Alina de Souza Leão Rodrigues

We introduce LeDNA, a versatile educational toolkit designed for teaching fundamental genetics and CRISPR-Cas gene editing principles in diverse settings, regardless of existing infrastructure. Fabricated using laser-cutting techniques, LeDNA is an open-source resource suitable for students across educational levels, from high school to graduate studies. Given the transformative potential of CRISPR technology in various fields, including medicine and agriculture, a widespread understanding of its principles is essential for informed public discourse and acceptance. By providing a readily accessible and affordable tool, LeDNA aims to democratize genetics and CRISPR education globally, fostering a more informed and engaged community.

Solid composites used in material extrusion additive manufacturing have experienced considerable expansion over the past 5 years, incorporating functional properties into 3D‐printed objects. This paper presents a systematic review that aims to: (I) analyze the current state of development in the field; (II) quantify and categorize the adopted polymeric matrices, reinforcing materials, feedstock shapes, characterization strategies, and extrusion mechanisms; and (III) identify the applications, limitations, and trends for future research. The PRISMA statement was followed and the databases Scopus, Web of Science, and PubMed were consulted. Among the 116 included studies, the use of customized filaments surpassed the commercially available ones, with particulate matter being the most common form of filler when melt‐mixed with the polymer. Polyamide is the most widely adopted matrix (30.3%), followed by PLA (22.0%) and ABS (17.4%). In terms of reinforcements, carbon fiber (32.4%), glass fiber (12.5%), and ceramics (12.5%) compose the podium as the most frequently used, with nanofillers receiving increasing attention. In the conducted analysis, no standardized protocols were identified that clearly encompassed the entire process from feedstock formulation to technical prototype fabrication. At last, recycling, exploration of biodegradable materials, and 4D printing were identified as the main opportunities for future research.Highlights: Reinforced polymers enable the enhancement of properties for 3D‐printed parts. Composite feedstock is usually formulated and mixed before printing. 3D printers with filament‐ or screw‐based extrusion mechanisms have been used. Mechanical and morphological analyses are common in material characterization. No identified applications were employed in real‐world scenarios.

O abandono de dispositivos assistivos está majoritariamente associado à desconsideração das necessidades do indivíduo e a uma tradição assistemática de projeto. Este trabalho apresenta o desenvolvimento sistemático e participativo do projeto conceitual de uma cadeira de banho. Combinando instrumentos da prática clínica com métodos de engenharia, entrevistaram-se doze usuários para as tomadas de decisões. A solução gerada apresentou grau de inovação, correspondência com as demandas e boa avaliação por profissionais da saúde. A abordagem possibilitou maior fluidez na comunicação entre os domínios, ressaltando a heterogeneidade das interações e favorecendo trocas mais objetivas e igualitárias.