Monday, January 20, 2025

Water purification using carbohydrate polymers

A sweet solution for water purification

Researchers in ACS Central Science report a sugar-like polymer that traps heavy metals within insoluble clumps for easy removal. In proof-of-concept tests, the polymer removed ionic cadmium and lead from river water spiked with these persistent contaminants. The team constructed several polymers, each having a water-insoluble backbone with different water-soluble carbohydrates dangling from the repeating units like charms on a bracelet.

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a modern technology device

Recovering gold from e-waste

Turning e-waste into gold.
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Illustration of the atomic arrangement within a single lanthanide-doped nanocrystal. Each lanthanide ion can emit light

New nanoscale force sensors made from luminescent nanocrystals

A tour de force.