Highly oriented nanoplates of layered double hydroxides as an ultra slow release system

The current research aims to introduce Layered Double Hydroxides (LDH) as nanomaterials to be used in agriculture, with particular reference to its use as storage and slow release matrix of nutrients and agrochemicals for plant growing. Structural characteristics, main properties, synthesis methods and characterization of LDH were covered in this study. Moreover, some literature data have been reported to demonstrate their potential for storage and slow release of nitrate, phosphate, agrochemicals, besides as being used as adsorbent for the wastewater treatment. This research aims to expand, in near future, the investigation field on these materials, with application in agriculture, increasing the interface between chemistry and agronomy.

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Fabrication of step-by-step drug release system both sensitive to magnetic field and temperature based on layered double hydroxides and PNIPAM

Nanotechnology ◽

10.1088/1361-6528/aaf095 ◽

2018 ◽

Vol 30 (5) ◽

pp. 055103 ◽

Cited By ~ 3

Author(s):

Fengzhu Lv ◽

Chong Li ◽

Yong Ma ◽

Zhengle Sun ◽

Rui Li ◽

...

Keyword(s):

Magnetic Field ◽

Drug Release ◽

Layered Double Hydroxides ◽

Release System ◽

Drug Release System ◽

Double Hydroxides

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The effect of an intracisternal nimodipine slow-release system on cerebral vasospasm after experimental subarachnoid haemorrhage in the rat

Cerebral Vasospasm - Acta Neurochirurgica Supplementum ◽

10.1007/978-3-211-75718-5_20 ◽

2008 ◽

pp. 103-107 ◽

Cited By ~ 1

Author(s):

D. Hänggi ◽

B. Turowski ◽

J. Perrin ◽

M. Rapp ◽

J. Liersch ◽

...

Keyword(s):

Subarachnoid Haemorrhage ◽

Cerebral Vasospasm ◽

Slow Release ◽

Release System ◽

Experimental Subarachnoid Haemorrhage ◽

Slow Release System

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Layered Double Hydroxides as Slow-Release Fertilizer Compounds for the Micronutrient Molybdenum

Journal of Agricultural and Food Chemistry ◽

10.1021/acs.jafc.1c06056 ◽

2021 ◽

Author(s):

Maarten Everaert ◽

Erik Smolders ◽

Mike J. McLaughlin ◽

Ivan Andelkovic ◽

Simon Smolders ◽

...

Keyword(s):

Layered Double Hydroxides ◽

Slow Release ◽

Slow Release Fertilizer ◽

Double Hydroxides

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Potential Sustainable Slow-Release Fertilizers Obtained by Mechanochemical Activation of MgAl and MgFe Layered Double Hydroxides and K2HPO4

Nanomaterials ◽

10.3390/nano9020183 ◽

2019 ◽

Vol 9 (2) ◽

pp. 183 ◽

Cited By ~ 4

Author(s):

Roger Borges ◽

Fernando Wypych ◽

Elodie Petit ◽

Claude Forano ◽

Vanessa Prevot

Keyword(s):

Layered Double Hydroxides ◽

Slow Release ◽

Mechanochemical Activation ◽

Molar Ratio ◽

X Ray ◽

Dipotassium Hydrogen Phosphate ◽

Before And After ◽

Noticeable Improvement ◽

Slow Release Fertilizers ◽

Double Hydroxides

This study describes the behavior of potential slow-release fertilizers (SRF), prepared by the mechanochemical activation of calcined Mg2Al-CO3 or Mg2Fe-CO3 layered double hydroxides (LDH) mixed with dipotassium hydrogen phosphate (K2HPO4). The effects of LDH thermal treatment on P/K release behavior were investigated. Characterizations of the inorganic composites before and after release experiments combined X-Ray diffraction (XRD), Fourier-transform infra-red spectroscopy (FTIR), solid-state nuclear magnetic resonance (NMR), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The best release profile (<75% in 28 days and at least 75% release) was obtained for MgAl/K2HPO4 (9 h milling, 2:1 molar ratio, MR). Compared to readily used K2HPO4, milling orthophosphate into LDH matrices decreases its solubility and slows down its release, with 60% and 5.4% release after 168 h for MgAl/K2HPO4 and MgFe/K2HPO4 composites, respectively. Mechanochemical addition of carboxymethylcellulose to the LDH/K2HPO4 composites leads to a noticeable improvement of P release properties.

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