A Nanostructured Bifunctional platform for Sensing of Glucose Biomarker in Artificial Saliva: Synergy in hybrid Pt/Au surfaces

Raymundo‐Pereira, Paulo A.; Shimizu, Flávio M.; Coelho, Dyovani; Piazzeta, Maria H.O.; Gobbi, Ângelo L.; Machado, Sérgio Antônio Spínola; Oliveira, Osvaldo N.

doi:10.1016/j.bios.2016.06.053

Cited by 71 publications

(35 citation statements)

References 68 publications

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“…The patterning of Pt substrates with photolithographic and li-off processes reported in our previous reports. 19,36,37 The substrates were then heated to 80 C for 10 min to evaporate the solvent, followed by calcinations at 350 C for 2 h in an electric furnace in air to stabilize the sample before the gas sensing measurements were performed. The electrical contact and sensor lm illustration mentioned in Fig.…”

Section: Fabrication Of Nico 2 O 4 Sensing Lm and Gas-sensing Measurmentioning

confidence: 99%

One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures

et al. 2016

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International audienceNanostructured semiconducting oxides have been used as resistive gas sensors of toxic and non-toxic gases, but little emphasis has been placed on ozone sensing. Here we present a new ozone gas sensor based on hierarchical NiCo2O4 cubic structures synthesized via a facile urea-assisted co-precipitation method and annealed at 450 degrees C, which showed a low detection level. Ozone detection was carried out through electrical measurements with an optimized performance at 200 degrees C, with fast response (similar to 32 s) and recovery (similar to 60 s) time with suitable concentration range (from 28 to 165 ppb) for technological applications. Furthermore, NiCO2O4 platelets are selective to ozone compared to other oxidizing and reducing gases. The low detection level can be attributed to the coexistence of 3D structures based on hexagonal platelet-like and porous flower-like shape, which were revealed by field emission scanning electron microscopy (FE-SEM). In summary, NiCo2O4 is promising for detection of sub-ppb levels of ozone gas

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Section: Fabrication Of Nico 2 O 4 Sensing Lm and Gas-sensing Measurmentioning

confidence: 99%

One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures

et al. 2016

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“…Noble metal nanoparticles, including gold and silver nanoparticles, are currently of great interest for their distinctive plasmonic properties and extensive research attention in near-field related applications, such as surface-enhanced spectroscopy [1,2], biomedicine [3,4], photonics [5,6], and biosensing [7,8]. Recently, metal nanoparticle-based catalysis has become an increasing area of research [9,10].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanoprism-Loaded Eggshell Membrane: A Facile Platform for In Situ SERS Monitoring of Catalytic Reactions

Fan

et al. 2017

Crystals

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Abstract:We reported the fabrication of an in situ surface-enhanced Raman scattering (SERS) monitoring platform, comprised of a porous eggshell membrane (ESM) bioscaffold loaded with Ag nanoprism via an electrostatic self-assembly approach. The localized surface plasmon resonance (LSPR) property of silver nanoprism leads to the blue color of the treated ESMs. UV-vis diffuse reflectance spectroscopy, scanning electron microscope (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) measurements were employed to observe the microstructure and surface property of Ag nanoprisms on the ESMs. The silver nanoprism-loaded eggshell membrane (AgNP@ESM) exhibited strong catalytic activity for the reduction of 4-nitrophenol by sodium borohydride (NaBH 4 ) and it can be easily recovered and reused for more than six cycles. Significantly, the composites also display excellent SERS efficiency, allowing the in situ SERS monitoring of molecular transformation in heterogeneous catalysis. The results indicate that the AgNP@ESM biocomposite can achieve both SERS and catalytic functionalities simultaneously in a single entity with high performance, which promotes the potential applications of ESM modified with functional materials.

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“…The biosensors based on electrolyte-gated FETs, also known as liquid gate FETs, have attracted increasing attention due to their advantages of easy processing [ 27 ], low cost [ 28 ], good flexibility [ 29 ], good biocompatibility, and low operating voltage. Figure 2 b shows a typical configuration of a electrolyte-gated CNTFET [ 20 ], in which the electrolyte is used instead of the dielectric layer material to directly contact the gate electrode and the channel.…”

Section: Configuration and Sensing Mechanismmentioning

confidence: 99%

Carbon Nanotube Field-Effect Transistor-Based Chemical and Biological Sensors

Yao

Zhang

Jin

et al. 2021

Sensors

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Chemical and biological sensors have attracted great interest due to their importance in applications of healthcare, food quality monitoring, environmental monitoring, etc. Carbon nanotube (CNT)-based field-effect transistors (FETs) are novel sensing device configurations and are very promising for their potential to drive many technological advancements in this field due to the extraordinary electrical properties of CNTs. This review focuses on the implementation of CNT-based FETs (CNTFETs) in chemical and biological sensors. It begins with the introduction of properties, and surface functionalization of CNTs for sensing. Then, configurations and sensing mechanisms for CNT FETs are introduced. Next, recent progresses of CNTFET-based chemical sensors, and biological sensors are summarized. Finally, we end the review with an overview about the current application status and the remaining challenges for the CNTFET-based chemical and biological sensors.

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A Nanostructured Bifunctional platform for Sensing of Glucose Biomarker in Artificial Saliva: Synergy in hybrid Pt/Au surfaces

Cited by 71 publications

References 68 publications

One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures

One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures

Silver Nanoprism-Loaded Eggshell Membrane: A Facile Platform for In Situ SERS Monitoring of Catalytic Reactions

Carbon Nanotube Field-Effect Transistor-Based Chemical and Biological Sensors

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A Nanostructured Bifunctional platform for Sensing of Glucose Biomarker in Artificial Saliva: Synergy in hybrid Pt/Au surfaces

Cited by 71 publications

References 68 publications

One-step approach for preparing ozone gas sensors based on hierarchical NiCo2O4 structures

One-step approach for preparing ozone gas sensors based on hierarchical NiCo2O4 structures

Silver Nanoprism-Loaded Eggshell Membrane: A Facile Platform for In Situ SERS Monitoring of Catalytic Reactions

Carbon Nanotube Field-Effect Transistor-Based Chemical and Biological Sensors

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Product

Resources

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One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures

One-step approach for preparing ozone gas sensors based on hierarchical NiCo₂O₄ structures