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Lipid Transfection minor

Orange Background Fluorescence with GFP

Symptom
Light granular orange background fluorescence observed after GFP transfection with Lipofectamine 2000
Common Causes
  1. 1 Orange fluorescence associated with lipid/DNA complexes
  2. 2 Common artifact from cationic lipid transfection
  3. 3 Varies depending on cationic lipid reagent used
Solutions
  1. 1 Recognize this as normal artifact not related to GFP expression
  2. 2 Background does not interfere with transfection results
  3. 3 No action needed - proceed with analysis as planned
Related Video (2)
Bilibili (China-Accessible Mirrors) ★ 85
Cell Transfection Operation: Common Mistakes Avoided
"Directly addresses common pitfalls and troubleshooting, including reagent handling that can reduce lipid/DNA complex background."
Bilibili (China-Accessible Mirrors) ★ 75
Cell Transfection: Definition and Operational Procedures
"Comprehensive hands-on protocol with theory and steps to understand correct transfection conditions and avoid background fluorescence."
Source: thermofisher.com ↗
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