TY  - CONF
A1  - Scholtz, Lena
T1  - Luminescent, Semiconductor Nanoparticle-Loadedpolymer Microbeads–Comparingparticlearchitectures
N2  - Luminescent polymer microparticles (PMPs) are applied in various (bio)analytical and diagnostic processes.[1] The staining of these beads is important for the realization of optically distinguishable barcodes that can be read out, e.g., by a flow cytometer or fluorescence microscope. Typically, luminescent semiconductor nanoparticles (NPs) absorb in a broad wavelength range and show narrow emission bands, which enables simultaneous excitation of differently colored luminophores and facilitates a spectral discrimination.[1] This makes them ideal candidates for this purpose and encouraged us to explore and develop a simple, effective approach to luminescent semiconductor NP encoding of polystyrene PMPs and identify suitable synthesis conditions.[2]
Until now, mainly semiconductor quantum dots (QDs) have been used for the synthesis of luminescent PMPs, although NPs with different shapes could introduce beneficial new features. Aiming for the application of our developed procedure to non-spherical NPs, we systematically investigated the luminescence properties of the resulting NP-stained beads using fluorescence and integrating sphere spectroscopy as well as fluorescence and electron microscopy. These studies showed that the suitability of semiconductor NPs for the synthesis of luminescent PMPs depends not only on their shape, but also heavily on their surface chemistry.[3] The successful incorporation of nonspherical NPs opens the path to include even more NPs, and the results can help to deduce future applications for the beads which best suit their specific properties.
T2  - E-MRS Fall Meeting 2025
CY  - Warsaw, Poland
DA  - 15.09.2025
KW  - Quality assurance
KW  - Fluorescence
KW  - Nano
KW  - Particle
KW  - Synthesis
KW  - Quantum dot
KW  - Quantum rod
KW  - Platelet
KW  - Quantum yield
KW  - Polymer particle
KW  - Encoding
KW  - Surface chemistry
KW  - Mechanism
KW  - Characterization
KW  - Lifetime
KW  - Barcode
KW  - Polymerization
KW  - Method
PY  - 2025
AN  - OPUS4-64242
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -