Article Outline: Quantum Dots and Biotechnology
- Date: 5th November 2025
- Title: Quantum Dots and Their Applications in Biotechnology
- Speaker: Dr Matthew Booth
Structure (Condensed ~450 words)
1. Hook/Introduction
- MIT invisible vaccine tattoo
- What are quantum dots and why do they matter?
2. What Are Quantum Dots?
- Semiconductor crystals 2-10 nm across
- Colour depends on size (quantum confinement)
- Jack-in-the-box analogy: smaller = higher energy = bluer
3. Why This Beats Traditional Dyes
- Both emit narrowly; dots absorb broadly
- Single UV source excites all colours: multiplexed imaging
- Superior durability (5+ years detectable)
4. Medical Applications
- Tumour-targeting with antibodies
- Biological window: tunability to optimal wavelengths
5. The Nanotoxicity Question
- Poorly understood; bulk safety does not predict nanoscale
- Each application requires rigorous assessment
6. Take-Home Message
- Tunable properties unmatched by dyes
- Promise balanced against nanotoxicity caution
External Sources to Include
- Reference: MIT quantum dot tattoo research paper/news article
- Quote: Scientific opinion on quantum dots in medical applications
Context Points
- Societal: Medical records, vaccination tracking, cancer treatment
- Research: Ongoing nanotoxicity studies, emerging applications in displays, photovoltaics
Style Notes
- Use the “jack-in-the-box” analogy for quantum confinement
- Keep physics accessible—energy levels without heavy maths
- Connect to real-world applications throughout
- Address both promise and concerns (toxicity)