Sentences with phrase «outer envelope called»
These initial, ineffective antibodies target regions of the virus's outer envelope called gp41 that quickly mutates, and the virus escapes being neutralized.
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«As scientists, we already knew that male butterfly ejaculates were three-fold complex structures we call spermatophores — composed of an outer envelope, an inner matrix of fluids and a bolus of sperm,» says UC's Morehouse.
The tetrapod - shaped zinc - oxide nanoparticles, called ZOTEN, have negatively charged surfaces that attract the HSV - 2 virus, which has positively charged proteins on its outer envelope.
The envelope of Gram - negative bacteria, such as E.coli, is composed of two barriers - the so called inner and outer cell membranes.