Patent ID: 6461734
Filing Date: 2002-10-08
Classification: B01J,C03C,C07B,C07H,C40B,Y10T

Abstract:
A substrate for supporting high-density biological and chemical arrays comprising:a boroaluminosilicate glass material having a sodium oxide content less of than 12 mole percent and a composition, in mole percent, consisting essentially of: SiO264-70Y2O30-5Al2O39.5-14â€‰MgO0-5B2O3â€‚5-10CaOâ€‚3-13TiO20-5SrOâ€‚â€‰0-5.5Ta2O50-5BaO2-7Nb2O50-5MgO + CaO + SrO + BaO10-20â€ƒand having a top surface with an average roughness of less than about 10 nanometers; a uniform, functionalized coating of a polar silane covering at least a portion of a surface of said material; and said substrate characterized in that the functionality of said coating is retained after immersion in boiling water for an amount of time exceeding 1 hour.