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Quantum Dots for Bioimaging
Zoraida P. Aguilar
3.1 Introduction
Nanomaterials exhibit unique size-tunable as well as shape-dependent physicochemical
properties that do not resemble those of bulk materials. Recent advances in nanomaterials
open new avenues to develop various novel biosensors. These nanomaterial-based biosen-
sors, nanobiosensors, make use of the electrochemical and optical properties of nanoma-
terials. These nanobiosensors are expected to demonstrate an improved limit of detection,
sensitivity, ease of use, portability, low cost, and selectivity.
1–3
The size of nanomaterials
that is comparable to the dimensions of biomolecul