Figure 2
From: Isolation, characterisation and detection of breath-derived extracellular vesicles
(A) SPR response from injection of EBC EVs onto a surface functionalised with InP/ZnS-AB; (B) Nyquist plots of impedance spectra obtained in a solution comprised of 10 mmol/L PBS and 150 mmol/L NaCl at pH 7.4 containing 5 mmol/L Fe(CN)63−/ Fe(CN)64−. (C) SPR response of the control surface functionalised with no InP/ZnS-AB. (D) EIS calibration curve showing the average change in charge transfer resistance (\(\Delta \hbox {R}_{\mathrm{et}}\)) for the log of each concentration of EV from the \(\Delta \hbox {R}_{\mathrm{et}}\) value for Apt1 immobilised to the surface. Data also includes the control points from Supplementary table S-6 for better visualisation. Note that EBC EVs is exhaled breath condesate extracellular vesicles and MPA is mercaptoproprionic acid. Error bars are in accordance with the standard deviation of three separate measurements.
