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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Biomaterials. 2011 Jun 11;32(27):6412–6424. doi: 10.1016/j.biomaterials.2011.05.034

Figure 2. Surface modification results.

Figure 2

Confocal images showing the fluorescence from (a) cascade blue hydrazide fluorescent probe on Glass-CHO and fluorescamine probe on Glass-CLP-Cys, and (b) fluorescamine probe on HGP-CLP-Cys particles. CHO-modified surfaces are clearly stained blue by treatment with cascade blue. Glass-CHO or HGP-CHO particles show no fluorescence when treated with fluorescamine due to the absence of amine groups. The Glass-CLP-Cys shows no fluorescence when treated with the cascade blue hydrazide probe suggesting the absence of aldehyde group after conjugation with CLP.