Nano science and nano technology are the critical disciplines of the present influencing the miniaturization concept in analytical chemistry. The development of autonomous nano and micro motors has seen growing interest due to potential applications in both biomedical and environmental fields. Particular attention has been given to chemically powered catalytic micro-/nanomotors, based on different compositions and structures moving autonomously in the presence of hydrogen peroxide fuel (H2O2). The catalytic micro-and nanomotors can be prepared using different methods. Plasma method is one of the advanced methods to prepare micro-, nanomotor systems. This method is a solvent-free (dry), nontoxic and single-step process. In this work, the plasma coating methods were used to obtained a series of micro-, nanomotor systems for miRNA sensor applications. Materials (WO3, W5O14 and Fe3O4) were modified with different dopant agents using rf rotating plasma under optimized conditions. RF rotating modified materials were coated with Platinum (Pt) by RF Magnetron Sputtering method to obtain a series micro-nanomotors. Characteristic properties of all micromotors were investigated by using SEM-EDS analysis and NIKON Eclipse Optic LV100ND Microscopy. The effect of fuel concentration (H2O2) and surfactant (Sodium Dodecyl Sulfate (SDS)) on the speed of micromotors were investigated. Moreover, potential applications of these motors were explored for the detection of breast cancer as miRNA sensor.

Plasma modified catalytic micromotors

253rd National Meeting (2017)

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