Nanobiotechnology approach using plant rooting hormone synthesized silver nanoparticle as “nanobullets” for the dynamic applications in horticulture – An in vitro and ex vitro study

Thangavelu, Raja Muthuramalingam; Gunasekaran, Dharanivasan; Jesse, Michael Immanuel; Riyaz, S.U. Mohammed; Sundarajan, Deepan; Kathiravan, K.

doi:10.1016/j.arabjc.2016.09.022

Cited by 61 publications

(26 citation statements)

References 27 publications

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“…Likewise, the oxidation of Ag + to Ag 2 O is observed, especially in 0.1 ml of the cochineal extract sample in which the amount of reductant to AgNO 3 ratio was smaller. ese results show that a higher volume of cochineal is required to avoid the formation of Ag 2 O and ascertain the reduction of AgNO 3 with reasonable reaction kinetics [29,30]. e reduction of AgNO 3 is probably due to electron transfer from carboxyl/hydroxyl groups of cochineal to Ag + resulting in stable AgNPs.…”

Section: Cyclic Voltammetry Characterizationmentioning

confidence: 92%

Improvement of Cochineal Extract (Dactylopius coccus Costa) Properties Based on the Green Synthesis of Silver Nanoparticles for Application in Organic Devices

Stael

Parra-Cruz

Naranjo

et al. 2018

Journal of Nanotechnology

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e UV-Vis absorption and conductivity properties of the organic sample cochineal (Dactylopius coccus Costa) were modified by using it as a reducing agent in the biosynthesis of silver nanoparticles. is was done in a straightforward way in order to allow its possible application in organic devices. e biosynthesized solution exhibited a hybrid material with a UV-Vis absorbance range from 205 to 650 nm. e sizes of silver nanoparticles of the hybrid material were between 5 and 10 nm. X-ray diffraction (XRD) revealed silver structures, when samples were dried at 100°C. At 40°C, the structures detected were chlorargyrite (AgCl) and silver oxide (Ag 2 O). e nucleation and subsequent growth of the hybrid thin film on the substrates indicated an increase of clusters and roughness in comparison to thin films made solely from cochineal. e thin films of hybrid materials showed an improvement of 40% in their electrical potential. e stability at room temperature demonstrated that the hybrid material could be useful as a potential candidate for photoactive thin films in organic devices.

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Section: Cyclic Voltammetry Characterizationmentioning

confidence: 92%

Improvement of Cochineal Extract (Dactylopius coccus Costa) Properties Based on the Green Synthesis of Silver Nanoparticles for Application in Organic Devices

Stael

Parra-Cruz

Naranjo

et al. 2018

Journal of Nanotechnology

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“…In the agriculture industry, they are increasingly being used as components of new fertilizers [3], plant protection products [4], herbicides [5], and preparations for prolonging cut flower durability [6]. Recently, nanoparticles and nanomaterials have been suggested as potential biostimulators that might improve plant propagation and growth [7,8] and improve plant resistance to stress [9,10]. Using nanoparticles could bring numerous benefits to agriculture and horticulture, but also involves some risks related to their not yet fully recognized environmental impacts [11].…”

Section: Introductionmentioning

confidence: 99%

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

et al. 2019

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Nanoparticles exhibit unique biological activities and may serve as novel plant growth stimulators. This research consisted of a two-year pot experiment designed to find out if silver nanoparticles (AgNPs) might be used in the cultivation of Oriental lilies. In the first year, we evaluated the effects of various concentrations of AgNPs (0, 25, 50, 100, and 150 ppm) and their application methods (pre-planting bulb soaks, foliar sprays, and substrate drenches) on the growth and flowering of Lilium cv. Mona Lisa. In the second year, we evaluated the effects of soaking the bulbs of cv. Little John in the same concentration of AgNP solution on plant morphological features, leaf content of photosynthetic pigments, basic macronutrients, and complex biomolecules with the use of the Fourier-transform infrared spectroscopy (FTIR). Soaking the bulbs in a nanoparticle solution turned out to be the most effective strategy for growth and flowering promotion. AgNPs stimulated plant growth, as manifested by enhanced accumulation of leaf and bulb biomass and accelerated flowering. Moreover, plants treated with silver nanoparticles showed higher leaf greenness index, formed more flowers, and flowered longer. At 100 ppm AgNPs, the leaves accumulated the highest content of chlorophyll a, chlorophyll b, and carotenoids, and were the richest in potassium, calcium, and sulfur. The FTIR spectra did not show any changes in absorbance intensity and chemical composition in the leaves from AgNP-treated bulbs.

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“…AgNPs and appropriate plant hormones (IAA, IBA) appear to result in significantly better results. AgNPs probably inhibit soil pathogens and thus roots may form [86]. In wetland plant Bacopa monnieri , which is a very fast-growing species in this ecosystem, an increase in protein and sugar levels were observed with lower levels of total phenol content, CAT and POX activities, which is probably related to significant silver ion toxicity [40].…”

Section: Resultsmentioning

confidence: 99%

An Assessment of the Effect of Green Synthesized Silver Nanoparticles Using Sage Leaves (Salvia officinalis L.) on Germinated Plants of Maize (Zea mays L.)

et al. 2019

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AgNPs have attracted considerable attention in many applications including industrial use, and their antibacterial properties have been widely investigated. Due to the green synthesis process employed, the nanoparticle surface can be coated with molecules with biologically important characteristics. It has been reported that increased use of nanoparticles elevates the risk of their release into the environment. However, little is known about the behaviour of AgNPs in the eco-environment. In this study, the effect of green synthesized AgNPs on germinated plants of maize was examined. The effects on germination, basic growth and physiological parameters of the plants were monitored. Moreover, the effect of AgNPs was compared with that of Ag(I) ions in the form of AgNO3 solution. It was found that the growth inhibition of the above-ground parts of plants was about 40%, and AgNPs exhibited a significant effect on photosynthetic pigments. Significant differences in the following parameters were observed: weights of the caryopses and fresh weight (FW) of primary roots after 96 h of exposure to Ag(I) ions and AgNPs compared to the control and between Ag compounds. In addition, the coefficient of velocity of germination (CVG) between the control and the AgNPs varied and that between the Ag(I) ions and AgNPs was also different. Phytotoxicity was proved in the following sequence: control < AgNPs < Ag(I) ions.

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Nanobiotechnology approach using plant rooting hormone synthesized silver nanoparticle as “nanobullets” for the dynamic applications in horticulture – An in vitro and ex vitro study

Cited by 61 publications

References 27 publications

Improvement of Cochineal Extract (Dactylopius coccus Costa) Properties Based on the Green Synthesis of Silver Nanoparticles for Application in Organic Devices

Improvement of Cochineal Extract (Dactylopius coccus Costa) Properties Based on the Green Synthesis of Silver Nanoparticles for Application in Organic Devices

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

An Assessment of the Effect of Green Synthesized Silver Nanoparticles Using Sage Leaves (Salvia officinalis L.) on Germinated Plants of Maize (Zea mays L.)

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