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Full-Text Articles in Life Sciences
Ion Trap Mass Analyzer Apparatus, Methods, And Systems Utilizing One Or More Multiple Potential Ion Guide (Mpig) Electrodes, Curtiss Dwight Hanson
Ion Trap Mass Analyzer Apparatus, Methods, And Systems Utilizing One Or More Multiple Potential Ion Guide (Mpig) Electrodes, Curtiss Dwight Hanson
Patents (University of Northern Iowa)
In one aspect of the invention, an ion trap mass analyzer includes a variable- or multi-potential type ion guide (MPIG) assembly which has been pre-configured to produce a parabolic-type potential field. Each MPIG electrode has a resistive coating of designed characteristics. In one example the coating varies in thickness along the length of an underlying uniform substrate. The MPIG assembly can be a single MPIG electrode or an array of a plurality of MPIG electrodes. An array can facilitate delocalization for improved performance. This chemical modification of a uniform underlying substrate promotes cheaper and flexible instruments. The modified MPIG electrodes …
Bacteriophages That Infect Bacillus Bacteria (Anthrax), Michael H. Walter
Bacteriophages That Infect Bacillus Bacteria (Anthrax), Michael H. Walter
Patents (University of Northern Iowa)
The invention provides bacteriophages that infect Bacillus bacteria, including Bacillus anthracis, and compositions containing the bacteriophages. The invention also provides methods for using the bacteriophages of the invention to prevent and treat infection of an organism by Bacillus bacteria. Methods and materials to decontaminate a surface or an organism that is contaminated with Bacillus bacteria or Bacillus spores is also provided.
Explore Variable Potential Ion Guide For Mass Spectrometry, Curtiss D. Hanson
Explore Variable Potential Ion Guide For Mass Spectrometry, Curtiss D. Hanson
Patents (University of Northern Iowa)
A variable potential ion guide for placement within the reflectron of a time-of-flight mass spectrometer includes an elongate resistive electrode placed axially within the reflectron. The electrode may be a non-conductive monofilament coated with a resistive polymer coating, with one end of the electrode coupled to a high potential source, the electrode carrying a potential gradient along its length.
Multi-Pass Reflectron Time-Of-Flight Mass Spectrometer, Curtiss D. Hanson
Multi-Pass Reflectron Time-Of-Flight Mass Spectrometer, Curtiss D. Hanson
Patents (University of Northern Iowa)
A novel design for a time-of-flight mass spectrometer capable of tandem mass spectrometry measurements with high resolution and high sensitivity using two variable reflectrons in a co-linear geometry. Variably switched reflectrons are oriented coaxially on opposing ends of the ion flight region allowing multiple passes of the ions along the flight region permitting high resolution, tandem mass spectrometry experiments to be performed. An electrostatic particle guide is incorporated to ensure high ion transmission efficiency in a multi-pass system. In addition to permitting the high transmission efficiency of ions, the EPG can be used in a bipolar pulsed mode to isolate …