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. Author manuscript; available in PMC: 2024 Nov 6.
Published in final edited form as: Angew Chem Int Ed Engl. 2023 Sep 27;62(45):e202312519. doi: 10.1002/anie.202312519

Figure 3.

Figure 3.

MS characterization of structural changes of Aβs after LED irradiation. A) Schematic diagram of the different modifications (red spheres) of Aβ40 during the light-mediated oxidation, and trypsin cleavage site (red arrows). B) The possible modifications of amino acids in the presence of 1O2. C) Mass spectra of oxidized monomeric Aβs with different charges. D) MS of oxidized oligomeric Aβs. E) MALDI-TOF MS of oligomeric Aβs and their oxidized products. F) MS of oxidized Aβ29-40. G) MALDI-MS of oxidized Aβ6-16 fragment.