Publications by authors named "Beibei Qiao"

Article Synopsis
  • - HfO (hafnium oxide) is a promising dielectric material in electronics, noted for its ferroelectric properties since 2011, with research focusing on stabilizing its polar o-phase structure.
  • - The study involved growing non-doped HfO thin films on SrTiO substrates using pulsed laser deposition (PLD), revealing that as film thickness increases, surface roughness also increases.
  • - Analysis techniques like atomic force microscopy and X-ray photoelectron spectroscopy confirmed the films' purity and structural quality, while electron microscopy studies showed the HfO/SrTiO interface is atomically abrupt and incoherent.
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A novel carboxylesterase gene, named dlfae4, was discovered and sequenced from a soil metagenomic library. The dlfae4 gene was composed of 1017 base pairs encoding 338 amino acid residues with a predicted molecular mass of 37.2 kDa.

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Objectives: To discover novel feruloyl esterases (FAEs) by the function-driven screening procedure from soil metagenome.

Results: A novel FAE gene bds4 was isolated from a soil metagenomic library and over-expressed in Escherichia coli. The recombinant enzyme BDS4 was purified to homogeneity with a predicted molecular weight of 38.

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