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Osteoid Osteoma of Proximal Phalanx of the Index Finger of the Right Hand

Open Journal of Medical Imaging 2011年第2期1卷 50-52页

作者： seyed abdolhossein mehdi nasab Mohammad Pipelzadeh Department of Orthopedic Surgery Imam Khomeini Hospital Jundishapur University of Medical Sciences Clinical Research Center Jundishapur University of Medical Sciences

Osteoid osteoma is a benign bone forming tumor of the growing skeleton that is most often seen in young men. It represents by pain and radiologic appearance of anidus surrounded by osteosclerosisthat occurs mostly in long bones of the lower extremity. Occurrence of this tumor in the hand is an uncommon condition. We present a 23-year-old man with an osteoid osteoma in the proximal phalanx of the right index finger. The radiological examination showed a lytic lesion with irregular border with a central sclerotic nidus and also sclerotic changes around the lytic lesion and bone expansion in the proximal phalanx of the right index finger. He was suffering from a history of pain and swelling of his finger since 8 months. The pain disappeared after surgical excision of nidus. The patient was pain-free and there was no evidence of recurrence at 15 months follow up.

关键词： Osteoid Osteoma Phalanx Hand

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A QUICK AND GREEN IONIC LIQUID-MEDIATED APPROACH FOR THE SYNTHESIS OF HIGH-PERFORMANCE, ORGANOSOLUBLE AND THERMALLY STABLE POLYIMIDES

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Chinese Journal of Polymer Science 2013年第4期31卷 679-690页

作者： mehdi Taghavi Mousa Ghaemy Marjan Hassanzadeh seyed Mojtaba Amini nasab Polymer Chemistry Research Laboratory Department of ChemistryUniversity of MazandaranBabolsar 47416-95447Iran

Three diamine monomers with different derivatives of imidazole heterocyclic ring and meta-linked aryl ethers were synthesized and used in polycodensation reaction with various commercial dianhydrides for preparation of a series of novel poly（ether-imide）（PEI）s. The polycodensation reactions were carried out by using conventional method and in a green medium of ionic liquid （IL） without using NMP-pyridine-acetic anhydride. The PEIs were obtained in good yields （80%-96%） with moderate viscosity （0.48-0.66 dL/g） in a shorter reaction time （10 h） in IL as compared with the conventional method （36 h）. All of the polymers were amorphous in nature, showed excellent solubility in amide-type polar aprotic solvents with ability to form tough and flexible films, and excellent thermal stability with Tgs in the range of 212-340℃ and 10% weight loss temperature （T10） up to 570℃ in N2 and 528 ℃ in air.

关键词： Ionic liquids Poly(ether-imide) Polycodensation Green media Thermal properties.

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Effect of Gd3+-,Pr3+-or Sm3+-substituted cobalt-zinc ferrite on photodegradation of methyl orange and cytotoxicity tests

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Journal of Rare Earths 2019年第12期37卷 1288-1295页

作者： seyed Mahdi Peymani-Motlagh Nadia Moeinian Mojtaba Rostami Mahdi Fasihi-Ramandi Ali Sobhani-nasab mehdi Rahimi-Nasrabadi Mohammad Eghbali-Arani Mohammad Reza Ganjali Teofil Jesionowski Hermann Ehrlich Mohammad Ali Karimi Narges Ajami Department of Chemistry Imam Hossein UniversityTehran 16765-3454Iran Department of Chemistry Payame Noor UniversityTehran 19395-4697Iran Young Researchers and Elite Club Karaj BranchIslamic Azad UniversityKaraj ***Iran Molecular Biology Research Center Systems Biology and Poisoning InstituteBaqiyatallah University of Medical SciencesTehran ***Iran Social Determinants of Health(SDH)Research Center Kashan University of Medical SciencesKashan ***Iran Core Research Lab Kashan University of Medical SciencesKashan ***Iran Faculty of Pharmacy Baqiyatallah University of Medical SciencesTehran 195163759Iran Department of Physics University of KashanKashan ***Iran Center of Excellence in Electrochemistry Faculty of ChemistryUniversity of TehranTehran ***Iran Institute of Chemical Technology and Engineering Faculty of Chemical TechnologyPoznan University of TechnologyPoznan 60965Poland Institute of Electronic and Sensor Materials TU Bergakademie FreibergFreiberg 09599Germany

Gd3+-,Pr3+-or Sm3+-doped Co-Zn(Co0.5Zn0.5Fe2 O4)magnetic ferrites(i.e.,Co0.5Zn0.5Gd0.1Fe1.9O4,Co0.5Zn0.5Pr0.1Fe1.9O4 and Co0.5Zn0.5Sm0.1Fe1.9O4)were prepared using a facile sol-gel approach,and the structure,surface morphology and chemical composition of the products were studied by means of scanning electron microscopy(SEM),energy dispersive X-ray analysis(EDX),X-ray diffraction(XRD),UVvisible diffuse reflectance spectroscopy(DRS),photoluminescence(PL)spectroscopy,Fourier transform infrared spectroscopy(FT-IR)and vibrating sample magnetometer(VSM)*** patterns show the Co-Zn product is composed of cubic spinel phases with few impurities or secondary phases,and the average crystallite sizes of the samples are determined to be approximately^51—80,~99—181,~68—103 and^83—133 *** the coercivity and remnant and saturation magnetizations,evaluated by vibrating sample magnetometer(VSM),are found to increase linearly with the incorporation of Gd3+,Pr3+and Sm3+in the product *** CO1-xZnxFe2-yRyO4 photocatalyst sample is found to display a red shift in its absorption,and exhibits outstanding photocatalytic effects in the degradation of MO under ultraviolet(UV)*** is attributed to the reduction of the band gap of cobalt-zinc ferrite due to the presence of rare earth *** in vitro evaluations of the cytotoxic effects of the synthesized nanoparticles were performed on a HeLa cell line.

关键词： Magnetic ferrite Rare earth ions Photocatalyst Cytotoxicity Sol-gel

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