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Wang J, Pan Z, Liu J, Shao Q, Liang Y, Huang S, Jin W, Li Z, Zhang Z, Ye C, Chen Y, Wei P, Wang Y, He Y, Xia Y. Thermoresponsive homo-polymeric ionic liquid as molecular transporters via tailoring interchain π-π interactions and its unique Temp-resistance behavior during ions pairing. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Li Y, Liu L, Xu H, Cheng Z, Yan J, Xie XM. Biomimetic Gradient Hydrogel Actuators with Ultrafast Thermo-Responsiveness and High Strength. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32541-32550. [PMID: 35791697 DOI: 10.1021/acsami.2c07631] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Most current hydrogel actuators suffer from either poor mechanical properties or limited responsiveness. Also, the widely used thermo-responsive poly-(N-isopropylacrylamide) (PNIPAM) homopolymer hydrogels have a slow response rate. Thus, it remains a challenge to fabricate thermo-responsive hydrogel actuators with both excellent mechanical and responsive properties. Herein, ultrafast thermo-responsive VSNPs-P(NIPAM-co-AA) hydrogels containing multivalent vinyl functionalized silica nanoparticles (VSNPs) are fabricated. The ultrafast thermo-responsiveness is due to the mobile polymer chains grafted from the surfaces of the VSNPs, which can facilitate hydrophobic aggregation, inducing the phase transition and generating water transport channels for quick water expulsion. In addition, the copolymerization of NIPAM with acrylic acid (AA) decreases the transition temperature of the thermo-responsive PNIPAM-based hydrogels, contributing to ultrafast thermo-responsive shrinking behavior with a large volume change of as high as 72.5%. Moreover, inspired by nature, intelligent hydrogel actuators with gradient structure can be facilely prepared through self-healing between the ultrafast thermo-responsive VSNPs-P(NIPAM-co-AA) hydrogel layers and high-strength VSNPs-PAA-Fe3+ multibond network (MBN) hydrogel layers. The obtained well-integrated gradient hydrogel actuators show ultrafast thermo-responsive performance within only 9 s in 60 °C water, as well as high strength, and can be used for more practical applications as intelligent soft actuators or artificial robots.
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Affiliation(s)
- Yuxi Li
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Licheng Liu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Hao Xu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhihan Cheng
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jianhui Yan
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xu-Ming Xie
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Banerjee P, Anas M, Jana S, Mandal TK. Recent developments in stimuli-responsive poly(ionic liquid)s. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02091-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Tuan HNA, Nhu VTT. Synthesis and Properties of pH-Thermo Dual Responsive Semi-IPN Hydrogels Based on N, N'-Diethylacrylamide and Itaconamic Acid. Polymers (Basel) 2020; 12:E1139. [PMID: 32429371 PMCID: PMC7285170 DOI: 10.3390/polym12051139] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 11/16/2022] Open
Abstract
A series of semi-interpenetrating polymer network (semi-IPN) hydrogels based on N,N'-diethylacrylamide (DEA) and itaconamic acid (IAM) were synthesized by changing the molar ratio of linear copolymer P(DEA-co-IAM) and DEA monomer. Linear copolymer P(DEA-co-IAM) was introduced into a solution of DEA monomer to prepare pH-thermo dual responsive P(DEA-co-IAM)/PDEA semi-IPN hydrogels. The thermal gravimetric analysis (TGA) revealed that the semi-IPN hydrogel has a higher thermal stability than the conventional hydrogel, while the interior morphology by scanning electron microscopy (SEM) showed a porous structure with the pore sizes could be controlled by changing the ratio of linear copolymer in the obtained hydrogels. The oscillatory parallel-plate rheological measurements and compression tests demonstrated a viscoelastic behavior and superior mechanical properties of the semi-IPN hydrogels. Besides, the lower critical solution temperature (LCST) of the linear copolymers increased with the increase of IAM content in the feed, while the semi-IPN hydrogels increased LCSTs with the increase of linear copolymer content introduced. The pH-thermo dual responsive of the hydrogels was investigated using the swelling behavior in various pH and temperature conditions. Finally, the swelling and deswelling rate of the hydrogels were also studied. The results indicated that the pH-thermo dual responsive semi-IPN hydrogels were synthesized successfully and may be a potential material for biomedical, drug delivery or absorption applications. The further applications of semi-IPN hydrogels are being conducted.
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Affiliation(s)
- Huynh Nguyen Anh Tuan
- Faculty of Chemical and Food Technology, HCMC University of Technology and Education, #1, Vo Van Ngan Street, Linh Chieu Ward, Thu Duc District, Ho Chi Minh City 70000, Vietnam;
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Rwei SP, Tuan HNA, Chiang WY, Way TF. Synthesis and Characterization of pH and Thermo Dual-Responsive Hydrogels with a Semi-IPN Structure Based on N-Isopropylacrylamide and Itaconamic Acid. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E696. [PMID: 29710793 PMCID: PMC5978073 DOI: 10.3390/ma11050696] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 04/22/2018] [Accepted: 04/24/2018] [Indexed: 11/28/2022]
Abstract
A series of semi-interpenetrating polymer network (semi-IPN) hydrogels were synthesized and investigated in this study. Linear copolymer poly(N-isopropylacrylamide-co-itaconamic acid) p(NIPAM-co-IAM), which is formed by copolymerization of N-isopropylacrylamide (NIPAM) and itaconamic acid (IAM, 4-amino-2-ethylene-4-oxobutanoic acid), was introduced into a solution of NIPAM to form a series of pH and thermo dual-responsive p(NIPAM-co-IAM)/pNIPAM semi-IPN hydrogels by free radical polymerization. The structural, morphological, chemical, and physical properties of the linear copolymer and semi-IPN hydrogels were investigated. The semi-IPN hydrogel showed high thermal stability according to thermal gravimetric analyzer (TGA). Scanning electronic microscopy (SEM) images showed that the pore size was in the range of 119~297 µm and could be controlled by the addition ratio of the linear copolymer in the semi-IPN structure. The addition of linear copolymer increased the fracture strain from 57.5 ± 2.9% to 91.1 ± 4.9% depending on the added amount, while the compressive modulus decreased as the addition increased. Moreover, the pH and thermo dual-responsive properties were investigated using differential scanning calorimetry (DSC) and monitoring the swelling behavior of the hydrogels. In deionized (DI) water, the equilibrium swelling ratio of the hydrogels decreased as the temperature increased from 20 °C to 50 °C, while it varied in various pH buffer solutions. In addition, the swelling and deswelling rates of the hydrogels also significantly increased. The results indicate that the novel pH-thermo dual-responsive semi-IPN hydrogels were synthesized successfully and may be a potential material for biomedical, drug delivery, or absorption application.
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Affiliation(s)
- Syang-Peng Rwei
- Institute of Organic and Polymeric Materials, Research and Development Center for Smart Textile Technology, National Taipei University of Technology, #1, Sec 3, Chung-Hsiao E. Rd, Taipei, Taiwan.
| | - Huynh Nguyen Anh Tuan
- Institute of Organic and Polymeric Materials, Research and Development Center for Smart Textile Technology, National Taipei University of Technology, #1, Sec 3, Chung-Hsiao E. Rd, Taipei, Taiwan.
| | - Whe-Yi Chiang
- Institute of Organic and Polymeric Materials, Research and Development Center for Smart Textile Technology, National Taipei University of Technology, #1, Sec 3, Chung-Hsiao E. Rd, Taipei, Taiwan.
| | - Tun-Fun Way
- Institute of Organic and Polymeric Materials, Research and Development Center for Smart Textile Technology, National Taipei University of Technology, #1, Sec 3, Chung-Hsiao E. Rd, Taipei, Taiwan.
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Poly (MAH-β-cyclodextrin-co-NIPAAm) hydrogels with drug hosting and thermo/pH-sensitive for controlled drug release. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2017.11.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Supramolecular assembly of poly(β-cyclodextrin) block copolymer and benzimidazole-poly(ε-caprolactone) based on host-guest recognition for drug delivery. Colloids Surf B Biointerfaces 2017; 160:364-371. [DOI: 10.1016/j.colsurfb.2017.09.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/20/2017] [Accepted: 09/21/2017] [Indexed: 11/20/2022]
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Yan L, Pham DT, Clements P, Lincoln SF, Wang J, Guo X, Easton CJ. β-Cyclodextrin- and adamantyl-substituted poly(acrylate) self-assembling aqueous networks designed for controlled complexation and release of small molecules. Beilstein J Org Chem 2017; 13:1879-1892. [PMID: 29062407 PMCID: PMC5629389 DOI: 10.3762/bjoc.13.183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 08/21/2017] [Indexed: 12/21/2022] Open
Abstract
Three aqueous self-assembling poly(acrylate) networks have been designed to gain insight into the factors controlling the complexation and release of small molecules within them. These networks are formed between 8.8% 6A-(2-aminoethyl)amino-6A-deoxy-6A-β-cyclodextrin, β-CDen, randomly substituted poly(acrylate), PAAβ-CDen, and one of the 3.3% 1-(2-aminoethyl)amidoadamantyl, ADen, 3.0% 1-(6-aminohexyl)amidoadamantyl, ADhn, or 2.9% 1-(12-aminododecyl)amidoadamantyl, ADddn, randomly substituted poly(acrylate)s, PAAADen, PAAADhn and PAAADddn, respectively, such that the ratio of β-CDen to adamantyl substituents is ca. 3:1. The variation of the characteristics of the complexation of the dyes methyl red, methyl orange and ethyl orange in these three networks and by β-cyclodextrin, β-CD, and PAAβ-CDen alone provides insight into the factors affecting dye complexation. The rates of release of the dyes through a dialysis membrane from the three aqueous networks show a high dependence on host–guest complexation between the β-CDen substituents and the dyes as well as the structure and the viscosity of the network as shown by ITC, 1H NMR and UV–vis spectroscopy, and rheological studies. Such networks potentially form a basis for the design of controlled drug release systems.
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Affiliation(s)
- Liang Yan
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Duc-Truc Pham
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Philip Clements
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Stephen F Lincoln
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Jie Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Christopher J Easton
- Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
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Thermo-and pH-sensitive hydrogel membranes composed of poly(N-isopropylacrylamide)-hyaluronan for biomedical applications: Influence of hyaluronan incorporation on the membrane properties. Int J Biol Macromol 2017; 106:158-167. [PMID: 28780413 DOI: 10.1016/j.ijbiomac.2017.08.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 07/01/2017] [Accepted: 08/01/2017] [Indexed: 11/20/2022]
Abstract
Interpenetrating hydrogel membranes consisting of pH-sensitive hyaluronan (HA) and thermo-sensitive poly(N-isopropylacrylamide) (PNIPAAM) were synthesized using redox polymerization, followed by N,N-methylenebisacrylamide (BIS) and epichlorohydrin (EPI) were added as chemical crosslinkers. The interaction between membrane compositions has been characterized by FTIR spectroscopy and discussed intensively. The result indicates that HA incorporation in membranes increase the gel fraction, swelling uptake, and the flexibility/elasticity of crosslinked membranes, however it reduced oppositely the mechanical elongation of membranes. PNIPAAm-HA hydrogels responded to both temperature and pH changes and the stimuli-responsiveness was reversible. However, in vitro bioevaluation results revealed that the released ampicillin during the burst release time was sharply influenced and increased with increasing HA contents in membranes; afterwards it became sustainable. Whereas, high HA contents in hydrogels unexpectedly impacted negatively on the cells viability, owing to the viscosity of cell culture media changed. A big resistance was observed against microbial growth of Staphylococcus aureus, Salmonella typhi, and Candida albicans in case of pure PNIPAAm hydrogel membranes without HA or ampicillin. However, HA incorporation or the loaded ampicillin in membranes showed unexpected easily microbial growth. The fast release performance with dual pH-thermo-sensitive hydrogels were suggested as promising materials for quick drug carrier in the biomedical field.
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The preparation and applications of novel phosphazene crosslinked thermo and pH responsive hydrogels. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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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Dutta S, Dhara D. Improved swelling-deswelling behavior of poly(N-isopropyl acrylamide) gels with poly(N,N′-dimethyl aminoethyl methacrylate) grafts. J Appl Polym Sci 2015. [DOI: 10.1002/app.42749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sujan Dutta
- Department of Chemistry; Indian institute of Technology Kharagpur; West Bengal 721302 India
| | - Dibakar Dhara
- Department of Chemistry; Indian institute of Technology Kharagpur; West Bengal 721302 India
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