Protein L - 100nm Gold NanoUrchinsGold nanoparticle core size: 100nm Absorbance (lambda max.): 670nm Optical density: Available at OD=3 and OD=10, select in product options Conjugated protein: Recombinant Protein L, from P. magnus produced in E. coli Working dilution: 1: 1 1: 100 Supplied in: 0. 5XPBS (pH 7. 4), 20% glycerol (v v), 1% BSA Applications Protein L gold nanourchin conjugates are suitable for use in immunoblotting, light microscopy, and electron microscopy applications.