Figure 2.

Modification and fluorescein-loading of ceramic beads. (A) Reaction scheme for the loading of amino groups on the ceramic and glass beads and the subsequent reaction with NHS-fluorescein. (B) Fluorescence micrographs of ceramic beads and glass beads.

Lu et al. BMC Chemical Biology 2005 5:3   doi:10.1186/1472-6769-5-3
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