Publications by authors named "A Kostopoulou"
Toward the Optimization of a Perovskite-Based Room Temperature Ozone Sensor: A Multifaceted Approach in Pursuit of Sensitivity, Stability, and Understanding of Mechanism.
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January 2025
Metal halide perovskites (MHPs) have attracted significant attention owing to their simple manufacturing process and unique optoelectronic properties. Their reversible electrical or optical property changes in response to oxidizing or reducing environments make them prospective materials for gas detection technologies. Despite advancements in perovskite-based sensor research, the mechanisms behind perovskite-gas interactions, vital for sensor performance, are still inconclusive.
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- * Follow-up over approximately 29 months revealed that ILRs helped establish diagnoses in significant portions of these patients, particularly detecting issues like atrial fibrillation in those with a history of cryptogenic stroke.
- * The findings suggest that ILRs not only aid in diagnosis but also lead to changes in treatment strategies for around one-fourth of the patients, making them a valuable tool in cardiac evaluations.
Article Synopsis
- Researchers have discovered that attaching metal halide perovskite nanocrystals to reduced graphene oxide (rGO) sheets creates efficient and stable electrodes for zinc-ion capacitors.
- This innovative combination introduces a new energy storage mechanism which boosts performance significantly.
- A simple laser technique at room temperature allows for the effective attachment of CsPbBr nanocrystals to rGO without altering their fundamental properties, resulting in a remarkable increase in capacitance—up to 178 times higher than plain rGO and 152 times higher than standalone perovskite electrodes.
Size- and shape-dependent unique properties of the metal halide perovskite nanocrystals make them promising building blocks for constructing various electronic and optoelectronic devices. These unique properties together with their easy colloidal synthesis render them efficient nanoscale functional components for multiple applications ranging from light emission devices to energy conversion and storage devices. Recently, two-dimensional (2D) metal halide perovskites in the form of nanosheets (NSs) or nanoplatelets (NPls) are being intensively studied due to their promising 2D geometry which is more compatible with the conventional electronic and optoelectronic device structures where film-like components are usually employed.
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- The study investigates the clinical effects of PTEN loss and ERG rearrangement in localized prostate cancer patients post-radical prostatectomy.
- Data from 74 patients showed PTEN loss linked to higher cancer grades and a significant association with biochemical recurrence, while ERG rearrangement did not show a significant impact.
- The combination of PTEN loss and ERG rearrangement was more common in patients with higher cancer grades and recurrence, but this finding was not statistically significant.