Bisphenol A (BPA), an endocrine disruptor used in different commercial polymers, is a persistent pollutant commonly found in effluents. Conventional wastewater treatment processes have low chemical removal efficiency and are expensive. This work evaluated BPA removal using laccase enzyme produced from white rot fungus Pleurotus ostreatus. For the enzymatic production, residues of acai berry and pineapple were used as laccase inducers. The use of natural inducers led to a high enzyme production (1139 and 1031 U mL−1 to acai and pineapple, respectively). Bisphenol A was removed to a concentration lower than LOD (limit of detection) after 4 h. The degradation mechanism of BPA occurred by oxidation of methyl to hydroxymethyl group in a propane portion, with breakdown of the aromatic ring. The developed technology brought to the scene a new green, viable methodology, using vegetable waste, adding value to these residues and bringing an alternative to the BPA treatment. BPA, , (BPA) polymers effluents expensive ostreatus 1139 (113 103 mL1 mL 1 mL− respectively. respectively . respectively) limit detection h portion ring green methodology waste (BPA 113 (11 10 11 (1 (

We report a facile hydrothermal method for the synthesis of niobium pentoxide (Nb2O5) under two different temperatures, 120 °C (Nb2O5-120) and 150 °C (Nb2O5-150). The obtained materials were characterized by structural, optical and morphological techniques. Also, the photocatalytic properties of the Nb2O5 samples were evaluated in two reactions under ultraviolet (UVC) irradiation: degradation of methylene blue (MB) and indigo carmine (IC) dyes; and esterification of free fatty acids (FFA) present in waste cooking oil (WCO). The Nb2O5 was formed at different temperatures of synthesis, and the increase in temperature did not cause significant changes in the structural and optical characteristics, but resulted in an increased surface area of the synthesized materials. Both synthesized materials showed excellent efficiency for dye photodegradation. The sample Nb2O5-150 presented the best performance for the MB photodegradation, with almost 85% of the removal efficiency. In this case, the adsorption of MB molecules on the surface of the material was high due to the favorable electrostatic interaction and also because of its high surface area. For the IC photodegradation, the adsorption was insignificant, and both samples presented approximately 100% of the removal efficiency. These materials were also promising for the reduction of free fat acids in waste oil by photoesterification. NbO Nb O (Nb2O5 12 C Nb2O5120 (Nb2O5-120 15 Nb2O5150. Nb2O5150 . (Nb2O5-150) techniques Also Nb2O UVC (UVC irradiation (MB (IC dyes FFA (FFA WCO. WCO (WCO) characteristics photodegradation Nb2O5-15 85 case insignificant 100 photoesterification (Nb2O 1 Nb2O512 (Nb2O5-12 Nb2O515 (Nb2O5-150 (WCO Nb2O5-1 8 10 Nb2O51 (Nb2O5-1 (Nb2O5-15 Nb2O5- (Nb2O5-

The rapid advance of nanotechnology has led to the proliferation of a wide range of water-soluble nanomaterials and therefore, a profound impact on the environment, underscoring the need to devise effective methods for isolating and confining these nanomaterials. This study presents the development of a highly effective system capable of removing and storing gold nanoparticles in solution using modified resins with different linking groups, such as tris(2-aminoethyl) amine, 3-mercaptopropionic acid, 11-mercaptoundecanoic acid, and L-cysteine. The catalytic properties of the resins functionalized with the thiol group containing gold nanoparticles were evaluated, using the reduction of the nitro compounds (3,5-dinitrosalicylic acid, 4-nitroguaiacol and 4-nitroaniline) as model reaction. Solid-phase organic synthesis was employed to prepare the modified resins and their interaction with gold nanoparticles was characterized using infrared spectroscopy, thermogravimetric analysis, field emission scanning electron microscopy-energy dispersive spectroscopy, and X-ray photoelectron spectroscopy. The removal capacity of the resins was evaluated using ultraviolet-visible optical emission spectroscopy and inductively coupled plasma techniques. Ultraviolet-visible technique was suitable to assess the catalytic properties of the functionalized resins containing gold nanoparticles. It was determined that the functionalized resins showed remarkable capacity for complex gold nanoparticles, removing them from the solution. The most significant removal was with 11-mercaptoundecanoic acid. watersoluble water soluble therefore environment groups tris2aminoethyl trisaminoethyl tris 2 aminoethyl tris(2-aminoethyl amine 3mercaptopropionic mercaptopropionic 3 acid 11mercaptoundecanoic mercaptoundecanoic 11 Lcysteine. Lcysteine L cysteine. cysteine L-cysteine 3,5dinitrosalicylic 35dinitrosalicylic dinitrosalicylic 3,5 5 4nitroguaiacol nitroguaiacol 4 4nitroaniline nitroaniline 4-nitroaniline reaction Solidphase Solid phase analysis microscopyenergy microscopy energy Xray X ray ultravioletvisible ultraviolet visible techniques Ultravioletvisible Ultraviolet 1 5dinitrosalicylic 35 3,

ABSTRACT Purpose: To evaluate the predictive value of initial intraocular pressure difference of the detached and fellow eyes of patients with complex rhegmatogenous retinal detachment on postoperative persistent ocular hypotony. Methods: This retrospective observational study included 538 eyes of 538 unilateral complex rhegmatogenous retinal detachment patients with a proliferative vitreoretinopathy grade of C-1 or higher, treated with silicone oil endotamponade following pars plana vitrectomy. The patients were divided into Group A (patients having silicone oil removal without ocular hypotony; n=504) and Group B (patients with persistent ocular hypotony following silicone oil removal [n=8, 23.5%] and with retained silicone oil [n=26, 76.5%] due to the risk of persistent ocular hypotony; total n=34). Ocular hypotony was defined as an intraocular pressure of <6 mmHg on two or more occasions. Patients’ demographics, including age, sex, and follow-up time, and ocular characteristics, including ocular surgical and trauma history, initial and final best-corrected visual acuity, intraocular pressure and initial intraocular pressure difference of the detached and fellow eyes, and anatomical success rates and postoperative complications, were retrospectively collected from the electronic patient files. Results: The initial intraocular pressure was significantly lower in the detached eyes of Group B than in Group A (8.3 ± 3.5 vs. 12.9 ± 3.3, p<0.001). Also, the initial intraocular pressure difference was significantly higher in Group B than in Group A (8.9 ± 3.2 vs. 2.2 ± 2.7mmHg, p<0.001). The receiver operating characteristic curve analysis showed that the cutoff value of the initial intraocular pressure difference was 7.5mmHg for the risk of persistent ocular hypotony. The most influential factors on postoperative persistent ocular hypotony in the binary logistic regression analysis were the initial intraocular pressure difference and the need for a retinectomy. Conclusion: In eyes with complex rhegmatogenous retinal detachment treated with pars plana vitrectomy and silicone oil tamponade, the initial intraocular pressure difference could be of value in predicting postoperative persistent ocular hypotony and could guide surgeons on the decision of silicone oil removal. Purpose Methods 53 C1 C 1 C- n=504 n504 n 504 n=8, n8 8 [n=8 23.5% 235 23 5 n=26, n26 26 [n=26 76.5% 765 76 n=34. n34 n=34 . 34 n=34) 6 < occasions Patients demographics age sex followup follow up time characteristics history bestcorrected best corrected acuity complications files Results 8.3 83 3 (8. 35 3. vs 129 12 9 12. 33 3.3 p<0.001. p0001 p p<0.001 0 001 p<0.001) Also 8.9 89 32 2 22 2. 27mmHg 7mmHg 2.7mmHg 75mmHg 7 5mmHg retinectomy Conclusion tamponade n=50 n50 50 n=8 [n= 23.5 n=26 n2 [n=2 76.5 n3 n=3 8. (8 p000 p<0.00 00 n=5 n5 n= [n 23. n=2 76. ( p00 p<0.0 p0 p<0. p<0 p<

RESUMO Objetivo: Verificar a utilização e identificar as vantagens dos métodos moleculares para diagnóstico de infecções congênitas no líquido cefalorraquidiano de neonatos. Fontes de dados: A revisão foi registrada na base PROSPERO (International Prospective Register of Systematic Reviews) sob CRD42021274210. A busca bibliográfica foi realizada nas bases de dados PubMed, Biblioteca Virtual em Saúde/ Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde (BVS/BIREME), Scopus, Web of Science, Excerpta Medica database (EMBASE), Cochrane, ProQuest, e EBSCOhost. A busca foi feita no período de agosto a outubro de 2021 e atualizada em dezembro de 2022, respeitando as orientações do Preferred Reporting Items for Systematic Reviews e Meta-Analyises (PRISMA). A sequência da seleção dos estudos foi: 1) Remoção de duplicatas; 2) Exame de títulos e resumos; 3) Recuperação dos textos completos potencialmente relevantes; e 4) Avaliação do texto completo conforme critérios de elegibilidade por dois autores independentes. O critério de inclusão considerou ensaios clínicos randomizados e não randomizados, estudos longitudinais, transversais, revisados por pares, estudos em humanos, publicados em inglês, espanhol, italiano e português, com recém-nascidos de até 28 dias que sofreram neuroinfecções congênitas pelos agentes toxoplasmose, rubéola, citomegalovírus, herpes simples (TORCH), e outros como Treponema pallidum, Zika, parvovírus B-19, varicela zoster, Epstein-Barr, e SARS-CoV-2, diagnosticadas por reação em cadeia de polimerase (PCR). Dois avaliadores extraíram as seguintes informações: autor, ano de publicação, nacionalidade, sujeitos, tipo de estudo, métodos, resultados e conclusão. Síntese dos dados: O patógeno mais estudado foi Herpes Simples. Muitos artigos relataram somente sintomas iniciais inespecíficos, motivando a coleta de líquido cefalorraquidiano e realização da PCR para investigação etiológica. Conclusões: Os métodos moleculares são eficazes para detectar o genoma do patógeno no líquido cefalorraquidiano, o que pode impactar na evolução clínica e no prognóstico neurológico. Objetivo neonatos International CRD42021274210 CRD PubMed LatinoAmericano Latino Americano BVS/BIREME, BVSBIREME BVS/BIREME , BVS BIREME (BVS/BIREME) Scopus Science EMBASE, EMBASE (EMBASE) Cochrane ProQuest EBSCOhost 202 2022 MetaAnalyises Meta Analyises PRISMA. PRISMA . (PRISMA) 1 duplicatas 2 resumos 3 relevantes 4 independentes longitudinais transversais pares humanos inglês espanhol português recémnascidos recém nascidos toxoplasmose rubéola citomegalovírus TORCH, TORCH (TORCH) pallidum Zika B19, B19 B 19, 19 B-19 zoster EpsteinBarr, EpsteinBarr Epstein Barr, Barr Epstein-Barr SARSCoV2, SARSCoV2 SARSCoV SARS CoV 2, SARS-CoV-2 PCR. (PCR) informações autor publicação nacionalidade sujeitos estudo conclusão Simples inespecíficos etiológica Conclusões neurológico CRD4202127421 (BVS/BIREME (EMBASE 20 (PRISMA (TORCH B1 B-1 SARS-CoV- (PCR CRD420212742 B- SARS-CoV CRD42021274 CRD4202127 CRD420212 CRD42021 CRD4202 CRD420 CRD42 CRD4

ABSTRACT Objective: To verify the use and identify advantages of molecular methods for congenital infections diagnosis in cerebrospinal fluid of neonates. Data source: The review was registered in the International Prospective Register of Systematic Reviews (PROSPERO), under CRD42021274210. The literature search was performed in databases: PubMed, Virtual Health Library/ Latin American and Caribbean Center on Health Sciences Information (VHL/BIREME), Scopus, Web of Science, Excerpta Medica database (EMBASE), Cochrane, ProQuest, and EBSCOhost. The search was carried out from August to October 2021 and updated in December 2022, respecting the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The selection sequence was: 1) Duplicate title removal; 2) Examination of titles and abstracts; 3) Full-text retrieval of potentially relevant reports; and 4) Evaluation of the full text according to eligibility criteria by two independent authors. Inclusion criteria considered randomized and non-randomized control trials, longitudinal, cross-sectional, and peer-reviewed studies in humans, published in English, Spanish, Italian, and Portuguese, with newborns up to 28 days old who had congenital neuroinfections by toxoplasmosis, rubella, cytomegalovirus, herpes simplex (TORCH), and others such as Treponema pallidum, Zika, parvovirus B-19, varicella zoster, Epstein-Barr, and SARS-CoV2, diagnosed by polymerase chain reaction (PCR). Two evaluators extracted the following information: author, year of publication, nationality, subjects, study type, methods, results, and conclusion. Data synthesis: The most studied pathogen was herpes simplex. Several articles reported only nonspecific initial symptoms, motivating the collection of cerebrospinal fluid and performing PCR for etiological investigation. Conclusions: Molecular methods are effective to detect pathogen genomes in cerebrospinal fluid, which can impact clinical evolution and neurological prognosis. Objective neonates source PROSPERO, PROSPERO , (PROSPERO) CRD42021274210 CRD databases PubMed Library VHL/BIREME, VHLBIREME VHL/BIREME VHL BIREME (VHL/BIREME) Scopus Science EMBASE, EMBASE (EMBASE) Cochrane ProQuest EBSCOhost 202 2022 MetaAnalyses Meta Analyses PRISMA (PRISMA guidelines 1 removal 2 abstracts 3 Fulltext Full reports 4 authors nonrandomized non trials longitudinal crosssectional, crosssectional cross sectional, sectional cross-sectional peerreviewed peer reviewed humans English Spanish Italian Portuguese toxoplasmosis rubella cytomegalovirus TORCH, TORCH (TORCH) pallidum Zika B19, B19 B 19, 19 B-19 zoster EpsteinBarr, EpsteinBarr Epstein Barr, Barr Epstein-Barr SARSCoV2, SARSCoV2 SARSCoV SARS CoV2, CoV2 CoV SARS-CoV2 PCR. . (PCR) information author publication nationality subjects type results conclusion synthesis symptoms investigation Conclusions prognosis (PROSPERO CRD4202127421 (VHL/BIREME (EMBASE 20 (TORCH B1 B-1 SARS-CoV (PCR CRD420212742 B- CRD42021274 CRD4202127 CRD420212 CRD42021 CRD4202 CRD420 CRD42 CRD4

Methods used to determine pesticide residues in teas typically require several laborious steps for sample preparation before analysis. In this study, a simple method based on solid-liquid extraction with low-temperature partitioning (SLE/LTP) and analysis by gas chromatography coupled to mass spectrometry (GC-MS) was optimized and validated for the determination of pesticide residues (pirimiphos-methyl, flutriafol, cyproconazole, and bifenthrin) in dehydrated green tea leaves. After low-temperature partitioning (LTP), the extract in acetonitrile was subjected to a clean-up step using primary secondary amine (PSA) and octadecylsilane (C18) as sorbents for chlorophyll removal. The optimized SLE/LTP-GC-MS method was validated, and it proved to be effective and selective for extracting pesticides from green tea samples, presenting limit of detection (LOD) and limit of quantification (LOQ) of 0.015 and 0.050 mg kg-1, respectively. Recovery ranged between 81-111%, coefficients of variation were less than 16% and coefficients of determination (R2) were greater than 0.990. The optimized and validated method was applied to green tea and 13 other tea varieties sampled in South and Southeast regions of Brazil. The pesticides under study were detected in some of those samples at values higher than the maximum residue limits (MRLs) allowed by the European Union. solidliquid solid liquid lowtemperature low temperature SLE/LTP SLELTP SLE LTP (SLE/LTP GCMS GC MS (GC-MS pirimiphosmethyl, pirimiphosmethyl pirimiphos methyl, methyl (pirimiphos-methyl flutriafol cyproconazole bifenthrin leaves LTP, , (LTP) cleanup clean up PSA (PSA C18 C (C18 removal SLE/LTPGCMS SLELTPGCMS LOD (LOD LOQ (LOQ 0015 0 015 0.01 0050 050 0.05 kg1, kg1 kg 1, 1 kg-1 respectively 81111%, 81111 81 111%, 111 81-111% 16 R2 R (R2 0990 990 0.990 Brazil MRLs (MRLs Union (LTP C1 (C1 LTPGCMS 001 01 0.0 005 05 kg- 81111% 8111 8 111% 11 81-111 (R 099 99 0.99 (C 00 0. 811 81-11 09 9 0.9 81-1 81-

RESUMO A estruvita (NH4MgPO4∙6H2O) é um fertilizante de liberação lenta obtido através da recuperação de fósforo e/ou nitrogênio de águas residuais geralmente pela adição de sais de magnésio. Neste sentido, objetivou-se avaliar a viabilidade da substituição de fontes comerciais de magnésio por fontes alternativas no processo de precipitação de estruvita, em termos de remoção de amônio e fosfato, e quantificação e caracterização do cristal precipitado. Os experimentos foram conduzidos em escala de bancada sob delineamento inteiramente casualizado a pH 9,5 através da precipitação de uma solução de efluente sintético com quatro diferentes fontes de magnésio: MgCl2∙6H2O, MgSO4∙7H2O, MgO e magnesita (MgCO3). Após pré-acidificação, soluções derivadas de fontes alternativas de baixo custo de magnésio removeram acima de 55 e 90% de nitrogênio amoniacal e fosfato em solução, respectivamente, e alcançaram por volta de 10 g L-1 de cristais precipitados. A proximidade dos resultados obtidos com soluções derivadas de fontes comerciais de magnésio (46ꟷ56% de remoção de nitrogênio amoniacal, 97% de remoção de fosfato, e mais de 6 g L-1 de precipitado formado) indicou que reagentes alternativos puderam facilmente substituir os comerciais se submetidos ao prévio processo de digestão, a fim de tornar o magnésio disponível em solução. A análise qualitativa por difratometria de raios-X confirmou a presença de estruvita e newberyita na maioria dos precipitados. NH4MgPO4∙6H2O NH4MgPO46H2O NHMgPOHO NH4MgPO4 6H2O NH MgPO H O (NH4MgPO4∙6H2O eou ou sentido objetivouse objetivou 95 9 5 9, MgCl26H2O MgClHO MgCl2 MgCl MgCl2∙6H2O MgSO47H2O MgSOHO MgSO4 7H2O MgSO MgSO4∙7H2O MgCO3. MgCO3 MgCO . (MgCO3) préacidificação, préacidificação pré acidificação, acidificação pré-acidificação 90 respectivamente 1 L1 L L- precipitados 46ꟷ56% 46ꟷ56 ꟷ (46ꟷ56 97 formado digestão raiosX raios X NHMgPO NH4MgPO HO (MgCO3 46ꟷ5 (46ꟷ5 (MgCO 46ꟷ (46ꟷ

ABSTRACT Struvite (NH4MgPO4∙6H2O) is a slow-release fertilizer obtained through phosphorus and/or nitrogen recovery from wastewaters, usually by adding magnesium salts. In this sense, the aim was to evaluate the viability of replacing commercial magnesium sources with alternative ones in the struvite precipitation process regarding ammonium and phosphate removal and precipitated crystal quantification and characterization. Experiments were conducted on a bench scale in a completely randomized design at pH 9.5 by precipitation of synthetic wastewater solution with four magnesium sources: MgCl2∙6H2O, MgSO4∙7H2O, MgO, and magnesite (MgCO3). After pre-acidification, derived solutions from low-cost alternative sources of magnesium removed above 55 and 90% of ammonium nitrogen and phosphate in solution, respectively, and reached around 10 g L-1 of precipitated crystals. Results proximity obtained with solutions derived from commercial sources of magnesium (46ꟷ56% of ammonium nitrogen removal, 97% of phosphate removal, and more than 6 g L-1 of precipitate formed) indicated that alternative reagents could easily substitute commercial ones if submitted to the previous digestion process, making magnesium available in solution. Qualitative analysis by X-ray diffraction confirmed the presence of both struvite and newberyite in most precipitates. NH4MgPO4∙6H2O NH4MgPO46H2O NHMgPOHO NH4MgPO4 6H2O NH MgPO H O (NH4MgPO4∙6H2O slowrelease slow release andor or wastewaters salts sense characterization 95 9 5 9. MgCl26H2O MgClHO MgCl2 MgCl MgCl2∙6H2O MgSO47H2O MgSOHO MgSO4 7H2O MgSO MgSO4∙7H2O MgO MgCO3. MgCO3 MgCO . (MgCO3) preacidification, preacidification pre acidification, acidification pre-acidification lowcost low cost 90 respectively 1 L1 L L- crystals 46ꟷ56% 46ꟷ56 ꟷ (46ꟷ56 97 formed Xray X ray precipitates NHMgPO NH4MgPO HO (MgCO3 46ꟷ5 (46ꟷ5 (MgCO 46ꟷ (46ꟷ

ABSTRACT: This study evaluated the effect of removing apical dominance at phenological stages on the agronomic traits of soybean cultivars. The experiment was conducted in the 2020/2021 growing season inthe teaching-experimental area of the Federal Institute of Education, Science and Technology of Rio Grande do Sul, Campus Ibirubá, under a randomized block design in a split-plot arrangement, with three replications. The main plots were composed of five soybean cultivars (DM53i54 IPRO, Zeus IPRO, Lanza IPRO, DM5958 IPRO, and Delta IPRO), and the subplots consisted of the phenological stages of apical dominance removal (control, V2, V4, and V6). Morphological traits were evaluated at different stages. Differences were observed between cultivars, which followed their pre-defined morphologies. Apical dominance removal reduced aspects such as the number of nodes and legumes on the main stem and the first legumeinsertion height. Cultivars developed branching mechanismsas a compensation strategy, increasing the number of legumes on the branches by up to 130%. The removal of the shoot apex can modify morphological aspects in soybean plants,but their yield tends to be maintained. ABSTRACT 20202021 2020 2021 2020/202 teachingexperimental teaching experimental Education Sul Ibirubá splitplot split plot arrangement replications DM53i54 DMi DM i (DM53i5 IPRO DM595 , IPRO) control, control (control V2 V V4 V6. V6 . V6) predefined pre defined morphologies height strategy 130 130% plantsbut plants but maintained 2020202 202 2020/20 DM53i5 (DM53i DM59 13 202020 20 2020/2 DM53i DM5 1 20202 2 2020/

RESUMO: O presente artigo objetiva avaliar o efeito da remoção da dominância apical em estádios fenológicos, nos caracteres agronômicos de cultivares de soja. O experimento foi implantado na área didática-experimental do Instituto Federal de Educação e Tecnologia do Rio Grande do Sul, Campus Ibirubá, na safra 2020/2021, sob delineamento de blocos ao acaso, em arranjo de parcelas subdivididas, com três repetições. As parcelas principais eram compostas pelos cinco cultivares (DM53i54 IPRO, Zeus IPRO, Lança IPRO, DM5958 IPRO e Delta IPRO) e as subparcelas, pelos estádios fenológicos de remoção de dominância apical (testemunha, V2, V4 e V6). As características morfológicas foram avaliadas em diferentes estádios. Como resultados, verificaram-se diferenças entre os cultivares, que seguiram suas morfologias pré-definidas. A remoção de dominância apical, reduziu aspectos como o número de nós e legumes na haste principal, além da altura de inserção do primeiro legume. Como estratégia de compensação, os cultivares desenvolvem mecanismos de ramificação, acrescendo até 130% no número de legumes nos ramos. Verifica-se que a remoção do ápice caulinar é capaz de modificar aspectos morfológicos em plantas de soja, contudo, seu rendimento tende a ser mantido. RESUMO soja didáticaexperimental didática experimental Sul Ibirubá 20202021 2020 2021 2020/2021 acaso subdivididas repetições DM53i54 DMi DM i (DM53i5 DM595 subparcelas testemunha, testemunha (testemunha V2 V V6. V6 . V6) resultados verificaramse verificaram se prédefinidas. prédefinidas pré definidas. definidas pré-definidas principal legume compensação ramificação 130 ramos Verificase Verifica contudo mantido 2020202 202 2020/202 DM53i5 (DM53i DM59 13 202020 20 2020/20 DM53i DM5 1 20202 2 2020/2 2020/

Palygoskite pellets were synthesized with lignin and WAX® and subjected to technological characterization for application in the remediation of Pb ions contained in aqueous effluents. X-ray diffraction (XRD) characterization of the palygorskite:lignin:WAX® material in a proportion of 70:15:15 revealed that the heat treatment of the pellets did not compromise the crystalline structure of the palygoskite. Texture analyses demonstrated that the surface area increased after synthesis and heat treatment, thus increasing the adsorption capacity. Regarding porosity, X-ray microtomography revealed that the pellets exhibit an irregular and porous spherical morphology with interconnected pores. Adsorption tests showed a removal of 73% of PbII contained in aqueous effluents after 15 min, with equilibrium reached in 60 min (88.36%). After the adsorption process, the presence of lead in the material was qualitatively confirmed through scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDS) images. The produced pellets exhibit promising adsorbent qualities, such as strength and effective PbII ion adsorption. WAX Xray X ray XRD (XRD palygorskiteligninWAX® palygorskiteligninWAX palygorskite palygorskite:lignin:WAX 701515 70 70:15:1 palygoskite capacity porosity pores 73 1 6 88.36%. 8836 88.36% . 88 36 (88.36%) process energydispersive energy dispersive SEMEDS SEM EDS (SEM-EDS images qualities 70151 7 70:15: 883 88.36 8 3 (88.36% 7015 70:15 88.3 (88.36 701 70:1 88. (88.3 70: (88. (88 (8 (

The aim of this study was to effectively remove Fe2+ by using ozone microbubbles in bottled mineral water to prevent sediment from occurring during storage and increase shelf life. By considering the characteristics of mineral water with low solubility of ozone and high CO2 content, a suitable ozone injection step was chosen and a new mineral water treatment method using microbubbles was proposed. As a result of the treatment of the bottled mineral water with ozone microbubbles, the concentration of the iron ion was reduced from 0.14 to 0.01 mg L-1, and the shelf life increased to 360 days. During the treatment, the concentrations of K+ and Na+ were almost unchanged, and the deposition time was reduced to one-third compared to the natural oxidation. Fe2 Fe CO content proposed 014 0 14 0.1 001 01 0.0 L1, L1 L 1, 1 L-1 36 days K Na unchanged onethird one third oxidation 0. 00 L- 3

Two poly(acrylic acid-b-acrylamide) copolymers, and a poly(acrylic acid) homopolymer were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization and tested for nickel removal from aqueous media. RAFT was used for better interchain composition homogeneity and to facilitate the synthesis of the block copolymers. Liquid-phase polymer-based retention (LPR) was used to compare the nickel binding capacity. Uptake tests were carried out at pH 3.0, 4.0, and 5.0. Nickel adsorption isotherms in the range of 1 to 7 mmol L−1 were achieved and the Langmuir adsorption model was applied. Maximum binding capacity (Qm) of Ni2+ at 298 K depended on the composition of the copolymers and pH. The polyacid block (PAA) was the major structural feature responsible for high values of nickel binding. All materials presented better uptake at higher pH, probably due to polyacid deprotonation and the increase in the electrostatic interactions. Up to approximately 100 mg of nickel per gram of homopolymer could be retained at pH = 5.0. Even though the presence of a poly(acrylamide) block decreases the binding capacity compared to PAA, that block has a specific contribution to nickel binding and can also provide better features to the material as better solubilization, and others. polyacrylic poly acrylic acidbacrylamide acid b acrylamide acid-b-acrylamide additionfragmentation addition fragmentation (RAFT media Liquidphase Liquid phase polymerbased polymer based LPR (LPR 30 3 0 3.0 40 4 4.0 50 5 5.0 L1 L L− applied Qm (Qm Ni2 Ni 29 PAA (PAA interactions 10 polyacrylamide poly(acrylamide solubilization others 3. 4. 5. 2

This study presents a solution to solid waste problems, focusing on spent lithium-ion batteries (LiBs) and iron ore tailings (IOT) from the Mariana environmental accident in Brazil. The approach involves the production CoFe2O4 from LiBs and IOT, which serves as a catalyst for solar photo-Fenton reactions for methylene blue (MB) decolorization and as an electrochemical sensor for ascorbic acid (AA) detection. Chemical analysis showed recycling potential, with 45.22 ± 0.22% m m−1 Co from LiBs and 14.9 ± 1.5% m m−1 Fe from IOT, determined by inductively coupled plasma atomic emission spectroscopy (ICP OES) and flame atomic absorption spectrometry (FAAS). The sol-gel synthesized CoFe2O4 exhibited a crystallite size of 51.9 ± 1.3 nm and agglomerated crystal clusters. Recycled-CoFe2O4 exhibited a 98.1% MB decolorization efficiency in 60 min under solar irradiation and remained above 92.3% in all 7 reuse cycles. The electrochemical sensor exhibited a coefficient of determination of 0.9987, a sensitivity of 3.352 ± 0.0428 μA mol L−1, and a limit of detection of 0.5511 µM in the concentration range of 1.96 to 23.08 mmol L−1 for AA detection. This study demonstrates the potential of recycled-CoFe2O4 in an environmentally friendly dye removal and as an electrochemical sensor, offering sustainable waste management and resource utilization with solar energy. problems lithiumion lithium ion (LiBs IOT (IOT Brazil CoFeO CoFe O CoFe2O photoFenton photo Fenton (MB (AA 4522 45 22 45.2 022 0 0.22 m1 1 m− 149 14 9 14. 15 5 1.5 ICP OES FAAS. FAAS . (FAAS) solgel sol gel 519 51 51. 13 3 1. clusters RecycledCoFe2O4 RecycledCoFeO Recycled Recycled-CoFe2O 981 98 98.1 6 923 92 92.3 cycles 09987 9987 0.9987 3352 352 3.35 00428 0428 0.042 L1 L 05511 5511 0.551 196 96 1.9 2308 23 08 23.0 L− recycledCoFe2O4 recycledCoFeO recycled recycled-CoFe2O energy 452 4 2 45. 02 0.2 (FAAS RecycledCoFe RecycledCoFe2O 98. 92. 0998 998 0.998 335 35 3.3 0042 042 0.04 0551 551 0.55 19 230 23. recycledCoFe recycledCoFe2O 0. 099 99 0.99 33 3. 004 04 0.0 055 55 0.5 09 0.9 00 05

ABSTRACT Purpose: This study aimed to analyze variations in intraoperative corneal thickness during corneal cross-linking in patients with keratoconus and to investigate its possible correlation with presurgical maximal keratometry (Kmax) and pachymetry. Methods: This was a prospective case series. We used a method similar to the Dresden protocol, with the application of hydroxypropyl methylcellulose 0.1% hypo-osmolar riboflavin in corneas between 330 and 400 µm after epithelium removal. Corneal thickness was measured using portable calipers before and immediately after epithelium removal, and 30 and 60 min after the procedure. Results: The 30 patients in this study were followed up for one year. A statistically significant difference was observed in pachymetry values during the intraoperative period (p<0.0001) and an increase of 3.05 µm (95%C1: 0.56-5.54) for each diopter was seen after epithelium removal (p0.019). We found an average Kmax difference of —2.12 D between men and women (p0.013). One year after treatment, there was a statistically significant reduction in pachymetry (p<0.0001) and Kmax (p0.0170) values. Conclusions: A significant increase in pachymetry measurements was seen during the procedure, and most patients showed a regression in Kmax and pachymetry values one year after surgery. Purpose crosslinking cross linking (Kmax Methods series protocol 01 0 1 0.1 hypoosmolar hypo osmolar 33 40 3 6 procedure Results p<0.0001 p00001 p 0001 (p<0.0001 305 05 3.0 95%C1 95C1 C 95 C1 (95%C1 0.565.54 056554 0.56 5.54 56 5 54 0.56-5.54 p0.019. p0019 p0.019 . p0 019 (p0.019) 2.12 212 2 12 —2.1 p0.013. p0013 p0.013 013 (p0.013) treatment p0.0170 p00170 0170 (p0.0170 Conclusions surgery 0. 4 p<0.000 p0000 000 (p<0.000 3. 95%C 95C 9 (95%C 565 0.565.5 05655 056 0.5 554 5.5 0.56-5.5 p001 p0.01 (p0.019 2.1 21 —2. (p0.013 p0.017 p0017 017 (p0.017 p<0.00 p000 00 (p<0.00 0.565. 0565 55 5. 0.56-5. p00 p0.0 (p0.01 2. —2 p<0.0 (p<0.0 0.565 0.56-5 p0. (p0.0 — p<0. (p<0. 0.56- (p0. p<0 (p<0 (p0 p< (p< (p

Phosphate species can affect aquatic ecosystems, as excess of this nutrient can cause eutrophication, generating environmental impacts. Lamellar double hydroxides have shown promise in removing phosphate at low concentrations (10-50 mg L 1). In this context, lamellar double hydroxides were synthesized interspersed with nitrates and humic substances, searching for a new product that favors phosphorus adsorption. X-ray diffraction showed the presence of characteristic peaks of lamellar double hydroxides and thermogravimetric analysis showed the decomposition behavior of lamellar structure. The adsorption capacity occurred quickly (< 30 min), being more efficient for lamellar double hydroxides with NO3. The maximum adsorption capacity showed results of 35.03 and 44.20 mg g 1 for lamellar double hydroxides with humic substances and lamellar double hydroxides with NO3, respectively. The complexation capacity showed that pH directly influences complexation, being greater for lamellar double hydroxides with humic substances at pH 6.5. Thus, nanostructured materials with humic substances are promising for use in contaminant remediation and adsorption can be a fast and efficient technique for use in soil and water. ecosystems eutrophication impacts 1050 10 50 (10-5 1. . 1) context Xray X ray structure < ( 3 min, min , min) NO3 NO 3503 35 03 35.0 4420 44 20 44.2 respectively 65 6 5 6.5 Thus water 105 (10- 350 0 35. 442 4 2 44. 6. (10 (1

Electrooxidation is an efficient method for treating effluents with high concentrations of ammoniacal nitrogen and organic matter (R), in the presence of chloride ions (Cl-). The present study aimed at degrading ammoniacal nitrogen and organic matter from an effluent generated at a fertilizer storage port terminal. For this purpose, a batch electrochemical reactor with mechanical agitation was used, with a Ti/RuO2 anode. The parameters studied were the current density that varied in 20, 40 and 60 mA cm-2, the concentration of chloride ions that was 0.04, 0.74, 0.90 to 0.81 mol L-1 and the electrolysis time that varied from 4.0, 5.0, 7.0 and 8.0 h. A 22 experimental design was conducted to determine the significance level of the parameters studied. The results obtained indicated the removal of 99.99% of N-NH3 and 75.60% of total organic carbon (TOC) when a current density of 60 mA cm-2 and a Cl- concentration of 35.5 g L-1 were applied, after 4.0 h of electrolysis. R, R , (R) Cl. Cl . (Cl-) terminal purpose used TiRuO2 TiRuO Ti RuO2 RuO Ti/RuO anode 20 4 6 cm2, cm2 cm 2, 2 004 0 04 0.04 074 74 0.74 090 90 0.9 081 81 0.8 L1 L 1 L- 50 5 5.0 70 7 7. 80 8 8. 9999 99 99.99 NNH3 NNH N NH3 NH N-NH 7560 75 75.60 TOC (TOC cm- 355 35 35. applied 4. (R (Cl- 00 0.0 07 0.7 09 9 0. 08 5. 999 99.9 756 75.6 3 (Cl 99. 75.