Ruchi Gupta studies the assembly of amyloid fibrils from small amyloidogeneic peptides such as hIAPP (human Iset amyloid polypeptide). The time course of the aggregation of hIAPP, which can be measured using a fluorescent probe, shows a characteristic sigmoidal behavior. The insets show transmission electron micrographs of the amyloid aggregates at the time points indicated.