A5001011095- Nanomaterials for catalytic reactions
- Graphene and Nanomaterials Applications
- Adsorption and biosorption for pollutant removal
- Graphene research and applications
- Analytical chemistry methods development
- Nanoparticle-Based Drug Delivery
- Pharmacological Effects and Toxicity Studies
- Seed Germination and Physiology
- Electrochemical sensors and biosensors
- Pigment Synthesis and Properties
- Graphite, nuclear technology, radiation studies
- Environmental Sustainability and Education
- Carbon and Quantum Dots Applications
- Geography and Environmental Studies
- Environmental Chemistry and Analysis
- Agricultural and Food Sciences
- Electrohydrodynamics and Fluid Dynamics
- Chemistry Education and Research
- Gas Sensing Nanomaterials and Sensors
- Nanoparticles: synthesis and applications
- Silicon Effects in Agriculture
- Ionic liquids properties and applications
- Magnetic and Electromagnetic Effects
- Characterization and Applications of Magnetic Nanoparticles
- Dyeing and Modifying Textile Fibers
Universidade Franciscana
2020-2024
Brazilian Center for Research in Energy and Materials
2024
Franciscan University of Steubenville
2024
Instituto de Desenvolvimento Sustentável Mamirauá
2021
Instituto Superior Politécnico Metropolitano de Angola
2021
Herein, tetracycline adsorption employing magnetic chitosan (CS·Fe3O4) as the adsorbent is reported. The was synthesized by co-precipitation method and characterized through FTIR, XRD, SEM, VSM analyses. experimental data showed that highest maximum capacity reached at pH 7.0 (211.21 mg g-1). efficiency of in removal dependent on pH, initial concentration adsorbate, dosage. Additionally, ionic strength a significant effect process. equilibrium kinetics studies demonstrate Sips Elovich models...
Silica nanoparticles have been widely explored in biomedical applications, mainly related to drug delivery and cancer treatment. These excellent properties, high biocompatibility, chemical thermal stability, ease of functionalization. Moreover, silica is used coat magnetic protecting against acid leaching aggregation as well increasing cytocompatibility. This review reports the recent advances silica-based focusing on delivery, target systems, their use magnetohyperthermia resonance imaging....
Graphene oxide (GO) is a 2D material derived from graphene, having hexagonal arrangement crystal structure together with the addition of various oxygenated functional groups, epoxides, alcohols, ketones, carbonyls and carboxyls. Hummers Offeman, reported in 1958 synthesis method that still employed to present day, only few adaptations. Thus, graphite oxidized by treatment potassium permanganate sodium nitrate concentrated sulfuric acid. Recently our research group evaluated several...
This paper reports a high efficiency uptake of captopril (CPT), employing magnetic graphene oxide (MGO) as the adsorbent. The (GO) was produced through an oxidation and exfoliation method, magnetization technique by co-precipitation method. nanomaterials were characterized FTIR, XRD, SEM, Raman, VSM analysis. optimal condition reached GO·Fe3O4 at pH 3.0 (50 mg adsorbent 50 L−1 CPT), presenting values removal percentage maximum adsorption capacity 99.43% 100.41 g−1, respectively. CPT...
Recently, the incorporation of magnetic nanoparticles in nanomaterials has been showning to be very efficient, which leads several scientific studies being carried out. Magnetic silica have excellent properties, enabling application different fields including nanoscience. In this context, work aimed synthesize and characterize nanosilica with order evaluate cytotoxicity L929 cell line. The methodology for proved fast effective obtaining (Nano SiO2.Fe3O4). Through characterization FTIR,...
Among biotic and abiotic stresses, the most restrictive for plant distribution is salt stress, where different concentrations might exert harmful effects on seed germination. Recently, nanomaterials were used successfully to mitigate these indicating that plants may be able develop normally in adverse conditions. The aim of this study was examine graphene oxide (GO) germination Persian clover seedlings under stress Following sown substrate paper, seeds tested after exposure (0, 125, 250, or...
O objetivo deste estudo foi analisar o efeito do óxido de grafeno na germinação sementes trevo Persa e seu possível atenuante no estresse por alumínio. As foram semeadas em papel substrato testadas concentrações variadas grafeno, alumínio e/ou + concomitantemente. Em seguida, armazenados câmara à temperatura 20 °C fotoperíodo 12 h. Os nanomateriais caracterizados espectroscopia Raman, difração raios X, transformada Fourier microscopia eletrônica varredura. Foram avaliados a das os parâmetros...
The increase in the use of graphene oxide (GO) allows different studies several fields, and raise concerns about its possible toxic effect on environment, especially early growth plants. Thus, this study aimed to evaluate GO germination Persian clover buckwheat seeds. seeds were placed germitest paper concentrations (0, 125, 250, 500 mg L-1) kept a chamber at 20 °C (photoperiod 12 hours). evaluated parameters seed seedling (length dry mass). Graphene did not show effects initial both species...
O óxido de grafeno reduzido (rGO) é um nanomaterial derivado do grafeno, que apresenta alta área superficial, estabilidade química e extensa difusão ligações conjugadas π. (GO) pode ser a rGO através diferentes protocolos, porém, metodologias comumente aplicadas envolvendo o uso reagentes químicos podem ter efeitos desvantajosos ao meio ambiente. Considerando as excelentes propriedades rGO, este estudo teve como objetivo reduzir GO por estratégias verdes sustentáveis utilizando cenoura,...
The exceptional properties of graphite, such as excellent thermal and electrical conductivity, corrosion resistance, allow this material to be widely explored in the industrial sector an anatomic component different applications for instance lithium batteries. Magnetic nanoparticles, magnetite, presented biocompatibility, biodegradability, chemical stability, possibility formation nanocomposites. Thus, work proposed magnetization graphite through a co-precipitation method that employs FeCl2...
Nos últimos anos os polímeros têm se mostrado muito versáteis e, em virtude disso, inúmeros trabalhos na área científica vêm sendo realizados. A nanocelulose é um biopolímero de origem natural, obtida através diferentes técnicas, sejam estas químicas, físicas ou biológicas. Entretanto, a literatura mostra-se deficiente que reportam sua incorporação nanopartículas magnéticas. Neste sentido, este trabalho teve como objetivo obtenção fácil e rápida da celulose nanocristalina magnética, para...