عنوان المقالة:One-step production of pyrene-1-boronic acid functionalized graphene for dopamine detection One-step production of pyrene-1-boronic acid functionalized graphene for dopamine detection
جمعه عبدالجواد محمد على | Gomaa A. M. Ali | 20265
نوع النشر
مجلة علمية
المؤلفون بالعربي
Ellie Yi LihTeo, Gomaa A.M.Ali, H.Algarni, Wilairat Cheewasedtham, Thitima Rujiralai, Kwok Feng Chong
المؤلفون بالإنجليزي
Ellie Yi LihTeo, Gomaa A.M.Ali, H.Algarni, Wilairat Cheewasedtham, Thitima Rujiralai, Kwok Feng Chong
الملخص العربي
A facile molecular wedging method is used to exfoliate graphite flakes into graphene sheets, with concurrent functionalization to form pyrene-1-boronic acid functionalized graphene (PBA/G). Different techniques are used to characterize the prepared materials such as field emission scanning electron microscope, energy dispersive X-ray analyzer, Raman, Fourier transformed infrared spectroscopy and fluorescence spectroscopy to evaluate their structural and morphological characteristics. The intercalation of PBA into graphite sheets, followed by exfoliation can be observed under the electron microscope. Elemental analyses show that the PBA acts more than intercalant, it is functionalized onto the graphene sheets upon exfoliation to form PBA/G. Raman analysis indicates PBA/G has a lower number of graphene layers as a result of successful exfoliation by PBA. Electrochemical impedance studies show that the PBA/G possesses high affinity for dopamine through the diol groups interaction, which renders it to have enhanced detection for dopamine.
الملخص الانجليزي
A facile molecular wedging method is used to exfoliate graphite flakes into graphene sheets, with concurrent functionalization to form pyrene-1-boronic acid functionalized graphene (PBA/G). Different techniques are used to characterize the prepared materials such as field emission scanning electron microscope, energy dispersive X-ray analyzer, Raman, Fourier transformed infrared spectroscopy and fluorescence spectroscopy to evaluate their structural and morphological characteristics. The intercalation of PBA into graphite sheets, followed by exfoliation can be observed under the electron microscope. Elemental analyses show that the PBA acts more than intercalant, it is functionalized onto the graphene sheets upon exfoliation to form PBA/G. Raman analysis indicates PBA/G has a lower number of graphene layers as a result of successful exfoliation by PBA. Electrochemical impedance studies show that the PBA/G possesses high affinity for dopamine through the diol groups interaction, which renders it to have enhanced detection for dopamine.
تاريخ النشر
01/06/2019
الناشر
Materials Chemistry and Physics
رقم المجلد
231
رقم العدد
الصفحات
286-291
رابط خارجي
https://www.sciencedirect.com/science/article/pii/S0254058419303256
الكلمات المفتاحية
Functionalized grapheneSensorDopaminePyrene-1-boronic acidElectrochemical impedance
رجوع