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Yang Z, Chen X, Xu Z, Ji N, Xiong L, Sun Q. Anti-freezing starch hydrogels with superior mechanical properties and water retention ability for 3D printing. Int J Biol Macromol 2021; 190:382-389. [PMID: 34499952 DOI: 10.1016/j.ijbiomac.2021.08.235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/27/2022]
Abstract
As a novel material that can be used at subzero temperatures, anti-freezing hydrogels have been attracting extensive attention. Inspired by the freeze-tolerance phenomenon in seawater, which is achieved by mixing salts into water, an ionic compound (CaCl2) was used to gelatinize starch to form anti-freezing hydrogels. Native potato starch (NPS) anti-freezing hydrogels were formed at -10 °C, -18 °C, -30 °C, and - 50 °C with 6-9 kPa tensile strength and 100-230% elongation at break. The compressive stress of anti-freezing hydrogels at different environmental temperatures increased from 18.586 kPa to 36.551 kPa with the glass transform temperature of starch hydrogels dropped to -50 °C. The anti-freezing hydrogels showed excellent water retention ability, which could maintain a water content of 55% after 7 days at ambient temperature. The prototyping of anti-freezing starch hydrogels broadens the applications of starch in food, adhesives, medical materials, and intelligent materials.
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Affiliation(s)
- Zhen Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Xiaoyu Chen
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Zihan Xu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Na Ji
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Liu Xiong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
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Zhang Z, Hao J. Bioinspired organohydrogels with heterostructures: Fabrications, performances, and applications. Adv Colloid Interface Sci 2021; 292:102408. [PMID: 33932827 DOI: 10.1016/j.cis.2021.102408] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 02/08/2023]
Abstract
Since emerging in 1960, the artificial hydrogels have garnered enormous attentions in scientific community due to their high level of similarities to biological soft tissues in both structures and properties. With the proceeding of research, the concern of hydrogels is gradually shifted from fundamental investigation to abundant functionalization. In contrast to the natural soft tissues, the current artificial hydrogels still possess relatively simple structures and unsatisfactory environmental adaptability, extremely limiting their practical applications in complex environments. Enlightened by the prominent adaptability of biological organisms, the binary cooperative complementary principle is utilized to develop bioinspired organohydrogels by combining two components with opposite but cooperative physiochemical features. The present review provides the advanced progresses of bioinspired organohydrogels with sophisticated heterogeneous networks and desirably environmental adaptabilities. We clearly summarize the synthesizing strategies in regard to both corresponding mechanisms and typical examples, including macroscopic organohydrogels, organohydrogels with binary solvent, organohydrogels with heteronetworks, and emulsion-based organohydrogels. Meanwhile, the intriguing features of the reported organohydrogels, such as temperature resistance, switchable mechanics, adaptive wettability, and opposite components compatibility, are also clearly highlighted with a short overview of their promising applications. Ultimately, the current challenges and perspectives on the future development of bioinspired organohydrogels are also discussed.
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Chen J, Qiu T, Guo L, He L, Li X. Topology Reliable LCST-Type Behavior of ABA Triblock Polymer and Influence on Water Condensation and Crystallization. Macromol Rapid Commun 2021; 42:e2100024. [PMID: 33768621 DOI: 10.1002/marc.202100024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/15/2021] [Indexed: 01/26/2023]
Abstract
As a kind of smart material, thermoresponsive hydrogels are widely investigated and applied in many fields. Due to the limitation of the freezing temperature of the water, it is a challenge to further broaden their sol-gel transition temperature (Tgel ) range, especially below 0 °C. Herein, the lower critical solution temperature type of amphiphilic ABA triblock copolymers, synthesized via two-step reversible addition-fragmentation chain transfer (RAFT) polymerization is demonstrated. The hydrophilic A-block and the hydrophobic B-block are composed of poly(N,N-dimethylacrylamide) (PDMAA) and poly(diacetone acrylamide) (PDAAM), respectively. The degree of polymerization (DP) of both A-block and B-block shows a significant influence on the Tgel of triblock copolymer dispersion. By changing the length of these two blocks or physically blending these copolymers dispersions, the Tgel can be well adjusted in a temperature range from 45 to -10 °C. Moreover, When the Tgel is higher than 4 °C, the triblock copolymer coatings show a good anti-fogging property. And when the Tgel is around or lower than the freezing temperature of the water, aqueous dispersions of the triblock copolymer have an ice recrystallization inhibition activity, resulting in the decrease of average maximum grain size (MLGS) of ice crystal.
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Affiliation(s)
- Jing Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Teng Qiu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Longhai Guo
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Lifan He
- Beijing Engineering Research Center of Synthesis and Application of Waterborne Polymer, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoyu Li
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Giannuzzi R, Prontera T, Tobaldi DM, Pugliese M, De Marco L, Carallo S, Gigli G, Pullar RC, Maiorano V. Pseudocapacitive behaviour in sol-gel derived electrochromic titania nanostructures. NANOTECHNOLOGY 2021; 32:045703. [PMID: 32998125 DOI: 10.1088/1361-6528/abbceb] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanostructured thin films are widely investigated for application in multifunctional devices thanks to their peculiar optoelectronic properties. In this work anatase TiO2 nanoparticles (average diameter 10 nm) synthesised by a green aqueous sol-gel route are exploited to fabricate optically active electrodes for pseudocapacitive-electrochromic devices. In our approach, highly transparent and homogeneous thin films having a good electronic coupling between nanoparticles are prepared. These electrodes present a spongy-like nanostructure in which the dimension of native nanoparticles is preserved, resulting in a huge surface area. Cyclic voltammetry studies reveal that there are significant contributions to the total stored charge from both intercalation capacitance and pseudocapacitance, with a remarkable 50% of the total charge deriving from this second effect. Fast and reversible colouration occurs, with an optical modulation of ∼60% in the range of 315-1660 nm, and a colouration efficiency of 25.1 cm2 C-1 at 550 nm. This combination of pseudocapacitance and electrochromism makes the sol-gel derived titania thin films promising candidates for multifunctional 'smart windows'.
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Affiliation(s)
- Roberto Giannuzzi
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Tania Prontera
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - David M Tobaldi
- Department of Materials and Ceramics Engineering and CICECO-Aveiro Institute of Materials-University of Aveiro, 3810-193 Campus Universitário de Santiago, Portugal
| | - Marco Pugliese
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Luisa De Marco
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Sonia Carallo
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
| | - Giuseppe Gigli
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
- Dipartimento di Matematica e Fisica E. de Giorgi, Università Del Salento, Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Robert C Pullar
- Department of Materials and Ceramics Engineering and CICECO-Aveiro Institute of Materials-University of Aveiro, 3810-193 Campus Universitário de Santiago, Portugal
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Scientific Campus, Via Torino 155, 30172 Mestre (VE), Italy
| | - Vincenzo Maiorano
- CNR NANOTEC-Institute of Nanotechnology, c/o campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
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Xu H, Zhou C, Jian C, Yang S, Liu M, Huang X, Gao W, Wu H. Salt/current-triggered stabilization of β-cyclodextrins encapsulated host-guest low-molecular-weight gels. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhao Y, Chen Z, Mo F, Wang D, Guo Y, Liu Z, Li X, Li Q, Liang G, Zhi C. Aqueous Rechargeable Metal-Ion Batteries Working at Subzero Temperatures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 8:2002590. [PMID: 33437581 PMCID: PMC7788594 DOI: 10.1002/advs.202002590] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/07/2020] [Indexed: 05/30/2023]
Abstract
Aqueous rechargeable metal-ion batteries (ARMBs) represent one of the current research frontiers due to their low cost, high safety, and other unique features. Evolving to a practically useful device, the ARMBs must be adaptable to various ambient, especially the cold weather. While much effort has been made on organic electrolyte batteries operating at low temperatures, the study on low-temperature ARMBs is still in its infancy. The challenge mainly comes from water freezing at subzero temperatures, resulting in dramatically retarded kinetics. Here, the freezing behavior of water and its effects on subzero performances of ARMBs are first discussed. Then all strategies used to enhance subzero temperature performances of ARMBs by associating them with battery kinetics are summarized. The subzero temperature performances of ARMBs and organic electrolyte batteries are compared. The final section presents potential directions for further improvements and future perspectives of this thriving field.
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Affiliation(s)
- Yuwei Zhao
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Ze Chen
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Funian Mo
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Donghong Wang
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Ying Guo
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Zhuoxin Liu
- College of Materials Science and EngineeringShenzhen UniversityShenzhen518060China
| | - Xinliang Li
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Qing Li
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Guojin Liang
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
| | - Chunyi Zhi
- Department of Materials Science and EngineeringCity University of Hong KongHong Kong999077China
- Centre for Functional PhotonicsCity University of Hong KongKowloon999077Hong Kong
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Jiang Y, Lu X. Environment adaptive hydrogels for extreme conditions: a review. BIOSURFACE AND BIOTRIBOLOGY 2019. [DOI: 10.1049/bsbt.2019.0030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Yanan Jiang
- Key Lab of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong University610031ChengduSichuanPeople's Republic of China
| | - Xiong Lu
- Key Lab of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong University610031ChengduSichuanPeople's Republic of China
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Zhou D, Chen F, Handschuh‐Wang S, Gan T, Zhou X, Zhou X. Biomimetic Extreme‐Temperature‐ and Environment‐Adaptable Hydrogels. Chemphyschem 2019; 20:2139-2154. [DOI: 10.1002/cphc.201900545] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/10/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Dan Zhou
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
| | - Fan Chen
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
| | - Stephan Handschuh‐Wang
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
| | - Tiansheng Gan
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
| | - Xiaohu Zhou
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental EngineeringShenzhen University, Shenzhen 518060 P. R. China
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