Lehigh University: Biomanufacturing of CdS Quantum Dots


Great Things from Small Things .. Nanotechnology Innovation

Lehigh QD 062415 id40545A team of Lehigh University engineers have demonstrated a bacterial method for the low-cost, environmentally friendly synthesis of aqueous soluble quantum dot (QD) nanocrystals at room temperature.
Principal researchers Steven McIntosh, Bryan Berger and Christopher Kiely, along with a team of chemical engineering, bioengineering, and material science students present this novel approach for the reproducible biosynthesis of extracellular, water-soluble QDs in the July 1 issue of the journal Green Chemistry (“Biomanufacturing of CdS quantum dots”). This is the first example of engineers harnessing nature’s unique ability to achieve cost effective and scalable manufacturing of QDs using a bacterial process.
Biomanufacturing of CdS Quantum Dots
Using an engineered strain of Stenotrophomonas maltophilia to control particle size, Lehigh researchers biosynthesized quantum dots using bacteria and cadmium sulfide to provide a route to low-cost, scalable and green synthesis of CdS nanocrystals with extrinsic crystallite size control in the quantum confinement range. The result is CdS semiconductor…

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