A 3D-printed self-propelled, highly sensitive mini-motor for underwater pesticide detection

A three-dimensional (3D) printed self-repelled mini-motor (SRM) for convenience detection of underwater pollutant was proposed that used highly sensitive metal nanoparticles based colorimetric reaction. Rhodamine B covered gold nanoparticle (RB-AuNPs) was prepared firstly, based assay with colorimetric and fluorometric for detecting pesticides. With the aid of 3D printed SRM, both qualitative analysis and quantitative analysis results can be obtained under the river water. SRM can truly achieve the in-situ determination of pesticides in water.298