26
M. A. Espinosa-Hernandez et al.
Table 2.1
(continued)
BioMEMS platform
Main components
Fabrication strategy Mechanisms of
operation
Detected analyte
Specifics
References
Glass nanofibers
colorimetric biosensor
• Detection ribbon
made from hardened
PVC
• Detection fabric with
immobilized and
stabilized AChE
• Cellulose paper strip
impregnated with
ATChI and Ellman’s
reagent
The biosensor was a
plastic strip with an
indication fabric and
the carrier
impregnated with a
substrate and an
indicator. The
Ellman’s reagent is
used as a color
indicator, joined with
the substrate on the
cellulose filter paper.
To enhance the color,
glass nanofibers
were used as the
substrate
The moistened
detection fabric was
exposed to air,
contaminated water or
pressing a wet
detection zone to the
test surface resulting in
color change. Yellow
was the indicator that
no inhibitors exist
while white
demonstrated the
presence of inhibitors
Cholinesterase
inhibitors
The paper made of
glass nanofibers
provided a better
color effect than the
standard cellulose
paper within the
same 2 min
Matˇ ejovský
and
Pitschmann
(2018)
(continued)