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Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection.
The Wood Green ricin plot was an alleged bioterrorism plot to attack the London Underground with ricin poison. The Metropolitan Police Service arrested six suspects on 5 January 2003, [ 1 ] [ 2 ] with one more arrested two days later.
In 2003, a package and letter sealed in a "ricin-contaminated" envelope was intercepted in Greenville, South Carolina, at a United States Postal Service processing center. [16] Ricin was detected in the mail at the White House in Washington, D.C., in November 2003. The letter containing it was intercepted at a mail handling facility off the ...
The average functionality (number of hydroxyl groups per triglyceride molecule) of castor oil is 2.7, so it is widely used as a rigid polyol and in coatings. [1] One particular use is in a polyurethane concrete where a castor-oil emulsion is reacted with an isocyanate (usually polymeric methylene diphenyl diisocyanate ) and a cement and ...
Sihali was acquitted of the charges in April 2005, but was re-arrested on 15 September 2005, and held as a terrorist suspect. He is acquitted and does not face deportation. This is the case of 'wrong place at the wrong time' situation or a case of looking for 'scapegoats'. [1]
On April 17, 2013, FBI agents detained a Corinth, Mississippi, man on suspicion of mailing the ricin-laced letters. [4] [5] [10] All charges were dropped however, and he was released on April 23, 2013. Federal investigators reported that they could find no evidence linking him to the letters. [11]
Tea is to England what beer and hot dogs are to America. But as ingrained as tea is in the fabric of British culture, it takes a history lesson to explain how the drink actually became so popular.
Is the density of ricin so low that a pinhead-sized amount (I assume on the order of 10^-9 m^3) weighs only 0.5 mg? Or does this refer to a different delivery mechanism than injection or inhalation? "Ricin is 6 billion times more toxic than cyanide and 12 billion times more poisonous than rattlesnake venom by weight." This seems very unlikely.