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Core needle biopsy for thyroid nodules assessment-a new horizon?

World Journal of Clinical Oncology 2024年第5期15卷 580-586页

作者： David D Dolidze Serghei Covantsev g.ig.rii m chechenin Natalia V Pichugina Anastasia V Bedina Anna Bumbu Department of Clinical Research and Development Botkin HospitalMoscow 125284Russia Department of Surgery Russian Medical Academy of Continuous Professional EducationMoscow 125445Russia Emergency Surgery No.76 Botkin HospitalMoscow 125284Russia Department of Surgery Botkin HospitalMoscow 125284Russia Department of medical Ultrasonography Botkin HospitalMoscow 125284Russia medicine Moscow State Medical University I.M.SechenovMoscow 119048Russia Department of Oncology Botkin HospitalMoscow 125284Russia

Ultrasound-guided fine-needle aspiration is the standard for evaluating thyroid nodules with a high safety profile and a relatively low number of non-diagnostic cytological ***,this diagnostic method traditionally has its weak *** diagnostic categories such as BethesdaⅠ,ⅢandⅣare not reliable for thyroid carcinoma risk *** advancements in a core needle biopsy made it possible to use this tool as a new method for thyroid nodules *** main feature of this method is the use of thin needles(18-21g)and guns with an automatic trigger *** histological material collected with the use of a core needle biopsy is usually superior to ***,the core needle biopsy can be used as a complementary technique to a standard fine needle aspiration in difficult and dubious cases of thyroid neoplasia with uncertain malignant potential.

关键词： Core-needle biopsy Thyroid Follicular tumor Fine-needle aspiration Thyroid cancer

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Characterization of functionalized multiwalled carbon nanotubes and application as an effective filter for heavy metal removal from aqueous solutions

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Chinese Journal of Chemical Engineering 2016年第12期24卷 1695-1702页

作者： Emad.m.Elsehly N.g.chechenin A.V.makunin H.A.motaweh E.A.Vorobyeva K.A.Bukunov E.g.Leksina A.B.Priselkova Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Faculty of Science Damanhour University Faculty of Physics Lomonosov Moscow State University

Filtration efficiency of Ni(II) from aqueous solution using pristine and modified mWCNTs filters was investigated as a function of Ni(II) ion concentration, p H, and filter mass. mWCNTs were synthesized by CVD method and modified using two complementary treatments, purification(using a mixture of hydrochloric acid and hydrogen peroxide) and functionalization(using nitric acid). The effect and mechanism of each treatment on the structural integrity of pristine mWCNTs has been studied. morphology of the pristine and modified filters was investigated by Raman Spectrometry(RS), Scanning Electron microscopy(SEm), Energy Dispersive X-ray Spectroscopy(EDS),Fourier Transform Infrared(FTIR) spectrometry and Thermogravimetric analysis. It was found from Raman spectra that the ratio of the intensity of D-band to that of g-band decreased by purification process, and increased by functionalization process. The adsorption mechanism of Ni(II) onto the surface functional groups of modified mWCNTs was confirmed by FTIR spectrum. The filtration results showed that the removal efficiency of Ni(II) is strongly dependent on pH and could reach 85% at pH = 8. Also, modified mWCNT filters can be reused through many cycles of regeneration with high performance. Functionalized mWCNTs filters may be a promising adsorbent candidate for heavy metal removal from wastewater.

关键词： mWCNTs filters Functionalization Nickel removal Filtration Raman spectrometry Purification

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