Browsing Waterloo Research by Author "Helwa, Youssef"
Now showing items 1-2 of 2
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Aptamer-Functionalized Hydrogel Microparticles for Fast Visual Detection of Mercury(II) and Adenosine
Helwa, Youssef; Dave, Neeshma; Froidevaux, Romain; Samadi, Azadeh; Liu, Juewen (American Chemical Society, 2012-04-25)With a low optical background, high loading capacity, and good biocompatibility, hydrogels are ideal materials for immobilization of biopolymers to develop optical biosensors. We recently immobilized mercury and lead binding ... -
Visual optical biosensors based on DNA-functionalized polyacrylamide hydrogels
Khimji, Imran; Kelly, Erin Y.; Helwa, Youssef; Hoang, Michael; Liu, Juewen (Elsevier, 2013-12-15)Biosensors are devices that can provide quantitative or semi-quantitative analytical information about target molecules, where molecular recognition is based on biomolecular interactions. In recent years, DNA has emerged ...