Size-dependent catalytic property of gold nanoparticle mediated by Justicia adhatoda leaf extract

Latha, D.; Periasamy, P.; Gnanamoorthy, G.; Munusamy, S.; Sampurnam, S.; Chinnasamy, Arulvasu; Narayanan, Vijaykrishnan

doi:10.1007/s42452-018-0148-y

Cited by 23 publications

(14 citation statements)

References 75 publications

(76 reference statements)

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“…Further, he pointed out that nanofluid are best candidates for heat and mass transfer when these are compared with the other fluids. For applications of nanofluid, see [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Soret–Dufour and radiative aspects in hydromagnetized nanofluid flow in stratified porous medium

et al. 2019

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The numerical computations of Soret-Dufour aspects in hydromagnetics nanofluid flow in thermal stratified porous medium under radiated chemical reaction are developed. The unique similarity transformations lead to reduce the partial differential system into expressions of ordinary ones. Keller-box approach is adopted to express the numeric solutions. The impacts of embedded flow parameters on the different flow profiles signifying velocity, concentration and temperature of nanofluid are discussed via graphs. The values of −θ � (0) , − � (0) and −f �� (0) in relation with the variation in sundry physical parameters are examined through numerical benchmarks. The numerical results in special cases agreed with published work showing the validity of formulated problem. It can be seen that the temperature profile enhances for cumulative values of Brownian motion and thermophoretic impacts. In addition, the enhancement in Dufour factor declines the temperature profile. On contrast, larger the Soret parameter results an increase in concentration profile. On the other hand, chemical reaction shows direct relation with temperature profile.

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“…Further, he pointed out that nanofluid are best candidates for heat and mass transfer when these are compared with the other fluids. For applications of nanofluid, see [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Soret–Dufour and radiative aspects in hydromagnetized nanofluid flow in stratified porous medium

et al. 2019

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“…Additionally unique electrochemical features and high conductivity of AgNPs identifies AgNPs as a good candidate for selective and sensitive monitoring of biomolecules and pharmaceuticals [20][21][22]. Earlier reports have shown that size, shape, and surface features are critical in deciding performance of their so far mentioned catalytic and sensing applications [21][22][23][24][25]. It is reported that the cytotoxicity of AgNPs against diseases like HIV and cancer are also size dependent [2,26,27].…”

Section: Introductionmentioning

confidence: 99%

Novel green synthesis of silver nanoparticles using clammy cherry (Cordia obliqua Willd) fruit extract and investigation on its catalytic and antimicrobial properties

et al. 2019

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In this study, highly monodispersed, exceptionally stable, spherical silver nanoparticles (AgNPs) were successfully synthesized by the microwave assisted rapid and cost-effective green method. Aqueous extract of clammy cherry (Cordia obliqua Willd) fruit was used as the green reductant, and capping agent for the synthesis of AgNPs and the effect of different synthesis parameters on the optical properties of the synthesized AgNPs was also studied. The characterization of synthesized AgNPs by Fourier transform infrared spectroscopy, X-ray diffraction studies, UV-visible spectroscopy, scanning electron microscopy and transmission electron microscopy (TEM) revealed the formation of small AgNPs with narrow size distribution. TEM studies corroborated that the AgNPs are highly crystalline and spherical with an average diameter of 7.13 nm. The cyclic voltammetry profile of AgNPs modified electrode in NaOH depicted prominent redox peaks evidencing an impressive electrochemical response. The AgNPs manifested high catalytic activity towards reduction of methyl orange and rhodamine blue with apparent rate constant 0.3038 min −1 and 0.1542 min −1 respectively. Additionally, the prepared AgNPs exhibited strong antibacterial efficacy against the tested microbes.

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“…Examples of this can be found in recent studies applying these principles, which do not take the wider sustainable development goals such as the consequences for ecosystems or livelihoods into consideration, and can thus not be considered to practice sustainable design (e.g. [13,14]). Gopalraj and Kärki [15] do examine the environmental and economic effects of a material but look at recycling and closing the loop to stimulate the circular economy.…”

Section: Literature Leading To Questionnaire Frameworkmentioning

confidence: 99%

Sustainable life cycle design aspects: how aware are material scientists?

Vink

2020

SN Appl. Sci.

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When developing new materials many aspects of sustainability are relevant, especially when the ultimate goal is mass production. More efficient energy storage and transmission are important parts of a larger product life cycle design and the confines of the circular economy, including environmental and social concerns. For example, due to environmental, geopolitical, and health concerns, it is important to choose materials that are easily accessible, as opposed to materials requiring complicated extraction, storage, and transportation methods. Equally important is the abundance of the material, as the mass production and use of a product are not sustainable if its raw components are scarce. This requires material scientists to be aware of how their design affects the later life cycle stages of the materials they develop. Very few studies cover whether material scientists take these type of questions into consideration. To resolve this, material scientists were questioned on various sustainability aspects. Results show that most of the questioned scientists have little to no awareness of what effects mass production of their developed materials might have regarding greenhouse gases or the workforce, or what their material's recyclability or longevity might be. The results indicate that these questioned material scientists are not fully aware of several imperative sustainability aspects and do not fully consider the impacts of their designs. To increase instilling and evaluating awareness of sustainability aspects on life cycle design, two improvements are: increasing sustainability education by lifelong learning, and adding sustainability concerns as a required component to grants and funding.

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Size-dependent catalytic property of gold nanoparticle mediated by Justicia adhatoda leaf extract

Cited by 23 publications

References 75 publications

Soret–Dufour and radiative aspects in hydromagnetized nanofluid flow in stratified porous medium

Soret–Dufour and radiative aspects in hydromagnetized nanofluid flow in stratified porous medium

Novel green synthesis of silver nanoparticles using clammy cherry (Cordia obliqua Willd) fruit extract and investigation on its catalytic and antimicrobial properties

Sustainable life cycle design aspects: how aware are material scientists?

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