biomaterial, in order to confine the growth. Occasionally, the selective or preferential adsorption of capping agents onto particular crystallograp- hic facets during the growth stage permits diverse shapes to be produced, for example triangles, hexagons, disks, rods and multipods. Here, the capping agent functions by inhibiting the growth of a particular crystallographic direction. Among the sha
functionalization of nanoparticles, it is important to keep in mind a range of useful properties we wish to have in any drug delivery across the BBB(Blood brain barrier). In this context, owing to their small size, customizable surface, improved solubility, targeted drug delivery and multifunctionality, nanoparticles have emerged as potential drug delivery carriers to tissues throughout the body.
Functional substance layers
A. Anti-insect adhesives coated by silver nano-ptcles using cases of Silver nano ptcles’s function of anti-bacterial
i. Samsung home appliances such as refrigerator or air conditioner with silver nano coating to their inner surfaces for an overall anti-bacterial and anti-fungal effect. As air circulates, the coated surfaces contact with the silver ions which can re
functional group onto the surface of materials.
Specific functional groups provide special chemical reactivity and varying physical properties for surface
A variety of molecules such as protein, peptide and gelatin, have been successfully bound on surface of materials.
Application : improvements
•The plasma method gives more enhanced strength to these ceramics as compare to conventio
function
Maintain homeostasis
by constant recycling of the basal cell layer
Dermis
Fibroblasts
Constitutes the bulk of the skin
Composed of collagen with elastin
and glycosaminoglycans (GAG’s)
major role in the biomechanics of the skin
Hypodermis
Adipose tissue (vascularized, connective tissue)
Contributes to both the thermoregulatory
Shook absorb
Endothelial Cell Coculture Within Tissue-Engineered
Cardiomyocyte Sheets Enhances Neovascularization
and Improves Cardiac Function of Ischemic Hearts
Department of Cardiovascular MedicineInstitute of Health BiosciencesThe University of Tokushima Graduate School
Limitation
Lack of organ donors
Complications associated with immune
suppressive treatments
*’Nano’ means….
Nanometer: one billionth of a meter
Nano-: prefix comes from the Greek word for ‘dwarf’
Chemical, physical, and biological properties that differ from those of their larger, or bulk counterparts
Nanotechnology: The National Nanotechnology Initiative(NNI)-> the science of materials and phenomena in the range of 1 to 100nm in diameter
*Features of ‘nanoparticles
④ 백내장용 안내렌즈(IOL)의 개발
- PMMA, 가교화 PMMA
- 단백질, 세포 등의 흡착 및 성장 용이
∘소수성 및 친수성기 도입을 위한 표면처리 연구 개발 중.
∘헤파린과의 화학적 반응 연구 개발 중.
9) 인공폐용 고분자재료
① 산소 공급, 이산화탄소 배출용 인공 폐
∘ 개심수술시 폐를 대신
㉢ PG의 특성
곁가지가 없는 단순한 선형 고분자(-O-CH2-CO-)로서 고융점(225~230℃)·고결정성(약 50% 정도)을 갖고, 기계적 물성, 강도가 강하고 뻣뻣하다. 고결정성이기 때문에 일반적인 용매에는 잘 녹지 않아서 가공은 열을 가해 용융시킨 상태에서 이루어진다. 수분에 의해 공격받기 쉬운 선형 에스터결
Primary Criterion for Selecting Products
77.8% of Respondents replied, “I would have an intention to buy eco-products.”
Highly Recognized in their 40s with 81.7%
Considering Eco-Products as Positive Image
Progressive(58%), Distinctive(37%), High-technologic (33%)
Image of Eco-consumers - thoughtful, reasonable
Low Participation to the ‘Eco-Friendly’ Movement
Actual Rating just