Abstract:
The present invention relates to a 3-dimensional cell culture instrument using a hollow tube and a 3-dimensional cell culture method using the same, and more particularly, to a 3-dimensional cell culture instrument including a plurality of cell receiving portions each having a hollow tube therein, and a 3-dimensional cell culture method using the same. As for the 3-dimensional cell culture instrument, the hollow tube is formed in the cell receiving portion. Therefore, even when the 3-dimensional cell culture instrument is simply immersed in a culture liquid inside a culture plate, in which cells are cultured, the cell culture liquid is absorbed into the hollow tube due to a capillary phenomenon and a surface tension of the hollow tube. The absorbed cell culture liquid forms a liquid droplet on the end in the hollow tube, and cells in the liquid droplet cohere together due to the gravity to form a spheroid. Thus, the present invention can perform a 3-dimentional culture of cells more easily and conveniently as compared with the conventional art.
Abstract:
PURPOSE: A highly fluorescent 1,2,4-linking hyperbranched polymer is provided to ensure extended bond length, wide absorption spectrum, funneling property, excellent thermal characteristic and high solid-state photoluminescence efficiency. CONSTITUTION: A highly fluorescent 1,2,4-linking hyperbranched polymer of chemical formula (I) has a branched unit in 1,2,4-(ortho- and para-) bonding structure and a linear unit in a para bonding structure. In chemical formula, Ar1 and Ar2 are aromatic or heteroaromatic group; R1 and R2 are H, or alkyl or alkoxy group; X is H or CN; F is a functionally terminated group.
Abstract:
본 발명에 따른 초분지 복합 중합체는 하기 구조식(I)과 같이 1,2,4-(올소- 및 파라-) 결합구조에서 분지 유닛(branched unit)을 가지고 파라-결합구조에서 선형유닛(linear unit)을 갖는 것을 특징으로 한다. ................. Formula (I) 상기 구조식에서 Ar 1 및 Ar 2 는 페닐, 비페닐, 플루오르, 티오펜과 같은 방향족 또는 이종방향족 그룹 이거나 이들이 중수소를 포함하거나 하지 않는 방향족 또는 이종방향족 고리로 대체된 것이며; R 1 및 R 2 는 H, 또는 알킬 또는 알콕시 그룹; X는 H 또는 CN; 및 F는 기능적 말단봉쇄 그룹이다. 초분지 복합 중합체(hyperbranched conjugated polymer), 에너지 퍼넬링 효과(energy funneling effect), Wittig 반응(Wittig Reaction), 분자량.