공학 기술의 진보 등에 힘입어 불과 몇 배에서 최저 1.2배 정도까지 좁혀졌으며, 유가가 상승할수록 가격 경쟁력은 더욱 커지게 된다.
이렇게 최근 몇 년 사이 바이오폴리머가 가격 경쟁력을 갖출 수 있게 된 것에는 국제적인 메이저 화학기업들의 대규모 공장 설립이 큰 영향을 주었다. 현재 대표적인
to facilitate controlled drug release need to be considered during manufacture of the nanoparticles. Ideal conditions, or wish-list, of any drug are difficult to meet simultaneously. As for nanocarriers to serve as good candidates for drug delivery across the BBB can be summarized as follows.
- particle diameter less than 100 nanometers;
- non-toxic, biodegradable and biocompatible;
*’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
of agricultural processes.
So, Why do we produce Bioenergy?
One reason governments are trying alternative energy is concern about pollution and climate change caused by the use of fossil energy.
So, we needed an alternative source of energy for our own good.
Also, we called for investment in renewable sources of energy and the development of alternative sources of energy
And now, 2.5 bil
of Greens and Browns
Materials to Avoid in Your Compost Pile
How to Store and Add Materials
Greens
(materials rich in nitrogen) Browns
(materials rich in carbon)
From Your garden
Green plants
Garden trimmings
Fresh leaves & flower
Grass clippings
From your Kitchen/Home
-fruit & vegetable scraps
-coffee grounds & tea bags
-manure & bedding from plant eating animals ONLY