A Peptide-Based Trap for Metal Ions Studied by Electron Paramagnetic Resonance
نویسندگان
چکیده
Peptide-based materials provide a versatile platform for sensing and ion sequestration since peptides are endowed with stimuli-responsive properties. The mechanism of molecular is often based on peptide structural changes (or switching), caused by the binding target molecule. One scope applications selection specific analyte, which may be achieved adjusting structure site. Therefore, exact knowledge properties 3D-structure in ‘switched’ state desirable tuning detection further construction. Hence, here we demonstrate performance Electron Paramagnetic Resonance (EPR) spectroscopy identification metal antimicrobial trichogin GA IV. Na(I), Ca(II), Cu(II) ions were probed as analytes to evaluate impact coordination number, ionic radii, charge. Conclusions drawn EPR line literature data, where other spectroscopic techniques exploited study peptide-ion interactions IV, switch from an extended helix hairpin structure, wrapped around upon divalent cations was proposed.
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2022
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors10020071