0000000000519346

AUTHOR

Yu Zhu

showing 3 related works from this author

Generalized Noise Study of Solid-State Nanopores at Low Frequencies.

2017

Nanopore technology has been extensively investigated for analysis of biomolecules, and a success story in this field concerns DNA sequencing using a nanopore chip featuring an array of hundreds of biological nanopores (BioNs). Solid-state nanopores (SSNs) have been explored to attain longer lifetime and higher integration density than what BioNs can offer, but SSNs are generally considered to generate higher noise whose origin remains to be confirmed. Here, we systematically study low-frequency (including thermal and flicker) noise characteristics of SSNs measuring 7 to 200 nm in diameter drilled through a 20-nm-thick SiNx membrane by focused ion milling. Both bulk and surface ionic curren…

noiseta221Analytical chemistryIonic bondingBioengineering02 engineering and technologyElectrolyte010402 general chemistry01 natural sciencesNoise (electronics)Flicker noiseInstrumentationFluid Flow and Transfer Processesta114ChemistryProcess Chemistry and TechnologyFlicker021001 nanoscience & nanotechnology0104 chemical sciencesNanoporenanopore technologyChemical physicssolid-state nanoporesIon milling machine0210 nano-technologyVoltageACS sensors
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Crystal structure of hydrocortisone 17-butyrate

2014

In the title compound, C25H36O6, the two central cyclohexane rings exhibit a chair conformation. The terminal cyclohexene and cyclopentane rings are in half-chair and envelope conformations (with the C atom bearing the methyl substituent as the flap), respectively. The methyl group of the butyrate chain is disordered over two orientations, with a refined occupancy ratio of 0.742 (6):0.258 (6). Intramolecular O—H...O and C—H...O hydrogen bonds are observed. In the crystal, molecules are linked by O—H...O hydrogen bonds into chains running parallel to theaaxis.

inorganic chemicalscrystal structureCrystallographyHydrogen bondCyclohexane conformationeducationGeneral ChemistryButyrateCrystal structureCondensed Matter PhysicsBioinformaticsData ReportshumanitiesCrystalchemistry.chemical_compoundCrystallographychemistryQD901-999Atomhydrogen bondshydro­cortisone derivativehydrocortisone derivativeGeneral Materials Sciencepharmacological activityMethyl groupActa Crystallographica Section E
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A generalized noise study of solid-state nanopores at low frequencies

2017

Nanopore technology has been extensively investigated for analysis of biomolecules, and a success story in this field concerns DNA sequencing using a nanopore chip featuring an array of hundreds of biological nanopores (BioNs). Solid-state nanopores (SSNs) have been explored to attain longer lifetime and higher integration density than what BioNs can offer, but SSNs are generally considered to generate higher noise whose origin remains to be confirmed. Here, we systematically study low-frequency (including thermal and flicker) noise characteristics of SSNs measuring 7 to 200 nm in diameter drilled through a 20-nm-thick SiNx membrane by focused ion milling. Both bulk and surface ionic curren…

nanopore technologysolid-state nanoporesmelu
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