Doutora em Ciências, pela UNICAMP, onde desenvolveu pesquisa com ênfase em Geoquímica do Petróleo. É mestre em Química Orgânica pela UFPI e tem formação em Química, também pela UFPI. Atualmente é Professora Associada da Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), lotada no Laboratório de Engenharia e Exploração de Petróleo (LENEP), pertencente ao Centro de Ciência e Tecnologia (CCT) onde atualmente exerce o cargo de Chefe do LENEP (2024-2027) e participa como membro do Conselho de Centro (CONCEN) e do Conselho Universitário (CONSUNI) . É bolsista de Produtividade em Desenvolvimento Tecnológico e Extensão Inovadora do CNPq (DT-2) desde 2021. Atua como Professora permanente dos Programas de Pós-Graduação em Engenharia de Reservatório e de Exploração do LENEP e Clima e Energia do LAMET.
RESEARCH, TEACHING, or OTHER INTERESTS
Geochemistry and Petrology, Organic Chemistry, Environmental Science, Environmental Chemistry
Forensic Geochemistry Reveals International Ship Dumping as a Source of New Oil Spill in Brazil’s Coastline (Bahia) in Late 2023 Laercio L. Martins, Vinícius B. Pereira, Adriana P. Nascimento, Rufino Neto A. Azevedo, André H. B. Oliveira, et al. Environmental Science and Technology, 2024 In the present study, we applied forensic geochemistry to investigate the origin and fate of spilled oils like tarballs stranded at the beaches of Bahia, in northeastern Brazil, in September 2023, based on their fingerprints. Saturated and aromatic compounds were assessed by gas chromatography, and the oceanic surface circulation patterns were deciphered to determine the geographic origin of the spill. Contamination by petroleum represents an enormous threat to the unique, species-rich ecosystems of the study area. The geochemical fingerprint of the oil spilled in 2023 did not correlate with those of previous events, including the one in 2019, the one in early 2022 in Ceará, and an extensive spill across the Brazilian Northeast in late 2022. However, the fingerprint did correlate with crude oils produced by Middle Eastern countries, most likely Kuwait. The oil of the 2023 spill had a carbonate marine origin from early mature source rocks. These findings, together with the moderate weathering of the 2023 tarballs and the ocean circulation patterns at the time of the event, indicate that the oil was discharged close to the shore of Brazil, to the east or southeast of Salvador, by a tanker on an international route in the South Atlantic.
Chromans as signals of freshwater incursions promoting salinity stratification in the lower Permian Irati Formation, Paraná Basin 29th International Meeting on Organic Geochemistry Imog 2019, 2019
Effects of waterflooding and meor recovery techniques on the polar composition of petroleum assessed by ESI (+) FT-ICR MS 29th International Meeting on Organic Geochemistry Imog 2019, 2019
A new crude-glycerin-based drilling fluid Gabriel V.C. Malgaresi, Alexandre S.L. Vaz, Cleysson C. Corrêa, Georgiana F. Cruz, Rosana F.T. Lomba, et al. Journal of Petroleum Science and Engineering, 2018
Emulsion-Investigating the Chemical Composition of the Interfacial Material in Water/Oil Emulsion DC da Silva, JV Pardo, LL Martins, DM Franco, GM Dufrayer, BG Vaz, ... Offshore Technology Conference Brasil, D021S023R008 , 2025 2025 Citations: 1
Nanoparticle-Enhanced Hydrophobic Vegetable Loofah for Eco-Friendly Remediation of Oil Spill at Different Weathering Stages LCM Cantagesso, GEP Mendes, A Tofanello, LL Martins, BD Lima, ... IMOG 2025 2025 (1), 1-2 , 2025 2025
An Assay on Unusual Biomarkers Identification and Diagenesis of Immature Marine Shales from the Pimenteiras Formation, Brazil VB Pereira, LL Martins, BQ Araújo, HJPS Ribeiro, GF da Cruz, ... IMOG 2025 2025 (1), 1-2 , 2025 2025
Forensic geochemistry reveals international ship dumping as a source of new oil spill in Brazil’s coastline (Bahia) in late 2023 LL Martins, VB Pereira, AP Nascimento, RNA Azevedo, AHB Oliveira, ... Environmental Science & Technology 58 (21), 9328-9338 , 2024 2024 Citations: 12
Impacts of a new drilling fluid invasion on electrical resistivity and acoustic velocity measurements RR Baggieri, AAG Carrasquilla, MAR Ceia, ASL Vaz Jr, CC Corrêa, ... Energy & Fuels 38 (5), 4752-4768 , 2024 2024 Citations: 1
Evaluating the efficiency of demulsifiers for water-in-oil emulsions and the influence on the chemical composition of the dehydrated petroleum JVQ Pardo, DC da Silva, LL Martins, AA da Silva, GF da Cruz SPE Brazil Flow Assurance Technology Congress. Rio de Janeiro , 2024 2024 Citations: 1
Influence of the cationic degree and molar mass of modified starches on their physicochemical properties and capability to enhance the oil recovery process LLGC de Araujo, LS Cescon, GF Da Cruz, RSV Nascimento Carbohydrate Polymers 323, 121388 , 2024 2024 Citations: 9
Assessment of Crude Oil Polar Components Onto Carbonate After Waterflooding and Modified Cationic Starch Injection (EOR) L Gicovate, L Araújo, G Da Cruz, D Franco, B Vaz IMOG 2023 2023 (1), 1-2 , 2023 2023
Detection of early-middle Devonian biotic crises in east Gondwana, Paraná Basin, Brazil: an organic geochemical approach LR Rocha, ES de Souza, HJPS Ribeiro, DMM Franco, T Covas, BG Vaz, ... Organic Geochemistry 181, 104629 , 2023 2023 Citations: 13
Weathering impacts on petroleum biomarker, aromatic, and polar compounds in the spilled oil at the northeast coast of Brazil over time BD Lima, LL Martins, VB Pereira, DMM Franco, IR Dos Santos, JM Santos, ... Marine Pollution Bulletin 189, 114744 , 2023 2023 Citations: 30
Implications of microbial enhanced oil recovery and waterflooding for geochemical interpretation of recovered oils LGP Sodre, LL Martins, LLGCDE Araujo, DMM Franco, BG Vaz, W Romao, ... Anais da Academia Brasileira de Ciências 94, e20211433 , 2022 2022 Citations: 1
Directly mapping the spatial distribution of organic compounds on mineral rock surfaces by DESI and LAESI mass spectrometry imaging I Pereira, RRF Ramalho, LIL Maciel, DVA de Aguiar, Y Trindade, ... Analytical Chemistry 94 (40), 13691-13699 , 2022 2022 Citations: 13
Comprehensive assessment of petroleum composition and interfacially active species to improve the understanding of water-in-oil emulsion stability TV Isidorio, MVP Chaiben, TG da Silva, VB Pereira, LL Martins, ... Extraction, 5 , 2022 2022
The epidemiology of sepsis in paediatric intensive care units in Brazil (the Sepsis PREvalence Assessment Database in Pediatric population, SPREAD PED): an observational study DC de Souza, JG Martin, VS Lanziotti, CF de Oliveira, C Tonial, ... The Lancet Child & Adolescent Health 5 (12), 873-881 , 2021 2021 Citations: 69
New Paleoenvironmental Proxies for the Permian Irati Black Shales Based on Acidic O1 and O2 Compounds Assessed by FT-ICR-MS LL Martins, H Schulz, M Noah, S Pötz, HJPS Ribeiro, GF da Cruz 30th International Meeting on Organic Geochemistry (IMOG 2021) 2021 (1), 1-2 , 2021 2021
SIGNIFICANCE OF ACIDIC POLAR SPECIES ASSESSED BY FT-ICR MS TO REVEAL GEOCHEMICAL INFORMATION OF OILS FROM THE SERGIPE-ALAGOAS BASIN L Sakai, MA Pudenzi, CA Nascimento, H Schulz, GF da Cruz, LL Martins 30th International Meeting on Organic Geochemistry (IMOG 2021) 2021 (1), 1-2 , 2021 2021 Citations: 1
Monitoring chemical compositional changes of simulated spilled Brazilian oils under tropical climate conditions by multiple analytical techniques BD Lima, LL Martins, ES de Souza, MA Pudenzi, GF da Cruz Marine pollution bulletin 164, 111985 , 2021 2021 Citations: 18
AVALIAÇÃO GEOQUÍMICA DA EXTENSÃO DA BIODEGRADAÇÃO DE ÓLEOS DA BACIA DE SANTOS VIA PETROLEÔMICA POR ESI (-) FT-ICR MS LL Martins, CA do Nascimento, GF da Cruz, MA Pudenzi, L Sakai Revista Femass 4 (1), 76 a 93-76 a 93 , 2021 2021
Aplicação dos cromans na avaliação da salinidade e influxo de água doce em folhelhos da Formação Irati, Bacia do Paraná L Lopes Martins, C Adolphsson do Nascimento, G da Cruz, ... Fósseis Moleculares e Aplicações em Geoquímica Orgânica-Molecular Fossils … , 2021 2021
Isolation, biodegradation ability and molecular detection of hydrocarbon degrading bacteria in petroleum samples from a Brazilian offshore basin SP de Vasconcellos, E Crespim, GF da Cruz, DB Senatore, KCM Simioni, ... Organic Geochemistry 40 (5), 574-588 , 2009 2009 Citations: 78
The epidemiology of sepsis in paediatric intensive care units in Brazil (the Sepsis PREvalence Assessment Database in Pediatric population, SPREAD PED): an observational study DC de Souza, JG Martin, VS Lanziotti, CF de Oliveira, C Tonial, ... The Lancet Child & Adolescent Health 5 (12), 873-881 , 2021 2021 Citations: 69
Typification and quality control of the Andiroba (Carapa guianensis) oil via mass spectrometry fingerprinting EC Cabral, GF da Cruz, RC Simas, GB Sanvido, LV Goncalves, RVP Leal, ... Analytical Methods 5 (6), 1385-1391 , 2013 2013 Citations: 62
Avaliação dietética em creches municipais de Teresina, Piauí, Brasil GF Cruz, RS Santos, CMRG Carvalho, GC Moita Revista de Nutrição 14, 21-32 , 2001 2001 Citations: 62
Assessing Biodegradation of Brazilian Crude Oils via Characteristic Profiles of O 1 and O 2 Compound Classes: Petroleomics by Negative-Ion Mode Electrospray … LL Martins, MA Pudenzi, GF da Cruz, HDL Nascimento, MN Eberlin Energy & Fuels 31 (7), 6649-6657 , 2017 2017 Citations: 60
Could petroleum biodegradation be a joint achievement of aerobic and anaerobic microrganisms in deep sea reservoirs? GF da Cruz, SP de Vasconcellos, CFF Angolini, BM Dellagnezze, ... AMB express 1 (1), 47 , 2011 2011 Citations: 60
Microbial enhanced oil recovery using a biosurfactant produced by Bacillus safensis isolated from mangrove microbiota-Part I biosurfactant characterization and oil displacement … LLGC de Araujo, LGP Sodré, LR Brasil, DF Domingos, VM de Oliveira, ... Journal of Petroleum Science and Engineering 180, 950-957 , 2019 2019 Citations: 49
Petroleum degradation by aerobic microbiota from the Pampo Sul oil field, Campos Basin, Brazil GF dA Cruz, EV dos Santos Neto, AJ Marsaioli Organic Geochemistry 39 (8), 1204-1209 , 2008 2008 Citations: 49
Organic geochemical signals of freshwater dynamics controlling salinity stratification in organic-rich shales in the Lower Permian Irati Formation (Paraná Basin, Brazil) LL Martins, HM Schulz, HJPS Ribeiro, CA do Nascimento, ES de Souza, ... Organic Geochemistry 140, 103958 , 2020 2020 Citations: 43
Processos naturais de biodegradação do petróleo em reservatórios GF Cruz, AJ Marsaioli Química Nova 35 (8), 1628-1634 , 2012 2012 Citations: 32
Weathering impacts on petroleum biomarker, aromatic, and polar compounds in the spilled oil at the northeast coast of Brazil over time BD Lima, LL Martins, VB Pereira, DMM Franco, IR Dos Santos, JM Santos, ... Marine Pollution Bulletin 189, 114744 , 2023 2023 Citations: 30
Searching for monooxygenases and hydrolases in bacteria from an extreme environment GF da Cruz, CFF Angolini, LG de Oliveira, PF Lopes, SP de Vasconcellos, ... Applied microbiology and biotechnology 87 (1), 319-329 , 2010 2010 Citations: 25
Study of barium sulfate dissolution by scale dissolver based on solutions of DTPA GAP Abib, GFDA Cruz, ASL VAZ Anais da Academia Brasileira de Ciências 90 (3), 3185-3196 , 2018 2018 Citations: 24
A new crude-glycerin-based drilling fluid GVC Malgaresi, ASL Vaz Jr, CC Corrêa, GF Cruz, RFT Lomba, ... Journal of Petroleum Science and Engineering 160, 401-411 , 2018 2018 Citations: 24
Monitoring chemical compositional changes of simulated spilled Brazilian oils under tropical climate conditions by multiple analytical techniques BD Lima, LL Martins, ES de Souza, MA Pudenzi, GF da Cruz Marine pollution bulletin 164, 111985 , 2021 2021 Citations: 18
New paleoenvironmental proxies for the Irati black shales (Paraná Basin, Brazil) based on acidic NSO compounds revealed by ultra-high resolution mass spectrometry LL Martins, HM Schulz, M Noah, S Pötz, HJPS Ribeiro, GF da Cruz Organic Geochemistry 151, 104152 , 2021 2021 Citations: 18
Taxonomic diversity and biodegradation potential of bacteria isolated from oil reservoirs of an offshore southern Brazilian basin PFL Oliveira, SP Vasconcellos, CFF Angolini, GF da Cruz, AJ Marsaioli, ... J. Pet. Environ. Biotechnol 3 (7) , 2012 2012 Citations: 16
Geochemical Investigation of Tar Balls Collected in a Brazilian Beach Using Biomarkers, Ni/V, δ 13 C Ratios and Ultra-High Resolution FT-ICR Mass Spectrometry BD Lima, LL Martins, LC Santos, ES Souza, MA Pudenzi, HL Nascimento, ... Journal of the Brazilian Chemical Society 31 (4), 673-682 , 2020 2020 Citations: 15
Avaliação do potencial uso de bioglicerina como base para formulação de fluidos de perfuração aquosos para poços de petróleo e gás CC Corrêa, GF Cruz, ASL Vaz Jr, BSA Araújo, AA Silva, RA Rodrigues, ... Química Nova 40 (4), 378-387 , 2017 2017 Citations: 14