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Yao Y, Shi X, Zhao Z, Zhang A, Li W. Dendronization of chitosan to afford unprecedent thermoresponsiveness and tunable microconfinement. J Mater Chem B 2023; 11:11024-11034. [PMID: 37975703 DOI: 10.1039/d3tb01803b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Convenient chemical modification of biomacromolecules to create novel biocompatible functional materials satisfies the current requirements of sustainable chemistry. Dendronization of chitosan with dendritic oligoethylene glycols (OEGs) paves a strategy for the preparation of functional dendronized chitosans (DCSs) with unprecedent thermoresponsive behavior, which inherit biological features from polysaccharides and the topological features from dendritic OEGs. In addition, densely packed dendritic OEG chains around the backbone provide efficient cooperative interactions and form an intriguing confined microenvironment based on the degradable biopolymers. In this perspective, we describe the principle for the preparation of the thermoresponsive DCSs, and focus on the molecular envelop effect from the hydrophobic microconfinement to the encapsulated guest molecules or moieties. Particular attention is put on their capacity to regulate behavior and the functions of the encapsulated guests through thermally-mediated dehydration and collapse of the densely packed dendritic OEGs. We believe that the methodology described here may provide prospects for the fabrication of functional materials from biomacromolecules, especially when used as environmentally friendly nanomaterials or in accurate diagnosis and therapy.
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Affiliation(s)
- Yi Yao
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Xiaoxin Shi
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Zihong Zhao
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Afang Zhang
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Wen Li
- International Joint Laboratory of Biomimetic and Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
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Fan X, Liu X, Liu F, Gu H. Thermo/β-cyclodextrin-responsive ferrocenyl hydrogels constructed by ROMP reaction. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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3
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Yao Y, Cao S, Yang Q, Zhang A, Li W. Thermo-Gelling Dendronized Chitosans for Modulating Protein Activity. ACS APPLIED BIO MATERIALS 2022; 5:5377-5385. [PMID: 36343279 DOI: 10.1021/acsabm.2c00755] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Regulation of protein activity is important in their applications for biomedicine and therapeutics. Here, an approach for the regulation of protein bioactivity through molecular confinement provided by oligoethylene glycol (OEG)-based dendronized chitosan (DCS) hydrogels is reported. Structural effects on their thermoresponsiveness are investigated. The highly transparent hydrogels are formed from thermoresponsive DCSs through their thermal dehydration and exhibit an intriguing reversible sol-gel transition property when triggered at physiological temperatures. The thermo-gelling behavior and mechanical strength of these hydrogels are investigated, and possible effects from hydrophobicity of the OEG dendrons, grafting rates of the dendrons on the chitosan main chain, and solid content of polymers are examined. These DCS hydrogels are found to have lamellar morphologies and can provide characteristic hydrophobicity microenvironments formed through the crowded OEG dendrons, which show a higher level of confinement to guest proteins. This allows the DCS hydrogels remarkable activity protection capability to proteins. Furthermore, these DCS hydrogels inherit the degradability from chitosan, allowing protein release from these hydrogels through the controllable ways without impairing their activities.
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Affiliation(s)
- Yi Yao
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
| | - Shijie Cao
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
| | - Qingcen Yang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
| | - Afang Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
| | - Wen Li
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shanghai200444, China
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Xu G, Zhang J, Qi M, Zhang X, Li W, Zhang A. Thermoresponsive dendritic oligoethylene glycols. Phys Chem Chem Phys 2022; 24:11848-11855. [PMID: 35510425 DOI: 10.1039/d2cp01286c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monodispersed molecules of low molar masses showing thermoresponsiveness are appealing both for mechanism investigation of the thermally-modulated dehydration and aggregation on molecular levels and for designing functional intelligent materials. In the present report, thermoresponsive properties of a homologous series of monodispersed dendritic macromolecules carrying three-, four- or six-fold dendritic oligoethylene glycol (OEG) segments were investigated. These dendritic macromolecules carry either methoxyl or ethoxyl terminals, and have different cores (alcohol, methyl ester or methacryloyl) to exhibit different overall hydrophilicity. They show characteristic thermoresponsive properties with sharp phase transitions when suitable structural units are combined. Three structural factors determine their phase transition temperatures, including the cores, branching density and peripheral terminals. Thermally-induced collapse and aggregation are monitored with temperature-varied NMR spectroscopy at the microscale level and optical microscopy at the macroscale level. At elevated temperature, these dendritic macromolecules undergo fast exchange between the dehydrated and the hydrated states. These dendritic macromolecules afford structure-dependent confinement to guest dyes through their multi-valent interactions.
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Affiliation(s)
- Gang Xu
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Jiaxing Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Mengyuan Qi
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Xiacong Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Wen Li
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
| | - Afang Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Nanchen Street 333, Shanghai 200444, China.
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Xu G, Zhang J, Jia R, Li W, Zhang A. Topological Effects of Dendronized Polymers on Their Thermoresponsiveness and Microconfinement. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gang Xu
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Jiaxing Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Ruitong Jia
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Wen Li
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
| | - Afang Zhang
- International Joint Laboratory of Biomimetic & Smart Polymers, School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 20444, China
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Wu D, Liu K, Ren L, Zhu L, Yan J, Li W, Zhang X, Zhang A. [2 + 2] Photocycloaddition-Mediated Intra- and Intermolecular Cross-Linking of Thermoresponsive Dendronized Polymethacrylates. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Di Wu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Kun Liu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Liangxuan Ren
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Li Zhu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Jiatao Yan
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Wen Li
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Xiacong Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Afang Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China
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Zhang X, Liu K, Liu J, Ding Y, Li W, Zhang A. Thermoresponsive cryogels from dendronized interpenetrating polymer network showing dual-shape memory. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Xu G, Liu K, Xu B, Yao Y, Li W, Yan J, Zhang A. Confined Microenvironments from Thermoresponsive Dendronized Polymers. Macromol Rapid Commun 2020; 41:e2000325. [PMID: 32639094 DOI: 10.1002/marc.202000325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/23/2020] [Indexed: 11/07/2022]
Abstract
Confined microenvironments in biomacromolecules arising from molecular crowding account for their well-defined biofunctions and bioactivities. To mimick this, synthetic polymers to form confined structures or microenvironments are of key scientific value, which have received significant attention recently. To create synthetic confined microenvironments, molecular crowding effects and topological cooperative effects have been applied successfully, and the key is balance between self-association of structural units and self-repulsion from crowding-induced steric hindrance. In this article, formation of confined microenvironments from stimuli-responsive dendronized polymers carrying densely dendritic oligoethylene glycols (OEGs) moieties in their pendants is presented. These wormlike thick macromolecules exhibit characteristic thermoresponsive properties, which can provide constrained microenvironments to encapsulate effectively guest molecules including dyes, proteins, or nucleic acids to prevent their protonation or biodegradation. This efficient shielding effect can also mediate chemical reactions in aqueous phase, and even enhance chirality transferring efficiency. All of these can be switched off simply through the thermally-induced dehydration and collapse of OEG dendrons due to the amphiphilicity of OEG chains. Furthermore, the switchable encapsulation and release of guests can be greatly enhanced when these dendronized polymers are used as major constituents for fabricating bulk hydrogels or nanogels, which provide a higher-level confinement.
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Affiliation(s)
- Gang Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Kun Liu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Biyi Xu
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yi Yao
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Wen Li
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Jiatao Yan
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Afang Zhang
- International Joint Laboratory of Smart and Biomimetic Polymers, School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
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Yao Y, Wu JH, Cao SJ, Xu BY, Yan JT, Wu D, Li W, Zhang A. Thermoresponsive Nanogels from Dendronized Copolymers for Complexation, Protection and Release of Nucleic Acids. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2452-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu X, Liu F, Liu W, Gu H. ROMP and MCP as Versatile and Forceful Tools to Fabricate Dendronized Polymers for Functional Applications. POLYM REV 2020. [DOI: 10.1080/15583724.2020.1723022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Fangfei Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Wentao Liu
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
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Wu D, Wu J, Tao P, Yao Y, Wang J, Liu D, Chen F, Xu B, Li W, Zhang A. Thermoresponsive cationic dendronized copolymers and their corresponding nanogels as smart gene carriers. Polym Chem 2020. [DOI: 10.1039/d0py00631a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Thermoresponsive dendronized copolymer nanogels show unique condensation, protection and controlled release of siRNA due to dendritic topology and spherical morphology.
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Affiliation(s)
- Di Wu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Jianhui Wu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Pei Tao
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Yi Yao
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Jing Wang
- School of Life Science
- Shanghai University
- Shanghai 200444
- China
| | - Dongfei Liu
- State Key Laboratory of Natural Medicines
- Department of Pharmaceutics
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Fuxue Chen
- School of Life Science
- Shanghai University
- Shanghai 200444
- China
| | - Biyi Xu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Wen Li
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Afang Zhang
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- China
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Degradable Protein-loaded Polymer Capsules Fabricated by Thiol-disulfide Cross-linking Reaction at Liquid-liquid Interface. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2253-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhao S, Wang D, Zhu S, Liu X, Zhang H. 3D cryogel composites as adsorbent for isolation of protein and small molecules. Talanta 2018; 191:229-234. [PMID: 30262055 DOI: 10.1016/j.talanta.2018.08.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/19/2018] [Accepted: 08/27/2018] [Indexed: 11/25/2022]
Abstract
A green and promising sample pretreatment method was successfully established, which efficiently isolated proteins and small molecules in human serum. This method was achieved based on the multifunctional polymer, cryogel, as a solid phase extraction (SPE) monolith easily equipped in a syringe. The cryogel (pDC/GO-DE) was composed of diallyldimethyl ammonium chloride (DC) and 2-hydroxyethyl methacrylate (HE), which was further modified with graphene oxide (GO) and N-diethylethanamine hydrobromide (DE). Various proteins, including bovine serum albumin (BSA), lysozyme (Lys), γ-globulins, immunoglobulin G (IgG), transferrin, small molecules (ribavirin, adenosine, ofloxacin, estriol, rutin, amoxicillin, ibuprofen, 1-methyl-3-phenyl-propylamine, and benzylamine) and their mixtures were successively studied as model analytes to evaluate the new material and demonstrate the isolation mechanism, which was mainly dependent on mixed-mode ion-exchange and the hybrid hydrophobicity-hydrophilicity property of pDC/GO-DE cryogel. Moreover, the three-dimensional macroporous structure contributed to the underlying size-selective isolation. When 10 times diluted human serum was used as the sample, more than 95% of proteins were adsorbed within 10 min under physiological conditions, and the interference matrix in serum was also efficiently reduced. After recycling three times, the extraction ratio of proteins in human serum was still higher than 90%. When four small molecules (camptothecin, ribavirin, 1-methyl-3-phenylpropylamine and ofloxacin) were added to blank human serum, their recoveries were within 65.6-81.8%, and were comparable to those obtained by protein precipitation method (63.7-83.2%).
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Affiliation(s)
- Shuling Zhao
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Dongdong Wang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Shuqiang Zhu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xiaoyan Liu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Haixia Zhang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
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