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NTIS 바로가기공업화학 = Applied chemistry for engineering, v.28 no.4, 2017년, pp.404 - 409
정경원 (순천대학교 공과대학 고분자공학과) , 나재운 (순천대학교 공과대학 고분자공학과) , 박준규 ((주)시지바이오)
Natural polymer chitosan has been widely applied to medical fields due to its biochemical activities such as anticancer, antibacterial and lowering cholesterol in addition to biocompatibility and biodegradability. Currently, researches are being actively conducted to develop various drug-encapsulate...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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약물전달시스템은 무엇인가? | 약물전달시스템(DDS, drug delivery system)은 기존의 약물의 부작용을 최소화하고 적은 양의 약물을 효과적으로 전달하여 약효를 극대로 약물전달시간을 연장할 수 있을 뿐만 아니라 약물 방출 속도의 재현 및 예측이 가능한 제형이다. 또한, 표적 지향적 약물전달시스템은 약물의 불필요한 분포를 억제하여 비 표적 부위를 보호하고 표적 부위로만 약물을 전달하는 방법으로 암 치료 시 정상세포에는 영향을 주지 않고 암세포에만 특이적으로 반응하도록 설계한 제형이다[5-8]. | |
DDS용 재료로서 요구되는 고분자 특성 중 필수조건은 무엇인가? | 현재 DDS 분야에서 다양한 기능과 성능을 가진 생체고분자 및 합성고분자를 이용한 새로운 약물 전달체를 개발하는 연구가 활발하게 진행되고 있다[10]. DDS용 재료로서 요구되는 고분자의 특성은 생체적합성, 생분해성, 화학적⋅생물학적 무독성 등이 필수 조건이다[11,12]. 하지만 DDS 재료로서 합성고분자는 체내에서 분해되지 않고 잔존하게 되어 부작용을 유발할 수 있는 단점을 갖고 있다[13,14]. | |
천연 고분자 키토산은 합성고분자의 어떤 단점을 해결하기 위해 연구되는가? | DDS용 재료로서 요구되는 고분자의 특성은 생체적합성, 생분해성, 화학적⋅생물학적 무독성 등이 필수 조건이다[11,12]. 하지만 DDS 재료로서 합성고분자는 체내에서 분해되지 않고 잔존하게 되어 부작용을 유발할 수 있는 단점을 갖고 있다[13,14]. 이러한 문제를 해결하기 위해 최근에는 생물학적 특성이 우수하고 생체 적합한 천연 고분자 키토산을 이용하여 다양한 기법의 약물전달 시스템이 활발히 연구되고 있다[15,16]. |
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