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  2. Colloidal gold - Wikipedia

    en.wikipedia.org/wiki/Colloidal_gold

    The size difference causes the difference in colors. Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. [ 1 ] The colloid is coloured usually either wine red (for spherical particles less than 100 nm) or blue-purple (for larger spherical particles or nanorods). [ 2 ]

  3. Immunogold labelling - Wikipedia

    en.wikipedia.org/wiki/Immunogold_labelling

    Immunogold labeling or immunogold staining (IGS) is a staining technique used in electron microscopy. [2] This staining technique is an equivalent of the indirect immunofluorescence technique for visible light. Colloidal gold particles are most often attached to secondary antibodies which are in turn attached to primary antibodies designed to ...

  4. Colloidal gold protein assay - Wikipedia

    en.wikipedia.org/wiki/Colloidal_gold_protein_assay

    The colloidal gold protein assay is a highly sensitive biochemical assay for determining the total concentration of protein in a solution (~0.1 ng/μL to 200 ng/μL). [1] It was first described in 1987 by two groups who used commercially available "Aurodye" colloidal gold solutions. [2] [3] Notably, the formulation of Aurodye changed between ...

  5. Polyvalent DNA gold nanoparticles - Wikipedia

    en.wikipedia.org/wiki/Polyvalent_DNA_gold_nano...

    Polyvalent DNA gold nanoparticles. Polyvalent DNA gold nanoparticles, now more commonly referred to as spherical nucleic acids, [1] (Fig. 1) are colloidal gold particles densely modified with short (typically ~30-mer or less), highly oriented, synthetic DNA strands. They were invented by Chad Mirkin et al. at Northwestern University in 1996. [2]

  6. Gold nanoparticles in chemotherapy - Wikipedia

    en.wikipedia.org/wiki/Gold_nanoparticles_in...

    Gold nanoparticles in chemotherapy and radiotherapy is the use of colloidal gold in therapeutic treatments, often for cancer or arthritis. Gold nanoparticle technology shows promise in the advancement of cancer treatments. Some of the properties that gold nanoparticles possess, such as small size, non-toxicity and non-immunogenicity make these ...

  7. Immune electron microscopy - Wikipedia

    en.wikipedia.org/wiki/Immune_electron_microscopy

    Immune electron microscopy. Electron micrograph of gold nanoparticles attached to rotaviruses. The small dark circular objects are gold nanoparticles coated with a monoclonal antibody specific for rotavirus protein VP6. Immune electron microscopy (more often called immunoelectron microscopy) is the equivalent of immunofluorescence, but it uses ...

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