Biomedical Engineering Reference
In-Depth Information
applied as immobilization surface, either using physical adsorption, cova-
lent bonding or composite mixing / matrix phase. Gr based biosensors
showed clear advantages in terms of analytical performance for the deter-
mination and quantii cation of environment pollutants. Higher stability,
lower detection limits and high sensitivity were the improved parameters
when comparing the developed GR based designs with other conventional
ones.
Research will continue as the challenge in the construction of new sen-
sors for the detection of chemicals as phenols or pesticides is to achieve a
correct balance between stability and enzyme activity, as well as the simul-
taneous determination of dif erent compounds in real samples.
h e success of nanomaterials for the analysis of this kind of compounds
lies in the enzyme availability due to the nanometer structures, which con-
tribute to the catalytic ef ect. Also, the construction of smaller devices is
favored, allowing real-time analysis.
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