May 31, 2019

  • Dr. Betzig standing at the podium

    Betzig Boosts Biology with Better Visuals

    Nobel laureate Dr. Eric Betzig has turned serial frustration with the tools of microscopy into a career of improvements that have lead to super-resolution instruments. He is convinced that biologists can't understand what they are studying unless they can see live images.
  • Dr. Wilson speaks at podium

    Sex Chromosomes Can Trade DNA in Two Regions

    The X and Y chromosomes, also known as sex chromosomes, differ greatly from each other. But in two regions, they are practically identical. “We’re interested in studying how the process of evolution shaped the X and the Y chromosome in gene content and expression and how that subsequently affects literally everything else that comes with being a human,” Dr. Melissa Wilson said.
  • Kids pet a red and black snake that's wrapped around its owner's arm.

    TYCTWD Celebrates 25 Years

    Kids of all ages had a blast learning about the amazing science that happens across NIH at the 25th Take Your Child to Work Day. Nearly 4,000 students from grades 1-12 were registered for some 200 activities on and off campus.
  • NHLBI director Dr. Gibbons poses with NHLBI staff in Lister Hill auditorium.

    NHLBI Division Celebrates 50th Anniversary

    In April, NHLBI kicked off its golden anniversary with a scientific symposium highlighting the progress and future of a centerpiece of this work—lung imaging.
2-6-micrometer-thick microparticles attached to the 1-micrometer-thick microfibers.

On the Cover

Researchers at the Midwest Cancer Nanotechnology Training Center are developing a blood clot-mimicking patch capable of delivering drugs at an implantation site in a controllable manner. The patch, consisting of drug-releasing microparticles bound to directionally aligned microfibers, was formed through a unique electrospinning/electrospraying process. The image shows the 2-6-micrometer-thick microparticles attached to the 1-micrometer-thick microfibers.

Photo: Ross Devolde & Hyunjoon Kong, NCI