Geometry-Dependent Spectroscopic Contrast in Deep Tissues.

ABSTRACT: Nano-structures of biological systems can produce diverse spectroscopic effects through interactions with broadband light. Although structured coloration at the surface has been extensively studied, natural spectroscopic contrasts in deep tissues are poorly understood, which may carry valuable information for evaluating the anatomy and function of biological systems. Here we investigated the spectroscopic characteristics of an important geometry in deep tissues at the nanometer scale: packed nano-cylinders, in the near-infrared window, numerically predicted and experimentally proved that transversely oriented and regularly arranged nano-cylinders could selectively backscatter light of the long wavelengths. Notably, we found that the spectroscopic contrast of nanoscale fibrous structures wa

SUBMITTER: Ge X 

PROVIDER: S-EPMC6745491 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature