the selection of individual sensor elements in a colorimetric or fluorometric sensor array is determined via the supposed application, which means that the array needs to be used to detect a wide range of analytes or only for a specialized class of analytes. The potential of analytes varies in various aspects in their chemical properties: solubility, hydrophilicity, redox oxidation, hydrogen bonding, Lewis donor/receptor, and acidity and basicity of the target analyte have to be considered. In general, a comprehensive general-purpose optical sensor array ought to integrate as much as possible chemical diversity into individual sensor components. due to the presence of metal ion binding sites in olfactory receptors, the inclusion of dyes containing metal ions plays an essential role within the construction of a chemically responsive sensor array. attention must also be given to possible interferences by complex and environmental environments that may cause false-positive responses. finally, color characteristics should additionally be considered: the stability of the printed colors, the printability of the color formula, and the quantitative color contribution to the responsiveness and dimensions of the array.
the
selection of individual sensor elements in a colorimetric or
fluorometric
sensor
array
is determined
via the supposed application, which means that the
array
needs to be
used
to detect a wide range of analytes or
only
for a specialized
class
of analytes. The potential of analytes varies in various aspects in their chemical properties: solubility, hydrophilicity, redox oxidation, hydrogen bonding, Lewis donor/receptor, and acidity and basicity of the target analyte
have to
be considered
.
In general
, a comprehensive general-purpose optical sensor
array
ought to integrate as much as possible chemical diversity into individual sensor components.
due
to the presence of metal ion binding sites in olfactory receptors, the inclusion of dyes containing metal ions plays an essential role within the construction of a
chemically
responsive sensor
array
.
attention
must
also
be
given
to possible interferences by complex and environmental environments that may cause false-
positive
responses.
finally
,
color
characteristics should
additionally
be considered
: the stability of the printed colors, the
printability
of the
color
formula, and the quantitative
color
contribution to the responsiveness and dimensions of the
array
.