中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Smart polymer-based calcium-ion self-regulated nanochannels by mimicking the biological Ca2+-induced Ca2+ release process

文献类型:期刊论文

作者Li, Yunlong1,2; Xiong, Yuting2; Wang, Dongdong2; Li, Xiuling2; Chen, Zhixiang1,2; Wang, Cunli2; Qin, Haijuan3; Liu, Jinxuan4; Chang, Baisong1; Qing, Guangyan2
刊名NPG ASIA MATERIALS
出版日期2019-08-30
卷号11页码:13
ISSN号1884-4049
DOI10.1038/s41427-019-0148-4
通讯作者Qing, Guangyan(qinggy@dicp.ac.cn)
英文摘要In nature, ion channels play key roles in controlling ion transport between cells and their surroundings. Calcium ion (Ca2+)-induced Ca2+ release (CICR), a critical control mechanism for Ca2+ channels, occurs due to a Ca2+ concentration gradient working in synergy with ryanodine receptors, which are famously known as "calcium sparks". Inspired by this self-regulated biological process, a smart Ca2+ concentration-modulated nanochannel system was developed by integrating a poly{N-isopropylacrylamide-co-acrylamide-[4-(trifluoromethyl) phenyl]-2-thiourea(0.2)-co-acrylamideDDDEEKC(0.2)} (denoted as PNI-co-CF3-PT0.2-co-DDDEEKC0.2) three-component copolymer onto the nanochannels of a porous anodic alumina (PAA) membrane. In this smart polymer design, the DDDEEKC hepta-peptide unit has an extraordinary binding affinity with Ca2+ through coordination bonds, while CF3-PT functions as a hydrogen bond mediation unit, facilitating the remarkable conformational transition of the PNI main chain in response to Ca2+-specific adsorption. Due to these futures, the dynamic gating behaviors of the modified nanochannels could be precisely manipulated by the Ca(2+)concentration. In addition, the sensitive Ca2+ response, as low as 10 pM with a high specificity toward Ca2+ capable of discriminating Ca2+ from other potential interference metal ions (e.g., K+, Cu2+, Mg2+, Zn2+, Fe3+, and Al3+), remarkable morphological change in the nanochannel and satisfactory reversibility indicate the great potential of Ca2+-responsive polymers for the fabrication of biodevices and artificial nanochannels.
WOS关键词STIMULI-RESPONSIVE POLYMER ; CONFORMATIONAL-CHANGE ; SELECTIVITY ; BINDING ; HYDROXYAPATITE ; FABRICATION ; TRANSPORT ; NANOPORES ; STATHERIN ; MEMBRANE
资助项目National Natural Science Foundation of China[51473131] ; National Natural Science Foundation of China[51533007] ; National Natural Science Foundation of China[21775116] ; DICP Innovation Funding[DICP-RC201801] ; LiaoNing Revitalization Talents Program[XLYC1802109] ; Wuhan Morning Light Plan of Youth Science and Technology
WOS研究方向Materials Science
语种英语
出版者NATURE PUBLISHING GROUP
WOS记录号WOS:000483901600001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP Innovation Funding ; DICP Innovation Funding ; LiaoNing Revitalization Talents Program ; LiaoNing Revitalization Talents Program ; Wuhan Morning Light Plan of Youth Science and Technology ; Wuhan Morning Light Plan of Youth Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP Innovation Funding ; DICP Innovation Funding ; LiaoNing Revitalization Talents Program ; LiaoNing Revitalization Talents Program ; Wuhan Morning Light Plan of Youth Science and Technology ; Wuhan Morning Light Plan of Youth Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP Innovation Funding ; DICP Innovation Funding ; LiaoNing Revitalization Talents Program ; LiaoNing Revitalization Talents Program ; Wuhan Morning Light Plan of Youth Science and Technology ; Wuhan Morning Light Plan of Youth Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP Innovation Funding ; DICP Innovation Funding ; LiaoNing Revitalization Talents Program ; LiaoNing Revitalization Talents Program ; Wuhan Morning Light Plan of Youth Science and Technology ; Wuhan Morning Light Plan of Youth Science and Technology
源URL[http://cas-ir.dicp.ac.cn/handle/321008/173317]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Qing, Guangyan
作者单位1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Tianjin Univ Sci & Technol, Res Ctr Modern Analyt Technol, Tianjin, Peoples R China
4.Dalian Univ Technol, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China
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GB/T 7714
Li, Yunlong,Xiong, Yuting,Wang, Dongdong,et al. Smart polymer-based calcium-ion self-regulated nanochannels by mimicking the biological Ca2+-induced Ca2+ release process[J]. NPG ASIA MATERIALS,2019,11:13.
APA Li, Yunlong.,Xiong, Yuting.,Wang, Dongdong.,Li, Xiuling.,Chen, Zhixiang.,...&Qing, Guangyan.(2019).Smart polymer-based calcium-ion self-regulated nanochannels by mimicking the biological Ca2+-induced Ca2+ release process.NPG ASIA MATERIALS,11,13.
MLA Li, Yunlong,et al."Smart polymer-based calcium-ion self-regulated nanochannels by mimicking the biological Ca2+-induced Ca2+ release process".NPG ASIA MATERIALS 11(2019):13.

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来源:大连化学物理研究所

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