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Jan 12, 2017

Semiconductor nanopyramids for building high-yield quantum photonic devices

Posted by in categories: computing, particle physics, quantum physics

Novel structures exhibit highly directional emission and provide a template for site-controlled quantum dots and self-aligned nanophotonic cavities.

Semiconductor quantum dots (QDs) are thought to be a promising candidate for a single-quantum emitter in on-chip systems because of their well-developed growth and fabrication techniques. Semiconductor QDs, however, have a number of inherent limitations that need to be overcome before they can be used in practical applications. For example, QDs in semiconductors are strongly affected by elements (e.g., phonons) in the surrounding environment, which results in short nonradiative decay times and rapid dephasing processes. Despite the high intrinsic radiative decay rates of semiconductor QDs compared with those of other single-quantum emitters (such as atoms and ions), the radiative decay rate needs to be further increased so that these fast nonradiative and dephasing processes can be overcome. Furthermore, the collection efficiency of the light that is emitted from conventional QDs embedded in a high-index planar substrate is typically low (about 4%).

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Jan 12, 2017

How Photosynthetic Pigments Harvest Light

Posted by in categories: solar power, sustainability

Harvesting light.

Plants and other photosynthetic organisms use a wide variety of pigments to absorb different wavelengths of light. MIT researchers have now developed a theoretical model to predict the spectrum of light absorbed by aggregates of these pigments, based on their structure.

The new model could help guide scientists in designing new types of solar cells made of organic materials that efficiently capture light and funnel the light-induced excitation, according to the researchers.

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Jan 12, 2017

Was Einstein Right, Is Time Travel Possible? Scientists Tested it

Posted by in categories: particle physics, quantum physics, time travel

The University of Queensland Australia has done subsequent studies on time travel, its possibility aspects, and components. According to in-depth studies from the University, time travel is a possibility. The scientists used single particles of light photons to simulate quantum particles that travel through time. The study indicated that modern physics has strange aspects that were explained by Professor Timothy Ralph. Quantum particles are made up of fuzzy or uncertain components that make it possible for them to wiggle around and thus avoid inconsistent time travel situations. Therefore, nature behaves differently making the impossible possible.

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Jan 12, 2017

Soon, You Could Have Your Genome Sequenced in 60 Minutes for $100

Posted by in category: biotech/medical

In Brief

  • Illumina claims its new NovaSeq sequencing machine will one day be able to sequence an entire genome for less than $100, a process that currently costs about $1,000.
  • Cheaper genome sequencing could revolutionize healthcare, allowing doctors to prescribe individualized treatment options for patients.

There are an estimated 25,000 genes in the human genome, comprised of approximately 3 billion nucleotide base pairs. It took the Human Genome Project (HGP) approximately 15 years and $2.7 billion to sequence the entire human genome (minus about 1 percent) using the DNA of several volunteers.

Now, San Diego-based sequencing company Illumina has debuted a new sequencing machine, the NovaSeq (NovaSeq 5000 and NovaSeq 6000), that it says will one day be able to sequence an entire genome for less than $100 in fewer than 60 minutes. This is a steep difference in both cost and time compared to that first sequenced genome, but it follows the trend. In 2006, Illumina released their first machine, which could sequence a genome for $300,000, but by last year, that price had dropped to $1,000.

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Jan 12, 2017

Is An Anti-Aging Serum In Your Future? Science-Backed Therapy Targeting Senescent Cells May Be The Answer

Posted by in categories: biotech/medical, life extension, science

Senolytics to remove senescent cells will deliver the first “repair” based approach to treat the aging process. This is the arrival of true rejuvenation biotechnology in the SENS model of damage repair.

Senescent cell removal with companies such as Unity, entering human clinical trials in the next 18 months will deliver the first true damage repair rejuevenation biotechnology. This will be the first “repair” approach to the aging process and one the SENS Research Foundation has been advocating for over a decade.

#aging #crowdfundthecure

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Jan 12, 2017

MEPs vote on robots’ legal status

Posted by in categories: law, robotics/AI

An EU report lays out a set of rules for how humans interact with robots and artificial intelligence.

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Jan 12, 2017

Scientists discover master regulator of cellular aging

Posted by in categories: biotech/medical, life extension

This is probably important.

Scientists at The Scripps Research Institute (TSRI) have discovered a protein that fine-tunes the cellular clock involved in aging.

This novel , named TZAP, binds the ends of chromosomes and determines how long , the segments of DNA that protect chromosome ends, can be. Understanding telomere length is crucial because telomeres set the lifespan of cells in the body, dictating critical processes such as aging and the incidence of cancer.

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Jan 12, 2017

The Department of Transportation wants to make cars talk

Posted by in category: transportation

Cars might have to broadcast their whereabouts to other vehicles.

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Jan 12, 2017

Craig Venter — How Genome Sequencing Can Fight Aging

Posted by in categories: biotech/medical, life extension

A genome sequenced every 15 minutes.

Filmed November 2016.

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Jan 12, 2017

Donor Age Shows Up In Induced Stem Cells

Posted by in categories: biotech/medical, genetics

Epigenetic changes are not all reset with iPS thankfully science has recently demonstrated a technique for reversing that too. The future is looking bright for stem cell quality improvements.

Reprogramming stem cells back to a functionally younger state is not a pefect process and epigenetic changes and mutations remain in place tainting the cells and reducing their quality.

Scientists working in the stem cell field will no doubt be finding ways to work around this and indeed recent work at SALK could reset epigenetic changes in these cells so solutions are within reach in the next few years.

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