Mesoporous silica nanoparticles deliver DNA and chemicals into plants. Nat Nanotech 2:295-300

Nature Nanotechnology (Impact Factor: 34.05). 04/2007; 2(5):295-300. DOI: 10.1038/nnano.2007.108


Surface-functionalized silica nanoparticles can deliver DNA1, 2, 3, 4, 5, 6, 7, 8 and drugs9, 10, 11, 12, 13, 14, 15 into animal cells and tissues. However, their use in plants is limited by the cell wall present in plant cells. Here we show a honeycomb mesoporous silica nanoparticle (MSN) system with 3-nm pores that can transport DNA and chemicals into isolated plant cells and intact leaves. We loaded the MSN with the gene and its chemical inducer and capped the ends with gold nanoparticles to keep the molecules from leaching out. Uncapping the gold nanoparticles released the chemicals and triggered gene expression in the plants under controlled-release conditions. Further developments such as pore enlargement and multifunctionalization of these MSNs may offer new possibilities in target-specific delivery of proteins, nucleotides and chemicals in plant biotechnology.

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Available from: Francois J Torney,
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    • "NPs used for these purposes include calcium phosphate, carbon, silica, gold magnetite, strontium phosphate. Pore enlargement and multifunctionalization of mesoporous silica NPs could facilitate target-specific delivery of proteins, nucleotides and chemicals in plant biotechnology (Torney et al. 2007). effects of NPs on plant photosynthetic characteristics "

    Acta Biologica Szegediensis 10/2015; Volume 59(Suppl.2):225- 245.
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    • "Nanotechnology advancements in nutrition strategies for plants attempt to solve Nitrogen (N) losses via fertilizer application by introducing Multi-wall carbon nanotubes (MWNTs) as a carrier to improve nutrient uptake by plant cells (Torney et al., 2007; Gonzales-Melendi et al., 2008; Serag et al., 2011). Upon successful delivery into the cells, the absorption and utilization of N by the plant can be increased leading to enhanced plant growth. "

    Procedia - Social and Behavioral Sciences 07/2015; 195:315-323. DOI:10.1016/j.sbspro.2015.06.358
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    • "These NMs have served as the magic bullets for an efficient delivery system of genes (Pérez-de-Luque and Rubiales 2009). For example , Mesoporous nanosilica particles have been chemically coated and served as the gene carriers for their delivery into the tobacco and corn plants (Torney et al. 2007). These particles are absorbed through the cell wall and the target genes are efficiently delivered to the plant system in a non-toxic way. "
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    ABSTRACT: For the ever-increasing population of the world, an increasing demand for more and more food is required. To cope with this alarming situation, there is a dire need for sustainable agricultural production. In agriculture, management of optimum plant nutrients for sustainable crop production is the priority-based area of research. In this regard, much advancement in the area of plant nutrition has come forward and nano-nutrition is one the most interesting areas of research for sustainable agriculture production. Nanotechnology has revolutionized the world with tremendous advancements in many fields of science like engineering, biotechnology, analytical chemistry, and agriculture. Nano-nutrition is the application of nanotechnology for the provision of nano-sized nutrients for the crop production. Two sources of nanoparticles (NPs) have been used; biotic and abiotic. The abiotic form of nutrients or NPs is prepared from inorganic sources like salts but it is not safe because many of these are non-biodegradable. While the biotic ones are prepared from organic sources which are definitely the biodegradable and environment friendly. So, a few studies/attempts have been made in the field of nano-nutrition and a lot more are expected in the near future because this field of plant nutrition is sustainable and efficient one. Using nano-nutrition we can increase the efficiency of micro-as well as macronutrients of the plants. In this chapter, the focus has been made on the importance of nano-nutrition in the sustainable agricultural production and its future scenario so that it could be possible to apply this knowledge on a large scale without any concern regarding environment.
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