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Description:
Electron paramagnetic resonance (EPR) is a magnetic resonance technique that detects unpaired electrons through their quantum transitions in the presence of a magnetic field. Electrons behave as tiny bar magnets in a magnetic field because of their spin. EPR spectroscopy is the only method to provide direct detection of the presence of unpaired electrons in matter. Technological development makes EPR a powerful technique in many fields: in biology to study the proteins and nucleic acids, in medical diagnostics through magnetic resonance imaging (MRI) and drug design, in the fuel and food industry to provide quality tests and in material science to detect defects and magnetic properties. We have been developing the first unique high field/frequency EPR (HFEPR) spectrometer in Czechia to perform experiments in the frequency range of 85-1100 GHz and high magnetic field up to 16 T.
In this project, we will introduce you to our modern equipment in the EPR laboratory where you will be able to prepare samples containing unpaired electrons. X-band and HFEPR spectrometers will be used for identification of oxygen and to probe the antioxidant activity in different elements as well as their interaction with local environment. You will be introduced to more advanced projects on molecular magnets and solid-state spin qubits for spintronics and future quantum computers.
Topic in points:
- Introduction to magnetic resonance and applications
- Sample preparation in liquid and pellet forms
- Quantitative analysis of antioxidant activity using X-Band Spectrometer and comparison with simulated spectrum by EasySpin
- Determination of the influence of oxygen on prepared samples using HFEPR Spectrometer
Supervisors:
