Modulation of electronic conductivity and bandgap of electrochemically polymerised polycarbazole films using montmorillonite, multi-walled carbon nanotube and reduced graphene oxide as nanofillers

Micro & nano letters

article

Aditi Srivastava¹  P. Chakrabarti¹ 

[1] The National Academy of Sciences;Department of Electronics Engineering, Indian Institute of Technology (BHU)

关键词: polymerisation;    nanocomposites;    filled polymers;    polymer films;    graphene;    Schottky diodes;    nanofabrication;    electrical conductivity;    surface morphology;    multi-wall carbon nanotubes;    organic semiconductors;    energy gap;    electrochemistry;    C-CO;    nanoclay;    montmorillonite;    semiconducting polymer;    morphological properties;    reduced graphene oxide;    nanofillers;    Schottky diodes;    nanocomposite films;    multiwalled carbon nanotube;    electrochemically polymerised polycarbazole films;    electronic conductivity;    bandgap;    indium tin oxide coated glass substrate;   

DOI  :  10.1049/mnl.2018.0139

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Atrial fibrillation is associates with elevated risk of stroke. The simplest stroke risk assessment schemes are CHADS2 and CHA2DS2-VASc score. Aspirin and oral anticoagulants are recommended for stroke prevention in such patients. The aim of this study was to  assess status of CHADS2 and CHA2DS2-VASc scores in Iraqi atrial fibrillation patients and to report current status of stroke prevention in these patients with either warfarin or aspirin in relation to these scores. This prospective cross-sectional study was carried out at Tikrit, Samarra, Sharqat, Baquba, and AL-Numaan hospitals from July 2017 to October 2017. CHADS2 and CHA2DS2-VASc scores were manually calculated. One hundred patients were participated, 48 were men and 52 were women. Their mean age was 62.56 ± 14.36 years. Permanent type of atrial fibrillation, palpitation, and hypertension were the most diagnosed type, symptom and comorbidity recorded in this study respectively. Average scores of CHADS2 and CHA2DS2-VASc were 2.34 ± 1.39 and 4.1 ± 2.05, respectively. These scores were not calculated for these patients in hospital setting. Aspirin and warfarin were prescribed regardless to these scores. The result of this study indicated that CHADS2 and CHA2DS2-VASc scores were often neglected in hospitals; and aspirin is still widely used as a strategy to minimize the risk of stroke.

【 授权许可】

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