Implications of Chemical Reduction Using Hydriodic Acid on the Antimicrobial Properties of Graphene Oxide and Reduced Graphene Oxide Membranes

Alayande, Abayomi Babatunde; Park, Hee Deung; Vrouwenvelder, Johannes S.; Kim, In Soo

doi:10.1002/smll.201901023

Cited by 61 publications

(25 citation statements)

References 65 publications

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“…GO is electrically insulating and hinders the application of electronic devices. Therefore, it is essential to recover π conjugated structures via thermal reduction, chemical reduction, or laser reduction . But many substrates cannot endure these harsh conditions like high temperature and strong oxidants so that the methods cannot be applied in many fabrication processes …”

Section: Fabrication Methods Of Graphenementioning

confidence: 99%

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

2021

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Laser-induced graphene (LIG) is produced rapidly by directly irradiating carbonaceous precursors, and it naturally exhibits as a three-dimensional porous structure. Due to advantages such as simple preparation, time-saving, environmental friendliness, low cost, and expanding categories of raw materials, LIG and its derivatives have achieved broad applications in sensors. This has been witnessed in various fields such as wearable devices, disease diagnosis, intelligent robots, and pollution detection. However, despite LIG sensors having demonstrated an excellent capability to monitor physical and chemical parameters, the systematic review of synthesis, sensing mechanisms, and applications of them combined with comparison against other preparation approaches of graphene is still lacking. Here, graphene-based sensors for physical, biological, and chemical detection are reviewed first, followed by the introduction of general preparation methods for the laser-induced method to yield graphene. The preparation and advantages of LIG, sensing mechanisms, and the properties of different types of emerging LIG-based sensors are comprehensively reviewed. Finally, possible solutions to the problems and challenges of preparing LIG and LIG-based sensors are proposed. This review may serve as a detailed reference to guide the development of LIG-based sensors that possess properties for future smart sensors in health care, environmental protection, and industrial production.

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Section: Fabrication Methods Of Graphenementioning

confidence: 99%

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

2021

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“…The GO/protein/CYs (GO/amyloid monomer/CY and GO/amyloid nanofibril/CY) were dried in a fume hood before the reduction of GO. Next, the attached GO flakes on the yarn surface were transformed into rGO flakes through a chemical reduction method . The GO/protein/CYs were immersed in a vial containing hydriodic acid (57 wt% in H 2 O, Sigma Aldrich) and acetic acid (>99.5%), and the vial was heated at 40 °C for 2 h. After the chemical reduction, the yarns were washed several times with saturated sodium bicarbonate (NaHCO 3 , Sigma Aldrich) solution and distilled water to remove residual reducing agent .…”

Section: Methodsmentioning

confidence: 99%

Bio-Inspired Electronic Textile Yarn-Based NO₂ Sensor Using Amyloid–Graphene Composite

Lee

Kim

et al. 2020

ACS Sens.

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Graphene-based e-textile gas sensors have received significant attention as wearable electronic devices for human healthcare and environmental monitoring. Theoretically, more the attached graphene on the devices, better is the gas-sensing performance. However, it has been hampered by poor adhesion between graphene and textile platforms. Meanwhile, amyloid nanofibrils are reputed for their ability to improve adhesion between materials, including between graphene and microorganisms. Despite that fact, there has been no attempt to apply amyloid nanofibrils to fabricate graphene-based e-textiles. By biomimicking the adhesion ability of amyloid nanofibrils, herein, we developed a graphene−amyloid nanofibril hybrid e-textile yarn (RGO/amyloid nanofibril/CY) for the detection of NO 2 . Compared to traditional e-textile yarn, the RGO/amyloid nanofibril/CY showed better performance in response time, sensing efficiency, sensitivity, and selectivity for NO 2 . Last, we suggested a practical use of RGO/ amyloid nanofibril/CY combined with a light-emitting diode as a wearable e-textile gas sensor.

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“…On the other hand, some literatures have reported about the antibacterial property of graphene material [35][36][37] and some reports have shown the lack of antimicrobial ability [38] but as antimicrobial agents graphene nanocomposites have received many satisfactorily reverberations [39][40][41][42].…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Exploration of photoreduction ability of reduced graphene oxide–cadmium sulphide hetero-nanostructures and their intensified activities against harmful microbes

et al. 2021

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Fabrication of effective photocatalyst using semiconductors and graphene or reduced graphene oxide has been regarded as one of the most promising task to attenuate the environmental pollution. This paper reports the synthesis of different nanocomposites of reduced graphene oxide-cadmium sulfide (RGO-CdS) with varying weight ratio of RGO by simple reflux condensation reaction, during which the reduction of graphene oxide (GO) and formation of CdS nanoparticles occur simultaneously. The combination of CdS nanoparticles (NPs) with the optimum amount of RGO gives a noticeable effect on the properties of the synthesized hybrid nanocomposites, such as enhanced optical, photocatalytic properties. The microscopic studies proved that with the increasing RGO content in the nanocomposites, the particle size decreases and got different shapes. These nanocomposites have been investigated separately as nanocatalyst for the reduction of Cr(VI) to Cr(III) in the presence of visible light irradiation and the catalytic activity depends on the pH of the medium and also the particle size of the CdS NPs which are supported by the band gap energy derived from Tauc's equation. The significant increase in photocatalytic performance of the RGO-CdS nanocomposite was attributed to high electron conductivity of the CdS NPs and RGO surface which facilitates charge separation and prolongs the lifetime of photogenerated electron-hole pairs by decreasing the recombination rate. Antibacterial and antiprotozoal activities have been investigated to determine the efficiency of these RGO-CdS nanocomposites on different bacterial and protozoan strains.

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Implications of Chemical Reduction Using Hydriodic Acid on the Antimicrobial Properties of Graphene Oxide and Reduced Graphene Oxide Membranes

Cited by 61 publications

References 65 publications

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Bio-Inspired Electronic Textile Yarn-Based NO₂ Sensor Using Amyloid–Graphene Composite

Exploration of photoreduction ability of reduced graphene oxide–cadmium sulphide hetero-nanostructures and their intensified activities against harmful microbes

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Implications of Chemical Reduction Using Hydriodic Acid on the Antimicrobial Properties of Graphene Oxide and Reduced Graphene Oxide Membranes

Cited by 61 publications

References 65 publications

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Bio-Inspired Electronic Textile Yarn-Based NO2 Sensor Using Amyloid–Graphene Composite

Exploration of photoreduction ability of reduced graphene oxide–cadmium sulphide hetero-nanostructures and their intensified activities against harmful microbes

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Bio-Inspired Electronic Textile Yarn-Based NO₂ Sensor Using Amyloid–Graphene Composite