Results 81 to 90 of about 11,033,420 (264)

Demo 22-11 Critical Angle /Total Internal Reflection

, 2001
A collimated beam of light originating within a tank of water leaves the water from the top surface, as shown in Figure 1. As the angle at which the light strikes the water surface becomes more oblique, the angle of the refracted ray leaving the water ...

core  

Metal–Organic Framework‐Preserved Thermostable Microneedle Patch for Minimally Invasive Detection and Monitoring of Kidney Dysfunction

Advanced Materials, EarlyView.
By growing a conformal ZIF‐8 protective layer directly on antibody‐functionalized microneedles, this work converts a fragile biosensing interface into a thermostable diagnostic platform. The MOF@MN patch enables minimally invasive NGAL detection from dermal ISF while supporting cold‐chain‐independent storage and transport for decentralized kidney ...
Yixuan Wang, Ying Liu, Avishek Debnath, Chuang Li, Zheyu Wang, Gayathri Kondepati, Saketh Balmoori, Jeremiah J. Morrissey, Ying Maggie Chen, Limei Tian, Srikanth Singamaneni   +10 more
wiley   +1 more source

Analytical characterization of artists' pigments used in old and modern paintings by total-reflection X-ray fluorescence

, 1993
The analytical characterization of artists' pigments is a most helpful tool for art history, conservation and restoration of paintings. A very gentle method of ultra-microsampling was developed that is especially applicable to paintings under restoration.
Moens, LucWE068010003635060000-0001-7486-255XF3DDEFB8-F0ED-11E1-A9DE-61C894A0A6B4, Devos, Wim8010008824547047B68E-B25E-11E6-B104-2D2FD0AF0289, von Bohlen, Alex, Devos, Wim, R. Klockenämper, A. von Bohlen, Klockenkämper, Reinhold, W. Devos, Moens, Luc, L. Moens   +9 more
core   +1 more source

Wavefront shaping of a Bessel light field enhances light sheet microscopy with scattered light [PDF]

, 2014
The project was supported by the UK Engineering and Physical Sciences Research Council, RS MacDonald Charitable Trust, SULSA, and the St. Andrews 600th anniversary BRAINS appeal. K. D.
Vettenburg, T.; id_orcid, J. Nylk, K. Dholakia, Nylk, J., C. Mitchell, Vettenburg, T., Gunn-Moore, F. J., T. Vettenburg, Mitchell, C., Dholakia, K., Nylk, J.; id_orcid, F. J. Gunn-Moore   +11 more
core   +1 more source

Sustainable Poly(Lactic Acid)/Graphene Oxide Bioelectronic Platform for Neurotransmitters Sensing and Tunable Stimulation of Astrocytes

Advanced Materials, EarlyView.
This work introduces sustainable PLA/graphene oxide bioelectronic interfaces featuring electrodes with tunable conductivity and strong electrocatalytic performance. These platforms were used to implement a new method for tuning astrocyte Ca2+ signaling and for the efficient detection of key biomarkers.
Alessandra Scidà, Giulia Cazzador, Roberta Fabbri, Matteo Calosi, Alessandro Silvestri, Andrea Candini, Fabiola Liscio, Franco Corticelli, Aikaterini Konstantoulaki, Andrea D'Iorio, Marco Caprini, Vincenzo Palermo, Monica Bertoldo, Valentina Benfenati, Chiara Zanardi, Emanuele Treossi   +15 more
wiley   +1 more source

Hyperbolic polariton-coupled emission optical microscopy

Nanophotonics
A new type of optical microscopy based on hyperbolic polariton-coupled emission (HPCE) is demonstrated. By employing hyperbolic metamaterials as the substrate, we show a nearly 6-fold increase in fluorescence intensity in the HPCE microscope compared to ...
Li Shilong, Liu Zhaowei, Lee Yeon Ui
doaj   +1 more source

Direct Visualization and Quantification of the Actin Nucleation and Elongation Events in vitro by TIRF Microscopy

Bio-Protocol, 2017
Total internal reflection fluorescence (TIRF) microscopy is a powerful tool for visualizing the dynamics of actin filaments at single-filament resolution in vitro.
Yuxiang Jiang, Shanjin Huang
doaj   +1 more source

Total internal reflection fluorescence microscopy for characterizing biochemical interactions [PDF]

, 2009
Total internal reflection fluorescence (TIRF) microscopy is a widely used technique for the study of biologically relevant processes both in vitro and in vivo.
Steele, Bridgett L.
core   +1 more source

All‐Amyloid Functional Coacervates

Advanced Materials, EarlyView.
This study introduces an all‐amyloid interfacial complex coacervate technique that employs charge‐mediated or functionalization‐assisted complexation of oppositely charged food protein‐derived amyloid nanofibrils to engineer functional soft constructs across multiple length scales.
Seyyed Alireza Hashemi, Mohammad Peydayesh, Laura Baraldi, Mohammad Arjmand, Raffaele Mezzenga   +4 more
wiley   +1 more source

Image processing in total internal reflection fluorescence microscopy

Journal of Physics: Conference Series, 2019
The paper presents a method for recording fluorescent images of single molecules using the total internal reflection fluorescence microscopy. This method allows determining the location of a molecule with subdiffraction accuracy and a high signal-to-noise ratio of the detected radiation.
O B Kuznetsova, E A Savchenko, A A Andryakov, E Y Savchenko, Z A Musakulova   +4 more
openaire   +1 more source