Electrostatic Charge Decay for Detecting Contamination on Aluminum Surfaces

The Effect of Relative Humidity on Electrostatic Charge Decay of Drugs and Excipient Used in Dry Powder Inhaler Formulation

Drug Development and Industrial Pharmacy ◽

10.1080/03639040601134207 ◽

2007 ◽

Vol 33 (9) ◽

pp. 967-974 ◽

Cited By ~ 26

Author(s):

Abdulmajid Elajnaf ◽

Paul Carter ◽

Geoff Rowley

Keyword(s):

Relative Humidity ◽

Dry Powder Inhaler ◽

Electrostatic Charge ◽

Dry Powder ◽

Charge Decay

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Estimating ESD Properties of Fabrics Based on Correlation between Dielectric Losses and Charge Decay Time

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.837.688 ◽

2013 ◽

Vol 837 ◽

pp. 688-693 ◽

Cited By ~ 1

Author(s):

Codrin Donciu

Keyword(s):

Decay Time ◽

Dielectric Spectroscopy ◽

Electrostatic Charge ◽

Current Paper ◽

Dielectric Losses ◽

Electrostatic Discharges ◽

Charge Decay ◽

Human Operators ◽

Tan Δ

ESD garments are used to protect sensitive devices from electrostatic discharges that can occur from the normal clothing of the human operators. Over the years, researchers implemented different structures of fabrics that can be used in ESD garments and studied their ESD properties using different methods. The current paper presents the possibility to use the information obtained from dielectric spectroscopy in order to evaluate the fabrics electrostatic charge decay time and investigates the presence of a correlation between the losses factor tan (δ) and the electrostatic charge decay time.

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Electrostatic charge decay and filtration performance of nonwoven filters in the vicinity of grounded metal grids

Journal of Electrostatics ◽

10.1016/j.elstat.2021.103554 ◽

2021 ◽

Vol 110 ◽

pp. 103554

Author(s):

Fethi Mohammed Bekkara ◽

Youcef Benmimoun ◽

Amel Kheiter ◽

Amine Chelih ◽

Amar Tilmatine

Keyword(s):

Electrostatic Charge ◽

Filtration Performance ◽

Charge Decay

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Measurement of Electrostatic Charge Decay in Pharmaceutical Powders and Polymer Materials Used in Dry Powder Inhaler Devices

Drug Development and Industrial Pharmacy ◽

10.3109/03639049809089953 ◽

1998 ◽

Vol 24 (11) ◽

pp. 1083-1088 ◽

Cited By ~ 25

Author(s):

P. A. Carter ◽

G. Rowley ◽

E. J. Fletcher ◽

V. Stylianopoulos

Keyword(s):

Dry Powder Inhaler ◽

Electrostatic Charge ◽

Polymer Materials ◽

Pharmaceutical Powders ◽

Dry Powder ◽

Charge Decay ◽

Materials Used ◽

Inhaler Devices

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Problems with oxygen analysis in the system MgO-Al2O3-SiO2 with the electron microprobe

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100132753 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1624-1625

Author(s):

Michel Fialin ◽

Guy Rémond

Keyword(s):

Transition Metal ◽

Metal Oxides ◽

Transition Metal Oxides ◽

Electrostatic Charge ◽

Carbon Layer ◽

Sample Holder ◽

Rock Matrix ◽

Electrical Discharges ◽

Thin Carbon ◽

Beam Instabilities

Oxygen-bearing minerals are generally strong insulators (e.g. silicates), or if not (e.g. transition metal oxides), they are included within a rock matrix which electrically isolates them from the sample holder contacts. In this respect, a thin carbon layer (150 Å in our laboratory) is evaporated on the sections in order to restore the conductivity. For silicates, overestimated oxygen concentrations are usually noted when transition metal oxides are used as standards. These trends corroborate the results of Bastin and Heijligers on MgO, Al2O3 and SiO2. According to our experiments, these errors are independent of the accelerating voltage used (fig.l).Owing to the low density of preexisting defects within the Al2O3 single-crystal, no significant charge buildup occurs under irradiation at low accelerating voltage (< 10keV). As a consequence, neither beam instabilities, due to electrical discharges within the excited volume, nor losses of energy for beam electrons before striking the sample, due to the presence of the electrostatic charge-induced potential, are noted : measurements from both coated and uncoated samples give comparable results which demonstrates that the carbon coating is not the cause of the observed errors.

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Lectin-Induced RBC Agglutination: Chemical vs. Cryofixation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600002920 ◽

1980 ◽

Vol 38 ◽

pp. 664-665

Author(s):

Dean A. Handley ◽

Lanping A. Sung ◽

Shu Chien

Keyword(s):

Lectin Binding ◽

Freeze Substitution ◽

Electrostatic Charge ◽

Geometric Parameters ◽

Comparative Approach ◽

Chemical Fixation ◽

Cell Surfaces ◽

Minimal Cell ◽

Membrane Stiffness ◽

Cell Contour

RBC agglutination by lectins represents an interactive balance between the attractive (bridging) force due to lectin binding on cell surfaces and disaggregating forces, such as membrane stiffness and electrostatic charge repulsion (1). During agglutination, critical geometric parameters of cell contour and intercellular distance reflect the magnitude of these interactive forces and the size of the bridging macromolecule (2). Valid ultrastructural measurements of these geometric parameters from agglutinated RBC's require preservation with minimal cell distortion. As chemical fixation may adversely influence RBC geometric properties (3), we used chemical fixation and cryofixation (rapid freezing followed by freeze-substitution) as a comparative approach to examine these parameters from RBC agglutinated with Ulex I lectin.

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