Engineered chitosan based nanomaterials: Bioactivities, mechanisms and perspectives in plant protection and growth

R. V. Kumaraswamy, Sarita Kumari, Ram Chandra Choudhary, Ajay Pal, Ramesh Raliya, Pratim Biswas, Vinod Saharan

Research output: Contribution to journalReview articlepeer-review

74 Scopus citations


Excessive use of agrochemicals for enhancing crop production and its protection posed environmental and health concern. Integration of advanced technology is required to realize the concept of precision agriculture by minimizing the input of pesticides and fertilizers per unit while improving the crop productivity. Notably, chitosan based biodegradable nanomaterials (NMs) including nanoparticles, nanogels and nanocomposites have eventually proceeded as a key choice in agriculture due to their inimitable properties like antimicrobial and plant growth promoting activities. The foreseeable role of chitosan based NMs in plants might be in achieving sustainable plant growth through boosting the intrinsic potential of plants. In-spite of the fact that chitosan based NMs abode immense biological activities in plants, these materials have not yet been widely adopted in agriculture due to poor understanding of their bioactivity and modes of action towards pathogenic microbes and in plant protection and growth. To expedite the anticipated claims of chitosan based NMs, it is imperative to line up all the possible bioactivities which denote for sustainable agriculture. Herein, we have highlighted, in-depth, various chitosan based NMs which have been used in plant growth and protection mainly against fungi, bacteria and viruses and have also explained their modes of action.

Original languageEnglish (US)
Pages (from-to)494-506
Number of pages13
JournalInternational Journal of Biological Macromolecules
StatePublished - Jul 1 2018
Externally publishedYes


  • Antimicrobial
  • Biodegradable
  • Chitosan
  • Nanomaterials
  • Plant defense
  • Sustainable agriculture

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Economics and Econometrics
  • Energy(all)


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