Pulsed field gradient nuclear magnetic resonance (NMR) is used to estimate the size of quantum dots (QDs) produced in a simple, fast, small-scale synthesis. This upper-division laboratory experiment teaches the basics of QD synthesis and pulsed field gradient NMR, a powerful technique for measuring diffusion coefficients in solution. The diffusion…

Poor performance of students in chemistry shows that they are having difficulties in learning, mastering the content, and applying what they have learned in examinations. The purpose of this study was to find out the difference in (a) retention of information by students taught nuclear chemistry using the culturo-techno-contextual approach (CTCA)…

One of the challenges humans face is making collective decisions with regards to controversial issues related to science, namely socio-scientific issues (SSIs). Genetic modification, nuclear energy, experimental drugs, 5G technology are a few examples of SSIs. Some of the concerns posed by such issues are compromise to privacy and identity, threat…