Exploring the interactions between flawed materials and YAP65 to reveal the role of vacancy defects in MoS2 sheet nanotoxicity
Source abstract
Abstract
The surface characteristics of nanomaterials primarily determine their combination with biomolecules, and the inescapable defects on the surface of nanomaterials could alter materials structure and properties. In this work, according to the structure and composition of the material, we designed three representative MoS2 nanosheets with different vacancy defects. Then the interactions between the three materials and protein YAP65 WW-domain were investigated using molecular dynamics simulations. The results indicated that the third β-strand of YAP65 was lost in the binding to MoS2, which is due to the favorable van der Waals interaction between YAP65 and MoS2. Compared with ideal MoS2 sheet, the two defective MoS2 sheet (D9p-MoS2, D12n-MoS2) significantly accelerated the destruction of the third β-strand of YAP65. This should be because defect makes the surface of MoS2 activated and charged. On the surface of MoS2 with the vacancy defects of diverse size, YAP65 displayed similar structural damage, indicating that the size of defects has little effect on MoS2 toxicity. These findings elucidate the effect of defects on the nanotoxicity of MoS2.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphene and Nanomaterials Applications · Graphene research and applications · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
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