#Portable Nanosensors Help Early Diagnosis of Breast cancer Tumors The nanosensor will be able to help the early diagnosis of breast cancer tumors even at very tiny dimensions after the completion of tests and being produced mass. Common devices of imaging have some problems such as being expensive and time consuming, and they create stress in patients. The aim of the research was to facilitate the diagnosis of cancer tumors, including breast cancer, without the need for advanced clinical devices. A portable nanosensor was designed and simulated in this research for the early and easy diagnosis of breast tumors. The nanosensor consists of plasmonic nanoparticles that are placed at regular distance from each other. Based on the results of the modeling the sensor is very sensitive to changes in electromagnetic fields that are dispersed with different tissues (normal and tumor. The role of nanosensor between body surface and the detector is to strengthen the signal and taking samples through plasmonic effects of nanoparticles. The throughputs of waves are different through natural and tumor tissues. Therefore, the interaction of tissues with electromagnetic waves created by a similar electrical field ends in different results. It means a non-consistency happens in the profile received from the interaction of emitted light and various healthy and cancer tissues. The meaningful signal is a tool for the detection of tumor tissue e
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