3D-Printed PCL-Based Scaffolds with High Nanosized Synthetic Smectic Clay Content: Fabrication, Mechanical Properties, and Biological Evaluation for Bone Tissue Engineering.

Background: The 3D printing of macro- and mesoporous biomimetic grafts composed of polycaprolactone (PCL) infused with nanosized synthetic smectic clay is a promising innovation in biomaterials for bone tissue engineering (BTE). The main challenge lies in achieving a uniform distribution of nanoceramics across low to high concentrations within the polymer matrix while preserving mechanical properties and biological performance essential for successful osseointegration.

Methods: This study utilized 3D printing to fabricate PCL scaffolds enriched with nanosized synthetic smectic clay (LAP) to evaluate its effects on structural, chemical, thermal, mechanical, and degradative properties, with a focus on in vitro biological performance and non-toxicity.

Corrigendum: Radiochemical and biological assessments of a PSMA-I&S cold kit for fast and inexpensive Tc-labeling for SPECT imaging and radioguided surgery in prostate cancer.

[This corrects the article DOI: 10.3389/fchem.2023.

Government and community strategies in Pernambuco, Brazil, to face COVID-19.

This case study analyzed arrangements and strategies of the network actors in the Special Indigenous Sanitary District (DSEI) Pernambuco's territory to guarantee the right to health of Indigenous populations during the COVID-19 pandemic. This work was carried out through document analysis, workshops, and field research. The Contingency Plan for COVID-19 in Indigenous Peoples of DSEI Pernambuco included surveillance actions, laboratory and pharmaceutical assistance, communication, and management.

Health surveillance among indigenous populations in the context of COVID-19: a scoping review.

The study aimed to identify protection strategies used by Indigenous peoples during the COVID-19 pandemic. Analyzing 56 articles from 2020 to May 2021 across four areas -community organization, governance, communication, and territorial approaches - it found that structural vulnerabilities shaped their responses. The spread of the virus was influenced by environmental, social, and cultural factors.

Enhancing safety monitoring in post-stroke rehabilitation through wearable technologies.

Objective: Current clinical practice guidelines support structured, progressive protocols for improving walking after stroke. Technology enables monitoring of exercise and therapy intensity, but safety concerns could also be addressed. This study explores functional mobility in post-stroke individuals using wearable technology to quantify movement smoothness-an indicator of safe mobility.