UNEXPECTED EFFECT OF EXCITATION WAVELENGTH IN SINGLE-MOLECULE PHOTOCHEMISTRY OF TERRYLENE.

The reaction of terrylene in p-terphenyl with molecular oxygen is reinvestigated by TIRF-microscopy with λexc = 488 nm or λexc = 561 nm and 488 nm. A similar range of fluorescent products is obtained under both experimental conditions with a reaction quantum yield Φr > 10-7 for those molecules which undergo the photoreaction. The majority of these oxygen-susceptible molecules reacts via an electronically relaxed, dark intermediate, presumably an endoperoxide, with a lifetime of ~ 20 s.

CO and Temperature Induced Switching of a Flexible Metal-Organic Framework with Surface-Mounted Nanoparticles.

Within the material family of metal-organic frameworks (MOFs) the subclass of flexible MOFs (flexMOFs) has attracted great attention, showing structural flexibility as a response to external stimuli such as guest adsorption, temperature, and pressure. Hybrid composites like nanoparticle (NP) loaded flexible MOFs, which stand to potentially combine advantageous properties of both are yet largely unexplored. Here the synthesis of flexMOFs with surface mounted nanoparticles, e.

The Use of Retinal Imaging Including Fundoscopy, OCT, and OCTA for Cardiovascular Risk Stratification and the Detection of Subclinical Atherosclerosis.

Purpose Of Review: Cardiovascular disease (CVD) is a leading cause of preventable morbidity and mortality globally, and retinal imaging modalities (old and new) are being explored as noninvasive tools to predict latent atherosclerosis and cardiovascular disease. This review focuses on the emerging promise of fundoscopy, optical coherence tomography (OCT), and optical coherence tomography angiography (OCTA) in CVD prognostication.

Recent Findings: High-quality studies have established the utility of vessel-based parameters and discrete conditions diagnosable via fundoscopy in subclinical atherosclerosis detection or CVD prediction.

Two-hit mouse model of heart failure with preserved ejection fraction combining diet-induced obesity and renin-mediated hypertension.

Heart failure with preserved ejection fraction (HFpEF) is increasingly common but its pathogenesis is poorly understood. The ability to assess genetic and pharmacologic interventions is hampered by the lack of robust preclinical mouse models of HFpEF. We developed a novel "two-hit" model, which combines obesity and insulin resistance with chronic pressure overload to recapitulate clinical features of HFpEF.