변화하는 고분자,
“상전이 고분자”
(phase-transition polymer)
; at certain temperature
-> a volume phase transition
LCST(lower critical solution temp.)
UCST(upper critical solution temp.)
Change in the hydration state
1) volume phase transition
2) coil-to-globule transition
Room temp. -> Body temp.
= change the physical properties
Many people have asked me what happened with Sandman, and to date Ive kept mum. But theres so much misinformation and rumor out there that I feel its now time to tell my side of the story:
Its simple. I was at Warner Brothers one day in 1996 chatting it up with Lorenzo DiBonaventura (aint that a mouthful). Good ol Lorenzo decided to whip through a bunch of titles that they had in development, cu
Introduction
What is Food Additives?
: Substances added to food to maintain/improve food quality
or preserve flavor and enhance its taste and appearance during processing
Types of Food AdditivesPreventing from spoilage of food
preservative, antioxidant
Improving or maintaining the quality of food
emulsifier, fortifying nutrient
Giving better texture
coagulant, blowing agent, thickenin
1. 분석대상의 내용
(1) 목적
약물전달시스템은 약물개발 및 기존의 약물을 효율적으로 사용하기 위해서 활발히 연구되고 있는 분야이다. 그 중에서도 약물이 인체 내로 투여되는 경로, 투여된 약의 지속기간, 특정 조직 및 기관, 질병을 target으로 하는 방법 등에 관해서 특히 많은 연구가 진행되고 있