Journal ArticleDOI
Carbonized silk fabric-based flexible organic electrochemical transistors for highly sensitive and selective dopamine detection
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TLDR
In this article, Nafion and reduced graphene oxide-wrapped carbonized silk fabric (Nafion/rGO/CSF) were fabricated into a precious metal-free gate electrode for organic electrochemical transistor (OECT) sensors.Abstract:
In this work, Nafion and reduced graphene oxide-wrapped carbonized silk fabric (Nafion/rGO/CSF) were fabricated into a precious metal-free gate electrode for organic electrochemical transistor (OECT) sensors. The hierarchical structure of CSF can effectively increase the conductivity of the electrode and avoid the aggregation of rGO and Nafion, giving the Nafion/rGO/CSF-based OECT sensors excellent detection capability towards dopamine (DA) with an ultralow detection limit of 1 nM, a broad detection range from 1 nM – 30 μM and a high selectivity. Moreover, the outstanding electrochemical sensing behaviors of the Nafion/rGO/CSF-based OECT sensor are retainable under bent states and in artificial urine, which will greatly facilitate its application in flexible electronics. The abovemenitoned results indicate that OECT sensors with carbon-based gate electrodes can also obtain high sensitivity comparable to that of precious metal gate electrodes, which, therefore, provides an unprecedented strategy for manufacturing flexible OECT sensors with high performance and low cost.read more
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Journal ArticleDOI
Rational Confinement of Yttrium Vanadate within Three-Dimensional Graphene Aerogel: Electrochemical Analysis of Monoamine Neurotransmitter (Dopamine).
Thangavelu Kokulnathan,Faheem Ahmed,Shen-Ming Chen,Tse-Wei Chen,Tse-Wei Chen,P.M.Z. Hasan,Anwar L. Bilgrami,Reem Darwesh +7 more
TL;DR: In this paper, the authors reported yttrium vanadate within three-dimensional graphene aerogel (YVO/GA) as a novel electrocatalyst for detecting dopamine (DA).
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Two-Dimensional Field-Effect Transistor Sensors: The Road toward Commercialization.
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Journal ArticleDOI
Non-invasive wearable chemical sensors in real-life applications
Nadtinan Promphet,Sarute Ummartyotin,Wittaya Ngeontae,Pumidech Puthongkham,Nadnudda Rodthongkum +4 more
TL;DR: The substrate materials used for sensor fabrication, sample collection and handling, and analytical detection techniques that are utilized to detect biomarkers in different biofluids are described.
Journal ArticleDOI
Electrochemical detection of dopamine with negligible interference from ascorbic and uric acid by means of reduced graphene oxide and metals-NPs based electrodes
Bernardo Patella,Alessia Sortino,Francesca Mazzara,Giuseppe Aiello,Giuseppe Drago,Claudia Torino,Antonio Vilasi,Alan O'Riordan,Rosalinda Inguanta +8 more
TL;DR: In this paper, the authors presented electrochemical dopamine sensors based on reduced graphene oxide coupled with Au or Pt nanoparticles for real-time screening of dopamine in biological fluids, i.e., blood and urine.
Journal ArticleDOI
Rapid prototyping of 3D Organic Electrochemical Transistors by composite photocurable resin.
Valentina Bertana,Giorgio Scordo,Matteo Parmeggiani,Matteo Parmeggiani,Luciano Scaltrito,Sergio Ferrero,Manuel Gomez Gomez,Matteo Cocuzza,Davide Vurro,Pasquale D'Angelo,Salvatore Iannotta,Candido Pirri,Candido Pirri,Simone Luigi Marasso +13 more
TL;DR: A new approach to obtain RP of complex devices, namely Organic Electro-Chemical Transistors (OECTs) by SL technique exploiting a resin composite based on the conductive poly(3,4-ethylenedioxythiophene):polystyrene sulfonate and the photo curable Poly(ethylene glycol) diacrylate (PEGDA).
References
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Recent advances in graphene-based biosensors
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