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Top Story

Researchers embrace imperfection to improve biomolecule transport

While watching the production of porous membranes used for DNA sorting and sequencing, National Science Foundation-funded researchers wondered how tiny steplike defects formed during fabrication could be used to improve molecule transport. They found that the defects -- formed by overlapping layers of membrane -- make a big difference in how molecules move along a membrane surface. Instead of trying to fix these flaws, the team set out to use them to help direct molecules into the membrane pores. Nanopore membranes have generated interest in biomedical research because they help researchers investigate individual molecules -- atom by atom -- by pulling them through pores for physical and chemical characterization. This technology could ultimately lead to devices that can quickly sequence DNA, RNA or proteins for personalized medicine.

Visit Website | Image credit: Manish Shankla