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      <dc:title>TADF-Emitting Nanoparticles for Application as Probes in Time-Resolved Imaging and 1O2 Photosensitizers</dc:title>
      <dc:creator>Diniz, Ana Marta</dc:creator>
      <dc:creator>I. C. Crucho, Carina</dc:creator>
      <dc:creator>Ruedas-Rama, Maria Jose</dc:creator>
      <dc:creator>Orte Gutiérrez, Ángel</dc:creator>
      <dc:creator>J. Dias, Cristina</dc:creator>
      <dc:creator>Outis, Mani</dc:creator>
      <dc:creator>N. Pinto, Sandra</dc:creator>
      <dc:creator>F. Faustino, M. Amparo</dc:creator>
      <dc:creator>Berberan-Santos, Mário Nuno</dc:creator>
      <dc:creator>Avó, João</dc:creator>
      <dc:subject>1,8-naphthalimide dyes</dc:subject>
      <dc:subject>luminescent nanomaterials</dc:subject>
      <dc:subject>microscopy imaging</dc:subject>
      <dc:description>Organic Thermally Activated Delayed Fluorescence (TADF) molecules are luminescent&#xd;
compounds capable of harvesting energy from triplet states without&#xd;
using heavy metals. This process results in oxygen-sensitive, long-lived delayed&#xd;
emission, suitable for developing optical probes for time-gated cell imaging,&#xd;
oxygen sensors, and singlet oxygen photosensitizers. Despite their potential,&#xd;
the use of TADF emitters in these applications is hindered by poor performance&#xd;
in polar media and the challenge of balancing high photoluminescence quantum&#xd;
yields, long emission lifetimes, and high triplet formation quantum yields.&#xd;
In this study, novel TADF emitters are developed based on 1,8-naphthalimide&#xd;
(NI) dyes, and how encapsulation in polymeric nanoparticles can enhance their&#xd;
performance in aqueous media is demonstrated. The resulting nanomaterials&#xd;
exhibit high delayed-to-prompt emission ratios, long delayed fluorescence&#xd;
lifetimes, and exceptional applicability in time-resolved imaging. The singlet&#xd;
oxygen photosensitization capabilities of the TADF nanomaterials in the photodegradation&#xd;
of phenol, exploring a Förster Resonance Energy Transfer (FRET)&#xd;
system that improved the efficiency, are also assessed. These findings highlight&#xd;
the promising potential of TADF nanomaterials for diverse applications,&#xd;
including photodegradation of pollutants, cellular imaging, and biosensing.</dc:description>
      <dc:date>2024-11-27T12:50:13Z</dc:date>
      <dc:date>2024-11-27T12:50:13Z</dc:date>
      <dc:date>2024-11-18</dc:date>
      <dc:type>journal article</dc:type>
      <dc:identifier>Diniz, A.M. et. al.  Adv. Optical Mater. 2024, 2402063. [https://doi.org/10.1002/adom.202402063]</dc:identifier>
      <dc:identifier>https://hdl.handle.net/10481/97473</dc:identifier>
      <dc:identifier>10.1002/adom.202402063</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
      <dc:rights>open access</dc:rights>
      <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
      <dc:publisher>Wiley Online Library</dc:publisher>
   </ow:Publication>
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