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Updated: Aug 15, 2026

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原纳米纤维-林宁复合海绵具有可调节的等级孔结构,可有效地吸收低频声音

Yan Ma1, Mu He2, Jiaxuan Wang3

  • 1Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 16, 2025
PubMed
概括

这项研究引入了一种新的原-素海绵 (CLS),用于可持续的声音吸收. 这些基于可再生生物质的材料在广泛的频率范围内提供了优异的降噪.

关键词:
原蛋白纳米纤维 原蛋白纳米纤维层次化的孔隙结构.红色的线性蛋白质 (lignin) 是一种噪音污染 噪音污染 噪音污染

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¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...