Synthesis and characterization of conductive flexible cellulose carbon nanohorn sheets for human tissue applications

Karthik Paneer Selvam; Taichi Nagahata; Kosuke Kato; Mayuko Koreishi; Toshiyuki Nakamura; Yoshimasa Nakamura; Takeshi Nishikawa; Ayano Satoh; Yasuhiko Hayashi

추천

검색

자료유형: 학술저널

저자정보: Karthik Paneer Selvam (Okayama University Japan) Taichi Nagahata (Okayama University Japan) Kosuke Kato (Okayama University Japan) Mayuko Koreishi (Okayama University Japan) Toshiyuki Nakamura (Okayama University Japan) Yoshimasa Nakamura (Okayama University Japan) Takeshi Nishikawa (Okayama University Japan) Ayano Satoh (Okayama University Japan) Yasuhiko Hayashi (Okayama University Japan)

저널정보: 한국생체재료학회 생체재료학회지 생체재료학회지 제24권 제4호

발행연도: 2020.1

수록면: 264 - 275 (12page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Background: Conductive sheets of cellulose and carbon nanomaterials and its human skin applications are an interesting research aspect as they have potential for applications for skin compatibility. Hence it is needed to explore the effects and shed light on these applications. Method: To fabricate wearable, portable, flexible, lightweight, inexpensive, and biocompatible composite materials, carbon nanohorns (CNHs) and hydroxyethylcellulose (HEC) were used as precursors to prepare CNH-HEC (Cnh-cel) composite sheets. Cnh-cel sheets were prepared with different loading concentrations of CNHs (10, 20 50,100 mg) in 200 mg cellulose. To fabricate the bio-compatible sheets, a pristine composite of CNHs and HEC was prepared without any pretreatment of the materials. Results: The obtained sheets possess a conductivity of 1.83 × 10? 10 S/m and bio-compatible with human skin. Analysis for skin-compatibility was performed for Cnh-cel sheets by h-CLAT in vitro skin sensitization tests to evaluate the activation of THP-1 cells. It was found that THP-1 cells were not activated by Cnh-cel; hence Cnh-cel is a safe biomaterial for human skin. It was also found that the composite allowed only a maximum loading of 100 mg to retain the consistent geometry of free-standing sheets of < 100 μm thickness. Since CNHs have a unique arrangement of aggregates (dahlia structure), the composite is homogeneous, as verified by transmission electron microscopy (TEM) and, scanning electron microscopy (SEM), and other functional properties investigated by Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), conductivity measurement, tensile strength measurement, and skin sensitization. Conclusion: It can be concluded that cellulose and CNHs sheets are conductive and compatible to human skin applications.

#Carbon Nanohorns #Cellulose #Skin sensitization #Composites #Bio-compatible

참고문헌 (36)

참고문헌 신청

Hoyos-Palacio LM / 2014 / Catalytic effect of Fe, Ni, Co and Mo on the CNTs production / InIOP conference series: materials science and engineering 2014 59(1):012005

Osorio AG / 2008 / H2SO4/HNO3/HCl-Functionalization and its effect on dispersion of carbon nanotubes in aqueous media / Appl Surf Sci 255(5 PART 1):2485~2489

Vaisman L / 2006 / The role of surfactants in dispersion of carbon nanotubes / Adv Colloid Interf Sci 128?130(2006):37~46

Iijima S / 1999 / Nano-aggregates of single-walled graphitic carbon nano-horns / Chem Phys Lett 309(3-4):165~170

Cioffi C / 2007 / Synthesis, characterization, and photoinduced electron transfer in functionalized single wall carbon nanohorns / J Am Chem Soc 129(13):3938~3945

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!