In situ electron microscopy of the self-assembly of single-stranded DNA-functionalized Au nanoparticles in aqueous solution

Nanoscale ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 34-44 ◽  
Author(s):  
Eli Sutter ◽  
Bo Zhang ◽  
Stephan Sutter ◽  
Peter Sutter
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
The Self ◽  
Single Stranded Dna ◽  
In Situ Electron Microscopy ◽  
Liquid Cell

In situ liquid cell electron microscopy of the pH-driven assembly of single stranded DNA-functionalized Au nanoparticles in aqueous solution.

Radiation damage during in situ electron microscopy of DNA-mediated nanoparticle assemblies in solution

Nanoscale ◽  
2018 ◽  
Vol 10 (26) ◽  
pp. 12674-12682 ◽  
Author(s):  
Peter Sutter ◽  
Bo Zhang ◽  
Eli Sutter
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Radiation Damage ◽  
Self Assembly ◽  
The Self ◽  
Nanoparticle Assemblies ◽  
In Situ Electron Microscopy ◽  
Imaging Conditions ◽  
The Way

In situ electron microscopy in liquids is used to establish radiation damage pathways and damage-free imaging conditions for superlattices of oligonucleotide–nanoparticle conjugates, paving the way for imaging the self-assembly of such programmable atom equivalents in aqueous solution.

scholarly journals Fabrication of a liquid cell for in situ transmission electron microscopy

Microscopy ◽  
2020 ◽  
Author(s):  
Xiaoguang Li ◽  
Kazutaka Mitsuishi ◽  
Masaki Takeguchi
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Cost Effective ◽  
Production Method ◽  
Microscopy Imaging ◽  
Transmission Electron ◽  
In Situ Electron Microscopy ◽  
Liquid Cell ◽  
Si Wafer

Abstract Liquid cell transmission electron microscopy (LCTEM) enables imaging of dynamic processes in liquid with high spatial and temporal resolution. The widely used liquid cell (LC) consists of two stacking microchips with a thin wet sample sandwiched between them. The vertically overlapped electron-transparent membrane windows on the microchips provide passage for the electron beam. However, microchips with imprecise dimensions usually cause poor alignment of the windows and difficulty in acquiring high-quality images. In this study, we developed a new and efficient microchip fabrication process for LCTEM with a large viewing area (180 µm × 40 µm) and evaluated the resultant LC. The new positioning reference marks on the surface of the Si wafer dramatically improve the precision of dicing the wafer, making it possible to accurately align the windows on two stacking microchips. The precise alignment led to a liquid thickness of 125.6 nm close to the edge of the viewing area. The performance of our LC was demonstrated by in situ transmission electron microscopy imaging of the dynamic motions of 2-nm Pt particles. This versatile and cost-effective microchip production method can be used to fabricate other types of microchips for in situ electron microscopy.

Retracted Article: Dynamic Adsorption Self-assembly of Au nanocube (NC) for opposite charge Au nanoparticles (NPs) in real time

2020 ◽  
Author(s):  
Chang Li ◽  
Ke Zhang ◽  
Jin-Song Hu
Keyword(s):  
Kinetic Energy ◽  
Dynamic Process ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Dynamic Adsorption ◽  
Opposite Charge ◽  
Retracted Article ◽  
Liquid Cell ◽  
Trimer Formation

Using in situ liquid cell TEM imaging, the dynamic process of dimer and trimer formation were captured. The kinetic energy of NPs and the NC- Electrostatic Shielding Length (NC-ESL) are...

Liquid Cell in-situ Electron Microscopy: Interfacial Phenomena and Electrochemical Deposition

2012 ◽  
Vol 18 (S2) ◽  
pp. 1160-1161
Author(s):  
J.M. Grogan ◽  
H.H. Bau ◽  
J. Park ◽  
X. Ye ◽  
C.B. Murray ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electrochemical Deposition ◽  
Interfacial Phenomena ◽  
In Situ Electron Microscopy ◽  
Liquid Cell

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

scholarly journals Observing the Self-assembly of Metal-Organic Frameworks by In-Situ Liquid Cell TEM

2015 ◽  
Vol 21 (S3) ◽  
pp. 2445-2446
Author(s):  
Joseph P. Patterson ◽  
Patricia Abellan ◽  
Mike S. Denny ◽  
Chiwoo Park ◽  
Nigel D. Browning ◽  
...  
Keyword(s):  
Self Assembly ◽  
Metal Organic Frameworks ◽  
The Self ◽  
Metal Organic ◽  
Liquid Cell

Poly(diallyldimethylammonium chloride)–cellulose nanocrystals supported Au nanoparticles for nonenzymatic glucose sensing

RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6436-6442 ◽  
Author(s):  
Lili Dong ◽  
Xiuqiang Zhang ◽  
Suxia Ren ◽  
Tingzhou Lei ◽  
Xiuxuan Sun ◽  
...  
Keyword(s):  
Cellulose Nanocrystals ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Glucose Sensing ◽  
The Self ◽  
Au Nps ◽  
Diallyldimethylammonium Chloride ◽  
Positively Charged

PDDA–CNCs supported Au nanohybrids, which were prepared by in-situ deposition of Au NPs, via the self-assembly between negative Au precursor and positively charged PDDA–CNCs, exhibited excellent electrochemical glucose sensing ability.

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