Surface Plasmon Resonance Sensor Based on Perovskite Layer and Bimetallic Silver-gold for the Detection of Human Breast Cancer

Cancer is a leading cause of morbidity and mortality worldwide. Millions of individuals throughout the world suffer from cancer and other illnesses. This is a leading cause of human death each year. Huge efforts were made to develop simple, precise, and cost-effective technologies for detecting various diseases. As the detection of cancer and diabetic disorders has received a lot of interest in the field of biosensing, several methods have been developed to detect these diseases with high accuracy. This study investigates the possibility of surface plasmon resonance (SPR) for human breast cancer detection utilizing a bimetal silver with gold in permutation and hybrid organic–inorganic halide perovskites (MAPbX₃ ≡ CH₃NH₃PbY₃, with M = CH₃, A = NH₃, and Y = Br) sensor that operates at a specific wavelength of 633 nm. Early cancer identification is critical for improving patient outcomes, and SPR presents a promising path for label-free, sensitive detection of cancer biomarkers.