PHE_Scientific-Equipment for counting virus particles & nanometre sized objects

Public Health England (PHE) seeks to appoint a provider of an instrument to be used for the biophysical characterisation of virus particles, virus-like particles, exosomes and other biological, nanometer-sized particles present in aqueous suspension. These particles may be cell derived or recombinant in nature and will be structurally composed primarily of phospholipid or protein. These particles will not necessarily contain nucleic acid and therefore any technology that relies on labelling or measurement of nuclei...