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123 results on '"Zhu, B.L."'

15. Effects of diluents and Ag nanowires on the electrical-optical properties of polymer dispersed liquid crystal films based on aromatic polyurethane acrylate

Author

Wang, C.C., Zhu, B.L., Yi, C.H., Chen, H.X., Peng, H., Yin, J.H., Wu, J., and Gu, H.Z.

Subjects
General Materials Science, General Chemistry, Condensed Matter Physics
Abstract

Polymer dispersed liquid crystal (PDLC) films have potential applications in many aspects due to unique electrically switching properties, and thus the films with excellent comprehensive properties are highly demanded at present. In this study, aromatic polyurethane acrylate (PUA) was used as polymer-matrix, and effect of diluents [lauryl methacrylate (LMA) and isobornyl acrylate (IBOA)] content on the electrical-optical properties of PDLC films was investigated. The results indicate that increase of PUA/LMA or decrease of LMA/IBOA weight ratio increases threshold and saturation voltages (Vth and Vsat), decreases on- and off-state transmittances (Ton and Toff) and increases contrast ratio. Under optimised PUA/LMA weight ratio of 31/19 or PUA/LMA/IBOA weight ratio of 31/15/4, the Vth and Vsat of the films first increase and then decrease with increasing Ag nanowires (NWs) content, and better overall properties are achieved at 0.05 or 0.075 wt.% Ag NWs, respectively. In order to explore essential reasons for the influence of diluents and Ag NWs on the properties of PDLC films, the relationships between film properties (Vth or Vsat, Ton, Toff, and response time) and liquid crystal (LC) droplets size were analysed emphatically, and the changes of system viscosity and anchoring force between polymer-matrix and LC droplets were also discussed.

Published
2023
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40. Rare Branched Fatty Acids Characterize the Lipid Composition of the Intra-Aerobic Methane Oxidizer 'Candidatus Methylomirabilis oxyfera'

Author

Kool, D.M., Zhu, B.L., Rijpstra, W.I.C., Jetten, M.S.M., Ettwig, K.F., Sinninghe Damsté, J.S., Kool, D.M., Zhu, B.L., Rijpstra, W.I.C., Jetten, M.S.M., Ettwig, K.F., and Sinninghe Damsté, J.S.

Abstract

The recently described bacterium "Candidatus Methylomirabilis oxyfera" couples the oxidation of the important greenhouse gas methane to the reduction of nitrite. The ecological significance of "Ca. Methylomirabilis oxyfera" is still underexplored, as our ability to identify the presence of this bacterium is thus far limited to DNA-based techniques. Here, we investigated the lipid composition of "Ca. Methylomirabilis oxyfera" to identify new, gene-independent biomarkers for the environmental detection of this bacterium. Multiple "Ca. Methylomirabilis oxyfera" enrichment cultures were investigated. In all cultures, the lipid profile was dominated up to 46% by the fatty acid (FA) 10-methylhexadecanoic acid (10MeC(16:0)). Furthermore, a unique FA was identified that has not been reported elsewhere: the monounsaturated 10-methylhexadecenoic acid with a double bond at the Delta 7 position (10MeC(16:1 Delta 7)), which comprised up to 10% of the total FA profile. We propose that the typical branched fatty acids 10MeC(16:0) and 10MeC(16:1 Delta 7) are key and characteristic components of the lipid profile of "Ca. Methylomirabilis oxyfera." The successful detection of these fatty acids in a peatland from which one of the enrichment cultures originated supports the potential of these unique lipids as biomarkers for the process of nitrite-dependent methane oxidation in the environment.

Published
2012

41. Pmoa primers for detection of anaerobic methanotrophs

Author

Luesken, F.A., Zhu, B.L., Alen, T.A. van, Butler, M.K., Diaz, M.R., Song, B., Camp, H.J.M. op den, Jetten, M.S.M., Ettwig, K.F., Luesken, F.A., Zhu, B.L., Alen, T.A. van, Butler, M.K., Diaz, M.R., Song, B., Camp, H.J.M. op den, Jetten, M.S.M., and Ettwig, K.F.

Abstract

Contains fulltext : 92199.pdf (publisher's version ) (Open Access)

Published
2011

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