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Categories: Biology: Microbiology, Engineering: Biometric

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Biology: Microbiology Engineering: Robotics Research
Published

Bite this! Mosquito feeding chamber uses fake skin, real blood      (via sciencedaily.com) 

Bioengineers and experts in tropical medicine have invented a new way of studying mosquito feeding behavior using technology instead of live volunteers. Their open-source design combines automated cameras, artificial intelligence and blood-infused, 3D-printed 'synthetic skin.'

Biology: Evolutionary Biology: Microbiology
Published

'We're not all that different': Study IDs bacterial weapons that could be harnessed to treat human disease      (via sciencedaily.com) 

When it comes to fighting off invaders, bacteria operate in a remarkably similar way to human cells, possessing the same core machinery required to switch immune pathways on and off, according to new research.

Biology: Microbiology Chemistry: Organic Chemistry
Published

Keeping SARS-CoV-2 closed for business with small molecules      (via sciencedaily.com) 

The infamous spike proteins on the surface of SARS-CoV-2 help it bind to and enter human cells. Because of their important role in spreading infection, these spike proteins are one of the main targets for COVID-19 vaccines and treatments. But those remedies gradually lose effectiveness when certain segments of the spike proteins mutate. Now, researchers report that they have discovered small molecules that successfully target other segments that mutate less.

Biology: Microbiology
Published

Discovery of T-cells that protect against deadly pneumococcal disease      (via sciencedaily.com) 

A new study reveals how resistance to bacteraemic pneumonia is provided by a unique subset of lung T regulatory cells.

Biology: Botany Biology: Microbiology Geoscience: Environmental Issues
Published

Licorice leaf extract is a promising plant protectant for conventional and organic agriculture      (via sciencedaily.com)     Original source 

A study reveals that licorice leaf extract is a potent bactericide and fungicide that can be used in conventional and organic agriculture.

Biology: Microbiology
Published

Studies find that microbiome changes may be a signature for ME/CFS      (via sciencedaily.com) 

Researchers have found differences in the gut microbiomes of people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) compared to healthy controls. Findings from two studies add to growing evidence that connects disruptions in the gut microbiome, the complete collection of bacteria, viruses, and fungi that live in our gastrointestinal system, to ME/CFS.

Biology: Microbiology
Published

How waste-eating bacteria digest complex carbons      (via sciencedaily.com) 

For the first time, researchers mapped the metabolic mechanisms in a Comamonas bacterium that digests chemicals from plastic and plant waste. This new information could potentially lead to novel biotechnology platforms that harness the bacteria to help recycle plastic waste.

Biology: Marine Biology: Microbiology
Published

Why microbes in the deep ocean live without sunlight      (via sciencedaily.com)     Original source 

A new study reverses the idea that the bulk of life in the ocean is fueled by photosynthesis via sunshine, revealing that many ocean microbes in fact get their energy from hydrogen and carbon monoxide. It has always been a mystery as to how microbes growing in deepest parts of the sea survive, with no sunlight. A new study shows that a distinct process called chemosynthesis -- growth using inorganic compounds -- fuels microbes in these darkest depths.

Biology: Microbiology
Published

Harnessing an innate protection against Ebola      (via sciencedaily.com) 

Researchers have identified a cellular pathway that keeps Ebola virus from exiting human cells, with implications for developing new antivirals.

Biology: Microbiology
Published

Attacking COVID-19's moving antibody target      (via sciencedaily.com) 

A new study demonstrates that a portable electrochemical sensing technology known as eRapid could be an ideal instrument to enable the inexpensive, multiplexed detection of different SARS-CoV-2-directed antibodies at the point-of-care. Researchers showed that specifically engineered eRapid sensors can detect antibodies targeting the virus' so-called nucleocapsid (N) protein from ultra-small samples of blood plasma and dried blood spots with 100% sensitivity and specificity within less than 10 minutes.

Biology: Developmental Biology: Microbiology Offbeat: Plants and Animals
Published

Human brain organoids respond to visual stimuli when transplanted into adult rats      (via sciencedaily.com) 

Researchers show that brain organoids -- clumps of lab-grown neurons -- can integrate with rat brains and respond to visual stimulation like flashing lights.

Biology: Microbiology
Published

Reducing their natural signals: How sneaky germs hide from ants      (via sciencedaily.com) 

Not only humans are social, ants are too. Group members are taking care of sick ones by providing collective hygiene measures. This presents germs with a task. They must circumvent the immunity of an individual ant and avoid the group's healthcare. A new study reveals that germs develop a sneaky way to escape the ant colony's defense systems by reducing their detection cues.

Biology: Microbiology
Published

Molecular machines could treat fungal infections      (via sciencedaily.com) 

Scientists show that light-activated nanoscale drills can kill pathogenic fungi.

Biology: Microbiology
Published

The quail could be the unknown reservoir of Tuscany and Sicilian viruses      (via sciencedaily.com) 

The quail could be the unknown reservoir of the Toscana virus (TOSV) and the Sandfly Fever Sicilian virus (SFSV), mosquito-borne pathogens that can infect domestic animals and also cause disease in humans.

Biology: Microbiology
Published

Discovery of a circovirus involved in human hepatitis      (via sciencedaily.com) 

Scientists have identified a previously unknown species of circovirus, provisionally named human circovirus 1 (HCirV-1). Circoviruses are a family of small, highly resistant DNA viruses that were initially identified in 1974 in various animal species, where they can cause respiratory, renal, dermatological and reproductive problems. HCirV-1 is a novel virus that is distant from known animal circoviruses. It was shown to be implicated in damage to the liver of a patient undergoing immunosuppressive treatment.

Biology: Microbiology
Published

Genomic methods aid study of Seattle 2017-2022 Shigella outbreak      (via sciencedaily.com) 

A genomic study of a sustained, multidrug-resistant Shigellosis outbreak in Seattle from 2017 to 2022 enabled scientists to retrace its origin and spread. Additional analysis of the gut pathogen and its transmission patterns helped direct approaches to testing, treatment, and public health responses. The aim of the study was to better understand the community transmission and spread of antimicrobial resistance and to treat these multi-drug resistant infections more effectively.

Biology: Microbiology
Published

Silver nanoparticles show promise in fighting antibiotic-resistant bacteria      (via sciencedaily.com) 

A new study found that small amounts of silver nanoparticles combined with a low dose of a common antibiotic inhibited the growth of resistant bacteria.

Biology: Microbiology
Published

Deer carry SARS-CoV-2 variants that are extinct in humans      (via sciencedaily.com) 

Researchers have found white-tailed deer ­-- the most abundant large mammal in North America -- are harboring SARS-CoV-2 variants that were once widely circulated, but no longer found in humans.

Biology: Microbiology
Published

Diversity of viroids and viroid-like agents      (via sciencedaily.com) 

A team of researchers has developed a computational pipeline to identify and better understand viroids and viroid-like covalently closed circular RNAs (cccRNAs, also referred to as, simply, circular RNAs).

Biology: Microbiology
Published

Warmer climate may drive fungi to be more dangerous to our health      (via sciencedaily.com) 

A new study finds that raised temperatures cause a pathogenic fungus known as Cryptococcus deneoformans to turn its adaptive responses into overdrive. Heat increases its number of genetic changes, some of which might presumably lead to higher heat resistance, and others perhaps toward greater disease-causing potential.