Solar Light Elimination of Bacteria, Yeast and Organic Pollutants by Effective Photocatalysts Based on Ag/Cr-TiO and Pd/Cr-TiO.

This study focused on searching for more effective nanomaterials for environmental remediation and health protection; thus, coliform bacteria, yeast and the organic food dye sunset yellow were selected as target pollutants to be eliminated under solar light by Ag/Cr-TiO and Pd/Cr-TiO. Firstly, Cr was in situ incorporated into the anatase crystalline lattice by the sol-gel method; then, Ag or Pd nanoparticles were deposited on Cr-TiO by chemical photoreduction. The scientific challenge addressed by the development of these composites was to analyse the recovery of Cr, to be employed in photocatalyst formulation and the enhancement of the TiO photocatalytic activity by addition of other noble metals.

Predicting chronic kidney disease progression with artificial intelligence.

Background: The use of tools that allow estimation of the probability of progression of chronic kidney disease (CKD) to advanced stages has not yet achieved significant practical importance in clinical setting. This study aimed to develop and validate a machine learning-based model for predicting the need for renal replacement therapy (RRT) and disease progression for patients with stage 3-5 CKD.

Methods: This was a retrospective, closed cohort, observational study.

Prediction of patient admission and readmission in adults from a Colombian cohort with bipolar disorder using artificial intelligence.

Introduction: Bipolar disorder (BD) is a chronically progressive mental condition, associated with a reduced quality of life and greater disability. Patient admissions are preventable events with a considerable impact on global functioning and social adjustment. While machine learning (ML) approaches have proven prediction ability in other diseases, little is known about their utility to predict patient admissions in this pathology.

Ag/Cr-TiO and Pd/Cr-TiO for Organic Dyes Elimination and Treatment of Polluted River Water in Presence of Visible Light.

In this work, photocatalytic materials constituted by Cr-doped TiO (Cr-TiO) decorated with noble metals show high effectiveness in the mineralization of Acid Orange 7 (AO7) and in the disinfection of real river water. The materials were firstly obtained by sol-gel method to get Cr-TiO that was subsequently modified by photochemical deposition of Ag or Pd nanoparticles (Ag/Cr-TiO, Pd/Cr-TiO). Chemical-physical characterization results evidenced that the noble metals were homogeneously distributed on the Cr-TiO surface.

Risk assessment and green chemistry applied to waste generated in university laboratories.

Chemical reagents have become fundamental products in daily life use, they contribute in several ways to establish a high level of social development. In the case of higher education, the use of reagents allows learning thought laboratory practices. These practices must be carried out under preventative measures, in order to avoid negative impacts on the environment and human health; this generates the need to identify and classify the chemical substances used and the waste generated.