Article
Environmental Sciences
Mao-Long Chen, Tian-Hui Lu, Shan-Shan Li, Li Wen, Zhou Xu, Yun-Hui Cheng
Summary: The study utilized MOFs to improve the light absorption and degradation performance of Bi2WO6 semiconductor, successfully synthesizing a Bi2WO6/NH2-MIL-88B(Fe) heterojunction photocatalyst with high-performance photocatalytic degradation activities. The high-efficiency 1:2 BNM exhibited optimal charge separation and carrier recombination rates, with cycle experiments confirming good reusability and stability of the composite photocatalyst.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jin-Ge Zhang, Dong-Dong Ma, Qian Xiong, Shu-Qing Qiu, Guo-Yong Huang, Wen-Jun Shi, Guang-Guo Ying
Summary: The study found that IMI and THM significantly impacted the locomotor behavior and transcription of genes related to synaptic transmission in zebrafish, indicating neurotoxicity of these insecticides.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Environmental Sciences
Samuel J. Macaulay, Kimberly J. Hageman, Jeremy J. Piggott, Christoph D. Matthaei
Summary: The research highlights the differential toxicity of neonicotinoid insecticides to freshwater insects, with imidacloprid showing higher toxicity. This implies a need for stricter regulation to control its use. Furthermore, the study suggests that neonicotinoid mixtures may deviate from additive toxicity and exhibit complex interactions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Stephanie M. Zamule, Cassandra E. Dupre, Meghan L. Mendola, Julia Widmer, Jane A. Shebert, Carol E. Roote, Padmini Das
Summary: The study characterized the bioremediation potential of six bacterial species on neonicotinoid insecticides, finding that maximal removal of the insecticide occurred at 30 degrees Celsius for all bacterial species assessed.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Chemistry, Multidisciplinary
Tao Wang, Xiqing Liu, Mei Liu, Runhua Liao, Hongquan Zhan, Xiaoxue Qi, Yongqing Wang, Yanju Huang
Summary: The integration of MIL-100(Fe) with TiO2(B) composite exhibited high photocatalytic activity due to the unique Fe-O-Ti bonds and Fe-O clusters that promoted charge transfer and improved catalytic activity. This achievement contributes to understanding and designing charge transfer pathways in MOF/semiconductor photocatalysts integration.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Hailiang Liu, Chaorui Wang, Yang Qin, Yan Huang, Changfa Xiao
Summary: A composite PVC separation membrane with magnetic nanoparticles was successfully prepared using the non-solvent induced phase separation method assisted by a magnetic field. The addition of magnetic nanoparticles and their migration under a magnetic field increased membrane performance in terms of porosity, hydrophilicity, pure water flux, and rejection ratio of BSA.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Environmental
Yuye Luo, Cheng Liu, Tariq Mehmood, Yingjie Zhang, Mengyao Yu, Yuanyuan Ren
Summary: The study elucidated the degradation performance of amino acids by peroxymonosulfate (PMS) activated by Co-Fe3O4 composite catalyst, showing that the Co-Fe3O4/PMS system had preferable removal efficiency for histidine and phenylalanine, and promoted the generation of active free radicals, indicating a feasible method for drinking water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Gaga Mahai, Yanjian Wan, Aizhen Wang, Wei Xia, Lisha Shi, Pei Wang, Zhenyu He, Shunqing Xu
Summary: A study found multiple metabolites of neonicotinoid insecticides (NNIs) in drinking water in mainland China and Hong Kong, with urea and desnitro/decyano metabolites being the main types. Metabolite levels were significantly higher in urban areas compared to nonurban areas, with higher metabolite levels in the south possibly due to lower soil pH, higher temperatures, and greater light intensities.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Jin-Ge Zhang, Wenjun Shi, Dong-Dong Ma, Zhi-Jie Lu, Si-Ying Li, Xiao-Bing Long, Guang-Guo Ying
Summary: Imidacloprid (IMI) and thiamethoxam (THM) exhibit negative effects on parental fish, but their intergenerational effects at environmentally relevant concentrations are still unclear. This study investigates the intergenerational effects by exposing F0 zebrafish to IMI and THM and examining the F1 generations. The results show that IMI and THM affect fecundity, gonadal development, sex hormones, and VTG levels in F0 zebrafish, and also influence sex hormones, heart rate, and spontaneous movement rate in F1 generation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Alamri Rahmah Dhahawi Ahmad, Saifullahi Shehu Imam, Wen Da Oh, Rohana Adnan
Summary: FeM composites composed of montmorillonite and Fe3O4 were synthesized and used for OFL antibiotic degradation. The efficiency of FeM composites was studied by adjusting various parameters, with FeM-10 showing a significant drop in efficiency after five cycles. Further studies are needed to address this weakness.
Article
Chemistry, Inorganic & Nuclear
Dan Li, Zepeng Zhao, Junliang Guo, Rujun Shen, Feigao Xu
Summary: Magnetic nano Fe3O4/CeO2/TiO2 composites were synthesized and their Fenton catalytic activity for the degradation of AO-7 dye under UV light was studied. The best activity was observed in the composite with a weight ratio of 1:1:1 (Fe1Ce1Ti1). The Fe1Ce1Ti1 composite showed good reusability and the .OH free radicals were mainly formed on its surface.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Zurong Zhu, Lu Zhang, Pinan Liu, Chengli Liu, Jialuo Ai, Youzhun Fan, Senwei Liu, Jinxia Zhai, Guanghui Bai, Chengyun Ning, Zhengao Wang
Summary: Excessive artificial electromagnetic radiation poses significant health risks and disrupts military equipment. Carbon materials, especially metal-organic frameworks (MOFs), offer promise due to low density, chemical stability, and high conductivity. In this study, we synthesized a novel multicore-shell Fe3O4@Fe@C composite with exceptional electromagnetic wave absorption, enabling multiple electromagnetic wave routes, strong interfacial polarization, and magnetic-dielectric synergy.
Article
Environmental Sciences
He Bai, Yuxiang Yang, Hongming Yuan, Xiangnong Liu, Chaoying Ni
Summary: This study successfully demonstrated the effective degradation of MXC in wastewater and soil using a catalyst, along with the identification of its metabolites and proposed degradation mechanism. The findings hold great significance for the environmental remediation of MXC and provide a new perspective for future environmental restoration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Zheng-Kun Bai, Qing-Mei Ge, Nan Jiang, Hang Cong, Yun-Qian Zhang, Mao Liu, Ying Fan
Summary: A ternary composite (CdS@PANI/Q[7]) consisting of CdS semiconductor, PANI, and Q[7] has been synthesized. This material exhibits high catalytic activity for the photocatalytic degradation of thiamethoxam under visible-light, achieving a removal efficiency of 85% with a kinetic constant of 0.003 min-1. The proposed catalytic mechanism involves the restrained recombination of photoinduced hole-electron pairs and enhanced contact between the photocatalyst and the thiamethoxam substrate.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Hui Kong, Hongyan Li, Hongxia Wang, Songnan Li, Bin Lu, Jingxiang Zhao, Qinghai Cai
Summary: A Fe-Mo-O doped g-C3N4 exfoliated composite was synthesized and characterized. The composite consisted of MoO3, FeMoyOx, and exfoliated g-C3N4 crystals, exhibiting high efficiency for advanced oxidation degradation of Rhodamine B, with a degradation rate of 99% within 15 minutes. It also showed high activity for photocatalytic degradation of Rhodamine B under visible light, achieving a degradation rate of > 99%. The excellent catalytic activity was attributed to the Fe/Mo dual ion synergy system and heterojunctions on exfoliated g-C(3)N(4) that inhibited electron-hole recombination. Additionally, the composite catalyst exhibited excellent recovery and reusability for advanced oxidation and photocatalytic degradation.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Barbara O. Santos, Mauricio Tanigaki, Mauro R. Silva, Ana Luiza C. C. Ramos, Renata A. Labanca, Rodinei Augusti, Julio O. F. Melo, Jacqueline A. Takahashi, Raquel L. B. de Araujo
Summary: This study investigated the potential use of pequi pericarp flour and found that it is rich in protein, ash, and dietary fiber, as well as various chemical compounds. In vitro digestion experiments demonstrated an increase in the antioxidant capacity of the flour. Therefore, pequi pericarp flour could be used as a food ingredient to reduce the risk of diseases caused by oxidative stress.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
Ana P. X. Mariano, Ana L. C. C. Ramos, Afonso H. de Oliveira Junior, Yesenia M. Garcia, Ana C. C. F. F. de Paula, Mauro R. Silva, Rodinei Augusti, Raquel L. B. de Araujo, Julio O. F. Melo
Summary: This study investigated the extraction and analysis of volatile organic compounds (VOCs) from Eugenia klotzschiana O. Berg fruit pulp, and identified the compounds responsible for its aroma. The most efficient fiber sorbent for headspace solid-phase microextraction (HS-SPME) was found to be PDMS/DVB. A total of 38 compounds, including sesquiterpenes and monoterpenes, were identified in the aroma.
Article
Biochemistry & Molecular Biology
Yuri G. Figueiredo, Eduardo A. Correa, Afonso H. de Oliveira Junior, Ana C. d. C. Mazzinghy, Henrique d. O. P. Mendonca, Yan J. G. Lobo, Yesenia M. Garcia, Marcelo A. d. S. Gouveia, Ana C. C. F. F. de Paula, Rodinei Augusti, Luisa D. C. B. Reina, Carlos H. da Silveira, Leonardo H. F. de Lima, Julio O. F. Melo
Summary: This study aimed to identify the volatile compounds present in aroeira seeds and investigate their anti-inflammatory potential through virtual docking analysis and pharmacophoric descriptor analysis. The results showed that the compounds present in aroeira seeds have the ability to bind to the active sites of COX-I, iNOSas, and iNOScs, indicating high biotechnological and pharmaceutical potential.
Article
Biochemical Research Methods
Ana Gabriella Carvalho Miguita, Rodinei Augusti, Clesia Cristina Nascentes, Marcelo Martins Sena
Summary: This study reports the use of paper spray mass spectrometry combined with chemometric models to analyze seized samples of anabolic steroids. The developed method demonstrated the ability to identify active ingredients and detect counterfeit products.
JOURNAL OF MASS SPECTROMETRY
(2022)
Article
Chemistry, Physical
Clesia C. Nascentes, Ivette Aguilar, Guzman Gil-Ramirez, Jose Gonzalez-Rodriguez
Summary: The electropolymerization of metallo-octaethylporphyrins was studied and characterized using UV-Vis and Raman spectroscopies. The CuOEP-modified electrode showed excellent performance for the analysis of phenobarbital in antiepileptic treatments.
Article
Chemistry, Analytical
Vania de Lourdes G. Teles, Pedro Henrique Vendramini, Rodinei Augusti, Leticia M. Costa
Summary: Basil samples were analyzed using desorption electrospray ionization mass spectrometry imaging (DESI-MSI) to identify amino acids and sugars. The study found that basil leaves accumulated various amino acids and sugars as a defense mechanism against cadmium contamination. The results demonstrated the potential of DESI-MSI as a valuable tool for metabolomics studies in plants exposed to toxic metals.
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Editorial Material
Chemistry, Analytical
Rodinei Augusti
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Vinicius Tadeu da Veiga Correia, Viviane Dias Medeiros Silva, Henrique de Oliveira Prata Mendonca, Ana Luiza Coeli Cruz Ramos, Mauro Ramalho Silva, Rodinei Augusti, Ana Cardoso Clemente Filha Ferreira de Paula, Ricardo Manuel de Seixas Boavida Ferreira, Julio Onesio Ferreira Melo, Camila Argenta Fante
Summary: This study determined the chemical profiles of jabuticaba and jambolan fruits using paper spray mass spectrometry and found that they are rich in phenolic compounds. The different parts of the fruits produced different chemical fingerprints when extracted using different solvents. These compounds in jabuticaba and jambolan have the potential to positively impact human health and nutrition.
Article
Biochemistry & Molecular Biology
Maria Clara Coutinho Macedo, Vinicius Tadeu da Veiga Correia, Viviane Dias Medeiros Silva, Debora Tamires Vitor Pereira, Rodinei Augusti, Julio Onesio Ferreira Melo, Christiano Vieira Pires, Ana Cardoso Clemente Filha Ferreira de Paula, Camila Argenta Fante
Summary: In this study, yellow passion fruit peel flour was developed and evaluated for its characteristics, including physicochemical, microscopic, colorimetric, and granulometric properties, as well as its content of phenolic compounds and carotenoids, and antioxidant capacity. The analysis revealed that the flour had a light color, heterogeneous granulometry, and high content of carbohydrates, carotenoids, and phenolic compounds with strong antioxidant capacity. The presence of various beneficial compounds was identified through analytical techniques. The findings highlight the potential of yellow passion fruit peel flour as a food ingredient, offering advantages such as waste reduction, contribution to sustainability, and enhancement of functional properties in food products. Its high content of bioactive compounds also provides health benefits to consumers.
Article
Biochemistry & Molecular Biology
Maria Clara Coutinho Macedo, Viviane Dias Medeiros Silva, Mateus Sa Magalhaes Serafim, Vinicius Tadeu da Veiga Correia, Debora Tamires Vitor Pereira, Patricia Regina Amante, Antonio Soares Junior da Silva, Henrique de Oliveira Prata Mendonca, Rodinei Augusti, Ana Cardoso Clemente Filha Ferreira de Paula, Julio Onesio Ferreira Melo, Christiano Vieira Pires, Camila Argenta Fante
Summary: This study investigated the effects of different ultrasonic extraction times on the phytochemical profile, antioxidant and antibacterial activities of ethanolic extracts from the leaves of Pereskia aculeata Miller. The results showed that the extraction times influenced the phenolic content and antioxidant activity of the extracts. All of the extracts inhibited the growth of Staphylococcus aureus, and chlorogenic acid was the primary compound detected. This study provides insights into the potential use of P. aculeata leaves and their extract in the food and pharmaceutical industries.
Article
Medicine, Legal
Cristiano O. L. Goulart, Clesia C. Nascentes, Leticia M. Costa
Summary: Recovering identifiable fingerprints from fired cartridge cases is challenging. Chemical modifications and their effects on fingerprint integrity after firing were investigated in this study. Primary fingerprint lipids were extracted from fired and unfired cartridge cases and quantified using gas chromatography coupled with mass spectrometry. Most lipids showed similar concentrations in fired and unfired cases, except for squalene which had a 28% lower recovery rate in fired cases.
JOURNAL OF FORENSIC SCIENCES
(2023)
Article
Biochemical Research Methods
Ana Gabriella Carvalho Miguita, Rodinei Augusti, Marcelo Martins Sena, Clesia Cristina Nascentes
Summary: This study analyzed 43 commercially acquired samples of St. John's wort using paper spray ionization mass spectrometry (PS-MS). It was found that 52.3% of the samples were adulterated with other plant species, including Ageratum conyzoides and Senna spectabilis. Only 13 out of 35 samples produced in Brazil were deemed authentic. Therefore, there is a clear need to improve the quality control of these drugs in Brazil.
JOURNAL OF MASS SPECTROMETRY
(2023)
Article
Biochemical Research Methods
Larissa Batista dos Santos, Diego Magalhaes Costa, Mariana Ramos Almeida, Rodinei Augusti
Summary: In this paper, the researchers used sandpaper as a tool to analyze polishable solid samples. They demonstrated the feasibility of this method by sanding the surface of coffee beans and obtaining fingerprints using mass spectrometry. The new technique, named sandpaper spray mass spectrometry (SPS-MS), has advantages over traditional paper spray mass spectrometry in analyzing polishable solid samples and offers a more straightforward approach for analyzing hard surfaces such as wood, plastic, and crop grains.
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
(2023)
Article
Environmental Sciences
Ricardo Mathias Orlando, Rodinei Augusti, Adriana Nori de Macedo, Mariana Ramos Almeida, Zenilda de Lourdes Cardeal, Helvecio C. Menezes, Claudia Carvalhinho Windmoeller, Cyntia Cabral Ribeiro, Millena Christie Ferreira Avelar, Marina Caneschi de Freitas, Lucas Pinto da Silva, Jose Messias Gomes, Julia Celia Lima Gomes, Julia Vasconcellos Augusti, Barbara Oliveira Lopes, Nathalia de Oliveira Melo, Luciene Paiva Moreira da Silva, Denise Versiane Monteiro de Sousa
Summary: This manuscript presents a novel and simple strategy for optimizing the determination of contaminants in groundwater. The strategy utilizes online solid-phase extraction (SPE) coupled with ultrahigh-performance liquid chromatography (UHPLC) and tandem mass spectrometry (MS/MS). Various factors were considered during the methodology optimization process, including analyte sorption, cleanup conditions, injection volume, and matrix effects. Matrix effects were mitigated by adding additives (citric acid and hydroxylamine) directly into the groundwater samples. The optimized conditions yielded excellent results for evaluating ten contaminants, even without internal standards, highlighting the importance of investigating experimental issues in analytical protocols. This work provides valuable insights for researchers working on LC-MS/MS methods for determining organic contaminants in groundwater.
