might provide opportunities to construct a novel drug delivery system in conjunction with localized hyperthermia.
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Affiliation(s)
- Hua Wei
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
| | - Xian-Zheng Zhang
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
| | - Wen-Qin Chen
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
| | - Si-Xue Cheng
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
| | - Ren-Xi Zhuo
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, People's Republic of China
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28
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Wei H, Zhang X, Cheng C, Cheng SX, Zhuo RX. Self-assembled, thermosensitive micelles of a star block copolymer based on PMMA and PNIPAAm for controlled drug delivery. Biomaterials 2007; 28:99-107. [PMID: 16959312 DOI: 10.1016/j.biomaterials.2006.08.030] [Citation(s) in RCA: 171] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2006] [Accepted: 08/11/2006] [Indexed: 10/24/2022]
Abstract
A four-arm star block copolymer, comprised of a hydrophobic PMMA arm and an average of three hydrophilic poly(N-isopropylacrylamide) (PNIPAAm) arms were designed and synthesized from the molecular level. The amphiphilic star block copolymer is capable of self-assembling into micelles in water, which was confirmed by FT-IR, (1)H NMR and fluorescence spectroscopy. Transmission electron microscopy images showed that these nanoparticles were regularly spherical in shape. The micelles showed reversible dispersion/aggregation in response to temperature cycles through an outer polymer shell lower critical solution temperature (LCST) for PNIPAAm at around 34 degrees C, observed by optical absorbance measurements. Resulted polymeric micelles loaded with prednisone acetate showed a much improved drug release behavior due to the special micellar structure.
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Affiliation(s)
- Hua Wei
- Department of Chemistry & Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, PR China
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29
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Wei H, Zhang XZ, Cheng H, Chen WQ, Cheng SX, Zhuo RX. Self-assembled thermo- and pH responsive micelles of poly(10-undecenoic acid-b-N-isopropylacrylamide) for drug delivery. J Control Release 2006; 116:266-74. [PMID: 17097179 DOI: 10.1016/j.jconrel.2006.08.018] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Revised: 07/19/2006] [Accepted: 08/29/2006] [Indexed: 11/24/2022]
Abstract
An amphiphilic AB block copolymer composed of poly(N-isopropylacrylamide) as a hydrophilic segment and poly(10-undecenoic acid) as a hydrophobic segment was synthesized. Cytotoxicity study of this copolymer exhibited no significant cytotoxicity. The lower critical solution temperature (LCST) of the copolymer was 30.8 degrees C, as determined by the turbidity method. The block copolymer forms micelles in an aqueous medium at the temperature lower than the LCST. Transmission electron microscopy images showed that these micelles were regularly spherical in shape. The micelle size determined by size analysis was around 160 nm. The anti-inflammation drug prednisone acetate was incorporated into the micelles and the release profiles of prednisone acetate showed a dramatic thermoresponsive switching behavior and a unique pH responsive behavior. Moreover, the pH responsive behavior was in relation to the thermoresponsive behavior. That is, the micelles were not pH sensitive at the temperature below the LCST, but the aggregates were pH sensitive at the temperature above the LCST. Based on these results, the thermo- and pH responsive micelles have great potential to be a novel carrier for drug delivery.
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Affiliation(s)
- Hua Wei
- Department of Chemistry and Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, P. R. China
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30
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Karbarz M, Pulka K, Misicka A, Stojek Z. pH and temperature-sensitive N-isopropylacrylamide ampholytic networks incorporating L-lysine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7843-7. [PMID: 16922572 DOI: 10.1021/la060334n] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Ampholytic polymer gels based on N-isopropylacrylamide (NIPA) and natural amino acid L-lysine were prepared by free radical polymerization in aqueous solutions. To make amino acids attachable to the polymer chain, the acrylic group was added to the epsilon-amino group of lysine to obtain N-epsilon-acrylic-lysine (Z). Finally, a new temperature- and pH-sensitive (NIPA-Z) hydrogel was obtained. The presence of amino and carboxylic groups of amino acids gave us a possibility to control the amount and sign of the excessive charge on the polymeric network with respect to pH. The swelling behavior of the NIPA-Z hydrogels with respect to the amount of Z (0-4%), temperature, and pH was investigated. Temperature and pH were changed in the ranges of 20-50 degrees C and 2-12, respectively. To eliminate the influence of ionic strength on the swelling behavior, this parameter was kept constant in all experiments. It was found that the pH dependence of the degree of swelling for the NIPA-Z gels, measured at constant temperature, exhibits a minimum. Such a minimum was seen for the ampholyte networks with independent acidic and basic groups attached to the polymer chains. For the NIPA-Z gels, the minimum was wide, and the pH range over which it was spread corresponded well to the pH distribution of the zwitterions. The way the gel volume changed with an increase in temperature depends on the amino acid amount. It is initially discontinuous and turns to the continuous one for the higher percentage of amino acid. The temperature dependence of the swelling process obtained for different pH values clearly shows that for the pH region where the zwitterions dominate, the polymer networks collapse more efficiently.
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Affiliation(s)
- Marcin Karbarz
- Department of Chemistry, Warsaw University, Pasteura 1, PL-02-093 Warsaw, Poland
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31
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Wei H, Zhang XZ, Zhou Y, Cheng SX, Zhuo RX. Self-assembled thermoresponsive micelles of poly(N-isopropylacrylamide-b-methyl methacrylate). Biomaterials 2006; 27:2028-34. [PMID: 16225918 DOI: 10.1016/j.biomaterials.2005.09.028] [Citation(s) in RCA: 184] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2005] [Accepted: 09/26/2005] [Indexed: 10/25/2022]
Abstract
To achieve a combination of spatial specificity in a passive manner with a stimuli-response targeting mechanism, a temperature-responsive polymeric micelle was prepared using block copolymers of poly(N-isopropylacrylamide-b-methyl methacrylate) (PNIPAAm-b-PMMA). The critical micelle concentration of amphiphilic block copolymers in aqueous solution was determined by fluorescence spectroscopy using pyrene as a fluorescence probe. Transmission electron microscopy images showed that these nanoparticles were regularly spherical in shape. Micelle size determined by size analysis was around 190 nm. The micelles showed reversible dispersion/aggregation in response to temperature cycles through an outer polymer shell lower critical solution temperature (LCST) for PNIPAAm at around 33 degrees C, observed by optical absorbance measurements and dynamic light scattering (DLS). The anti-inflammation drug prednisone acetate was loaded as the model drug in the polymeric nanoparticles. In vitro release behavior of prednisone acetate was investigated, which showed a dramatic thermoresponsive fast/slow switching behavior according to the temperature-responsive structural changes of a micellar shell structure. The reversible and sensitive thermoresponse of this micelle might provide opportunities to construct a novel drug delivery system in conjunction with localized hyperthermia.
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Affiliation(s)
- Hua Wei
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, PR China
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32
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Emik S, Gürdağ G. Synthesis and swelling behavior of thermosensitive poly(N-isopropyl acrylamide-co-sodium-2-acrylamido-2-methyl propane sulfonate) and poly(N-isopropyl acrylamide-co-sodium-2-acrylamido-2-methyl propane sulfonate-co-glycidyl methacrylate) hydrogels. J Appl Polym Sci 2006. [DOI: 10.1002/app.23126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Çavuş S, Gürkaynak MA. Influence of monofunctional reactants on the physical properties of dimer acid-based polyamides. POLYM ADVAN TECHNOL 2006. [DOI: 10.1002/pat.694] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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Xiangli Q, Zhenjia Z, Side Y. Preparation of initiator and cross-linker-free poly(N-isopropylacrylamide) nanogels by photopolymerization. J Photochem Photobiol A Chem 2006. [DOI: 10.1016/j.jphotochem.2005.05.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Durme KV, Van Mele B, Loos W, Du Prez FE. Introduction of silica into thermo-responsive poly(N-isopropyl acrylamide) hydrogels: A novel approach to improve response rates. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.08.032] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Karbarz M, Gniadek M, Stojek Z. One Dimensional Volume-Phase Transition of N-Isopropylacrylamide Gels on the Surface of Gold Electrodes. ELECTROANAL 2005. [DOI: 10.1002/elan.200503294] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Zhang XZ, Chu CC. Temperature-Sensitive Poly(N-Isopropylacrylamide)/Poly(Ethylene Glycol) Diacrylate Hydrogel Microspheres. ACTA ACUST UNITED AC 2005. [DOI: 10.2165/00137696-200503010-00006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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38
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Cheng SX, Zhang JT, Zhuo RX. Macroporous poly(N-isopropylacrylamide) hydrogels with fast response rates and improved protein release properties. ACTA ACUST UNITED AC 2003; 67:96-103. [PMID: 14517866 DOI: 10.1002/jbm.a.10062] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A series of temperature-sensitive poly(N-isopropylacrylamide) (PNIPA) hydrogels with large pore size and fast response were prepared by carrying out polymerizations in aqueous sodium chloride solutions with different concentrations. In comparison with conventional PNIPA hydrogels, the PNIPA gels thus prepared have remarkably larger swelling ratios below their lower critical solution temperature (LCST), and exhibit much faster response rates as the temperature is raised above their LCST. The improved properties are due to the presence of inorganic salt, NaCl, which leads the phase separation and formation of a heterogeneous porous structure during the polymerizations. The study on the drug release properties shows the macroporous hydrogels exhibit modulated release in response to temperature. The model protein, bovine serum albumin (BSA), can be released completely from the porous hydrogels at the temperature lower than the LCST because the pore size of the hydrogels is larger than the protein molecules. However, the release of BSA from the gels almost stops after a "burst" release in the initial stage at the temperature higher than the LCST because the pores are closed at the high temperature.
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Affiliation(s)
- Si-Xue Cheng
- Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China
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