Plant nutrient coated nanoparticles and methods for their preparation and use

26 Pages·2013·3.49 MB·English

US 20130219979A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2013/0219979 A1
Deb (43) Pub. Date: Aug. 29, 2013
(54) PLANT NUTRIENT COATED (52) US. Cl.
NANOPARTICLES AND METHODS FOR CPC ...................................... .. C05D 9/02 (2013.01)
THEIR PREPARATION AND USE USPC ...................................... .. 71/27; 71/31; 71/63
(75) Inventor: Nilanjan Deb, West Bengal (IN)
(73) Assignee: UNIVERSITY OF CALCUTTA, West (57) ABSTRACT
Bengal (IN)
(21) Appl. No.: 13/825,661 Embodiments described herein provide for nanofertiliZers
having at least one plant nutrient coated onto a metal nano
(22) PCT Filed: Aug. 7, 2012 particle. Some embodiments provide for a method of making
a nanofertiliZer including providing a metal nanoparticle and
(86) PCT No.: PCT/IB12/01511
coating the metal nanoparticle With at least one plant nutrient
§ 371 (0X1)’ or precursor thereof. In some embodiments, a method of
(2), (4) Date: Mar. 22, 2013 making a nanofertilizer may include mixing a metal salt and
a plant nutrient in an aqueous medium to form a solution and
(30) Foreign Application Priority Data
adding a reducing agent to the solution to form a coated metal
nanoparticle. Some embodiments provide for a boron nanof
Feb. 15,2012 (IN) ........................... .. 154/KOL/2012
ertiliZer and methods of making the same. Some embodi
Publication Classi?cation ments provide for a method of treating a plant nutrient de?
ciency, such as, for example, a boron de?ciency. Some
(51) Int. Cl. embodiments also provide for a kit for making a plant nutrient
C05D 9/02 (2006.01) coated nanoparticle.
Patent Application Publication Aug. 29, 2013 Sheet 1 0f 17 US 2013/021997 A1
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Patent Application Publication Aug. 29, 2013 Sheet 2 0f 17 US 2013/021997 A1
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Patent Application Publication Aug. 29, 2013 Sheet 3 0f 17 US 2013/0219979 A1
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Patent Application Publication Aug. 29, 2013 Sheet 4 0f 17 US 2013/0219979 A1
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Patent Application Publication Aug. 29, 2013 Sheet 5 0f 17 US 2013/0219979 A1
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Patent Application Publication Aug. 29, 2013 Sheet 6 0f 17 US 2013/0219979 A1
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