Potential transducing properties of microelectrodes filled with electrolyte or metal.
نویسندگان
چکیده
NAMi die von uns präparativ durchgeführte Ab lösung der ribosomalen Ferritinfraktion, die nach den Gradientenbildern1 im Mittel mit 7 0 S sedimentiert, 10 Jahre früher erstmals im analytischen Maßstab gelungen ist. Die für die Nucleoprotein-Komponente mit 49 S bestimmte Sedimentations-Konstante 21 entspricht der Ferritin-freien größeren ribosomalen Untereinheit, von uns mit 47 S angegeben1, während die nach Ferritinablösung in kleinere Partikel von 8 S 1 zerfallende kleine ribosomale Untereinheit von T a k a n a m i unbeachtet blieb, obwohl die Aufnahme seines Sedimentationslaufes21 deutlich eine start nahe, jedoch nicht ausgemessene Bande erkennen läßt.
منابع مشابه
Toward the ultimate metal microelectrode.
The performance of metal microelectrodes for stimulating and recording neuronal action potentials depends on precise control of their geometrical, electrical and mechanical properties. We describe a combination of materials whose properties approach fundamental physical limitations on achievable performance and reproducible fabrication techniques that provide probes with very small dimensions. ...
متن کاملOn-chip metal/polypyrrole quasi-reference electrodes for robust ISFET operation.
To operate an ion-sensitive field-effect transistor (ISFETs) it is necessary to set the electrolyte potential using a reference electrode. Conventional reference electrodes are bulky, fragile, and too big for applications where the electrolyte volume is small. Several researchers have proposed tackling this issue using a solid-state planar micro-reference electrode or a reference field-effect t...
متن کاملTraveling-wave electrokinetic micropumps: velocity, electrical current, and impedance measurements.
An array of microelectrodes covered in an electrolyte and energized by a traveling-wave potential produces net movement of the fluid. Arrays of platinum microelectrodes of two different characteristic sizes have been studied. For both sizes of arrays, at low voltages (<2 V pp) the electrolyte flow is in qualitative agreement with the linear theory of ac electroosmosis. At voltages above a thres...
متن کاملIncorporation of the electrode-electrolyte interface into finite-element models of metal microelectrodes.
An accurate description of the electrode-electrolyte interfacial impedance is critical to the development of computational models of neural recording and stimulation that aim to improve understanding of neuro-electric interfaces and to expedite electrode design. This work examines the effect that the electrode-electrolyte interfacial impedance has upon the solutions generated from time-harmonic...
متن کاملImproving the Performance of the Sandwich Panel with the Corrugated Core Filled with Metal Foam: Mathematical and Numerical Methods
A new type of composite structure with a metal foam is reinforced by the metal corrugated core, called metal-foam-filled sandwich panel with a corrugated or V-frame core, is modelled, simulated, and studied in this article. All types of samples with different relative densities of the foam are tested and analyzed under the drop hammer load. The sandwich panel included two aluminium face-sheet, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete
دوره 25 1 شماره
صفحات -
تاریخ انتشار 1970