Výsledky vyhledávání - "Ashkan Shomali"

Preparation, biodistribution and dosimetry study of Tc-99m labeled N-doped graphene quantum dot nanoparticles as a multimodular radiolabeling agent

Autor: Ashraf Fakhari, Tahereh Firuzyar, Farzaneh Azimi, Esmaeil Gharepapagh, Ashkan Shomali

Publikováno v: New Journal of Chemistry. 45:3909-3919

A new Tc-99m N-doped graphene quantum dot 99mTc-(N-GQD) moiety was developed as a radiolabeling agent for molecules lacking chelation or water solubility of ligands simultaneously. (N-GQDs) were synthesized and characterized with high purity (size ra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd9743770c8908ff893ba428363d1408
https://doi.org/10.1039/d0nj04762g

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Boron/Nitrogen Co-doped carbon quantum dots as a high sensitive and selective fluorescent sensor for PO43- detection

Autor: Hassan Valizadeh, Azadeh Ostad Chinigar, Ashkan Shomali

Publikováno v: Organic Communications, Vol 13, Iss 1, Pp 9-18 (2020)

Boron/Nitrogen doped carbon quantum dots (BNCQD) was synthesized and its physiochemical and optical properties were investigated by FT-IR, XRD, XPS, TEM and spectroscopic methods. The freshly prepared BNCQD shows a strong green fluorescence at 400 nm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::088ce08e914bb82f82ac5fe1a61d711f
https://doi.org/10.25135/acg.oc.76.20.01.1530

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Preparation and capacitance properties of graphene quantum Dot/NiFe−layered double-hydroxide nanocomposite

Autor: Ferdi Karadas, Emine Ülker, Ashkan Shomali, Zolfaghar Rezvani, Sara Samuei

Publikováno v: European Journal of Inorganic Chemistry

A new composite from graphene quantum dots (GQDs) and NiFe layered double hydroxide was successfully prepared by the coprecipitation method under optimal conditions. The nanoparticles of the composite were analyzed by X‐ray diffraction (PXRD), Four

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd6403e300c3c6bd18dd94db1d1a9ac2
https://hdl.handle.net/11693/77209

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Efficient Synthesis of Î±-Oximinoketones using Carboxyl and Nitrite Functionalized Graphene Quantum Dots: Dual role of Nanostructure as a Catalyst and Reagent

Autor: Ashkan Shomali, Hassan Valizadeh

Publikováno v: JOURNAL OF ADVANCES IN CHEMISTRY. 12:4089-4096

Carboxyl and nitrite functionalized graphene quantum dots (CNGQDs) was used for the efficient synthesis of Î±-oximinoketones under free mineral acid conditions at room temperature. CNGQDs was prepared via o-nitrozation of carboxyl and hydroxyl grap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a647daeb8b76b30679a3031268fd840
https://doi.org/10.24297/jac.v12i6.6098

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Synthesis and characterization of graphene quantum dots/CoNiAl-layered double-hydroxide nanocomposite: Application as a glucose sensor

Autor: Sara Samuei, Ashkan Shomali, Jila Fakkar, Biuck Habibi, Zolfaghar Rezvani

Publikováno v: Analytical Biochemistry. 521:31-39

In the present work, a novel nanocomposite based on the graphene quantum dots and CoNiAl-layered double-hydroxide was successfully synthesized by co-precipitation method. To achieve the morphological, structural and compositional information, the res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f8c59ea07bee4ecfe4deed614919c8
https://doi.org/10.1016/j.ab.2017.01.005

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Star-like polyionic heterogeneous nanocatalyst as a highly active catalyst for promotion of Baylis–Hillman reaction in [bmim]Cl

Autor: Saeideh Noorshargh, Ashkan Shomali, Hassan Valizadeh

Publikováno v: Journal of the Iranian Chemical Society. 12:2169-2177

The use of star-like polyionic Lewis base heterogeneous nanocatalyst for the Baylis–Hillman reaction of benzyl- and methylacrylates with aryl aldehydes has been investigated. The corresponding Baylis–Hillman adducts are obtained in good to high y

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::618c3f4536b629f67d842aac932c7d20
https://doi.org/10.1007/s13738-015-0694-9

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Synthesis of a nitrite functionalized star-like poly ionic compound as a highly efficient nitrosonium source and catalyst for the diazotization of anilines and subsequent facile synthesis of azo dyes under solvent-free conditions

Autor: Hassan Valizadeh, Jalal Ghorbani, Ashkan Shomali, Saeideh Noorshargh

Publikováno v: Dyes and Pigments. 117:64-71

Nitrite functionalized star-like poly ionic (NFSPI) compound was synthesized and used as a highly efficient nitrosonium source and catalyst for the conversion of aniline derivatives to diazonium salts. Azo dyes were prepared via in situ azo-coupling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84fb33093a6770d4c0f2efa341bcd22f
https://doi.org/10.1016/j.dyepig.2015.02.007

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Carboxyl and nitrite functionalized graphene quantum dots as a highly active reagent and catalyst for rapid diazotization reaction and synthesis of azo-dyes under solvent-free conditions

Autor: Ashkan Shomali, Hassan Valizadeh, Saideh Nourshargh, Rahim Mohammad-Rezaei

Publikováno v: Dyes and Pigments. 113:522-528

Carboxyl and nitrite functionalized graphene quantum dots was prepared from carboxyl and hydroxyl functionalized graphene quantum dots using NaNO2 in the absence of mineral acids. This functional group conversion was confirmed by FT-IR spectroscopy,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8f1b2b3a91ed4b2b3000a24b9a253fe
https://doi.org/10.1016/j.dyepig.2014.09.023

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Efficient synthesis of xanthene derivatives using carboxyl functionalized graphene quantum dots as an acidic nano-catalyst under microwave irradiation

Autor: Hassan Valizadeh, Ashkan Shomali, Alireza Banan, Rahim Mohammad-Rezaei

Publikováno v: RSC Advances. 5:88202-88208

Carboxyl functionalized graphene quantum dots (CGQDs) were applied as a highly efficient and green acidic catalyst for the coupling reaction of 2-naphthole and benzaldehyde derivatives for the preparation of 14H-dibenzo xanthene derivatives, under so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::67a0fa47c680936e5c482b4542cb7bfc
https://doi.org/10.1039/c5ra19645k

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