Electrochemical Synthesis of β‐Cyclodextrin Functionalized Silver Nanoparticles and Reduced Graphene Oxide Composite for the Determination of Hydrazine

Devasenathipathy, Rajkumar; Tsai, Shin-Hung; Chen, Shen‐Ming; Karuppiah, Chelladurai; Wang, Sea-Fue

doi:10.1002/elan.201501125

Cited by 20 publications

(6 citation statements)

References 43 publications

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“…Rejkumar et al proposed the XRD pattern of RGO/β‐CD/AgNPs. They observed only RGO and AgNPs planes are not present in β‐CD corresponding planes 51 . Whereas in our study a similar result is observed because the β‐CD has completely interacted with AgNPs as well as PVA hydrophobically.…”

Section: Resultssupporting

confidence: 87%

“…They observed only RGO and AgNPs planes are not present in β-CD corresponding planes. 51 Whereas in our study a similar result is observed because the β-CD has completely interacted with AgNPs as well as PVA hydrophobically. Overall XRD result explains that the presence of high and sharp peaks indicates good crystallinity in the AgNPs.…”

Section: Characterization Of Agnpssupporting

confidence: 86%

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Preparation of gallic acid functionalized polyvinyl alcohol/β‐cyclodextrin‐silver nanoparticles cast film as an antimicrobial and antioxidant agent

Narayanan,

Govindasamy,

Shanmugasundram

et al. 2023

J of Applied Polymer Sci

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In recent studies, researchers have been dedicated to the synthesis of silver nanoparticles (AgNPs) that can be adjusted in size, owing to their unique physical and chemical properties. In this study, AgNPs with well‐defined and stable characteristics are successfully functionalized with Gallic acid (GA) within a polymer matrix consisting of polyvinyl alcohol/β‐cyclodextrin polymeric biofilms (BFs) using a casting approach. To evaluate the particle size, functional groups, and crystallinity of the AgNPs, various techniques including UV, FT‐IR, TEM, and XRD are employed. The prepared BF films (BFs) are comprehensively analyzed for mechanical strength, color ratio, swelling ratio, surface morphology, elemental ratio, thermal behavior, and water wettability using stress–strain analysis, spectrophotometer color lab, SEM, EDAX, TGA, and contact angle techniques. Furthermore, the antimicrobial properties of the BFs are also investigated, along with their antioxidant activity assessed through the DPPH radical assay. The multifunctional BFs exhibited promising potential as antimicrobial agents for food preservation.

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Section: Resultssupporting

confidence: 87%

Section: Characterization Of Agnpssupporting

confidence: 86%

Preparation of gallic acid functionalized polyvinyl alcohol/β‐cyclodextrin‐silver nanoparticles cast film as an antimicrobial and antioxidant agent

Narayanan,

Govindasamy,

Shanmugasundram

et al. 2023

J of Applied Polymer Sci

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“…The sensitivity of our fabricated electrode was found to be 108 μA mM −1 cm −2 and the limit of detection (LOD) was calculated from the formula, LOD=3 s b /S (where, s b =standard deviation of blank signal and S=slope of the linear fit). The value of LOD was calculate to be 84 nM by substituting the value of slope of the linear fit and standard deviation of blank signal . The obtained values of linear range, sensitivity and LOD indicates that the prepared nanocomposite is a robust and an excellent electrocatalyst for the sensitive detection of DA.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Graphene/Cobalt Oxide Nanohexagons for the Selective Detection of Dopamine

et al. 2016

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1Introduction Dopamine (4-(2-aminoethyl) benzene-1,2d iol) is ac atecholamine derivative,s ecreted naturally in the mid brain region of mammals [1].A saneurotransmitter, dopamine (DA) distributioni nther ange of 10 À6 to 10 À8 Ma ts ubstantia nigra( mid brain region)i sr esponsible for the humanm etabolism [1a, 2].I tc ontrols simultaneously the functioning of both central nervous system and renal system [3].A lthough DA has an umber of inevitable roles,its abnormals ecretioninhuman beings leads to various disorders relatedw ith human brain. And so,t he determination of DA level is highly important for diagnosing diseases namely Parkinsons, Alzheimers, epilepsy, pheochromocytoma and so on [4].N umber of methods including electrochemical [1b],c hromatography [5],s pectrophotometry [6] and colorimetry [7] therefore have been used for the determination of DA.P articularly,e lectrochemical method is preferred for the determinationo f DA in recent years on account of its simplicity,s hort working time,l ow cost and high sensitivity compared to other methods [8].H owever, electrode fouling, large over potential and selectivity are the main key issues to ignore the unmodified electrode in the fabricationo fd opamine sensor. To minimize these key issues,n umbero fmetal and metal oxides supported along with carbon materials have been used to modify the electrodes urface in recent years [9].Cobalt oxide (Co 3 O 4 )h as proved to be ap romisingi norganicm etal oxide for the electrodef abrication in numerousa pplications such as super capacitors [10],l ithium ion batteries[ 11],s odium-ion batteries [12] and biosensors [13] ascribed to its low cost, structural flexibility, high theoretical specificc apacitance, great redoxa ctivity, durability and good catalytic activity.C o 3 O 4 is aP -type semiconductor with directb and gap of 1.5 eV and 2.19 eV [14].B ased on its structural feasibility,s everal nano structures includingr ods [15],t ubes [16],w ires [17],r ing [18], bubbles [19] etc. have been prepared throughv arious methods. However, simple and ecofriendly approaches are highly desirable for the synthesis of nanomaterials [20].H erein, we have prepared Co 3 O 4 nanohexagons using ab iomolecule ascorbic acid as reducing and capping agent. Recently,C o 3 O 4 and its compositesh ave been prepareda nd used for the fabrication of sensors and biosensors [21].M ost of the fabricated Co 3 O 4 based nanocomposite sensors are used for the determination of biomolecules like glucose and hydrogenp eroxide [13,22].T o increase the sensitivity of fabricated Co 3 O 4 modified glassy carbon electrode,r esearchers have focused on the preparation and fabrication of graphene based Co 3 O 4 sensors [21,23].H igh surface area, good conductivity are the main advantages for choosing graphene as as upporting mat relative to other carbon materials such as carbon Abstract:T his work presents as imple green approachf or the chemicals ynthesis of cobalt oxide nano hexagons (Co 3 O 4 NHs) with an average size of 160 AE 40 nm incorporatedg raphene na...

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“…The changed GCE was converted to an electrolytic solution with a pH of 5. [77] To produce AgNPs/β-CD-rGO nanocomposite, the solution was electrochemically reduced 10 times between 0 and 1.3 V. [78,79]…”

Section: Synthesis and Fabrication Of β-Cd-rgo/agnps Modified Electrodementioning

confidence: 99%

β‐Cyclodextrin‐Based Nanocomposite Derivatives: State of the Art in Synthesis, Characterization and Application in Molecular Recognition

Tarannum

Kumar

2022

ChemistrySelect

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This review describes the synthesis of nanocomposite derivatives based on β‐cyclodextrin (β‐CD) using silver nanoparticles (NPs), gold NPs, magnetic NPs, carbon nanotubes, nanosheets, carbon dots and graphene oxide NPs. These nanocomposites were prepared by green synthesis method, chemical method, reduction method, thermal reduction, ultrasonication method and hydrothermal method. β‐CD is cyclic oligosaccharide consisting of seven glucose units linked by 1,4‐α‐glycosidic bonds. Its external surface is hydrophilic due to the substantial hydroxyl groups, and the interior is hydrophobic. β‐CD are useful in nanocomposites and metallic NPs because they provide nanoplatforms for biocompatibility. β‐CD is commonly used to change NPs because of their excellent biocompatibility, amphipathic properties and for enhancing the morphological and chemical features of nanocomposites. Thus, nanostructured materials based on β‐CD may enhance the potential for molecular recognition property which is a natural phenomenon and fundamentally important in chemistry and biology. The most important area in molecular recognition research is design and synthesis of model receptors (hosts) to recognize substrates (guests) of biochemical significance to mimic biological events. Because NPs have a high surface‐to‐volume ratio when combined with molecularly imprinted polymers (MIPs). This review briefs the application and characterizations of β‐CD based nanocomposites derivatives in molecular recognition.

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Electrochemical Synthesis of β‐Cyclodextrin Functionalized Silver Nanoparticles and Reduced Graphene Oxide Composite for the Determination of Hydrazine

Cited by 20 publications

References 43 publications

Preparation of gallic acid functionalized polyvinyl alcohol/β‐cyclodextrin‐silver nanoparticles cast film as an antimicrobial and antioxidant agent

Preparation of gallic acid functionalized polyvinyl alcohol/β‐cyclodextrin‐silver nanoparticles cast film as an antimicrobial and antioxidant agent

Facile Synthesis of Graphene/Cobalt Oxide Nanohexagons for the Selective Detection of Dopamine

β‐Cyclodextrin‐Based Nanocomposite Derivatives: State of the Art in Synthesis, Characterization and Application in Molecular Recognition

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