Citation: CHEN Wen-Yong, WANG Jian-Hua, YANG Tian-Tian, HUO Geng-Yang, XU Wei, LI Bin, ZHOU Xing-Fei. Self-assembly of Aβ16-22 in Water Nanofilm on Mica Surface[J]. Chinese Journal of Analytical Chemistry, ;2021, 49(4): 611-617. doi: 10.19756/j.issn.0253-3820.201696 shu

Self-assembly of Aβ16-22 in Water Nanofilm on Mica Surface

1.
School of Physics Science and Technology, Ningbo University, Ningbo 315211, China;
2.
Basic Cross-research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

Corresponding author: ZHOU Xing-Fei, zhouxingfei@nbu.edu.cn
Received Date: 23 November 2020
Revised Date: 20 January 2021

Fund Project: Supported by the National Natural Science Foundation of China (Nos.31670871, 12074208), the Natural Science Foundation of Zhejiang Province, China (No.LY18A040003) and the Natural Science Foundation of Ningbo, China (No.2018A610220).

The self-assembly of amyloid peptides in crowded environment has attracted tremendous attention due to its close relation to human neurological diseases. The experiments investigated the aggregation and diffusion behavior of Aβ16-22 in the water nanofilm adsorbed on the surface of mica substrate under a closed environment. The result showed that the peptide molecules could diffuse and aggregate in water layer and formed peptide nanosheets with different heights under various conditions, and the nanosheet formation was remarkably affected by the incubation temperature and peptide concentration. The elastic modulus of Aβ16-22 nanosheets was further evaluated by PeakForce-QNM, and it was found that the elastic modulus were estimated to be about (5.0±0.4) GPa, notably stiffer than that of amyloid fibrils ((3.1±0.2) GPa) formed in bulk solution. NanoIR analysis indicated that the secondary structure of nanosheets adsorbed on mica surface was mainly related to α-helix conformations, unlike the β-sheet structure of amyloid fibrils. We attributed the discrepancy of compression elasticity to the difference of peptide second structure of these two species.
- Water nanofilm,
- Amyloid peptides,
- Nanosheets,
- Elastic modulus
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
1. [1]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
2. [2]
  Gaopeng Liu , Lina Li , Bin Wang , Ningjie Shan , Jintao Dong , Mengxia Ji , Wenshuai Zhu , Paul K. Chu , Jiexiang Xia , Huaming Li . Construction of Bi Nanoparticles Loaded BiOCl Nanosheets Ohmic Junction for Photocatalytic CO₂ Reduction. Acta Physico-Chimica Sinica, 2024, 40(7): 2306041-0. doi: 10.3866/PKU.WHXB202306041
3. [3]
  Huanhuan XIE , Yingnan SONG , Lei LI . Two-dimensional single-layer BiOI nanosheets: Lattice thermal conductivity and phonon transport mechanism. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 702-708. doi: 10.11862/CJIC.20240281
4. [4]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . Surface Sulfur Species Influence Hydrogenation Performance of Palladium-Sulfur Nanosheets. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-0. doi: 10.3866/PKU.WHXB202309043
5. [5]
  Yang Li , Jiachen Li , Daidi Fan . 二硫化钼纳米片的制备及其纳米酶性能探究——介绍一个大学化学综合实验. University Chemistry, 2025, 40(8): 233-240. doi: 10.12461/PKU.DXHX202410016
6. [6]
  Pengyu Dong , Yue Jiang , Zhengchi Yang , Licheng Liu , Gu Li , Xinyang Wen , Zhen Wang , Xinbo Shi , Guofu Zhou , Jun-Ming Liu , Jinwei Gao . NbSe₂ Nanosheets Improved the Buried Interface for Perovskite Solar Cells. Acta Physico-Chimica Sinica, 2025, 41(3): 100029-0. doi: 10.3866/PKU.WHXB202407025
7. [7]
  Qin Li , Huihui Zhang , Huajun Gu , Yuanyuan Cui , Ruihua Gao , Wei-Lin Dai . In situ Growth of Cd_0.5Zn_0.5S Nanorods on Ti₃C₂ MXene Nanosheet for Efficient Visible-Light-Driven Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2025, 41(4): 100031-0. doi: 10.3866/PKU.WHXB202402016
8. [8]
  Qiangqiang SUN , Pengcheng ZHAO , Ruoyu WU , Baoyue CAO . Multistage microporous bifunctional catalyst constructed by P-doped nickel-based sulfide ultra-thin nanosheets for energy-efficient hydrogen production from water electrolysis. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1151-1161. doi: 10.11862/CJIC.20230454
9. [9]
  Fanpeng Meng , Fei Zhao , Jingkai Lin , Jinsheng Zhao , Huayang Zhang , Shaobin Wang . Optimizing interfacial electric fields in carbon nitride nanosheet/spherical conjugated polymer S-scheme heterojunction for hydrogen evolution. Acta Physico-Chimica Sinica, 2025, 41(8): 100095-0. doi: 10.1016/j.actphy.2025.100095
10. [10]
  Shiyang He , Dandan Chu , Zhixin Pang , Yuhang Du , Jiayi Wang , Yuhong Chen , Yumeng Su , Jianhua Qin , Xiangrong Pan , Zhan Zhou , Jingguo Li , Lufang Ma , Chaoliang Tan . Pt Single-Atom-Functionalized 2D Al-TCPP MOF Nanosheets for Enhanced Photodynamic Antimicrobial Therapy. Acta Physico-Chimica Sinica, 2025, 41(5): 100046-0. doi: 10.1016/j.actphy.2025.100046
11. [11]
  Zehao Zhang , Zheng Wang , Haibo Li . Preparation of 2D V₂O₃@Pourous Carbon Nanosheets Derived from V₂CF_x MXene for Capacitive Desalination. Acta Physico-Chimica Sinica, 2024, 40(8): 2308020-0. doi: 10.3866/PKU.WHXB202308020
12. [12]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
13. [13]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . Remarkable Photocatalytic H₂O₂ Production Efficiency over Ultrathin g-C₃N₄ Nanosheet with Large Surface Area and Enhanced Crystallinity by Two-Step Calcination. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-0. doi: 10.3866/PKU.WHXB202406019
14. [14]
  Mengfei He , Chao Chen , Yue Tang , Si Meng , Zunfa Wang , Liyu Wang , Jiabao Xing , Xinyu Zhang , Jiahui Huang , Jiangbo Lu , Hongmei Jing , Xiangyu Liu , Hua Xu . Epitaxial Growth of Nonlayered 2D MnTe Nanosheets with Thickness-Tunable Conduction for p-Type Field Effect Transistor and Superior Contact Electrode. Acta Physico-Chimica Sinica, 2025, 41(2): 100016-0. doi: 10.3866/PKU.WHXB202310029
15. [15]
  Gaofeng Zeng , Shuyu Liu , Manle Jiang , Yu Wang , Ping Xu , Lei Wang . Micro/Nanorobots for Pollution Detection and Toxic Removal. University Chemistry, 2024, 39(9): 229-234. doi: 10.12461/PKU.DXHX202311055
16. [16]
  Xiaoyu YANG , Yejun ZHANG , Yu ZOU , Hongchao YANG , Jiang JIANG , Qiangbin WANG . Research progress of inorganic X-ray nanoscintillators. Chinese Journal of Inorganic Chemistry, 2025, 41(10): 1929-1952. doi: 10.11862/CJIC.20250122
17. [17]
  Ruifeng CHEN , Chao XU , Jianting JIANG , Tianshe YANG . Gold nanorod/zinc oxide/mesoporous silica nanoplatform: A triple-modal platform for synergistic anticancer therapy. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2272-2282. doi: 10.11862/CJIC.20250117
18. [18]
  Hong LI , Xiaoying DING , Cihang LIU , Jinghan ZHANG , Yanying RAO . Detection of iron and copper ions based on gold nanorod etching colorimetry. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 953-962. doi: 10.11862/CJIC.20230370
19. [19]
  Guimin ZHANG , Wenjuan MA , Wenqiang DING , Zhengyi FU . Synthesis and catalytic properties of hollow AgPd bimetallic nanospheres. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 963-971. doi: 10.11862/CJIC.20230293
20. [20]
  Yuhao SUN , Qingzhe DONG , Lei ZHAO , Xiaodan JIANG , Hailing GUO , Xianglong MENG , Yongmei GUO . Synthesis and antibacterial properties of silver-loaded sod-based zeolite. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 761-770. doi: 10.11862/CJIC.20230169

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(940)
HTML views(146)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142