| abstract |
A laboratory consumable having a polymeric coating, formed by exposing said consumable to pulsed plasma comprising a compound of formula (I) <EMI ID=1.1 HE=18 WI=71 LX=769 LY=894 TI=CF> <PC>where R<1>, R<2> and R<3> are independently selected from hydrogen, alkyl, haloalkyl or aryl optionally substituted by halo; andR<4> is a group X-R<5> where R<5> is an alkyl or haloalkyl group and X is a bond; a group of formula -C(O)O(CH2)nY- where n is an integer of from 1 to 10 and Y is a bond or a sulphonamide group; or a group -(O)pR<6>(O)q(CH2)t- where R<6> is aryl optionally substituted by halo, p is 0 or 1, q is 0 or 1 and t is 0 or an integer of from 1 to 10, provided that where q is 1, t is other than 0, for a sufficient period of time to allow a polymeric layer to form on the surface of the laboratory consumable. Consumables of this type show significantly reduced liquid sample retention, maximum sample recovery and ultra non-binding properties, as well as oil and water-repellency. |