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Selective nonanal molecular recognition with SnO 2 nanosheets for lung cancer sensor
Author(s) -
Masuda Yoshitake,
Kato Kazumi,
Kida Masahito,
Otsuka Jun
Publication year - 2019
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13154
Subject(s) - nonanal , acetaldehyde , formaldehyde , acetone , aldehyde , materials science , carbon monoxide , molecule , photochemistry , inorganic chemistry , chemistry , ethanol , organic chemistry , catalysis
SnO 2 nanosheets were developed to detect nonanal gas in the order of ppb which was a marker of lung cancer. The nanosheets showed higher resistance change in nonanal gas than that in carbon monoxide (CO), nitrogen dioxide (NO 2 ), acetone (CH 3 COCH 3 ), hydrogen (H 2 ), ethanol (C 2 H 6 O), ammonia (NH 3 ), hydrogen sulfide (H 2 S), formaldehyde (HCHO), acetaldehyde (CH 3 CHO), or butanal (C 4 H 8 O). Crystal surfaces of the nanosheets would be effective for adsorption of nonanal molecules. Furthermore, it was shown that resistance changed with an increase in carbon number in aldehyde. The nanosheets had molecular selectivity for a series of aldehyde molecules. Molecular recognition of the nanosheets gave us a great advantage to detect nonanal gas which was produced by lung cancer.