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Biosensor detects brain tumors with less than a drop of blood

30-Sep-2022

Despite significant advances, mortality from brain tumors remains high with five-year survival rates of 36%, according to the National Cancer Institute. More accurate diagnoses might improve the situation, but tissue biopsies are invasive and can miss important information about a tumor’s ...

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How to tell if that plastic bottle or bag has recycled material in it

27-Sep-2022

To encourage more recycling, the U.K. taxes single-use plastic products containing less than 30% recycled material. But aside from a manufacturer’s word, there isn’t an easy way to verify this composition. Now, researchers reporting in ACS Sustainable Chemistry & Engineering have developed a ...

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Detecting nanoplastics in the air

“Nanoplastics are a major concern if they’re in the air that you breathe, getting into your lungs and potentially causing health problems”

29-Aug-2022

Large pieces of plastic can break down into nanosized particles that often find their way into the soil and water. Perhaps less well known is that they can also float in the air. It’s unclear how nanoplastics impact human health, but animal studies suggest they’re potentially harmful. As a step ...

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Exposing what’s in tattoo ink

Ingredient lists often aren’t accurate

29-Aug-2022

From life-like faces to elaborate nature scenes, tattoos are a true art form. Although people have decorated their bodies for millennia for ceremonial and religious reasons, many people today adorn themselves with these images as a form of self-expression. But the inks used for tattoos are ...

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‘E-nose’ sniffs out mixtures of volatile organic compounds

Accurately distinguish xylene isomer mixtures

13-Jun-2022

As paint thinner, ink and adhesives dry, they can release volatile organic compounds (VOCs), which can negatively impact health. Typically, one of those VOCs is xylene, which exists as three isomers with the same elements but slightly different arrangements. Because the isomers are so similar, ...

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Mucus could explain why SARS-CoV-2 doesn’t spread easily from surfaces

Findings could also hint at why some people are more vulnerable to COVID-19 than others

04-Mar-2022

Early in the pandemic, many people fastidiously disinfected surfaces because laboratory studies predicted that SARS-CoV-2 could be easily transmitted in this way. Now, researchers reporting in ACS Central Science have found a possible explanation for why the predictions didn’t pan out: ...

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‘E-nose’ could someday diagnose Parkinson’s disease by ‘smelling’ skin

Artificial Intelligent Olfactory System could someday help diagnose Parkinson’s disease at an early stage, when treatment is most effective

25-Feb-2022

A couple of years ago, a woman named Joy Milne made headlines when scientists discovered that she could “smell” Parkinson’s disease (PD) on people with the neurodegenerative disorder. Since then, researchers have been trying to build devices that could diagnose PD through odor compounds on the ...

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Camels’ noses inspire a new humidity sensor

Device could reliably detect variations in humidity in settings that included industrial exhaust and the air surrounding human skin

21-Jan-2022

Camels have a renowned ability to survive on little water. They are also adept at finding something to drink in the vast desert, using noses that are exquisite moisture detectors. In a new study in ACS Nano, researchers describe a humidity sensor inspired by the structure and properties of ...

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Doping by athletes could become tougher to hide with new detection method

Ion mobility-mass spectrometry to detect known dopants and newly created illicit steroids not yet known

12-Apr-2021

As the world awaits the upcoming Olympic games, a new method for detecting doping compounds in urine samples could level the playing field for those trying to keep athletics clean. Scientists report an approach using ion mobility-mass spectrometry to help regulatory agencies detect existing ...

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Detecting CRISPR/Cas gene doping

An initial step toward a test to pinpoint athletes trying to gain an unfair advantage

11-Jan-2021

All athletes want to be at the top of their game when they compete, but some resort to nefarious approaches to achieve peak muscle growth, speed and agility. Recent developments in gene editing technology could tempt athletes to change their DNA to get an edge. Now, researchers reporting in ACS' ...

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