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Organic nickel‐iron layered double hydroxides (ONiFe‐LDH) were assembled on carboxylated carbon nanotubes (CNTs) through co‐precipitation method and characterized. EP/ONiFe‐LDH‐CNTs nanocomposites containing 4 wt% of ONiFe‐LDH‐CNTs with different ratios of ONiFe‐LDH and CNTS were prepared by ultrasonic dispersion and program temperature curing method. Strong combination of the above nanofillers with the EP matrix provided an efficient thermal and flame retardant improvement for the resulting nanocomposites. It is showed that EP containing 4 wt% ONiFe‐LDH‐CNTs hybrid exhibited superior flame retardant and thermal properties compared with pure EP.

Self-assembly of hyperphosphorylated tau proteins into neurofibrillary tangles (NFT) is a hallmark of Alzheimer's disease. Previous studies suggest that the tau monomer may play an important role in NFTs formation in two general categories: inert (M i ) monomer and seedcompetent (M s ) monomer. In the current study, replica-exchange molecular dynamics (REMD) were performed to investigate the effect of histidine tautomerism on the structures of a key fragment (R3) of tau protein and the transformation between different conformations. Based on the simulation results, we propose the histidine tautomerism hypothesis for tau protein misfolding. Histidine tautomerism greatly expands the conformational library, which triggers the emergence of conformations with higher aggregation tendency. Moreover, the conversions existing in both isomers and conformations may cause protein misfolding to occur more readily.

The properties of G@(MoS2)X/(WS2)4−X bidirectional heterostructures under the external electric fields have been investigated by first principles calculations.