Improved NO2 Gas Sensing Properties of Graphene Oxide Reduced by Two-beam-laser Interference

Guo, Li; Hao, Yawei; Li, Peilong; Song, Jiangfeng; Yang, Ruizhu; Fu, Xiu-Yan; Xie, Songhai; Zhao, Jing; Zhang, Yong‐Lai

doi:10.1038/s41598-018-23091-1

Cited by 74 publications

(34 citation statements)

References 29 publications

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“…Moreover, the response increases monotonically from 6.1% at 200 ppb NO 2 to 22.5% at 2 ppm NO 2 . Guo et al fabricated a NO 2 gas sensor from the room-temperature reduction of GO via two-beam-laser interference (TBLI) [162]. The fabricated RGO sensor enhanced the sensing response for NO 2 and accelerated the response/recovery rates.…”

Section: Electronic Properties and Applicationsmentioning

confidence: 99%

Electronic and Thermal Properties of Graphene and Recent Advances in Graphene Based Electronics Applications

et al. 2019

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Recently, graphene has been extensively researched in fundamental science and engineering fields and has been developed for various electronic applications in emerging technologies owing to its outstanding material properties, including superior electronic, thermal, optical and mechanical properties. Thus, graphene has enabled substantial progress in the development of the current electronic systems. Here, we introduce the most important electronic and thermal properties of graphene, including its high conductivity, quantum Hall effect, Dirac fermions, high Seebeck coefficient and thermoelectric effects. We also present up-to-date graphene-based applications: optical devices, electronic and thermal sensors, and energy management systems. These applications pave the way for advanced biomedical engineering, reliable human therapy, and environmental protection. In this review, we show that the development of graphene suggests substantial improvements in current electronic technologies and applications in healthcare systems.

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Section: Electronic Properties and Applicationsmentioning

confidence: 99%

Electronic and Thermal Properties of Graphene and Recent Advances in Graphene Based Electronics Applications

et al. 2019

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“…[10, 11] Additionally, GO has a high surface area available for functionalization and superior mechanical properties,[12, 13] which altogether makes it attractive for optoelectronics (LED devices and solar cells), tissue engineering and drug delivery. [14–18] GO is utilized as a basis for nanoscale sensors serving for the detection of small molecules such as NO 2 in automovite emissions,[19] proteins,[20] influenza viral strains [21] and fluorescence-based pH-sensing that can be used to detect cancerous environments. [22] GO exhibits efficient internalization and stable fluorescence emission inside the cells, and has low cytotoxicity at the concentrations used in imaging.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional graphene oxide/iron oxide nanoparticles for magnetic targeted drug delivery dual magnetic resonance/fluorescence imaging and cancer sensing

González-Rodríguez¹,

Campbell²,

Naumov³

2019

PLoS ONE

129

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Graphene Oxide (GO) has recently attracted substantial attention in biomedical field as an effective platform for biological sensing, tissue scaffolds and in vitro fluorescence imaging. However, the targeting modality and the capability of its in vivo detection have not been explored. To enhance the functionality of GO, we combine it with superparamagnetic iron oxide nanoparticles (Fe 3 O 4 NPs) serving as a biocompatible magnetic drug delivery addends and magnetic resonance contrast agent for MRI. Synthesized GO-Fe 3 O 4 conjugates have an average size of 260 nm and show low cytotoxicity comparable to that of GO. Fe 3 O 4 nanoparticles provide superparamagnetic properties for magnetic targeted drug delivery allowing simple manipulation by the magnetic field and magnetic resonance imaging with high r 2 /r 1 relaxivity ratios of ~10.7. GO-Fe 3 O 4 retains pH-sensing capabilities of GO used in this work to detect cancer versus healthy environments in vitro and exhibits fluorescence in the visible for bioimaging. As a drug delivery platform GO-Fe 3 O 4 shows successful fluorescence-tracked transport of hydrophobic doxorubicin non-covalently conjugated to GO with substantial loading and 2.5-fold improved efficacy. As a result, we propose GO-Fe 3 O 4 nanoparticles as a novel multifunctional magnetic targeted platform for high efficacy drug delivery traced in vitro by GO fluorescence and in vivo via MRI capable of optical cancer detection.

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“…This leads to formation of hydrogen bonds among the nitrogen oxides and ZGNR, which significantly contributes to increasing their binding energy. The interaction among nitrogen oxides with ZGNR with the epoxy group and hydroxyl groups can be attributed to the development of hydrogen bonds OH…O(N) between NO x and -OH and the formation of new weak covalent bonds (C…N as well as C…O), as well as H elimination to produce nitrous acid- and nitric acid-like moieties [ 60 , 61 ].…”

Section: Discussionmentioning

confidence: 99%

Enhancing the Sensing Performance of Zigzag Graphene Nanoribbon to Detect NO, NO2, and NH3 Gases

Salih

Ayesh

2020

Sensors

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In this article, a zigzag graphene nanoribbon (ZGNR)-based sensor was built utilizing the Atomistic ToolKit Virtual NanoLab (ATK-VNL), and used to detect nitric oxide (NO), nitrogen dioxide (NO2), and ammonia (NH3). The successful adsorption of these gases on the surface of the ZGNR was investigated using adsorption energy (Eads), adsorption distance (D), charge transfer (∆Q), density of states (DOS), and band structure. Among the three gases, the ZGNR showed the highest adsorption energy for NO with −0.273 eV, the smallest adsorption distance with 2.88 Å, and the highest charge transfer with −0.104 e. Moreover, the DOS results reflected a significant increase of the density at the Fermi level due to the improvement of ZGNR conductivity as a result of gas adsorption. The surface of ZGNR was then modified with an epoxy group (-O-) once, then with a hydroxyl group (-OH), and finally with both (-O-) and (-OH) groups in order to improve the adsorption capacity of ZGNR. The adsorption parameters of ZGNR were improved significantly after the modification. The highest adsorption energy was found for the case of ZGNR-O-OH-NO2 with −0.953 eV, while the highest charge transfer was found for the case of ZGNR-OH-NO with −0.146 e. Consequently, ZGNR-OH and ZGNR-O-OH can be considered as promising gas sensors for NO and NO2, respectively.

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Improved NO2 Gas Sensing Properties of Graphene Oxide Reduced by Two-beam-laser Interference

Cited by 74 publications

References 29 publications

Electronic and Thermal Properties of Graphene and Recent Advances in Graphene Based Electronics Applications

Electronic and Thermal Properties of Graphene and Recent Advances in Graphene Based Electronics Applications

Multifunctional graphene oxide/iron oxide nanoparticles for magnetic targeted drug delivery dual magnetic resonance/fluorescence imaging and cancer sensing

Enhancing the Sensing Performance of Zigzag Graphene Nanoribbon to Detect NO, NO2, and NH3 Gases

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