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]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . 表面硫物种对钯-硫纳米片加氢性能的影响. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-. doi: 10.3866/PKU.WHXB202309043
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]
  Pengyu Dong , Yue Jiang , Zhengchi Yang , Licheng Liu , Gu Li , Xinyang Wen , Zhen Wang , Xinbo Shi , Guofu Zhou , Jun-Ming Liu , Jinwei Gao . NbSe₂纳米片优化钙钛矿太阳能电池的埋底界面. Acta Physico-Chimica Sinica, 2025, 41(3): 2407025-. doi: 10.3866/PKU.WHXB202407025
5. [5]
  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-. doi: 10.3866/PKU.WHXB202402016
6. [6]
  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
7. [7]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . 熔融中间体运输导向合成富氨基g-C₃N₄纳米片用于高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-. doi: 10.3866/PKU.WHXB202406021
8. [8]
  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 . 铂单原子功能化的二维Al-TCPP金属-有机框架纳米片用于增强光动力抗菌治疗. Acta Physico-Chimica Sinica, 2025, 41(5): 100046-. doi: 10.1016/j.actphy.2025.100046
9. [9]
  Heng Chen , Longhui Nie , Kai Xu , Yiqiong Yang , Caihong Fang . 两步焙烧法制备大比表面积和结晶性增强超薄g-C₃N₄纳米片及其高效光催化产H₂O₂. Acta Physico-Chimica Sinica, 2024, 40(11): 2406019-. doi: 10.3866/PKU.WHXB202406019
10. [10]
  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-. doi: 10.3866/PKU.WHXB202310029
11. [11]
  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
12. [12]
  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
13. [13]
  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
14. [14]
  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
15. [15]
  Jingke LIU , Jia CHEN , Yingchao HAN . Nano hydroxyapatite stable suspension system: Preparation and cobalt adsorption performance. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1763-1774. doi: 10.11862/CJIC.20240060
16. [16]
  Haiyu Nie , Chenhui Zhang , Fengpei Du . Ideological and Political Design for the Preparation, Characterization and Particle Size Control Experiment of Nanoemulsion. University Chemistry, 2024, 39(2): 41-46. doi: 10.3866/PKU.DXHX202306055
17. [17]
  Yongming Guo , Jie Li , Chaoyong Liu . Green Improvement and Educational Design in the Synthesis and Characterization of Silver Nanoparticles. University Chemistry, 2024, 39(3): 258-265. doi: 10.3866/PKU.DXHX202309057
18. [18]
  Zijian Jiang , Yuang Liu , Yijian Zong , Yong Fan , Wanchun Zhu , Yupeng Guo . Preparation of Nano Zinc Oxide by Microemulsion Method and Study on Its Photocatalytic Activity. University Chemistry, 2024, 39(5): 266-273. doi: 10.3866/PKU.DXHX202311101
19. [19]
  Zhengli Hu , Jia Wang , Yi-Lun Ying , Shaochuang Liu , Hui Ma , Wenwei Zhang , Jianrong Zhang , Yi-Tao Long . Exploration of Ideological and Political Elements in the Development History of Nanopore Electrochemistry. University Chemistry, 2024, 39(8): 344-350. doi: 10.3866/PKU.DXHX202401072
20. [20]
  Xiaxue Chen , Yuxuan Yang , Ruolin Yang , Yizhu Wang , Hongyun Liu . Adjustable Polychromatic Fluorescence: Investigating the Photoluminescent Properties of Copper Nanoclusters. University Chemistry, 2024, 39(9): 328-337. doi: 10.3866/PKU.DXHX202308019

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(680)
HTML views(101)

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