Recent Papers - Machine Learning Special Issue
Reviews/Accounts - last 5 years
2016, What Lies Ahead?
Vicente R. Almeida; Bruno Szpoganicz; Lei Chou; Kitty Baert; Annick Hubin; Steeve Bonneville
How to cite this articleFungal mycelium is a fundamental component of complex ecological networks with several symbiotic and dissipative properties on terrestrial biogeochemical matrix. The vast presence of mycelium is responsible for the control of chemical potential (e.g. pE and pH) of aqueous phase on soils, contributing to its response (buffering) capacity and the time controlling of physical-chemical conditions, as shown for the model of complex system S. Details are presented in the Article Equilibrium and Out-Of-Equilibrium Investigation of Proton Exchange and CuII and ZnII Complexation on Fungal Mycelium (Trametes hirsuta) by Vicente R. Almeida, Bruno Szpoganicz, Lei Chou, KittyBaert, Annick Hubin and Steeve Bonneville on page 15.
Gabriella Mendes; Geisa H. Aspesi; Ana L. A. Arruda; Maria T. V. Romanos; Carlos K. Z. Andrade
How to cite this article
New derivatives of phenytoin were synthesized, which showed anti-metapneumovirus (HMPV) activity.
Xue-Mei Gao; Bing-Kun Ji; Yin-Ke Li; Yan-Qing Ye; Zhi-Yong Jiang; Hai-Ying Yang; Gang Du; Min Zhou; Xiao-Xia Pan; Wen-Xing Liu; Qiu-Fen Hu
How to cite this article
New biphenyls isolated from Garcinia multiflora.
Vicente R. Almeida; Bruno Szpoganicz; Lei Chou; Kitty Baert; Annick Hubin; Steeve Bonneville
How to cite this article
Potentiometric equilibrium and out-of-equilibrium investigation and modeling are shown to be a powerful intermediate technology for transdisciplinary studies of soil complex system.
Benedicto A. V. Lima; Rodrigo S. Corrêa; Angelica E. Graminha; Aleksey Kuznetsov; Javier Ellena; Fernando R. Pavan; Clarice Q. F. Leite; Alzir A. Batista
How to cite this article
Three new RuII complexes with pyrimidine-2-thiolate, bipy and varying the diphosphinic ligands were obtained. These compounds are promising agents against Mycobacterium tuberculosis and breast cancer cells, MDA-MB-231.
Maiara T. Saraiva; Roberta Krüger; Rodolfo S. M. Baldinotti; Eder J. Lenardao; Cristiane Luchese; Lucielli Savegnago; Ethel A. Wilhelm; Diego Alves
How to cite this article
Quinoline-triazoyl carboxylates were synthesized in moderated to excellent yields and showed potential antioxidant activities.
Maiara O. Salles; William R. Araujo; Thiago R. L. C. Paixao
How to cite this article
A phenacetin-selective molecularly imprinted polymer (MIP) was synthesised and showed a high recognition ability for procaine and aminopyrine. In addition, the MIP also presented the ability to preconcentrate phenacetin and also some intermediates, such as acetaminophen.
Aline K. Gohara; Aloisio H. P.; Eliza M. Rotta; Gisely L. Stroher; Sandra T. M. Gomes; Jesui V. Visentainer; Nilson E. Souza; Makoto Matsushita
How to cite this article
Chia is a grain with high nutritional potential, mainly omega-3 contents, and this ingredient can be used in the development of several food products, such as bakery ones, especially cakes. Chemometrics presents interesting tools to assess the quality of the final product, and desirability function is a very useful method to determine the best formulation for all kinds of food stuffs.
Jorge Luís O. Santos; Oldair D. Leite; Anete D. M. Vieira; Djane S. Jesus; Marcos Y. Kamogawa
How to cite this article
A webcam is used as the detector in a flow analysis system, and the feasibility of the approach is demonstrated in the determination of nitrite and nitrate in natural waters.
Rafael R. Silva; Sandro V. de Lima; Gustavo H. R. C. Silva; Helinando P. de Oliveira; Maria D. L. Oliveira; Cesar A. S. Andrade
How to cite this article
Alginate-based hydrogel containing neomycin-loaded lipid nanovesicles was electrically characterized as a drug release system responsive to specific electrical potential.
José Eduardo Buiatte; Eloíza Guimaraes; Hery Mitsutake; Lucas Caixeta Gontijo; Douglas Queiroz Santos; Waldomiro Borges Neto
How to cite this article
Qualitative and quantitative evaluation of methyl cotton biodiesel in biodiesel/diesel blends using multivariate control charts and partial least squares.
Sabrina A. Beker; Maria Elisabete Machado; Gabriela P. S. Maciel; Rosângela Silva; Renato Cataluña; Elina B. Caramao; Fatima M. Bento
How to cite this article
Bio-oil contains promising compounds, such as phenolic compounds, active in the control of microbiological contamination during fuel storage. The figure shows that through two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC/TOF MS) we identified these phenolic compounds.
Azizollah Nezhadali; Zarrin Es'haghi; Shahriyar Bahar; Alireza Banaei; Jafar Abbasi Shiran
How to cite this article
Liquid membrane system for transport of Ag+ ions using 1,1'-(1,3-phenylene) bis (3-allylthiourea) as a carrier.
Luiz D. Marestoni; Ademar Wong; Gustavo T. Feliciano; Mary R. R. Marchi; César R. T. Tarley; Maria D. P. T. Sotomayor
How to cite this article
Theoretical calculation was used as a tool for the pre-selection of a suitable functional monomer able to interact with ciprofloxacin.
Cláudio L. Donnici; Carolina C. Souza; Mark A. Beinner; José Bento B. da Silva
How to cite this article
Chemical structure of a new alkaline solution called Universol®, developed by our research group. Universol® degrades most, if not all, organic and non-organic material. We used this alkaline solution to solubilize human serum and hair samples to determine Fe and Zn levels by graphite furnace atomic absorption spectrometry (GF AAS).
Francisco E. Jorge; Igor B. Ferreira; Danilo D. Soprani; Thieberson Gomes
How to cite this article
Second-order Douglas-Kroll-Hess (DKH2)-Becke three-parameter for exchange and Perdew-Wang 91 for correlation/valence double zeta quality basis set plus polarization functions-DKH optimized ground state structures for the neutral copper clusters, Cun (n = 2 - 8).
Talita C. T. Medeiros; Herbert J. Dias; Eliane O. Silva; Murilo J. Fukui; Ana Carolina F. Soares; Tapas Kar; Vladimir C. G. Heleno; Paulo M. Donate; Renato L. T. Parreira; Antônio E. M. Crotti
How to cite this article
The use of two-dimensional (2D) nuclear magnetic resonance (NMR) spectroscopy techniques for the unequivocal assignment of the 1H and 13C NMR data of two synthetic dihydrobenzofuran neolignans.
Mehdi Karimi; Ali M. H. Shabani; Shayessteh Dadfarnia
How to cite this article
Synthesis route of magnetic nanoparticles coated with ionic liquids and its application for solid phase extraction of CrVI.
Manoel J. A. Lima; Gláucia P. Vieira; Ridvan N. Fernandes; Auro A. Tanaka; Boaventura F. Reis
How to cite this article
Diagram of the setup for folic acid determination in pharmaceuticals by chemiluminescence.
Luciana C. Tavares; Tanize S. Fernandes; Vinicius Ilha; Alexandre T. Neto; Eveline W. dos Santos; Robert A. Burrow; Fábio A. Duarte; Erico M. M. Flores; Ubiratan F. Silva; Marco A. Mostardeiro; Ademir F. Morel
How to cite this article
A novel series of derivatives was synthesized from limonin using methodology in solution as well as in heterogeneous medium. The present study generated compounds that showed important antimicrobial activity.
Karina P. M. Frin; Verônica M. Nascimento
How to cite this article
The photophysical investigations showed that in the presence of bovine serum albumin (BSA), the metal-to-ligand-charge transfer (3MLCT) emission of the rhenium(I) complexes was quenched due to entrapment of the complex within the protein environment.
Andrey M. Rebelo; Maressa D. Dolzan; Melina Heller; Francisco C. Deschamps; Gilberto Abate; Gustavo A. Micke; Marco T. Grassi
How to cite this article
Matrix-matched calibration for accuracy improvement in determination of multiple pesticide residues in rice.
Manuel A. Escobar; Mauricio Valderrama; Constantin G. Daniliuc; Rene S. Rojas
How to cite this article
The synthesis and structure of new diazenecarboxamide ligands are described, as well as the subsequent reactions to give rise to new adducts in which B(C6F5)3 is coordinated to the carbonyl group. All new ligands and adducts are fully characterized by nuclear magnetic resonance (NMR), infrared (IR), elemental analysis and single-crystal X-ray diffraction methods.
Xiaoling Sun; Xinhui Zhang; Xiaoyan Cao; Xiaoyan Zhao
How to cite this article
CuCl2 loaded with activated carbon had synthesized and then utilized as a catalyst for the oxidation of cyclohexane with molecular oxygen as the oxidant and the tert-butylhydroperoxide as the co-oxidant under various conditions.
Robila Nawaz; Khurshid Ali; Nauman Ali; Alia Khaliq
How to cite this article
The supported liquid membrane (SLM) design for CrVI extraction shows the transport mechanism of Cr ions in the form of [CrO(O2)2.TOPO] (TOPO = trioctylphosphine oxide) complex from feed to strip phase through membrane phase.
Diego G. Rocha; Flavio A. Santos; Rodinei Augusti; Adriana F. Faria
How to cite this article
The systematic use of response surface methodology to optimize the extraction of fluoroquinolone antibiotics from animal tissues.
Online version ISSN 1678-4790 Printed version ISSN 0103-5053
Journal of the Brazilian Chemical Society
JBCS Editorial and Publishing Office
University of Campinas - UNICAMP
13083-970 Campinas-SP, Brazil
Free access