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Biocompatible and photoluminescent keratin/poly(vinyl alcohol)/carbon quantum dot nanofiber: A novel multipurpose electrospun mat

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Abstract

Carbon quantum dots (C-dots) triggered photoluminescent keratin/poly(vinyl alcohol) (PVA)/C-dots nanofibers (NFs) with optical transparency and biocompatibility were prepared by an electrospinning process. The synthesized NFs were characterized by field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy, and spectrofluorometer. C-dots are capable of emitting excitation dependent photoluminescence (PL) emission spectra at room temperature and are nontoxic at reasonably high concentrations. Optically transparent keratin/PVA/C-dots NFs were found to exhibit excitation dependent PL emission at the wavelengths of 488, 535, and 625 nm during excitation at the wavelengths of 360, 480, and 545 nm, respectively, similar to the C-dots. In vitro cytotoxicity tests against NIH-3T3 cell lines revealed a good biocompatible nature of keratin/PVA/C-dots. The results indicated that the fabricated composite NFs mat not only exhibited a well preserved quantum confinement effect of the C-dots along with its transparency but also showed biocompatibility in the living cell environment.

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Authors and Affiliations

  1. Department of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk, 54896, Korea

    Chohye Lee, Al-Mahmnur Alam, Taehee An & Hak-Yong Kim

  2. Department of Chemistry, Inha University, 100 Inharo, Incheon, Gyeonggi, 22212, Korea

    Bishweshwar Pant & Soo-Jin Park

  3. Department of Biomedical Sciences, Chonbuk National University Medical School, Jeonju, Jeonbuk, 54896, Korea

    Hea-Jong Chung & Seong-Tshool Hong

  4. Department of Organic Materials & Fiber Engineering, Chonbuk National University, Jeonju, Jeonbuk, 54896, Korea

    Mira Park & Hak-Yong Kim

Authors
  1. Chohye Lee
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  2. Bishweshwar Pant
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  3. Al-Mahmnur Alam
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  4. Taehee An
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  5. Hea-Jong Chung
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  6. Seong-Tshool Hong
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  7. Soo-Jin Park
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  8. Mira Park
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  9. Hak-Yong Kim
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Corresponding authors

Correspondence to Mira Park or Hak-Yong Kim.

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Lee, C., Pant, B., Alam, AM. et al. Biocompatible and photoluminescent keratin/poly(vinyl alcohol)/carbon quantum dot nanofiber: A novel multipurpose electrospun mat. Macromol. Res. 24, 924–930 (2016). https://doi.org/10.1007/s13233-016-4124-3

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  • DOI: https://doi.org/10.1007/s13233-016-4124-3

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