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Even seven years after the Fundão dam breach, the environmental damage caused by the released mud is still not sufficiently clear. Have potentially toxic metals and metalloids been transported and accumulated in the soils of the margins and can they be transferred to plants, animals, and humans?

As florestas são reservatórios de substância importantes e muitas delas podem ser úteis para o tratamento de doenças. Dentre estas estão os alcaloides que, possivelmente, é classe de produtos naturais com maior número de compostos bioativos, apesar de restrito a apenas algumas famílias. Esse artigo - "Aqui tem Química. Parte IX. Os Alcaloides das Florestas" - apresenta de forma didática esses importantes produtos naturais das florestas.

A ruthenium complex was covalently immobilized into silica spheres producing a robust material capable of resisting leaching even in drastic reactional conditions.

Scientometric analysis of publications on the species Uncaria tomentosa from 2011 to 2021.

This tutorial review aims to provide an alternative for natural products metabolomic data analysis through MS data processing, statistical analysis, molecular networking, and metabolite annotation tools.

Quantification of Rare Earth Elements in geological samples using the Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) technique.

The graphic figure summarizes the union of data from Brazilian plants investigated in vitro against alpha Glucosidase, considered a preliminary evaluation of natural products for the control or treatment of diabetes mellitus.

Approach to the principles and applications of digital imaging, including devices, precision, color models, and its use in chemistry teaching. Digital imaging has the potential to enrich classes, increasing student motivation. It is a growing area with significant educational potential.

Schematic representation of the surface functionalization process of NiTi (Nitinol) alloy with chitosan-based composite coatings for biomedical applications.

O gás hidrogênio, produzido na reação entre o alumínio e o ácido clorídrico, é coletado em uma seringa e o deslocamento do pistão (à pressão constante) é usado para o cálculo do trabalho.

Lithium carbonate (Li2CO3) makes up antidepressant pills used in the treatment of bipolar disorder. Potentiometric and conductimetric acid-base titrations were used to determine the Li2CO3 content in tablet and in the chemical reference substance (pure Li2CO3).