Researchers have developed methods for measuring levels of free-base nicotine in electronic cigarette (e-cigarette) liquids and vapor, the levels of which are associated with harshness upon inhalation ...

Researchers at Portland State University have developed methods for measuring levels of free-base nicotine in electronic cigarette (e-cigarette) liquids and vapor, the levels of which are associated ...

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PORTLAND, Ore. -- When it comes to nicotine content, all cigarettes are not created equal, according to a new study by researchers at Oregon Health & Science University. In fact, the study finds that ...

Researchers at Portland State University have developed methods for measuring levels of free-base nicotine in electronic cigarette (e-cigarette) liquids and vapor, the levels of which are associated ...

Although children under the age of 18 can’t legally buy e-cigarettes in most states, the devices have exploded in popularity among teens. According to a 2017 survey conducted by the University of ...