1 research outputs found
Portable Instrument for Hemoglobin Determination Using Room-Temperature Phosphorescent Carbon Dots
A portable reconfigurable platform for hemoglobin determination based on inner filter
quenching of room-temperature phosphorescent carbon dots (CDs) in the presence of H2O2 is
described. The electronic setup consists of a light-emitting diode (LED) as the carbon dot optical exciter
and a photodiode as a light-to-current converter integrated in the same instrument. The reconfigurable
feature provides adaptability to use the platform as an analytical probe for CDs coming from different
batches with some variations in luminescence characteristics. The variables of the reaction were
optimized, such as pH, concentration of reagents, and response time; as well as the variables of the
portable device, such as LED voltage, photodiode sensitivity, and adjustment of the measuring range
by a reconfigurable electronic system. The portable device allowed the determination of hemoglobin
with good sensitivity, with a detection limit of 6.2 nM and range up to 125 nM.MINECO (Spain)
CTQ2016-78754-C2-1-REuropean Union (EU