Nanomaterials for sensors: Synthesis and applications

Adil, Laxmi Raman; Parui, Retwik; Khatun, Mst Nasima; Chanu, Moirangthem Anita; Li, Lidong; Wang, Shu; Iyer, Parameswar Krishnan

doi:10.1016/b978-0-323-85725-3.00017-9

Cited by 6 publications

(3 citation statements)

References 161 publications

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“…Nanomaterials refer to materials that are characterized by at least one dimension on the nanometer scale, typically ranging from 1 to 100 nanometers. [ 16,17 ] At this scale, materials often exhibit unique and distinctive properties compared to their bulk or micro counterparts, and their unique properties can be primarily attributed to two factors: surface effects and quantum effects, which we will be discussing in more detail in later sections. These factors result in nanomaterials displaying improved or novel properties in terms of mechanics, thermal conductivity, magnetism, electronics, optics, and catalysis.…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials in 4D Printing: Expanding the Frontiers of Advanced Manufacturing

Guo,

Cui,

Agarwal

et al. 2024

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As an innovative technology, four‐dimentional (4D) printing is built upon the principles of three‐dimentional (3D) printing with an additional dimension: time. While traditional 3D printing creates static objects, 4D printing generates “responsive 3D printed structures”, enabling them to transform or self‐assemble in response to external stimuli. Due to the dynamic nature, 4D printing has demonstrated tremendous potential in a range of industries, encompassing aerospace, healthcare, and intelligent devices. Nanotechnology has gained considerable attention owing to the exceptional properties and functions of nanomaterials. Incorporating nanomaterials into an intelligent matrix enhances the physiochemical properties of 4D printed constructs, introducing novel functions. This review provides a comprehensive overview of current applications of nanomaterials in 4D printing, exploring their synergistic potential to create dynamic and responsive structures. Nanomaterials play diverse roles as rheology modifiers, mechanical enhancers, function introducers, and more. The overarching goal of this review is to inspire researchers to delve into the vast potential of nanomaterial‐enabled 4D printing, propelling advancements in this rapidly evolving field.

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Section: Introductionmentioning

confidence: 99%

Nanomaterials in 4D Printing: Expanding the Frontiers of Advanced Manufacturing

Guo,

Cui,

Agarwal

et al. 2024

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“…Recently, electrochemical sensors have been used for the accurate quantification of NFT in environmental samples with high sensitivity and selectivity. In the electrochemical sensors, the electrocatalytic materials play a vital role because of their high surface-tovolume ratio and catalytic activity which helped to achieve high selectivity and sensitivity against the particular analyte in the samples [14]. The nanomaterials were classified as 0D (quantum dots) [15,16], 1D (carbon nanotube, nanorod, and nanowire) [17,18], 2D (graphene, MXene, MoS 2 , etc.)…”

Section: Introductionmentioning

confidence: 99%

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

Nagarajan¹,

Magesh

Sundramoorthy

et al. 2023

Journal of Nanomaterials

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The design and development of a new kind of cost-effective electrode material with excellent selectivity and stability are still a great challenge in the field of electrochemical sensors. Recently, researchers have paid more attention to the electrochemical reduction of nitro compounds due to their hazardous nature. Nitro compounds play a vital role in various industrial applications. However, the direct discharge of nitro compounds to the environment as industrial wastewater is harmful. In this study, a nanocomposite made of 1D graphene nanoribbons decorated with manganese dioxide (GNR-MnO2) was prepared to fabricate an electrochemical transducer for the determination of nitrofurantoin (NFT) in biofluids. First, 1D GNR was prepared by unzipping of multiwalled carbon nanotubes. Second, the GNR was decorated with MnO2 by the hydrothermal reduction method. As-prepared GNR-MnO2 nanocomposite was comprehensively characterized by field emission scanning electron microscopy with EDX, XRD, UV–visible, electrochemical impedance spectroscopy, and cyclic voltammetry. Moreover, GNR-MnO2-coated glassy carbon electrode (GCE) exhibited good electrocatalytic activity toward NFT. The electroreduction of NFT was found at −0.40 V which was 50 mV lower than bare GCE. GNR-MnO2 nanocomposite modified GCE showed a well-defined linear reduction peak current for NFT from 10 nM to 1,000 µM. The selectivity of the sensor was also analyzed in the presence of other nitro compounds which confirmed that NFT can be selectively detected at −0.4 V. The GNR-MnO2 modified electrode was also able to separate reduction peaks of other nitro compounds. In addition, the detection of NFT was carried out in human urine samples with a good recovery of 99.60%–98.60%.

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“…Nanotechnology is gaining attraction as a new generation of advanced technology, enduring novel approaches to mitigate technological problems and their solutions. The particulate matter with one of its dimensions in the 1-100 nm range is considered for study under nanotechnology (Adil et al, 2022). Nanomaterials studied are fabricated using various methodologies, such as chemical, physical, or biological methods (Rai et al, 2021b).…”

Section: Introductionmentioning

confidence: 99%

Fungus Mediated Copper Oxide Nanoparticles against Fungi Isolated from Soft-rot Infected Ginger

Gade

2023

Kavaka

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Ginger is one of the cash crops grown worldwide, and consumed daily as a spice food, and utilized as Ayurvedic medicine. Soft-rot or rhizome-rot, is a major rhizome-deteriorating fungal disease caused by various fungi like Fusarium spp. and Pythium spp. in ginger, leading to huge yield losses and economic losses. This study reported in vitro antifungal activity of Phoma herbarum, cell-free extract-mediated copper oxide nanoparticles (CuONPs) against Pythium and Fusarium isolates from soft-rot infected ginger, identified at the genus level microscopically. CuONPs were detected by a visible color change from blue to dark brick red precipitate and characterized by Ultra Violet (UV)-visible spectrophotometry (absorbance maxima at 630 nm) and Nanoparticle Tracking Analysis (average size 83 nm). Stability was confirmed by Zeta potential measurement (-23.5 mV), and Face Centered Cubic crystalline structure was elucidated by X-ray diffractometry, and roughly spherical crystals were visualized by Field Emission Scanning Electron Microscopy (FESEM). Fourier Transform Infra-red (FTIR) spectroscopy showed the presence of various functional groups that stabilized CuONPs. The in vitro study showed significant antifungal activity of mycogenic CuONPs against test fungi, which was substantially comparable with a chemical fungicide, i.e., mancozeb. Accordingly, the findings supported the application of mycogenic CuONPs as a cutting-edge antifungal agent in the direction of sustainable agriculture.

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Nanomaterials for sensors: Synthesis and applications

Cited by 6 publications

References 161 publications

Nanomaterials in 4D Printing: Expanding the Frontiers of Advanced Manufacturing

Nanomaterials in 4D Printing: Expanding the Frontiers of Advanced Manufacturing

Graphene Nanoribbons/Manganese Oxide Nanocomposite Modified Electrode for Detection of Antimicrobial Drug Nitrofurantoin

Fungus Mediated Copper Oxide Nanoparticles against Fungi Isolated from Soft-rot Infected Ginger

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