Comparing how chloride salts change silver nanoparticle aggregation

had previously taken a summer course in material science, and had clear idea that he would like to work on a "modern" material in this Extended Essay in Chemistry. He investigated a wide range of substances (e.g., quantum dots, hydrogels), both through review of the primary literature (e.g., J. Chem. Ed., Science, and other periodicals we have a subscription to) and hands-on trial in the laboratory. initiated correspondence with of R University, the professor in the previous short course, during the initial phase, who suggested the possibility of modelling the nanoparticle sizes mathematically; would proceed to research the method himself. was organized, competent, and detail-oriented in the lab. The silver nanoparticles he looked at were fidgety to get right at the beginning, and did a good job in working out the technical difficulties. There were many samples generated, which he kept in meticulous order. discovered the limitations of our visible light spectrometer (and software) only half-way through, but managed to overcome both by intelligent workarounds. He supplemented this with mathematical fitting I modelling of the particles, and the result is a dense, complete treatment of his research topic. It had been a pleasure supervising . He is enthusiastic about this work, and clearly engaged. He attended all the meetings with full readiness, and completed drafts at agreed upon deadlines. This final draft is in line with previous drafts I have seen and authentically his own work.