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Preparation and characterization of oxidation induced release from carboxylated cellulose nanofiber cross-linked cysteamine microparticles by spray drying

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    2019 International Symposium of Institute of Forest Science (2019.09)바로가기
  • 페이지
    pp.131-131
  • 저자
    Zhao Fanyu, Tae-Hoon Kim, Seung-Hwan Lee, Jin-Chul Kim
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450370

원문정보

초록

영어
Oxidation sensitive microparticles were obtained through the cross-linking of TEMPO-modified cellulose nanofiber (TM CNF) and cysteamine (CA) by spray drying. On the photos of SEM micrographs, they showed that microparticles (MPs) were flat wrinkled balls-like and the size was less than 10 μm, and with the increase of CA content, the MPs became more aggregated. The signals of TM CNF which were found by the EDS spectrum appeared along with the signals of CA in MPs. In FTIR spectrum, MPs contained both TM CNF and CA peaks, and after the treatment of H2O2, the thiol groups of CA were oxidized according to the appearance of S-S signal. The melting point of the MPs which contained CA was below the melting point of free CA could be concluded by DSC analysis. The size of MPs determined by laser diffraction method was 12.1 to 13.8, it was larger than the size observed on the SEM micrographs. H2O2 effectively promoted the release of FITC-dextran from MPs, which was due to the molecular reorientation of CA after oxidation.

키워드

Carboxylated cellulose nanofiber Spray drying Microparticles Oxidation sensitive

저자

  • Zhao Fanyu [ Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea ]
  • Tae-Hoon Kim [ Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea ]
  • Seung-Hwan Lee [ Division of Forest Materials Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea ]
  • Jin-Chul Kim [ Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

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