| [ |
| { |
| "title": "Optimization of Annealing Temperature for AT-Rich Primer Pairs", |
| "abstract": "We systematically evaluated annealing temperatures between 50 and 62°C for primers with high AT content. Best amplification and specificity were achieved in the 55–58°C range, with 57°C yielding optimal balance for most templates.", |
| "keywords": ["annealing", "AT-rich", "temperature", "primers", "PCR"], |
| "recommendations": "AT-rich primers: use annealing 55–58°C. Avoid >60°C to prevent poor yield." |
| }, |
| { |
| "title": "Cycle Number and Fidelity in Standard PCR", |
| "abstract": "Cycle counts from 25 to 40 were compared for amplicon yield and error rate. For most targets, 30–35 cycles gave high yield without excessive nonspecific product. Conservative protocols favor 28–32 cycles.", |
| "keywords": ["cycles", "fidelity", "yield", "PCR", "amplification"], |
| "recommendations": "High-fidelity applications: 30–35 cycles. Use 25–28 for long amplicons." |
| }, |
| { |
| "title": "Reagent Ratios and Primer Dimer Formation", |
| "abstract": "Conservative versus aggressive primer-to-template ratios were tested across 200 reactions. Conservative ratio reduced primer dimers and improved specificity in 78% of cases; aggressive ratio increased yield when template was limiting.", |
| "keywords": ["ratio", "conservative", "aggressive", "primer dimer", "specificity"], |
| "recommendations": "Conservative ratio for long amplicons and low template; aggressive when maximizing yield." |
| }, |
| { |
| "title": "Annealing Temperature Gradients for Multiplex PCR", |
| "abstract": "Gradient optimization showed that 65°C annealing worked well for GC-rich primers, while 55–58°C suited AT-rich primers. Middle range 60–62°C was a compromise with lower peak efficiency.", |
| "keywords": ["gradient", "GC-rich", "AT-rich", "multiplex", "annealing"], |
| "recommendations": "GC-rich primers: try 63–67°C. AT-rich: 55–59°C. Avoid 60–62°C as default." |
| }, |
| { |
| "title": "Extension Temperature and Cycle Count Interaction", |
| "abstract": "Extension at 72°C with 25 versus 35 cycles was compared. Fewer cycles (25–30) reduced background; 32–35 cycles improved sensitivity for low-copy targets. Combined with lower annealing (56–58°C), 32 cycles was optimal in our assay.", |
| "keywords": ["extension", "cycles", "sensitivity", "background", "72C"], |
| "recommendations": "For difficult templates: annealing 56–58°C, 32 cycles. Reduce to 28–30 if nonspecific bands appear." |
| } |
| ] |
|
|
