Figure 1
From: Towards rainbow portable Cytophone with laser diodes for global disease diagnostics
In vivo rainbow Cytophone diagnostic platform. (a) The principle of two-color Cytophone; insets show a schematic of iRBC structure (top, left) and a photothermal (PT) image of an actual iRBC (bottom, right) with Hz peaks. (Adobe Fireworks CS5, www.adobe.com) (b). Time-color coding of two high-repetition-rate laser pulses with different wavelengths of λ1 and λ2—(top)—for spectral identification of iRBCs (middle) in the background of synchronized (e.g., from pigmented skin) and unsynchronized false signals (bottom). (c) Absorption spectra of melanin, nRBCs, Hz, indocyanine green (ICG), and magnetic beads14,15,16,17,18,19,20,21. (d) PA traces with positive and negative PA contrast against a blood background created by many nRBCs and circulating blood clots (CBCs).
