Leiden University Scholarly Publications

Bunschoten, A.; Chin, P.T.K.; Buckle, T.; Linden, M. van der; Barendregt, A.; Verheijen, M.A.; Leeuwen, F.W.B. van 2016

Receptor-Targeted Luminescent Silver Bionanoparticles

Article / Letter to editor

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Chin, P.T.K.; Welling, M.M.; Meskers, S.C.J.; Olmos, R.A.V.; Tanke, H.; Leeuwen, F.W.B. van 2013

Optical imaging as an expansion of nuclear medicine: Cerenkov-based luminescence vs fluorescence-based luminescence

Article / Letter to editor

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Chin, P.T.K.; Linden, M. van der; Harten, E.J. van; Barendregt, A.; Rood, M.T.M.; Koster, A.J.; ... ; Meijerink, A. 2013

Enhanced luminescence of Ag nanoclusters via surface modification

Article / Letter to editor

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In this work we present a detailed study on the influence of surface modifications for luminescent silver (Ag) clusters. Ag clusters (25 atoms) capped with dihydrolipoic acid show a distinct... Show moreIn this work we present a detailed study on the influence of surface modifications for luminescent silver (Ag) clusters. Ag clusters (25 atoms) capped with dihydrolipoic acid show a distinct absorbance spectrum with several sharp transitions, and relative broad deep red luminescence with a quantum yield of 5% combined with a remarkably long luminescence lifetime of ∼3 μs at room temperature. Both pH and the presence of coordinating ligands influence the absorbance spectra and fluorescence intensity. A strong increase in luminescence intensity up to 45% quantum yield could be induced by coordination with PEG ligands. Conclusion: the surface coordination of the Ag clusters strongly influences the optical properties. Show less