scholarly journals Effect of Ag Nanocube Optomechanical Modes on Plasmonic Surface Lattice Resonances

ACS Photonics ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 3130-3140
Author(s):  
Mindaugas Juodėnas ◽  
Domantas Peckus ◽  
Tomas Tamulevičius ◽  
Yusuke Yamauchi ◽  
Sigitas Tamulevičius ◽  
...  
Keyword(s):  
Surface Lattice ◽  
Ag Nanocube

Observations of Frozen-Hydrated Microtubules

1990 ◽  
Vol 48 (1) ◽  
pp. 504-505
Author(s):  
D. Chrétien ◽  
D. Job ◽  
R.H. Wade
Keyword(s):  
Fourier Transforms ◽  
Structural Complexity ◽  
Image Contrast ◽  
Phase Behaviour ◽  
Experimental Conditions ◽  
Thin Sections ◽  
Surface Lattice ◽  
Cilia And Flagella ◽  
Outstanding Question

Microtubules are filamentary structures found in the cytoplasm of eukaryotic cells, where, together with actin and intermediate filaments, they form the components of the cytoskeleton. They have many functions and show various levels of structural complexity as witnessed by the singlet, doublet and triplet structures involved in the architecture of centrioles, basal bodies, cilia and flagella. The accepted microtubule model consists of a 25 nm diameter hollow tube with a wall made up of 13 paraxial protofilaments (pf). Each pf is a string of aligned tubulin dimers. Some results have suggested that the pfs follow a superhelix. To understand how microtubules function in the cell an accurate model of the surface lattice is one of the requirements. For example the 9x2 architecture of the axoneme will depend on the organisation of its component microtubules. We should also note that microtubules with different numbers of pfs have been observed in thin sections of cellular and of in-vitro material. An outstanding question is how does the surface lattice adjust to these different pf numbers?We have been using cryo-electron microscopy of frozen-hydrated samples to study in-vitro assembled microtubules. The experimental conditions are described in detail in this reference. The results obtained in conjunction with thin sections of similar specimens and with axoneme outer doublet fragments have already allowed us to characterise the image contrast of 13, 14 and 15 pf microtubules on the basis of the measured image widths, of the the image contrast symmetry and of the amplitude and phase behaviour along the equator in the computed Fourier transforms. The contrast variations along individual microtubule images can be interpreted in terms of the geometry of the microtubule surface lattice. We can extend these results and make some reasonable predictions about the probable surface lattices in the case of other pf numbers, see Table 1. Figure 1 shows observed images with which these predictions can be compared.

scholarly journals Nonvolatile and reconfigurable tuning of surface lattice resonances using phase-change Ge2Sb2Te5 thin films

2021 ◽  
Vol 22 ◽  
pp. 103897
Author(s):  
Xingzhe Shi ◽  
Changshui Chen ◽  
Songhao Liu ◽  
Guangyuan Li
Keyword(s):  
Thin Films ◽  
Phase Change ◽  
Surface Lattice

Multiple Conformational States of the Bacteriophage T4 Capsid Surface Lattice Induced When Expansion Occurs without Prior Cleavage

1997 ◽  
Vol 118 (1) ◽  
pp. 73-82 ◽  
Author(s):  
Eva Kocsis ◽  
Heather L. Greenstone ◽  
Emily G. Locke ◽  
Martin Kessel ◽  
Alasdair C. Steven
Keyword(s):  
Bacteriophage T4 ◽  
Conformational States ◽  
Surface Lattice

The co-adsorption of Cu2+ and Zn2+ with adsorption sites surface-lattice reforming on calcined layered double hydroxides

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28369-28378 ◽  
Author(s):  
Yuxin Xiao ◽  
Mingming Sun ◽  
Lin Zhang ◽  
Xue Gao ◽  
Jixin Su ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Co Adsorption ◽  
Adsorption Sites ◽  
Surface Lattice ◽  
Double Hydroxides

The picture shows that how the CLDHs recover into the hydrotalcite structure in the process of adsorption of Cu2+ and Zn2+.

Second Harmonic Spectroscopy of Surface Lattice Resonances

Nano Letters ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 165-172 ◽  
Author(s):  
David C. Hooper ◽  
Christian Kuppe ◽  
Danqing Wang ◽  
Weijia Wang ◽  
Jun Guan ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Surface Lattice

scholarly journals Diffracted Light Contrast: Improving the Resolution of a Basic Light Microscope by an Order of Magnitude

2006 ◽  
Vol 14 (6) ◽  
pp. 10-15
Author(s):  
W. Barry Piekos
Keyword(s):  
Epithelial Cells ◽  
Light Microscope ◽  
Depth Of Field ◽  
High Quality ◽  
Surface Lattice ◽  
Buccal Epithelial Cells ◽  
Order Of Magnitude ◽  
Student Laboratory ◽  
Light Contrast ◽  
Very High

The discovery that the diffracted light from a convex edge can be used to form a very high-quality, shadowcast image on any light microscope has led to a device and method, diffracted-light contrast (DLC), which will allow shadowcast imaging to be routinely performed on student/laboratory microscopes (Piekos, 1999, 2003). The surface lattice of Surirella gema was easily resolved, and micrographs comparing the subcellular details of buccal epithelial cells viewed with DLC vs. Nomarski DIC showed that, on the microscopes used, DLC was superior in both the detail it rendered and depth of field. Although the images presented revealed DLC to be an excellent technique, the full capabilities of the technique were not known at the time.

Nonlinear Surface Lattice Resonance in Plasmonic Nanoparticle Arrays

2017 ◽  
Vol 118 (24) ◽  
Author(s):  
Lior Michaeli ◽  
Shay Keren-Zur ◽  
Ori Avayu ◽  
Haim Suchowski ◽  
Tal Ellenbogen
Keyword(s):  
Nanoparticle Arrays ◽  
Plasmonic Nanoparticle ◽  
Surface Lattice ◽  
Nonlinear Surface
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