1.  BioPure Silver nanoparticles, 20nm diameter, Citrate Capped, 4g for a Qty of 1.  Citrate Stabilized (in 2MM citrate)

2.  BioPure Silver nanoparticles, 20nm diameter, PVP Capped, 4g for a Qty of 1.  Capped with polyvinylpyrrolidone (in water)

3.  BioPure Silver nanoparticles, 110nm diameter, Citrate Capped, 4g for a Qty of 1.  Citrate Stabilized (in 2mM citrate)

4.  BioPure Silver nanoparticles, 110nm diameter, PVP Capped, 4g for a Qty of 1.  Capped with polyvinylpyrrolidone (in water)

These materials must meet the following specifications.

a.  Should meet the size specs as measured by transmission electron microscopy, within 105 standard deviation.

b.  Silver concentration should be 1.0 mg/ml, within 10% standard deviation.

c.  Endotoxin contamination must be below 2.5EU/ml utilizing Pyros Kinetix Turbidimetric procedure.

d.  Must be able to produce a 4g quantity of each material in a single batch (i.e. must not pool smaller quantities to total 4g)

e.  Materials will be provided as aliquots in polycarbonate bottles with screw caps.  Aliquots for each of the four (4) materials will be provided as follows:
  ALIQUOT SIZE (volume)                     QUANTITY
         10ml                                              50
         25ml                                              40
         50ml                                              50

This procurement is being solicited for award by SAIC-F under its contract #HHSN261200800001E for Operations and Technical support at the National Cancer Institute-Frederick, a federally funded research and development center.  SAIC-F is the prime contractor charged with operations and technical support of the government owned contractor operated (GOCO) facility. 

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