Biological Physics & Physical Biology Seminar

Seminar Information

BP/PB seminars are held most Fridays. The first talk begins at 8 am pacific/ 9 am mountain/ 10 am central/ 11am eastern in the US, which is 4 pm in the UK/ 5 pm in central Europe/ 9:30 pm in India/ 12 midnight in Beijing. The second talk starts at half past the hour. 

The goal of the series is to highlight interesting current research in biophysics, broadly defined.

Email list signup and talk zoom information: Click here to join the mailing list and/or volunteer to speak.  Zoom information for each seminar will be shared with the mailing list on Wednesdays, and again in a reminder email on Fridays shortly before the talks begin.

Past talk videos: The BPPB  YouTube channel has recordings of selected past talks. 

Organizers: A rotating cast of organizers has helped to sustain this seminar series over the past few years. The current team is: Sonya Bahar, Jing Chen, Moumita Das, Andrej Košmrlj, Enkeleida Lushi, and Ashok Prasad. 

Follow us on Twitter @bppbseminar


Upcoming Seminars

Friday, Nov 22


Robin Selinger

How are topological defects created? The Frank-Read source mechanism

Image visualization created by Cheng Long


Pierre Haas

Mechanics of poking cysts and folding tissues

Friday, Dec 6


Maciej Lisicki

Tutorial + Talk TBA



Friday, Dec 13


Ting Lu

TBA



Jingjie Hu

TBA


Friday, January 10, 2025


Munehiro Asally

TBA


Brian Camley

TBA



Friday, January 17, 2025


Sara Faraouji

TBA



Clarice Aiello

TBA



Friday, January 24, 2025


Emanuela Del Gado

Tutorial & Talk TBA



Friday, January 31, 2025


Tapomoy Bhattacharjee

TBA





Raffaella De Vita

TBA



Friday, February 7, 2025


Karen Alim

TBA



Qin (Maggie) Qi

TBA



Friday, February 14, 2025


Julia Yeomans

Tutorial & Talk TBA



Friday, February 21, 2025


Amaresh Sahu

TBA



Jingyu Zhang

TBA



Past Seminars

Friday, Nov 15


Sarah Veatch

Protein prewetting at membranes is enhanced by the membrane phase transition

Zian Jia

Biological architected materials with extreme and unusual properties

Friday, Nov 8


Arnold Mathijssen

Tutorial

Holographic microscopy to track bacterial motility in 3D



Talk

Bacterial upstream swimming in complex fluids



Friday, Nov 1


Mehrana Nejad

Activity-induced interfacial pattern in bacterial droplet



Itay Budin


How phospholipids change their shape for life in the deep sea

Friday, Oct 25


Tine Curk

Collective effects in super-selective targeting of cell membranes

Zheng Shi


Aspirating Condensates in Living Cells

Friday, Oct 18


Luciana Bruno

The mechanical crosstalk between mitochondria and the cytoskeleton



Nuris Figueroa

Bacteria swimming in anisotropic media: Locomotion strategies in the face of physical constraints

Friday, Oct 11


Alfredo Sciortino

Microtubules as Maxwell's demons: active transport-based phase-separation of a binary motor mixture



Friday, Oct 4


Sahand Rahi

Gambling with your future: Why and how the DNA damage checkpoint does not play it safe

Eleonora Secchi

Formation Dynamics And Rheology of Bacterial Biofilms under Fluid Flow


Friday, September 27


Rumiana Dimova


Membrane remodeling in artificial cells: when a membrane meets a drop


Liselotte Jauffred

How motility and morphology accelerates expansion



Friday, September 20


Cristina Savin


Uncovering the neural dynamics underlying latent state inference

Yun Chen

Studying under-explored physical parameters in biology: viscosity and magnetism



Friday, September 13 

Mattia Serra

Control of Modular Tissue Flows Shaping the Embryo in Avian Gastrulation



Piere Rodriguez-Aliaga


Dissecting the Structural Basis of Huntingtin Pathogenesis - one molecule at a time

Friday, September 6 

Ewa Paluch

Tutorial and Talk: 

Mechanics of cellular shape control



Friday, Aug 30


BREAK



Friday, Aug 23


BREAK



Friday, Aug 16


Ian Wong


Topological data analysis of collective cell migration

Mengsen Zhang


Multistability and transitions – the connecting thread across neural-social systems

Friday, Aug 9


Shiladitya Banerjee


Dynamic Energy Allocation Theory

Alexander Mietke


Mechanics of asymmetric cell division

Friday, Aug 2


Aravind Rao Karanam


Eukaryotic Chemotaxis under Periodic Stimulus: Evidence for Temporal Gradient Sensing



Deepak Krishnamurthy


How Mechanics Encodes Behavior: Emergent Programmable Behavior and Chaos in Self-driven Active Filaments


Image credit: Rebecca Konte

Friday, July 26


Sho Takatori


Phase separation in 2D active networks

Yi Jiang


Collective cancer invasion with and without leaders 

Friday, July 19


Jake Socha


The mechanics of snakes in flight

Maryam Kohram


Bacterial aging as a consequence of heterogeneity-driven adaptability

Friday, July 12


Raj Kumar Manna


Dynamical forces drive organ morphology changes during embryonic development

Margaret Byron


Flexibility and flow: deformable biopropulsors at intermediate Reynolds numbers

Friday, June 28


Mazi Jalaal


Light Production and Adaptive Morphodynamics in an Active Biological System

Friday, June 21


Karen Kasza


Stress management: dissecting how epithelial tissues flow and fold

Friday, June 7


Cynthia Reichhardt


Complex Dynamics in Active Matter Systems, Frustration Effects, Magnus Forces, and Machine Learning



David Zwicker


Physics of phase separation inside biological cells

Friday, May 24


Suckjoon Jun


Tutorial 


Towards econophysiology: principles of cellular resource allocation in E. coli


Research Talk


Towards econophysiology: principles of cellular resource allocation beyond E. coli


Friday, May 17


Daniel Charlebois


Genetic networks, gene expression noise, and drug resistance evolution

Francisca Guzmán-Lastra


Active carpets in floating viscous films

Friday, May 3


Sara Walker


Assembly Theory

Eric Deeds


A lack of distinct cellular identities in scRNA-seq data: revisiting Waddington’s landscape

Friday, Apr 26


Sara Hashmi


Intermittency and clogging in complex fluid flows through confined geometries

Sunny Jung


Physics in spore dispersal

Friday, Apr 19


Katie Newhall


Different relative scalings between transient forces and thermal fluctuations tune regimes of chromatin organization

Hernan Garcia


Lighting up vertebrate segmentation

Friday, Apr 12


Abby Plummer


Obstructed swelling and fracture of hydrogels

Allen Liu


Building synthetic cells with a cytoskeleton

Friday, Apr 5


Dimitrios Vavylonis


Cell patterning for division and growth

Friday, Mar 29


Rastko Sknepnek 


Cell-level modelling of active forces in early-stage embryo development

Paul Wiggins 


When is too much not enough? Protein overabundance and the principles of central dogma regulation

Friday, Mar 22


Moumita Das 


Circadian materialscape: Scheduled material self-assembly controlled by bacterial clock proteins

Natasha Mhatre 


What moves (in) an insect ear: active auditory amplification in tree crickets

Friday, Mar 15


Sadjad Arzash


Rigidity of Epithelial Tissues as a Learning Problem

Friday, Mar 1


John Bechhoefer 

TUTORIAL (Control Theory for (Bio)Physicists




John Bechhoefer 

Talk (Motors made with Maxwell demons)


Friday, Feb 23


Anne Staples 


Bioinspired microfluidics: Lessons from insect respiratory mechanics

Friday, Feb 16


Daniel Matoz-Fernandez


Crafting Shapes: The Impact of Active Mechanics on Thin Sheet Structures






Mikhail Tikhonov


Emergent Simplicity in Microbial Ecosystems

Friday, Feb 9


Ariana Strandburg-Peshkin


Communication and collective behavior in animal societies



Takao Sasaki


Collective learning and coordination

Friday, Feb 2


Mimi Koehl


Tutorial


Locomoting in a turbulent environment: Ways to study microscale processes in a large-scale ocean



Mimi Koehl


Talk


How do microscopic larvae of bottom-dwelling marine animals recruit to suitable habitats in turbulent water flow?

Friday, Jan 26, 2024


Medha Pathak


Molecular Choreography of Piezo1 during Development and Repair 



Julio Belmonte


Connectivity and Contraction in Cytoskeletal Networks

Friday, December 15


Matej Krajnc


Graph vertex model of cell aggregates



Bekele Gurmessa


The Interplay of F-Actin Stabilization and Crosslinking: A Microrheological Exploration

Friday, December 8


Ioana Ilie


From atoms to blobs: Multiscale simulations of amyloidogenic polypeptides



Aleksandra Nelson


Non-reciprocity permits edge states and strong localization in stochastic topological systems

Friday, November 17



Nenad Pavin


Exploring Tumor Karyotype Evolution Using the 'Macro-Karyotype’ Concept 

Friday, November 10


Abhyudai Singh


Stochasticity in timing of intracellular events: A first-passage time approach

Friday, November 3


Daniel Needleman


Active Matter, Microtubules, and Cell Division

Friday, October 27


1. Saad Bhamla


The Blob: Topologically Entangled Living Matter



2. André Longtin


Entropy production and flow in humans under heat stress and exercise

Friday, October 20


1. Silke Henkes


Making the cornea spiral: Constructing quantitative simulations of epithelial cell sheets

2. Kayla Sprenger


Design of vaccine components and protocols for inducing protective antibodies against HIV

Friday, October 13


Suriyanarayanan Vaikuntanathan


“Active” associative memory

Friday, September 29, 2023


1. Allyson Sgro


Understanding the emergence of microbial collective behaviors



2. Jürgen Kurths


Stability of power grid concerning tropical cyclones: Increasing resilience by protecting critical lines


Friday, September 22, 2023


1. Jing Chen


Sticking with two poles: Critical biophysical factors for rescuing mitotic spindle from monopolar and multipolar abnormalities



2. Zhiyue Lu


A Far-from-steady-state Theoretical Framework for Information Transduction via Stochastic Biosensors

Friday, September 15, 2023


1. Juan B. Gutiérrez


Collective Human Behavior




2. Abdul N. Malmi Kakkada


Collective Cell Migration Driven by Mechanical Coupling 

Friday, July 28, 2023


Tutorial + Talk: Tim Atherton


Shape Sculpting and Shapeshifting with Soft Matter


Friday, July 21, 2023


1. Elio Abbondanzieri


A bridge too far: Bridging DNA contacts allow Dps from E. coli to condense DNA




2. Daniel Paranhos Zitterbart


Phase transitions in emperor penguin huddling behavior and its application in conservation biology

Friday, July 14, 2023


William Bialek


Finding evidence for scale invariance in animal behavior


Friday, July 7, 2023


Tao Zhang


Modeling collective interactions between spheroids and collagen fibers


Friday, June 30, 2023


1. Herve Turlier


From microscopy images to mechanical models of tissues and back




2. Daniel Cohen

Adventures in Cellular Herding—understanding and controlling collective cell migration

Friday, June 16, 2023


1. Guillaume Duclos


Microscopic interactions control a structural transition in active mixtures of microtubules and molecular motors




2. Zeb Rocklin

Modeling rigidity in tensegrity systems

Friday, June 9, 2023


1. Kate Jensen
Liverwort gemmae interact as capillary multipoles



2. Yaouen Fily
Evolution of Collective Swimming in the Mexican Cavefish

Friday, June 2, 2023


Irene Georgakoudi


Tutorial: Label-free, two photon metabolic imaging 

Talk: Disease detection and treatment monitoring via non-invasive, high resolution, optical metabolic imaging 

Friday, May 26, 2023


1. Ben Rogers
The role of complexity in self-limited assembly of tubules from nanoscale building blocks

2. Qiong Yang

From molecules to development: Biological timing and patterning


Friday, May 19, 2023


Deep Learning for Imaging and Microscopy

2. Jonathan Michel

Tuning Semiflexible Biopolymer Network Mechanics through Structurally Correlated Assembly

Friday, May 12, 2023


The Chromokinesin KLP-19 affects microtubule dynamics and shifts the force balance during mitosis

Friday, May 5, 2023


Friday, April 28, 2023


Unraveling Multiple Mechanisms of Long Non-Coding RNA Regulation through Transcriptional Stochasticity

2. Elizabeth Read

Modeling and Inference to Understand Collective Stability of Epigenetic Marks

Friday, April 21, 2023


Inferring intracellular mechanics from active and passive measurements

Friday, April 21, 2023


2. Hossein Jashnsaz (Vanderbilt University)
Predictive mathematical models of signal transduction in temporal environments

Friday, April 14, 2023


Friday, April 7, 2023


Friday, March 31, 2023


Talking to Cells: Engineering Dynamic Cell-Material Interfaces to Guide Cell Fate 



2. Meng (Stephanie) Shen

Tuning Electrostatic-Mediated Self- Assembly Beyond the Classical Theory 

Friday, March 17, 2023


Quantized metachronal waves in arrays of cilia


2. Jie Liang

Minimalist 3D Chromatin Polymer Models: Structure and Function of 3D Genome


Friday, March 3, 2023

1) Keisukei Ishihara, University of Pittsburgh

Topological control of organoid morphogenesis



2)  Diego Krapf, Colorado State University

Understanding non-Brownian diffusion in the cytoplasm of mammalian cells

Friday, February 10, 2023


1.  Daphne Klotsa: A touch of non-linearity: mesoscale swimmers and active matter in fluids




2. Thomas Fai: Modeling the fluid dynamics of vesicle transport into dendritic spines

Friday, February 3, 2023


John Tyson, Virginia Tech, Department of Biological Sciences

Tutorial: A Dynamical Paradigm for Molecular Cell Biology 


Friday, January 27, 2023


Statistical dynamics of tumor initiation and progression

2. Barbara Jones IBM Quantum, IBM Research Almaden

Dynamics of Viral Evolution and Mutation: a study of viruses in and around cells

Friday, December 16, 2022


1: Synthetic Biology: Physical Biology by Design
James J. Collins



2: Role of Cell Surface Mechanics in Leukocyte Adhesion
Richard Waugh

Friday, December 2, 2022


1: The Hopfield Network and its generalizations
Pankaj Mehta

2: scTOP: physics-inspired order parameters for cell identity and development

 
Pankaj Mehta 

Friday, Nov 18, 2022


Alice Quillen 

2:Topology-Sensing Reaction-Diffusion Systems in Active Nematics.
Mike Norton

Friday, Nov 4, 2022


1: Tutorial -- Stochastic System Identification Toolkit to Interpret and Design Noisy Single-Cell FISH Experiments
Brian Munsky

2: Integrating Mechanistic Models and Machine Learning to Interpret and Design single-mRNA Nascent Chain Tracking Experiments
Luis Aguilera de Lira 

Friday, October 28, 2022


1: What wakes us? Networked clocks in the brain vs. Daylight Saving Time
Erik Herzog

2: Biological Physics of Chromatin Structure-Mediated Gene Regulation in Yeast & Fly
Alexandre Morozov

Friday, October 21, 2022


1: Information transduction in heterogeneous cell populations
Purushottam Dixit 


2: Emergent Actin Flows Explain Distinct Modes of Gliding Motility
Christina Hueschen

Friday, October 14, 2022


1: Dynamics-based data science in biology
Luonan Chen

2:Coordinating systems-level organelle biogenesis with cellular growth
Shankar Mukherji

2: Structured population models: applications and kinetic theory
Tom Chou

Friday, Sept 30, 2022


1: Curvature sensing as an emergent property of multi-scale assembly of septins
Ehssan Nazockdast

Friday, Sept 23, 2022


1: Hamiltonian Biology
Kingshuk Ghosh

2: Time-evolution of mechanical and transport characteristics in crowded biomimetic networks
Janet Sheung

Friday, Sept 16, 2022


1: How cells stay out of thermal equilibrium by proliferating at high and frigid temperatures
Hyun Youk



2: Genes on the move: Measuring the rate and evolution of horizontal gene transfer
Ben Kerr

Friday, Sept 2, 2022


1: Tutorial: Building a proportional cell
Jane' Kondev



2: Research Talk:  How cells measure length
Jane' Kondev

2: Multiscale spatiotemporal reconstruction of single-cell genomics data
Qing Nie

Friday, Aug 19, 2022


1: Observing membranes in action on nanosecond timescales
Rana Ashkar



2: From nanotech to living sensors: unraveling the spin physics of biosensing at the nanoscale
Clarice Aiello

Friday, Aug 12, 2022


1: Tutorial Talk: Multicellular is Different: Biophysics and the Evolution of Multicellularity
Peter Yunker



2: Research Talk: Soft Matter of Life: The Evolution of Multicellularity
Peter Yunker

Friday, Aug 5, 2022


1: Getting cool things for 'free': biophysical insights from our Multicellularity LTEE (Long Term Evolution Experiment)
Will Ratcliff



2: The geometry of phenotypes : Cell shapes as a mirror of Cell states
Ashok Prasad

Friday, July 15 2022


1: Self-organization via non-reciprocal interactions
Ramin Golestanian



2: Stochastic Phase Synchronization in Focal Neocortical Seizures
Sonya Bahar



2: Pulsating active matter
Étienne Fodor

Friday, June 17 2022


1: Self-organization and shape regulation in bio-inspired droplets
Kimberly Weirich



2: Cytoplasmic streaming during 3D cell migration
Wanda Strychalski 

Friday, May 27, 2022


1: Hill-type, bioinspired actuation delivers energy economy in DC motors
José Alvarado

2: Mechanics of Primary Cilia

Yuan-Nan Young

Friday, May 13, 2022


Tutorial: Rheology of active suspensions

David Saintillan

Talk: Active hydrodynamics of interphase chromatin

David Saintillan

Friday, May 6, 2022


1. Topological Mechanics in Biological Systems

Camelia Prodan 

2. Cell polarity as a driver of diversity and robustness in developing morphologies

Ala Trusina

Friday, April 29, 2022


1. Autonomous mechano-adaptation in bacterial swimming motility

Navish Wadhwa

2. Proteins in a crowd under heat and pressure

Margaret Cheung 

Friday, April 22, 2022


1. Do active nematic self-mixing dynamics help growing bacteria colonies maintain genetic diversity?

Daniel Beller

2. Impact of mechanics on actin filament disassembly

Hugo Wioland

Friday, April 15, 2022


Carla Mulas

2. Cells use mechanical communication 

to optimally network

Kinjal Dasbiswas

Friday, April 8, 2022


Jing Chen

2. Using computational fluid dynamics to understand the mechanics of jellyfish swimming and feeding

Laura Miller

Friday, April 1, 2022


Jeremy Schmit

2. Predicting robust emergent function in stochastic systems

Evelyn Tang

Friday, March 25, 2022


Jie Lin

2. Physics of morphogenetic matter

Margaret Gardel

Friday, March 18, 2022


APS March Meeting, No talk

Friday, March 11, 2022


1. Cutting through the mechanics of three-dimensional elastic cell sheets

Stephanie Hoehn

2. Epigenetic inheritance and its influence on future generations phenotype in bacteria

Hanna Salman

2.  Research talk: Cytoplasmic divisions without nuclei

Mustafa Aydogan

Friday, February 25, 2022


1. Biomechanics and mechanobiology funding opportunities for all career stages at the U. S. National Science Foundation

Wendy Crone

2. Bayesian nonparametrics for single molecule

Steve Presse

Friday, February 18, 2022


1. The dynamics of cell migration in flat and curved confining geometries

Chase Broedersz

2. Swimming through the weeds, bacterially

Suraj Shankar

Friday, February 11, 2022


1. Quantification of approximate symmetries in evolution and development

Adrianna Dawes

2. Phototaxis of microalgae: lessons from Chlamydomonas an Micromonas

Marco Polin

Friday, February 4, 2022


1. Tutorial: Fundamental equations for mechanics and transport of cytoskeleton

Alex Mogilner

2.  Steady and wavy actomyosin contraction

Alex Mogilner

Friday, January 28, 2022


1. Design of vesicle prototissues as a model for cellular tissues

Laura Casanellas

2.  From atomic scale molecular diffusion to hierarchical free energy landscape of transcription factor protein search on DNA

Jin Yu

Friday, January 21, 2022


1. Squeezing, pinching, dragging, and pulling: from multiscale models to morphogenesis

Lance Davidson

2. Visceral organ morphogenesis via calcium-patterned muscle contractions

Noah Mitchell 

youtube channel Please visit our previous past seminars page to see the topics in biological physics covered so far in this series.

Past talk videos: Please visit the BP/PB  youtube channel to find recordings of selected past talks.

Acknowledgements

Special thanks to Meredith Betterton, Kim Weirich, and Sri Iyer-Biswas and who were part of the original 2020 organizing team that launched this seminar series!  Also thanks to Nuris Figueroa Morales on the 2021 organizing team!

Thanks to those who have live-tweeted the talks: Peter Foster; Brian Munsky; Guillermina Ramirez-San Juan; Brian Camley; Vivek Prakash; Kirsty Wan; Akanksha Thawani; Haneul Yoo; Olivia Leland; Arnold Mathijssen; Jasmine Nirody; Tapomoy Bhattacharjee; Dan Rokshar; Purushottam Dixit; Anna Bajur; Todd Gingrich; Wallace Marshall; Eric Dufresne; Maggie Johnson; Kinjal Dasbiswas; Ned Wingreen; Rana Ashkar; Manasa Kandula.