A Floating Mold Technique for the Programmed Assembly of Protocells into Protocellular Materials Capable of Non‐Equilibrium Biochemical Sensing

Advanced Materials ◽

10.1002/adma.202100340 ◽

2021 ◽

pp. 2100340

Author(s):

Agostino Galanti ◽

Rafael O. Moreno‐Tortolero ◽

Raihan Azad ◽

Stephen Cross ◽

Sean Davis ◽

...

Keyword(s):

Biochemical Sensing ◽

Programmed Assembly ◽

Non Equilibrium

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Protocellular Materials: A Floating Mold Technique for the Programmed Assembly of Protocells into Protocellular Materials Capable of Non‐Equilibrium Biochemical Sensing (Adv. Mater. 24/2021)

Advanced Materials ◽

10.1002/adma.202170185 ◽

2021 ◽

Vol 33 (24) ◽

pp. 2170185

Author(s):

Agostino Galanti ◽

Rafael O. Moreno‐Tortolero ◽

Raihan Azad ◽

Stephen Cross ◽

Sean Davis ◽

...

Keyword(s):

Biochemical Sensing ◽

Programmed Assembly ◽

Non Equilibrium

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Application of analytical electron microscopy to studies of equilibrium and non-equilibrium segregation in materials

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130705 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1214-1215

Author(s):

Edward A Kenik

Keyword(s):

Electron Microscopy ◽

Analytical Electron Microscopy ◽

Extended Defects ◽

Probe Diameter ◽

Specimen Holder ◽

Analytical Electron ◽

Scanning Transmission ◽

Solute Atoms ◽

Equilibrium Segregation ◽

Non Equilibrium

Segregation of solute atoms to grain boundaries, dislocations, and other extended defects can occur under thermal equilibrium or non-equilibrium conditions, such as quenching, irradiation, or precipitation. Generally, equilibrium segregation is narrow (near monolayer coverage at planar defects), whereas non-equilibrium segregation exhibits profiles of larger spatial extent, associated with diffusion of point defects or solute atoms. Analytical electron microscopy provides tools both to measure the segregation and to characterize the defect at which the segregation occurs. This is especially true of instruments that can achieve fine (<2 nm width), high current probes and as such, provide high spatial resolution analysis and characterization capability. Analysis was performed in a Philips EM400T/FEG operated in the scanning transmission mode with a probe diameter of <2 nm (FWTM). The instrument is equipped with EDAX 9100/70 energy dispersive X-ray spectrometry (EDXS) and Gatan 666 parallel detection electron energy loss spectrometry (PEELS) systems. A double-tilt, liquid-nitrogen-cooled specimen holder was employed for microanalysis in order to minimize contamination under the focussed spot.

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