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1.
IUCrdata ; 9(Pt 3): x240222, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38586518

RESUMEN

The title mol-ecule, C12H15NO5, is a methyl carbamate derivative obtained by reacting (R)-2-phenyl-glycinol and methyl chloro-formate, with calcium hydroxide as heterogeneous catalyst. Supra-molecular chains are formed in the [100] direction, based on N-H⋯O hydrogen bonds between the amide and carboxyl-ate groups. These chains weakly inter-act in the crystal, and the phenyl rings do not display significant π-π inter-actions.

2.
Neurol Sci ; 2024 Mar 27.
Artículo en Inglés | MEDLINE | ID: mdl-38536549

RESUMEN

PURPOSE: Migraine is the comorbidity most frequently associated with visual snow syndrome (VSS), but the prevalence of VSS in patients with migraine (PWM) has not been studied. Our objective was to evaluate the frequency of VSS in PWM and to analyze if symptoms of VSS happened in a permanent or episodic manner (eVSS) in this population. METHODS: We conducted a multicenter observational cross-sectional study. PWM was recruited from headache units, and a survey about the presence of visual snow symptoms was administered. The frequency and characteristics of patients that met current VSS criteria were analyzed. Demographic and clinical features of patients with VSS, eVSS, and PWM with no visual snow were compared. RESULTS: A total of 217 PWM were included. Seventeen patients (7.8%) met the VSS criteria. VSS patients had visual aura more frequently (58.8% vs. 31%; p = 0.019) and a higher MIDAS score (96.6 vs. 47.7; p = 0.014). Fifty-eight PWM (26.7%) showed visual snow and associated features in an episodic way and were classified as eVSS. Patients with VSS showed a tendency towards a higher frequency of visual symptoms than patients with eVSS (p > 0.05). No statistically significant differences in sociodemographic characteristics and comorbid conditions were found between VSS and eVSS. CONCLUSION: The prevalence of VSS in PWM may be higher than that described for the general population. Some PWM may present similar visual symptoms to patients with VSS but in an episodic manner. Our study reinforces the observation that the clinical spectrum of visual snow is likely to be broader than previously described.

3.
PM R ; 2024 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-38494596

RESUMEN

The retention of physicians and other health care professionals in rehabilitation medicine is a critical issue that affects patients' access to care and the quality of the care they receive. In the United States and globally, there are known shortages of clinicians including, but not limited to, physicians, nurses, physical therapists, occupational therapists, and speech-language pathologists. These shortages are predicted to worsen in the future. It is known that attrition occurs in a variety of ways such as a clinician reducing work hours or effort, taking a position at another organization, leaving the field of medicine altogether, stress-related illness, and suicide. Retention efforts should focus on stay factors by creating a positive culture that supports a sense of belonging as well as addressing a myriad of push and pull factors that lead to attrition. In this commentary, we provide a roadmap that includes examples of stay strategies for individuals and organizations to adopt that are aimed at enhancing the retention of rehabilitation medicine professionals.

4.
Comunidad (Barc., Internet) ; 26(1): 31-34, mar. 2024.
Artículo en Español | IBECS | ID: ibc-231850

RESUMEN

Las escuelas de salud son proyectos comunitarios con un bagaje y una evidencia científica ya conocidos y demostrados. Su influencia en la mejora de la calidad de vida de las persones mayores con soledad no deseada es uno de sus grandes beneficios. Por este motivo, como equipo de Atención Primaria apostamos por ella. El objetivo principal de la escuela es promover el envejecimiento activo y mejorar el estado de salud percibido por las persones mayores de 60 años participantes. Las escuelas de salud son espacios sanadores. Su repercusión es bidireccional, ya que influye en todas las personas que participan, mejorando su calidad de vida y dotándolas de herramientas útiles y sencillas para su día a día a través de los conocimientos adquiridos y las experiencias compartidas. Generar puntos de encuentro en el barrio enriquece y aporta salud más allá de los centros sanitarios. Salir a la calle, hablar de igual a igual, fomentar las redes de apoyo y vincularse a una red, son elementos que fortalecen y mejoran la vertiente social de las personas, ayudándolas a curar heridas de vida. Apostar por la salud comunitaria, es apostar por la salud en todas sus dimensiones. (AU)


Health schools are community projects with a well-known and proven scientific past and background. Their influence in improving the quality of life for elderly individuals experiencing unwanted loneliness is one of their significant benefits. That's why we, as a primary health care team, decided to support it. The main aim of the school is to promote active aging and enhance the perceived health status of participants aged over 60. Health schools are healing spaces. Their impact is bidirectional, which has an impact on all participants. Our quality of life improves as we share knowledge and experiences, providing us with healing, useful and straightforward tools for our daily lives. Creating meeting points in the neighbourhood enriches us and contributes to our well-being beyond healthcare centres. Going out into the community, having peer to peer conversations, fostering support networks, and connecting with others sustain us and make us socially stronger, healing life's wounds. To take a chance on the community is in essence to bet on health in all its dimensions. (AU)


Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Instituciones Académicas , Participación de la Comunidad/métodos , Integración a la Comunidad , Envejecimiento Saludable , Salud Pública , Salud del Anciano
5.
ACS Omega ; 9(1): 196-203, 2024 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-38222520

RESUMEN

Apple (Malus domestica Borkh) is an appreciated source of polyphenols. Phenolic compounds are known as natural antioxidants and have a wide range of applications in different industries. Apple pomace has the potential of being an alternative source of polyphenols. To determine the polyphenolic profile of apple pomace, samples from the skin at two different stages of ripening were extracted with 80-20% EtOH-water/acetic acid 5% (S1) and 20-80% EtOH-water/acetic acid 5% (S2) in order to determine the solvent system. Ripe skins extracted with S1 showed a higher total polyphenol content or TPC (1.21 g of polyphenols per 100 g of fresh weight (FW)) than unripe apple skin, being the most effective system tested and a mean degree of polymerization of 2.47. Commercial apple pomace was extracted with S1, resulting in a TPC of 0.5615 ± 0.007 g of polyphenols per 100 g of FW. Meanwhile, the RP-HPLC-MS analysis led to the tentative identification of several polyphenolic compounds.

6.
Support Care Cancer ; 32(1): 83, 2024 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-38177946

RESUMEN

PURPOSE/OBJECTIVES: Radiation therapy (RT) is a central component of cancer treatment with survival and long-term quality-of-life benefits across a spectrum of oncologic diagnoses. However, RT has been associated with varying levels of fatigue, pain, weight loss, and changes in mental health both during and post-treatment. Prehabilitation aims to optimize health prior to anti-neoplastic therapy in order to reduce side effects, increase adherence to treatment, expedite post-treatment recovery, and improve long-term outcomes. Though prehabilitation has been studied in those undergoing cancer-related surgery, literature on prehabilitation in individuals undergoing RT has not been comprehensively explored. Thus, this scoping review aims to summarize the existing literature focused on prehabilitation interventions for patients receiving RT. MATERIALS/METHODS: The PRISMA-ScR checklist for conducting scoping reviews was adopted to identify and evaluate studies investigating the efficacy of prehabilitation before and during RT for cancer over the past 21 years (10/2002-10/2022). A search of prehabilitation and RT was performed to identify studies investigating prehabilitation interventions in adult cancer patients undergoing RT. RESULTS: A total of 30 articles met inclusion criteria, yielding 3657 total participants. Eighteen (60%) studies were randomized controlled trials (RCTs) with sample sizes ranging from 21 to 221. The most commonly studied populations were patients with head and neck cancer, followed by rectal, breast, and lung cancer. A majority (80%) of studies evaluated one prehabilitation intervention (i.e., unimodal). Targeted physical exercises were the most common intervention, followed by general physical exercises and technology/apps. Adherence/feasibility was the most common primary outcome, representing 30% of studies. All studies reported data on sex, and 5 (17%) reported data on race and/or ethnicity. CONCLUSIONS: Prehabilitation interventions have been successfully implemented in patients with cancer undergoing surgical treatment. Based on limited current literature, prehabilitation appears to have a promising effect in reducing morbidity in adult cancer patients requiring RT. Though our review identified many RCTs, they were frequently small sample trials with primary outcomes focused on feasibility, rather than functional status or quality of life. Thus, there is a need for adequately powered, randomized controlled intervention trials to investigate the efficacy of prehabilitation and maximize the treatment outcomes for patients undergoing RT.


Asunto(s)
Neoplasias , Ejercicio Preoperatorio , Adulto , Humanos , Ejercicio Físico , Terapia por Ejercicio , Dolor , Neoplasias/radioterapia
7.
Iran J Basic Med Sci ; 27(1): 12-15, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38164479

RESUMEN

Living Donor Liver Transplantation (LDLT) is a promising approach to treating end-stage liver diseases, however, some post-operatory complications such as pneumonia, bacteremia, urinary tract infections, and hepatic dysfunction have been reported. In murine models using partial hepatectomy (PHx), a model that emulates LDLT, it has been determined that the synthesis of hepatic cell proliferation factors that are associated with noradrenaline synthesis are produced in locus coeruleus (LC). In addition, studies have shown that PHx decreases GABA and 5-HT2A receptors, promotes loss of dendritic spines, and favors microgliosis in rat hippocampus. The GABA and serotonin-altered circuits suggest that catecholaminergic neurons such as dopamine and noradrenaline neurons, which are highly susceptible to cellular stress, can also be damaged. To understand post-transplant affections and to perform well-controlled studies it is necessary to know the potential causes that explain as a liver surgical procedure can produce brain damage. In this paper, we review several cellular processes that could induce gliosis in LC after rat PHx.

9.
Acta Histochem ; 126(1): 152117, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38016413

RESUMEN

Bromodeoxyuridine (BrdU) is used in studies related to cell proliferation and neurogenesis. The multiple intraperitoneal injections of this molecule could favor liver function profile changes. In this study, we evaluate the systemic and hepatocellular impact of BrdU in male adult Wistar rats in 30 %-partial hepatectomy (PHx) model. The rats received BrdU 50 mg/Kg by intraperitoneal injection at 0.5, 1, 2, 3, 6, 9 and 16 days after 30 %-PH. The rats were distributed into four groups as follows, control, sham, PHx/BrdU(-) and PHx/BrdU(+). On day 16, we evaluated hepatocellular nuclei and analyzed histopathological features by haematoxylin-eosin stain and apoptotic profile was qualified by caspase-3 presence. The systemic effect was evaluated by liver markers such as alanine transferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), alkaline phosphatase (AP), bilirubin, total proteins and serum albumin content. The statistical analysis consisted of a student t-test and one-way ANOVA. BrdU did not induce apoptosis or hepatocellular damage in male rats. Multiple administrations of BrdU in male rats did not induce significant decrease body weight, but increased serum ALT and LDH levels were found. Our results show that the BrdU does not produce hepatocellular damage.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Ratas , Masculino , Animales , Ratas Wistar , Bromodesoxiuridina/farmacología , Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/patología , Hígado/patología , Alanina Transaminasa/metabolismo , Alanina Transaminasa/farmacología , Aspartato Aminotransferasas/metabolismo , Aspartato Aminotransferasas/farmacología
10.
Child Adolesc Psychiatr Clin N Am ; 33(1): 17-32, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37981333

RESUMEN

Documented disparities have profoundly impacted the training and careers of physicians from socially and historically marginalized groups, including women, people with disabilities, people who identify with racial and ethnic minority groups, and the lesbian, gay, bisexual, transgender, and queer or questioning+ community. Professionalism is a core component of medical training and practice, yet a focus on workforce diversity, equity, and inclusion is often absent. This report aims to encourage the adoption of workforce diversity, equity, and inclusion as a crucial component of professionalism, with an emphasis on the field of psychiatry.


Asunto(s)
Profesionalismo , Psiquiatría , Humanos , Femenino , Etnicidad , Grupos Minoritarios , Recursos Humanos
11.
Eur Urol Focus ; 2023 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-37996272

RESUMEN

The aim of prehabilitation is to improve the physical and emotional health of patients before upcoming surgery or therapies. This mini-review focuses on current advances in urological prehabilitation and how it can be used together with enhanced recovery after surgery and conventional rehabilitation protocols. Urological prehabilitation has primarily focused on improving urinary continence, erectile function, bone density, and lean body mass, with some promising results for all of these outcomes. Although all cancer patients should be considered for prehabilitation, older or medically frail individuals may derive the greatest benefit. PATIENT SUMMARY: This mini-review discusses prehabilitation as part of the care for cancer patients. Although the research on prehabilitation is evolving, current studies generally demonstrate that it may help to enhance a patient's strength and endurance before upcoming surgery or other treatments.

12.
Horm Behav ; 156: 105428, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37748275

RESUMEN

Many species exhibit biparental care to maximize fitness. When a partner is lost, the surviving partner may alter their behavior to compensate offspring. Whether both sexes use the same physiological mechanisms to manifest their change in behavior remains elusive. We investigated behaviors and mechanisms associated with the alteration of parental care post-partner removal in a biparental avian species, the rock dove (Columba livia). We hypothesized that rock dove single parents experience sex-biased changes in neural genomic transcription and reproductive behaviors, and these changes are related to chick development. We manipulated parental partner presence and measured parental attendance, offspring growth, gene expression of glucocorticoid receptors (GR) and mineralocorticoid receptors (MR) in the pituitary, and GR, MR, and estrogen receptor beta (ER-ß) in the hypothalamus. We also measured circulating plasma concentrations of the stress-associated hormone corticosterone and the parental care-associated hormone prolactin. We also quantified prolactin gene (PRL) expression changes in the pituitary, as well as prolactin receptor (PRLR) expression in the hypothalamus and pituitary. We found that single mothers and fathers maintained similar provisioning levels as paired parents, but spent less cumulative time brooding chicks. Chicks of single parents were smaller than paired-parented chicks after three days post-hatch. Mothers in both treatment groups experienced higher expression of hypothalamic GR as compared to fathers. Single parents experienced lower PRL gene expression in the pituitary as compared to paired parents. No significant differences were found for the circulating hormones or other genes listed.


Asunto(s)
Columbidae , Prolactina , Animales , Femenino , Masculino , Columbidae/metabolismo , Responsabilidad Parental , Hipotálamo/metabolismo , Hipófisis/metabolismo , Corticosterona
13.
Pediatr Allergy Immunol ; 34(8): e14006, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37622255

RESUMEN

BACKGROUND: Anaphylaxis is rising in prevalence among children. The current recommendations on the effective transition of anaphylaxis management to adolescents and young adults suggest preparation for the transition may be considered at 11-13 years of age in accordance with the patient's developmental stage. However, there has been limited research conducted on the perspective of caregivers regarding the transition of anaphylaxis management to their children. This study aims to determine the age caregivers feel it is appropriate to begin to teach their child to recognize anaphylaxis and use their adrenaline auto-injectors (AAI). METHODS: Caregivers of pediatric allergy patients who have been diagnosed with IgE-mediated food allergy and have an AAI prescription were contacted by phone and invited to complete a questionnaire about when they feel it is appropriate to begin to teach their child to recognize anaphylaxis and use their AAI. RESULTS: Of the 123 responses to the questionnaire received, 44.7% indicated that 9-11 years was the appropriate time for teaching their children to self-inject an AAI. History of severe anaphylaxis (94.3%), child's ability to describe reasons to inject adrenaline (87.8%), and demonstrate AAI use (82.1%) were "very important" readiness factors identified. Almost half of caregivers were "not confident" (8.94%) or "somewhat confident" (40.65%) in training their child to use AAI. Caregivers with higher household incomes more frequently identified themselves as the party responsible for training their children to use AAI (p = .04). CONCLUSION: Caregivers in this sample expressed different perspectives than the current guidelines regarding the timing to initiate the transition of anaphylaxis management to their child. Caregivers expressed suboptimal confidence in teaching their children to use AAI. Clinicians should be aware of the factors that may indicate caregivers' desire to initiate an earlier transition of anaphylaxis management to their child and ensure access to appropriate training, education and support is available.


Asunto(s)
Anafilaxia , Hipersensibilidad a los Alimentos , Adolescente , Adulto Joven , Niño , Humanos , Anafilaxia/diagnóstico , Cuidadores , Hipersensibilidad a los Alimentos/diagnóstico , Epinefrina/uso terapéutico , Emociones
15.
Phys Med Rehabil Clin N Am ; 34(3): 523-538, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37419529

RESUMEN

The challenging circumstances of the COVID-19 pandemic caused a regression in baseline health of disadvantaged populations, including individuals with frail syndrome, older age, disability, and racial-ethnic minority status. These patients often have more comorbidities and are associated with increased risk of poor postoperative complications, hospital readmissions, longer length of stay, nonhome discharges, poor patient satisfaction, and mortality. There is critical need to advance frailty assessments to improve preoperative health in older populations. Establishing a gold standard for measuring frailty will improve identification of vulnerable, older patients, and subsequently direct designs for population-specific, multimodal prehabilitation to reduce postoperative morbidity and mortality.


Asunto(s)
COVID-19 , Fragilidad , Humanos , Anciano , Anciano Frágil , Ejercicio Preoperatorio , Etnicidad , Pandemias , COVID-19/epidemiología , Grupos Minoritarios
16.
Phys Med Rehabil Clin N Am ; 34(3): 657-675, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37419538

RESUMEN

The coronavirus disease-2019 pandemic exposed and expanded upon preexisting health care disparities. Individuals with disabilities and those who identify with racial/ethnic minority groups have been disproportionately adversely impacted. These inequities are likely present in the proportions of individuals impacted by post-acute sequelae of severe acute respiratory syndrome coronavirus 2 infection requiring specialized rehabilitation. Specific populations including, but not limited to pregnant, pediatric, and older individuals, may also necessitate tailored medical care during acute infection and beyond. Telemedicine may reduce the care gap. Further research and clinical guidance are needed to provide equitable, culturally competent, and individualized care to these historically or socially marginalized and underrepresented populations.


Asunto(s)
COVID-19 , Humanos , Niño , COVID-19/epidemiología , Etnicidad , Disparidades en Atención de Salud , SARS-CoV-2 , Pandemias , Grupos Minoritarios , Accesibilidad a los Servicios de Salud
17.
JCSM Rapid Commun ; 6(1): 18-25, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37273449

RESUMEN

Background: Despite robust weight loss and cardiometabolic benefit, lean mass loss following sleeve gastrectomy (SG) confers health risk. Bisphosphonates are a potential therapeutic agent for lean mass maintenance. Thus, our objective was to explore the effect of six months of risedronate (vs placebo) on change in dual energy x-ray absorptiometry (DXA) and computed tomography (CT) derived lean mass metrics in the year following SG. Methods: 24 SG patients were randomized to six months of 150 mg oral risedronate or placebo capsules (NCT03411902). Body composition was assessed at baseline and six months with optional 12-month follow-up using whole-body DXA and CT at the lumbar spine and mid-thigh. Group treatment effects and 95% CIs were generated from a mixed model using contrast statements at six and 12 months, adjusted for baseline values. Results: Of 24 participants enrolled [55.7±6.7 years (mean±SD), 79% Caucasian, 83% women, body mass index (BMI) 44.7±6.3kg/m2], 21 returned for six-month testing, and 14 returned for 12-month testing. Six-month weight loss was -16.3 kg (-20.0, -12.5) and -20.9 kg (-23.7, -18.1) in the risedronate and placebo groups, respectively (p=.057). Primary analysis at six-months revealed a non-significant sparing of appendicular lean mass in the risedronate group compared to placebo [-1.2 kg (-2.3, -0.1) vs -2.1 kg (-3.0, -1.2)]; p=.20. By 12-months, the risedronate group displayed no change in appendicular lean mass from baseline [-0.5 kg (-1.5, 0.6)]; however, the placebo group experienced significantly augmented loss [-2.9 kg (-3.6, -2.1)]. Conclusion: Pilot data indicate risedronate treatment may mitigate appendicular lean mass loss following SG. Further study is warranted.

18.
J Headache Pain ; 24(1): 63, 2023 Jun 02.
Artículo en Inglés | MEDLINE | ID: mdl-37268904

RESUMEN

BACKGROUND: Anti-CGRP monoclonal antibodies have shown notable effectiveness and tolerability in migraine patients; however, data on their use in elderly patients is still lacking, as clinical trials have implicit age restrictions and real-world evidence is scarce. In this study, we aimed to describe the safety and effectiveness of erenumab, galcanezumab and fremanezumab in migraine patients over 65 years old in real-life. METHODS: In this observational real-life study, a retrospective analysis of prospectively collected data from 18 different headache units in Spain was performed. Migraine patients who started treatment with any anti-CGRP monoclonal antibody after the age of 65 years were included. Primary endpoints were reduction in monthly migraine days after 6 months of treatment and the presence of adverse effects. Secondary endpoints were reductions in headache and medication intake frequencies by months 3 and 6, response rates, changes in patient-reported outcomes and reasons for discontinuation. As a subanalysis, reduction in monthly migraine days and proportion of adverse effects were also compared among the three monoclonal antibodies. RESULTS: A total of 162 patients were included, median age 68 years (range 65-87), 74.1% women. 42% had dyslipidaemia, 40.3% hypertension, 8% diabetes, and 6.2% previous cardiovascular ischaemic disease. The reduction in monthly migraine days at month 6 was 10.1 ± 7.3 days. A total of 25.3% of patients presented adverse effects, all of them mild, with only two cases of blood pressure increase. Headache and medication intake frequencies were significantly reduced, and patient-reported outcomes were improved. The proportions of responders were 68%, 57%, 33% and 9% for reductions in monthly migraine days ≥ 30%, ≥ 50%, ≥ 75% and 100%, respectively. A total of 72.8% of patients continued with the treatment after 6 months. The reduction in migraine days was similar for the different anti-CGRP treatments, but fewer adverse effects were detected with fremanezumab (7.7%). CONCLUSIONS: Anti-CGRP mAbs are safe and effective treatments in migraine patients over 65 years old in real-life clinical practice.


Asunto(s)
Enfermedades Cardiovasculares , Trastornos Migrañosos , Humanos , Femenino , Anciano , Anciano de 80 o más Años , Masculino , Estudios Retrospectivos , Anticuerpos Monoclonales/efectos adversos , Trastornos Migrañosos/tratamiento farmacológico , Trastornos Migrañosos/inducido químicamente , Cefalea/tratamiento farmacológico , Resultado del Tratamiento
20.
CienciaUAT ; 17(2): 24-36, ene.-jun. 2023. tab, graf
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1447821

RESUMEN

RESUMEN Existe un interés global en la detección de gases tóxicos, para la protección del medio ambiente y los seres humanos. Se han desarrollado múltiples estudios enfocados en el uso de sensores de gases basados en óxidos metálicos, como es el óxido de zinc (ZnO), el cual presenta propiedades electrónicas específicas como sensor de gases por ser un semiconductor tipo n y bajo costo de producción. El objetivo de este trabajo fue analizar el uso de nanoestructuras de ZnO, para la fabricación de sensores del gas ácido sulfhídrico (H2S), así como las técnicas de obtención más comunes de dichas estructuras. Las características de las nanoestructuras de óxido de zinc (NE´s-ZnO) varían por efecto del método de obtención, generando diferentes morfologías y tamaño, que impactan en la capacidad de detección de gas (0.5 ppm a 600 ppm) y en el rango de temperatura que se requiere. Los avances en la generación de diversas NE´s-ZnO facilitarán la posibilidad de generar sensores que puedan ser utilizados en detectores portátiles y operen a temperatura ambiente, lo cual es un reto actual.


ABSTRACT There is a global interest in the detection of toxic gases for the protection of the environment and human beings, using low-cost and easy-to-use sensors. Multiple studies have focused on the use of gas detectors based on metal oxides, such as zinc oxide (ZnO), which has specific electronic properties as a gas detector because it is an n-type semiconductor and it has a low production cost. The objective of this work was to analyze the use of ZnO nanostructures for the manufacturing of hydrogen sulfide (H2S) gas sensors, as well as the most common techniques for obtaining these structures. The characteristics of zinc oxide nanostructures (NE´s-ZnO) vary due to the effect of the obtaining method, generating different morphologies and sizes, which impacts gas detection performance (0.5 ppm up to 600 ppm) and in the temperature range that is required. Advances in the design of various NE's-ZnO will have the possibility of generating sensors that can be used in portable detectors and operate at room temperature, which is a current challenge.

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