3D nanostructured inkjet printed graphene via UV-pulsed laser irradiation enables paper-based electronics and electrochemical devices

Das, Suprem R.; Nian, Qiong; Cargill, Allison A.; Hondred, John A.; Ding, Shaowei; Saei, Mojib; Cheng, Gary J.; Claussen, Jonathan C.

doi:10.1039/c6nr04310k

Cited by 115 publications

(147 citation statements)

References 55 publications

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“…40 Additionally, this laser annealing process, performed in ambient air, increases the number of superficial defects while adding oxygenated species (COOH, −CO, and −OH) to the said defects as previously reported. 42 The increase of graphene superficial defects has been shown to significantly increase the nucleation density of PtNPs during electrodeposition.…”

Section: 39mentioning

confidence: 83%

Printed Graphene Electrochemical Biosensors Fabricated by Inkjet Maskless Lithography for Rapid and Sensitive Detection of Organophosphates

Hondred

Breger

Alves

et al. 2018

ACS Appl. Mater. Interfaces

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121

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Solution phase printing of graphene-based electrodes has recently become an attractive low-cost, scalable manufacturing technique to create in-field electrochemical biosensors. Here, we report a graphene-based electrode developed via inkjet maskless lithography (IML) for the direct and rapid monitoring of triple-O linked phosphonate organophosphates (OPs); these constitute the active compounds found in chemical warfare agents and pesticides that exhibit acute toxicity as well as long-term pollution to soils and waterways. The IML-printed graphene electrode is nano/microstructured with a 1000 mW benchtop laser engraver and electrochemically deposited platinum nanoparticles (dia. ∼25 nm) to improve its electrical conductivity (sheet resistance decreased from ∼10 000 to 100 Ω/sq), surface area, and electroactive nature for subsequent enzyme functionalization and biosensing. The enzyme phosphotriesterase (PTE) was conjugated to the electrode surface via glutaraldehyde cross-linking. The resulting biosensor was able to rapidly measure (5 s response time) the insecticide paraoxon (a model OP) with a low detection limit (3 nM), and high sensitivity (370 nA/μM) with negligible interference from similar nerve agents. Moreover, the biosensor exhibited high reusability (average of 0.3% decrease in sensitivity per sensing event), stability (90% anodic current signal retention over 1000 s), longevity (70% retained sensitivity after 8 weeks), and the ability to selectively sense OP in actual soil and water samples. Hence, this work presents a scalable printed graphene manufacturing technique that can be used to create OP biosensors that are suitable for in-field applications as well as, more generally, for low-cost biosensor test strips that could be incorporated into wearable or disposable sensing paradigms.

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Section: 39mentioning

confidence: 83%

Printed Graphene Electrochemical Biosensors Fabricated by Inkjet Maskless Lithography for Rapid and Sensitive Detection of Organophosphates

Hondred

Breger

Alves

et al. 2018

ACS Appl. Mater. Interfaces

Self Cite

121

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“…Inkjet printing of the extract closely followed our similar procedures for printing graphene inks . For preparing inkjet‐printed thin film biodetectors, aliquots (3 mL) of extract were filtered through a 0.45 µm.…”

Section: Methodsmentioning

confidence: 99%

“…The printed line morphology resulting from the drop spacing and the working temperature control edge effects (known as the coffee ring effect). Our previous work shows that average film thickness is between 3 and 5 µm, classifying this structure as a thin film . A circular array was designed using computer‐aided design (CAD software) and inkjet printed.…”

Section: Methodsmentioning

confidence: 99%

Cryoconcentration of flavonoid extract for enhanced biophotovoltaics and pH sensitive thin films

Demırbas

Groszman

Pazmiño-Hernandez

et al. 2017

Biotechnology Progress

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Flavonoids are important value added products for dye sensitized solar cells biosensors, functional foods, medicinal supplements, nanomaterial synthesis, and other applications. Brassica oleracea contains high levels of anthocyanins in leaf sap vacuoles, and there are many viable extraction techniques that vary in terms of simplicity, environmental impact, cost, and extract photochemical/electrochemical properties. The efficiency of value added biotechnologies from flavonoid is a function of anthocyanin activity/concentration and molecule stability (i.e., ability to retain molecular resonance under a wide range of conditions). In this paper, we show that block cryoconcentration and partial thawing of anthocyanin from B. oleracea is a green, facile, and highly efficient technique that does not require any special equipment or protocols for producing enhanced value added products. Cryoconcentration increased anthocyanin activity and total phenol content approximately 10 times compared with common extraction techniques. Cryoconcentrated extract had enhanced electrochemical properties (higher oxidation potential), improved chroma, and higher UV absorbance than extract produced with other methods for a pH range of 2-12, with minimal effect on the diffusion coefficient of the extract. As a proof of concept for energy harvesting and sensor applications, dye sensitized solar cells and pH-sensitive thin films were prepared and tested. These devices were comparable with other recently published biotechnologies in terms of efficacy, but did not require expensive/environmentally detrimental extraction or concentration methods. This low cost, biorenewable, and simple method can be used for development of a variety of value added products. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 34:206-217, 2018.

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“…This research team engineered an SPR substrate based on a GO-coated Au surface for the screening of a cardiac biomarker (galectin-3), reaching a clinically relevant concentration range. [115] Moreover, GO leads to generation of flexible membrane-like SERS substrates than can be utilized as pre-concentration platforms for highly sensitive analysis of large volumes. They also concluded that the SPR sensitivity was observed to be proportional to the thickness of the explored GO coating.…”

Section: Go In Label-free Optical Biosensingmentioning

confidence: 99%

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

2018

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IntroductionAs a 2D material, graphene oxide (GO) is a lattice-like nanostructure of hexagonal carbon rings disrupted by oxygen-containing moieties. In 2012, we discussed the outstanding physicochemical properties offered by GO and how these features can be exploited in unprecedented optical biosensing systems. [1] In fact, GO can be processed in suspension, easily complexed with biomolecules, and offers a universal highly efficient long-range photoluminescence quenching agent-among other functional properties. Furthermore, we highlighted that GO photoluminescences with energy transfer donor/acceptor molecules exposed A few years ago, crucial graphene oxide (GO) features such as the carbon/oxygen ratio, number of layers, and lateral size were scarcely investigated and, thus, their impact on the overall optical biosensing performance was almost unknown. Nowadays valuable insights about these features are well documented in the literature, whereas others remain controversial. Moreover, most of the biosensing systems based on GO were amenable to operating as colloidal suspensions. Currently, the literature reports conceptually new approaches obviating the need of GO colloidal suspensions, enabling the integration of GO onto a solid phase and leading to their application in new biosensing devices. Furthermore, most GO-based biosensing devices exploit photoluminescent signals. However, further progress is also achieved in powerful label-free optical techniques exploiting GO in biosensing, particularly using optical fibers, surface plasmon resonance, and surface enhanced Raman scattering. Herein, a critical overview on these topics is offered, highlighting the key role of the physicochemical properties of GO. New challenges and opportunities in this exciting field are also highlighted.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201805043.in a planar surface. [1] However, GO properties can be tailored according to its oxidation degree, lateral size, and number of layers, which was something little explored 6 years ago, and thus their impact on the overall biosensing performance was almost unknown. In addition, most of the biosensing systems based on GO were amenable to working as colloidal suspensions. Though, recent literature reports conceptually new approaches obviating the need of colloidal suspensions, which facilitates integration of GO-based biosensors into the solid phase and allows for their applications in new devices. Furthermore, the majority of the GO-based optical biosensing techniques rely on photoluminescent signals. However, further progress has also been achieved in powerful label-free optical techniques exploiting GO in biosensing. Here, we introduce a progress report on this exciting topic, underscoring challenges and opportunities in (bio)sensing accordingly. Number of LayersGO aqueous suspensions are highly stable in the form of mono layers. However, GO multilayer films can be built via

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3D nanostructured inkjet printed graphene via UV-pulsed laser irradiation enables paper-based electronics and electrochemical devices

Cited by 115 publications

References 55 publications

Printed Graphene Electrochemical Biosensors Fabricated by Inkjet Maskless Lithography for Rapid and Sensitive Detection of Organophosphates

Printed Graphene Electrochemical Biosensors Fabricated by Inkjet Maskless Lithography for Rapid and Sensitive Detection of Organophosphates

Cryoconcentration of flavonoid extract for enhanced biophotovoltaics and pH sensitive thin films

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

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