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Home > Our Changing World > Mixing oil and water, the greener way


	Podcast:		Our Changing World
	Episode:		Mixing oil and water, the greener way
	Category:		Science & Medicine
	Duration:		00:26:35
	Publish Date:		2025-11-17 16:00:00
	Description:		Oil and water don’t mix — unless surfactants step in. At Auckland University of Technology, a team of chemists has created a new kind of surfactant made from wood pulp rather than fossil fuels or palm oil. They hope that the cosmetic industry will be interested in this greener way to make smooth creams and lotions. Plus, what do geothermal spring microbes have to do with smelly wine? *Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.* Learn more: Dr Jack Chen has been on RNZ several times to talk about the chemistry of dishwashing, oven cleaning and laundry detergents. Soap is also a surfactant, which is what makes it good at washing oils off our hands, as well as busting open viruses. The cosmetic industry is not new, and during the Renaissance there were some ‘interesting’ recipes about, but did they have some good ideas? Listen to episodes exploring the use of chemistry in reconstructing past lives, honey fingerprinting, reducing the carbon cost of producing ammonia and creating a perfume to trap invasive spiders. Guests: Dr Jack Chen, Dr Mohinder Naiya, Dr Victor Yim and Josh Van Dongen of Dot Ingredients. Sarah Manners, University of Canterbury Go to this episode on rnz.co.nz for more details
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