Microsoft's move angered the digital marketing industry, which would prefer to see DNT left as an opt-in for users rather than an opt-out.

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To breed a better mine-sweeper, the Hunter researchers took advantage of the recent discovery of a receptor in the rodent brain for the odor of a chemical known as 2, 4-dinitrotoluene (DNT), which is essentially the same as TNT, which stands for trinitrotoluene.

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Starpharma holds 33% equity in the U.S.-based privately--held Dendritic Nanotechnologies Inc. (DNT), which Raff, who is a molecular biologist, co-founded with chemist Donald Tomalia.

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Up until this point, DNT had been tossed around as an opt-in feature.

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Starpharma's relationship with DNT links it into a much larger intellectual property space, as Tomalia retains many dendrimer-related patents.

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