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Chemistry - News Gazette
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How a single chemical bond balances cells between life and death

Added: 23.06.2017 11:28 | 0 views | 0 comments

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With SLAC's X-ray laser and synchrotron, scientists measured exactly how much energy goes into keeping a crucial chemical bond from triggering a cell's death spiral.

Source: feeds.sciencedaily.com

A unique amino acid for brain cancer therapy

Added: 23.06.2017 8:50 | 0 views | 0 comments

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Photodynamic therapy is often used to treat brain tumors because of its specificity — it can target very small regions containing cancerous cells while sparing the normal cells around it from damage. It works by injecting a drug called a photosensitizer into the bloodstream, where it gathers in cells, and then exposing the drug-filled cells to light. When the photosensitizer is exposed to this light, it emits what is known as a reactive oxygen species (ROS) that causes the cells to die.

Source: feeds.sciencedaily.com

New efficient, low-temperature catalyst for hydrogen production

Added: 22.06.2017 23:24 | 0 views | 0 comments

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Scientists have developed a new low-temperature catalyst for producing high-purity hydrogen gas while simultaneously using up carbon monoxide (CO). The discovery could improve the performance of fuel cells that run on hydrogen fuel but can be poisoned by CO.

Source: feeds.sciencedaily.com

Catalyst mimics the z-scheme of photosynthesis

Added: 22.06.2017 14:30 | 0 views | 0 comments

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A new study demonstrates a process with great potential for developing technologies for reducing CO2 levels.

Source: feeds.sciencedaily.com

Biofilms: The eradication has begun

Added: 22.06.2017 8:25 | 0 views | 0 comments

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Biofilms are slimy, glue-like membranes that are produced by microbes in order to colonize surfaces. They protect microbes from the body's immune system and increase their resistance to antibiotics. Biofilms represent one of the biggest threats to patients in hospital settings. But there is good news: scientists have developed a novel enzyme technology that prevents the formation of biofilms and can also break them down.

Source: feeds.sciencedaily.com

Chemists create 3-D printed graphene foam

Added: 21.06.2017 15:15 | 0 views | 0 comments

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Nanotechnologists have used 3-D laser printing to fabricate centimeter-sized objects of atomically thin graphene. The research could yield industrially useful quantities of bulk graphene.

Tags: Prince
Source: feeds.sciencedaily.com

Chemical solution to shrink digital data storage

Added: 21.06.2017 11:40 | 0 views | 0 comments

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Chemists have found that commonly used polymer films containing two dyes can optically store data in a quaternary (four-symbol) code, potentially requiring about half as much space as binary code storage.

Tags: Chemicals, SPA
Source: feeds.sciencedaily.com

New sensors could enable more affordable detection of pollution, diseases

Added: 21.06.2017 10:32 | 0 views | 0 comments

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When it comes to testing for cancer, environmental pollution and food contaminants, traditional sensors can help. The challenges are that they often are bulky, expensive, non-intuitive and complicated. Now, one team reports that portable pressure-based detectors coupled with smartphone software could provide a simpler, more affordable alternative while still maintaining sensitivity.

Source: feeds.sciencedaily.com

New catalyst paves way for carbon neutral fuel

Added: 21.06.2017 10:31 | 0 views | 0 comments

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Scientists have paved the way for carbon neutral fuel with the development of a new efficient catalyst that converts carbon dioxide (CO2) from the air into synthetic natural gas in a 'clean' process using solar energy.

Source: feeds.sciencedaily.com

Corn better used as food than biofuel, study finds

Added: 20.06.2017 14:29 | 0 views | 0 comments

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Corn is grown not only for food, it is also an important renewable energy source. Renewable biofuels can come with hidden economic and environmental issues, and the question of whether corn is better utilized as food or as a biofuel has persisted since ethanol came into use. For the first time, researchers have quantified and compared these issues in terms of economics of the entire production system to determine if the benefits of biofuel corn outweigh the costs.

Tags: Economy, Cher, Fuel
Source: feeds.sciencedaily.com

Illuminating a better way to calculate excitation energy

Added: 20.06.2017 11:42 | 0 views | 0 comments

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Researchers have demonstrated a new method to calculate excitation energies. They used a new approach based on density functional methods, which use an atom-by-atom approach to calculate electronic interactions. By analyzing a benchmark set of small molecules and oligomers, their functional produced more accurate estimates of excitation energy compared to other commonly used density functionals, while requiring less computing power.

Tags: Cher
Source: feeds.sciencedaily.com

Electron caught in the act

Added: 20.06.2017 9:32 | 0 views | 0 comments

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Australia's fastest camera has revealed the time it takes for molecules to break apart. The experimental research aims to help in the design of new molecules for materials science or drug discovery.

Tags: Australia
Source: feeds.sciencedaily.com

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes

Added: 20.06.2017 9:31 | 0 views | 0 comments


Compositing Cu2O nanoparticles with H2Ti3O7 nanotubes provides an effective strategy to reduce the bandgap energy and the recombination of photo-generated electrons and holes. There is an obvious synergistic effect between guest nanoparticles and host nanotubes due to the interaction to form heterojunction struction, which will enhance photocatalytic oxidation performance for removal of EM due to the stronger visible spectral response and wider absorbance in the long visble light region.

Tags: Tom Ford
Source: feeds.sciencedaily.com

Sustainable ethanol from carbon dioxide? A possible path

Added: 19.06.2017 16:54 | 0 views | 0 comments

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A recent discovery could lead to a new, more sustainable way to make ethanol without corn or other crops. This promising technology has three basic components: water, carbon dioxide and electricity delivered through a copper catalyst.

Source: feeds.sciencedaily.com

Transforming last night's leftovers into green energy

Added: 19.06.2017 15:16 | 0 views | 0 comments

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In a classic tale of turning trash into treasure, two different processes soon may be the favored dynamic duo to turn food waste into green energy, according to a study.

Source: feeds.sciencedaily.com

Chemistry of sea spray particles linked for first time to formation process

Added: 19.06.2017 15:15 | 0 views | 0 comments

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For the first time, researchers have identified what drives the observed differences in the chemical make-up of sea spray particles ejected from the ocean by breaking waves.

Source: feeds.sciencedaily.com

Inexpensive organic material gives safe batteries a longer life

Added: 19.06.2017 13:40 | 0 views | 0 comments

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Modern batteries power everything from cars to cell phones, but they are far from perfect -- they catch fire, they perform poorly in cold weather and they have relatively short lifecycles, among other issues. Now researchers have described a new class of material that addresses many of those concerns in a new article.

Tags: Fire, Cher
Source: feeds.sciencedaily.com

Figuring out the 3-D shape of molecules with a push of a button

Added: 19.06.2017 12:58 | 0 views | 0 comments

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A team of researchers has developed a program that automates the process of figuring out a molecule's three-dimensional structure. The technique compresses a process that usually takes days into minutes and could shorten the pipeline of drug discovery by reducing human error.

Tags: Cher
Source: feeds.sciencedaily.com

To connect biology with electronics, be rigid, yet flexible

Added: 19.06.2017 12:09 | 0 views | 0 comments

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Scientists have measured a thin film made of a single type of conjugated polymer — a conducting plastic — as it interacted with ions and electrons. They show how there are rigid and non-rigid regions of the film, and that these regions could accommodate electrons or ions — but not both equally.

Source: feeds.sciencedaily.com

Biofuel for conventional diesel engines created

Added: 19.06.2017 9:21 | 0 views | 0 comments

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In accordance with an EU directive, conventional automotive diesel is supplemented with seven percent biodiesel. This proportion is set to rise to ten percent by 2020. However, this presents a significant technical challenge: biodiesel vaporises at higher temperatures, which can lead to problems with electronic fuel injection systems and particulate filters. Researchers have developed a method for producing a petroleum diesel-like fuel from conventional biodiesel at low temperatures.

Source: feeds.sciencedaily.com

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