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Coffee
Protocol
2026-06-03

DPPH Free Radical Scavenging Assay

Quantify antioxidant capacity by measuring the reduction of the stable DPPH radical (purple → yellow) at 517 nm. Covers both cuvette and microplate formats with Vitamin C standard curve.

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Site
2026-06-03

Download & print protocols as checklists

  • Print any protocol as a clean single-page checklist (Materials, Equipment, Procedure) straight from your browser.
  • Download any protocol as a Markdown checklist for offline use or AI assistants.
Review
2026-06-03

agent-skills

23 production-grade engineering skills for AI coding agents by Addy Osmani (Google Chrome). Covers the full Define-to-Ship lifecycle with Doubt-Driven Development for adversarial self-verification, Anti-rationalization Tables to prevent shortcutting, and 3 specialist personas for parallel review. Pure Markdown, zero dependencies. MIT licensed.

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Review
2026-06-03

ARIS (Auto-Research-In-Sleep)

Autonomous ML research framework using cross-model adversarial review — Claude Code executes experiments while GPT reviews and finds weaknesses. Covers the full research lifecycle from literature review to submission-ready manuscript. Requires dual LLM subscription. MIT licensed, Markdown-only, zero framework dependencies.

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