Cell refractive index: Models, insights, applications and future perspectives

B Gul, S Ashraf, S Khan, H Nisar, I Ahmad - … and photodynamic therapy, 2021 - Elsevier
Cell refractive index (RI) is an intrinsic optical parameter that governs the propagation of
light (ie, scattering and absorption) in the cell matrix. The RI of cell is sensitively correlated …

Mesoscale computational studies of membrane bilayer remodeling by curvature-inducing proteins

N Ramakrishnan, PBS Kumar, R Radhakrishnan - Physics reports, 2014 - Elsevier
Biological membranes constitute boundaries of cells and cell organelles. These membranes
are soft fluid interfaces whose thermodynamic states are dictated by bending moduli …

Rapid propagation of membrane tension at retinal bipolar neuron presynaptic terminals

C Gomis Perez, NR Dudzinski, M Rouches… - Science …, 2022 - science.org
Many cellular activities, such as cell migration, cell division, phagocytosis, and exo-
endocytosis, generate and are regulated by membrane tension gradients. Membrane …

Measuring shape fluctuations in biological membranes

C Monzel, K Sengupta - Journal of Physics D: Applied Physics, 2016 - iopscience.iop.org
Shape fluctuations of lipid membranes have intrigued cell biologists and physicists alike. In
the cellular context, their origin—thermal or active—and their physiological significance are …

Modeling receptor-mediated endocytosis of polymer-functionalized iron oxide nanoparticles by human macrophages

O Lunov, V Zablotskii, T Syrovets, C Röcker, K Tron… - Biomaterials, 2011 - Elsevier
Although systemically applied nanoparticles are quickly taken up by phagocytic cells, mainly
macrophages, the interactions between engineered nanoparticles and macrophages are …

Cell cytoskeleton and tether extraction

B Pontes, NB Viana, LT Salgado, M Farina, VM Neto… - Biophysical journal, 2011 - cell.com
We perform a detailed investigation of the force× deformation curve in tether extraction from
3T3 cells by optical tweezers. Contrary to conventional wisdom about tethers extracted from …

Three-dimensional imaging of biological cells with picosecond ultrasonics

S Danworaphong, M Tomoda, Y Matsumoto… - Applied physics …, 2015 - pubs.aip.org
We use picosecond ultrasonics to image animal cells in vitro—a bovine aortic endothelial
cell and a mouse adipose cell—fixed to Ti-coated sapphire. Tightly focused ultrashort laser …

A molecular rotor based on an unhindered boron dipyrromethene (Bodipy) dye

MAH Alamiry, AC Benniston, G Copley… - Chemistry of …, 2008 - ACS Publications
This work describes a fluorescent probe for following changes in the viscosity of the
surrounding medium. The optical properties, fluorescence characteristics, and sensitivity to …

In Vitro picosecond ultrasonics in a single cell

C Rossignol, N Chigarev, M Ducousso… - Applied Physics …, 2008 - pubs.aip.org
Ultrasonics signals at frequencies 5.7±0.1 and 6.8±0.1 GHz are measured in two organelles
of a single vegetal cell in vitro with a picosecond ultrasonic technique. Using standard …

Effects of cholesterol on nano-mechanical properties of the living cell plasma membrane

N Khatibzadeh, S Gupta, B Farrell, WE Brownell… - Soft Matter, 2012 - pubs.rsc.org
In this study, we investigated the effects of membrane cholesterol content on the mechanical
properties of cell membranes by using optical tweezers. We pulled membrane tethers from …