The integrated mFold-like algorithm calculates Gibbs free energy (ΔG) for hairpins and homodimers, eliminating problematic structures before synthesis.
Primer Express is a commercial software package developed (and now maintained) by Thermo Fisher Scientific (formerly Applied Biosystems). It is designed specifically for:
| Feature | Description | |---------|-------------| | Primer & Probe Design | Automated design of PCR primers, TaqMan probes, and other oligonucleotides for quantitative real‑time PCR (qPCR) assays. | | Assay Optimization | Suggests optimal amplicon length, melting temperature (Tm), GC content, and checks for secondary structures. | | Compatibility | Works seamlessly with ABI 7500/7500‑Fast, QuantStudio, and other Thermo Fisher qPCR instruments. | | Batch Processing | Allows high‑throughput design for dozens to thousands of target sequences. | | Export Options | Generates spreadsheets, CSV files, and ready‑to‑order worksheets. | primer express 30 1 registration code top
Version 3.0 (sometimes referred to as “Primer Express 30”) introduced a modern user interface, improved algorithmic accuracy, and better integration with Thermo Fisher’s cloud‑based data management tools.
A web-based version of the classic Primer3. Excellent for routine PCR and basic qPCR. No TaqMan probe design though. A web-based version of the classic Primer3
| Component | Minimum Requirement | Recommended | |-----------|--------------------|-------------| | Operating System | Windows 7 (64‑bit) or later (Windows 10/11) | Windows 10/11 (64‑bit) | | CPU | 1 GHz (Intel/AMD) | 2.5 GHz or faster | | RAM | 2 GB | 8 GB or more | | Disk Space | 500 MB free (install) | 2 GB free (including sample data) | | Display | 1024 × 768 | 1920 × 1080 or higher | | Additional | .NET Framework 4.5 (or later) | .NET Framework 4.8 |
Tip: The software is not natively supported on macOS or Linux. If you need to run it on those platforms, use a Windows virtual machine (VM) or a dual‑boot configuration. Tip: The software is not natively supported on
Using pirated software violates the ethical standards of scientific research. Many journals now require declaration of software licensing. Fabricating or hiding software sources can lead to retractions.