Zinc-Supported Multiwalled Carbon Nanotube Nanocomposite

A Synergism to Micronutrient Release and a Smart Distributor to Promote the Growth of Onion Seeds in Arid Conditions

Vinay Kumar, Divya Sachdev, Renu Pasricha, Priyanka H. Maheshwari, Neetu Kumra Taneja

Research output: Contribution to journalArticle

Abstract

In the current scenario, nanotechnological applications in the agriculture sector showing potential impacts on the improvement of plant growth in terms of protection and safety are at a very nascent stage. The present study deals with the synergistic role of zinc (Zn) and multiwalled carbon nanotubes (MWCNTs) synthesized as a zinc oxide (ZnO)/MWCNT nanocomposite, a prospective applicant to modulate the micronutrient supply and enhance the growth of onion seeds, thereby replacing harmful, unsafe chemical fertilizers. To the best of our knowledge, this is the first report wherein MWCNTs have been envisaged as a micronutrient distributor and a nutrient stabilizer enhancing the growth of onion plant under arid conditions. The growth trend of onion seeds was evaluated in an aqueous medium with varied concentrations of (i) MWCNTs, (ii) zinc oxide nanoparticles, and (iii) ZnO/MWCNT nanocomposites. ZnO/MWCNT nanocomposites with 15 μg/mL concentration displayed the best seedling growth with the maximum number of cells in telophase. A significant growth trend with increased concentration of ZnO/MWCNTs displayed no negative impact on plant growth in contrast to that with the use of MWCNTs. The synergistic impact of Zn nanoparticles and MWCNTs in ZnO/MWCNT nanocomposites on the rate of germination was explained via a mechanism supported by scanning transmission electron microscopy.

Original languageEnglish (US)
Pages (from-to)36733-36745
Number of pages13
JournalACS Applied Materials and Interfaces
Volume10
Issue number43
DOIs
StatePublished - Oct 31 2018

Fingerprint

Multiwalled carbon nanotubes (MWCN)
Micronutrients
Seed
Zinc
Nanocomposites
Zinc Oxide
Zinc oxide
Nanoparticles
Fertilizers
Agriculture
Nutrients
Transmission electron microscopy
Scanning electron microscopy

Keywords

  • epifluorescence
  • multiwalled carbon nanotubes
  • onion seeds
  • Raman spectroscopy
  • scanning transmission electron microscopy
  • water flux

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Zinc-Supported Multiwalled Carbon Nanotube Nanocomposite : A Synergism to Micronutrient Release and a Smart Distributor to Promote the Growth of Onion Seeds in Arid Conditions. / Kumar, Vinay; Sachdev, Divya; Pasricha, Renu; Maheshwari, Priyanka H.; Taneja, Neetu Kumra.

In: ACS Applied Materials and Interfaces, Vol. 10, No. 43, 31.10.2018, p. 36733-36745.

Research output: Contribution to journalArticle

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