Carbon and fullerene nanomaterials in plant system

Husen, Azamal; Siddiqi, K. S.

doi:10.1186/1477-3155-12-16

Cited by 257 publications

(120 citation statements)

References 69 publications

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“…To investigate the uptake, transport, and distribution of nanoparticles in plants, and the impact of nanomaterials on plant function, the first key step is to deliver the nanoparticles into plants in vivo [45]. Uptake and accumulation of carbon nanotubes along with fullerenes and fullerol in edible and crop plants were previously reported [46]. The penetration of CNTs into the plant system is inversely proportional to its size.…”

Section: N-cds' Insertion Into Leaf Cellsmentioning

confidence: 99%

Blue light-emitting carbon dots (CDs) from a milk protein and their interaction with Spinacia oleracea leaf cells

Bajpai

D'Souza²,

Suhail

2019

Int Nano Lett

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The milk protein casein (Cas) has been employed as carbon resource material to synthesize nitrogen-doped carbon dots (N-CDs) via microwave exposure. The dots, when exposed to UV light, produced blue fluorescence. The N-CDs were characterized by ultra violet (UV) spectroscopy, Fourier transformation infrared spectroscopy, X-ray diffraction (XRD), dynamic light scattering analysis, fluorescent microscopy (FM), and transmission electron microscopy (TEM). The XRD analysis revealed a broad peak at 2θ = 20°, thus indicating the turbostratic carbon phase. TEM analysis and particle size distribution curve revealed that nearly, 85% of the particles had diameter below 10 nm and the particles had spherical geometry. The HRTEM analysis revealed that carbon dots exhibited lattice fringes with a d-spacing of 0.21 nm, corresponding to the (100) plane lattice of graphite. The fluorescence spectral studies indicated a red shift in the emission peak from 420 to 450 nm as the excitation wavelength increased from 300 to 340 nm. The zeta potential of particles was found to be -11.3 mV. Finally, impregnation of N-CDs was studied in Spinacia oleracea leaf. It was observed that as the concentration of N-CDs' solution increased, percent insertion (PI) also increased, but the time required for maximal insertion decreased with increasing concentrations of N-CDs in the feed solutions. In the carbon dots' solution with a concentration of 200 ppm, maximum percent insertion (MPI) was obtained after 80 min. However, with the increasing concentration of N-CDs in the feed solutions, time of getting MPI reduced, i.e., in 600 ppm, it was 30 min, and in 800 ppm, it was 10 min.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Section: N-cds' Insertion Into Leaf Cellsmentioning

confidence: 99%

Blue light-emitting carbon dots (CDs) from a milk protein and their interaction with Spinacia oleracea leaf cells

Bajpai

D'Souza²,

Suhail

2019

Int Nano Lett

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“…The effect of carbon nanomaterials of varying sizes and concentrations on different parts of a variety of plants has been studied [44,46,148,166,177-182]. Multi-walled carbon nanotubes (MWCNTs) enhanced alfalfa and wheat germination and root elongation, but the particle uptake and translocation was insignificant [183].…”

Section: Reviewmentioning

confidence: 99%

Phytosynthesis of nanoparticles: concept, controversy and application

2014

Self Cite

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Nanotechnology is an exciting and powerful discipline of science; the altered properties of which have offered many new and profitable products and applications. Agriculture, food and medicine sector industries have been investing more in nanotechnology research. Plants or their extracts provide a biological synthesis route of several metallic nanoparticles which is more eco-friendly and allows a controlled synthesis with well-defined size and shape. The rapid drug delivery in the presence of a carrier is a recent development to treat patients with nanoparticles of certain metals. The engineered nanoparticles are more useful in increasing the crop production, although this issue is still in infancy. This is simply due to the unprecedented and unforeseen health hazard and environmental concern. The well-known metal ions such as zinc, iron and copper are essential constituents of several enzymes found in the human system even though the indiscriminate use of similar other metal nanoparticle in food and medicine without clinical trial is not advisable. This review is intended to describe the novel phytosynthesis of metal and metal oxide nanoparticles with regard to their shape, size, structure and diverse application in almost all fields of medicine, agriculture and technology. We have also emphasized the concept and controversial mechanism of green synthesis of nanoparticles.

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“…Recent reviews have addressed toxic and stimulating NP effects, summarized NP concentrations found in plants, and discussed how plants are exposed to NPs in soil, water and air (Gardea-Torresdey et al, 2003;Handy et al, 2008a;Husen & Siddiqi, 2014;Jackson et al, 2013;Klaine et al, 2008;Ma et al, 2010a;Miralles et al, 2012a;Navarro et al, 2008;von Moos et al, 2014). Central, not recently systematically addressed topics are the actual barriers, pathways and transport processes that NPs face in plants.…”

Section: Introductionmentioning

confidence: 98%

Barriers, pathways and processes for uptake, translocation and accumulation of nanomaterials in plants – Critical review

et al. 2015

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Uptake, transport and toxicity of engineered nanomaterials (ENMs) into plant cells are complex processes that are currently still not well understood. Parts of this problem are the multifaceted plant anatomy, and analytical challenges to visualize and quantify ENMs in plants. We critically reviewed the currently known ENM uptake, translocation, and accumulation processes in plants. A vast number of studies showed uptake, clogging, or translocation in the apoplast of plants, most notably of nanoparticles with diameters much larger than the commonly assumed size exclusion limit of the cell walls of ∼5-20 nm. Plants that tended to translocate less ENMs were those with low transpiration, drought-tolerance, tough cell wall architecture, and tall growth. In the absence of toxicity, accumulation was often linearly proportional to exposure concentration. Further important factors strongly affecting ENM internalization are the cell wall composition, mucilage, symbiotic microorganisms (mycorrhiza), the absence of a cuticle (submerged plants) and stomata aperture. Mostly unexplored are the roles of root hairs, leaf repellency, pit membrane porosity, xylem segmentation, wounding, lateral roots, nodes, the Casparian band, hydathodes, lenticels and trichomes. The next steps towards a realistic risk assessment of nanoparticles in plants are to measure ENM uptake rates, the size exclusion limit of the apoplast and to unravel plant physiological features favoring uptake.

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Carbon and fullerene nanomaterials in plant system

Cited by 257 publications

References 69 publications

Blue light-emitting carbon dots (CDs) from a milk protein and their interaction with Spinacia oleracea leaf cells

Blue light-emitting carbon dots (CDs) from a milk protein and their interaction with Spinacia oleracea leaf cells

Phytosynthesis of nanoparticles: concept, controversy and application

Barriers, pathways and processes for uptake, translocation and accumulation of nanomaterials in plants – Critical review

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