Unexpectedly super strong paramagnetism of aromatic peptides due to cations

Haijun Yang; Liuhua Mu; Lei Zhang; Zixin Wang; Shiqi Sheng; Peng Xiu; Yongshun Song; Jun Hu; Xin Zhang; Feng Zhang; Haiping Fang

Unexpectedly super strong paramagnetism of aromatic peptides due to cations

Biological Physics 2020-10-16 v1

Authors: Haijun Yang , Liuhua Mu , Lei Zhang , Zixin Wang , Shiqi Sheng , Peng Xiu , Yongshun Song , Jun Hu , Xin Zhang , Feng Zhang , Haiping Fang

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Abstract

We found that the AYFFF self-assemblies in the chloride solution of some divalent cations ( $Zn^{2+}, Mg^{2+},$ and $Cu^{2+}$ ) display super strong paramagnetism, which may approach the mass susceptibility of ferromagnetism. We attribute the observed super strong paramagnetism to the existence of the aromatic rings, which interact with the cations through cation-{\pi} interaction.

Keywords

paramagnetism aromatic peptides divalent cations cation-pi interaction self-assemblies

Cite

@article{arxiv.2010.07774,
  title  = {Unexpectedly super strong paramagnetism of aromatic peptides due to cations},
  author = {Haijun Yang and Liuhua Mu and Lei Zhang and Zixin Wang and Shiqi Sheng and Peng Xiu and Yongshun Song and Jun Hu and Xin Zhang and Feng Zhang and Haiping Fang},
  journal= {arXiv preprint arXiv:2010.07774},
  year   = {2020}
}

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6 pages, 1 figure

Unexpectedly super strong paramagnetism of aromatic peptides due to cations

Abstract

Keywords

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