Preparation and characterisation of rutile titanium dioxide of special hollow microspheres

Micro & nano letters

article

Lin Liu¹  Dan Peng¹  Quanliang Ma¹  Zhigang Jiang²  Jianwei Wang²  Jianhua Qian¹ 

[1] Provincial Key Laboratory for Functional Compounds Synthesis and Application, Bohai University;Ltd.

关键词: titanium compounds;    powders;    materials preparation;    Fourier transform infrared spectra;    X-ray diffraction;    scanning electron microscopy;    transmission electron microscopy;    rutile titanium dioxide hollow microspheres;    hydrothermal methods;    tetrabutyl titanate;    β-cyclodextrin;    TiO2;    specific surface area;    orientation rule;    smooth rule;    uniform rule;    nanorods;    titania powders;    product colour;    TEM;    transmission electron microscope;    SEM;    scanning electron microscopy;    XRD;    X-ray diffraction;    FT-IR;    Fourier transform infrared spectroscopy;    powder structure;    titania morphology formation;    temperature effect;    hydrochloric acid concentration effect;    auxiliary agent;    polyvinylpyrrolidone;    template agent;   

DOI  :  10.1049/mnl.2015.0108

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

A 42 year, 62 kg, ASA I, male patient was scheduled to undergo endoscopic resection of a nonfunctional pituitary macroadenoma. The patient did not have any cardiorespiratory abnormality and the routine hematological investigations and the hormonal profile were within normal limits. Invasive arterial blood pressure (IBP) was 136/81 mmHg and heart rate (HR) 86/min. General anesthesia (GA) was induced with fentanyl (125 mcg) and propofol (120 mg) trachea was intubated with 70 mg rocuronium. We maintained GA with sevoflurane and O2: N2O (40:60). Ten minutes after intubation, nasal mucosa was infiltrated with lignocaine 2% with epinephrine 1:200,000 and the nasal cavity was packed with epinephrine (1:200,000) soaked gauge. Few minutes after nasal packing, an increase in IBP to 220/110 and HR to 146 bpm was observed.  We administered labetalol (10+10 mg boluses) causing reduction of IBP to 140/90 but the HR dropped to 30/min. The resultant bradycardia responded to inj atropine 0.6 mg IV.

【 授权许可】

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