Development of advanced laser processes for surface modification of functional electrodes in Liquid Chromatography-Mass Spectrometer (LC-MS) instrumentation

  • Anupam Ghosal (Speaker)

Activity: Talk or presentationOral presentationResearch

Description

The modification of the surface properties, of functional engineering components, plays a significant part in optimising their functional performance. The surface chemistry, texture and crystal structure can influence the absorption and electronic properties of the surface, adhesive and wetting forces acting at a material interface. Therefore, multiscale surface modifications methods available to affect such modifications are critical factors in the development of new functional electrodes in LC-MS instrumentation.
The unique and novel interaction of tailored laser light with a material can lead to permanent changes in a material’s surface properties not easily achieved by other means. Laser irradiation has been shown to induce changes to the local chemistry, the local crystal structure and the local morphology, and this is expected to affect how an electrode will behave in an LC-MS application. In particular, short and ultrashort-pulse laser irradiation offers the ability to precisely deposit extremely large peak intensities into a material. Furthermore, very high spatial resolutions on or near the surface can be obtained through controlled laser parameters and using novel optical techniques such as vector field modulation. The tailored laser-material interactions lead to extremely accurate control of the local surface properties relative to the bulk and other regions on the surfaces.
The research will present recent results on ultrashort-pulse laser micro-texturing of electrodes and its impact on the electrode behaviour.
Period24 Jun 2021
Event titleCDT Student Conference 2020 for Materials in Demanding Environment: M4DE Summer Symposium 2020
Event typeConference
LocationManchester, United KingdomShow on map
Degree of RecognitionNational