Zobrazeno 1 - 10
of 98
pro vyhledávání: '"A. M. Laranjeira"'
Publikováno v:
Química Nova, Vol 32, Iss 3, Pp 672-678 (2009)
The importance of chitosan has grown significantly over the last two decades due to its renewable and biodegradable source, and also because of the recent increase in the knowledge of its functionality in the technological and biomedical applications
Externí odkaz:
https://doaj.org/article/621cfde2fc3c4e049140ced1c8805f1f
Autor:
R. Laus, , , , and, A. dos Anjos, R. E. H. M. B. Osório, A. Neves, M. C. M. Laranjeira, V. T. de Fávere
Publikováno v:
Pakistan Journal of Analytical & Environmental Chemistry, Vol 9, Iss 2, Pp 58-63 (2008)
In the present study, the use of N,N’,N,N’-bis[(2-hydroxy-3,5-di-tert-butylbenzyl)(2-pyridylmethyl)]-ethylenediamine (H2L) as ligand was evaluated in the liquid-liquid (water-chloroform) extraction of Cd(II), Cu(II), Mn(II), Ni(II) and Zn(II). Ex
Externí odkaz:
https://doaj.org/article/c4fb3be6997d45f39cbdda4c9b393aad
Publikováno v:
Polímeros, Vol 16, Iss 2, Pp 116-122 (2006)
The aim of this study was to impregnate the chelating agent 3,3-bis-N,N,bis-(carboxymethyl)aminomethyl-o-cresolsulfonephthalein in chitosan and to investigate the adsorption of Cu(II) ions. The chemical modification was confirmed by FTIR spectrometry
Externí odkaz:
https://doaj.org/article/4df11fb2489c42d3909dbfa33a96b1bf
Autor:
Rogério Laus, Mauro C. M. Laranjeira, Amarildo O. Martins, Valfredo T. Fávere, Rozângela C. Pedrosa, Jean C. Benassi, Reginaldo Geremias
Publikováno v:
Química Nova, Vol 29, Iss 1, Pp 34-39 (2006)
Externí odkaz:
https://doaj.org/article/60fdb8101e4c4eaa8b538ba9a0f62a84
Publikováno v:
Polímeros, Vol 15, Iss 3, Pp 218-223 (2005)
O sal quaternário de quitosana foi sintetizado com cloreto de glicidil trimetil amônio. A modificação química foi caracterizada por espectrometria no IV, RMN de 13C e ¹H, e mmol/g de grupos quaternários presentes na matriz polimérica por cond
Externí odkaz:
https://doaj.org/article/1c260f76b53a416ca58132dffa345472
Publikováno v:
Polímeros, Vol 15, Iss 1, Pp 6-12 (2005)
In this work chitosan microspheres were prepared by the simple coacervation method and crosslinked using epichlorhydrin or glutaraldehyde for the controlled release of diclofenac sodium. The effects of the crosslinking agents on chitosan microspheres
Externí odkaz:
https://doaj.org/article/1d2a76cec5b44b2b9cdc19afe55aa6bf
Autor:
A. M. Laranjeira, Rediat Tewolde, Roger Daniel, Sarah Phillips, Timothy Chambers, Ali Al-Shahib, Aleksey Jironkin, Georgia Kapatai, Juliana Coelho, C. Dhami, Anthony Underwood, Victoria J. Chalker
Publikováno v:
Clinical Microbiology and Infection. 25:96-101
Objectives To analyse genomic sequence data of referred Streptococcus pyogenes isolates and those pertaining to selected elderly/nursing care or maternity clusters from 2010 to 2015 to ascertain genomic differences between epidemiologically related i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74cea572d55ac3225bf8fe85fca8b06d
https://doi.org/10.1016/j.cmi.2018.04.011
https://doi.org/10.1016/j.cmi.2018.04.011
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 73, Iss 4, Pp 525-532 (2001)
Bioceramic composites were obtained from chitosan and hydroxyapatite pastes synthesized at physiological temperature according to two different syntheses approaches. Usual analytical techniques (X-ray diffraction analysis, Fourier transformed infrare
Externí odkaz:
https://doaj.org/article/71c0163bcc2a471587f2383a27251407
Autor:
Atche Josué, Mauro C. M. Laranjeira, Valfredo T. Fávere, Irene Yukiko Kimura, Rozangela C. Pedrosa
Publikováno v:
Polímeros, Vol 10, Iss 3, Pp 116-121 (2000)
Microesferas de quitosana com grau de desacetilação médio de 85,6% foram enxertadas com poli(ácido acrílico) para aplicação como sistemas de liberação controlada de fármacos. O corante eosina impregnado nas microesferas de quitosana modific
Externí odkaz:
https://doaj.org/article/20c7c69a9a7b4770b76ff9621260512f
Publikováno v:
Química Nova, Vol 23, Iss 4, Pp 441-446 (2000)
Calcium phosphate compounds such as Hydroxyapatite (HAp) were prepared by hydrothermal synthesis with phycogenic CaCO3 as starting material. Material obtained was characterised by usual methods (XRD, FTIR, TG, N2-adsorption, SEM and EDX) in order to
Externí odkaz:
https://doaj.org/article/52491a68138e4bc89ea47227d0270b44