Special Issue "Surface Modification of Halloysite Nanotubes"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: 15 May 2017

Special Issue Editor

Guest Editor
Prof. Dr. David K. Mills

Louisiana Tech Univ., Biological Sciences and Biomedical Engineering, Ruston, LA 71272 USA
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Special Issue Information

Dear Colleagues,

This Special Issue highlights the current state and future prospects of a biocompatible, green, inexpensive and multifunctional clay nanoparticle. Halloysite nanotubes (HNTs) have shown to be an ideal nanoparticle for polymer reinforcement, sustained-release drug delivery, nanoreactor synthesis, and use as substrate material for nanostructured coatings. A number of methods exist on surface modification of HNTs with polyelectrolytes, polysaccharides, polymers, metals and resins. The current state-of-the-art shows a collection of technologies that use simple or multi-step chemical reactions to modify the HNT surface. Functionalized HNTs can then be applied directly for, or combined with, polymers to produce nanocomposites for use in a diverse array of biomedical applications including antimicrobial, drug delivery, regenerative medicine or tissue repair. Contributions will focus on techniques that impart specific functionalities to HNT nanotubes (HNTs) that may include increased surface area for cell penetration; drug delivery, alteration of surface pH, polymer integration, and slow release mechanisms among others.

Prof. Dr. David K. Mills
Guest Editor

Submission

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. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as 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.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs).

Keywords

  • Drug release;
  • Halloysite nanotubes;
  • Functionalization;
  • Polyelectrolyte;
  • Polymer, surface modification

Published Papers (1 paper)

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Research

Open AccessArticle Surface Improvement of Halloysite Nanotubes
Appl. Sci. 2017, 7(3), 291; doi:10.3390/app7030291
Received: 30 December 2016 / Revised: 14 February 2017 / Accepted: 24 February 2017 / Published: 16 March 2017
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Abstract
A novel development on halloysite-polyvinyl alcohol (HNTs-PVA) nanocomposites has been conducted using malonic acid (MA) by crosslinking PVA and HNTs. PVA-MA crosslinking produces smooth surfaces, which play an important role in enhancing the properties of HNTs-PVA nanocomposite. The crystallographic structures of crosslinked HNTs-PVA
[...] Read more.
A novel development on halloysite-polyvinyl alcohol (HNTs-PVA) nanocomposites has been conducted using malonic acid (MA) by crosslinking PVA and HNTs. PVA-MA crosslinking produces smooth surfaces, which play an important role in enhancing the properties of HNTs-PVA nanocomposite. The crystallographic structures of crosslinked HNTs-PVA show almost no change as depicted by the X-ray diffraction (XRD)-2θ-peak, suggesting that MA has no or little influence on the crystallographic structure of the HNTs-PVA. Images taken by field emission scanning electron microscope (FESEM) suggest possible effects of MA on the morphology and internal features of HNTs-PVA by reducing the agglomeration of HNTs, which is considered a decisive step in improving the surface qualities of HNTs. Investigating the samples using the Brunauer–Emmelt–Teller (BET) technique showed that the surface area was increased by about 10 times, reaching the second highest recorded results compared to the HNTs, which could be considered a breakthrough step in enhancing the properties of HNTs-PVA due to MA crosslinking. Full article
(This article belongs to the Special Issue Surface Modification of Halloysite Nanotubes)
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