Main article: Nicotinic acetylcholine receptors. The nAChRs are ligand-gated ion channels, and, like other members of the cys-loop ligand-gated ion channel superfamily, are composed of five protein subunits symmetrically arranged like staves around a barrel.
Acrylonitrile butadiene styrene, otherwise known as ABS plastic, is a lightweight material popularly used in children's toys. There are two types: one suited for extrusion molding and one for injection molding. LEGO blocks are made from ABS plastic because it is so light and durable. Continue Reading.
Its outstanding material qualities made ABS become one of the most popular plastics materials and an essential element in every day life: 1  flexible design. 2  excellent surface quality. 3  brilliant and deep colours. 4  attractive feel and touch. 5  dimensional stability. 6  chemical resistance. 7  impact resistance.ts outstanding material qualities made ABS become one of the most popular plastics materials and an essential element in every day life: 1  flexible design. 2  excellent surface quality. 3  brilliant and deep colours. 4  attractive feel and touch. 5  dimensional stability. 6  chemical resistance. 7  impact resistance.