Results 31 to 40 of about 27,244 (165)

Electrodeposition of 4‐Benzenesulfonic Acid onto a Graphite‐Epoxy Composite Electrode for the Enhanced Voltammetric Determination of Caffeine in Beverages

Journal of Analytical Methods in Chemistry, Volume 2019, Issue 1, 2019., 2019
Caffeine is widely present in food and drinks, such as teas and coffees, being also part of some currently commercialized medicines, but despite its enhancement on several functions of human body, its exceeding use can promote many health problems. In order to develop new fast approaches for the caffeine sensing, graphite‐epoxy composite electrodes ...
Leonardo de A. Furtado, Mariana C. de O. Gonçalves, Carlos V. M. Inocêncio, Edilson M. Pinto, Daniela de L. Martins, Felipe S. Semaan, Josep Esteve-Romero   +6 more
wiley   +1 more source

Biocomposite of Cassava Starch Reinforced with Cellulose Pulp Fibers Modified with Deposition of Silica (SiO2) Nanoparticles

Journal of Nanomaterials, Volume 2015, Issue 1, 2015., 2015
Eucalyptus pulp cellulose fibers were modified by the sol‐gel process for SiO2 superficial deposition and used as reinforcement of thermoplastic starch (TPS). Cassava starch, glycerol, and water were added at the proportion of 60/26/14, respectively.
Joabel Raabe, Alessandra de Souza Fonseca, Lina Bufalino, Caue Ribeiro, Maria Alice Martins, José Manoel Marconcini, Lourival M. Mendes, Gustavo Henrique Denzin Tonoli, Chuan Wang   +8 more
wiley   +1 more source

Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition

Journal of Nanomaterials, Volume 2014, Issue 1, 2014., 2014
The sintering of different ZnO nanostructures by the thermal decomposition of zinc acetate is reported. Morphological changes from nanorods to nanoparticles are exhibited with the increase of the decomposition temperature from 300 to 500°C. The material showed a loss in the crystalline order with the increase in the temperature, which is correlated to ...
Alejandra Londono-Calderon, Fernando F. Jurado-Lasso, Juan D. Romero-Salazar, Nathaly Jurado-Lasso, J. Fabian Jurado, Shadi A. Dayeh   +5 more
wiley   +1 more source

Caracterização Mecânica de Compósitos Cimentícios Reforçados com Fibras de Politereftalato de Etileno Espiraladas

E&S Engineering and Science, 2017
Este trabalho apresenta um estudo sobre as propriedades mecânicas e de porosidade de compósitos reforçados com fibras de politereftalato de etileno (PET) espiraladas provenientes da reciclagem de garrafas de refrigerante.
Paloma Fonseca Rodrigues, Tatiana Portela Ribeiro, Alex Neves Junior   +2 more
doaj   +1 more source

Materiais compósitos no reforço de estruturas de betão : parte I : propriedades e técnicas [PDF]

, 2007
O presente artigo é o primeiro de duas publicações referentes à utilização de materiais compósitos no reforço de estruturas de betão. Os principais tipos de materiais compósitos utilizados no reforço estrutural são apresentados no presente trabalho ...
Barros, Joaquim A. O.
core  

Influence of Hornification Treatment and Fiber Length on the Performance of Recycled Polypropylene Composites

Polymer Composites, Volume 47, Issue 5, Page 4793-4803, 10 March 2026.
Study of the influence of hornification treatment and jute and mallow fiber length on the physical, thermal, and mechanical properties of recycled polypropylene (PP) composites. ABSTRACT The growing accumulation of plastic waste has driven its reuse in the development of new composites, with natural fibers emerging as promising reinforcements. However,
Raquel de Sousa Freire, Gabrielle Machado dos Santos, João de Almeida Melo Filho, Holmer Savastano Junior, Virginia Mansanares Giacon   +4 more
wiley   +1 more source

Bioresorbable Plates and Screws for Clinical Applications: A Review

Journal of Healthcare Engineering, Volume 3, Issue 2, Page 243-260, 2012., 2012
Bioresorbable implants are being widely used for fracture fixation in orthopaedic surgery and the market is expanding rapidly worldwide. Bioresorbable materials slowly dissolve in the human body, such that a second operation to remove the synthetic material is not needed. Bioresorbable implants have expanded the armamentarium of the surgeon, especially
Sandra Pina, José M. F. Ferreira
wiley   +1 more source

Novos materiais de construção à base de gesso e desperdícios industriais [PDF]

, 2007
Nos últimos anos, a economia sustentável a nível mundial tem prosperado significativamente e, cada vez mais, a qualidade de vida das populações pode ser considerada como intimamente relacionada com o uso de produtos alternativos na arquitectura e na ...
Camões, Aires, Eires, R., Jalali, Said
core  

Electrospun PA12 Nanofibers: Effect of Solution Parameters on Fiber Morphology

Macromolecular Symposia, Volume 414, Issue 6, December 2025.
ABSTRACT Carbon fiber‐reinforced polymers (CFRPs) are widely used in different industries due to their exceptional mechanical properties and low density. However, delamination and poor vibration damping capacity pose significant challenges to their application.
Rebecca Rosa, Emanuele Maccaferri, Tiziana Benelli, Tommaso Maria Brugo, Andrea Zucchelli, Loris Giorgini, Laura Mazzocchetti   +6 more
wiley   +1 more source

Preparation and Characterization of Zein and Zein‐Chitosan Microspheres with Great Prospective of Application in Controlled Drug Release

Journal of Nanomaterials, Volume 2011, Issue 1, 2011., 2011
Biomaterials applied as carriers for controlled drug delivery offer many advantages over the conventional systems. Among them, the increase of treatment effectiveness and also a significant reduction of toxicity, due to their biodegradability property, are some special features.
Vinícius Müller, Juliana Francis Piai, André Ricardo Fajardo, Silvia Luciana Fávaro, Adley Forti Rubira, Edvani Curti Muniz, Libo Wu   +6 more
wiley   +1 more source