Patent ID: 7842516
Filing Date: 2010-11-30
Classification: B01J,B82Y,C03C,C40B,G01N

Abstract:
1. An encodable particle comprising: a glass particle doped with at least one rare earth element distributed in the particle at a concentration, a location, or both, to provide a pattern or an array of marks having a unique identification code to identify a functional group attached thereto, the functional group is selected from the group consisting of a nucleic acid, an antibody, a protein, and an enzyme, the rare earth element is selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, U, and combinations thereof, the particle comprises a fiber having a diameter of 10 microns to 100 microns, and the fiber having a cross-section including an array of layers, each layer having an optical property different from an optical property of adjacent layers.