8legs: American chemical society

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#1 out of 23.85%

A conductive, clear nail polish could help long fingernails work with capacitive touchscreens, addressing a key challenge for users with natural non-conductive nails.
Desai and Lawrence tested hundreds of formulations, identifying a small set of additives that enable conductivity without metal particles.
The effective combination uses ethanolamine and taurine, balancing conductivity with clarity to avoid a colored or metallic look.
The polish remains in early stages; a thin layer does not consistently register, and ethanolamine evaporates quickly, limiting duration of use.
The work originated as a Centenary College of Louisiana project, with Desai pursuing cosmetic chemistry to keep nails compatible with touchscreens.
Desai aimed to avoid toxic materials and metals, seeking a clear polish that could be used over any manicure.
The approach relies on acid-base chemistry rather than metal additives to support electrical conductivity at the nail surface.
The team presented findings at an American Chemical Society meeting, signaling peer interest and validation for the concept.
The ultimate goal is broader accessibility, enabling people with calluses, dry skin, or gloves to operate touch screens more easily.
Researchers continue screening compounds and refining formulas, pursuing a durable, commercially viable solution rather than a one-off prototype.

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#2 out of 2

A Indiana-led study found lead levels in 11 bright-colored fast fashion shirts exceeding safety limits.
Researchers simulated digestion to estimate body lead absorption from chewed garments.
CPSC lead limit for children's clothes is 100 parts per million, per the study.
The study did not name specific brands but warned of potential widespread exposure.
Experts say bright colors showed the highest lead levels in garments.
Researchers urge consumer pressure on manufacturers to curb lead use in fashion.
The study suggests lead exposure from clothing could add to other sources of lead in children.
Researchers aim to study more shirts and laundering effects on lead levels.
The finding was to be presented at an upcoming spring meeting of the American Chemical Society.
Lead exposure from clothing poses risk to children and calls for precautionary action.

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