Reduced graphene oxide-based optical sensor for detecting specific protein

Jiang, Wenshuai; Wei, Xin; Xun, Shuang; Chen, Shao-Nan; Gao, Xiao‐Guang; Liu, Zhibo; Tian, Jianguo

doi:10.1016/j.snb.2017.03.175

Cited by 49 publications

(32 citation statements)

References 32 publications

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“…The formation of rGO gratings on a rigid substrate is the basis for further complex operations, which also exhibits potential application in optoelectronics, such as in the fabrication of tuneable terahertz and hyperbolic metamaterial devices 5,7 . Here, GO was prepared using the modified Hummer's method 40,41 . After being fully dissolved in deionized water, a uniform film with añ 140 nm thickness was spin-coated on the surface of a commercial silicon slice (300 nm SiO 2 ).…”

Section: Resultsmentioning

confidence: 99%

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

et al. 2020

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Micro/nanoprocessing of graphene surfaces has attracted significant interest for both science and applications due to its effective modulation of material properties, which, however, is usually restricted by the disadvantages of the current fabrication methods. Here, by exploiting cylindrical focusing of a femtosecond laser on graphene oxide (GO) films, we successfully produce uniform subwavelength grating structures at high speed along with a simultaneous in situ photoreduction process. Strikingly, the well-defined structures feature orientations parallel to the laser polarization and significant robustness against distinct perturbations. The proposed model and simulations reveal that the structure formation is based on the transverse electric (TE) surface plasmons triggered by the gradient reduction of the GO film from its surface to the interior, which eventually results in interference intensity fringes and spatially periodic interactions. Further experiments prove that such a regular structured surface can cause enhanced optical absorption (>20%) and an anisotropic photoresponse (~0.46 ratio) for the reduced GO film. Our work not only provides new insights into understanding the laser-GO interaction but also lays a solid foundation for practical usage of femtosecond laser plasmonic lithography, with the prospect of expansion to other two-dimensional materials for novel device applications.

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Section: Resultsmentioning

confidence: 99%

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

et al. 2020

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“…The GO-COOH SPR chip can be improved four times over the SPR angle shift and achieved the lowest antibody detection limit of 0.01 pg/mL. Other work has reported the reduction of GO-based SPR fabricated by thermal reduction at high temperature, the so-called RGO SPR, with a thickness of 8.1 nm [ 116 ]. The performance of the RGO SPR biosensor shows a response to rabbit immunoglobulin G (rabbit IgG) with a LOD of 0.0625 μg/mL.…”

Section: Engineering Of Biosesnsor Devices Using Graphene-based Mamentioning

confidence: 99%

“… Schematic illustration of functionalized graphene-based biosensors: ( a ) a glucose detection based on GO FET (reprinted with permission from [ 111 ]); ( b ) DNA detection based on printing GO/pentacene FET (reprinted with permission from [ 110 ]); ( c ) urea platform biosensor based on Urease/PEI/RGO FET (reprinted with permission from [ 112 ]); ( d ) Heart failure detection based on Pt NPS/RGO FET (reprinted with permission from [ 113 ]); ( e ) Biotin-SA/GO SPR chip (reprinted with permission from [ 114 ]); ( f ) BSA biosensor based on GO-COOH enhanced SPR (reprinted with permission from [ 117 ]); ( g ) rabbit IgG detection based on RGO SPR (reprinted with permission from [ 116 ]); and ( h ) FRET biosensor based on GQD-PEG aptamer/MoS 2 (reprinted with permission from [ 23 ]). …”

Section: Figurementioning

confidence: 99%

Graphene-Based Materials for Biosensors: A Review

Suvarnaphaet

Pechprasarn

2017

Sensors

403

143

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The advantages conferred by the physical, optical and electrochemical properties of graphene-based nanomaterials have contributed to the current variety of ultrasensitive and selective biosensor devices. In this review, we present the points of view on the intrinsic properties of graphene and its surface engineering concerned with the transduction mechanisms in biosensing applications. We explain practical synthesis techniques along with prospective properties of the graphene-based materials, which include the pristine graphene and functionalized graphene (i.e., graphene oxide (GO), reduced graphene oxide (RGO) and graphene quantum dot (GQD). The biosensing mechanisms based on the utilization of the charge interactions with biomolecules and/or nanoparticle interactions and sensing platforms are also discussed, and the importance of surface functionalization in recent up-to-date biosensors for biological and medical applications.

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“…Depending on the binding-induced refractive index alteration of the solvent near the surface, SPR biosensors can accomplish a real-time, label-free recognition for the target analyte with high sensitivity. Carbon nanomaterials are good candidates for these types of optical biosensors tools [ [39] , [40] , [41] , [42] ].…”

Section: Carbon Nanomaterials For Diagnostic Applicationsmentioning

confidence: 99%

Application of carbon nanomaterials in human virus detection

Ehtesabi

2020

Journal of Science: Advanced Materials and Devices

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Human-pathogenic viruses are still a chief reason for illness and death on the globe, as epitomized by the COVID-19 pandemic instigated by a coronavirus in 2020. Multiple novel sensors have been invented because diseases must be detected and diagnosed as early as possible, and recognition methods have to be carried out with minimal invasivity. Sensors have been particularly developed focusing on miniaturization by the use of nanomaterials for fabricating nanosensors. The nano-sized nature of nanomaterials and their exclusive optical, electronical, magnetical, and mechanical attributes can enhance patient care through the use of sensors with minimal invasivity and extreme sensitivity. Amongst the nanomaterials utilized for fabricating nano-sensors, carbon-based nanomaterials are promising as these sensors respond better to signals in various sensing settings. This review provides an overview of the recent developments in carbon nanomaterial-based biosensors for viral recognition based on the biomarkers that arise from the infection, the nucleic acids from the viruses, and the entire virus. The role of carbon nanomaterials is highlighted by the improvement of sensor and recognition functionality. The Dengue virus, Ebola virus, Hepatits virus, human immunodeficiency virus (HIV), influenza virus, Zika virus and Adenovirus are the virus types reviewed to illustrate the implementation of the techniques. Finally, the drawbacks and advantages of carbon nanomaterial-based biosensors for viral recognition are identified and discussed.

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Reduced graphene oxide-based optical sensor for detecting specific protein

Cited by 49 publications

References 32 publications

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

Graphene-Based Materials for Biosensors: A Review

Application of carbon nanomaterials in human virus detection

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