GCSE Chemistry – Nanoparticles – Uses | Risks (2026/27 exams)

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*** WHAT’S COVERED ***
1. The definition of nanoparticles
* An explanation of their size (1-100 nanometres)
* The field of nanoscience
2. Key properties of nanoparticles
* A high surface area to volume ratio and why this occurs
3. The various uses of nanoparticles
* As catalysts to speed up chemical reactions
* In nanomedicine for targeted drug delivery (e.g., fullerenes)
* For creating tiny electrical circuits and computer chips
* The antibacterial properties of silver nanoparticles in surgical masks and wound dressings
4. The risks and potential issues with nanoparticles
* The uncertainty of their long-term effects on the human body
* The potential for environmental damage (e.g., from sun creams)
* The need for clear labelling and regulation

*** EXAM BOARD SPECIFIC INFO ***
AQA – This video is only for the separate/triple science course
IGCSE Edexcel – Not in your course
Edexcel – This video is only for the separate/triple science course
OCR 21st Century – Everything is relevant to your course!
OCR Gateway – This video is only for the separate/triple science course

*** CHAPTERS ***
0:00 Introduction
0:17 What are Nanoparticles?
0:51 Surface Area to Volume Ratio
1:23 Uses – Catalysts
1:46 Uses – Nanomedicine
2:13 Uses – Electrical Circuits
2:25 Uses – Antibacterial Properties
2:44 Risks and Issues of Nanoparticles

*** PLAYLISTS ***

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