Ultra-Sensitive Isopropanol Biochemical Gas Sensor (Bio-Sniffer) for Monitoring of Human Volatiles.

Ultra-Sensitive Isopropanol Biochemical Gas Sensor (Bio-Sniffer) for Monitoring of Human Volatiles.
复制标题

用于人体挥发物监测的超灵敏异丙醇生化气体传感器(生物嗅探器)。

DOI:
10.3390/s20236827
复制
发表时间:
2020-11-29
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Mitsubayashi K
Mitsubayashi K
中科院分区:
其他
文献类型:
--
作者:
Chien PJ;Suzuki T;Ye M;Toma K;Arakawa T;Iwasaki Y;Mitsubayashi K

文献摘要

参考文献

被引文献

相似文献

我们的团队以前开发了一种生化气体传感器,用于测量呼出空气中的异丙醇(IPA),并将其应用于健康受试者和糖尿病患者的呼吸IPA研究。在这项研究中,原来的生物嗅探器进行了修改,一系列的组件,提高了检测限(LOD)。首先,改进的IPA生物嗅探器使用C8855型光电倍增管(PMT),其在烟酰胺腺嘌呤二核苷酸(NADH)荧光的峰值波长处的光子灵敏度方面表现良好。第二,多芯分叉光纤,其中包括36根光纤,以取代以前的双芯类型,增强了荧光收集。第三,加强光纤探头的宽度,并重新设计流动池,以增加与空气样品接触的酶固定化膜的面积。这些修改将检测限降低到0.5 ppb,比以前的1.0 ppb有显著提高。此外,改进的生物嗅探器成功地分析了志愿者呼出的空气中的IPA浓度,这证实了其对真实世界样本检测的能力。改进后的生物嗅探器更适用于呼吸测量和其他极低浓度样品的检测。
Our groups have previously developed a biochemical gas sensor to measure isopropanol (IPA) in exhaled air and have applied it for breath IPA investigation in healthy subjects and diabetes patients. In this study, the original bio-sniffer was modified with a series of components that improved the limit of detection (LOD). First, the modified IPA bio-sniffer used a C8855-type photomultiplier tube (PMT) that performed well in the photon sensitivity at the peak wavelength of nicotinamide adenine dinucleotide (NADH) fluorescence. Second, the multi-core bifurcated optical fiber, which incorporated 36 fibers to replace the previous dual-core type, enhanced the fluorescence collection. Third, the optical fiber probe was reinforced for greater width, and the flow-cell was redesigned to increase the area of the enzyme-immobilized membrane in contact with the air sample. These modifications lowered the detection limit to 0.5 ppb, a significant increase over the previous 1.0 ppb. Moreover, the modified bio-sniffer successfully analyzed the IPA concentration in exhaled air from a volunteer, which confirmed its capability for real-world sample detection. The modified bio-sniffer is more applicable to breath measurement and the detection of other extremely-low-concentration samples.
DOI: 10.1039/c9ra00441f
发表时间: 2019-04-30
期刊: RSC advances
影响因子: 3.9
作者:
通讯作者: --
DOI: 10.1021/ac4000656
发表时间: 2013-03-19
影响因子: 7.4
作者:
Huang, Juzheng;Kumar, Sacheen;Hanna, George B.
通讯作者: Hanna, George B.
DOI: 10.1088/1752-7163/aa94e7
发表时间: 2017-12-01
影响因子: 3.8
作者:
Biagini, D.;Lomonaco, T.;Di Francesco, F.
通讯作者: Di Francesco, F.
DOI: 10.1093/ajcn/76.1.65
发表时间: 2002-07-01
影响因子: 7.1
作者:
Musa-Veloso, K;Likhodii, SS;Cunnane, SC
通讯作者: Cunnane, SC
DOI: 10.1177/0956797613515681
发表时间: 2014-03-01
影响因子: 8.2
作者:
Olsson, Mats J.;Lundstrom, Johan N.;Lekander, Mats
通讯作者: Lekander, Mats