Two-Dimensional Ordered Arrays of Aligned Lipid Tubules on Substrates with Microfluidic Networks

Langmuir ◽  
2005 ◽  
Vol 21 (7) ◽  
pp. 3153-3157 ◽  
Author(s):  
Nidhi Mahajan ◽  
Jiyu Fang
2006 ◽  
Vol 922 ◽  
Author(s):  
Yue Zhao ◽  
Nidhi Mahajan ◽  
Jiyu Fang

AbstractThe rolling of lipid bilayer sheets into hollow cylindrical tubules have emerged as a group of interesting supramolecular nanostructures. Here, we image the self-assembled tubules of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphochloline (DC8,9PC) with atomic force microscopy. Nanoscale ripple structures with a periodicity of ~ 200nm in the cylindrical lipid tubules are observed. We develop two simple methods based on microfluidic networks and surface patterning to produce two dimensional ordered arrays of parallel aligned lipid tubules on substrates.


2010 ◽  
Vol 247 ◽  
pp. 012033 ◽  
Author(s):  
A P Chumakov ◽  
S V Grigoriev ◽  
N A Grigoryeva ◽  
K S Napolskii ◽  
I V Roslyakov ◽  
...  

2019 ◽  
Vol 53 (10) ◽  
pp. 1329-1333 ◽  
Author(s):  
Zn. V. Smagina ◽  
V. A. Zinovyev ◽  
E. E. Rodyakina ◽  
B. I. Fomin ◽  
M. V. Stepikhova ◽  
...  

Author(s):  
James A. Lake ◽  
Henry S. Slayter

Cysts of Entamoeba Invadens contain large ordered arrays of closely packed helices which absorb strongly in the ultraviolet. The helices consist of small, approximately spherical particles about 250Å in diameter. Several lines of evidence have indicated that they may be ribosomes. We shall refer to these particles as ribosomes in this paper.DeRosier and Klug (1) have demonstrated that it is possible to reconstruct a three dimensional object from two dimensional projected images, i.e. micrographs, provided that sufficient views, of individual molecules are available. A single view (micrograph) of one ribosomal helix provides many views of individual ribosomes.


2009 ◽  
Vol 08 (01n02) ◽  
pp. 119-122
Author(s):  
LI ZHANG ◽  
HUA-YAN SI ◽  
HUA XU ◽  
HAO-LI ZHANG ◽  
YU-QING XIONG

Highly ordered arrays consisting uniform fluorescent cadmium selenide ( CdSe ) quantum dots (QDs) ring or dot structures were obtained by self-assembly of QDs on chemically patterned substrates. In this method, Au substrates with alternating hydrophobic and hydrophilic square patterns are firstly fabricated by microcontact printing, which allows water droplets to condense on the hydrophilic regions to provide two-dimensional template arrays. The CdSe QDs are then assembled at the liquid/liquid interfaces to give uniform micro or nanostructures. The shape and size of the rings and dots can be tailored by controlling the relative evaporation speed of the water and the organic solvents. The obtained nanostructures have ideal topography to avoid substrate-induced fluorescence quenching.


2007 ◽  
Vol 43 (1) ◽  
pp. 243-248 ◽  
Author(s):  
Takashi Morinaga ◽  
Kohji Ohno ◽  
Yoshinobu Tsujii ◽  
Takeshi Fukuda

2016 ◽  
Vol 8 (25) ◽  
pp. 16404-16411 ◽  
Author(s):  
Xue Han ◽  
Jing Hou ◽  
Jixun Xie ◽  
Jian Yin ◽  
Yi Tong ◽  
...  

1996 ◽  
Vol 315 (2) ◽  
pp. 543-547 ◽  
Author(s):  
William V. NICHOLSON ◽  
Fiona H. SHEPHERD ◽  
Mark F. ROSENBERG ◽  
Robert C. FORD ◽  
Andreas HOLZENBURG

1. Electron microscopy of solubilized photosystem II (PSII) complexes and PSII in spinach thylakoid membranes has been carried out and the results have been compared with data obtained from ordered two-dimensional arrays of PSII. Membrane-bound PSII is roughly rectangular (17.6 nm× 14.1 nm) with a central stain cavity surrounded by four major lumenal domains. A comparison between the averaged projections of single (non-ordered) particles at 3.8 nm resolution and the Fourier projection maps obtained from ordered arrays (at 2–3 nm resolution) reveals close similarity and excludes the possibility that PSII observed in two-dimensional ordered arrays represents an unusual subpopulation. 2. After detergent solubilization, PSII adopts various aggregation states which were analysed by electron microscopy in conjunction with single-particle averaging. Two different types of projection of roughly rectangular shape and of dimensions 30 nm×17 nm manifesting themselves as tetrameric sandwich structures have been revealed. This conclusion is supported by the presence of at least two axes of 2-fold rotational symmetry running perpendicular to each other and intersecting at the centre of the oligomer. Comparisons of the structures of detergent-solubilized and native PSII show that the oligomerization of PSII can be artificially induced by the process of membrane solubilization.


Langmuir ◽  
2006 ◽  
Vol 22 (14) ◽  
pp. 6056-6059 ◽  
Author(s):  
Joe Otsuki ◽  
Seiichi Shimizu ◽  
Mizuho Fumino

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