Special Issue "Advances in Janus Nanoparticles: Synthesis, Characterization and Applications"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: 30 November 2020.

Special Issue Editors

Dr. Aurélie Taguet
Website
Guest Editor
IMT Mines Alès, C2MA, Univ Montpellier, Ales, 30319, France
Interests: nanocomposites and polymer blends; natural fiber-based composites; rheology eology
Dr. Belkacem Otazaghine
Website
Guest Editor
IMT Mines Alès, C2MA, Univ Montpellier, Ales, 30319, France
Interests: chemical modification of nanoparticles and natural fibers; (bio)(nano)composites; fire behavior

Special Issue Information

Dear Colleagues,

Janus nanoparticles have attracted increasing attention in the past two decades in the field of nanoscience due to their interesting properties, for academic as well as for technological reasons. Janus nanoparticles (JNPs) are defined as amphiphilic colloid-sized particles with two regions of different surface chemical composition. Due to their anisotropic architecture, these objects have been used successfully for catalytic or sensing applications, to stabilize Pickering emulsions and for drug delivery or regenerative medicine. More recently, JNPs were used as a compatibilizer for immiscible polymer blends. There are still remaining questions regarding their synthesis and their potential applications. One main issue is the synthesis of JNPs with the ability to control their geometry and surface chemistry and to scale up their production at an industrial scale. Another issue is to characterize their role as a compatibilizer in polymer blends and to evaluate the influence of their interfacial localization for composites final properties.

Dr. Aurélie Taguet
Dr. Belkacem Otazaghine
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Janus nanoparticles
  • anisotropic functionalization
  • self-assembling
  • nanostructures
  • compatibilization
  • interface localization
  • microstructure
  • polymer blends

Published Papers (1 paper)

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Research

Open AccessArticle
Structural Properties of Janus Particles with Nano- and Mesoscale Anisotropy
Nanomaterials 2020, 10(5), 989; https://doi.org/10.3390/nano10050989 - 21 May 2020
Abstract
Synthesis of anisotropic Janus particles (AnJPs) is crucial for understanding the fundamental principles behind non-equilibrium self-organization of cells, bacteria, or enzymes, and for the design of novel multicomponent carriers for guided self-assembly, drug delivery or molecular imaging. Their catalytic activity, as well as [...] Read more.
Synthesis of anisotropic Janus particles (AnJPs) is crucial for understanding the fundamental principles behind non-equilibrium self-organization of cells, bacteria, or enzymes, and for the design of novel multicomponent carriers for guided self-assembly, drug delivery or molecular imaging. Their catalytic activity, as well as many other chemical and physical properties are intimately related to the nano- and mesoscale structure. An efficient and fast in situ monitoring of the structural changes involves non-destructive techniques which can probe macroscopic volumes of multicomponent systems, such as small-angle scattering (SAS). However, the interpretation of scattering data is often a difficult task since the existing models deal only with symmetric AnJPs, thus greatly restricting their applicability. Here, a general theoretical framework is developed, which describes scattering from a system containing randomly oriented and placed two-phase AnJPs with arbitrarily tunable geometric and chemical asymmetries embedded in a solution/matrix of different chemical composition. This approach allows an analytic description of the contrast matching point, and it is shown that the interplay between the scattering curves of the two phases gives rise to a rich scaling behavior which allows extracting structural information about each individual phase. To illustrate the above findings, analytic expression for the scattering curves of asymmetric AnJPs are derived, and the results are validated by Monte-Carlo simulations. The broad general features of the scattering curves are explained by using a simple scaling approach which allows gaining more physical insight into the scattering processes as well as for the interpretation of SAS intensity. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Janus Particles at Fluid Interfaces: Stability and Interfacial Rheology
Authors: Luis E. Figueroa; Elton Lima Correia; Sepideh Razavi
Affiliation: School of Chemical, Biological, and Materials Engineering, University of Oklahoma

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