Bioimaging (Biological Imaging) is the Key Ability in Noninvasive Medicine
“First, do no harm” (
Near-IR Luminescent Quantum Dots
Quantum dots can be used as nano-probes for in-vivo or in-vitro screening of cancer biomarkers and cell labelling.
Near-IR luminescent quantum dots when capped with molecules are able to recognize target cells or tissues.
These particular quantum dots carry great potential in biological applications thanks to their property that they interfere minimally with the auto-fluorescence from tissues.
Compared to conventional fluorescent dyes, quantum dots provide very sensitive detection with their brighter emissions at low concentrations. They also provide superior stability and non-bleaching in the long run.
Tracking in the Living Body
Quantum dots’ unique photoluminescence properties can be controlled precisely by elemental composition and particle size. These properties give one chance to utilize and assign distinct signals to different cells. By closely tracking the capped molecule in the the target, one can obtain multicolor imaging and track multiple targets simultaneously. What makes this possible is the broad absorption and narrow emission bands of Near IR Quantum Dots.