Table 1: Details of manual staining protocols

Protocol Staining Time (Stain Used) Washing Staining Time (Stain Used) Washing
UA 20 min (2 % UA) ddH2O 20 min (Lead Citrate) ddH2O
UAR 30 min (1 part UAR with 4 parts ddH2O) ddH2O No
MUAR 5 min (1 part UAR with 4 parts ddH2O) ddH2O 5 min (Lead Citrate) ddH2O

UA: Uranyl Acetate, UAR: Uranyl Acetate Replacement, MUAR: Modified Uranyl Acetate Replacement, ddH2O: double-distilled water