Optical-Concentrating Solar Distillation Based on Three-Dimensional Copper Foam Cubes Coated with CuS Nanoparticles and Agarose Gel.

Solar distillation by interfacial evaporation is a promising method for relieving the freshwater crisis. However, the solar-to-water generation rate inside an enclosed system is usually lower than the solar-to-vapor evaporation rate in an open system due to the lower mass transfer rate. In this work, we demonstrate high rate solar distillation based on a three-dimensional copper foam (CF) cube, which offers five surfaces for absorbing direct and reflected sunlight to achieve optical concentration.

Clinical utility of cerebrospinal fluid-derived circular RNAs in lung adenocarcinoma patients with brain metastases.

Background: Free circular RNAs(circRNAs) escaping from primary lesion of cancer to brain are strictly regulated by blood-brain barrier and therefore cerebrospinal fluid (CSF) circRNAs have potential advantage in exploring biomarkers and mechanism of brain metastasis in lung cancer.

Methods: We collected paired cerebrospinal fluid, plasma and tumor tissues from 21 lung adenocarcinoma (ADC) patients with brain metastases (BM) and performed RNA sequencing.

Results: Compared to tumor tissue and plasma, circRNAs in CSF were characterized by lower number of spieces but higher abundance.