Agriculture is the primary food source and fundamental for human survival. However, managing pests diseases of crops remains a challenge. Moreover, climate change events such as drought, soil depletion, low nutrient use efficiency are significant barriers to global security. Nanotechnology has emerged possibility resolving these issues. Nanomaterials have different properties compared their bulk forms, which allows wide range new applications. An urgent demand combat against pathogens that...

Bacterial infections associated with healthcare are a challenge on global scale due to the high morbidity and mortality rates, especially those caused by multidrug-resistant isolates. Hospital textiles abiotic surfaces that may serve as means of disseminating persisting microorganisms in hospitals, can remain viable these for up months. In this study, we employed green synthesis approach utilizing guava leaf extract (Psidium guajava) produce silver nanoparticles, which were then incorporated...

A nanoescala, que significa a bilionésima parte do metro, traz um universo encantador e com ela nanociência capaz de representar, na atualidade, contribuições em grandes escalas nas mais variadas áreas conhecimento humano. nanotecnologia utiliza para criação ou aprimoramento materiais funcionais, dispositivos sistemas através controle da matéria escala atômica molecular. Dentre as várias onde é utilizada podemos destacar nanoeletrônica, bionanotecnologia, nanomedicina, entre outras. As...

The development of sensors for the detection different substances is a worldwide demand. Nanotechnology has allowed great advances in this area an attempt to bring new possibilities. Sensors with perovskite and spinel structures have been widely investigated demonstrated interesting performances, due their fascinating optical, magnetic, electrical properties. Despite advancement, some limitations drawbacks be resolved. Moreover, combination such graphene derivatives attracted particular...

Over the years, science and technology have enabled improvement in various sectors of society through development products, services, applications. Despite tremendous scientific development, it is necessary to understand pay attention environmental, social, clinical consequences generated by developing a new product service. Bionanotechnology emerges as multidisciplinary transdisciplinary capable presenting strategies based on sustainability biocompatibility with living beings. Therefore,...

Infections caused by opportunistic and pathogenic microorganisms are a relevant cause of death within the hospital environment. Therefore, it is necessary to look for ways help minimize number infections acquired that Fabrics in constant contact with patient can be source contamination. An alternative development textiles prevent adhesion growth on their surface. Silver nanoparticles (AgNPs) recognized antimicrobial potential applied this purpose. This study reports simple, fast,...

In the history of mankind, it is feasible to find clothing and medical uses plants. Metals from bulk nano proportions were also somehow always present. Uses metallic nanoparticles have been increasing over years in applications such as textile industry, remarkably silver ones. The standard nanoparticle synthesis methods can be expensive cause damage environment. Due that fact, many efforts are being made elaborate ecofriendly routes provide good stability dispersion medium. this work, peel...

The objective of this work was to characterize the asphaltic cement penetration grade 30/45 (CAP 30/45) based on morphology nanostructures called "bee" structure observed and its modification when binder diluted in heptanes or toluene. CAP30/45, toluene heptane films studied by Atomic Force Microscopy (AFM) tapping mode showed typical films, but is not visible other films. While, completely dissolved bees, attacked with still presented some structures left.

In recent years, the search for inexpensive and eco-friendly synthesis routes has increased significantly. Nanotechnology biotechnology have established themselves as a major ally in building green technologies effective, stable, non-toxic nanomaterial synthesis. [1-3]. Thus, principles of bio nanotechnology are associated with waste prevention, maximizing atom economy, less use precursors hazardous safe chemicals low toxicity. Reaction conditions also advantageous due to methodologies...

Alternatives have been investigated to reduce the environmental impact of waste emitted in health field. The replacement conventional polymers with biodegradable hospital dressings is one. Corn starch a biopolymer, biodegradable, skin regenerating properties. Glycerol by-product biodiesel synthesis, and when polymerized, it becomes polyglycerol, polymer plasticizing characteristics. Therefore, blend shaped based on another promising natural compound: Euterpe oleracea extract. This extract...

As nanopartículas de prata têm sido cada vez mais utilizadas em aplicações industriais há muito tempo. Os métodos químicos síntese podem ser tóxicos e caros. Portanto, muitos estudos surgido para criar rotas ecologicamente corretas que forneçam boa dispersão estabilidade no meio extrativo. Espécies vegetais são investigadas a descoberta um novo dispersivo (AgNPs) sintetizadas por via verde. AgNPs estão dispersas extrato vegetal, plantas disponíveis Brasil. Neste trabalho foram folhas Melissa...