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Carbon Nanostructures in Biological Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Biomaterials".

Deadline for manuscript submissions: closed (10 February 2022) | Viewed by 2637

Special Issue Editors


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Guest Editor
Department of Electrical Engineering and Automation, School of Electrical Engineering, Aalto University, PO Box 13500, 00076 Aalto, Finland
Interests: electrochemistry of carbon nanomaterials, atomic-level simulations of carbonaceous surfaces, computational spectroscopy, hybrid carbon-nanostructures, computational electrochemistry

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Guest Editor
Department of Electrical Engineering and Automation, School of Electrical Engineering, Aalto University, P.O. Box 13500, 00076 Aalto, Finland
Interests: hybrid carbon-nanostructures; biomaterials; biocompatibility; electrochemical sensors; neural applications

Special Issue Information

Dear Colleagues,

Carbon is an extremely versatile material exhibiting a large number of unique properties. It exists as several different allotropes that range from 1D to 3D structures that are used in numerous applications. The nanostructured carbon materials show unique characteristics and versatility that can provide solutions to the grand challenges that our society is facing in the near future including improving the health and wellbeing of the world’s increasing population. For instance, technological solutions enabling personalized medical treatments must be developed, since the institutionalized health-care sector will not be able to handle the growing number of elderly people in the near future. This, among other things, requires new innovative material solutions that are not only tailored for specific purposes but are also biocompatible. However, to be able to create materials with improved properties, it is crucial to fully understand the reasons for the observed behavior and to draw the correct conclusions about the fundamental factors behind the reported phenomena. For this, an in-depth understanding of the chemical and physical properties of the nanostructures is essential. Thus, there is a clear need for integrated approaches combining experimental investigations with computational studies.

This Special Issue is open to papers on carbon nanostructures in biomedical applications as well as papers on fundamental experimental and computational characterizations of carbon nanostructures enabling an understanding of the underlying chemical and physical phenomena that take place with and on these materials.

Prof. Dr. Tomi Laurila
Dr. Emilia Peltola
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 submissions that pass pre-check are 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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • carbon nanostructures
  • carbon nanofibers
  • carbon nanotubes
  • fullerenes
  • graphene
  • carbon nanobuds
  • biocompatibility
  • electrochemistry
  • computational methods
  • density functional theory
  • sensors
  • spectroscopy

Published Papers (1 paper)

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Research

10 pages, 1678 KiB  
Article
In Situ Determination of pH at Nanostructured Carbon Electrodes Using IR Spectroscopy
by Lolade Bamgbelu and Katherine B Holt
Materials 2019, 12(24), 4044; https://doi.org/10.3390/ma12244044 - 5 Dec 2019
Viewed by 2200
Abstract
Changes in pH at electrode surfaces can occur when redox reactions involving the production or consumption of protons take place. Many redox reactions of biological or analytical importance are proton-coupled, resulting in localized interfacial pH changes as the reaction proceeds. Other important electrochemical [...] Read more.
Changes in pH at electrode surfaces can occur when redox reactions involving the production or consumption of protons take place. Many redox reactions of biological or analytical importance are proton-coupled, resulting in localized interfacial pH changes as the reaction proceeds. Other important electrochemical reactions, such as hydrogen and oxygen evolution reactions, can likewise result in pH changes near the electrode. However, it is very difficult to measure pH changes located within around 100 µm of the electrode surface. This paper describes the use of in situ attenuated total reflectance (ATR) infrared (IR) spectroscopy to determine the pH of different solutions directly at the electrode interface, while a potential is applied. Changes in the distinctive IR bands of solution phosphate species are used as an indicator of pH change, given that the protonation state of the phosphate ions is pH-dependent. We found that the pH at the surface of an electrode modified with carbon nanotubes can increase from 4.5 to 11 during the hydrogen evolution reaction, even in buffered solutions. The local pH change accompanying the hydroquinone–quinone redox reaction is also determined. Full article
(This article belongs to the Special Issue Carbon Nanostructures in Biological Applications)
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