Eye Drops With Quantum Dots Help Fight Bacterial Infection

The new quantum dots are a potential alternative to conventional bacterial keratitis eye drop treatments.

Bacterial keratitis, an eye infection causes the cornea to become inflamed, and if left untreated, can lead to vision loss.

Current treatments include steroid drops, but these medications can lead to scarring of the cornea. Researchers have turned to antibacterial nanomaterials to treat this infection, but some of these substances are toxic to human cells, too.

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‘Quantum dots are tiny particles which may provide relief for eye infections resulting from contact lens wear, trauma or some types of surgeries.’

So, Jui-Yang Lai, Chih-Ching Huang and colleagues wanted to develop a new treatment that would be easy to make, while also being non-toxic.

The researchers developed a one-step method to make carbon quantum dots by heating spermidine, a compound that can boost the effectiveness of antibiotics.

The result was a spermidine-coated quantum dot that could kill various bacterial strains, including those that are resistant to multiple drugs, in laboratory animals.

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The materials disrupted bacterial cells while leaving animal cells alone. The team says that the new quantum dots are a potential alternative to conventional bacterial keratitis eye drop treatments.

Source-Eurekalert

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