TrueBlack® and TrueBlack® Plus are hydrophobic in nature and quench lipofuscin autofluorescence mainly through hydrophobic interactions. They could therefore stain/bind to lipid structures and quench the fluorescence signal of BODIPY and other lipid droplet stains. Also, original TrueBlack® #23007 is used in 70% EtOH, which could interfere with lipid droplet morphology and affect staining. TrueBlack® Plus #23014, on the other hand, can be used in buffer instead of 70% ethanol, and may be more suitable for combining with lipid droplet staining. However, since the binding of TrueBlack® Plus is also dependent on hydrophobic interactions, we recommend testing TrueBlack® pre-treatment and post-treatment for compatibility with lipid droplet staining in your sample type.
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