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Chemical computer

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07.11.2018
22:40 ScienceDaily.comA molecular switch links a Scottish mouse, a Finnish patient and Parkinson's disease

Researchers have made an unexpected and vital contribution to an international collaborative effort in Parkinson's disease research.

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19.10.2018
21:58 ScienceDaily.comNanocages in the lab and in the computer: How DNA-based dendrimers transport nanoparticles

How to create nanocages, i.e., robust and stable objects with regular voids and tunable properties? Short segments of DNA molecules are perfect candidates for the controllable design of novel complex structures. Physicists investigated methodologies to synthesize DNA-based dendrimers in the lab and to predict their behavior using detailed computer simulations.

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18.10.2018
18:01 Phys.orgNanocages in the lab and in the computer: how DNA-based dendrimers transport nanoparticles

How to create nanocages, i.e., robust and stable objects with regular voids and tunable properties? Short segments of DNA molecules are perfect candidates for the controllable design of novel complex structures. Physicists from the University of Vienna, the Technical University of Vienna, the Jülich Research Center in Germany and Cornell University in the U.S.A., investigated methodologies to synthesize DNA-based dendrimers in the lab and to predict their behavior using detailed computer simulations. Their results are published in Nanoscale.

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17:37 Nanowerk.comNanocages in the lab and in the computer: How DNA-based dendrimers transport nanoparticles

Physicists investigated methodologies to synthesize DNA-based dendrimers in the lab and to predict their behavior using detailed computer simulations.

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21.08.2018
22:41 ScienceDaily.comPreparing for chemical attacks with improved computer models

Researchers have used computer models on the Stampede2 supercomputer to replicate the dispersal of gases from the April 4, 2017 chemical weapons attack in northwest Syria. The simulations were able to capture real world conditions despite a scarcity of information. Recently, the team developed a coarse model that uses seasonal conditions as background information to speed up calculations, reducing forecasting time from days to minutes.

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15.08.2018
21:10 ScienceDaily.comA molecular switch may serve as new target point for cancer and diabetes therapies

If certain signaling cascades are misregulated, diseases like cancer, obesity and diabetes may occur. A mechanism recently discovered has a crucial influence on such signaling cascades and may be an important key for the future development of therapies against these diseases.

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17:55 Phys.orgMolecular switch detects metals in the environment

An international team led by researchers from the University of Geneva (UNIGE), Switzerland, has designed a family of molecules capable of binding to metal ions present in the surrounding environment and providing an easily detectable light signal during binding. This new type of sensor forms a 3-D structure whose molecules are chiral, that is to say, structurally identical but not superimposable, like the left and right hands. These molecules consist of a ring and two luminescent arms that emit a particular type of light in a process called Circular Polarized Luminescence (CPL), and selectively detect ions such as sodium. This research has been published in Chemical Science.

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17:11 Phys.orgA molecular switch may serve as new target point for cancer and diabetes therapies

If certain signaling cascades are misregulated, diseases like cancer, obesity and diabetes may occur. A mechanism recently discovered by scientists at the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) in Berlin and at the University of Geneva has a crucial influence on such signaling cascades and may be an important key for the future development of therapies against these diseases. The results of the study have just been published in the prestigious scientific journal Molecular Cell.

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16:34 ScienceDaily.comMolecular switch detects metals in the environment

Researchers have designed a family of molecules capable of binding to metal ions present in its environment and providing an easily detectable light signal during binding. This new type of sensor forms a 3D structure whose molecules consist of a ring and two luminescent arms that emit a particular type of light in a process called circular polarized luminescence, and detect ions, such as sodium.

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11.08.2018
03:25 ScientificAmerican.ComComputerized Chemical Toxicity Prediction Beats Animal Testing

Researchers programmed a computer to compare structures and toxic effects of different chemicals, making it possible to then predict the toxicity of new chemicals based on their structural similarity... -- Read more on ScientificAmerican.com

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24.07.2018
18:39 ScienceDaily.comWorld-first quantum computer simulation of chemical bonds using trapped ions

Simulation of chemical bonds and reactions is expected to be one of the first applications for at-scale quantum computers. Physicists have now demonstrated the world-first simulation of a chemical bond using trapped ion qubits, one of the most promising pathways to full-scale quantum computing.

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18:23 Phys.orgWorld-first quantum computer simulation of chemical bonds using trapped ions

An international group of researchers has achieved the world's first multi-qubit demonstration of a quantum chemistry calculation performed on a system of trapped ions, one of the leading hardware platforms in the race to develop a universal quantum computer.

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06.07.2018
20:10 Nature.ComPodcast: A DNA computer, the koala genome, and the issues facing LGBTQ+ researchers

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13.06.2018
20:30 LiveScience.comU.S. Spy Agencies Want to Store Data on DNA Computers

DNA and other stringy molecules could store data much more efficiently than hard drives in modern computers.

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05.06.2018
19:00 ScienceDaily.comComputer simulations identify chemical key to diabetes drug alternatives

Scientists have discovered a chemical compound that could lower sugar levels as effectively as the diabetes drug metformin but with a lower dose.

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25.05.2018
13:03 Phys.orgMolecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. These can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

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11.05.2018
03:30 ScienceDaily.comChemists develop molecular switch for on-demand cargo release

Chemists have found a molecular switch such that two compounds that would readily react with each other can be in the same solution, separated by a very thin membrane and kept from reacting with each other until a molecular switch is thrown.

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04.05.2018
22:38 QuantaMagazine.orgSolution: ‘The DNA Computer Program’

Computer code serves as a useful analogy for what our genes do, but the complexity and messiness of life go well beyond simple analogies and mathematical models.

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30.03.2018
13:06 Phys.orgChemical synthesis with artificial intelligence: Researchers develop new computer method

In 1996, when a computer won a match against reigning world chess champion Garry Kasparov, it was nothing short of a sensation. After this breakthrough in the world of chess, the board game Go was long considered to be a bastion reserved for human players due to its complexity. But the world's best players cannot compete with the AlphaGo software. The recipe for the success of this computer program is made possible through a combination of the so-called Monte Carlo Tree Search and deep neural networks based on machine learning and artificial intelligence. A team of researchers from the University of Muenster in Germany has now demonstrated that this combination is extremely well suited to planning chemical syntheses—so-called retrosyntheses—with unprecedented efficiency. The study has been published in the current issue of Nature.

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29.03.2018
19:12 ScienceDaily.comChemical synthesis with artificial intelligence: Researchers develop new computer method

The board game Go was long considered to be a bastion reserved for human players due to its complexity. Now, however, the world's best players no longer have any chance of winning against the 'AlphaGo' software. Researchers have now demonstrated that the recipe for the success of this software can be put to excellent use to plan chemical syntheses.

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13.03.2018
10:33 Technology.orgSDSC Simulations Reveal How a Heart Drug Molecular Switch Is Turned On and Off

Armed with a “robust” computational approach that stretches the amount of time needed to capture the gyrations of

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02.02.2018
14:26 Phys.orgPhotoreversible molecular switch changes the physical property of thermoresponsive polymer

Researchers have developed a novel strategy to control the shapes of polymeric materials by utilizing photoresponsive molecular switches, which may evolve tractable stimuli-responsive soft materials.

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01.02.2018
22:15 ScienceDaily.comPhotoreversible molecular switch changes the physical property of thermoresponsive polymer

Researchers have developed a novel strategy to control the shapes of polymeric materials by utilizing photoresponsive molecular switches, which may evolve tractable stimuli-responsive soft materials.

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29.11.2017
17:40 Phys.orgBio-computer powered by jellyfish DNA plays Tetris and other retro videogames

An Imperial alumus has developed a bio-pixel display that can play games such as Tetris, Snake or Pong using the protein that makes jellyfish glow

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05.10.2017
19:01 ScienceDaily.comComputer model unravels knotty problems in DNA

If you've ever tried to untangle a pair of earbuds, you'll understand how loops and cords can get twisted up. DNA can get tangled in the same way, and in some cases, has to be cut and reconnected to resolve the knots. Now a team of mathematicians, biologists and computer scientists has unraveled how E. coli bacteria can unlink tangled DNA by a local reconnection process. The math behind the research could have implications far beyond biology.

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11.08.2017
04:51 Gizmag Researchers hack computer using malware encoded in synthetic DNA


In what they're calling the first evidence of a DNA-based exploit of a computer system, a team of scientists have successfully shown that a computer can be hacked through malicious code incorporated into synthetic DNA. While the exploit is still essentially hypothetical, with no evidence there are such threats currently in the wild, it does expose a major security flaw that could pose a significant problem in the future.
.. Continue Reading Researchers hack computer using malware encoded in synthetic DNA Category: Computers Tags: Computer DNA Hack Security Virus Related Articles: Is the "NotPetya" ransomware a Russian cyberattack in disguise? DroneSentry jamming system open for orders Pentagon puts the call out to hackers to test its cyber defences Department of Defense doles out $70k to white-hat hackers World's first autonomous security vehicle with companion drone Air-gapping is

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10.08.2017
21:27 Yahoo ScienceThese Scientists Took Over a Computer by Encoding Malware in DNA

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07:06 TechnologyReview.comScientists Hack a Computer Using DNA

Malware can be encoded into a gene and used to take over a computer program.

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02.08.2017
18:07 ScienceDaily.comClarifiying complex chemical processes with quantum computers

Science and the IT industry have high hopes for quantum computing, but descriptions of possible applications tend to be vague. Researchers have now come up with a concrete example that demonstrates what quantum computers will actually be able to achieve in the future.

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31.07.2017
14:13 Phys.orgClarifiying complex chemical processes with quantum computers

Science and the IT industry have high hopes for quantum computing, but descriptions of possible applications tend to be vague. Researchers at ETH Zurich have now come up with a concrete example that demonstrates what quantum computers will actually be able to achieve in the future.

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28.06.2017
18:21 Technology.orgComputer system predicts products of chemical reactions

Machine learning approach could aid the design of industrial processes for drug manufacturing. When organic chemists identify a

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25.05.2017
13:50 Nanowerk.comSuccessful use of DNA as a computer in artificial cells

Researchers have succeeded in detecting output molecules that are the calculation results of DNA computing using DNA molecules as electric information through a nanopore membrane protein.

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14.03.2017
02:03 Yahoo ScienceA DNA computer has a trillion siblings and replicates itself to make a decision

Think of a computer. You’re probably imagining a smartphone or laptop, or even one of Google or Amazon’s huge server buildings if you’re in the know about the physical internet. Those modern computers serve us well, but in the future, the word “computer” may conjure images of something much more…squishy. Researchers from the University of…

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10.03.2017
18:15 Phys.orgResearch team presents a molecular switch so far unmatched in its reproducibility

The theoretical physicists Junior Professor Fabian Pauly and his postdoc Dr. Safa G. Bahoosh now succeeded in a team of experimental physicists and chemists in demonstrating a reliable and reproducible single molecule switch. The basis for this switch is a specifically synthesized molecule with special properties. This is an important step towards realising fundamental ideas of molecular electronics. The results were published in the online journal Nature Communications on 9 March 2017.

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03:37 Nanowerk.comThe prototype of a chemical computer detects a sphere (w/video)

It turns out that after an appropriate teaching procedure even a relatively simple chemical system can perform non-trivial operations. In their most recent computer simulations researchers have shown that correctly programmed chemical matrices of oscillating droplets can recognize the shape of a sphere with great accuracy.

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09.03.2017
23:53 ScienceDaily.comThe prototype of a chemical computer detects a sphere

Chemical computers are becoming ever more of a reality. It turns out that after an appropriate teaching procedure even a relatively simple chemical system can perform non-trivial operations. In their most recent computer simulations researchers have shown that correctly programmed chemical matrices of oscillating droplets can recognize the shape of a sphere with great accuracy.

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07.03.2017
22:17 ScienceDaily.comComputer simulations first step toward designing more efficient amine chemical scrubbers

A proof-of-concept molecular modeling study that analyzes the efficiency of amine solutions in capturing carbon dioxide is the first step toward the design of cheaper, more efficient amine chemicals for capturing carbon dioxide -- and reducing harmful CO2 emissions -- in industrial installations.

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20:38 Phys.orgComputer simulations first step toward designing more efficient amine chemical scrubbers

A proof-of-concept molecular modeling study from North Carolina State University analyzes the efficiency of amine solutions in capturing carbon dioxide. This series of new computer models is the first step toward the design of cheaper, more efficient amine chemicals for capturing carbon dioxide - and reducing harmful CO2 emissions - in industrial installations.

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04.03.2017
01:30 Yahoo ScienceThis Speck of DNA Contains a Movie, a Computer Virus, and an Amazon Gift Card

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03.03.2017
14:14 Yahoo ScienceScientists Build New Computer Made of DNA

The computer can copy itself many times over, making calculations much faster.

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00:12 Yahoo ScienceResearchers reveal a DNA-based super fast computer that grows as it computes

Researchers claim it is possible to build a super-fast computer that "grows as it computes". A team of scientists, led by professor Ross D King from the University of Manchester, has demonstrated the feasibility of engineering a nondeterministic universal Turing machine (NUTM). DNA molecules are small, highly stable and come with self-replicating abilities, making them ideal candidates for the processors of future organic computers.

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02.03.2017
23:53 ScienceDaily.comResearchers store computer operating system and short movie on DNA

An algorithm designed for streaming video on a cellphone can unlock DNA's nearly full storage potential by squeezing more information into its four base nucleotides, say researchers. They demonstrate that this technology is also extremely reliable.

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22:09 Phys.orgResearchers store computer operating system and short movie on DNA

Humanity may soon generate more data than hard drives or magnetic tape can handle, a problem that has scientists turning to nature's age-old solution for information-storage—DNA.

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17.02.2017
21:21 ScienceDaily.comDNA computer brings 'intelligent drugs' a step closer

Researchers present a new method that should enable controlled drug delivery into the bloodstream using DNA computers. The team developed the first DNA computer capable of detecting several antibodies in the blood and performing subsequent calculations based on this input. This is an important step towards the development of smart, 'intelligent' drugs that may allow better control of medication with fewer side-effects and at lower cost.

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16:10 Nanowerk.comDNA computer brings 'intelligent drugs' a step closer

Researchers present a new method that should enable controlled drug delivery into the bloodstream using DNA computers.

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14:18 Phys.orgDNA computer brings 'intelligent drugs' a step closer

Researchers at Eindhoven University of Technology (TU/e) present a new method for controlled drug delivery into the bloodstream using DNA computers. In the journal Nature Communications, the team, led by biomedical engineer Maarten Merkx, describes how it has developed the first DNA computer capable of detecting several antibodies in the blood and performing subsequent calculations based on this input. This is an important step toward the development of smart drugs for better delivery of medication for conditions such as rheumatism and Crohn's disease, with fewer side effects and at lower cost.

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15.02.2017
16:18 Phys.orgMolecular switch drives powerful movement by opposing twisting helices

Plants are capable of producing powerful movement that is initiated at the molecular level. This fast motion is often supported by helix-based architectures, for example in vetches or orchids that spread seeds by explosive opening of their pods. Researchers now demonstrate in the journal Angewandte Chemie that these biological strategies can be re-engineered by interfacing molecular switches with man-made materials.

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01.02.2017
21:40 Nature.ComCorrigendum: PI3Kγ is a molecular switch that controls immune suppression

Nature539, 437–442 (2016); doi:10.1038/nature19834In this Letter, the Gene Expression Omnibus (GEO) accession number for the RNA sequencing data (for in vivo tumour and tumour-associated macrophage samples) was incorrectly listed in the ‘Data availability’ section as

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29.11.2016
20:30 ScienceDaily.comA molecular switch between life, sex and death

Shortly after mating, marine bristle worms die, leaving thousands of newly fertilized eggs to develop in the water. This extreme all-or-nothing mode of reproduction demonstrates a general principle: Animals need to decide if they invest their available energy stores either in growth or in reproduction. Researchers are now able to solve a 60-year-old riddle and determine the molecule that orchestrates this decision in marine bristle worms.

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16:20 Phys.orgA molecular switch between life, sex and death

"Till death do us part" – for marine bristle worms, these words are invariably true: Shortly after mating, the parent worms die, leaving thousands of newly fertilized eggs to develop in the water. This extreme all-or-nothing mode of reproduction demonstrates a general principle: Animals need to decide if they invest their available energy stores either in growth or in reproduction. Researchers around Florian Raible at the Max F. Perutz Laboratories (MFPL) of the University of Vienna and Medical University of Vienna were now able to solve a 60-year-old riddle and determine the molecule that orchestrates this decision in marine bristle worms. Their results are published in the journal eLife.

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16.11.2016
22:23 Nature.ComPI3Kγ is a molecular switch that controls immune suppression

Macrophages play critical, but opposite, roles in acute and chronic inflammation and cancer. In response to pathogens or injury, inflammatory macrophages express cytokines that stimulate cytotoxic T cells, whereas macrophages in neoplastic and parasitic diseases express anti-inflammatory cytokines that induce immune suppression and may promote resistance to T cell checkpoint inhibitors. Here we show that macrophage PI 3-kinase γ controls a critical switch between immune stimulation and suppression during inflammation and cancer. PI3Kγ signalling through Akt and mTor inhibits NFκB activation while stimulating C/EBPβ activation, thereby inducing a transcriptional program that promotes immune suppression during inflammation and tumour growth. By contrast, selective inactivation of macrophage PI3Kγ stimulates and prolongs NFκB activation and inhibits C/EBPβ activation, thus promoting an

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09.11.2016
17:56 Phys.orgComputers made of genetic material? Researchers conduct electricity using DNA-based nanowires

Tinier than the AIDS virus—that is currently the circumference of the smallest transistors. The industry has shrunk the central elements of their computer chips to fourteen nanometers in the last sixty years. Conventional methods, however, are hitting physical boundaries. Researchers around the world are looking for alternatives. One method could be the self-organization of complex components from molecules and atoms. Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Paderborn University have now made an important advance: the physicists conducted a current through gold-plated nanowires, which independently assembled themselves from single DNA strands. Their results have been published in the scientific journal Langmuir.

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14.10.2016
19:31 Phys.orgComputer taught to intuitively predict chemical properties of molecules

Scientists from MIPT's Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, together with Inria research center, Grenoble, France, have developed a software package called Knodle to determine an atom's hybridization, bond orders and functional groups' annotation in molecules. The program streamlines one of the stages of developing new drugs. A paper on the new development has been published in the Journal of Chemical Information and Modeling.

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18:11 Nanowerk.comComputer taught to intuitively predict chemical properties of molecules

Scientists have developed a software package called Knodle to determine an atom's hybridization, bond orders and functional groups' annotation in molecules.

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20.09.2016
12:14 ScienceDaily.comMolecular switch controlling immune suppression may help turn up immunotherapies

A strategy to maximize the effectiveness of anti-cancer immune therapy has been developed by a group of researchers who have identified a molecular switch that controls immune suppression. This discovery opens the possibility to further improving and refining emerging immunotherapies that boost the body’s own abilities to fight diseases ranging from cancer to Alzheimer’s and Crohn’s disease.

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04:37 Technology.orgMolecular Switch Controlling Immune Suppression May Help Turn Up Immunotherapies

Researchers at University of California San Diego School of Medicine and Moores Cancer Center have identified a strategy
The post Molecular Switch Controlling Immune Suppression May Help Turn Up Immunotherapies has been published on Technology Org.

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30.08.2016
12:50 ScienceDaily.comMolecular switch may sensitize triple-negative breast cancers to immunotherapy

A new study offers compelling evidence that enzyme PRL-3 is 'switch' in TNF-R1 pathway, determining whether pathway helps cancer cells survive or die when challenged with immunotherapy.

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01.08.2016
08:18 Technology.orgStudy Finds Molecular Switch That Triggers Bacterial Pathogenicity

Scientists have revealed for the first time the molecular steps that turn on bacteria’s pathogenic genes. Using an
The post Study Finds Molecular Switch That Triggers Bacterial Pathogenicity has been published on Technology Org.

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29.07.2016
22:38 ScienceDaily.comResearchers find molecular switch that triggers bacterial pathogenicity

The supercoiling of bacterial chromosomes around histone-like proteins can trigger the expression of genes that make the microbe invasive, new research shows. The discovery could provide a new target for the development of drugs to prevent or treat bacterial infection, say scientists.

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21:13 Phys.orgResearchers find molecular switch that triggers bacterial pathogenicity

Scientists have revealed for the first time the molecular steps that turn on bacteria's pathogenic genes. Using an array of high-powered X-ray imaging techniques, the researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) showed that histone-like proteins that bind to DNA are related to the physical twisting of the genetic strand, and that the supercoiling of the chromosome can trigger the expression of genes that make a microbe invasive.

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15.07.2016
19:28 ScienceDaily.comMolecular switch for controlling color, fluorescence

Researchers have developed a molecular switching technique to control the visible color and fluorescent properties of a compound by using hydrogen and oxygen gas. This innovative work is environmentally friendly since it uses the energy from the two gases to switch the color and fluorescence of a compound and produces only water as a byproduct.

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17:33 Phys.orgMolecular switch for controlling color and fluorescence

A collaboration of researchers from Kumamoto, Yamaguchi, and Osaka Universities in Japan have discovered a new method of drastically changing the color and fluorescence of a particular compound using only oxygen (O2) and hydrogen (H2) gases. The fully reversible reaction is environmentally friendly since it produces only water as a byproduct. Rather than using electrical or photo energy, the discovery uses energy from the gases themselves, which is expected to become a future trend, to switch the color and fluorescence properties. The technique could be used as a detection sensor for hydrogen or oxygen gases as well as for property controls of organic semiconductors and organic light emitting diodes (OLEDs).

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14.07.2016
14:30 Phys.orgComputer simulation renders transient chemical structures visible

Chemists at the University of Basel have succeeded in using computer simulations to elucidate transient structures in proteins. In the journal Angewandte Chemie, the researchers set out how computer simulations of details at the atomic level can be used to understand proteins' modes of action.

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07.07.2016
08:21 Technology.orgChemists show new way to operate a single molecular switch

Researchers at the University of Liverpool are part of an international team that have shown a new way
The post Chemists show new way to operate a single molecular switch has been published on Technology Org.

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07.06.2016
23:23 SingularityHub.ComFrom Living Computers to Nano-Robots: How We’re Taking DNA Beyond Genetics

DNA is one of the most amazing molecules in nature, providing a way to carry the instructions needed to create almost any life form on... read more

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17:18 Phys.orgFrom living computers to nano-robots: how we're taking DNA beyond genetics

DNA is one of the most amazing molecules in nature, providing a way to carry the instructions needed to create almost any lifeform on Earth in a microscopic package. Now scientists are finding ways to push DNA even further, using it not just to store information but to create physical components in a range of biological machines.

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15:52 Nanowerk.comFrom living computers to nanorobots: how we're taking DNA beyond genetics

DNA is one of the most amazing molecules in nature, providing a way to carry the instructions needed to create almost any lifeform on Earth in a microscopic package. Now scientists are finding ways to push DNA even further, using it not just to store information but to create physical components in a range of biological machines.

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