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권해용 ( Hae Yong Kweon ),조유영 ( You Young Jo ),이희삼 ( Heui Sam Lee ),이광길 ( Kwang Gill Lee ),성규병 ( Gyoo Byung Sung ),김기영 ( Kee Young Kim ),지상덕 ( Sang Duk Ji ) 한국잠사학회 2012 한국잠사곤충학회지 Vol.50 No.2
Heavy metals and residual agricultural chemicals in Bombyx mori silkworm cocoon for nontextile usages were examined. Proximate composition of silkworm cocoon was examined; contents of moisture, crude protein, crude fat, and ash were about 5 ~ 6%, 93 ~ 94%, 0.4 ~ 0.5%, and 0.3 ~ 0.4%, respectively. The Heavy metals were analyzed by ICP/MS after acid digestion. Arsenic, cadmium, and lead were not detected. The average contents of mercury, zinc, and cupric were 0.317, 3.99, and 2.06 mg/kg, respectively. Agricultural chemicals, such as dichlorvos and paraquart also were not detected. Silkworm cocoon may be safe used for nontextile applications.
권해용 ( Hae Yong Kweon ),조유영 ( You Young Jo ),이광길 ( Kwang Gill Lee ),김현복 ( Hyun Bok Kim ),여주홍 ( Joo Hong Yeo ) 한국잠사학회 2014 한국잠사곤충학회지 Vol.52 No.2
Silk polymer has been focused recently on medical applications as a novel biomaterials. The factors for biomaterials were considered and reviewed recent research on surgical suture, wound dressing, tympanic regeneration patch, guided bone regeneration membrane, bone implant and ligament. Silk polymer is good mechanical properties and biocompatibility. Therefore it might be used as one of promising materials for medical application.
권해용 ( Kweon Hae Yong ),이광길 ( Lee Kwang Gill ),우순옥 ( Woo Soon Ok ),박영환 ( Park Young Hwan ) 한국잠사학회 2002 한국잠사곤충학회지 Vol.44 No.2
염화아연에 의한 작잠 견사의 용해 조건을 살펴본 후 투석법에 의하여 얻은 작잠 견피브로인 분말의 형태와 적외선 분광 특성 및 X-선 회절 특성을 살펴본 결과 다음과 같은 결론을 얻었다. 1. 작잠 견사는 고농도의 염화아연 수용액에 용해되었으나 용해 조건을 조절하여 완전하게 작잠 견사를 용해할 수 있었다. 2. 재생 작잠 분말의 구조 특성을 살펴보기 위하여 적외선 분광분석과 X-선 회절분석을 행한 결과 작잠분말은 β-sheet 구조와 α-helix 구조로 이루어져 있었다. 3. 염화아연을 사용하여 제조한 작잠 견피브로인 용액으로부터 순수한 작잠 견피브로인을 얻기 위한 새로운 방법이 개발되어야 함을 알 수 있었다. Dissolution of Antheraea pernyi silk fiber was carried out in a zinc chloride solution with various dissolving conditions. The solubility was significantly dependent on the concentration of zinc chloride, dissolving temperature and time. The proper conditions of dissolution were found as 8M zinc chloride, 70°C temperature and 30 min dissolving time. Regenerated A. Pernyi silk fibroin powder was obtained through dialysis. FTIR and XRD showed that regenerated A. pernyi silk powder was composed of a B-sheet as well as an a-helix conformation.
견단백질/Poly (Vinyl pyrrolidone)의 열특성
권해용 ( Hae Yong Kweon ),이광길 ( Kwang Gill Lee ),여주홍 ( Joo Hong Yeo ),우순옥 ( Soon Ok Woo ),한상미 ( Sang Mi Han ) 한국잠사학회 2007 한국잠사곤충학회지 Vol.49 No.2
실크단백질을 이용한 나노화 소재개발을 위한 기초연구의 일환으로 실크 피브로인과 PVP를 반응시켜 제조한 견단백질/PVP의 열 특성을 살펴보기 위하여 시차열분석 및 열중량분석을 행하였다. 1. PVP의 유리전이온도는 175℃ 부근에서 관찰되었으며 실크 단백질과 반응에 의하여 영향을 받지 않았으나 견단백질/PVP는 220℃ 부근에서 미지의 발열피크를 나타내었다. 2. 열중량 분석 결과 PVP의 함량이 증가함에 따라 실크 단백질에 기인한 열분해시작온도가 상대적으로 증가하는 것으로 관찰되었다. Silk fibroin/poly (vinyl pyrrolidone) conjugates were prepared and characterized through differential thermal calorimeter and thermogravimetry. The glass transition temperature (Tg) of poly (vinyl pyrrolidone) was not changed by reaction with silk fibroin. However, abnormal exothermic peak was observed at the silk fibroin/poly (vinyl pyrrolidone) conjugates. Thermogravimetric analysis showed that thermal stability of silk fibroin was relatively increased by reaction with PVP.