Organ-on-a-chip a biochip has been created by researchers at cellasys. Researchers are working towards building a multi-channel 3D microfluidic cell culture system that compartmentalizes microenvironments in which 3D cellular aggregates are cultured to mimic multiple organs in the body. Most organ-on-a-chip models today only culture one cell type, so even though they may be valid models for studying whole organ functions, the systemic effect of a drug on the human body is not verified. In particular, an integrated cell culture analog (µCCA) was developed and included lung cells, drug-metabolizing liver and fat cells. The cells were linked in a 2D fluidic
Proper adjective Proper adjective In English orthography, the term proper adjective is sometimes applied to adjectives that take initial capital letters, and the term common adjective to those that do not. For example, a person from Boston is Bostonian. "Bostonian" is a proper adjective. These terms are used informally only; they are not used by grammarians or linguists. The term "proper noun" denotes a noun that, grammatically speaking, identifies a specific unique entity; for example, "England" is a proper noun, because it is a name for a specific country, whereas "dog" is not a proper noun; it is, rather, a "common noun"