Silicon carbon atoms. Medical search. Frequent questions

In the new single-step process for graphene, the doping is believed to introduce atoms of hydrogen and oxygen in the vicinity of the carbon lattice. (sciencedaily.com)
The oxygen and hydrogen don't replace carbon atoms, but instead occupy locations atop the lattice structure. (sciencedaily.com)
Energy applied to the SOG breaks chemical bonds and releases hydrogen and oxygen which bond with the carbon lattice," Murali said. (sciencedaily.com)
MRIs work by manipulating hydrogen atoms in water, which interact and align with the applied magnetic field from the instrument. (nanowerk.com)
The hydrogen atoms are then allowed to return to their original magnetic state, a process called relaxation. (nanowerk.com)
The probability of finding an electron in a hydrogen atom is determined by its wave function. (proprofs.com)
They chose methanol because their earlier work had shown that the compound could be formed in a vent environment from simple gases such as carbon dioxide and hydrogen. (bioedonline.org)
The chain of alternating silicon atoms and oxygen atoms are combined with carbon or hydrogen. (databridgemarketresearch.com)
Thus, for the first time, experimental results were obtained on the effect of irradiation on carbon-doped porous silicon obtained in a solution containing hydrogen hexafluorosilicate H 2 (SiF 6 ) and a significant change in its optical properties was shown. (hindawi.com)
With a diameter of about 1.4 million kilometers (860,000 miles) it would take 110 Earths strung together to be as long as the diameter of the Sun. The Sun is mostly made up of hydrogen (about 92.1% of the number of atoms, 75% of the mass). (nasa.gov)
It is composed of about 90% hydrogen and 10% helium with a small fraction of other elements, such as carbon, oxygen, and iron. (hypertextbook.com)
And that is why the Ghent-based scientists have now turned to molecules comprising simpler atoms: carbon, hydrogen, nitrogen and oxygen. (deingenieur.nl)
Only the hottest, bluest stars have enough high-energy ultraviolet radiation to take the neutral hydrogen atoms present in interstellar space, and ionize them. (scienceblogs.com)
The way you ionize an atom is you knock an electron off of the atom, and the hotter your nearby star is, the more hydrogen it can ionize! (scienceblogs.com)
Stars are element-builders: in the churning nuclear furnaces at their cores, they fuse atoms of hydrogen and helium into progressively heavier elements over billions of years. (cosmosmagazine.com)
In fact, the chemical composition of life on Earth has an approximate correlation with the chemical composition of the sun, with 98 percent of atoms in biology consisting of hydrogen, oxygen and carbon. (getpocket.com)

To make the itsy-bitsy twisty carbon, some of the same researchers stitched together individual smaller molecules using a series of 14 chemical reactions , chemist Yasutomo Segawa of the Institute for Molecular Science in Okazaki, Japan, and colleagues report May 19 in Nature Synthesis . (sciencenews.org)
Lynda Williams and colleagues at Arizona State University in Tempe have discovered that certain types of clay mineral convert simple carbon-based molecules to complex ones in conditions mimicking those of hot, wet hydrothermal vents (mini-volcanoes on the sea bed). (bioedonline.org)
In some of these materials, such as the clays saponite and montmorillonite, there is room for other atoms and molecules to slip between the layers. (bioedonline.org)
Organized -Living things are made of atoms and molecules that are organized into cells . (howstuffworks.com)
Polyatomic molecules are molecules in chemistry that consist only of atoms of a single element . (kids.net.au)
P 4 Because these two elements can (at least in theory) form complex macromolecules with endless numbers of atoms in them, they can also be considered polyatomic molecules. (kids.net.au)
As a platform for the incorporation of silicon into organic molecules, Fuzionaire's alkali metal catalyst platform could help pave the way for a larger role for silicon in the discovery and design of future generations of pharmaceuticals. (pharmiweb.com)
As initially reported in Nature , Fuzionaire's patented technology enables the incorporation of silicon into organic molecules to create many previously unexplored organosilicon compounds. (pharmiweb.com)
Aliphatic hydrocarbons are defined as molecules with carbon atoms in simple or branched chains. (cdc.gov)

In 2017, researchers created carbon nanobelts , thin loops of carbon that are like tiny slices of a carbon nanotube. (sciencenews.org)
However, the radiation tolerance for carbon nanotube field-effect transistors has not been widely studied. (acs.org)
These results indicate that carbon nanotube field-effect transistors, especially double-shielded ones, could be a promising addition to next-generation electronics for space exploration, the researchers say. (acs.org)
MIT researchers have found new ways to cure headaches in manufacturing carbon nanotube processors, which are faster and less power hungry than silicon chips. (technologyreview.com)
Not only are nanotube transistors faster than silicon ones, studies have found that chips made from nanotubes could be up to ten times more energy efficient. (technologyreview.com)
The group of researchers he leads has developed a working 16-bit microprocessor built from over 14,000 carbon nanotube transistors that Shulaker claims is the most complex ever demonstrated. (technologyreview.com)
The techniques they have come up with can be implemented with equipment used for making conventional silicon chips, which means chipmakers won't have to invest in expensive new gear if they want to make nanotube processors. (technologyreview.com)
But if they are to displace silicon processors, carbon nanotube ones will ultimately need billions of transistors so they can run advanced software. (technologyreview.com)
IBM, which a few years ago said it hoped to have carbon nanotube chips take over from silicon ones by 2020, is also working on projects involving the technology. (technologyreview.com)

When silicon is burned, it forms solids like silicon dioxide, better known as silica or quartz. (businessinsider.com)
Meanwhile, burning carbon compounds produces gases like carbon dioxide. (businessinsider.com)
What's more, common silicon compounds, such as silicon dioxide (or silica), are generally solid at terrestrial temperatures and insoluble in water. (getpocket.com)
Compare this to highly soluble carbon dioxide, for example, and we see that carbon is more flexible and provides many more molecular possibilities. (getpocket.com)
Other ingredients used in the dispersible tablet formulation include microcrystalline cellulose, sodium starch glycolate, hypromellose, corn starch, strawberry cream flavour, aspartame, colloidal silicon dioxide and magnesium stearate. (who.int)
The technique involves melting wax that is then dissolved in carbon dioxide under pressure before being sprayed in a thin layer over the surface that is to be protected from water and dirt. (lu.se)
The biodegradable polymers that Charlotta Turner's research group is using - and which, like the wax, can be dissolved in carbon dioxide - are manufactured by a research group at the University of Nottingham. (lu.se)

Moissanite stones are silicon carbide, and the hardness scale calls it a 9.25 on a scale of 10. (harcourthealth.com)
On the other hand, moissanite only contains silicon carbide, so it is not an actual gemstone. (harcourthealth.com)
Silicon carbide crystals. (businessinsider.com)
Silicon Carbide Market The research report includes specific segments by region (country), by company, by Type and by Application. (openpr.com)
An experimental transistor using silicon oxide for the base, carbide for the 2D material and aluminum oxide for the encapsulating material. (electroiq.com)
At room temperature, the researchers saw that the conductance of heat from the carbide to the silicon base was twice as high with the addition of the aluminum oxide layer versus without it. (electroiq.com)
Indeed, intercalation of different chemical species in between epitaxial graphene and silicon carbide (SiC), for instance, may decouple the graphene with respect to the substrate due to the conversion of the buffer layer into a graphene layer. (lu.se)

To date, one of the available and inexpensive methods for obtaining porous structures is the electrochemical anodization of a crystalline silicon wafer in electrolytes containing hydrofluoric acid (HF)/silicon hydrofluoric acid (H 2 (SiF 6 )) and ethyl alcohol [ 14 , 15 ]. (hindawi.com)
It is then added to the melted silicon and defines the wafer as either bulk p-type or n-type. (articlecube.com)
Many silicon wafer suppliers make these wafers using extrinsic semiconductors for Integrated circuits. (articlecube.com)
To do this, the researchers deposited carbon nanotubes on a silicon wafer as the semiconducting layer in field-effect transistors. (acs.org)
Another problem is that to make the chips, a uniform monolayer of carbon nanotubes needs to be deposited over a wafer. (technologyreview.com)
Defect in a large scale integrated circuit silicon wafer which serves to trap impurities that could cause your computer to fail. (umsl.edu)

Will they be like you and me, made up of carbon and nitrogen? (getpocket.com)

Do not forget that these elements may exist as atoms in other compounds! (kids.net.au)
Consequently, there are only a small number of silicon-containing compounds under current investigation for pharmaceutical use. (pharmiweb.com)

Although theorists had speculated about the existence and possible properties of free-standing silicene, researchers first observed silicon structures that were suggestive of silicene in 2010. (wikipedia.org)
Density functional theory (DFT) calculations showed that silicon atoms tend to form such honeycomb structures on silver, and adopt a slight curvature that makes the graphene-like configuration more likely. (wikipedia.org)
But, Segawa says, the work improves scientists' ability to make tiny carbon structures, especially complicated ones. (sciencenews.org)
Due to the possibility of creating porous structures with desired optical properties, PS is used in the manufacture of solar cells as antireflection textured coatings, which are called "black silicon" [ 3 - 5 ]. (hindawi.com)
To date, silicon has not been well-explored in drug development because it is difficult to synthesize silicon-containing structures. (pharmiweb.com)
Experimental results revealed the formation of a SiO 2 rich layer with a defective transition layer in between it and the SiC, which is characterized by the existence of silicon oxycarbide structures. (lu.se)
rich layer with a defective transition layer in between it and the SiC, which is characterized by the existence of silicon oxycarbide structures. (lu.se)

In silicon, the doping step substitutes atoms of a different material for silicon atoms in the material's lattice. (sciencedaily.com)

Transistors based on germanium can be operated at low supply voltages and reduced power consumption, due to the low band gap compared to silicon. (sciencedaily.com)
To extend future missions, researchers reporting in ACS Nano show that transistors and circuits with carbon nanotubes can be configured to maintain their electrical properties and memory after being bombarded by high amounts of radiation. (acs.org)
One possibility is to include carbon nanotubes in widely used electronic components, such as field-effect transistors. (acs.org)
These single-atom-thick tubes are expected to make transistors more energy efficient compared to more run-of-the-mill silicon-based versions. (acs.org)
Just as with experiments performed on the transistors, these memory chips had a similar X-ray radiation threshold as silicon-based SRAM devices. (acs.org)
A memory chip was made of transistors with carbon nanotubes that maintained their electrical properties and memory after being bombarded by high amounts of radiation. (acs.org)
The electronics industry is struggling with a slowdown in Moore's Law , which holds that the number of transistors that can be packed on a silicon processor doubles roughly every couple of years. (technologyreview.com)
This trend is facing its physical limits: as the sizes of the devices shrink to a few atoms, electrical current is starting to leak from the metallic channels that shuttle it through transistors. (technologyreview.com)
One of the reasons 2D materials can't efficiently transfer heat to silicon is that the interactions between the 2D materials and silicon in components like transistors are rather weak. (electroiq.com)
Our approach works based on fixing the current bias of silicon nanowires Ion Sensitive Field Effect Transistors (ISFETs) and monitor the resulting drain voltage as the sensing signal. (bvsalud.org)

From cylindrical nanotubes to the hollow spheres known as buckyballs, carbon is famous for forming tiny, complex nanostructures ( SN: 8/15/19 ). (sciencenews.org)

The resulting carbon-doped thin films of porous silicon were irradiated on a pulsed electron booster and comparisons were made with nonirradiated films of porous silicon. (hindawi.com)
These impurity atoms perform an operation as either acceptors or donors in the intrinsic semiconductor by changing the hole and electron concentrations of the semiconductor. (articlecube.com)
Graphene is known for its extremely high electron mobility, about 200 times higher than silicon. (allaboutcircuits.com)
Atom-resolution transmission electron microscope at UM-StL. (umsl.edu)

But silicon is heavier, with 14 protons (protons make up the atomic nucleus with neutrons) compared to the six in the carbon nucleus. (getpocket.com)

Silicon atoms outnumber carbon atoms in the Earth's crust more than 1,000-fold, yet the two elements are remarkably alike, chemically speaking. (businessinsider.com)
Silicon is the second-most abundant element in the Earth's crust. (pharmiweb.com)

First, he explained how similar silicon and carbon are: They have the same number of electrons (four) available for bonding. (businessinsider.com)
Electrons are responsible for linking the atoms of the lattice together, so the team looked for a connection between the way electrons are structured in an ordinary lattice atom and an atom at a defect -- and how this changes the way that the lattice interacts with an alloying element. (sciencedaily.com)
But in graphene, you've got this one single layer of carbon atoms and there's not much resistance to the flow of electrons. (allaboutcircuits.com)
You've got a region of space with an abundance of both ionized atoms and free electrons. (scienceblogs.com)
That's why, when you look either at a supernova remnant (like the Veil Nebula, above) or a planetary nebula (like the Ring Nebula, below) -- where recently deceased stars have blown off carbon, oxygen, silicon, neon, and other heavy elements -- you can see a spectacular show of colors as ionized electrons rain down onto these ionized atoms. (scienceblogs.com)
Silicon is similar to carbon , it has four electrons available for creating bonds with other atoms. (getpocket.com)

Additional impacts build upon one another to forge helium-4 and heavier elements like oxygen and carbon. (universetoday.com)

Recent developments aim to maintain this trend by employing materials having higher mobility than silicon in the transistor channel, like germanium and indium-arsenide. (sciencedaily.com)
While our transistor is an experimental model, it proves that by adding an additional, encapsulating layer to these 2D nanoelectronics, we can significantly increase heat transfer to the silicon base, which will go a long way towards preserving functionality of these components by reducing the likelihood that they burn out," said Salehi-Khojin. (electroiq.com)

Graphene sheets have carrier mobilities that are hundreds of times greater than that of silicon, making them ideal for faster chips. (techdirt.com)

It's such an unlikely process that astrophysicists have struggled to explain how carbon and the heavier elements beyond are so abundant in the Universe today. (cosmosmagazine.com)

Silicon wafers are usually not as pure as they are formed with a primary impurity doping concentration between 1013 and 1015 atoms per cm3 of arsenic, phosphorus, boron, or antimony. (articlecube.com)
It also requires phosphorus, which is even more scarcely available than silicon. (deingenieur.nl)

The properties of defects decide mechanical, thermal and irradiation performances of metals because atoms at defects usually have fewer constraints to move around compared with those at perfect positions," he said. (sciencedaily.com)

A metal is mainly composed of a crystal lattice, with the atoms packed together in an orderly way. (sciencedaily.com)
The team found that they could predict how atoms of the alloying element concentrated at various kinds of defects -- including complex types such as high angle grain boundaries, where the lattice is majorly misaligned. (sciencedaily.com)
For silicon and carbon, the 2 molecule form is explosively unstable (because a quadruple covalent bond is unstable because of the bending of orbitals), so the only form would be either some complex lattice (eg. (kids.net.au)

Silicon generally doesn't form unique versions of the same molecule, but carbon often does - and that chemical diversity gives life a lot of room to play. (businessinsider.com)
An organic molecule that has been found to be effective in making silicon-based electronics may be viable for building electronics on sheets of carbon only a single molecule thick. (phys.org)
Herein, we have developed a novel and precise fluorescent sensing method for measuring ß-Gluco activity based on the production of yellow-green fluorescent quercetin-silicon nanoparticles (Q-SiNPs) produced from quercetin (QN) as a reducing agent and 3-[2-(2-aminoethyl amino) ethylamino] propyl-trimethoxy silane (AEEA) as a silane molecule. (bvsalud.org)

Carbon atoms structured in flat plates create crumbly graphite, while carbon atoms structured in tetrahedra create ultra-hard diamonds. (caltech.edu)
Simulated image of atom-thick carbon platelets in the core of an ancient graphite sphere formed in the outer atmosphere of a red giant star, studied in collaboration with researchers at Washington U. (umsl.edu)
Rows of carbon atoms 0.2 nm apart on graphite, viewed with a scanning tunneling microscope at UM-StL. (umsl.edu)

The Cp*Si(+) cation acts as a stoichiometric source of silicon in the reaction with the disilenide Tip(2)Si=Si(Tip)Li (Tip = 2,4,6-(i)Pr(3)C(6)H(2)) affording known neutral unsaturated silicon clusters. (researchgate.net)
Neutral or negatively charged ligands bonded to metal cations or neutral atoms. (bvsalud.org)

Natural diamond is from pure carbon atoms with a uniform crystalline structure. (harcourthealth.com)
Tunnels (white dots) between atoms at an interface between single crystal silicon (top) and a non-crystalline surface layer. (umsl.edu)

Since 2020, Fuzionaire affiliate Fuzionaire Diagnostics has been working with McGill in the development of a library of heteroaromatic silicon-fluoride acceptors, or HetSiFAs ® , as a platform to make diagnostic and theranostic radiopharmaceuticals. (pharmiweb.com)

Around 90 percent of the Earth is made up of silicon, iron, magnesium and oxygen, which means there's lots to go around for building potential life. (getpocket.com)

Helium can also be found in the Sun (7.8% of the number of atoms and 25% of the mass). (nasa.gov)
This gas does not contain metals unlike the gas in galaxies - in astronomy, all chemical elements heavier than helium are collectively called "metals", although they are atoms in gaseous form. (scienceblog.com)
Stars produce carbon via the triple-alpha process, which requires three helium nuclei (otherwise known as alpha particles) to collide and fuse in a blindingly tiny fraction of a second. (cosmosmagazine.com)

Clays generally consist of sheets made of aluminium, silicon and oxygen atoms, which are stacked on top of one another. (bioedonline.org)

The silicon wafers can also be formed with some interstitial oxygen concentration in which metallic contamination and Carbon are kept to a minimum transition. (articlecube.com)

This new bioengineering by Caltech researchers, described in the journal Science , may not improve the prospects of silicon-based alien life - contrary to a colorful illustration sent to members of the press (shown here) - but it could enable biologists to ask sci-fi-level questions. (businessinsider.com)
Now, Max Planck Institute researchers have found that the compound F4-TCNQ (tetrafluoro-tetracyanoquinodimethane), which has been proven effective for producing LEDs in silicon, seems to fit the bill for graphene as well. (phys.org)
By combining the results, the researchers found that carbon is created 34% faster than previously thought - a huge jump. (cosmosmagazine.com)
Sandwiching two-dimensional materials used in nanoelectronic devices between their three-dimensional silicon bases and an ultrathin layer of aluminum oxide can significantly reduce the risk of component failure due to overheating, according to a new study published in the journal of Advanced Materials led by researchers at the University of Illinois at Chicago College of Engineering. (electroiq.com)

Our story begins lightyears away, deep in the heart of a sun-like star, where gravity's immense inward pressure keeps temperatures high and atoms disassembled. (universetoday.com)
As Dr. Galanis explained, "The charge carriers in silicon don't have much energy at cryogenic temperatures, so they encounter a lot of resistance moving through the material. (allaboutcircuits.com)

The average density of the Solar Wind is 4.0 atoms per cubic centimeter. (hypertextbook.com)
Global Titanium Silicon Alloy Market Titanium silicon alloy material is a high melting point intermetallic compound with low density and good oxidation resistance. (openpr.com)

But small defects, such as dislocations of several rows of atoms, can improve a metal's performance by enabling it to bend, for example. (sciencedaily.com)

In graphene, on the other hand, dopants are generally deposited on top of the carbon sheet rather than taking the place of some of the carbon atoms . (phys.org)

Ultrathin carbon layers known as graphene show promise as the basis for a host of extremely small and efficient electronic devices. (phys.org)
In order to enhance the connection between the 2D material and the silicon base to improve heat conductance away from the 2D material into the silicon, engineers have experimented with adding an additional ultra-thin layer of material on top of the 2D layer - in effect creating a "nano-sandwich" with the silicon base and ultrathin material as the "bread. (electroiq.com)

In this paper, the results of atomic layer deposition (ALD) of lithium-nickel-silicon oxide thin films using lithium hexamethyldisilazide (LiHMDS) and bis(cyclopentadienyl) nickel (II) (NiCp 2 ) as precursors and remote oxygen plasma as a counter-reagent are reported. (mdpi.com)

Silicene is a two-dimensional allotrope of silicon, with a hexagonal honeycomb structure similar to that of graphene. (wikipedia.org)
Graphene is an allotrope of carbon and its 2D structure measures just one atom thick. (windows.com)

Doping processes used for graphene are likely to be significantly different from those established for silicon use, Murali said. (sciencedaily.com)
The results of the SPM showed that the roughness of the samples increases after carbon doping on the surface of porous silicon. (hindawi.com)
Doping of nanostructured silicon with carbon-containing materials is in demand from the point of view of creating wide-gap materials. (hindawi.com)
During the doping process, impurity atoms are introduced to an intrinsic semiconductor. (articlecube.com)
An n-type or negative-type extrinsic silicon semiconductor is a semiconducting substance that is formed by doping silicon with an n-type element. (articlecube.com)
A p-type or positive-type extrinsic silicon semiconductor is a semiconducting material that is formed by doping silicon with a p-type element, such as Gallium, Aluminium and Boron. (articlecube.com)
But in order to create a useful component, the electronic properties of materials like silicon or graphene must be tailored through a doping process. (phys.org)

In the work, porous silicon with observed photoluminescence was made from a p-type silicon substrate doped with boron and crystallographic orientation (100) using the method of electrochemical etching in a solution containing H 2 (SiF 6 ) (silicon hydrofluoric acid) and ethyl alcohol. (hindawi.com)
Bonds between the 2D materials and the silicon substrate are not very strong, so when heat builds up in the 2D material, it creates hot spots causing overheat and device failure," explained Zahra Hemmat, a graduate student in the UIC College of Engineering and co-first author of the paper. (electroiq.com)

In the flourishing chemistry of divalent silicon, π-complex formation between silicon and the pentamethylcyclopentadienyl (Cp*) group is one of the successful strategies for thermodynamic and/or kinetic stabilization. (researchgate.net)
The potential upside of using silicon in therapeutics has been recognized for decades, but progress in developing silicon drugs has been impeded, in part, by a lack of general methods to create organosilicon scaffolds," said Jean-Philip Lumb, PhD, Associate Professor of Chemistry at McGill. (pharmiweb.com)
The expertise of McGill and the Lumb Lab in silicon chemistry is longstanding. (pharmiweb.com)

Graphene, a single-atom-thick layer of carbon atoms bonded together in a graphitic structure, has been widely studied for its interesting mechanical, chemical, and electronic properties. (techdirt.com)
A team of academics at MIT has unveiled the world's most advanced chip yet that's made from carbon nanotubes-cylinders with walls the width of a single carbon atom. (technologyreview.com)
Incorporating 2D materials like graphene - which is composed of a single-atom-thick layer of carbon atoms - into these components allows them to be several orders of magnitude smaller than if they were made with conventional, 3D materials. (electroiq.com)

Given such constraints, carbon can and silicon can't. (businessinsider.com)

So if there were viable silicon lifeforms here, they may have evolved elsewhere. (getpocket.com)

At present, semiconductor diode uses doped germanium or silicon. (articlecube.com)

It's predicted to replace silicon as the base for all electronics. (windows.com)
As "the end of Moore's Law" looms ahead, it would appear that people are beginning to shift some of their focus to new alternative technologies that could potentially replace silicon in chips. (techdirt.com)

By adding another 'encapsulating' layer on top of the 2D material, we have been able to double the energy transfer between the 2D material and the silicon base," Salehi-Khojin said. (electroiq.com)
According to theoretical calculations, such states are mainly due to the formation of silicon oxicarbides within the interfacial layer. (lu.se)

A band of carbon atoms (located at the corner of each hexagon in this illustration) twists to form a tiny Möbius strip. (sciencenews.org)
Artist's impression of a silicon-based life form. (getpocket.com)
While carbon can create strong double and triple bonds to form long chains useful for many functions, such as building cell walls, it is much harder for silicon. (getpocket.com)

Unlike carbon atoms in graphene, silicon atoms tend to adopt sp3 hybridization over sp2 in silicene, which makes it highly chemically active on the surface and allows its electronic states to be easily tuned by chemical functionalization. (wikipedia.org)
They place the material onto a surface of oxidized silicon, then fabricate a four-point contact device. (sciencedaily.com)
Thin carbon films were sprayed by high-frequency magnetron sputtering at room temperature onto the surface of porous silicon. (hindawi.com)
These properties are to a large extent determined by how termination atoms are arranged on the surface of the two-dimensional sheet, which also makes MXenes highly customisable. (lu.se)
Bildtext: Water droplets on a silicon surface. (lu.se)

Impurity atoms are classified as donor or acceptor atoms based on the consequences they have on the intrinsic semiconductor. (articlecube.com)

Upon further increase of silicon coverage, the alloy is covered by silicene, yet pervasivley exists for all coverages. (wikipedia.org)

They are further mixed with the atoms of various elements used in semiconductors. (articlecube.com)
When a star that has reached the end of its life explodes, it expels the metals it has produced, such as iron, zinc, carbon and silicon, feeding these elements into the gas of the galaxy. (scienceblog.com)
It involves taking into account the total composition of the gas and dust by simultaneously observing several elements such as iron, zinc, titanium, silicon and oxygen", explains the Geneva researcher. (scienceblog.com)
It would affect our understanding of how stars change over time, how they produce elements heavier than carbon, how we measure the age of stars and how long they will last, how often we expect to see supernova explosions, even whether they leave behind neutron stars or black holes. (cosmosmagazine.com)
Further studying the production of carbon and other elements will not only improve our knowledge of stellar evolution, but also our understanding of life itself-since carbon is a chemical basis of all life as we know it. (cosmosmagazine.com)

Porous silicon (PS) is a promising material due to its high mechanical and thermal properties, its obvious compatibility with silicon microelectronics and luminescence efficiency at room temperature and low cost. (hindawi.com)
Beyond that, the material also has an extremely high thermal conductivity of 4000 Wm−1 K−1, which is also much better than silicon. (allaboutcircuits.com)

In the system 1-sila-2,4-cyclohexadiene (l)/tert-butyllithium/trimethylchlorosilane the following reaction types have been observed: nucleophilic substitution, metallation, addition of tert-butyllithium to the diene fragment, addition of lithium hydride to the diene fragment, silicon-carbon bond cleavage, and transmetallation. (researchgate.net)

Matter is physical substance that occupies space, has mass, is composed of atoms - or, in the case of subatomic particles, is part of an atom - and is convertible to energy. (encyclopedia.com)
Yet life as we know it is organic, or based on carbon - from DNA to proteins to how it stores and uses energy. (businessinsider.com)
He predicted the existence of an exotic, excited state of carbon that nearly matches the energy of the triple-alpha process. (cosmosmagazine.com)
An example is intercalating atoms between MXene sheets for energy storage applications such as anodes in supercapacitors and batteries. (lu.se)

Silicon-silicon bonds are also twice as weak as carbon-carbon bonds, which causes all sorts of problems as they are linked up (compared to carbon). (businessinsider.com)
A few years ago, scientists at Caltech managed to breed a bacterial protein that created bonds with silicon - essentially bringing silicon to life . (getpocket.com)

Many of today's silicon-based electronic components contain 2D materials such as graphene. (electroiq.com)
This is because of poor heat conductance from 2D materials to the silicon base. (electroiq.com)

Now, scientists have added a new geometry to the list: a twisted strip called a Möbius carbon nanobelt. (sciencenews.org)
Scientists have coaxed life to do something it has never done before: bond silicon to carbon. (businessinsider.com)
Scientists at Rice University and other Texas Medical Center institutions and colleagues in Colorado, Italy and Switzerland have discovered a way to trap contrast agents inside a silicon particle that, when injected into a patient's bloodstream, would make them up to 50 times more effective. (nanowerk.com)

As we move towards smaller and faster computing devices, the use of silicon in chips is making it increasingly difficult to uphold Moore's Law, not only in terms of the laws of physics, but also in terms of economics . (techdirt.com)
The oxygen we breathe, the silicon in our devices and the calcium, carbon and iron in our bodies were all created in the heart of a distant, dying star. (cosmosmagazine.com)

The work is a collaboration between the labs of Mauro Ferrari and Paolo Decuzzi, who reported their success in creating mesoporous silicon particles in 2008. (nanowerk.com)

To understand the effect of carbon on the properties of porous silicon films samples were analyzed by Raman spectroscopy, spectrophotometry, and scanning probe microscopy (SPM). (hindawi.com)
Light-emitting properties arising from the effects of quantum confinement, biodegradability, and biological activity of nanostructured silicon are used in many areas of biomedical and pharmaceutical research, in particular as biomarkers and agents for targeted drug delivery, including prolonged action [ 6 , 7 ]. (hindawi.com)
The team found that placing shields both above and below the carbon nanotubes protected the transistor's electrical properties against incoming radiation up to 10 Mrad - a level much higher than most silicon-based radiation-tolerant electronics can handle. (acs.org)
Belonging to the same group in the periodic table as carbon, silicon shares many of its properties, including biocompatibility and low toxicity. (pharmiweb.com)
Because of slight structural differences, a carbon/silicon switch can modify the biological properties of a drug and potentially enhance its efficacy and safety. (pharmiweb.com)
Existing drugs that are currently disfavored because of poor biochemical or pharmacokinetic properties could be converted into new silicon forms and used to treat a wide array of diseases. (pharmiweb.com)

Recently, it was demonstrated that memristors - resistors with memory - could perform logic operations, and it has even been predicted that memristor-based processors could one day replace the silicon in e-reader displays, as well as in computers. (techdirt.com)

For every 2500 Hoyle state nuclei produced, only one transitions to stable carbon," Kibédi explains. (cosmosmagazine.com)
Direct measurement of the rate of carbon production rate is tricky, so Kibédi and colleagues calculated it indirectly by observing two transitions within the Hoyle state - one using ANU's Heavy Ion Accelerator Facility and the other using the University of Oslo's Cyclotron Laboratory. (cosmosmagazine.com)

The manufacture of abacavir sulfate, which contains two chiral carbon atoms, entails several chemical steps. (who.int)

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Oxygen and carbon1

Transistor2

Graphene sheets1

Heavier elements1

Phosphorus2

Irradiation1

Lattice3

Molecule3

Graphite3

Neutral2

Crystalline2

20201

Magnesium1

Helium3

Consist1

Metallic1

Researchers4

Temperatures2

Density2

Rows1

Dopants1

Ultrathin2

Atomic1

Allotrope2

Doping7

Substrate2

Chemistry3

Single3

Constraints1

Viable1

Germanium1

Replace silicon2

Layer2

Form3

Surface5

Semiconductor1

Alloy1

Elements5

Material2

Lithium1

Energy4

Bonds2

Materials2

Scientists3

Devices2

Particles1

Properties6

Processors1

Transitions2

Chemical1