Biology and biotechnology – Page 21
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ResearchDNA helix has chiral water ‘spine’
Spectroscopy reveals how water molecules form a chiral superstructure in DNA’s minor groove
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ResearchCoral skeletons hold history of volcanic eruptions
Noble gas isotope ratios offer means to track when past underwater eruptions occurred
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ResearchModified antibiotic beats superbug resistance
Adding functional groups to vancomycin gives it extra modes of attack against resistant bacteria
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ResearchSweat pore mimic unblocks perspiration theory
Microfluidic device shows that antiperspirants control sweating by forming pore-plugging aggregates with perspiration proteins
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ResearchMicromotors navigate tiny biochemical lab
Resistant layer protects micromotors from protein-induced breakdown when swimming through biological fluids on lab-on-a-chip device
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ResearchSeductive sulfurs woo wasps
Amorous insect pollinators caught in the act with (methylthio)phenols
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ResearchDeft defecators done in 12 seconds
Fluid dynamics explain how amount and viscosity of faecal mucus makes it easy to poo
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ResearchDeuteration of classic origin of life experiment throws up surprises
Replay of iconic Miller–Urey work with heavier hydrogen isotope produces unexpected compounds
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ResearchNanopipette probes cells without killing them
Scientists extract contents of individual living cells using a lipid-bilayer-coated nanopipette
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ResearchBare necessities of grizzlies' diet revealed
Chemical content of bears’ hair reveals surprising eating habits
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ResearchHow total synthesis is creating antibiotics
Macrolide synthesis could reinvigorate the antibiotic pipeline
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ResearchTiny bubbles made easier
Shrinking the microbubbles needed for ultrasound with microfluidics
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ResearchCrispr enables rapid disease detection
A Crispr enzyme that targets RNA can recognise Zika at minute concentrations
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ResearchPhone screen light kills human eye cells
Low intensity blue light from smartphones and televisions kills human retinal cells
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ResearchHydrothermal vents generate deep-sea currents
Minerals spewed by ocean vents set up redox reactions that allow electrical currents to flow
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ResearchTiny virus batteries remove water pollutant
Metal nanoparticles turn viruses into tiny batteries that reduce toxic compound in just 10 minutes
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ResearchMaple syrup enhances antibiotics
A phenol-rich mixture extracted from maple syrup allows much smaller doses of antibacterial drugs to achieve the same results
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ResearchSupposed human pheromones fail to pass sniff test
Scientists are still searching for the first human chemical attractant
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ResearchUnique proteins give water bears extreme drought tolerance
Glassy proteins allow tardigrades to survive being dried out for more than a decade