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首页> 外文期刊>IEEE transactions on nanobioscience >Using Carbon Nanotubes to Absorb Low-Concentration Hydrogen Sulfide in Fluid
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Using Carbon Nanotubes to Absorb Low-Concentration Hydrogen Sulfide in Fluid

机译:使用碳纳米管吸收流体中的低浓度硫化氢

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摘要

Hydrogen sulfide is a colorless and flammable gas under room temperature. Usually hydrogen sulfide is considered to be toxic; however, the recent research revealed that hydrogen sulfide in the cardiovascular system plays the role of a vascular dilator. The physiological role of hydrogen sulfide depends on its in vivo level. As such, the measurement of hydrogen sulfide with nano-quantity resolution becomes an important subject. Existing methods generally require bulky samples and are invasive and offline. It will be significantly helpful to measure hydrogen sulfide with a small amount of tissue in a noninvasive method The first attempt was to take a blood or serum sample with a trace amount to examine the interaction between hydrogen sulfide and carbon nanotube. The carbon nanotube is chosen because of a known fact that hydrogen sulfide can be adsorbed by activated carbon. The carbon nanotube is an excellent activated carbon in this regard. Fluorescence intensity of the carbon nanotube with and without immersion of it in a hydrogen sulfide medium was examined in the study. It was found that the intensities increase as the concentrations of hydrogen sulfide increase. Furthermore, the concentration of 10$muhboxM$hydrogen sulfide in water was successfully measured.
机译:硫化氢在室温下为无色易燃气体。通常认为硫化氢是有毒的。然而,最近的研究表明,硫化氢在心血管系统中起着血管扩张器的作用。硫化氢的生理作用取决于其体内水平。因此,以纳米量级分辨率测量硫化氢成为重要的课题。现有方法通常需要笨重的样品,并且是侵入性的和离线的。用非侵入性方法测量少量组织中的硫化氢将非常有帮助。第一个尝试是采集痕量的血液或血清样本,以检查硫化氢与碳纳米管之间的相互作用。选择碳纳米管是因为已知的事实,即硫化氢可以被活性炭吸附。就此而言,碳纳米管是极好的活性炭。在研究中研究了有和没有浸入硫化氢介质中的碳纳米管的荧光强度。已经发现,强度随着硫化氢浓度的增加而增加。此外,成功地测量了水中的10 mu箱·硫化氢的浓度。

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