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1.
PLoS One ; 19(5): e0280612, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38820411

RESUMEN

BACKGROUND: Approximately 10 to 20% of pregnant women worldwide experience perinatal depression (PND), a depressive episode with onset during pregnancy or after childbirth. We performed a systematic review to identify, summarize and discuss studies on inflammatory biomarkers described in relation to PND. METHOD: Inclusion criteria defined the selection of observational studies written in English, French, Spanish or Portuguese, that evaluate analytical levels of inflammatory molecules (protein levels) in biological fluids in women, with a diagnosis of depression using ICD/DSM diagnostic criteria or depressive symptoms assessed by standardized psychometric instruments, during pregnancy and/or postpartum. Case reports, experimental studies, reviews, qualitative analysis, meta-analysis, gray literature or replicated data were excluded. Three electronic databases were used for search (Pubmed, Web of Science and PsychInfo) and quality assessment of selected studies were performed using the Newcastle-Ottawa Scale. Data extraction included study design; number of subjects; obstetric information; tools and timepoints of depression and inflammatory markers assessment. RESULTS: 56 studies (sample size for cross-sectional and case-control studies ranging from 10 to 469; sample size for longitudinal studies ranging from 26 to 467), where the major aim was to analyze the association between depression and inflammatory biomarkers during pregnancy and postpartum period were included in this systematic review. Overall, the findings of our systematic review lend support to the hypothesis that several inflammatory markers may be associated with peripartum depressive symptoms. The associations were somewhat different looking at pregnancy compared to the delivery time-point and postpartum, and mainly referred to increased levels of IL-6, IL-8, CRP and TNF-α among depressed. DISCUSSION: In summary, our systematic review findings provide evidence supporting the hypothesis that several inflammatory markers may correlate with peripartum depressive symptoms. However, our work also highlighted notable differences in the timing of biological sampling for inflammatory markers and in the methodologies used to assess depression during the perinatal period. Additionally, variations were observed in how inflammatory biomarkers and depression were approached, including their classification as exposure or outcome variables, and the timing of assessments. It is essential for future research to investigate the influence of biological fluids and the timing of assessments for both inflammatory biomarkers and depression to gain a deeper understanding of their association. This comprehensive exploration is pivotal for elucidating the intricate relationship between inflammation and perinatal depression.


Asunto(s)
Biomarcadores , Humanos , Femenino , Embarazo , Biomarcadores/sangre , Complicaciones del Embarazo/psicología , Complicaciones del Embarazo/diagnóstico , Depresión/diagnóstico , Depresión/sangre , Inflamación , Depresión Posparto/sangre , Depresión Posparto/diagnóstico
2.
Front Immunol ; 15: 1341321, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38605950

RESUMEN

Objective: To describe severe infection, foci of infection, microorganisms, associated factors, and impact on mortality in patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD). Patients and methods: The study was based on a multicenter prospective cohort of patients with RA-ILD followed up from 2015 to 2023. The main outcome measures were incident severe infection and fatal infection. We evaluated infectious foci, etiologic agents, vaccination status, variables associated with lung function, and clinical-therapeutic variables in RA. The incidence rate (IR) for infection and mortality was calculated per 100 person-years, and 3 multivariate models were constructed to explore factors associated with infection. Results: We followed up 148 patients with RA-ILD for a median 56.7 months (699.3 person-years). During this period, 142 patients (96%) had at least 1 infection. A total of 368 infectious episodes were recorded, with an IR of 52.6 per 100 person-years. Of the 48 patients who died, 65% did so from infection. Respiratory infections were the most common first infection (74%), infection overall (74%), and fatal infection (80%) and were caused mostly by SARS CoV-2, Streptococcus pneumoniae, Pseudomonas aeruginosa, and influenza A virus. The factors associated with an increased risk of infection and death in patients with RA-ILD were age, inflammatory activity, and therapy with corticosteroids and immunosuppressants. Conclusion: Patients with RA-ILD have a high risk of serious infection, especially respiratory infection. Infection develops early, is recurrent, and is frequently fatal. The presence of associated factors such as advanced age, joint inflammation, and treatment highlight the importance of integrated and preventive medical care.


Asunto(s)
Artritis Reumatoide , Enfermedades Pulmonares Intersticiales , Humanos , Estudios Prospectivos , Artritis Reumatoide/complicaciones , Artritis Reumatoide/epidemiología , Artritis Reumatoide/tratamiento farmacológico , Enfermedades Pulmonares Intersticiales/etiología , Enfermedades Pulmonares Intersticiales/complicaciones , Incidencia
3.
Int J Clin Health Psychol ; 24(2): 100452, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38444886

RESUMEN

Repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) are two of the most used non-pharmacological interventions for Alzheimer's Disease (AD). However, most of the clinical trials have focused on evaluating the effects on global cognition and not on specific cognitive functions. Therefore, considering that memory loss is one of the hallmark symptoms of AD, we aim to assess the efficacy and safety of tDCS and rTMS in memory deficits. For that, multilevel random effect models were performed considering the standardized mean difference (SMD) between active and sham stimulation. A total of 19 studies with 411 participants demonstrated positive effects in memory after tDCS (SMD=0.20, p = 0.04) and rTMS (SMD=0.44, p = 0.001). Subgroup analysis revealed that tDCS had greater efficacy when administered in temporal regions (SMD=0.32, p = 0.04), whereas rTMS was superior when applied in frontal regions (SMD=0.61, p < 0.001). Therefore, depending on the brain region of stimulation, both interventions produced a positive effect on memory symptoms in AD patients. Finally, the safety of both techniques was observed in the AD population after the reporting of almost no serious events.

4.
Appl Environ Microbiol ; 90(2): e0189223, 2024 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-38289132

RESUMEN

The growing concern arising from viruses with pandemic potential and multi-resistant bacteria responsible for hospital-acquired infections and outbreaks of food poisoning has led to an increased awareness of indirect contact transmission. This has resulted in a renewed interest to confer antimicrobial properties to commonly used metallic materials. The present work provides a full characterization of optimized fluoride anodic films grown in stainless steel 304L as well as their antimicrobial properties. Antibacterial tests show that the anodic film, composed mainly of chromium and iron fluorides, reduces the count and the percentage of the area covered by 50% and 87.7% for Pseudomonas aeruginosa and Stenotrophomonas maltophilia, respectively. Virologic tests show that the same treatment reduces the infectivity of the coronavirus HCoV-229E-GFP, in comparison with the non-anodized stainless steel 304L.IMPORTANCEThe importance of environmental surfaces as a source of infection is a topic of particular interest today, as many microorganisms can survive on these surfaces and infect humans through direct contact. Modification of these surfaces by anodizing has been shown to be useful for some alloys of medical interest. This work evaluates the effect of anodizing on stainless steel, a metal widely used in a variety of applications. According to the study, the fluoride anodic layers reduce the colonization of the surfaces by both bacteria and viruses, thus reducing the risk of acquiring infections from these sources.


Asunto(s)
Antiinfecciosos , Fluoruros , Humanos , Fluoruros/farmacología , Acero Inoxidable , Fómites , Bacterias , Antiinfecciosos/farmacología
7.
Gen Hosp Psychiatry ; 84: 102-111, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37419029

RESUMEN

BACKGROUND: The prevalence of perinatal depression increased during the COVID-19 pandemic, which may be due to changes in the profile of specific depressive symptoms. AIMS: To analyze the impact of the COVID-19 pandemic on the (1) prevalence and severity of specific depressive symptoms; and on the (2) prevalence of clinically significant symptoms of depression during pregnancy and postpartum. METHODS: Pregnant and postpartum women recruited before (n = 2395) and during the COVID-19 pandemic (n = 1396) completed a sociodemographic and obstetric questionnaire and the Edinburgh Postnatal Depression Scale (EPDS). For each item, scores ≥1 and ≥ 2 were used to calculate the prevalence and severity of depressive symptoms, respectively. RESULTS: The prevalence and severity of symptoms of depression were significantly higher during the COVID-19 pandemic. The prevalence of specific symptoms increased by >30%, namely "being able to laugh and see the funny side of things" (pregnancy 32.6%, postpartum 40.6%), "looking forward with enjoyment to things" (pregnancy 37.2%, postpartum 47.2%); and "feelings of sadness/miserable" or "unhappiness leading to crying" during postpartum (34.2% and 30.2%, respectively). A substantial increase was observed in the severity of specific symptoms related to feelings that "things have been getting on top of me" during pregnancy and the postpartum period (19.4% and 31.6%, respectively); "feeling sad or miserable" during pregnancy (10.8%); and "feeling scared/panicky" during postpartum (21.4%). CONCLUSION: Special attention should be paid to anhedonia-related symptoms of perinatal depression to ensure that they are adequately managed in present and future situations of crisis.


Asunto(s)
COVID-19 , Depresión Posparto , Embarazo , Femenino , Humanos , Depresión Posparto/epidemiología , Depresión/epidemiología , Anhedonia , COVID-19/epidemiología , Pandemias , Periodo Posparto
8.
Materials (Basel) ; 16(7)2023 Mar 24.
Artículo en Inglés | MEDLINE | ID: mdl-37048883

RESUMEN

This work presents a comparative study related to the photocatalytic efficiency associated with wettability measurements and organic dye degradation, as well as other relevant properties (i.e., corrosion resistance, roughness, wettability, and adhesion to a substrate). The photocatalytic precursors are titanium dioxide nanoparticles (TiO2 NPs) which are dispersed onto a polymeric electrospun fiber matrix by using three different deposition techniques such as electrospraying, spraying, and dip-coating, respectively. In this work, the host electrospun matrix is composed of poly(acrylic acid) fibers crosslinked with cyclodextrin (ß-CD), which shows a good chemical affinity and stability with the other deposition techniques which are responsible for incorporating the TiO2 NPs. In order to evaluate the efficacy of each coating, the resultant photocatalytic activity has been monitored by two different tests. Firstly, the reduction in the water contact angle is appreciated, and secondly, the degradation of an organic dye (Rhodamine B) is observed under UV irradiation. In addition, the final roughness, adherence, and pitting corrosion potential have also been controlled in order to determine which solution provides the best combination of properties. Finally, the experimental results clearly indicate that the presence of TiO2 NPs deposited by the three techniques is enough to induce a super hydrophilic behavior after UV irradiation. However, there are notable differences in photocatalytic efficiency on the Rhodamine B as a function of the selected deposition technique.

9.
Psicooncología (Pozuelo de Alarcón) ; 20(1): 139-153, 11 abr. 2023. tab
Artículo en Inglés | IBECS | ID: ibc-219023

RESUMEN

Objetivo: Analizar la situación laboral, así como variables sociodemográficas (edad, sexo, estado civil y titulación) relacionadas con el cáncer (tipo de cáncer, estrategia de tratamiento primario y fase de supervivencia) en supervivientes españoles de cáncer. Método y procedimiento: Estudio transversal sobre una muestra heterogénea de 772 supervivientes de cáncer de inicio en la edad adulta en edad laboral. Se realizaron análisis correlacionales y de regresión logística para estudiar la capacidad predictiva de las variables sociodemográficas y relacionadas con el cáncer sobre la situación laboral y la posible modulación de los resultados por la CVRS evaluada mediante el QLACS. Resultados: Sólo el 55% de los supervivientes de cáncer estaban empleados. La edad, la cualificación y el tipo de cáncer fueron predictores independientes de la situación laboral, así como de la fase de supervivencia en los supervivientes con una CVRS baja. Conclusiones: Un alto porcentaje de supervivientes en edad laboral no vuelve a trabajar tras la experiencia oncológica. Algunas variables sociodemográficas y relacionadas con la enfermedad pueden ayudar a la identificación precoz de la población de riesgo en la que centrar la atención (AU)


Objective: To analyze the employment status as well as sociodemographic (age, gender, marital status, and qualification) and cancer-related variables (cancer type, primary treatment strategy, and survival phase) in Spanish cancer survivors. Method and procedure: Cross-sectional study on a heterogeneous sample of 772 working-age survivors of adult-onset cancer. Correlational and logistic regression analyses were performed to study the predictive ability of sociodemographic and cancer-related variables on employment status and the possible modulation of results by HRQOL assessed by the QLACS. Results: Only 55% of cancer survivors were employed. Age, qualification, and type of cancer were independent predictors of employment status as well as the survival phase in survivors with a low HRQOL. Conclusions: A high percentage of working-age survivors do not return to work after the cancer experience. Some sociodemographic and disease-related variables can help in the early identification of the risk population on which to focus attention (AU)


Asunto(s)
Humanos , Masculino , Femenino , Adulto Joven , Adulto , Persona de Mediana Edad , Supervivientes de Cáncer/psicología , Reinserción al Trabajo/psicología , Calidad de Vida , Factores Socioeconómicos , Estudios Transversales , España
10.
Materials (Basel) ; 16(4)2023 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-36837133

RESUMEN

Prosthetic joint infection is an uncommon entity, but it supposes high costs, both from the economic side to the health systems and from the emotional side of the patient. The evaluation of the bacterial adherence to different materials frequently involved in joint prostheses allows us to better understand the mechanisms underlying this and provide information for the future development of prevention strategies. This study evaluated the bacterial adherence of four different species (Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli and Pseudomonas aeruginosa) on Ti6Al4V and CoCrMo. The topography, surface contact angles, and linear average roughness were measured in the samples from both alloys. The interaction with the surface of both alloys was significantly different, with the CoCrMo showing an aggregating effect on all the species, with additional anti-adherent activity in the case of Pseudomonas aeruginosa. The viability also changes, with a significant decrease (p < 0.05) in the CoCrMo alloy. In the case of S. epidermidis, the viability in the supernatant from the samples was different, too, with a decrease in the colony-forming units in the Ti6Al4V, which could be related to cation release from the surface. Beyond adhesion is a multifactorial and complex process, and considering that topography and wettability were similar, the chemical composition could play a main role in the different properties observed.

11.
Biomed Pharmacother ; 157: 114049, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36459713

RESUMEN

OBJECTIVES: To describe comorbid conditions in patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD) and to analyze factors associated with multimorbidity. METHODS: Nested case-cohort study of 2 prospective cohorts: one with RA-ILD (cases) and another with RA but not ILD (controls). The cohorts were matched for age, sex, and time since diagnosis. Multimorbidity was defined as the co-occurrence of 2 or more chronic diseases, in addition to RA and ILD. We evaluated the comorbid conditions included in the Charlson Comorbidity Index, cardiovascular risk factors, neuropsychiatric conditions, and other frequent conditions in RA. We also recorded clinical-laboratory variables, inflammatory activity according to the 28-joint Disease Activity Score, C-reactive protein (CRP), physical function, and pulmonary function. We performed 2 multivariate analyses to identify factors associated with multimorbidity in RA and RA-ILD. RESULTS: The final study population comprised 110 cases and 104 controls. Multimorbidity was more frequent among cases than controls (80 [72.7] vs 60 [57.7]; p = 0.021). In both groups, multimorbidity was associated with ILD (OR [95% CI] 1.92 [1.03-3.59]; p = 0.039), age (OR [95% CI] 1.05 [1.01-1.08]; p = 0.004), CRP (OR [95% CI] 1.16 [1.05-1.29]; p = 0.003), and erosions (OR [95% CI] 1.05 [1.01-1.08]; p = 0.004); in the cases, it was associated with CRP (OR [95% CI] 1.17 [1.01-1.35]; p = 0.027), anti-citrullinated peptide antibody (OR [95% CI] 1.23 [1.14-13.02]; p = 0.049), and forced vital capacity (OR [95% CI] 0.79 [0.96-0.99]; p = 0.036). CONCLUSION: In patients with RA, multimorbidity was associated with ILD, systemic inflammation, and advanced age.


Asunto(s)
Artritis Reumatoide , Enfermedades Pulmonares Intersticiales , Humanos , Estudios Prospectivos , Estudios de Cohortes , Artritis Reumatoide/complicaciones , Artritis Reumatoide/epidemiología , Enfermedades Pulmonares Intersticiales/epidemiología , Comorbilidad , Proteína C-Reactiva
12.
Front Psychiatry ; 13: 892573, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35873227

RESUMEN

Background: Meaning-Centered Psychotherapy (MCP) is effective in improving meaning in life, hope, optimism, self-efficacy, well-being, and quality of life, and in reducing stress in people with cancer. However, all the studies on the application of MCP in cancer patients have been carried out in Anglo-Saxon samples. Therefore, it is necessary to adapt and verify the efficacy of MCP in populations that speak languages other than English, such as Spanish. Moreover, to expand the data supporting the efficacy of MCP for cancer patients, it would be necessary to compare MCP to other active therapies such as Cognitive Behavioral Therapy (CBT). Methods: The aims of the proposed study are: the first objective is to verify the efficacy of the MCP intervention for Spanish participants with cancer in a randomized control trial (RCT) comparing it to CBT. The second objective is to analyze the feasibility and acceptance of MCP in Spanish participants with cancer. The third objective is to analyze whether the changes produced in the meaning in life dimensions (presence, search, comprehension, purpose, and mattering) will predict changes in anxiety, depression, quality of life, etc. Our research team adapted MCP for Spanish participants with cancer. This paper presents the study protocol. The study design consists of a two-arm RCT with two conditions: MCP and CBT, where participants will be randomized to one of the two groups. Eligible participants will be adults with stage I, II, and III cancer who were treated with curative intent and had completed their main medical treatment (surgery, radiotherapy, or chemotherapy). Participants will be assessed at pretreatment, post-treatment, and 6-month follow-up. The intention-to-treat principle will be used when analyzing data, using mixed-effects models with full information and maximum likelihood estimation. Discussion: This study will provide results that confirm the efficacy of the MCP in Spanish participants with cancer. Trial Registration: ClinicalTrials.gov; https://register.clinicaltrials.gov/prs/app/template/Home.vm?uid=U0005WS9&ts=4&sid=S000BOTT&cx=bvr2ue, identifier NCT05197348.

13.
Biomedicines ; 10(7)2022 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-35884786

RESUMEN

OBJECTIVE: To prospectively evaluate the safety and efficacy profile of abatacept in patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD). METHODS: We performed a prospective observational multicenter study of a cohort of patients with RA-ILD treated with abatacept between 2015 and 2021. Patients were evaluated using high-resolution computed tomography and pulmonary function tests at initiation, 12 months, and the end of follow-up. The effectiveness of abatacept was evaluated based on whether ILD improved, stabilized, progressed, or was fatal. We also evaluated factors such as infection, hospitalization, and inflammatory activity using the 28-joint Disease Activity Score with the erythrocyte sedimentation rate (DAS28-ESR). Cox regression analysis was performed to identify factors associated with progression of lung disease. RESULTS: The study population comprised 57 patients with RA-ILD treated with abatacept for a median (IQR) of 27.3 (12.2-42.8) months. Lung disease had progressed before starting abatacept in 45.6% of patients. At the end of follow-up, lung disease had improved or stabilized in 41 patients (71.9%) and worsened in 13 (22.8%); 3 patients (5.3%) died. No significant decreases were observed in forced vital capacity (FVC) or in the diffusing capacity of the lung for carbon monoxide (DLCO).The factors associated with progression of RA-ILD were baseline DAS28-ESR (OR [95% CI], 2.52 [1.03-3.12]; p = 0.041), FVC (OR [95% CI], 0.82 [0.70-0.96]; p = 0.019), and DLCO (OR [95% CI], 0.83 [0.72-0.96]; p = 0.018). Only 10.5% of patients experienced severe adverse effects. CONCLUSION: Pulmonary function and joint inflammation stabilized in 71% of patients with RA-ILD treated with abatacept. Abatacept had a favorable safety profile.

14.
Artículo en Inglés | MEDLINE | ID: mdl-35682178

RESUMEN

Tobacco consumption during pregnancy is a serious public health problem due to its negative effects on fetal development and on pregnant women's health and well-being. Thus, it is of utmost importance to plan and implement smoking cessation interventions, to prevent the negative impact of this risk factor, namely on children's health and development. This cross-sectional study aimed at exploring the perceptions and beliefs about the usefulness of smoking cessation interventions during pregnancy, in a sample of pregnant Portuguese women. The smoking use by pregnant women, as well as the risk factors associated with tobacco smoking during pregnancy, were also analyzed. The sample included 247 pregnant Portuguese women aged between 18-43-years-old (M = 30.30, SD = 5.02): 42.5% never smoked, 18.3% quit smoking before pregnancy, 19.0% quit smoking after getting pregnant and 20.2% were current smokers. The pregnant Portuguese women who smoked during pregnancy (current smokers or who quit smoking after getting pregnant) were mostly single or divorced, with lower education levels, showed a higher prevalence of clinically significant anxiety symptoms, and perceived smoking cessation interventions during pregnancy as less useful when compared to women who never smoked or quit smoking prior pregnancy. Daily or weekly smoking cessation interventions, implemented by health professionals such as doctors, nurses, or psychologists are the ones perceived as the most useful for pregnant women. These findings provide important clues for the planning of smoking cessation interventions during pregnancy, highlighting the domains that should be carefully monitored by health professionals. Specific strategies should also be used by health professionals to promote smoking cessation considering the demands of pregnancy and postpartum.


Asunto(s)
Cese del Hábito de Fumar , Adolescente , Adulto , Niño , Estudios Transversales , Femenino , Humanos , Percepción , Embarazo , Mujeres Embarazadas , Fumar/efectos adversos , Fumar/epidemiología , Nicotiana , Fumar Tabaco , Adulto Joven
15.
J Clin Med ; 11(9)2022 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-35566564

RESUMEN

Objectives: To describe the frequency of COVID-19 and the effect of vaccination in patients with interstitial lung disease and systemic autoimmune disease (ILD-SAD) and to identify factors associated with infection and severity of COVID-19. Methods: We performed a cross-sectional multicenter study of patients with ILD-SAD followed between June and October 2021. The main variable was COVID-19 infection confirmed by a positive polymerase chain reaction (PCR) result for SARS-CoV-2. The secondary variables included severity of COVID-19, if the patient had to be admitted to hospital or died of the disease, and vaccination status. Other variables included clinical and treatment characteristics, pulmonary function and high-resolution computed tomography. Two logistic regression was performed to explore factors associated with "COVID-19" and "severe COVID-19". Results: We included 176 patients with ILD-SAD: 105 (59.7%) had rheumatoid arthritis, 49 (27.8%) systemic sclerosis, and 22 (12.54%) inflammatory myopathies. We recorded 22/179 (12.5%) SARS-CoV-2 infections, 7/22 (31.8%) of them were severe and 3/22 (13.22%) died. As to the vaccination, 163/176 (92.6%) patients received the complete doses. The factors associated with SARS-CoV-2 infection were FVC (OR (95% CI), 0.971 (0.946−0.989); p = 0.040), vaccination (OR (95% CI), 0.169 (0.030−0.570); p = 0.004), and rituximab (OR (95% CI), 3.490 (1.129−6.100); p = 0.029). The factors associated with severe COVID-19 were the protective effect of the vaccine (OR (95% CI), 0.024 (0.004−0.170); p < 0.001) and diabetes mellitus (OR (95% CI), 4.923 (1.508−19.097); p = 0.018). Conclusions: Around 13% of patients with ILD-SAD had SARS-CoV-2 infection, which was severe in approximately one-third. Most patients with severe infection were not fully vaccinated.

18.
Materials (Basel) ; 15(5)2022 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-35269125

RESUMEN

Anodic layers have been grown on 304L stainless steel (304L SS) using two kinds of fluoride-free organic electrolytes. The replacement of NH4F for NaAlO2 or Na2SiO3 in the glycerol solution and the influence of the H2O concentration have been examined. The obtained anodic layers were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and potentiodynamic polarization tests. Here, it was found that, although the anodic layers fabricated within the NaAlO2-electrolyte and high H2O concentrations presented limited adherence to the substrate, the anodizing in the Na2SiO3-electrolyte and low H2O concentrations allowed the growth oxide layers, and even a type of ordered morphology was observed. Furthermore, the electrochemical tests in chloride solution determined low chemical stability and active behavior of oxide layers grown in NaAlO2-electrolyte. In contrast, the corrosion resistance was improved approximately one order of magnitude compared to the non-anodized 304L SS substrate for the anodizing treatment in glycerol, 0.05 M Na2SiO3, and 1.7 vol% H2O at 20 mA/cm2 for 6 min. Thus, this anodizing condition offers insight into the sustainable growth of oxide layers with potential anti-corrosion properties.

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