The Hydrothermal Synthesis of Quantum Dots Using Gelatin
Quantum dots (QD) have unique optical properties that have cutting-edge applications in medical imaging and biological research. Depending on the size, the QD will emit different colours - the larger the dot, the larger the wavelength. Traditionally, QD are made with cadmium selenide. Through high temperature and pressure, gelatin can be used to create carbon quantum dots - a completely organic substitute. By applying the principle of the quantum confinement effect, carbon can be synthesized into QD; thus, decreasing the toxicity and production costs and increasing the application uses. Through experimentation, a method of synthesizing distinct colours of QD has been developed.
QD synthesized from gelatin
Using an electron microscope to examine QD