Nondestructive characterization of the properties of thin diaphragms

Mal, Ajit; Zheng, Dawei; Tu, King‐Ning; Wang, X.; Korkmaz, Yasemin

doi:10.1117/12.434175

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lateral dimension of the windows used in the study is only 100 x 15 µm in order to reduce the bulging of the windows in 8 vacuum. [4][5][6][7] Figure S3 shows the schematic illustration of the liquid cell before assembly and the sample preparation procedure. We previously reported the potential of using a nanofluidic cell with controllable path length for imaging with electrons.…”

Section: ) Nanofabrication Of the Liquid Static Cell And Tem Measurementsmentioning

confidence: 99%

Visualization of Multimerization and Self-Assembly of DNA-Functionalized Gold Nanoparticles Using In-Liquid Transmission Electron Microscopy

Keskin

Besztejan

Kassier

et al. 2015

J. Phys. Chem. Lett.

View full text Add to dashboard Cite

Base-pairing stability in DNA-gold nanoparticle (DNA-AuNP) multimers along with their dynamics under different electron beam intensities was investigated with in-liquid transmission electron microscopy (in-liquid TEM). Multimer formation was triggered by hybridization of DNA oligonucleotides to another DNA strand (Hyb-DNA) related to the concept of DNA origami. We analyzed the degree of multimer formation for a number of samples and a series of control samples to determine the specificity of the multimerization during the TEM imaging. DNA-AuNPs with Hyb-DNA showed an interactive motion and assembly into 1D structures once the electron beam intensity exceeds a threshold value. This behavior was in contrast with control studies with noncomplementary DNA linkers where statistically significantly reduced multimerization was observed and for suspensions of citrate-stabilized AuNPs without DNA, where we did not observe any significant motion or aggregation. These findings indicate that DNA base-pairing interactions are the driving force for multimerization and suggest a high stability of the DNA base pairing even under electron exposure.

show abstract

Section: ) Nanofabrication Of the Liquid Static Cell And Tem Measurementsmentioning

confidence: 99%