Protein A - 40nm Gold Conjugate

Protein A - 40nm Gold Conjugate for gold nanoparticle labelling

Protein A - 40nm Gold Conjugate is a gold nanoparticle conjugate for detecting compatible immunoglobulins through Protein A binding in Immunoblotting, Light Microscopy and Electron Microscopy. It helps researchers evaluate target fit, assay readout and control strategy before selecting a related label or antibody format.

Workflow value

The colloidal gold label provides a permanent, electron-dense and optically visible signal for method development and routine detection workflows. This mid-sized gold particle is a practical choice when both particle visibility and access to the labelled target must be balanced.

Use-case guidance

• Fits workflows that require clear Protein A detection and a reagent choice that can be documented consistently.
• Useful when the primary antibody class is compatible with Protein A binding and a species-independent detection strategy is desired.
• Include matched negative controls and optimize blocking to separate true target-associated signal from nonspecific particle binding.

Reference AC-40-05-05 in protocols, purchasing notes and internal reagent libraries when matching this product to your chosen assay. For reproducible work, document the selected reagent, sample matrix and detection workflow alongside the catalog entry.