Synthesis of graphite/Ag/AgCl nanocomposite electrode materials

Publication date: Available online 20 January 2020Source: Materials Today: ProceedingsAuthor(s): I.A. Malbakhova, A.I. Titkov, N.F. Uvarov, A.S. UlihinAbstractNanocomposite electrode materials composed of graphite, Ag and AgCl were prepared by impregnation of graphite with a suspension of silver nanoparticles followed by anodizing in hydrochloric acid to obtain a layer of silver chloride on the surface of the nanoparticles. Silver nanoparticles were synthesized by the reduction of silver salts in benzyl alcohol. It was shown that the mass fraction of 1% Ag in the nanocomposite is optimal for creating a uniform coating of carbon surface with nanoparticles. The preliminary treatment of the graphite surface by the 0.75HNO3-0.25H2SO4 mixture resulted in formation of silver nanoparticles with the smallest size of 5–10 nm and their uniform distribution over the graphite surface. It was found that the nanocomposite electrode materials under study meet general requirements for electrocardiographic electrodes.
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research

Related Links:

Conclusions: AUD patients with excessive alcohol use had a higher risk of arrhythmia and sudden death compared to the control group. Consideration of ECG and referral to cardiologic examinations would contribute to the follow-up and health of patients with AUD. PMID: 32065846 [PubMed - in process]
Source: The Primary Care Companion for CNS Disorders - Category: Primary Care Tags: Prim Care Companion CNS Disord Source Type: research
Abstract BACKGROUND AND OBJECTIVES: Young adults with childhood maltreatment (CM) histories are particularly vulnerable to depressive symptoms and alcohol use problems. Research suggests that maltreated youth may misuse alcohol in part to alleviate depressive symptoms. However, many youths with depressive symptoms exercise self-control and abstain from heavy alcohol use. The present study aimed to examine the influence of heart rate variability reactivity (HRV-R), a psychophysiological biomarker of self-regulation, in the indirect link between CM and alcohol-use problems via depressive symptoms among low socioecon...
Source: American Journal on Addictions - Category: Addiction Authors: Tags: Am J Addict Source Type: research
A 61 y.o. male with a history of HTN and ETOH developed squeezing epigastric abdominal pain with associated vomiting and diaphoresis, followed by a syncopal episode which lasted about 10 seconds.When medics arrived, he denied any chest pain, shortness of breath, or palpitations prior to the syncopal episode.They recorded a prehospital ECG and diagnosed STEMI and activated the cath lab prehospital.I heard that a prehospital cath lab activation was on its way.The patient arrived and we viewed the prehospital ECG:There is ST elevation in V1 and V2There is ST depression in II, III, aVFThere is ST depression and T-wave inversio...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
AbstractAims/IntroductionTo investigate the association of alternative glycemic measures —namely, serum glycated albumin (GA), hemoglobin A1c (HbA1c), and the GA/HbA1c ratio —with global brain and hippocampal atrophy in a general elderly Japanese population.Materials and Methods1,278 Japanese subjects aged ≥65 years in a community participated in brain magnetic resonance imaging (MRI) scanning and screening examination of health status in 2012. We measured total brain volume (TBV), hippocampal volume (HV), and intracranial volume (ICV) using the data from the MRI examination. The association of each glycemic...
Source: Journal of Diabetes Investigation - Category: Endocrinology Authors: Tags: ORIGINAL ARTICLE Source Type: research
CONCLUSIONS: Diminished cardiovascular sensitivity to oral alcohol in FH+ persons varied within a given drinking episode depending on emotional and alcohol-related features of the context, suggesting that environmental characteristics play a role in the expression of low sensitivity to alcohol among FH+ individuals. PMID: 31984514 [PubMed - as supplied by publisher]
Source: Alcoholism, Clinical and Experimental Research - Category: Addiction Authors: Tags: Alcohol Clin Exp Res Source Type: research
Conclusion: There was a high prevalence of MetS and abnormal ECG among the studied population. Abnormal ECG findings were more common in men with no differential association in people with or without MetS. However, a significant association existed between certain components of MetS and ECG abnormalities in men only. Male gender and HDLc were independent predictors of ECG Abnormalities.Keyword: Electrocardiography, metabolic syndrome, africans.
Source: African Health Sciences - Category: African Health Source Type: research
In this study, we investigated the benefits of the electrocardiogram (ECG)-based R wave pulse wave index (ERWVI) for the diagnosis of CA. MATERIAL AND METHODS According to CA examinations by color Doppler ultrasound, patients were assigned to positive and negative groups. The ECG R wave-Pulse wave transit time (ERWPTT) was obtained by synchronously collecting ECG signals (R wave in ECG) and the time variations in maximum finger pulse oxygen (DOP) on the ECG monitor. RESULTS ERPWI was positively correlated with sex, age, BMI, diastolic/systolic blood pressure, fasting blood glucose, uric acid, cholesterol and triglyceride l...
Source: Medical Science Monitor - Category: Research Tags: Med Sci Monit Source Type: research
This report describes a singular case of Takotsubo cardiomyopathy precipitated by delirium tremens in a cirrhotic patient with acute-on-chronic liver failure.
Source: Clinics and Research in Hepatology and Gastroenterology - Category: Gastroenterology Source Type: research
ConclusionsClinicians may consider deferring immediate cardiac catheterization and attribute electrocardiogram changes to acute pancreatitis in patients presenting with angina pectoris and acute pancreatitis if confirmed by normal cardiac enzymes and elevated levels of lipase and amylase. However, when clinical signs and electrocardiogram findings are highly suggestive of myocardial ischemia/injury, immediate noninvasive coronary computed tomography angiography may be the best approach to make an early diagnosis.
Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
A 40-something woman with h/o obesity, hyperlipidemia, smoking, as well as cocaine and alcohol abuse presented with intermittent chest pain for 2-3 weeks that became constant in the last day.  There is also some generalized weakness.  There is some associated SOB, but no nausea and vomiting.Here is the initial EKG:What do you think?There is sinus rhythm, a bit of ST depression (II, aVF, III, V2-V6) and apparently very wide and large T-waves.  However, if one looks closely, one sees a distinct and prominent U-wave in leads II, III, aVF.  Whether a T-wave or a U-wave, the interval (QT or QU) is very ...
Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
More News: Alcoholism | Chloride | Electrocardiogram | Materials Science | Nanotechnology | Study