Elimination of the bias-stress effect in ligand-free quantum dot field-effect transistors.

Field-effect transistors (FETs) made from colloidal quantum dot (QD) solids commonly suffer from current-voltage hysteresis caused by the bias-stress effect (BSE), which complicates fundamental studies of charge transport in QD solids and the use of QD FETs in electronics. Here, we show that the BSE can be eliminated in n-channel PbSe QD FETs by first removing the QD ligands with a dose of H2S gas and then infilling the QD films with alumina by atomic layer deposition (ALD). The H2S-treated, alumina-infilled FETs have stable, hysteresis-free device characteristics (total short-term stability), indefinite air stability (total long-term stability), and a high electron mobility of up to 14 cm2 V-1 s-1, making them attractive for QD circuitry and optoelectronic devices.

A liposomal bupivacaine infiltrative block reduces rescue analgesia administration compared to a bupivacaine splash block after canine ovariohysterectomy in a teaching laboratory.

Objective: This study aimed to determine whether an infiltrative block with liposomal bupivacaine was associated with less rescue analgesia administration and lower pain scores than a bupivacaine splash block after ovariohysterectomy in dogs.

Animals: Eligible dogs included those that were spayed as part of a veterinary teaching laboratory. Dogs were up to 7 years old and otherwise healthy.

Enhancing Bioproducts in Seaweeds via Sustainable Aquaculture: Antioxidant and Sun-Protection Compounds.

Marine macroalgae are considered an untapped source of healthy natural metabolites and their market demand is rapidly increasing. Intertidal macroalgae present chemical defense mechanisms that enable them to thrive under changing environmental conditions. These intracellular chemicals include compounds that can be used for human benefit.

Predicting the effect of fresh gas flow on tidal volume in volume-controlled mechanically ventilated dogs.

Objectives: To determine if the tidal volume (V) delivered (V) to canine patients being mechanically ventilated by a volume-controlled ventilator differed from the volume set on the ventilator (V) at three fresh gas flow (FGF) rates. To determine if V could be accurately predicted by an FGF-based mathematical model.

Study Design: Prospective proof-of-concept study.