How Small Is Cyanophage P-SSP7? 60 nm Compared to Scale

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Cyanophages like P-SSP7 infect the ocean's most abundant photosynthetic bacterium, Prochlorococcus, shaping marine ecosystems.

Source: PNAS structural studies; ViralZone, SIB Swiss Institute of Bioinformatics

Micro World

Name	Size	Compared with Cyanophage P-SSP7
Silver Nanoparticle	40 nm	0.67×
Fibrinogen Molecule	45 nm	0.75×
Silicon Nanowire	50 nm	0.83×
West Nile Virus	50 nm	0.83×
Human Papillomavirus	55 nm	0.92×
Cyanophage P-SSP7	60 nm	this page
Silica Nanoparticle	100 nm	1.7×
Titanium Dioxide Nanoparticle	100 nm	1.7×
Lassa Virus	100 nm	1.7×
Hantavirus	100 nm	1.7×

Test your sense of scale

Which is bigger: Cyanophage P-SSP7 or Silicon Nanowire?

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