Light guiding in biological tissue due to scattering

A Kienle, R Hibst - Physical review letters, 2006 - APS
… We report a pronounced light guiding effect in cubes of human dentin that … that light guiding
is due to scattering by the tissue’s microstructure. Exploiting this concept, light can be guided

Lightguiding biomaterials for biomedical applications

S Shabahang, S Kim, SH Yun - Advanced functional materials, 2018 - Wiley Online Library
… h) An inch-long jellyfish emitting bioluminescence light guided through its transparent tissues.…
For biological tissues with a typical water content W ≈ 0.7, the RI would be ≈1.38. Actual …

Guiding lights: tissue bioprinting using photoactivated materials

M Lee, R Rizzo, F Surman, M Zenobi-Wong - Chemical Reviews, 2020 - ACS Publications
Light can be used as a trigger to drive the formation or the degradation of chemical … biological
properties. With resolution and construct size ranging from nanometers to centimeters, light-…

Printed degradable optical waveguides for guiding light into tissue

J Feng, Y Zheng, S Bhusari, M Villiou… - Advanced functional …, 2020 - Wiley Online Library
… We present printable formulations of PEGDA-DTT with sufficient light guiding performance
in air (0.1–0.4 dB cm −1 ) and in tissue (0.25–0.7 dB cm −1 ) for activating biological processes…

Printed soft optical waveguides of PLA copolymers for guiding light into tissue

J Feng, Q Jiang, P Rogin, PW de Oliveira… - … applied materials & …, 2020 - ACS Publications
… (A) Scheme of the biological scenario developed to test the suitability of the printed
waveguides to activate biological processes across the tissue. (B) Fluorescence image of L929 …

Synthetic engineering of spider silk fiber as implantable optical waveguides for low-loss light guiding

X Qiao, Z Qian, J Li, H Sun, Y Han, X Xia… - … applied materials & …, 2017 - ACS Publications
… Moreover, recombinant spider silk optical waveguide can meet the demand to guide and
efficiently deliver light through biological tissue. In addition, recombinant spider silk optical …

Soft and stretchable optical waveguide: light delivery and manipulation at complex biointerfaces creating unique windows for on-body sensing

C Wu, X Liu, Y Ying - ACS sensors, 2021 - ACS Publications
… (B) Light guided through and scattered from a flexible hydrogel fiber; the inset shows a typical
… of optical sensing in vivo through experiments of light transmission in biological tissues. …

Nonlinear photoacoustic waves for light guiding to deep tissue sites

A Ishijima, U Yagyu, K Kitamura, A Tsukamoto… - Optics Letters, 2019 - opg.optica.org
… However, focusing/delivering light inside a biological tissue is a major challenge that
impedes the application of light in biological tissues. This issue is mainly derived from the optical …

Focusing light inside live tissue using reversibly switchable bacterial phytochrome as a genetically encoded photochromic guide star

J Yang, L Li, AA Shemetov, S Lee, Y Zhao, Y Liu… - Science …, 2019 - science.org
… encoded guide star. Here, we introduce a genetically encoded photochromic guide star (GePGS…
phytochrome (RSBP)—into biological tissue to provide feedback for focusing light inside …

Light-guiding hydrogels for cell-based sensing and optogenetic synthesis in vivo

M Choi, JW Choi, S Kim, S Nizamoglu, SK Hahn… - Nature …, 2013 - nature.com
… Despite the great promise of light-mediated, cell-based sensing and therapy, one of the …
the high optical loss in biological tissue due to scattering and absorption 12 . In soft tissue, the 1/…