What made this BPS annual meeting unique?

I hope you have all enjoyed your week in San Francisco. BPS is the last of five conferences that I signed myself into over the last three months, because I’m looking for places in Australia and thus reconnecting with the locals across three conferences. The other four meetings were all regional, with a very different atmosphere. It’s thus worth highlighting some of the unique things about meetings of this scale, especially if it was your first:

  1. At BPS, it’s better to email a few people ahead of time and set up a time/place to talk. A lot of top notch research across fields are presented here. So everyone’s running around across more than a hectare’s with of space, and catching up with other people and other research. In this environment, I’ve done a majority of my intentional meetups by e-mailing someone either before or during. In contrast with many conferences of ~10^2 people, you can consistently spot your colleagues and ask on the spot.
  2. You probably should consider bringing your poster on an extra day in the excess slots. The two hours slot for posters is a very competitive environment, given the 800 other posters as well as workshops+exhibitors. If someone is interested in your work but wasn’t there, it’s a decent idea to offer another time when you can invite them to see it.
  3. BPS has a very large concentration of editors and industry reps. For those who are even remotely contemplating non-academic futures, there’s a lot of people who were in your shoes now standing at the booth. Valuable advice is hiding in plain sight, hailing from across the entire industry.
  4. Writing a follow-up message is more critical at BPS relative to other conferences. One email to say thanks will help both you and your distant colleague remember each other. Especially for me as a really visual person, I don’t really have the ability to remember the name of whom I’ve met for twenty minutes after a year, although I can spot their face. Plus, you’ll be meeting plenty of internationals whom you won’t see normally, but may call on.

The above advice might come a little late, but never worry: there’s next year in Baltimore, and many other international-scale conferences to practice your skills. See you around.


New Conference, new poster

I’ve lost count of how many times I almost forgot the humble poster tube. Whether it’s a mad dash between train platforms or an addled disembarkment after a red-eye flight, this brain takes its sweet time remembering that something is missing amongst my cellphone, backpack, overnight bag, and during graduate days, a travel guitar plus a brimmed hat. It’s tremendously fortunate that I’ve only needed to purchase one replacement tube so far,* with just my stuff inside. Continue Reading

How to Prepare for a Non-Bench Career


Professor Molly Cule is delighted to receive comments on her answers and (anonymized) questions at mollycule@biophysics.org, or visit her on the BPS Blog.

There is an increasing interest for science PhD students to pursue an “alternate” career beyond the traditional bench research followed by a tenure-track faculty position. The options include marketing, sales, intellectual property, policy, and writing, among others. This article highlights four important steps you can take to prepare for any of these non-bench careers.

  • Do your research: Do not go into another non-bench career just for the sake of it. The career sections of most societies, as well as top journals like Science and Nature have a treasure trove of information on various alternative careers. Reach out to alumni from your school or your lab, as well as to friends and family members, or use social media (Twitter/LinkedIN) to directly speak with people who have made the transition.
  • Along the same lines, make a list of your transferrable skills. These skills could have been built up either as part of your graduate research (e.g., data mining and analysis), or at home or through community work (e.g., did you demonstrate leadership skills through some sort of volunteer work?).  Then note how they align with the careers you are considering.
  • Work on your communication skills: Most non-bench careers involve effective communication, whether it is written or verbal. Two particular skills that will be useful to master include (a) the ”elevator pitch” — a quick summary of who you are and/or what you do and why it’s valuable, and (b) communicating technical information to a lay audience.
  • Gain experience outside of your work: It can be difficult to break into a new industry without prior experience. However, it is possible to gain experience in other ways. If you are interested in science writing, think of maintaining an active blog, or contribute to your school or society newsletters; see if you can volunteer at your institute’s technology commercialization office if you are interested in patent law. Employers also tend to look favorably upon those who have demonstrated a willingness to broaden their horizons beyond bench research.
  • Network: It’s gotten to be a cliché now, but the value of the mantra ”Network, network, network” cannot be overstated. Apart from helping you land that next job, networking will help all of the above — researching alternate careers, communicating, and broadening your horizons!

Controlled electroporation of the blood-brain barrier

BPJ_110_2_3C_v2Brain endothelial cells are the major constituent of the blood-brain barrier (BBB) and permeability is the key to successful drug delivery across the BBB. The BBB regulates the transport of different substances from blood to the brain by moving through the cell (transcellular transport) or between the cells (paracellular transport). However, it is considered an obstacle to efficient delivery of drugs that target the central nervous system.

Pulsed electric fields are one of several methods that have the potential to temporarily make the BBB permeable when substances are traveling through the transcellular or paracellular pathways.  The electroporation phenomenon is mainly responsible for opening the cell membrane and enhancing the transcellular pathway across the BBB. Therefore, in order to get a more accurate picture of this transport phenomenon, it is necessary to investigate the effect of electropermeabilization on the endothelial cell monolayer of the BBB.

For transcellular transport to occur, molecules are first absorbed through the apical side of the cell membrane into the cytoplasm, and then they pass through to the basolateral side. Therefore, monitoring cellular absorbtion provides insight into possible enhancement of transcellular transport for different substances and can help us determine whether or not a certain treatment is effective in transporting drugs across the BBB.

The cover image shows the permeabilization of the brain endothelial cell monolayer at different sections of the tapered microfluidic channel, which is implemented in this study as a platform for delivering the pulsed electric fields. The electric pulses were applied at the channel ends, making a gradient of electric field across the channel which is inversely proportional to the channel width. Therefore the electropermeabilization could be monitored for a range of electric field magnitudes in a single experiment. The cells were initially stained in green using calcein AM and then pulsed in the presence of propidium iodide (PI), which is naturally impermeable to the cells. Upon entering the cell, PI stains the cell nuclei red, making it a valid probe for monitoring absorption. The images are taken using an inverted fluorescent microscope with two filters which enable the visualization of red and green stains.

The results from varying pulse strengths and the number of applied pulses may provide information that can be used to find the proper parameters to enhance transcellular transport across the BBB using pulsed electric fields without causing any permanent damage.

– Mohammad Bonakdar, Elisa Wasson, Yong Woo Lee and Rafael Davalos


Biomolecular Dynamics, an Historical Account

Cover 110-1We are changing every second of every day. We travel around and between our offices and homes, and move our bodies to perform tasks. The proteins and other biomolecules that comprise us are no different. For us, our relevant timescales range from milliseconds to many years and we are conscious of experiences on these timescales. Biomolecules move around and perform their functions on timescales that are generally much faster, occurring between femtoseconds and seconds. To study motions of biomolecules on these timescales is a considerable challenge, but advances over the last 40 years have bought us to the point that we now can start to decipher the atomic goings on of biomolecules on their relevant timescales. In this issue we present an historical perspective on one of the early papers in our field by Lipari and Szabo, which was published in the Biophysical Journal in 1980. This work laid the foundation for the study of internal motions of biomolecules using the model-free approach that is now frequently used to analyze relaxation data measured by nuclear magnetic resonance spectroscopy (NMR) and fluorescence anisotropy. Lipari and Szabo demonstrated how to study the internal dynamics of molecules, where overall rigid body rotational diffusion is separated from the more local internal motions which are described by the order parameter S.

The cover image for this issue of Biophysical Journal includes one of the original figures from the 1980 Lipari and Szabo paper (center) and is complemented by representations of the protein myoglobin, with cones representing the amplitude of internal motion of methyl groups in the interior of the molecule, as inferred from the temperature factors obtained for a room-temperature crystal structure. In representing the molecule within the glassy sphere similar to a marble, we try to capture the concept of the rigid body rotation of the molecule, while with the pink cones we communicate the approximate degree of motion for the atoms. By determining the amplitude of motion in biomolecules on the timescales of ps-ns we discover the degree of flexibility of these entities and try to relate the degree of motion on these timescales to biological function.

The original paper from Lipari and Szabo was followed by two papers by the same authors that described the details of the model free approach. Since then, order parameters have been determined for many different backbone and side chain atoms of various proteins. These studies have illuminated the dynamic nature of biomolecules, which we continue to study at ever increasing spatial and temporal resolution.

– R. Bryn Fenwick and H. Jane Dyson


Get to Know: Paul Axelsen, BPS Treasurer

We recently spoke with Biophysical Society Treasurer Paul Axelsen, University of Pennsylvania, about who he admires, why he appreciates serving as treasurer, and what he loves about being a pilot.

Axelsen, Paul - PHOTOWhat is your current position & area of research?

I am in the Department of Pharmacology at Penn with secondary appointments in the Department of Biochemistry and Biophysics, and in the Department of Medicine.

Everyone in the lab, in some way, studies the problem of amyloidogenesis in Alzheimer’s disease, which we suspect may result from protein-lipid interactions rendered pathological by oxidative stress.

What drew you to a career as a biophysicist?

The enthusiasm of my pre-doctoral and postdoctoral mentors for the field!  Before I was in any position to judge for myself, they held up the Biophysical Society, its Journal, and its Annual Meeting as a model for how science should be done at the highest levels.

What do you find unique or special about BPS?  What have you enjoyed about serving as treasurer?

Without question, the answer to both questions is: the people involved in leadership.  Becoming involved in BPS committees and Council greatly expanded the number of people I knew outside my field, and broadened my perspective on science.

Who do you admire and why?

That generation of scientists – now largely gone – who stayed “hands-on” in the lab throughout their careers, who made their own reagents and instruments, and who can be credited with creating the modern popular expectation that basic science can solve practical problems.



The Wright Brothers Memorial in Kitty Hawk, North Carolina is visible on a hill behind the airstrip where the Wright brothers first flew. 112 years later, Paul made it there in about 2 hours from Philadelphia.


I hear you are a pilot. What made you want to fly? What do you love about it?

Powered flight is one of the greatest human inventions of the past few hundred years, and many aspects of flight just cannot be experienced by watching videos or even IMAX films.  It is also an outstanding example of how government, private enterprise, and individuals can organize to create an extraordinarily safe transportation system.  As with the BPS, it is an extraordinary privilege to be a part of such an organization.

What is something BPS members would be surprised to learn about you?

I vaguely recall having worked as a professional musician throughout most of the ‘70s.


Science Fares Well in FY 2016

On December 18, Congress passed a $1.5 billion omnibus spending bill that funds the government through September 1, 2016. The bill increases funding for science at several federal agencies, which was made possible by the budget deal in late October that provided relief to sequestration for the discretionary parts of the federal budget (this includes all research programs).

With the budget settled, agencies can now move forward conducting business and making grant awards with the knowledge of how much money they have for the year. The chart below shows information for several programs and agencies of interest to the biophysics community.

Federal Funding for Science Agencies (in millions)


FY 2015 Enacted Level

FY 2016 Enacted Level

Difference between FY 15 and FY 16 Percent change between FY 15 and FY 16

National Institutes of Health

$30,073 $32,100  




National Science Foundation

$7,344 $7,460 $120 1.6%

Department of Energy Office of Science

$5,067 $5,350 $279


NASA Science


$5,589 $344


NIST Science and Tech Laboratories


$690 $755


Department of Defense Basic Research $2,278 $2,309 $31.5


Veteran’s Affairs Medical and Prosthetic Research $588.9 $631 $42.1


And, here are a few notes:

  • The $2 billion increase for NIH is the largest increase for the agency since 2003. This is a huge win for the biomedical community! Within that amount $200 million is designated for the Precision Medicine Initiative (PMI); $936 million for Alzheimer’s disease research (which is a $350 million increase); $150 million for the BRAIN Initiative (an increase of $85 million); and $100 million to National Institute for Allergy and Infectious Diseases (NIAID) for antimicrobial resistance research.
  • Within the NSF budget, “Research and Related Activities”receives a $100 million increase over FY 2015; this is the account that from which funding for research grants comes.  The “Major Research Equipment and Facilities Construction” line decreased $45 million from FY 2015.
  • The language that appeared in a House appropriations bill for NSF earlier in the year and that would have decimated the Social and Behavioral Sciences (SBE) and the Geosciences Directorates was removed.  Instead, included language states that SBE should be funded at no more than the FY 2015 level. The House Science Commitee and NSF have been in an elongated battle over how NSF selects grants.  NSF must continue to certify that all awards are in “the national interest.”

With 2016 wrapped up, its time to start the process for funding the government for 2017. The Administration  have been working on their proposals since the summer. The process should be made a bit easier by the budget deal that was struck in October; it created a top line number for both 2016 and 2017.  The President will  lay out his vision for his last year in office during the State of the Union on January 12.  He typically sends his budget request to Congress the first week of February.