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Optically-addressable spin qubits form the foundation of a new generation of emerging nanoscale sensors. The engineering of these sensors has mainly focused on solid-state systems such as the nitrogen-vacancy (NV) center in diamond.…

Purpose: Intra-operative measurement of tissue oxygen saturation (StO2) is important in the detection of ischemia, monitoring perfusion and identifying disease. Hyperspectral imaging (HSI) measures the optical reflectance spectrum of the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Qingbiao Li , Jianyu Lin , Neil T. Clancy , Daniel S. Elson

The rotary sequential hydrolysis of metabolic machine F1-ATPase is a prominent feature to reveal high coordination among multiple chemical sites on the stator F1 ring, which also contributes to tight coupling between the chemical reaction…

Biological Physics · Physics 2017-11-22 Liqiang Dai , Holger Flechsig , Jin Yu

We introduce a simple procedure of multivariate signal analysis to uncover the functional connectivity among cells composing a living tissue and describe how to apply it for extracting insight on the effect of drugs in the tissue. The…

Biological Physics · Physics 2014-06-11 Marcelo Pires , Frank Raischel , Sandra Vaz , Andreia Cruz-Silva , Ana Sebastião , Pedro G. Lind

Femtosecond pump-probe spectroscopy is applied to identify transient optical signatures of phase transitions in optimally doped YBa2Cu3O7-{\delta} films. To elucidate the dynamics of superconducting and pseudogap phases, the slow thermal…

Superconductivity · Physics 2015-06-12 Chunfeng Zhang , Wei Li , B. Gray , Bin He , Ye Wang , Fan Yang , Xiaoyong Wang , J. Chakhalian , Min Xiao

Integrating two-dimensional (2D) crystals into optical fibers can grant them optoelectronic properties and extend their range of applications. However, our ability to produce complicated structures is limited by the challenges of chemical…

Applied Physics · Physics 2018-07-03 Yi-feng Xiong , Jin-hui Chen , Fei Xu

The discovery of graphene has put the spotlight on other layered materials including transition metal dichalcogenites (TMD) as building blocks for novel heterostructures assembled from stacked atomic layers. Molybdenum disulfide, MoS2, a…

Mesoscale and Nanoscale Physics · Physics 2014-09-19 Chih-Pin Lu , Guohong Li , Jinhai Mao , Li-Min Wang , Eva Y. Andrei

External information propagates in the cell mainly through signaling cascades and transcriptional activation, allowing it to react to a wide spectrum of environmental changes. High throughput experiments identify numerous molecular…

Molecular Networks · Quantitative Biology 2011-01-25 M. Bailly-Bechet , C. Borgs , A. Braunstein , J. Chayes , A. Dagkessamanskaia , J. -M. François , R. Zecchina

A beam tagging hodoscope prototype made of squared 1 mm$^2$ fibers arranged in two perpendicular planes and coupled to multi-anode photomultipliers has been studied using 65 MeV proton as well as 95 MeV/u $^{12}$C beams at various…

Real-time monitoring of dynamic biological processes in the body is critical to understanding disease progression and treatment response. This data, for instance, can help address the lower than 50% response rates to cancer immunotherapy.…

Analysis of fluorescent spectra from complex biological systems containing various fluorescent probes with overlapping emission bands is a challenging task. Valuable information can be extracted from the full spectra, however, by using…

Biological Physics · Physics 2009-02-19 Jorge J Wenz , Francisco J Barrantes

The ARF-AID (Auxin Response Factor-Auxin Inducible Degron) system is a re-engineered auxin-inducible protein degradation system. Inducible degron systems are widely used to specifically and rapidly deplete proteins of interest in cell lines…

Quantitative Methods · Quantitative Biology 2020-03-02 Kizhakke Mattada Sathyan , Thomas G. Scott , Michael J. Guertin

Dielectrophoretic (DEP) sensing is an extremely important sensing modality that enables the rapid capture and detection of polarizable particles of nano-scale size. This makes it a versatile tool for applications in medical diagnostics,…

Mesoscale and Nanoscale Physics · Physics 2025-11-26 Nezhueyotl Izquierdo , Ruixue Li , Peter R. Christenson , Sang-Hyun Oh , Steven J. Koester

We theoretically analyze possible multiple conformations of protein molecules immobilized by 1-pyrenebutanoic-acid-succinimidyl-ester (PASE) linkers on graphene. The activation barrier between two bi-stable conformations exhibited by PASE…

Chemical Physics · Physics 2023-12-15 Yasuhiro Oishi , Motoharu Kitatani , Koichi Kusakabe

Ferroptosis, a regulated form of cell death driven by oxidative stress and lipid peroxidation, has emerged as a pivotal research focus with implications across various cellular contexts. In this study, we employed a multifaceted approach,…

Intracellular cargo transport can arise from passive diffusion, active motor-driven transport along cytoskeletal filament networks, and passive advection by fluid flows entrained by such motor/cargo motion. Active and advective transport…

Biological Physics · Physics 2012-07-24 P. Khuc Trong , J. Guck , R. E. Goldstein

Liquid-based applications of biomolecule-decorated field-effect transistors (FETs) range from biosensors to in vivo implants. A critical scientific challenge is to develop a quantitative understanding of the gating effect of charged…

Mesoscale and Nanoscale Physics · Physics 2017-08-31 Jinglei Ping , Jin Xi , Jeffery G. Saven , Renyu Liu , A. T. Charlie Johnson

Intracellular chromophores (e.g., NADH and FAD) play a central role in regulation of cellular metabolism. Though autofluorescence has been extensively used for label-free mapping of chromophores inside a cell, its sensitivity and molecular…

Currently, cellular action potentials are detected using either electrical recordings or exogenous fluorescent probes sensing calcium concentration or transmembrane voltage. Ca imaging has low temporal resolution, while voltage indicators…

Protein-protein interactions are the basis of many important physiological processes and are currently promising, yet difficult, targets for drug discovery. In this context, inhibitor of apoptosis proteins (IAPs)-mediated interactions are…

Biomolecules · Quantitative Biology 2021-03-22 Federica Cossu , Luca Sorrentino , Elisa Fagnani , Mattia Zaffaroni , Mario Milani , Toni Giorgino , Eloise Mastrangelo
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