Photochromism is defined as a reversible transformation of a single chemical species being induced in one or both directions by absorption of electromagnetic radiation, with two states having different distinguishable absorption spectra. Ideally, the chemical species must be thermally stable and possess excellent durability for reversible photochromic reactivity.
Hydrogel capsules have been used to encapsulate cells since they can allow facile diffusion of oxygen and nutrients to the cells. Such compositions have been developed as potential therapeutics for a range of diseases including type I diabetes, cancer, and neurodegenerative disorders such as Parkinson’s.
Wireless power transfer (WPT) based on the magnetic resonance and near-field coupling of two loop resonators was reported by Nicola Tesla a century ago. At present, there is a lack of research examining the problems arising from the receiver which also has big impact on the performance of the entire system.
Optical coherence tomography (OCT) is a non-contact and non-invasive imaging technique to obtain fine resolution and cross-sectional images of tissue structure on the micron scale (µm), such as the retina, cornea, anterior chamber of eyes, cell imaging, tissue characterization, live blood flow imaging, etc.
The Hole Transport Layer (HTL) provides electron mobility in organic lighting devices (OLED). PEDOT:PSS is conventionally an ideal HTL material for testing OLED performance because it is highly electro-conductive and transparent in the visible light spectrum. However, PEDOT:PSS has limited lifetime for production environment due to its acidic property and causes corrosion of the ITO anode.
Currently, there are two major methods of making broadband LED light sources: 1. Phosphors for “color down” conversion; and 2. Multi-chip LEDs. Phosphorescent materials that emit light when exposed to certain wavelengths of radiation are traditionally used for color conversion in light-emitting diodes (LEDs).