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Yin H, You M, Shi X, Yu H, Chen Q. New insights into pure zwitterionic hydrogels with high strength and high toughness. MATERIALS HORIZONS 2024; 11:3946-3960. [PMID: 38874530 DOI: 10.1039/d4mh00164h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Zwitterionic hydrogels are electrically neutral materials with both cationic and anionic groups that impart excellent anti-fouling properties and ion channel orientations. However, pure zwitterionic hydrogels generally exhibit low strength and toughness. In this study, it has been discovered that polymerizable zwitterionic monomers in aqueous solution exhibit a unique liquid-liquid phase separation phenomenon at a high monomer concentration of ≥50 wt%, resulting in pure and commercial zwitterionic hydrogels with high compressive strength (6.5 MPa) and high toughness (2.12 kJ m-2). This phase separation and the corresponding aggregations might be caused by strong dipole-dipole interactions among residual zwitterionic monomers under the lack of free-water condition. The synergistic effect of liquid-liquid phase separation and polymer entanglement enhances the mechanical strength, toughness, self-recovery, and anti-freezing properties of pure polyzwitterionic hydrogels. Moreover, the high fracture energy of highly elongated yet tough polyzwitterionic hydrogels facilitates the development of high crack propagation resistance, which supports an expanded role in tissue engineering, soft flexible devices, and electronics applications with improved durability. A wide range of applications for the proposed polyzwitterionic hydrogels is demonstrated by the development and testing of a strain sensor and a triboelectric nanogenerator device. Our findings provide novel insights into the network structure of pure polyzwitterionic hydrogels.
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Affiliation(s)
- Haiyan Yin
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Min You
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Xinlei Shi
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Hui Yu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Qiang Chen
- Joint Research Center of Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China.
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
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2
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Yin F, Liu Q, Hu J, Ju Y. Natural Oleanolic Acid-Tailored Eutectogels Featuring Multienvironment Shape Memory Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6424-6432. [PMID: 38264907 DOI: 10.1021/acsami.3c17517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Shape memory gels, one of the primary modern smart materials, hold great promise in a myriad of applications spanning from soft robotics to medical devices. Nevertheless, most shape memory gels rely on water, organic solvents, and ionic liquids as dispersion mediums, posing the risks of freezing, dehydration, and toxicity to humans or environment. Herein, we have developed a thermoresponsive shape memory eutectogel by introducing an oleanolic acid-modified polyacrylamide network into a deep eutectic solvent (DES). The resulting eutectogel shows a fracture strength of 4.46 MPa along with elongation of 345%, Young's modulus of 14.83 MPa, and toughness of 9.51 MJ m-3. Thanks to the low freezing point and low volatility inherited from DES, this eutectogel possesses good antifreezing and long-term storage stability, which facilitate the shape memory behavior both in silicone oil and in air. The shape fixity and shape recovery ratios of this eutectogel maintain almost 90% during 10 cycles in silicone oil and more than 70% during four cycles in air that cannot be realized in hydrogels. By virtue of shape memory effect and conductivity, the eutectogel can be further used as a thermoswitch. This work presents a simple approach to fabricating shape memory eutectogels and imparts exciting prospects to smart eutectogels.
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Affiliation(s)
- Feng Yin
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qian Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jun Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yong Ju
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
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3
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Qian Y, Lu S, Meng J, Chen W, Li J. Thermo-Responsive Hydrogels Coupled with Photothermal Agents for Biomedical Applications. Macromol Biosci 2023; 23:e2300214. [PMID: 37526220 DOI: 10.1002/mabi.202300214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/04/2023] [Indexed: 08/02/2023]
Abstract
Intelligent hydrogels are materials with abilities to change their chemical nature or physical structure in response to external stimuli showing promising potential in multitudinous applications. Especially, photo-thermo coupled responsive hydrogels that are prepared by encapsulating photothermal agents into thermo-responsive hydrogel matrix exhibit more attractive advantages in biomedical applications owing to their spatiotemporal control and precise therapy. This work summarizes the latest progress of the photo-thermo coupled responsive hydrogel in biomedical applications. Three major elements of the photo-thermo coupled responsive hydrogel, i.e., thermo-responsive hydrogel matrix, photothermal agents, and construction methods are introduced. Furthermore, the recent developments of these hydrogels for biomedical applications are described with some selected examples. Finally, the challenges and future perspectives for photo-thermo coupled responsive hydrogels are outlined.
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Affiliation(s)
- Yafei Qian
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Sha Lu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Jianqiang Meng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Wansong Chen
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Juan Li
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
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4
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Li L, Guo J, Kang C. LCST-UCST Transition Property of a Novel Retarding Swelling and Thermosensitive Particle Gel. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2761. [PMID: 37049054 PMCID: PMC10096131 DOI: 10.3390/ma16072761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Super absorbent resin particles used as profile control and water plugging agent remains a deficiency that the particles swells with high speed when absorbing water, resulting in low strength and limited depth of migration. To address this issue, we proposed a thermosensitive particle gel possessing the upper critical solution temperature (UCST), which was synthesized from hydrophobically modified poly(vinyl alcohol)s (PVA) with glutaraldehyde (GA) as a cross-linker. The structure of the hydrogel was characterized by Fourier transform infrared spectrophotometer (FTIR) and nuclear magnetic resonance (NMR). The thermosensitive-transparency measurement and swelling experiment show that the hydrophobic-modified PVA solutions and corresponding hydrogels exhibited thermosensitive phase transition behaviors with lower critical solution temperature (LCST) and UCST. The results indicated that the temperature-induced phase transition behavior of CHPVA hydrogels leads to their retarding swelling property and great potential as an efficient water plugging agent with excellent temperature and salt resistance.
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Sun Z, Yang L, Xu C, Cai C, Li L. Zwitterionic nanocapsules with pH- and thermal- responsiveness for drug-controlled release. NANOTECHNOLOGY 2023; 34:155101. [PMID: 36630705 DOI: 10.1088/1361-6528/acb215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
The construction of an environmentally responsive drug-release system is of great significance for the treatment of special diseases. In particular, the construction of nanomaterials with pH- and thermal-responsiveness, which can effectively encapsulate drugs and control drug release, is becoming hot research. In this study, zwitterionic nanocapsules with stable core-shell structures were synthesized by inverse reversible addition-fragmentation transfer miniemulsion interfacial polymerization. To further study the structure and performance of the nanocapsules, the prepared nanocapsules were characterized by transmission electron microscopy, dynamic light dispersion, and zeta potential analysis. It was found that the nanocapsules had dual pH- and thermal- responsiveness, and the average particle size ranged from 178 to 142 nm when the temperature changed from 25 °C to 40 °C. In addition, bovine serum albumin (BSA) was encapsulated into nanocapsules, and sustained release experiments were conducted at 10 °C and 40 °C. The results showed that nanocapsules as carriers of BSA could achieve the purpose of sustained release of drugs, and showed different sustained release curves at different temperatures. Finally,in vitrocytotoxicity tests were performed to demonstrate the feasibility of their biomedical application. It is believed that the dual pH- and thermal- responsive nanocapsules are promising for drug-controlled release.
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Affiliation(s)
- Zhijuan Sun
- The Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014, People's Republic of China
| | - Lei Yang
- The Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014, People's Republic of China
| | - Chenchen Xu
- The Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014, People's Republic of China
| | - Chenxin Cai
- The Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014, People's Republic of China
| | - Li Li
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital(Affiliated People's Hospital, Hangzhou Medical College), Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou, Zhejiang Province 310014, People's Republic of China
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Affiliation(s)
- Sven Truckenbrodt
- Convergent Research, E11 Bio. 1600 Harbor Bay Parkway, Alameda, California94502, United States
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7
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Nano-filtration performance and temperature dependency of thin film composite polyamide membranes embedded with thermal responsive zwitterionic nanocapsules. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Clark A, Rosenbaum M, Biswas Y, Asatekin A, Cebe P. Heat capacity and index of refraction of polyzwitterions. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kasza K, Gurnani P, Hardie KR, Cámara M, Alexander C. Challenges and solutions in polymer drug delivery for bacterial biofilm treatment: A tissue-by-tissue account. Adv Drug Deliv Rev 2021; 178:113973. [PMID: 34530014 DOI: 10.1016/j.addr.2021.113973] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/12/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023]
Abstract
To tackle the emerging antibiotic resistance crisis, novel antimicrobial approaches are urgently needed. Bacterial communities (biofilms) are a particular concern in this context. Biofilms are responsible for most human infections and are inherently less susceptible to antibiotic treatments. Biofilms have been linked with several challenging chronic diseases, including implant-associated osteomyelitis and chronic wounds. The specific local environments present in the infected tissues further contribute to the rise in antibiotic resistance by limiting the efficacy of systemic antibiotic therapies and reducing drug concentrations at the infection site, which can lead to reoccurring infections. To overcome the shortcomings of systemic drug delivery, encapsulation within polymeric carriers has been shown to enhance antimicrobial efficacy, permeation and retention at the infection site. In this Review, we present an overview of current strategies for antimicrobial encapsulation within polymeric carriers, comparing challenges and solutions on a tissue-by-tissue basis. We compare challenges and proposed drug delivery solutions from the perspective of the local environments for biofilms found in oral, wound, gastric, urinary tract, bone, pulmonary, vaginal, ocular and middle/inner ear tissues. We will also discuss future challenges and barriers to clinical translation for these therapeutics. The following Review demonstrates there is a significant imbalance between the research focus being placed on different tissue types, with some targets (oral and wound biofims) being extensively more studied than others (vaginal and otitis media biofilms and endocarditis). Furthermore, the importance of the local tissue environment when selecting target therapies is demonstrated, with some materials being optimal choices for certain sites of bacterial infection, while having limited applicability in others.
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Sun Z, Li Y, Zheng SY, Mao S, He X, Wang X, Yang J. Zwitterionic Nanocapsules with Salt- and Thermo-Responsiveness for Controlled Encapsulation and Release. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47090-47099. [PMID: 34559520 DOI: 10.1021/acsami.1c15071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Intelligent polymer nanocapsules that can not only encapsulate substances efficiently but also release them in a controllable manner hold great potential in many applications. To date, although intensive efforts have been made to develop intelligent polymer nanocapsules, how to construct the well-defined core/shell structure with high stability via a straightforward method remains a considerable challenge. In this work, the target novel zwitterionic nanocapsules (ZNCs) with a stable hollow structure were synthesized by inverse reversible addition fragmentation transfer (RAFT) miniemulsion interfacial polymerization. The shell gradually grew from the water/oil interface due to the interfacial polymerization, accompanied by the cross-linking of the polyzwitterionic networks, where the core/shell structure could be well-tuned by adjusting the precursor compositions. The resultant ZNCs exhibited a salt-/thermo-induced swelling behavior through the phase transition of the external zwitterionic polymers. To further investigate the functions of ZNCs, different substances, such as methyl orange and bovine serum albumin (BSA), were encapsulated into the ZNCs with a high encapsulation efficiency of 89.3 and 93.6%, respectively. Interestingly, the loaded substances can be controllably released in aqueous solution triggered by salt or temperature variations, and such responsiveness also can be utilized to bounce off the bacteria adhered on target surfaces. We believe that these designed salt- and thermo-responsive intelligent polymer nanocapsules with well-defined core/shell structures and antifouling surfaces should be a promising platform for biomedical and saline related applications.
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Affiliation(s)
- Zhijuan Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yuting Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Si Yu Zheng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Shihua Mao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaomin He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaoyu Wang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jintao Yang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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11
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Du W, Zhao Z, Zhang M, Jiang X, Zhang X. Preparation and characterization of mechanically robust and thermo-responsive hydrogel inspired by spring-like structure. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Kang S, Park S, Song H, Choi D, Park HE, Ahn BH, Kim SY, Lee Y. Expansion Microscopy with a Thermally Adjustable Expansion Factor Using Thermoresponsive Biospecimen-Hydrogel Hybrids. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28962-28974. [PMID: 34107679 DOI: 10.1021/acsami.1c07592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Expansion microscopy (ExM) is a technique in which swellable hydrogel-embedded biological samples are physically expanded to effectively increase imaging resolution. Here, we develop thermoresponsive reversible ExM (T-RevExM), in which the expansion factor can be thermally adjusted in a reversible manner. In this method, samples are embedded in thermoresponsive hydrogels and partially digested to allow for reversible swelling of the sample-gel hybrid in a temperature-dependent manner. We first synthesized hydrogels exhibiting lower critical solution temperature (LCST)- and upper critical solution temperature (UCST)-phase transition properties with N-alkyl acrylamide or sulfobetaine monomers, respectively. We then formed covalent hybrids between the LCST or UCST hydrogel and biomolecules across the cultured cells and tissues. The resulting hybrid could be reversibly swelled or deswelled in a temperature-dependent manner, with LCST- and UCST-based hybrids negatively and positively responding to the increase in temperature (termed thermonegative RevExM and thermopositive RevExM, respectively). We further showed reliable imaging of both unexpanded and expanded cells and tissues and demonstrated minimal distortions from the original sample using conventional confocal microscopy. Thus, T-RevExM enables easy adjustment of the size of biological samples and therefore the effective magnification and resolution of the sample, simply by changing the sample temperature.
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Affiliation(s)
- Sunah Kang
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sohyun Park
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hojoon Song
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Dongkil Choi
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Han-Eol Park
- Institute of Molecular Biology and Genetics, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Benjamin H Ahn
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sung-Yon Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Yan Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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Wang Z, Wu Z, Ding P, Sun N, Feng S, Xing C, Zou H, Pei R. Selective capture of circulating tumor cells by antifouling nanostructure substrate made of hydrogel nanoparticles. Colloids Surf B Biointerfaces 2021; 202:111669. [PMID: 33690063 DOI: 10.1016/j.colsurfb.2021.111669] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/25/2021] [Accepted: 03/01/2021] [Indexed: 01/10/2023]
Abstract
The detection and analysis of circulating tumor cells (CTCs) from cancer patients' blood samples present a powerful means to monitor cancer progression. In this work, an antifouling nanostructure substrate made of hydrogel nanoparticles was fabricated for an effective capture of CTCs from the blood samples. The hydrogel nanoparticles were synthesized by zwitterionic sulfobetaine methacrylate (SBMA), methacrylic acid (MAA) and N, N'-methylene bisacrylamide (MBA) through a simple polymerization. SBMA could provide an effective antifouling layer for the substrate to prevent nonspecific cell adhesion, MAA could afford active carboxyl groups for the immobilization of antibody to achieve specific CTC capture, and the nanostructured surface could improve the interaction of the target cells with the antibody modified substrate surface to enhance the capture efficiency of CTCs. Moreover, it was not necessary to further modify the antifouling molecules on the hydrogel nanoparticle substrate's surface, reducing the complexity and difficulty of the substrate preparation. The results showed that about 87 % of target cells (MCF-7 cells) were captured on the antibody modified hydrogel nanoparticle substrate. In contrast, the substrate showed little adhesive capacity for the nonspecific cells (K562 cells), and only 0.15 % of cells were captured. And 98 % of the captured cells kept good cell viability. Finally, 1-32 CTCs/mL were detected from the blood samples of five cancer patients, while no CTC was found in five healthy samples. It is envisaged that the new hydrogel nanostructure substrate is capable of capturing CTCs efficiently and specifically from patient blood samples to be used in cancer treatment.
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Affiliation(s)
- Zhili Wang
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zeen Wu
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China; The Second Affiliated Hospital of Soochow University, Suzhou, 215008, China
| | - Pi Ding
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Na Sun
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Songwei Feng
- The Second Affiliated Hospital of Soochow University, Suzhou, 215008, China
| | - Chungen Xing
- The Second Affiliated Hospital of Soochow University, Suzhou, 215008, China
| | - Hanqing Zou
- The Second Affiliated Hospital of Soochow University, Suzhou, 215008, China.
| | - Renjun Pei
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
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Saha P, Santi M, Emondts M, Roth H, Rahimi K, Großkurth J, Ganguly R, Wessling M, Singha NK, Pich A. Stimuli-Responsive Zwitterionic Core-Shell Microgels for Antifouling Surface Coatings. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58223-58238. [PMID: 33331763 DOI: 10.1021/acsami.0c17427] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fouling on filtration membranes is induced by the nonspecific interactions between the membrane surface and the foulants, and effectively hinders their efficient use in various applications. Here, we established a facile method for the coating of membrane surface with a dual stimuli-responsive antifouling microgel system enriched with a high polyzwitterion content. Different poly(sulfobetaine) (PSB) zwitterionic polymers with defined molecular weights and narrow dispersities were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization and integrated onto poly(N-vinylcaprolactam) (PVCL) microgels via a controlled dosage of a cross-linker, adapting a precipitation polymerization technique to obtain a core-shell microstructure. Increasing the PSB macro-RAFT concentration resulted in a shift of both upper critical solution temperature and lower critical solution temperature toward higher temperatures. Cryogenic transmission electron microscopy at different temperatures suggested the formation of a core-shell morphology with a PVCL-rich core and a PSB-rich shell. On the other hand, the significant variations of different characteristic proton signals and reversible phase transitions of the microgel constituents were confirmed by temperature-dependent 1H NMR studies. Utilizing a quartz crystal microbalance with dissipation monitoring, we have been able to observe and quantitatively describe the antipolyelectrolyte behavior of the zwitterionic microgels. The oscillation frequency of the sensor proved to change reversibly according to the variations of the NaCl concentration, showing, in fact, the effect of the interaction between the salt and the opposite charges present in the microgel deposited on the sensor. Poly(ethersulfone) membranes, chosen as the model surface, when functionalized with zwitterionic microgel coatings, displayed protein-repelling property, stimulated by different transition temperatures, and showed even better performances at increasing NaCl concentration. These kinds of stimuli-responsive zwitterionic microgel can act as temperature-triggered drug delivery systems and as potential coating materials to prevent bioadhesion and biofouling as well.
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Affiliation(s)
- Pabitra Saha
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Aachen 52074, Germany
| | - Marta Santi
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Aachen 52074, Germany
| | - Meike Emondts
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Aachen 52074, Germany
| | - Hannah Roth
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Chemical Process Engineering AVT.CVT, RWTH Aachen University, Aachen 52074, Germany
| | - Khosrow Rahimi
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Aachen 52074, Germany
| | | | - Ritabrata Ganguly
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Matthias Wessling
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Chemical Process Engineering AVT.CVT, RWTH Aachen University, Aachen 52074, Germany
| | - Nikhil K Singha
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Andrij Pich
- DWI-Leibniz-Institute for Interactive Materials, Aachen 52056, Germany
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Aachen 52074, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Maastricht 6229 GT, The Netherlands
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15
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Ebhodaghe SO. Hydrogel – based biopolymers for regenerative medicine applications: a critical review. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1809409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Sun Z, Wu Q, Li L, Cai C, Xue L, Ye C, Gao C. Structure-controlled zwitterionic nanocapsules with thermal-responsiveness. NANOTECHNOLOGY 2020; 31:425710. [PMID: 32610299 DOI: 10.1088/1361-6528/aba1bc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A facile approach is established to prepare zwitterionic nanocapsules (ZN C s) with controlled diameters and core/shell structures based on an inverse reversible addition-fragmentation transfer (RAFT) miniemulsion interfacial polymerization method. The diameters and core volume fractions of ZNCs can be tuned finely from 61 to 220 nm and from 0.22 to 0.61, respectively. Furthermore, the thermal-responsive property of the prepared zwitterionic nanocapsules was systematically studied relating to core/shell ratios and cross-linking degrees. These ZNCs could be particularly useful in constructing polymeric materials with well-defined nanoporous structures for nano-void membranes, drug delivery devices and catalytic carriers.
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Affiliation(s)
- Zhijuan Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province 310014 People's Republic of China
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17
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Saha P, Santi M, Frenken M, Palanisamy AR, Ganguly R, Singha NK, Pich A. Dual-Temperature-Responsive Microgels from a Zwitterionic Functional Graft Copolymer with Superior Protein Repelling Property. ACS Macro Lett 2020; 9:895-901. [PMID: 35648523 DOI: 10.1021/acsmacrolett.0c00304] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, we developed a synthetic strategy to synthesize dual-temperature-responsive low surface fouling zwitterionic microgels. Statistical poly(N-vinylcaprolactam-co-glycidyl methacrylate) copolymers were synthesized by RAFT polymerization and post-modified by thiol-epoxy click reaction with thiol end-group-modified poly(sulfobetaine) macro-RAFT (PSB-SH) to obtain poly(N-vinylcaprolactam-co-glycidyl methacrylate)-graft-poly(sulfobetaine) (PVCL-co-PGMA-g-PSB) graft copolymers. Synthesized graft copolymers were cross-linked by diamine cross-linker in water-in-oil (w/o) inverse mini-emulsion to obtain zwitterionic microgels. Using this approach, we synthesized microgels with unique microstructure, high loading and uniform distribution of poly(sulfobetaine) chains, which exhibits tunable dual-volume phase transition temperatures. The microgels also showed excellent antifouling property reflected in strongly reduced protein absorption on a microgel-coated surface observed in real time by a Quartz Crystal Microbalance with Dissipation (QCM-D) monitoring experiment with continuous flow of protein solution. Therefore, this kind of zwitterionic microgel can be potentially used for temperature-triggered drug delivery and anti-bioadhesion coating material as well.
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Affiliation(s)
- Pabitra Saha
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Marta Santi
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
| | - Martin Frenken
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
| | - Anand Raj Palanisamy
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Ritabrata Ganguly
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Nikhil K. Singha
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Andrij Pich
- DWI − Leibniz-Institute for Interactive Materials, Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Aachen, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Maastricht, The Netherlands
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18
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Erfani A, Seaberg J, Aichele CP, Ramsey JD. Interactions between Biomolecules and Zwitterionic Moieties: A Review. Biomacromolecules 2020; 21:2557-2573. [DOI: 10.1021/acs.biomac.0c00497] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Amir Erfani
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Joshua Seaberg
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Clint Philip Aichele
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
| | - Joshua D. Ramsey
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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19
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Ningrum EO, Sakohara S, Gotoh T, Suprapto, Humaidah N. Correlating properties between sulfobetaine hydrogels and polymers with different carbon spacer lengths. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Audureau N, Coumes F, Guigner JM, Nguyen TPT, Ménager C, Stoffelbach F, Rieger J. Thermoresponsive properties of poly(acrylamide- co-acrylonitrile)-based diblock copolymers synthesized (by PISA) in water. Polym Chem 2020. [DOI: 10.1039/d0py00895h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
UCST-type poly(acrylamide-co-acrylonitrile) diblock copolymers synthesized in water (by PISA) can not only undergo reversible temperature-induced chain dissociation, but also temperature-induced morphological transition.
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Affiliation(s)
- Nicolas Audureau
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- Polymer Chemistry Team
| | - Fanny Coumes
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- Polymer Chemistry Team
| | - Jean-Michel Guigner
- Sorbonne Université
- CNRS
- UMR 7590 Institut de Minéralogie
- de Physique des Matériaux et de Cosmochimie (IMPMC)-IRD-MNHN
- F-75005 Paris
| | - Thi Phuong Thu Nguyen
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- Polymer Chemistry Team
| | - Christine Ménager
- Sorbonne Université
- CNRS
- UMR 8234
- PHENIX Laboratory
- 75252 Paris cedex 05
| | - François Stoffelbach
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- Polymer Chemistry Team
| | - Jutta Rieger
- Sorbonne Université
- CNRS
- UMR 8232
- Institut Parisien de Chimie Moléculaire (IPCM)
- Polymer Chemistry Team
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21
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Chen H, Noirbent G, Zhang Y, Brunel D, Gigmes D, Morlet-Savary F, Graff B, Xiao P, Dumur F, Lalevée J. Novel D–π-A and A–π-D–π-A three-component photoinitiating systems based on carbazole/triphenylamino based chalcones and application in 3D and 4D printing. Polym Chem 2020. [DOI: 10.1039/d0py01197e] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A series of carbazole or triphenylamine based mono-chalcones, displaying either D–π-A or A–π-D–π-A architecture have been designed as photoinitiators for 3D and 4D printing.
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Affiliation(s)
- Hong Chen
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
| | | | - Yijun Zhang
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
| | - Damien Brunel
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Didier Gigmes
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | | | - Bernadette Graff
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
| | - Pu Xiao
- Research School of Chemistry
- Australian National University
- Camberra
- Australia
| | - Frédéric Dumur
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Jacques Lalevée
- Université de Haute-Alsace
- CNRS
- IS2M UMR 7361
- F-68100 Mulhouse
- France
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22
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Sponchioni M, Rodrigues Bassam P, Moscatelli D, Arosio P, Capasso Palmiero U. Biodegradable zwitterionic nanoparticles with tunable UCST-type phase separation under physiological conditions. NANOSCALE 2019; 11:16582-16591. [PMID: 31460534 DOI: 10.1039/c9nr04311j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Thermo-responsive polymeric nanoparticles (NPs) are emerging as a powerful tool in nanomedicine for the fabrication of advanced drug delivery systems. In addition to their size and biodegradation rate, phase separation of NPs upon application of a thermal stimulus provides an additional switch to control the rate of release of active components. Among the materials currently developed for biomedical applications, NPs stabilized by zwitterionic polymers are gaining increasing interest due to their high stability and ability to escape the body immune response. Yet, biodegradable zwitterionic NPs with temperature response under physiological conditions are currently not available. Here, we develop a new class of biodegradable zwitterionic NPs that exhibit UCST phase transition in the biological temperature range (T = 30-45 °C) and in physiological solution (i.e. 0.9% w/w NaCl). We design a strategy that relies on the self-assembly of block copolymers produced via reversible addition-fragmentation chain transfer (RAFT) emulsion polymerization. These copolymers comprise a zwitterionic portion exhibiting an upper critical solution temperature (UCST) and a biodegradable hydrophobic block consisting of oligoesters functionalized with a vinyl group. This modular macromolecular architecture allows us to independently control a variety of NP properties by modifying the individual components of the copolymer. In particular, the zwitterionic block of the copolymers controls the UCST-type phase separation behavior, while the number of the oligoester repeating units governs the size of the NPs and the length of the oligoester dictates the degradation rate. After demonstrating the synthesis of highly controlled degradable NPs, we show the potential of this new class of materials in the context of drug delivery by controlling the release of a drug-mimic molecule upon temperature variations in a broad time range from few minutes to 20 hours.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland. and Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| | - Paola Rodrigues Bassam
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| | - Davide Moscatelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Mancinelli 7, 20131 Milano, Italy
| | - Paolo Arosio
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.
| | - Umberto Capasso Palmiero
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.
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23
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Saha P, Kather M, Banerjee SL, Singha NK, Pich A. Aqueous solution behavior of thermoresponsive polyzwitterionic microgels based on poly(N-vinylcaprolactam) synthesized via RAFT precipitation polymerization. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Tian Q, Han P, Li B, Feng Y. Thermo‐ and CO
2
‐triggered swelling polymer microgels for reducing water‐cut during CO
2
flooding. J Appl Polym Sci 2019. [DOI: 10.1002/app.48305] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qirui Tian
- Polymer Research InstituteState Key Laboratory of Polymer Materials Engineering, Sichuan University Chengdu 610065 People's Republic of China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610065 People's Republic of China
| | - Peihui Han
- EOR Laboratory, Exploration & Development Research InstituteDaqing Oilfield Limited Company, PetroChina Daqing 163712 People's Republic of China
| | - Bo Li
- EOR Laboratory, Exploration & Development Research InstituteDaqing Oilfield Limited Company, PetroChina Daqing 163712 People's Republic of China
| | - Yujun Feng
- Polymer Research InstituteState Key Laboratory of Polymer Materials Engineering, Sichuan University Chengdu 610065 People's Republic of China
- Chengdu Institute of Organic ChemistryChinese Academy of Sciences Chengdu 610065 People's Republic of China
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25
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Means AK, Grunlan MA. Modern Strategies To Achieve Tissue-Mimetic, Mechanically Robust Hydrogels. ACS Macro Lett 2019; 8:705-713. [PMID: 33912358 PMCID: PMC8077972 DOI: 10.1021/acsmacrolett.9b00276] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogels are frequently used biomaterials due to their similarity in hydration and structure to biological tissues. However, their utility is limited by poor mechanical properties, namely, a lack of strength and stiffness that mimic that of tissues, particularly load-bearing tissues. Thus, numerous recent strategies have sought to enhance and tune these properties in hydrogels, including interpenetrating networks (IPNs), macromolecular cross-linking, composites, thermal conditioning, polyampholytes, and dual cross-linking. Individually, these approaches have achieved hydrogels with either high strength (σ f > 10 MPa), high stiffness (E > 1 MPa), or, less commonly, both high strength and stiffness (σ f > 10 MPa and E > 1 MPa). However, only certain unique combinations of these approaches have been able to synergistically achieve retention of a high, tissuelike water content as well as high strength and stiffness. Applying such methods to stimuli-responsive hydrogels has also produced robust, smart biomaterials. Overall, methods to achieve hydrogels that simultaneously mimic the hydration, strength, and stiffness of soft and load-bearing tissues have the potential to be used in a much broader range of biomedical applications.
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Affiliation(s)
- A. Kristen Means
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Melissa A. Grunlan
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843-3120, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3120, United States
- Center for Remote Health Technologies Systems, Texas A&M University, College Station, Texas 77843-3120, United States
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26
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Zhao C, Ma Z, Zhu X. Rational design of thermoresponsive polymers in aqueous solutions: A thermodynamics map. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.01.001] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Tseng WC, Fang TY, Lin YC, Huang SJ, Huang YH. Reversible Self-Assembly Nanovesicle of UCST Response Prepared with Multi-l-arginyl-poly-l-aspartate Conjugated with Polyethylene Glycol. Biomacromolecules 2018; 19:4585-4592. [PMID: 30395453 DOI: 10.1021/acs.biomac.8b01274] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Multi-L-arginyl-poly-L-aspartate (MAPA), also known as cyanophycin, containing a backbone of polyaspartate with arginine and lysine as side chains, was prepared with recombinant Escherichia coli. The insoluble part (iMAPA) was conjugated with polyethylene glycol (PEG) at two different levels, high (iMAPA(PEG)h) and low (iMAPA(PEG)l). Both levels of conjugation exhibited UCST (upper critical solution temperature)-type responses in the pH range of 3-10 at a concentration of 2 mg/mL. The cloud-point temperature of each conjugate also showed a positive correlation with concentration in PBS, falling between 20 to 58 °C at a concentration from 0.1 to 3 mg/mL. Hysteresis was observed to follow approximate paths under the same condition during repeated heating and cooling. Notably, the reversible formation of core-shell vesicles appeared at room temperature in PBS with a size of around 25 to 60 nm, as measured by DLS and observed under TEM. The reversibility was further employed to encapsulate doxorubicin (Dox) at different weight ratios of Dox to iMAPA(PEG)h. An encapsulation efficiency could reach as high as 70% with an equivalent loading capacity of 1.5 mg Dox/mg iMAPA(PEG)h. The Dox-loaded vesicles stayed stable at 4 °C for up to 4 weeks, with a minimal leakage below 2% and a slightly dilated morphology. Temperature-triggered release of Dox from the vesicles could be achieved by a step change of 5 °C successively from 37 to 62 °C in an effort to induce an initial 10% release at 37 °C gradually to complete release at 62 °C.
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Affiliation(s)
- Wen-Chi Tseng
- Department of Chemical Engineering , National Taiwan University of Science and Technology , No.43, Sec. 4, Keelung Rd. , Taipei 106 , Taiwan
| | - Tsuei-Yun Fang
- Department of Food Science , National Taiwan Ocean University , No. 2, Beining Rd. , Keelung 106 , Taiwan
| | - Yu-Chih Lin
- Department of Chemical Engineering , National Taiwan University of Science and Technology , No.43, Sec. 4, Keelung Rd. , Taipei 106 , Taiwan
| | - Shing-Jong Huang
- Instrumentation Center , Taiwan University , University, No. 1, Sec. 4, Roosevelt Rd. , Taipei 106 , Taiwan
| | - Yi-Hao Huang
- Department of Chemical Engineering , National Taiwan University of Science and Technology , No.43, Sec. 4, Keelung Rd. , Taipei 106 , Taiwan
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28
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Zhang H, Gao X, Chen K, Li H, Peng L. Thermo-sensitive and swelling properties of cellouronic acid sodium/poly (acrylamide-co-diallyldimethylammonium chloride) semi-IPN. Carbohydr Polym 2018; 181:450-459. [DOI: 10.1016/j.carbpol.2017.10.093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 09/26/2017] [Accepted: 10/28/2017] [Indexed: 12/16/2022]
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29
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Zhang Q, Gou S, Zhao L, Fei Y, Zhou L, Li S, Wu Y, Guo Q. Solution behavior of water-soluble poly(acrylamide-co
-sulfobetaine) with intensive antisalt performance as an enhanced oil-recovery chemical. J Appl Polym Sci 2018. [DOI: 10.1002/app.46235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Qin Zhang
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Shaohua Gou
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Lei Zhao
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Yumei Fei
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Lihua Zhou
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Shiwei Li
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Yuanpeng Wu
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Qipeng Guo
- Polymers Research Group, Institute for Frontier Materials; Deakin University, Locked Bag 2000; Geelong Victoria 3220 Australia
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30
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Rajan R, Matsumura K. Tunable Dual-Thermoresponsive Core-Shell Nanogels Exhibiting UCST and LCST Behavior. Macromol Rapid Commun 2017; 38. [PMID: 28960587 DOI: 10.1002/marc.201700478] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/18/2017] [Indexed: 11/10/2022]
Abstract
Thermoresponsive polymers change their physical properties as the temperature is changed and have found extensive use in a number of fields, especially in tissue engineering and in the development of drug delivery systems. The synthesis of a novel core-shell nanogel composed of N-isopropylacrylamide and sulfobetaine by reversible addition fragmentation chain transfer polymerization is reported. The core-shell architecture of the nanogels is confirmed using energy dispersive X-ray spectroscopy in scanning transmission electron microscopy. These nanogels exhibit dual thermoresponsive behavior, i.e., the core of the nanogel exhibits lower critical solution temperature, while the shell displays upper critical solution temperature behavior. Transition temperatures can be easily tuned by changing the molecular weight of the constituent polymer. These nanogels can be efficiently used in temperature-triggered delivery of therapeutic proteins and drugs.
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Affiliation(s)
- Robin Rajan
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Kazuaki Matsumura
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
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31
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32
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Sun H, Chen J, Han X, Liu H. Multi-responsive hydrogels with UCST- and LCST-induced shrinking and controlled release behaviors of rhodamine B. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 82:284-290. [PMID: 29025659 DOI: 10.1016/j.msec.2017.08.067] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/13/2017] [Accepted: 08/16/2017] [Indexed: 11/18/2022]
Abstract
By using a disulfide-functionalized crosslinker, a pH- and thermo-responsive 2-(dimethylamino) ethyl methacrylate (DMAEMA) monomer and a zwitterionic sulfobetaine methacrylate (SBMA) monomer were conjugated to fabricate a multi-responsive P(DMAEMA-SS-SBMA) copolymeric hydrogel. Apparent UCST and LCST volume transitions were observed in the P(DMAEMA-SS-SBMA) hydrogels with equivalent weight fractions of monomers. Different pore size and response sensitivity of shrunken structures below UCST and above LCST were visualized by SEM images. The hydrogel exhibited a highly swollen state with a swelling ratio of 17.8 and a pore size of 106μm at 45°C, they deswelled unequally at 5°C with a compact surface with pore size of 30μm and a loose bulk with pore size of 83μm, while they deswelled uniformly at 65°C with dense shrunken structure with small pore size of 12μm. The dual-thermoresponsive hydrogel was promising in controlled drug release. The initial drug release was predominantly controlled by diffusion, and the long-term release was influenced by the swelling ratio. Below UCST, the relatively hydrophilic shrunken structure and slow diffusion had a synergistic effect on the sustained release. Above LCST, the fast diffusion and the rapid "off" effect of hydrophobic skin layer resulted in a burst release. Additionally, pH-tunable swelling and redox-sensitive degradation were also observed.
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Affiliation(s)
- Hui Sun
- Key Laboratory for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jing Chen
- Key Laboratory for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xia Han
- Key Laboratory for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Honglai Liu
- Key Laboratory for Advanced Materials and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China
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33
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Wang JT, Wang L, Ji X, Liu L, Zhao H. Synthesis of Zwitterionic Diblock Copolymers with Cleavable Biotin Groups at the Junction Points and Fabrication of Bioconjugates by Biotin–Streptavidin Coupling. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02665] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jin-Tao Wang
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Lin Wang
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Xiaotian Ji
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Li Liu
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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34
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Liow SS, Dou Q, Kai D, Karim AA, Zhang K, Xu F, Loh XJ. Thermogels: In Situ Gelling Biomaterial. ACS Biomater Sci Eng 2016; 2:295-316. [DOI: 10.1021/acsbiomaterials.5b00515] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sing Shy Liow
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Qingqing Dou
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Anis Abdul Karim
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | - Kangyi Zhang
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
| | | | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634
- Department
of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
- Singapore Eye Research Institute, 11 Third Hospital Avenue, Singapore 168751, Singapore
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35
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Zhu Y, Batchelor R, Lowe AB, Roth PJ. Design of Thermoresponsive Polymers with Aqueous LCST, UCST, or Both: Modification of a Reactive Poly(2-vinyl-4,4-dimethylazlactone) Scaffold. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02056] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yicheng Zhu
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Rhiannon Batchelor
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Andrew B. Lowe
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Nanochemistry
Research Institute (NRI) and Department of Chemistry, Curtin University, Bentley, Perth WA6102, Australia
| | - Peter J. Roth
- Centre
for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Nanochemistry
Research Institute (NRI) and Department of Chemistry, Curtin University, Bentley, Perth WA6102, Australia
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36
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Haraguchi K, Ning J, Li G. Changes in the Properties and Self-Healing Behaviors of Zwitterionic Nanocomposite Gels Across Their UCST Transition. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/masy.201500041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kazutoshi Haraguchi
- Applied Molecular Chemistry, College of Industrial Chemistry; Nihon University; Narashino Chiba 275-8575 Japan
| | - Jinyan Ning
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science Engineering; Donghua University; Shanghai 201620 China
- School of Materials Science and Engineering; Shanghai University; Shanghai 200444 China
| | - Guang Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science Engineering; Donghua University; Shanghai 201620 China
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37
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Taktak F, Bütün V. Novel zwitterionic ABA-type triblock copolymer for pH- and salt-controlled release of risperidone. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2015.1099100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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39
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Du X, Jiang G, Li L, Yang W, Chen H, Liu Y, Huang Q. Preparation of glucose-sensitive and fluorescence micelles via a combination of photoinitiated polymerization and chemoenzymatic transesterification for the controlled release of insulin. J Appl Polym Sci 2015. [DOI: 10.1002/app.43026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xiangxiang Du
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Guohua Jiang
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang); Hangzhou 310018 People's Republic of China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; Hangzhou 310018 People's Republic of China
| | - Lei Li
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Wentong Yang
- Qixin Honours School, Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Hua Chen
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Yongkun Liu
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
| | - Qin Huang
- Department of Materials Engineering; Zhejiang Sci-Tech University; Hangzhou 310018 People's Republic of China
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40
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Haraguchi K, Ning J, Li G. Swelling/deswelling behavior of zwitterionic nanocomposite gels consisting of sulfobetaine polymer–clay networks. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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41
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Jiménez ZA, Yoshida R. Temperature Driven Self-Assembly of a Zwitterionic Block Copolymer That Exhibits Triple Thermoresponsivity and pH Sensitivity. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00769] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zulma A. Jiménez
- Department of Materials Engineering,
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryo Yoshida
- Department of Materials Engineering,
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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42
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Effects of specific anions on the relationship between the ion-adsorption properties of sulfobetaine gel and its swelling behavior. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.01.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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43
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Chang J, Tao Y, Wang B, Guo BH, Xu H, Jiang YR, Huang Y. An in situ-forming zwitterionic hydrogel as vitreous substitute. J Mater Chem B 2015; 3:1097-1105. [DOI: 10.1039/c4tb01775g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An in situ-forming zwitterionic gel as vitreous substitute.
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Affiliation(s)
- Jing Chang
- Key Laboratory of Advanced Materials (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Yong Tao
- Department of Ophthalmology
- People's Hospital
- Peking University
- Key Laboratory of Vision Loss and Restoration
- Ministry of Education
| | - Bin Wang
- Department of Ophthalmology
- People's Hospital
- Peking University
- Key Laboratory of Vision Loss and Restoration
- Ministry of Education
| | - Bao-hua Guo
- Key Laboratory of Advanced Materials (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Hong Xu
- College of Food Science and Light Industry
- Nanjing Tech University
- Nanjing 211816
- China
| | - Yan-rong Jiang
- Department of Ophthalmology
- People's Hospital
- Peking University
- Key Laboratory of Vision Loss and Restoration
- Ministry of Education
| | - Yanbin Huang
- Key Laboratory of Advanced Materials (MOE)
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
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44
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Liu F, Jiang S, Ionov L, Agarwal S. Thermophilic films and fibers from photo cross-linkable UCST-type polymers. Polym Chem 2015. [DOI: 10.1039/c5py00109a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photo cross-linkable thermoresponsive polymers of UCST-type and the corresponding thermophilic films and fibers are presented for use in biofabrication and microactuators.
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Affiliation(s)
- Fangyao Liu
- University of Bayreuth
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces
- D-95440 Bayreuth
- Germany
| | - Shaohua Jiang
- University of Bayreuth
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces
- D-95440 Bayreuth
- Germany
| | - Leonid Ionov
- Leibniz Institute of Polymer Research Dresden
- D-01069 Dresden
- Germany
| | - Seema Agarwal
- University of Bayreuth
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces
- D-95440 Bayreuth
- Germany
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45
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Liu H, Xiong C, Tao Z, Fan Y, Tang X, Yang H. Zwitterionic copolymer-based and hydrogen bonding-strengthened self-healing hydrogel. RSC Adv 2015. [DOI: 10.1039/c4ra15003a] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We report here a zwitterionic copolymer based non-covalently cross-linked hydrogel with intrinsic self-healing nature for potential use in enhanced oil recovery.
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Affiliation(s)
- He Liu
- Research Institute of Science and Technology
- China National Petroleum Corporation
- Beijing
- P. R. China
- CAS Key Laboratory of Soft Matter Chemistry
| | - Chunming Xiong
- Research Institute of Science and Technology
- China National Petroleum Corporation
- Beijing
- P. R. China
| | - Zhen Tao
- CAS Key Laboratory of Soft Matter Chemistry
- School of Chemistry and Materials Science
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Yujiao Fan
- CAS Key Laboratory of Soft Matter Chemistry
- School of Chemistry and Materials Science
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Xiaofen Tang
- Research Institute of Science and Technology
- China National Petroleum Corporation
- Beijing
- P. R. China
| | - Haiyang Yang
- CAS Key Laboratory of Soft Matter Chemistry
- School of Chemistry and Materials Science
- University of Science and Technology of China
- Hefei
- P. R. China
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46
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A novel ternary copolymerized polyzwitterionic of poly (AM/DMAM/MAEDAPS): synthesis and solution properties. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0620-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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47
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Hasnat Kabir M, Hazama T, Watanabe Y, Gong J, Murase K, Sunada T, Furukawa H. Smart hydrogel with shape memory for biomedical applications. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.09.035] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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48
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Ningrum EO, Murakami Y, Ohfuka Y, Gotoh T, Sakohara S. Investigation of ion adsorption properties of sulfobetaine gel and relationship with its swelling behavior. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.08.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Hildebrand V, Laschewsky A, Zehm D. On the hydrophilicity of polyzwitterion poly (N,N-dimethyl-N-(3-(methacrylamido)propyl)ammoniopropane sulfonate) in water, deuterated water, and aqueous salt solutions. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1602-18. [PMID: 25058808 DOI: 10.1080/09205063.2014.939918] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A series of zwitterionic model polymers with defined molar masses up to 150,000 Da and defined end groups are prepared from sulfobetaine monomer N,N-dimethyl-N-(3-(methacrylamido)propyl)ammoniopropanesulfonate (SPP). Polymers are synthesized by reversible addition-fragmentation chain transfer polymerization (RAFT) using a functional chain transfer agent labeled with a fluorescent probe. Their upper critical solution temperature-type coil-to-globule phase transition in water, deuterated water, and various salt solutions is studied by turbidimetry. Cloud points increase with polyzwitterion concentration and molar mass, being considerably higher in D2O than in H2O. Moreover, cloud points are strongly affected by the amount and nature of added salts. Typically, they increase with increasing salt concentration up to a maximum value, whereas further addition of salt lowers the cloud points again, mostly down to below freezing point. The different salting-in and salting-out effects of the studied anions can be correlated with the Hofmeister series. In physiological sodium chloride solution and in phosphate buffered saline (PBS), the cloud point is suppressed even for high molar mass samples. Accordingly, SPP-polymers behave strongly hydrophilic under most conditions encountered in biomedical applications. However, the direct transfer of results from model studies in D2O, using, e.g. (1)H NMR or neutron scattering techniques, to 'normal' systems in H2O is not obvious.
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Affiliation(s)
- Viet Hildebrand
- a Institut für Chemie, Universität Potsdam , Karl-Liebknechtstr. 24-25, 14476 Potsdam-Golm , Germany
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50
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Liu F, Seuring J, Agarwal S. A Non-ionic Thermophilic Hydrogel with Positive Thermosensitivity in Water and Electrolyte Solution. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400155] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fangyao Liu
- University of Bayreuth; Faculty of Biology, Chemistry and Earth Sciences; Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces; Universitätstrasse 30 D-95440 Bayreuth Germany
| | - Jan Seuring
- Böcklerstrasse 8 D-38102 Braunschweig Germany
| | - Seema Agarwal
- University of Bayreuth; Faculty of Biology, Chemistry and Earth Sciences; Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces; Universitätstrasse 30 D-95440 Bayreuth Germany
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