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A study recently published in Chemical analysis proposed a strategy for optical detection of several bacterial species based on the optical properties of the nanohybrid structure of polymer-coated metal nanoparticles. Study: Simultaneous Optical Detection of Several Bacterial Species Using Nanometer-Scale Metal-Organic Hybrids . Image Credit: Yurchanka Siarhei/Shutterstock.com Rapid detection of bacteria is critical because of the rise of antibiotic-resistant microbes, the global food trade, and their applications in pharmaceuticals, bioremediation, and food production. The optical detection technique has piqued the curiosity of researchers because of its potential for rapid, high-throughput, non-destructive, and amplification-free identification. Development of Bacterial Detection Techniques Several species of bacteria are useful for improving safety and quality of life in medicine, food production and energy; however, some bacteria are harmful. Bacterial identification tests c

A study recently published in Chemical analysis proposed a strategy for optical detection of several bacterial species based on the optical properties of the nanohybrid structure of polymer-coated metal nanoparticles. Study: Simultaneous Optical Detection of Several Bacterial Species Using Nanometer-Scale Metal-Organic Hybrids . Image Credit: Yurchanka Siarhei/Shutterstock.com Rapid detection of bacteria is critical because of the rise of antibiotic-resistant microbes, the global food trade, and their applications in pharmaceuticals, bioremediation, and food production. The optical detection technique has piqued the curiosity of researchers because of its potential for rapid, high-throughput, non-destructive, and amplification-free identification. Development of Bacterial Detection Techniques Several species of bacteria are useful for improving safety and quality of life in medicine, food production and energy; however, some bacteria are harmful. Bacterial identification tests c

Hawaii’s volcanic environment contains a mysterious variety of microbes, new research has discovered this week. Scientists say that the island’s lava caves and other structures created by volcanic activity have unique, diverse, and still-living bacterial communities within them. The findings suggest that much remains to be learned about life in some of the most extreme conditions on Earth. Researchers at several universities and NASA collaborated for the study, which was published Thursday in Frontiers in Microbiology. They studied samples collected from 70 sites along the Big Island of Hawaii, the largest island in the Hawaiian archipelago. These sites include caves, tubes, and fumaroles, which are openings or vents through which volcanic gases and water can escape. They analyzed and sequenced the RNA found in the samples, making it possible to create a rough map of the bacterial community living there. Stalactite formations in the Hawaiian cave system from this study with co

An artist’s depiction of a bacterial cell. Credit: Centers for Disease Control and Prevention/James Archer Since its inception, chemotherapy has proven to be a valuable tool in treating many types of cancer, but it has significant drawbacks. Apart from killing cancer cells, it can also destroy healthy cells such as those in hair follicles, causing baldness, and those that line the stomach, resulting in nausea. Now, scientists at the California Institute of Technology (Caltech) may have a better solution: voice-controlled, genetically engineered bacteria that seek out and destroy cancer cells. In a new paper published in the journal “The goal of this technology is to take advantage of the ability of engineered probiotics to infiltrate tumors, while using ultrasound to activate them to release potent drugs inside the tumor,” professor Shapiro says. A strain of E. coli called Nissle 1917, which is approved for medical uses in humans, was the starting point for their work. After being

AUSTIN, Texas – For more affordable and sustainable drug options than we have today, the drugs we use to treat high blood pressure, pain or memory loss may someday come from engineered bacteria, cultured in vats like yogurt. And thanks to a new bacterial tool developed by scientists at The University of Texas at Austin, the process of increasing drug-making in bacterial cells may be happening more quickly than we think. For decades, researchers have been looking for ways to make drug manufacturing more affordable and sustainable than current pharmaceutical manufacturing processes, many of which rely on plants or petroleum. Using bacteria has been suggested as a good organic alternative, but detecting and optimizing the production of therapeutic molecules is difficult and time-consuming, taking months. In a new paper this week in Nature Chemical Biology, the UT Austin team introduces a biosensor system, derived from the bacterium E. coli, that can be adapted to detect all types of th