Self-seeding synthesis of silver nanosheets with binary reduction in poly(vinylpyrrolidone)–sodium dodecyl sulphate aggregation microreactor

Micro & nano letters

article

Ye Fan¹  Yueping Ren¹  Yun Fang¹  Menjie Wu¹ 

[1] The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University;School of Environmental and Civil Engineering, Jiangnan University

关键词: silver;    nanofabrication;    sheet materials;    reduction (chemical);    polymer blends;    aggregation;    surface morphology;    nanoparticles;    pH;    crystal growth;    particle size;    self-seeding synthesis;    silver nanosheets;    binary reduction;    poly(vinylpyrrolidone)-sodium dodecyl sulfate aggregation microreactor;    morphology;    Ag nanoparticles;    pH dependence concentration;    synthesis template;    Ag seed formation;    slow crystal growth;    PVP concentration;    SDS concentration;    NaBH4 concentration;    free PVP monomers;    particle size;    critical aggregation concentration;    2D planar Ag nanostructures;    stable complex ionisation state;    Ag;   

DOI  :  10.1049/mnl.2014.0076

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

A 27-year-old woman presented with dominant symptoms including chronic migraine, dizziness and nausea with suspected intracranial hypertension (ICH). The patient also had a purpuric (cyanotic) facial discoloration, suggestive of compromised cerebral perfusion. However, her lumbar puncture opening pressure (LPOP) was borderline high, with 20 cm H2O. There was no evidence of partially empty sella turcica nor obliteration of the cerebral cisterns upon MRI. She was initially diagnosed with chronic migraines by her neurologist. However, closer inspection revealed posterior scleral flattening, flattened pons, and most importantly stenosis of the internal jugular veins (IJV) between the C1 transverse processes and styloid processes, due to anterior subluxation of the atlanto-occipital facets. Doppler waveforms of the internal carotid arteries were abnormal and suggestive of ICH, with a significantly delayed systolic upstroke but with normal speeds. Manual compression of the IJVs reproduced her symptoms within 7 sec. Occult biomechanical ICH may have severe and long-lasting consequences for the patient and thus its detection, and distinguishing from the “common migraine” is necessary, so that the patient may receive proper treatment.

【 授权许可】

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