1.
Opt Lett
; 40(1): 5-8, 2015 Jan 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25531594
RESUMO
We demonstrated feasibility of super-resolution imaging through high-index microspheres embedded in transparent elastomers. We performed imaging, with resolution improvement by a factor of two, by using implanted barium titanate glass microspheres (diameters â¼30-150 µm and refractive index â¼1.9-2.1) in a thin film of polydimethylsiloxane elastomer placed over the specimen. Microsphere-assisted imaging technique is a promising candidate for applications in cancer research. As a proof-of-principle, we used microsphere-assisted imaging technique for the observation of radiation-induced γ-H2AX foci formation in U87 human glioblastoma cells irradiated by clinical proton beams.