کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5450434 1398503 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In-situ secondary growth of nanocube-based Prussian-blue film as an ultrasensitive biosensor
ترجمه فارسی عنوان
در مرحله رشد ثانویه فیلم پروس-آبی مبتنی بر نانوذرات به عنوان یک حسگر بی حس کننده فوق حساس
کلمات کلیدی
رشد ثانویه در داخل، فیلم آبی پروس، نانوساختار منظم، الکتروشیمی، بیوسنسورها،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
A regular nanostructure has been widely confirmed to result ina marked improvement in material performance in biosensing applications. In the present study, a regular nanostructured Prussian blue (PB) film with two heterogeneous crystal layers was synthesized in-situ using a secondary growth method. A PB seed layer was first controlled to form uniform cube-like crystal nuclei through an ultrasonic reaction with a single reactant. Then, well-defined 100 nm PB nanocubes were further crystallized on this seed layer using a self-assembly approach. In order to accelerate the electron transfer rate during the enzyme reaction for glucose detection, the graphene was used as the main cross-linker to immobilize glucose oxidase on the PB film. The as-prepared biosensor exhibited high electrocatalysis and electron conductivity for the detection of trace glucose with a sensitivity of 141.5 μA mM−1 cm−2, as well as excellent anti-interference ability in the presence of ascorbic acid and uric acid under a low operation potential of −0.05 V.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 27, Issue 3, June 2017, Pages 297-302
نویسندگان
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