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RISS 인기검색어
- 검색키워드
- 저자 : Mehdi Shabani‑Nooshabadi (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Hamed Shahinfard,Mehdi Shabani‑Nooshabadi,Adel Reisi‑Vanani,Rozhin Darabi 한국탄소학회 2023 Carbon Letters Vol.33 No.5
In the present investigation, a new electrochemical sensor based on carbon paste electrode was applied to simultaneous determine the tramadol, olanzapine and acetaminophen for the first time. The CuO/reduced graphene nanoribbons (rGNR) nanocomposites and 1-ethyl 3-methyl imidazolinium chloride as ionic liquid (IL) were employed as modifiers. The electrooxidation of these drugs at the surface of the modified electrode was evaluated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS) and chronoamperometry. Various techniques such as scanning electron microscopy (SEM) with energy dispersive X-Ray analysis (EDX), X-ray diffraction (XRD) and fourier-transform infrared spectroscopy (FTIR), were used to validate the structure of CuO-rGNR nanocomposites. This sensor displayed a superb electro catalytic oxidation activity and good sensitivity. Under optimized conditions, the results showed the linear in the concentration range of 0.08–900 μM and detection limit (LOD) was achieved to be 0.05 μM. The suggested technique was effectively used to the determination of tramadol in pharmaceuticals and human serum samples. For the first time, the present study demonstrated the synthesis and utilization of the porous nanocomposites to make a unique and sensitive electrode and ionic liquid for electrode modification to co-measurement of these drugs.
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Jafari-Kashi Abbas,Shabani-Nooshabadi Mehdi,Rafiee-Pour Hossain-Ali 한국탄소학회 2024 Carbon Letters Vol.34 No.3
Bortezomib (BTZ) and dasatinib (DA) are two substantial anti-cancer agents with side effects on the human body. In this research, we fabricated a novel electrochemical sensor modified by CuFe2O4/SmVO4 nanocomposite and 1-ethyl-3-methylimidazolium chloride (1E3MC) as an ionic liquid (IL) (CuFe2O4/SmVO4/IL/CPE) for coinciding investigation of BTZ and DA for the first time. The CuFe2O4/SmVO4 synthesized were determined and certified through field-emission scanning electron microscopy (FE-SEM), energy diffraction X-ray (EDX), and X-ray diffraction (XRD). The capability of the sensor was investigated by different electrochemical techniques such as cyclic voltammetry (CV), chronoamperometry (CHA), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The attained data showed that the oxidation signal of bortezomib and dasatinib promoted as an innovative electrochemical sensor. After optimization of the conditions using this sensor at pH 7.0, the oxidation signal of bortezomib and dasatinib showed to be linear with drug concentrations in the range of 0.09–90 µM and 100–500 µM with a detection limit of 5.4 nM and 7.0 µM, respectively, using differential pulse voltammetry method. The values of D and electro-transfer coefficient (α) achieved 2.5 × 10−5 cm2 s−1 and 0.99, respectively. The proposed electrochemical sensor exhibited acceptable selectivity and sensitivity for simultaneous detection of bortezomib and dasatinib in pharmaceutical and biological samples.
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