Biophysics sits at the fascinating intersection where the laws of physics meet the complexity of living systems. This field uses tools like light, electricity, and mechanical forces to decode how cells move, how proteins fold, and how our senses translate the world around us. Rather than just observing biology, biophysicists measure and model life to understand the fundamental machinery that powers every organism.

On Gist.Science, we make these discoveries accessible by curating the latest preprints directly from bioRxiv. Our team processes every new submission in this category, providing both clear, plain-language overviews and detailed technical summaries so readers of all backgrounds can grasp the cutting-edge science. Below are the most recent biophysics papers from bioRxiv, ready for you to explore.

⚛️ biophysics

Serum modulates the aggregation - toxicity landscape of the staphylococcal toxin PSMα3

This study demonstrates that serum lipoproteins inhibit the formation of cytotoxic soluble oligomers of the Staphylococcus aureus toxin PSMα3, revealing that these early aggregation intermediates, rather than mature fibrils, drive cell death and highlighting the critical role of the cellular environment in modulating bacterial virulence.

Bonnecaze, L., Duchalet, A., Moine, L., Vial, A., Cardenas, M., Martin, C., Molinari, M., Marsaudon, S., Mathelie-Guinle (…)2026-02-22
⚛️ biophysics

E. coli extracellular matrix: a tunable composite with hierarchical structure

This study reveals that *E. coli* biofilms function as a tunable hierarchical composite material where the mechanical properties and emergent structure arise from the constrained swelling of pEtN-cellulose interacting with rigid curli amyloid fibers, offering new insights for engineering living bio-sourced materials.

Siri, M., Mangiarotti, A., Seewald, A., Rosenthal, N., Amini, S., Raguin, E., Fratzl, P., Bidan, C. M.2026-02-22
⚛️ biophysics

RNA Selectively Modulates Activity of Virulent Amyloid PSMα3 and Host Defense LL-37 via Phase Separation and Aggregation Dynamics

This study reveals that RNA acts as a context-dependent regulator of the virulent amyloid peptide PSMα3 and the host-defense peptide LL-37 by modulating their phase separation and aggregation dynamics, thereby selectively preserving PSMα3's cytotoxicity while suppressing LL-37's toxicity to human cells without compromising its antibacterial function.

Rayan, B., Barnea, E., Indig, R., Pantoja, C. F., Gayk, J., Lupu-Haber, Y., Upcher, A., Argoetti, A., Aunstrup Larsen, J (…)2026-02-20
⚛️ biophysics

Chronotype asymmetry arises from stochastic sleep homeostasis under circadian entrainment

This study demonstrates that the paradoxical right-skewed distribution of human chronotypes, despite a left-skewed distribution of intrinsic circadian periods, arises from stochastic variability in homeostatic sleep pressure dynamics near the unstable boundaries of circadian entrainment, cautioning against inferring intrinsic circadian period directly from chronotype.

Nguyen, N. T., Truong, V. H., Myung, J.2026-02-20
⚛️ biophysics

Magnetic sensitivity of cryptochrome 4a in domesticated quail with migratory origins

This study demonstrates that purified CRY4a from domesticated Japanese quail exhibits magnetic properties similar to those of European robin CRY4a, establishing the quail as a promising new experimental model for investigating the mechanisms of avian magnetoreception.

Bartoelke, R., Henbest, K. B., Schmidt, J., Kasahara, T., Cubbin, D. R., Gravell, J., Bassetto, M., Dautaj, G., Pitcher (…)2026-02-20
⚛️ biophysics

A rapid, low-cost approach to solid immersion lens fabrication for enhanced resolution in optical microscopy

This paper presents a rapid, ultra-low-cost method for fabricating optical-quality hemispherical solid immersion lenses using consumer-grade UV-curable resin, which significantly enhances the spatial resolution of standard microscopes to near-theoretical limits while offering a scalable and accessible solution for both research and optics education.

Rooney, L. M., Christopher, J., Foylan, S., Butterworth, C., Walker, L. D., Copeland, L., Coubrough, K., The SOMC 2025 C (…)2026-02-20
⚛️ biophysics

Cracking the Capsid Code: A Computationally-Feasible Approach for Investigating Virus-Excipient Interactions in Biologics Design

This paper introduces CapSACIN, a computationally feasible framework that abstracts viral capsid surfaces to enable high-throughput, atomistic investigation of virus-excipient interactions, successfully predicting thermal stability effects in porcine parvovirus and identifying molecular weaknesses at the 2-fold symmetry axis.

Zajac, J. W. P., Tohidian, I., Muralikrishnan, P., Perry, S. L., Heldt, C. L., Sarupria, S.2026-02-19