Electroencephalography Monitoring for Preventing Postoperative Delirium and Postoperative Cognitive Decline in Patients Undergoing Cardiothoracic Surgery: A Meta-Analysis.

Background: Patients undergoing cardiothoracic surgery frequently encounter perioperative neurocognitive disorders (PND), which can include postoperative delirium (POD) and postoperative cognitive decline (POCD). Currently, there is not enough evidence to support the use of electroencephalograms (EEGs) in preventing POD and POCD among cardiothoracic surgery patients. This meta-analysis examined the importance of EEG monitoring in POD and POCD.

Full-color-emitting fluids from carbon dots stabilized in nonconventionally fluorescent micelles.

Red-emitting carbon dots from pyrolysis of citric acid in formamide, which are intrinsically water-insoluble, were solubilized and stabilized by the fluorescent micelles formed by a nonionic silicone surfactant and an anionic surfactant, leading to the formation of full-color-emitting colloids with good biocompatibility and a variety of potential applications.

Room Temperature Phosphorescence Carbon Dots: Preparations, Regulations, and Applications.

Room temperature phosphorescence (RTP) materials have drawn considerable attention by virtue of their outstanding features. Compared with organometallic complexes and pure organic compounds, carbon dots (CDs) have emerged as a new type of RTP materials, which show great advantages, such as moderate reaction condition, low toxicity, low cost, and tunable optical properties. In this review, the important progress made in RTP CDs is summarized, with an emphasis on the latest developments.

Clustering-enhanced, nonconventional photoluminescence from a silicone surfactant.

By using the intrinsic nonconventional photoluminescence (-PL) of organo-siloxane and the synergetic effect of the surfactant mixture, we report strong -PL from aqueous colloids containing a nonionic silicone surfactant mixed with a traditional anionic surfactant, with an unprecedently high fluorescence quantum yield of up to 85.58%.

Supramolecular structures from structurally persistent and surface active carbon dots in water.

Carbon dots (CDs) have developed into an important class of nanomaterials that have attracted increasing attention during the past decades. Despite numerous types of CDs reported to date, research on their self-assembly is still limited. Herein, we report for the first time the self-assembly of CDs in water, which show concentration-dependent aggregation behavior.

formation and dispersion of lanthanide complexes in wormlike micelles.

Lanthanide-containing, water-based fluids normally suffer from low photoluminescent (PL) and/or colloidal stability, which greatly hinders their applications. Herein, we report the preparation of PL fluids which contain formed europium complexes in aqueous solution. The strategy first relies on the construction of wormlike micelles by mixing a zwitterionic surfactant (tetradecyldimethylaminoxide, CDMAO) and a tridentate ligand for a lanthanide cation (2,6-dipicolinic acid, DPA) in water.

Model for Predicting the Tortuosity of Transport Paths in Cement-Based Materials.

The tortuosity of the pore structure is an important factor affecting medium (water and harmful ions) transport in cement-based materials. In this study, a new tortuosity model was established to reveal the effect of aggregate size, morphology, and graded media on the transport path in cement-based materials. Based on the stereological principle and the geometric algorithm, the distribution model of the ideal pebble and polygonal aggregate in cement-based materials was given first.