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곽현중,안현철,배영환,이원준,여상영 한국섬유공학회 2022 한국섬유공학회지 Vol.59 No.1
Collagen is used in various medical and cosmetic materials as a biopolymer. Inorder to use it for high-end medical fibers, its mechanical properties must be improved,and this can be achieved by conjugating it with fish-skin-based collagen and chitosan. Theconjugated collagen fibers can utilize the advantages of the materials and can be appliedto make wet-laid nonwovens for wound dressing. In this study, the conjugated collagenfibers were prepared by wet spinning and their surface, optical, and mechanical propertieswere analyzed based on the various compositions of collagen and chitosan. In addition,the wet-laid nonwovens were manufactured with bilayers, designed with an inner layer ofconjugated collagen fibers and an outer layer of cotton/chitosan spunlace nonwoven. Thecharacteristics of the wet-laid nonwovens in terms of their liquid-handling properties andthe distribution of their pore sizes were investigated. The results thus obtained show thatthe use of conjugated fibers in wet-laid nonwovens can affect their properties, which canbe controlled by adjusting the composition ratio.
구건우,김태형,정성준,곽주희,오창규,박동원,곽현중,문지용,김상헌,손장원,윤호주,신동호,박성수,오영하,표주연 대한결핵및호흡기학회 2015 Tuberculosis and Respiratory Diseases Vol.78 No.3
Desmoid tumors are rare soft tissue tumors considered to have locally infiltrative features without distant metastasis until now. Although they are most commonly intraabdominal, very few cases have extra-abdominal locations. The origin of intrathoracic desmoid tumors is predominantly the chest wall with occasional involvement of pleura. True intrathoracic primary desmoid tumors with no involvement of the chest wall or pleura are extremely rare. We recently experienced a case of true intrathoracic desmoid tumor presenting as multiple lung nodules at 13 years after resection of a previous intraabdominal desmoid tumor.