An introduction to nanoparticles and nanotechnology

Benelmekki, Maria

doi:10.1088/978-1-6270-5469-0ch1

Cited by 36 publications

(24 citation statements)

References 26 publications

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“…Unfortunately, MNPs obtained by this way were characterized by a high polydispersity index [ 35 ]. To prevent particle–particle agglomeration or sedimentation, Papell finally added oleic acid as a dispersing agent [ 36 ]. Subsequent works on this subject published by Sugimoto and Matijević concerned the chemical preparation of monodisperse magnetic nanomaterial of narrow size distribution, with mean diameters ranging between 0.03 and 1.1 μm.…”

Section: Synthesis Of Magnetite Nanoparticles—chemical Methodsmentioning

confidence: 99%

Polymer-Coated Magnetite Nanoparticles for Protein Immobilization

et al. 2021

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Since their discovery, magnetic nanoparticles (MNPs) have become materials with great potential, especially considering the applications of biomedical sciences. A series of works on the preparation, characterization, and application of MNPs has shown that the biological activity of such materials depends on their size, shape, core, and shell nature. Some of the most commonly used MNPs are those based on a magnetite core. On the other hand, synthetic biopolymers are used as a protective surface coating for these nanoparticles. This review describes the advances in the field of polymer-coated MNPs for protein immobilization over the past decade. General methods of MNP preparation and protein immobilization are presented. The most extensive section of this article discusses the latest work on the use of polymer-coated MNPs for the physical and chemical immobilization of three types of proteins: enzymes, antibodies, and serum proteins. Where possible, the effectiveness of the immobilization and the activity and use of the immobilized protein are reported. Finally, the information available in the peer-reviewed literature and the application perspectives for the MNP-immobilized protein systems are summarized as well.

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Section: Synthesis Of Magnetite Nanoparticles—chemical Methodsmentioning

confidence: 99%

Polymer-Coated Magnetite Nanoparticles for Protein Immobilization

et al. 2021

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“…In the last few decades, nanotechnology has been considered a projecting technology with plentiful applications (Marchiol et al, 2020). A wide range of materials has been used to create nanoparticles like metal oxides, ceramics, magnetic materials, semiconductor, quantum dots, lipids, polymers (synthetic or natural), dendrimers and emulsions (Benelmekki, 2015;Kumar et al, 2018;Ruiz-Cañas et al, 2020). Accordingly, several nanotechnology applications have been developed and tested as potential agrochemicals such as bactericides, fungicides, growth regulators and fertilizers (Peters et al, 2014;Pestovsky and Martínez-Antonio, 2017).…”

Section: Introductionmentioning

confidence: 99%

Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands

Mejías

Salazar

Amaro

et al. 2021

Front. Environ. Sci.

108

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Nitrogen (N) is the most critical element limiting agricultural production at a global scale. Despite many efforts, the N use efficiency (NUE) in agriculture remains in a range of less than 50%. Reaching targeted crop yields has resulted in N overuse, which is an economic and environmental concern worldwide. The continuous exploration of innovative solutions has led to the synthesis of novel nanomaterials, resulting in a powerful tool for the development of new technological products. Nanofertilizers are one of the most promising engineered materials that are being tested, either for soil or foliar applications. Encouraging results have been obtained using nanofertilizers in different plant species, however, limited information has been reported about its use in grasslands. Commonly, N is applied to grassland soils as granular fertilizers, which may result in significant losses via surface runoff or leaching, ammonia (NH3) volatilization and N oxides (N2O, NO, NOx) emissions. Nitrogen nanofertilizers are expected to increase NUE by improving the effectiveness of N delivery to plants and reducing N losses to the environment. Information on the efficiency of the use of N nanofertilizers in grasslands species is scarce and the application strategies that can be used to avoid N losses are poorly understood. New scenarios of increasing economic and environmental constraints may represent an opportunity for N nanofertilizers application in grasslands. This article reviews its potential use as an innovative approach to improve NUE and reduce N losses to the wider environment, analyzing potential shortcomings and future considerations for animal food chains.

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“…Nanoparticles are an important type of nanomaterial which opens the gate to a world of fantastic structures and novel properties. [1][2][3][4] In the past two decades, it has been well realized that the novel properties of nanoparticles mostly originate from their size effect and large free surfaces. 1,[5][6][7] Therefore, researchers have spent great effort to develop fabrication methods to obtain nanoparticles with controllable size, shape, phase and elemental distribution.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4] In the past two decades, it has been well realized that the novel properties of nanoparticles mostly originate from their size effect and large free surfaces. 1,[5][6][7] Therefore, researchers have spent great effort to develop fabrication methods to obtain nanoparticles with controllable size, shape, phase and elemental distribution. 4,[8][9][10][11][12][13][14][15] Among all the methods, chemical synthesis and gas-phase deposition are two outstanding ways as they show signicant efficiency, controllability, and exibility on the design and tuning of the nanoparticle structures.…”

Section: Introductionmentioning

confidence: 99%