Mineral composed of silicon and oxygen atoms in a continuous framework of SiO₄ silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂.
And in a few seconds the last lumps of quartz had disappeared.
2
Small white line is an intrusion of quartz in the algonkian.............................................. 208
3
The while slab with the golden quartz under the microscope seemed empty.
4
On the top of the hill we found large pebbles of quartz.
5
The plain to the south is covered with quartz and sandstone pebbles.
1
Maybe they decompose quickly into a form that resembles typical rockcrystal.
2
The boy opened his left hand and showed Alec a yellow rockcrystal.
3
But with a second cube of rockcrystal corresponding results were not obtained.
4
I'm using the rockcrystal to point to the letters.
5
The green dwarf regarded us whimsically, sipping from his great flagon of rockcrystal.
Uso de sio2 en inglés
1
These predictions agree well with experimental observations for Co and Fe films on SiO2.
2
SiO2 Materials Science is working on producing vials that won't shatter at super-cold temperatures.
3
Nano-SiO2 is an inexpensive material for enzyme immobilization and has been frequently utilized for this purpose.
4
The DNA profiles were analysed in the tissues of zebra fish that treated with SiO2 nanoparticles.
5
In plants SiO2 promotes strengthening of the cell walls and provides increased mechanical support to the aerial parts.
6
It is found that DNA from control tissues was intact, whereas the tissues treated with SiO2 were all fragmented.
7
Quartz sand is silicon dioxid (SiO2).
8
Si was shown to interact with several components of the plant cell walls in the form of silica (SiO2).
9
Taken together a laser-based method to develop novel biocompatible HA-SiO2 ceramics with adjustable properties and possible applications as orthopedic bioceramics are discussed.
10
Horizontally and vertically oriented few-layer graphenes have been synthesized directly on SiO2 coated Si substrates via thermal and hot-filament chemical vapor deposition, respectively.
11
Interestingly, a significant increase in the photoluminescence intensity is observed with an increase in the SiO2 shell thickness, which varies with the increasing reaction time.
12
Biocompatibility was determined by measuring cell activity of osteoblasts cultivated on four laser-sintered materials in the HA-SiO2 system in comparison to normal cell culture plastic.
13
That came a day after the U.S. government awarded $143 million to SiO2 Materials Science to boost production of its vials and syringes.
14
The results revealed that alteration of antioxidant enzymes due to SiO2 nanoparticle can be considered as a biomarker to SiO2-mediated oxidative stress in biological samples.
15
Notably slower Fe(II) precipitation in the clay suspensions compared to γ-Al2O3 and SiO2 is attributed to relatively low availability of substrate-derived Al and Si.