Biophysics

  • The many different molecules trying to fill the binding site of octamethyl calix[4]pyrrole (omC4P)
    Understanding how molecules interact with ions is a cornerstone of chemistry, with applications from pollution detection and cleanup to drug delivery. In a series of new studies led by JILA Fellow and University of Colorado Boulder chemistry professor Mathias Weber, researchers explored how a specific ion receptor called octamethyl calix[4]pyrrole (omC4P) binds to different anions, such as fluoride or nitrate. These findings provide fundamental insights about molecular binding that could help advance fields such as environmental science and synthetic chemistry.
  • Diagram of the experimental setup (not to scale): Photoactivation of a single molecule of bR.
    When it comes to drug development, membrane proteins play a crucial role, with about 50% of drugs targeting these molecules. Understanding the function of these membrane proteins, which connect to the membranes of cells, is important for designing the next line of powerful drugs. To do this, scientists study model proteins, such as bacteriorhodopsin (bR), which, when triggered by light, pump protons across the membrane of cells.
  • JILA postdoctoral researcher Vit Svoboda
    Every year, the Czech Science Foundation (GCAR) funds several JUNIOR STAR projects focused on new research areas and building powerful collaborative teams. These projects are awarded to early-career scientists coming to the Czech Republic from other countries or with significant international experience. Each project is awarded CZK 25 million over the following five years.
    This year, JILA postdoctoral researcher V铆t Svoboda is one of the 17 awardees in the 2023 JUNIOR STAR cohort.
  • The near-universal ability of EDTA to accommodate metal cations comes from its molecular flexibility, which allows it to respond to the chemical nature of the metal ion it binds.
    To understand how EDTA binds to metal ions and water molecules, Madison Foreman, a former JILA graduate student in the Weber group, now a postdoctoral researcher at the University of California, Berkeley, Terry, and their supervisor, JILA Fellow J. Mathias Weber, studied the geometry of the EDTA binding site using a unique method that helped to isolate the molecules and their bound ions, allowing for more in-depth analyses of the binding interactions. They published a series of three papers on this topic. In their first paper, published in the Journal of Physical Chemistry A, they found that the size of the metal ion changes where it sits in the EDTA binding site, which affects other binding interactions, especially with water.
  • An artistic rendering of the bacterium's riboswitch and its interactions with three different potential ligands.
    To better understand the dynamics of aptamer and ligand binding, Marton Menendez, along with JILA and NIST Fellow David Nesbitt, looked at the lysine (an amino acid) riboswitch in Bacillus subtilis, a common type of bacterium present in environments ranging from cow stomachs to deep sea hydrothermal vents. With this model organism, the researchers studied how different secondary ligands, like, potassium, cesium, and sodium, affect riboswitch activation, or its physical folding.
  • Liz Shanblatt, a JILA alumn and a Staff Scientist and Collaboration Manager at Siemens Healthineers
    While many JILA alumni go onto have more traditional careers such as in quantum industry, other career paths that might not be as well-known offer some unique benefits. One of these career paths is in medical physics research. Medical physics is an important and rapidly growing field that is dedicated to the application of physics principles and techniques to medicine and healthcare. Medical physicists are experts in the use of radiation and other technologies to diagnose and treat disease, and they play a vital role in ensuring the safety and effectiveness of medical procedures. They also research and develop the next generation of tools for diagnostic imaging and radiation therapy. For JILA alumni Liz Shanblatt, a Staff Scientist and Collaboration Manager at Siemens Healthineers, medical physics became an interest only as she was nearing graduation and starting to look for jobs.
  • Poster for the "She has the Floor" event
    When it comes to inspiring young people to pursue a career within the sciences, you can't start too early. At least, that's what the JILA Excellence in Diversity and Inclusivity (JEDI) group believed when they collaborated with the Colorado non-profit organization Pretty Brainy to develop a speaker series. The series, designed for girls from ages 11 and up, featured the voices of several women JILAns, all focusing on their work and giving tools for success to this younger generation. Over the course of 8 weeks, women of all ages could virtually tune in to hear some of the brightest female minds from JILA discuss the importance of mentorship, perseverance, failure, and of course, some of the newest findings within physics.
  • JILA's custom logo commemorating its 60th anniversary
    This year, JILA celebrates its 60th anniversary. Officially established on April 13, 1962, as a joint institution between the University of Colorado Boulder and the National Institute of Standards and Technology (NIST), JILA has become a world leader in physics research. Its rich history includes three Nobel laureates, groundbreaking work in laser development, atomic clocks, underlying dedication to precision measurement, and even competitive sports leagues. The process of creating this science goliath was not always straightforward and took the dedication and hard work of many individuals.
  • Model of frequency comb filtering breath molecules
    Breath analysis has been fast progressing in recent years and is continuing to gain more and more research interest. It is, however, experimentally challenging due to the extremely low concentrations of molecules present in each breath, limited number of detectable molecular species, and the long data-analysis time required. Now, a JILA-based collaboration between the labs of NIST Fellows Jun Ye and David Nesbitt has resulted in a more robust and precise breath-testing apparatus. In combining a special type of laser with a mirrored cavity, the team of researchers was able to precisely measure four molecules in human breath at unprecedented sensitivity levels, with the promise of measuring many more types of molecules.
  • Photo of JILA Fellows Graeme Smith and Thomas Perkins
    JILA Fellow Thomas Perkins has been awarded the 2021 Outstanding Postdoc Mentor Award. This award recognizes mentors who have gone above and beyond to support their postdocs. Perkins was nominated by postdoc David Jacobson, who praised Perkins' effort to help Jacobson听apply and receive the prestigious听NIH K99 鈥淧athway to Independence鈥 Award.

    JILA Fellow Graeme Smith also won the 2021 Outstanding Postdoc Mentor Award, being nominated by听蜜桃传媒破解版下载 postdoc Vikesh Siddhu and former 蜜桃传媒破解版下载 postdoc, Felix Leditzky.听Leditzky said Smith 鈥減layed an integral part in guiding me through the process and helping me achieve this career goal. I aim to pay forward the trust and support that I received from him.鈥
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