Nanoengineers boost signals from fluorescent sensors

Fluorescent sensors, which can be used to label and image a wide variety of molecules, offer a unique glimpse inside living cells. However, they typically can only be used in cells grown in a lab dish or in tissues close ...

How to tie-dye cotton with acorns and rust

Tie-dyeing is a fun activity that can spice up clothes with colorful patterns. Although kits are available in stores, nature provides dyes that can be extracted from items found in one's yard—for example, acorns and rust. ...

Inexpensive paper sensor accurately IDs pathogenic bacteria

Bacterial infections are the leading cause of disease and death worldwide; an ongoing public health problem exacerbated by slow or inaccurate diagnostics. Now NIBIB-funded scientists have engineered an inexpensive, paper-based ...

A 'greener' alternative for red-colored smoke

The red smoke of a flare on a roadway warns motorists to be cautious, but the anthraquinone dyes currently used to produce this smoke are thought to be harmful to human health. Now, researchers reporting in ACS Sustainable ...

A new solution for wastewater remediation

Synthetic dyes are used across a wide variety of industries and constitute a serious concern when it comes to water pollution. These dyes are not only toxic, but they also persist in the environment for a long time without ...

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