in this review article, we have discussed a selection of subjects which includes fatal pulmonary diseases especially lung cancer and their mortality statistics, methods of diagnosing these diseases, the importance of early detection, electronic nose technology and particularly the optoelectronic nose, gas sensors and chemical sensing, colorimetric sensor arrays, color sensing mechanisms, types of color sensing elements, statistical analysis and modeling, varieties of target gases studied with colorimetric sensor arrays, materials used within the colorimetric sensor arrays and in addition, in the last section, we mentioned the development of the colorimetric sensor array using advanced nanoparticles and hydrogels, in addition to numerous case studies with the usage of colorimetric sensors, that a summary of their results is collected in table 3. As mentioned above, the development of colorimetric sensors is quite appealing due to their real-time operation, high sensitivity, selectivity, easy visualization, and so forth. The optoelectronic nose, based on pattern recognition of the color changes of colorimetric sensor arrays, has emerged as a versatile technique for the identification of chemically various analytes mixture like breath, which needs to be used to improve the cure rate of diseases. recently optical sensing witnessed rapid development, in sensing materials which include nanotechnology and nanomaterials advantages, in addition to analytical techniques and imaging systems.
in
this review article, we have discussed a selection of subjects which includes fatal pulmonary diseases
especially
lung cancer and their mortality statistics, methods of diagnosing these diseases, the importance of early detection, electronic nose technology and
particularly
the
optoelectronic
nose, gas sensors and chemical
sensing
, colorimetric sensor
arrays
, color
sensing
mechanisms, types of color
sensing
elements, statistical analysis and modeling, varieties of target gases studied with colorimetric sensor
arrays
, materials
used
within the colorimetric sensor
arrays
and
in addition
, in the last section, we mentioned the development of the colorimetric sensor
array
using advanced nanoparticles and hydrogels,
in addition
to numerous case studies with the usage of colorimetric sensors, that a summary of their results
is collected
in table 3. As mentioned above, the development of colorimetric sensors is quite appealing due to their real-time operation, high sensitivity, selectivity, easy visualization, and
so
forth. The
optoelectronic
nose, based on pattern recognition of the color
changes
of colorimetric sensor
arrays
, has emerged as a versatile technique for the identification of
chemically
various
analytes
mixture like breath, which needs to be
used
to
improve
the cure rate of diseases.
recently
optical
sensing
witnessed rapid development, in
sensing
materials which include nanotechnology and nanomaterials advantages,
in addition
to analytical techniques and imaging systems.