Related Experiment Video
Updated: Jan 20, 2026

Training Synesthetic Letter-color Associations by Reading in Color
Published on: February 20, 2014
Preparation of Noniridescent Structurally Colored PS@TiO2 and Air@C@TiO2 Core-Shell Nanoparticles with Enhanced Color
Yu Xue, Fen Wang, Hongjie Luo1
1School of Materials Science and Engineering , Shanghai University , Shanghai 200444 , P. R. China.
Abstract:
Natural amorphous photonic crystals benefit from reflectance at selective wavelengths in some specific existing natural systems. Noniridescence from natural organisms has also attracted great interest for various examples in bionic colors, pigments, and paintings. Here, Air@C@TiO2 sphere was obtained by the first calcination of PS@TiO2 core-shell nanoparticles in nitrogen to ensure the integrity of the shell structure followed by low-temperature calcination to obtain the appropriate color saturation. We demonstrate that, compared with the prepared colored PS@TiO2/carbon black (CB) pigments, angle-independent hollow Air@C@TiO2 nanoparticles have enhanced color stability under the action of in situ synthesized carbon black (CB). Our results suggest that it is easy to change the color of these Air@C@TiO2 spheres by adjusting the sphere structure sizes, which have the potential to show visual signaling.
Related Concept Videos
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Color Vision
Changes in Skin Color: Clinical Perspectives
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
Stability of structures
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...

