Chen, Yang published the artcileFluorescent quantification of amino groups on silica nanoparticle surfaces, Application of 1-((9H-Fluoren-9-yl)methyl)piperidine, the publication is Analytical and Bioanalytical Chemistry (2011), 399(7), 2503-2509, database is CAplus and MEDLINE.
Functionalization of the surfaces of silica particles is often the first step in their various applications. An improved heterogeneous Fmoc-Cl fluorescent assay using an aqueous solution was developed to detect the number of amino groups on solid-phase supports. The fluorescent Fmoc-Cl method is 50-fold more sensitive than the current UV assay using an organic solvent. This method, together with the homogeneous fluorescamine and OPA assays, is used to detect amino groups on the silica particle surface. The accuracy and effect factors of these methods were examined and the assays were optimized. The results showed that the amine groups on silica particles can produce stronger fluorescence than small amine mols. in solution, because the porous structure of the particle surface is a more hydrophobic environment. The number of active amino groups that can be conjugated with biomols. is much less than the total number of amino groups on the silica particle. Compared with phys. methods, chem. assays involving direct reaction with amino groups would furnish the closest result to the number of active amino groups on the particle surface.
Analytical and Bioanalytical Chemistry published new progress about 35661-58-6. 35661-58-6 belongs to piperidines, auxiliary class Piperidine,Benzene, name is 1-((9H-Fluoren-9-yl)methyl)piperidine, and the molecular formula is C19H21N, Application of 1-((9H-Fluoren-9-yl)methyl)piperidine.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem