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Amphiphilic triblock copolymers containing FeIII‐catecholate complexes formulated as spherical‐ or cylindrical‐shaped micellar nanoparticles (SMN and CMN, respectively) are described as new T1‐weighted agents with high relaxivity, low cytotoxicity, and long‐term stability in biological fluids. Relaxivities of both SMN and CMN exceed those of established gadolinium chelates across a wide range of...
We demonstrate the synthesis of discrete, composition‐tunable gold‐cobalt nanoparticle alloys (% Co = 0–100%; diameter = 2–3 nm), in contrast with bulk behavior, which shows immiscibility of Au and Co at room temperature across all composition space. These particles are characterized by transmission electron microscopy and 1H NMR techniques, as well as inductively coupled plasma mass spectrometry,...
Efficient organic photovoltaic (OPV) materials are constructed by attaching completely planar, symmetric end‐groups to donor‐acceptor electroactive small molecules. Appending C2‐pyrene as the small molecule end‐group to a diketopyrrolopyrrole core leads to materials with a tight, aligned crystal packing and favorable morphology dictated by π–π interactions, resulting in high power conversion efficiencies...
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