Special Issue "Polymers for Medical Applications"

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

Deadline for manuscript submissions: 31 December 2020.

Special Issue Editor

Prof. Dr. Suk Ho Bhang
Website
Guest Editor
School of chemical engineering, Sungkyunkwan University, Korea
Interests: cell and tissue engineering; nanomaterials for therapeutic applications
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Synthetic polymers and nanomaterials have raised increasing interest in recent years due to their potential application in the biomedical field. Novel synthetic polymers and nanomaterials with specially designed physical or chemical properties have been developed as biopolymers, nano-scale materials, imaging tools, stimuli-responsive materials, cell culture supporting materials, and systems for drug delivery and drug depots. Such advances drive their future application in the biomedical field. This Special Issue welcomes original research articles with a focus on the synthesis and functionalization of newly synthesized biopolymer, nanomaterials, imaging tools, stimuli-responsive materials, cell culture supporting materials, and drug delivery systems for future biomedical applications.

Prof. Suk Ho Bhang
Guest Editor

Manuscript Submission Information

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Keywords

  • pH-sensitive polymer
  • cell detachment
  • cell viability
  • angiogenesis

Published Papers (2 papers)

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Research

Open AccessArticle
Facile Tailoring of Contact Layer Characteristics of the Triboelectric Nanogenerator Based on Portable Imprinting Device
Materials 2020, 13(4), 872; https://doi.org/10.3390/ma13040872 - 15 Feb 2020
Abstract
Renewable energy harvesting technologies have been actively studied in recent years for replacing rapidly depleting energies, such as coal and oil energy. Among these technologies, the triboelectric nanogenerator (TENG), which is operated by contact-electrification, is attracting close attention due to its high accessibility, [...] Read more.
Renewable energy harvesting technologies have been actively studied in recent years for replacing rapidly depleting energies, such as coal and oil energy. Among these technologies, the triboelectric nanogenerator (TENG), which is operated by contact-electrification, is attracting close attention due to its high accessibility, light weight, high shape adaptability, and broad applications. The characteristics of the contact layer, where contact electrification phenomenon occurs, should be tailored to enhance the electrical output performance of TENG. In this study, a portable imprinting device is developed to fabricate TENG in one step by easily tailoring the characteristics of the polydimethylsiloxane (PDMS) contact layer, such as thickness and morphology of the surface structure. These characteristics are critical to determine the electrical output performance. All parts of the proposed device are 3D printed with high-strength polylactic acid. Thus, it has lightweight and easy customizable characteristics, which make the designed system portable. Furthermore, the finger tapping-driven TENG of tailored PDMS contact layer with microstructures is fabricated and easily generates 350 V of output voltage and 30 μA of output current with a simple finger tapping motion-related biomechanical energy. Full article
(This article belongs to the Special Issue Polymers for Medical Applications)
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Open AccessArticle
Synthesis of Sub 3 nm-Sized Uniform Magnetite Nanoparticles Using Reverse Micelle Method for Biomedical Application
Materials 2019, 12(23), 3850; https://doi.org/10.3390/ma12233850 - 22 Nov 2019
Cited by 2
Abstract
We report a synthetic method for small and uniform Fe3O4 (magnetite) nanoparticles under mild conditions. Spherical sub-3 nm-sized magnetite nanoparticles were prepared via reverse micelles composed of oleylamine, F127, xylene, and water for the reaction of iron(III) stearate with hydrazine [...] Read more.
We report a synthetic method for small and uniform Fe3O4 (magnetite) nanoparticles under mild conditions. Spherical sub-3 nm-sized magnetite nanoparticles were prepared via reverse micelles composed of oleylamine, F127, xylene, and water for the reaction of iron(III) stearate with hydrazine at a reaction temperature of 90 °C in air atmosphere. These synthesized magnetite nanoparticles exhibited good size uniformity. By controlling experimental conditions, we could easily control both size and size uniformity of these magnetite nanoparticles. We further investigated whether Fe3O4 could be used in biomedical applications. Cytotoxicity of Fe3O4 was evaluated with human adipose-derived stem cells (hADSCs). Our results showed that the number of hADSCs did not significantly decrease when these cells were treated with Fe3O4 nanoparticles at a concentration of up to 9 μg/mL. Apoptotic activity and cell proliferation of hADSCs treated with Fe3O4 nanoparticles were similar to those of hADSCs without any treatment. This novel method could be used for synthesizing uniform and biocompatible Fe3O4 nanoparticles with further biomedical applications. Full article
(This article belongs to the Special Issue Polymers for Medical Applications)
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