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Clear influence of particle size, surfactants and dispersion medium on surface plasmon resonance (SPR) features of Ag nanoparticles (NPs), synthesized in thermal decomposition method, in the broad range of ultraviolet (UV) radiation,…

Applied Physics · Physics 2020-01-29 Vikash Sharma , Divya Verma , Gunadhor Singh Okram

Photoresponse of bimetallic Au-Ag nanoparticle embedded soda glass (Au-Ag@SG) substrate is reported for surface plasmon assisted optical switching using 808 nm excitation. Au-Ag@SG system is made by an ion beam technique where Ag^+ is…

Materials Science · Physics 2015-09-01 Sandip Dhara , C. -Y. Lu , P. Magudapathy , Y. -F. Huang , W. -S. Tu , K. -H. Chen

When a sculptured thin film (STF), made of a metal and $\leq50$ nm thick, is used in lieu of a dense layer of metal in the Kretschmann configuration, experimental data for an STF comprising parallel tilted nanowires shows that a surface…

Optics · Physics 2009-11-13 Ibrahim Abdulhalim , Akhlesh Lakhtakia , Amit Lahav , Fan Zhang , Jian Xu

Particle-based shape modeling (PSM) is a family of approaches that automatically quantifies shape variability across anatomical cohorts by positioning particles (pseudo landmarks) on shape surfaces in a consistent configuration. Recent…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Hong Xu , Shireen Y. Elhabian

Rebinding of dissociated ligands from cell surface proteins can confound quantitative measurements of dissociation rates important for characterizing the affinity of binding interactions. This can be true also for in vitro techniques such…

Quantitative Methods · Quantitative Biology 2007-05-23 Manoj Gopalakrishnan , Kimberly Forsten-Williams , Theressa R. Cassino , Luz Padro , Thomas E. Ryan , Uwe C. Tauber

The spatial sensitivity of an ultrasound transducer, which strongly influences its suitability for different applications, depends on the shape of the transducer surface. Accurate simulation of these spatial effects is important for…

In this study, we present a highly sensitive Surface Plasmon Resonance (SPR)-based biosensor integrated with a circular-lattice Photonic Crystal Fiber (PCF) for early-stage cancer detection. The proposed sensor leverages the synergy between…

This paper presents a comprehensive study on a novel multilayer surface plasmon resonance (SPR) biosensor designed for detecting trace-level toxins in liquid samples with exceptional precision and efficiency. Leveraging the Kretschmann…

Systems and Control · Electrical Eng. & Systems 2025-01-31 Suripto Bhuiyan , Michael Geller

To perform recognition, molecules must locate and specifically bind their targets within a noisy biochemical environment with many look-alikes. Molecular recognition processes, especially the induced-fit mechanism, are known to involve…

Biomolecules · Quantitative Biology 2010-07-27 Yonatan Savir , Tsvi Tlusty

The S-parameter $S_{21}$ is widely used to characterize the resonant properties of various systems. However, we demonstrates that the reliability of $S_{21}$ as a true indicator of system resonances depends heavily on the specific probing…

Mesoscale and Nanoscale Physics · Physics 2025-05-21 Jiongjie Wang , Jiang Xiao

Material surface - analyte interactions play important roles in numerous processes including gas sensing. However, the effects of topological polar surface area (TPSA) of analytes on surface interactions during gas sensing have been so far…

Chemical Physics · Physics 2025-04-16 Nirman Chakraborty , Sagnik Das , Debdulal Saha , Swastik Mondal

This theoretical study, deals with the effect of bi-particle interaction on the surface plasmon resonance (SPR) in a dimer which includes two identical metal nanoparticles (NPs). Considering the dipole-dipole interaction in a Drude-like…

Mesoscale and Nanoscale Physics · Physics 2020-01-14 Asef Kheirandish , Nasser Sepehri Javan , Hosein Mohammadzadeh

We report on a Surface-Plasmon-Resonance (SPR) technique based on Fourier -Transform - Infra - Red (FTIR) spectrometer. In contrast to the conventional surface plasmon technique, operating at a fixed wavelength and a variable angle of…

Soft Condensed Matter · Physics 2013-03-19 V. Lirtsman , M. Golosovsky , D. Davidov

We study the impact of static and dynamic disorder on the phenomenon of stochastic resonance (SR) in a representative soft matter system. Due to their extreme susceptibility to weak perturbations soft matter systems appear to be excellent…

Soft Condensed Matter · Physics 2008-08-20 Matjaz Perc , Marko Gosak , Samo Kralj

Localized surface plasmon resonances possess very interesting properties for a wide variety of sensing applications. In many of the existing applications only the intensity of the reflected or transmitted signals is taken into account,…

In this work we identify coherent electron-vibron interactions between near-resonant and non-resonant electronic levels that contribute beyond standard optomechanical models for off-resonant or resonance SERS. By developing an open-system…

Quantum Physics · Physics 2024-01-19 Miguel A. Martínez-García , Diego Martín-Cano

Localized and propagating surface plasmon resonances are known to show very pronounced interactions if they are simultaneously excited in the same nanostructure. Here we study the fano interference that occurs between localized (LSPR) and…

Plasmonic metamaterials support the localized surface plasmon resonance (LSPR), which is sensitive to the change in the dielectric environment and highly desirable for ultrasensitive biochemical sensing. In this work, a novel design of…

Optics · Physics 2017-11-15 Shuyuan Xiao , Tao Wang , Yuebo Liu , Xu Han , Xicheng Yan

Ongoing effort has been devoted to applying metamaterials to boost the imaging performance of magnetic resonance imaging owing to their unique capacity for electromagnetic field confinement and enhancement. However, there are still major…

Medical Physics · Physics 2023-10-03 Ke Wu , Xia Zhu , Xiaoguang Zhao , Stephan W. Anderson , Xin Zhang

Cooperative interactions among sensory receptors provide a general mechanism to increase the sensitivity of signal transduction. In particular, bacterial chemotaxis receptors interact cooperatively to produce an ultrasensitive response to…

Molecular Networks · Quantitative Biology 2011-10-19 Monica Skoge , Yigal Meir , Ned S. Wingreen