Yue Ma ; Yongjin Peng
; Shuang Hou
Simulated UV-Vis absorption spectrum of probe and sulfite adduct based on PBE0/def2TZVPD method.
Luana S. P. Barros ; Rian M. Viana; Ellen N. S. da Cruz; Maria Nancy N. de Lima; Rosa Helena V. Mourão; Joyce Kelly R. da Silva
; Pablo Luis B. Figueiredo
The figure presents the methodological flow of the study of the volatile chemical constituents of Myrciaria tenella. The botanical identification of the species was performed, followed by the extraction of volatile compounds by hydrodistillation. The samples were analyzed by gas chromatography coupled with mass spectrometry to identify (E)-caryophyllene, δ-cadinene, α-calacorene, caryophyllene oxide, and 1-epi-cubenol. Finally, the data obtained were subjected to multivariate statistical analyses.
Thiago F. da Costa ; Otavio M. Sobrinho
; Amanda Karine C. Ribeiro
; Angie Natali Z. Ovalle
; Rizzieri Pedruzzi
;
Taciana T. A. Albuquerque ; Eduardo M. Martins
Analysis of input files from Atmospheric Global Emission Inventory in the State of Rio de Janeiro.
Pedro Victor A. Pessanha ; Antonio Carlos Sant'Ana
Probing tailored interactions between doxorubicin and surface modified gold nanoparticles by surface-enhanced Raman scattering (SERS) spectroscopy.
Amanda C. O. D. Barros ; Ivo D. L. Silva; Adriano N. Simões; José F. Q. Pereira
; Andréa M. S. S. Brito
; Glória M. Vinhas
Representation of the bacterial cellulose (BC) production process using pulp juice from Cereus jamacaru DC fruit fermented with Komagataeibacter hansenii. The steps include the raw fruit, preparation of the medium, and the wet and dry forms of BC.
Laís T. de Marco; Fernando A. de Oliveira; Karine Panico; Anabella P. Rosso; Michelle Nascimento-Sales; Mariana M. R. Andrade; Marcelo A. Christoffolete; Lidiane Meier; Ismael C. Bellettini ; Fernando C. Giacomelli
Amino acid-modified branched polyethyleneimines enable safer and more efficient deoxyribonucleic acid (DNA) delivery via polyplex formation, offering novel possibilities, including ocular gene therapy.
Jennifer A. O. Lima; Helena G. Ramos; Junior A. Chaves; Claudete C. do Nascimento; Luiz Henrique K. Queiroz-Junior;
Danielle F. da Silva; Jéssica Cristina Amaral; Maria Fátima das Graças F. da Silva ; Maria da Paz Lima
Phytochemical study of Ocotea neesiana demolition wood led to the purification of eight compounds. The sesquiterpene α-cadinol and the diterpene 16-methylesteritol A exhibited antibacterial potential against Xanthomonas citri subsp. citri.
Angélica G. Oliveira ; Glaucio José Gomes
; Lucas Spessato
; Paulo Rodrigo S. Bittencourt
; Janine C. Padilha
;
Caroline C. S. Gonçalves
Cigarette filters were pyrolyzed to obtain bio-oil and biochar aiming at efficient CO2 adsorption.
Paulo Roberto dos Santos ; Manuela Merlin
; Fávero R. Paula
; Sidnei Moura
This study highlights the importance of combining in silico analysis with experimental techniques, emphasizing the need for careful handling of simvastatin, particularly concerning the formation of hydrolysis products, oxidation, and light exposure.
Charles-Oneil L. Crites ; José Carlos Netto-Ferreira; Geniece L. Hallett-Tapley; Samuel Banville; Luc Tremblay
Lignin depolymerization was done using an Au/Pd@TiO2 via three subsequent reactions (alcohol oxidation, photo-cleavage and hydrogenolysis) under light irradiation (UV or green light).
Aline D. Assunção ; Diogo M. de Jesus
; Teodoro R. Terra; Raquel G. Rocha
; José A. M. G. Costa; Luiz A. J. da Silva;
Guilherme L. Fernandes; Alessandro G. C. Dias; Rodrigo A. A. Muñoz ; Sidnei G. Silva
; Eduardo M. Richter
A low-cost, 3D-printed liquid handling robot enables autonomous calibration, precise analytical management, and advanced flow analysis, integrating electrochemical and colorimetric detection for unprecedented automation.
Total access: 187
Jorge Luiz dos Santos; Iterlandes Machado Junior; Gabriel Henrique Sperandio; Gessica do C. Dias; Anderson Dias;
Geraldo M. de Lima; Renata P. L. Moreira
The platinum nanoparticles (Pt NPs)/MnWO4 composite was synthesized and showed to be an efficient, reusable catalyst for H2 generation via NaBH4 hydrolysis.
Wellerson Wagner B. Silva ; Luiz Fernando S. Novaes
; Luiz Henrique C. Adriano
; Naiara Norberto T. de Oliveira
;
Wilson R. Braz ; Paula R. Chellini
; Marcone Augusto L. de Oliveira
A method was developed and validated, by the application of 32 factorial, for the monitoring of azithomycin (AZM) and its impurities.
José C. I. Silva ; Felipe M. A. Silva
; Gilvan F. Silva
; Hector H. F. Koolen
A comprehensive review of the chemistry and biological activities of koningins and related fungal octaketides.
Stamber A. Ramírez-Revilla ; Oscar A. Serrano Ollancaya
; Gustavo E. F. Vilcapaza Condori
; Derly D. Ortiz-Romero
Application of ultrasound and conventional methods to alpaca fibers, demonstrating the absorption of the dyes Synozol Red K3BS and Novacron Navy FN-BN.
Luíza M. de Macêdo; Quezia V. F. S. da Fonseca; Iris C. dos Santos; Quézia L. S. Sampaio; Janine F. S. Silva; Moyses F. de Araujo Neto; Aníbal F. Santos Júnior ; Erika M. O. Ribeiro; Franco H. A. Leite; Humberto F. de Freitas
; Samuel S. R. Pita
; André L. B. Teles
Flowchart summarizing the steps used to conduct virtual screening and identify potential selective inhibitors of Leishmania chagasi dihydrofolate reductase-thymidylate synthase (LcDHFR-TS).
Matheus C. Castro; Eloize S. Alves; Bruno H. F. Saqueti; Cintia Stefhany R. Ferreira; Joana M. V. Zacarias; Jeane E. L. Visentainer; Francieli S. O. Trombelli; Sueli M. T. Ichisato; Oscar O. Santos ; Jesui V. Visentainer
Study of the energy content, fatty acid composition and cytokines tumor necrosis factor alpha (TNF-α) and interleukin-10 (IL-10) content in mature human milk at different breastfeeding intervals (foremilk, middle milk, and hindmilk).
Giselle V. Sousa ; Vânia L. G. Teles
; Luzia V. Modolo
; Rodinei Augusti
; Letícia M. Costa
Paper-spray mass spectrometry for rapid detection of phytochelatins in golden flaxseed roots exposure to arsenate and selenite.
Leonard R. S. de Souza ; Sergio M. Nunomura
; Gislene A. C. Zilse
; Marcos B. Machado
; Rita de Cássia S. Nunomura
Nuclear magnetic resonance (NMR), mass spectrometry (MS) and chemometric analyses have shown the link between chemical diversity and the geographic origin in Melipona seminigra geopropolis.
Thayllan T. Bezerra ; Mayara O. Almeida
; Pergentino N. Maia Júnior
; Emerson Y. A. Sousa
; Maria K. A. Ferreira
;
Antonio W. Silva ; Giuseppe Mele
; Emmanuel S. Marinho
; Hélcio S. Santos
; Jane E. S. A. Menezes
; Diego Lomonaco
; Selma E. Mazzetto
Exploring the biological activities of Ag-cashew nut shell liquid (CNSL) based nanoparticles and the anxiolytic effects in adult zebrafish via participation of GABAergic system.
Tereza G. F. Gomides; Victor C. Marques; Priscila P. Silva; Gabriela R. R. Fernandes ; Nathany F. Jammal; Flávia S. Marques
;
Ana P. M. Barboza ; Paula M. A. Vieira
; Jacqueline de Souza
; José D. de Souza Filho
; André L. M. Ruela
Polymeric nanoparticles were synthesized to allow the adsorption of donepezil, resulting in the modified release of this drug following its swelling, through a mechanism related to anomalous diffusion from the polymeric matrix.
Mariana T. C. Campos ; Lenize F. Maia
; Howell G. M. Edwards
; Luiz F. Cappa de Oliveira
The figure shows the Raman spectra of different stages of pepper ripening and the marker bands of natural pigments, in addition to the chemical structures of compounds present in them.
The calculated adsorption results with two vibrational modes treated as two-dimensional translation reproduce experimental data better.
Antonio Machado Netto ; José Pedro R. Ferreira
; Keivison A. Monteiro
; Caio S. de Lima
; Jodieh O. S. Varejão
;
Eduardo Vinicius V. Varejão ; Natália S. Renato
; Renata P. L. Moreira
Biochar production from industrial sludge and cosmetic waste promotes the circular economy while removing contaminants from aqueous effluents.
Bianca R. Brito ; Lucas G. Fachini
; Kahoana Postal
; Rúbia Camila R. Bottini
; Eduardo L. de Sá
; Sônia F. Zawadzki
; Giovana G. Nunes
A mixed valence polyoxovanadate and poly(vinyl chloride) forms green homogeneous films, studied by molecular docking.
Nelson Durán ; Wagner J. Fávaro
; Symone C. de Castro
; Gerson Nakazato
; Guillermo R. Castro
; Giselle Z. Justo
;
Ljubica Tasic
Violacein is a natural purple pigment that shows a wide range of bioactivity. The current review addresses different aspects of violacein, such as its production, purification, and biological activities, aiming to enhance its viability for technological applications.
Arthur R. de Souza; Julia C. F. Ximenes; Caio V. N. Borges; Samir F. A. Cavalcante; Marcio Fronza; Thiago Barth; Shaft C. Pinto ; Fernando M. Santos Jr.
In this paper, the absolute configuration of (+)-hirsutanonol was unambiguously determined by means of optical rotation (OR) and electronic circular dichroism (ECD) chiroptical properties supported by quantum chemical calculations.
Paulo Victor P. dos Santos; Nícolas Glanzmann; Adilson D. da Silva; Fernando R. Pavan; Christian S. C. Canales; Cesar A. Roque‑Borda; Pedro P. Corbi; Douglas H. Pereira; Kaíque A. D'Oliveira; Alexandre Cuin
Biological results of N-acylhydrazones from isoniazid and aldehydes showed silver(I) complexes with N-acylhydrazones as promising antitubercular drugs with high selectivity index.
Emilly C. Silva; Aluísio C. Pinto; Charlie G. Gomes; Raimundo R. Passos; Consuelo A. da Frota; Leandro A. Pocrifka
This figure represents the physical grinding modifications performed on graphite, using parameters obtained through multivariate analysis, resulting in capacitive graphene and electrochemical tests.
Neiva Maria N. Oliveira; Benedito B. Farias Filho ; Christian Dário S. de Melo; Wilkins O. de Barros
This study investigates the technological reconstruction and chemical composition of fine earthenware from the 18th and 19th centuries in Piauí.
Aline M. Arouca ; Victor Emmanuel D. Aleixo
; Maurício L. Vieira
; Márcio Talhavini
; Ingrid T. Weber
Quantification of polycyclic aromatic hydrocarbons (PAHs) deposited on the personal protective equipment (PPE) of firefighters, during firefighting training.
Maria Fernanda A. V. Matos; Gabriela F. P. de Souza; Anna Paula R. de Queiroga; Airton G. Salles Jr.; Susanne Rath
N-Nitrosamines in cosmetic thermal waters: market analysis and analytical method.
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
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