Nanomaterial‐Modified Conducting Paper: Fabrication, Properties, and Emerging Biomedical Applications

Kumar, Saurabh; Pandey, Chandra Mouli; Hatamie, Amir; Simchi, Abdolreza; Willander, Magnus; Malhotra, Bansi D.

doi:10.1002/gch2.201900041

Cited by 26 publications

(16 citation statements)

References 132 publications

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“…Further, the degree of flexibility of the rGO‐TiO 2 @CP was also checked by repeated folding and unfolding (15 cycles) in both directions (−180° to 180°). It was observed that there was a negligible change in conductivity, which may be due to tearing off of the cellulose thread of paper 42 …”

Section: Resultsmentioning

confidence: 99%

PEDOT: PSS‐grafted graphene oxide‐titanium dioxide nanohybrid‐based conducting paper for glucose detection

Paul

Verma

Jalil

et al. 2021

Polymers for Advanced Techs

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In this work, efforts have been made to develop a conducting paper‐ (CP) based biosensor using poly(3,4ethylenedioxythiophene): poly(4‐styrene sulfonate) (PEDOT:PSS)‐grafted reduced graphene oxide‐titanium dioxide (rGO‐TiO2) nanohybrid. The effect of different dopant (ethylene glycol [EG], glycerine and methanol) on the conductivity of the paper has been investigated, and it was observed that the conductivity of the CP significantly increases from 6.9 × 10−5 S/cm to 1.1 × 10−4 S/cm on treatment with EG. While, after the incorporation rGO‐TiO2 nanohybrid into PEDOT:PSS‐grafted paper, the conductivity increased to 4.9 × 10−2 S/cm. The fabricated flexible rGO‐TiO2@CP was characterized using X‐ray diffraction, Thermogravimetric analysis, scanning electron microscopy, FTIR spectroscopy, and amperometric techniques. The developed rGO‐TiO2@CP has been utilized for the immobilization of glucose oxidase for the quantitative estimation of glucose. Electrochemical results reveal that the modified CP shows high sensitivity (94.98 μAmM−1 cm−2) with a low limit of detection (0.01 mM) and can be a promising substitute over other expensive conventional electrodes.

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Section: Resultsmentioning

confidence: 99%

PEDOT: PSS‐grafted graphene oxide‐titanium dioxide nanohybrid‐based conducting paper for glucose detection

Paul

Verma

Jalil

et al. 2021

Polymers for Advanced Techs

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“…Notably, these include both the biological specimen and the user. Reviews that deal with long-term exposure of 3D printed materials can also be found as part of biomedical research (139)(140)(141)(142). Given that FDM is the most user-friendly 3D printing technology, it is reasonable to adopt this technology for biological purposes.…”

Section: Current 3d Printing Challenges and Limitationsmentioning

confidence: 99%

The Field Guide to 3D Printing in Microscopy

Rosario¹,

Heil²,

Mendes³

et al. 2021

Preprint

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The maker movement has reached the optics labs, empowering researchers to actively create and modify microscope designs and imaging accessories. 3D printing has especially had a disruptive impact on the field, as it entails an accessible new approach in fabrication technologies, namely additive manufacturing, making prototyping in the lab available at low cost. Examples of this trend are taking advantage of the easy availability of 3D printing technology. For example, inexpensive microscopes for education have been designed, such as the FlyPi. Also, the highly complex robotic microscope OpenFlexure represents a clear desire for the democratisation of this technology. 3D printing facilitates new and powerful approaches to science and promotes collaboration between researchers, as 3D designs are easily shared. This holds the unique possibility to extend the open-access concept from knowledge to technology, allowing researchers from everywhere to use and extend model structures. Here we present a review of additive manufacturing applications in microscopy, guiding the user through this new and exciting technology and providing a starting point to anyone willing to employ this versatile and powerful new tool.

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“…It can be useful for qualitative and quantitative analyses with a range of analysis. At present, many paper-based sensing platforms have been developed using nanomaterials to enhance the detecting signals [21]. These nanomaterials showed efficient enzyme-like activity [18,22,23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Mesoporous CuO Hollow Sphere Nanozyme for Paper-Based Hydrogen Peroxide Sensor

et al. 2021

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Point-of-care monitoring of hydrogen peroxide is important due to its wide usage in biomedicine, the household and industry. Herein, a paper sensor is developed for sensitive, visual and selective detection of H2O2 using a mesoporous metal oxide hollow sphere as a nanozyme. The mesoporous CuO hollow sphere is synthesized by direct decomposition of copper–polyphenol colloidal spheres. The obtained mesoporous CuO hollow sphere shows a large specific surface area (58.77 m2/g), pore volume (0.56 cm3/g), accessible mesopores (5.8 nm), a hollow structure and a uniform diameter (~100 nm). Furthermore, they are proven to show excellent peroxidase-like activities with Km and Vmax values of 120 mM and 1.396 × 10−5 M·s−1, respectively. Such mesoporous CuO hollow spheres are then loaded on the low-cost and disposable filter paper test strip. The obtained paper sensor can be effectively used for detection of H2O2 in the range of 2.4–150 μM. This work provides a new kind of paper sensor fabricated from a mesoporous metal oxide hollow sphere nanozyme. These sensors could be potentially used in bioanalysis, food security and environmental protection.

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Nanomaterial‐Modified Conducting Paper: Fabrication, Properties, and Emerging Biomedical Applications

Cited by 26 publications

References 132 publications

PEDOT: PSS‐grafted graphene oxide‐titanium dioxide nanohybrid‐based conducting paper for glucose detection

PEDOT: PSS‐grafted graphene oxide‐titanium dioxide nanohybrid‐based conducting paper for glucose detection

The Field Guide to 3D Printing in Microscopy

Synthesis of Mesoporous CuO Hollow Sphere Nanozyme for Paper-Based Hydrogen Peroxide Sensor

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