Figure 2: Characterisation of gold nanostars (AuNS) and nanosensitisers (NS): Figure 2 shows (A) the UV-Vis absorption spectra of multi-branched gold nanostars (AuNS); (B) the UV-Vis absorption spectra nanosensitisers NS1 and NS1-EGFR; (C) the UV-Vis absorption spectra NS2 and NS2-EGFR; (D) the fluorescence emission spectra for NS1 and NS2. The relevant emission peak for hypericin (590 nm) is seen in the spec tra for NS1 and that for chlorin e6 (668 nm) in NS2; (E) Raman spectra for NS1 and (F) NS2 excited at 785nm laser excitation exhibiting characteristic spectral peaks of DTTCi; TEM (G) and HR-TEM (H, I) images of synthesized 30-50 nm AuNS.