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Biointerphases

Journal for Biophysical Chemistry

Figure 5 | Biointerphases

Figure 5

From: Probing the orientation of electrostatically immobilized cytochrome C by time of flight secondary ion mass spectrometry and sum frequency generation spectroscopy

Figure 5

ToF-SIMS peak intensity ratios calculated as the sum of intensities of secondary ions from cysteine (C 2 H 6 NS + ) divided by the sum of intensities of secondary ions from glutamic acid (C 4 H 6 NO + , C 4 H 8 NO 2 + ) and leucine (C 5 H 12 N + ) residues. Error bars represent the standard deviation across three analysis spots over two distinct samples.

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