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Technology
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Jun 17, 2025
Japanese researchers develop dissolvable plastic
Japanese researchers have created a new plastic that dissolves in saltwater within hours, offering a fresh way to tackle ocean microplastic pollution.
Made from sodium hexametaphosphate and guanidinium ions, this material stays solid until it touches saltwater—then it quickly breaks down.
TL;DR
Strong and safe material can be used in various applications
This plastic is strong, safe, and can be customized for things like 3D printing or medical devices.
It holds up during normal use but falls apart harmlessly in the ocean, leaving no toxic leftovers.
Plastic can help nourish soil after breaking down
Most of its parts can be recovered and reused—plus both ingredients are biodegradable. After breaking down, they can even help nourish soil.
If widely adopted, this could seriously cut down on ocean waste and microplastics.