Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Rita B. Figueira"'
Autor:
Rui P. C. L. Sousa, Rita B. Figueira, Emanuela Callone, Sandra Dirè, Susana P. G. Costa, Maria Manuela M. Raposo
Publikováno v:
Nanomaterials, Vol 13, Iss 17, p 2429 (2023)
Organic-inorganic hybrids (OIHs) are a type of material that can be obtained using the sol-gel process and has the advantages of organic and inorganic moieties in a single material. Polyetheramines have been widely used in the preparation of this typ
Externí odkaz:
https://doaj.org/article/b4af049ba8004fbfa9dcebae636104c3
Publikováno v:
Chemistry Proceedings, Vol 12, Iss 1, p 16 (2022)
Thiosemicarbazones are a versatile type of organic compounds which are known for their coordination ability with different types of analytes, due to the presence of sulfur and nitrogen heteroatoms. Therefore, the functionalization of thiosemicarbazon
Externí odkaz:
https://doaj.org/article/10f30264f0de4fe5a620fcd2b1ebe7fb
Publikováno v:
Engineering Proceedings, Vol 27, Iss 1, p 13 (2022)
Tributyltin (TBT) is an organic biocide used on antifouling paints to avoid biofouling on boats and submersed structures. It is toxic to a variety of aquatic organisms and was banned by the Rotterdam Convention in 1998. TBT sensing is an important is
Externí odkaz:
https://doaj.org/article/e4acd502c60148939d2a57ca6aee49cc
Publikováno v:
Chemosensors, Vol 10, Iss 10, p 384 (2022)
Anion sensing is a dynamic research field due to the biological and environmental importance of some organic or inorganic anions. Hydrazones show promising properties in the design of anion chemosensors due to the presence of proton donor and accepto
Externí odkaz:
https://doaj.org/article/379f030c839a4ec088ad56b4e07b34d6
Autor:
Rui P. C. L. Sousa, Rita B. Figueira, Bárbara R. Gomes, Sara Sousa, R. Cristina M. Ferreira, Susana P. G. Costa, M. Manuela M. Raposo
Publikováno v:
Nanomaterials, Vol 11, Iss 12, p 3401 (2021)
Organic–inorganic hybrids (OIH) are materials that can be easily synthesized by the sol–gel method and combine the advantages of organic and inorganic moieties within a single polymeric matrix. Imidazole derivatives are versatile organic compound
Externí odkaz:
https://doaj.org/article/e1423a37a5e04c32a8c5ac6b98fdf681
Publikováno v:
Chemistry Proceedings, Vol 8, Iss 1, p 44 (2021)
Organic–inorganic hybrids (OIH) are a versatile type of material that joins organic and inorganic moieties in a polymeric matrix and can be easily synthesized by the sol–gel method. OIH can be doped with chemosensors to yield an ion-sensitive pol
Externí odkaz:
https://doaj.org/article/4ace9137b33c4e6ea18aea89d8724a48
Autor:
Bárbara R. Gomes, Rita B. Figueira, Susana P. G. Costa, M. Manuela M. Raposo, Carlos J. R. Silva
Publikováno v:
Polymers, Vol 12, Iss 11, p 2671 (2020)
This manuscript describes the synthesis and characterization of five new organic–inorganic hybrid (OIH) sol-gel materials that were obtained from a functionalized siloxane 3-glycidoxypropyltrimethoxysilane (GPTMS) by the reaction with the new Jeffa
Externí odkaz:
https://doaj.org/article/9a86d94ad9b84d5d84a8f4791095706e
Autor:
Rita B. Figueira
Publikováno v:
Polymers, Vol 12, Iss 3, p 689 (2020)
The corrosion process is a major source of metallic material degradation, particularly in aggressive environments, such as marine ones. Corrosion progression affects the service life of a given metallic structure, which may end in structural failure,
Externí odkaz:
https://doaj.org/article/8d3a3383601c46a880b4e22123642a6d
Autor:
Rui P. C. L. Sousa, Bárbara Ferreira, Miguel Azenha, Susana P. G. Costa, Carlos J. R. Silva, Rita B. Figueira
Publikováno v:
Polymers, Vol 12, Iss 2, p 371 (2020)
Nowadays, concrete degradation is a major problem in the civil engineering field. Concrete carbonation, one of the main sources of structures’ degradation, causes concrete’s pH to decrease; hence, enabling the necessary conditions for corrosion r
Externí odkaz:
https://doaj.org/article/0902dc85da7d46e1868436739c2326dd
Autor:
Rita B. Figueira
Publikováno v:
Applied Sciences, Vol 7, Iss 11, p 1157 (2017)
Several methods for corrosion monitoring of reinforced concrete structures (RCS) have been proposed in the last few decades. These systems may be used either in new, existing or repaired structures. The corrosion monitoring can be performed by differ
Externí odkaz:
https://doaj.org/article/4eeb2693888f4406981de133d1a62aa5