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      • KCI등재

        Surface functionalization of phosphazenenanosphere derivatives by Schiff-base-assisted metal complexes through a Si-spacer

        Abbas Tarassoli,Tahereh Sedaghat,Zeinab Ansari-Asl 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.4

        Surface functionalization of organometallic derivatives of phosphazenenanosphere (PNS) by the metal-coordinated Schiff base through (3-chloropropyl)trimethoxysilane as a silicon linker and spacer was investigated. The PNS’s derivative of 4,40-sulfonyldiphenol (BPS) was added to Si–H2 saldien under ultrasonic irradiation. Metal ion (Mn2+, Ni2+or Zn2+) was loaded on the PNS–Si–H2 saldien as desired metal salt. The structure and morphology was characterized by means of FT-IR, TGA, SEM, EDX and X-ray diffraction. The average diameters of nanosphere compounds are in the range of 250–300 nm.

      • SCOPUSKCI등재

        Synthesis and Characterization of a Novel Organotin Complex: Di(n-butyl) chloro[5-(p-dimethylaminobenzylidene)rhodanine]tin(IV) Based on a Competing N, O, and S Donor Ligand

        Tarassoli, Abbas,Sedaghat, Tahereh,Mousavi, Fatemeh Korean Chemical Society 2011 대한화학회지 Vol.55 No.4

        새로운 유기주석(IV) 착물을 $Bu_2SnCl_2$과 N, O 및 S 주개 리간드인 5-(p-dimethylaminobenzylidene)rodanine(HL)로 부터 제조하였다. 염기 존재 하에 리간드는 탈양성자화되며, SnBuCl2L의 분자식을 갖는 착물이 형성되었다. 이 착물은 IR, $^1H$ NMR, $^{119}Sn$ NMR 및 원소분석을 통하여 전반적으로 특성을 분석하였다. 분광학적인 데이터로부터 리간드는 산소원자를 통하여 주석에 배위됨을 알았으며, 배위수가 4임을 용액에서 $^{119}Sn$ NMR 데이터에 의해 결정하였다. A novel organotin(IV) complex has been prepared from $Bu_2SnCl_2$ and the N, O and S donor ligand, 5-(p-dimethylaminobenzylidene) rodanine (HL). The ligand is deprotonated in the presence of a base and the complex with the general formula $SnBuCl_2L$ is formed. This complex was fully characterized by IR, $^1H$ NMR and $^{119}Sn$ NMR and elemental analysis. Spectroscopic data indicate the ligand is coordinated through the oxygen atom to the tin and the coordination number of four is supported by $^{119}Sn$ NMR data in solution.

      • KCI등재

        Curcumin-loaded Fe-MOF/PDMS porous scaffold: Fabrication, characterization, and biocompatibility assessment

        Soghra Nikpour,Zeinab Ansari-Asl,Tahereh Sedaghat,Elham Hoveizi 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.110 No.-

        Fabrication of biocompatible scaffolds that can facilitate the mending of damaged tissue has attractedmuch attention. In this study, the preparation and structural investigation of a curcumin-loaded Fe(II)metal–organic framework/polydimethylsiloxane sponge, Cur/Fe-MOF/PDMS, are reported. Various techniquessuch as FTIR (Fourier-transform infrared), XRD (X-ray diffraction), SEM (scanning electron microscope),TEM (transmission electron microscope), EDS (energy-dispersive X-ray spectroscopy) mapping,and XPS (X-ray photoelectron spectroscopy) have been used to investigate the as-fabricated materials. Results confirm the successful incorporation of curcumin and Fe-MOF into the PDMS matrix. Theobtained SEM images indicate the sponge-like structures of the PDMS and the Fe-MOF/PDMS composite. Indeed, the results from in vivo show animals all to be survived without any unusual responses to thetransplant. According to macroscopic observation, the Fe-MOF/PDMS and Cur/Fe-MOF/PDMS scaffoldsseem better confederates than the pure PDMS. H&E staining has confirmed enhanced healing and revascularizationin the Cur/Fe-MOF/PDMS than the PDMS and Fe-MOF/PDMS scaffolds. Additionally, a twostageprofile was observed for the release of curcumin into PBS (phosphate-buffered saline) solution. The hydrophilic property of the Fe-MOF resulted in fast release at the first stage. These results exhibit thatthe Cur/Fe-MOF/PDMS sponge can serve as a 3D porous substrate in the tissue engineering (TE) field.

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