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In this study, we demonstrate a simple method to identify microalgae by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) using three different substrates: HgSe, HgTe, and HgTeSe nanostructures. The fragmentation/ionization processes of complex molecules in algae varied according to the heat absorption and transfer efficiency of the nanostructured matrices (NMs). Therefore,...
We have developed a simple, colorimetric and label-free gold nanoparticle (Au NP)-based probe for the detection of Pb 2+ ions in aqueous solution, operating on the principle that Pb 2+ ions change the ligand shell of thiosulfate (S 2 O 32− )-passivated Au NPs. Au NPs reacted with S 2 O 32− ions in solution to form Au + ·S 2 ...
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