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Fluorescence enhancement for the complex PAMAM-BSA in the presence of photonic crystal heterostructures |
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| Authors: | Alexandra Mocanu Bogdan MarculescuRaluca Somoghi Florin MiculescuCristian Boscornea Izabela Cristina Stancu |
| Affiliation: | a University Politehnica of Bucharest, Department of Polymer Science, 149 Calea Victoriei, RO-010072 Bucharest, Romania b National Research and Development Institute for Chemistry and Petrochemistry - ICECHIM, 202 Independence Street, District 6, CP 35-174, 060021 Bucharest, Romania c University Politehnica of Bucharest, 313 Spl. Independentei, RO-74204 Bucharest, Romania |
| Abstract: | The paper presents the optical characterization of the multilayer film composed of styrene (ST)-poly(ethylene glycol) methyl ether methacrylate (PEGMA 1100)-gold nanoparticles (Au)-poly(amidoamine) PAMAM (G4)-bovine serum albumin (BSA). The addition of the last layer composed of BSA resulted in an unusual optical behaviour, i.e. increase of the fluorescence emission intensity, respectively the intensity of the UV-vis reflection, compared with the ST-PEGMA 1100-Au-G4 film. The explanation could be attributed to the presence of photonic crystal heterostructures. The multilayer film has been characterized by optical microscopy, AFM, UV-vis, and fluorescence. |
| Keywords: | Photonic crystals Gold nanoparticles Serum albumin PAMAM Fluorescence UV-vis |
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