Biosensing of an indoor volatile organic compound on the basis of fungal growth.
A fungal biosensor plate was applied to assessment of the harmfulness of air polluted by formaldehyde. Alternariaalternata, Eurotiumherbariorum and Aspergilluspenicillioides were used as fungal species. Fungal mycelium length and optical transparency of the biosensor plate were employed as indices of the fungal growth. Formaldehyde in air was detected on the basis of growth inhibition, reflected by suppression of the growth indices. Dynamic range of the measurement was 700-4000 microg m(-3) or broader. Eurotiumherbariorum and Aspergilluspenicillioides were the most suitable fungal species to formaldehyde sensing based on the mycelium length and that based on the transparency, respectively.
Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba Meguro-Ku, Tokyo, Japan.sczar@iis.u-tokyo.ac.jp
Janghoo
J
Seo
Shinsuke
S
Kato
Tetsu
T
Tatsuma
Satoko
S
Chino
Kazutake
K
Takada
Hideo
H
Notsu
D016902:Air Pollution, Indoor / Q000009:adverse effects* / Q000032:analysis*; D004305:Dose-Response Relationship, Drug; D004784:Environmental Monitoring / Q000379:methods*; D005557:Formaldehyde / Q000032:analysis; D005658:Fungi / Q000187:drug effects* / Q000254:growth & development*; D025282:Mycelium / Q000187:drug effects / Q000254:growth & development; D009930:Organic Chemicals / Q000032:analysis* / Q000633:toxicity*; D013056:Spectrophotometry, Ultraviolet; D013172:Spores, Fungal / Q000187:drug effects / Q000254:growth & development
D009930:Organic Chemicals; D005557:Formaldehyde