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Converting sunlight into electricity is the task of photovoltaic solar cells, but nearly half the light that reaches a flat silicon solar cell surface is lost to reflection. While traditional antireflective coatings help, they only work within a narrow range of light frequency and incidence angles. A new study may have overcome this limit.
As reported in Advanced Photonics Nexus, researchers have proposed a new type of antireflective coating using a single, ultrathin layer of polycrystalline silicon nanostructures (a.k.a. a metasurface). Achieving minimal reflection across certain wavelengths and angles, the metasurface was reportedly developed by combining forward and inverse design techniques, enhanced by artificial intelligence (AI).
The result is a coating that sharply reduces sunlight reflection across a wide range of wavelengths and angles, setting a new benchmark for performance with minimal material complexity.
The crucial drugs can have unintended consequences. Innovative therapies could shield the microbiome from their effects.
A team led by Rice University bioscientist Caroline Ajo-Franklin has discovered how certain bacteria breathe by generating electricity, using a natural process that pushes electrons into their surroundings instead of breathing on oxygen.
The findings, published in Cell, could enable new developments in clean energy and industrial biotechnology.
By identifying how these bacteria expel electrons externally, the researchers offer a glimpse into a previously hidden strategy of bacterial life. This work, which merges biology with electrochemistry, lays the groundwork for future technologies that harness the unique capabilities of these microscopic organisms.
A breakthrough in Hilbert’s sixth problem is a major step in grounding physics in math
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Many diseases are caused by a missing or defective copy of a single gene. For decades, scientists have been working on gene therapy treatments that could cure such diseases by delivering a new copy of the missing genes to the affected cells.
Despite those efforts, very few gene therapy treatments have been approved by the FDA. One of the challenges to developing these treatments has been achieving control over how much the new gene is expressed in cells — too little and it won’t succeed, too much and it could cause serious side effects.
To help achieve more precise control of gene therapy, MIT engineers have tuned and applied a control circuit that can keep expression levels within a target range. In human cells, they showed that they could use this method to deliver genes that could help treat diseases including fragile X syndrome, a disorder that leads to intellectual disability and other developmental problems.
Preventing Multimer Formation in Commonly Used Synthetic Biology PlasmidsClick to copy article linkArticle link copied!
Posted in bioengineering, biotech/medical | Leave a Comment on Preventing Multimer Formation in Commonly Used Synthetic Biology PlasmidsClick to copy article linkArticle link copied!
A nice brief paper comparing plasmid multimer formation in different strains of bacteria and identifying conditions under which such multimer formation occurs minimally. #biotech #synbio