Alma Mater Studiorum-Universitá Di Bologna

Nelsi Zaccheroni

Luca Prodi

Enrico Rampazzo

Sara Bonacchi

Marco Montalti

Riccardo Juris

Damiano Genovese

A method for detecting nano- and micro-plastics in an aqueous sample suspected of being polluted with nano- or micro-plastics is provided. The method is based on interaction of the nano- and micro-plastics with hyaluronic acid functionalized with a luminescent or fluorescent dye. The luminescent or fluorescent dye is Rhodamine B or the metallorganic complex Ru(bpy).

Luminescent sensor for nano/microplastics

The present invention relates to silica nanoparticles comprising at least two dyes. Said dyes have a respective relationship of donor-acceptor couple in an energy transfer process and have a molar absorption coefficient &#x2267;10,000 Mcmfor the considered spectral region, a fluorescence quantum yield &#x2267;0.01, good overlap integral, according to the F&#xf6;rster theory, between said donor and said acceptor dye; said active compounds may be lipophilic or may present a functionality useful for the introduction of a trialkoxysilane moiety. The dyes provide an efficient energy transfer process. Said nanoparticles are useful as probes in the field of medicine, in particular therapy and diagnostics, more particularly in theranostics, and in the field of analytical chemistry.

Silica nanoparticles doped with multiple dyes featuring highly efficient energy transfer and tunable Stokes-shift

Nanoparticles, which are luminescent and/or electroactive and/or suitable for MRI (magnetic resonance imaging and/or PET (positron emission tomography) applications, comprise a micelle, which has a hydrophilic shell and an hydrophobic central portion, and a polysilicate core; the micelle comprises a plurality of molecules of a functionalized surfactant having the following structure: M-Hydro-Lipo-Hydro-Mwherein Lipo indicates a hydrophobic chain; Hydro1 ed Hydroindicate, each, a respective hydrophilic chain; Med Mrepresent respective recognition functionalities.

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Bologna, Italy

Nelsi Zaccheroni