Gold-Based Sensor Finds Bugs, Fast - Takeaways - MDSpire
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Gold-Based Sensor Finds Bugs, Fast

New filtration technique detects low concentrations of bacteria and assesses antibiotic susceptibility, offering a potential faster route to diagnosing sepsis and other serious infections

  • October 30, 2026

  • 2 min

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  • 1

    Researchers developed a filtration-based SERS platform that captures bacteria on a gold-coated glass microfiber filter and amplifies their molecular signals with additional gold particles.

  • 2

    In tests using Escherichia coli, the platform captured more than 99.9% of bacteria at the concentrations tested and detected levels as low as 1,000 CFU/mL.

  • 3

    A 1-hour culture step improved the platform’s detection sensitivity to 10 CFU/mL.

  • 4

    The platform distinguished Escherichia coli, Staphylococcus aureus, and Klebsiella pneumoniae by their molecular fingerprints.

  • 5

    In Escherichia coli tests, antibiotic responses to amikacin and ampicillin were distinguishable within 2 hours, but validation with patient blood samples and more pathogens remains necessary.

Original Source(s)

Gold-Based Sensor Finds Bugs, Fast

  • October 30, 2026

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