Time multiplexing super-resolution nanoscopy based on the Brownian motion of gold nanoparticles

2017 ◽  
Author(s):  
Tali Ilovitsh ◽  
Asaf Ilovitsh ◽  
Omer Wagner ◽  
Zeev Zalevsky
Keyword(s):  
Gold Nanoparticles ◽  
Brownian Motion ◽  
Super Resolution

Super-resolution plasmonic imaging via scattering saturation STED

2021 ◽  
Vol 57 (28) ◽  
pp. 3492-3495
Author(s):  
Zhaoshuai Gao ◽  
Pei Wu ◽  
Lixin Yin ◽  
Bin Kang ◽  
Hong-Yuan Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Spatial Resolution ◽  
Super Resolution ◽  
Plasmonic Imaging

Super-resolution plasmonic scattering imaging was realized with a 65 nm spatial resolution on 50 nm gold nanoparticles.

scholarly journals Super-Resolution Lensless Imaging of Cells Using Brownian Motion

2019 ◽  
Vol 9 (10) ◽  
pp. 2080
Author(s):  
Yuan Fang ◽  
Ningmei Yu ◽  
Yuquan Jiang
Keyword(s):  
Brownian Motion ◽  
Imaging System ◽  
Imaging Technique ◽  
Super Resolution ◽  
Image Sensor ◽  
Oxide Semiconductor ◽  
Objective Lens ◽  
Cell Detection ◽  
Lensless Imaging ◽  
Cell Image

The lensless imaging technique, which integrates a microscope into a complementary metal oxide semiconductor (CMOS) digital image sensor, has become increasingly important for the miniaturization of biological microscope and cell detection equipment. However, limited by the pixel size of the CMOS image sensor (CIS), the resolution of a cell image without optical amplification is low. This is also a key defect with the lensless imaging technique, which has been studied by a many scholars. In this manuscript, we propose a method to improve the resolution of the cell images using the Brownian motion of living cells in liquid. A two-step algorithm of motion estimation for image registration is proposed. Then, the raw holographic images are reconstructed using normalized convolution super-resolution algorithm. The result shows that the effect of the collected cell image under the lensless imaging system is close to the effect of a 10× objective lens.

scholarly journals Microsphere Assisted Super-resolution Optical Imaging of Plasmonic Interaction between Gold Nanoparticles

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Beibei Hou ◽  
Mengran Xie ◽  
Ruoyu He ◽  
Minbiao Ji ◽  
Sonja Trummer ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Imaging ◽  
Super Resolution

scholarly journals Modelling Colloidal Stability in Gold Nanoparticles Synthesis - A Review

2020 ◽  
pp. 59-69
Author(s):  
Babalola Faith U.
Keyword(s):  
Gold Nanoparticles ◽  
Brownian Motion ◽  
Colloidal Stability ◽  
Dlvo Theory ◽  
Electrostatic Energy ◽  
Aggregation Process ◽  
Colloidal Systems ◽  
Nanoparticles Synthesis ◽  
Electrostatic Effect ◽  
Energy Of Interaction

Nanoparticles are commonly synthesized in colloidal systems, a liquid with suspended macromolecules. By the Brownian motion, these particles can collide and aggregate, leading to larger particles. To stabilize the aggregation process, charges induced by ions cause repulsion among the particles. Through the works of researchers in the past, various models for describing particles aggregation and stabilization have been developed and modified. These models are based on the popular DLVO theory, named after Derjaguin, Landau, Verwey and Overbreek. In this work, evidence illustrating aggregation and stabilization in gold nanoparticles synthesis is reported. Thereafter, models for describing aggregation by the Brownian motion and stabilization by the electrostatic effect are reviewed. The electrostatic effect among the particles is mathematically expressed as the cumulative sum of the Van der Waal’s energy of interaction and the electrostatic energy of repulsion. As the resulting stabilization model is too complex to solve, past researchers reported a simplified stabilization submodel and employed it in describing gold nanoparticles synthesis. Unfortunately, as shown in this review, the submodel failed to describe the synthesis as the aggregation process never stopped, thus making a case for a new modelling approach.

Superresolved nanoscopy using Brownian motion of fluorescently labeled gold nanoparticles

2017 ◽  
Vol 56 (5) ◽  
pp. 1365 ◽  
Author(s):  
Tali Ilovitsh ◽  
Asaf Ilovitsh ◽  
Omer Wagner ◽  
Zeev Zalevsky
Keyword(s):  
Gold Nanoparticles ◽  
Brownian Motion

Super-resolution photoacoustic imaging of single gold nanoparticles

2016 ◽  
Author(s):  
Seunghyun Lee ◽  
Owoong Kwon ◽  
Mansik Jeon ◽  
Jaejung Song ◽  
Minguk Jo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Photoacoustic Imaging ◽  
Super Resolution

scholarly journals Super-resolution observation of lysosomal dynamics with fluorescent gold nanoparticles

Theranostics ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 6072-6081 ◽  
Author(s):  
Kangqiang Qiu ◽  
Yang Du ◽  
Jiyan Liu ◽  
Jun-Lin Guan ◽  
Hui Chao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Super Resolution ◽  
Resolution Observation
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