5.2 Drug Delivery System
5.2.1 Advantage of Nano-drug delivery system
By diagnosis, and for treatment, we need enhanced drug delivery system. Drug delivery system of these days is just eat and let it flow through the body. It is not good at efficiency. Because the digestive system sometimes digest and remove the drug before it reaches to the target.
For enhancing the efficiency of drug
Nanowire and cantilever lab on chips help in early detection of cancer biomarkers
Receptor-mediated endocytosis of the nanocarrier(1)
Exocytosis of the nanocarrier(1a)
Dissociation, acidification, release of the drug into the brain; (1b)
Recycling of receptors(1c and 1d)
Adsorptive-mediated endocytosis (2a)
Exocytosis of positively charged nanocarriers.(2b)
R3 : The re
염료 감응형 태양전지는 반도체 접합형 태양전지와는 달리, 고체/액체 접합의 광전
기화학형이며 가시광선을 흡수하여 전자-홀 쌍 (electron-hole pair)을 생성할 수 있
는 감응성 염료분자와, 생성된 전자를 전달하는 전이금속 산화물을 주된 구성 재료
로 하는 광전기 화학적 태양전지이다. Fig. 2.2. 에서
The crystal structure is a member of the hexagonal crystal system and consists of tetrahedrally coordinated Zinc and Sulfur atoms that are stacked in an ABABAB pattern.
The structure is closely related to the structure of lonsdaleite, or hexagonal diamond.
As there all orientations of the crystal, rings of different 2θ values are formed
A single crystal specimen in a Bragg-Brentano diffrac
Luminescence- 외부 에너지를 흡수하여 가시광을 방출하는 현상
빛 발광, 전계 발광, 음극선 발광 등이 있음
빛 발광 (Photo Luminescence)-가시광선을 받아 에너지 방출
전계 발광(Electroluminescence)-전기장을 걸어서 빛 에너지 방출
음극선 발광(Cathodoluminescence)-음극선, 전자 이용 에너지 방출
시료에 레이저