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Western Blot Immunodetection minor

Uneven or Irregular Blot Appearance

Symptom
Membrane shows fingerprints, fold marks, or forceps imprints creating irregular patterns. Uneven signal distribution not related to protein bands.
Common Causes
  1. 1 Touching membrane with bare hands transfers oils and proteins
  2. 2 Folding or creasing membrane during handling
  3. 3 Forceps with sharp tips damage or mark membrane
  4. 4 Membrane drying unevenly during incubation
Solutions
  1. 1 Always wear powder-free gloves when handling membranes
  2. 2 Use blunt-end stainless steel forceps for membrane manipulation
  3. 3 Handle membrane gently; avoid folding or creasing at any step
  4. 4 Use sufficient reagent volumes to completely cover membrane during all incubations; ensure membrane remains wet
Related Video (3)
Cell Signaling Technology ★ 92
Western Blot Troubleshooting Guide
"Dedicated troubleshooting guide directly addressing common Western blot problems including membrane handling artifacts and irregular blot appearance."
Bilibili (China-Accessible Mirrors) ★ 78
Reliable and Reproducible Western Blot Results
"Technical webinar emphasizing proper experimental technique and reproducible results, likely covering correct membrane handling procedures to avoid contamination."
Bilibili (China-Accessible Mirrors) ★ 72
Western blot hands-on: Protein extraction through detection
"Hands-on protocol with explicit emphasis on troubleshooting common pitfalls, including likely coverage of membrane handling best practices."
Source: sigmaaldrich.com ↗
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