Fig. 1
From: Non plasmonic semiconductor quantum SERS probe as a pathway for in vitro cancer detection
Formation and characterization of the ZnO-based semiconductor quantum probe. a Formation of ZnO-based semiconductor quantum probe for SERS and nano-dendrite platform for cell adhesion by femtosecond laser interaction. b FESEM reveals 3D mesh-like assemblies of the quantum probe. Scale bar = 500 nm. c HRTEM shows the presence of hexagonal and cubical particles with stacking defaults and irregular edges, scale bar = 20 nm. Lattice spacing “d” indicating the presence of zinc and wurtzite/zinc blende phases of ZnO, scale bar = 5 nm. The elemental analysis revealed the presence of elemental variation of zinc and oxygen in small (Zn 62.46%, O2 37.54%), medium (Zn 55.82%, O2 44.18%) and large (Zn 58.7%, O2 41.3%) probes. “x” Axis displays the size bins and “y” axis displays frequency. Particle size distribution charts include error bars in S.D. Total n = 311 samples were measured. Quantum probe was classified into small, medium, and large probes
