Abstract: The invention relates to a device for sensing a microwave magnetic field polarization component (B?, B?, B+,) of a microwave relative to a static magnetic field B0, comprising: a preparation means being designed to prepare an atomic vapor (10) comprising a plurality of thermal atoms in a first hyperfine state, particularly a dark state to applied laser light, which first hyperfine state is split from at least one other hyperfine state due to the zero-field hyperfine splitting and/or due to a static magnetic field (B0) generated by said preparation means, at least one cell (1) enclosing said plurality of thermal atoms (10), wherein said microwave is adapted to drive Rabi oscillations of said plurality of thermal atoms between said first hyperfine state and a second hyperfine state, the Rabi frequency of said Rabi oscillations being proportional to said magnetic field polarization component (B?, B?, B+) of said microwave, and an imaging means being designed to capture a state image of said plurality of atoms re
Type:
Application
Filed:
March 23, 2013
Publication date:
February 19, 2015
Applicant:
UNIVERSITAT BASEL
Inventors:
Pascal Bohi, Max F. Riedel, Theodor W. Hansch, Philipp Treutlein
Abstract: The present invention relates to a method for controlling a scanning probe microscope having a probe (2) with a tip (21) for interacting with a sample (4), and a nanoscanner (1) for retaining the sample (4) or the probe (2), comprising the steps of monitoring the extension of the piezo element (1) along a first direction (R) along which the tip (21) is moved towards the sample (4), and adjusting the level of the probe (2) along the first direction (R) by means of an additional actuator (3), when the nanoscanner (1) exhibits an extension below or above a threshold value. The invention further relates to a device (100) for controlling a scanning probe microscope.
Type:
Application
Filed:
December 12, 2012
Publication date:
November 13, 2014
Applicant:
UNIVERSITAT BASEL
Inventors:
Marija Plodinec, Marko Loparic, Roderick YH Lim
Abstract: The present invention relates to a method for classifying a tissue biopsy sample obtained from a tumor, comprising determining a plurality of stiffness values for said sample by measuring a plurality of points on the sample with a spatial resolution of at least 100 ?m and assigning the sample to a probability of malignancy. A sample showing a unimodal stiffness distribution is assigned to a high probability of being non-malignant, and a sample showing an at least bimodal stiffness distribution is assigned to a high probability of being malignant, wherein said stiffness distribution is characterized by a first peak exhibiting an at least two-fold higher stiffness value than a second peak. The present invention further relates to a system for classifying a tumor tissue biopsy sample.
Type:
Grant
Filed:
December 12, 2011
Date of Patent:
June 17, 2014
Assignee:
Universitat Basel
Inventors:
Marija Plodinec, Roderick Lim, Marko Loparic
Abstract: The present invention relates to a method for classifying a tissue biopsy sample obtained from a tumour, comprising determining a plurality of stiffness values for said sample by measuring a plurality of points on the sample with a spatial resolution of at least 100 ?m and assigning the sample to a probability of malignancy. A sample showing a unimodal stiffness distribution is assigned to a high probability of being non-malignant, and a sample showing an at least bimodal stiffness distribution is assigned to a high probability of being malignant, wherein said stiffness distribution is characterized by a first peak exhibiting an at least two-fold higher stiffness value than a second peak. The present invention further relates to a system for classifying a tumour tissue biopsy sample.
Type:
Application
Filed:
December 12, 2011
Publication date:
January 2, 2014
Applicant:
UNIVERSITAT BASEL
Inventors:
Marija Plodinec, Roderick Lim, Marko Loparic
Abstract: Sensor system (70) for detecting a target substance in a reference liquid, comprising a measurement cantilever (71) being functionalized by application of a first coating to one of the measurement cantilever's surfaces, whereby this first coating is sensitive to the target substance. In addition, the system (70) comprises a reference cantilever (72) with a reference coating on one of the reference cantilever's surfaces, whereby this reference coating is less sensitive to the target substance than the first coating. Both cantilevers are arranged such that they can be exposed in a reference step to the reference liquid and in a detection step to the reference liquid with the target substance. A detector unit (73, 74, 83) is employed for determining the difference in the deflection of the measurement cantilever (71) and the reference cantilever (72) during the reference step and the detection step.
Type:
Grant
Filed:
October 16, 2000
Date of Patent:
July 14, 2009
Assignees:
International Business Machines Corporation, Universitat Basel
Inventors:
Marko K. Baller, Juergen Fritz, Christoph Gerber, James Gimzewski, Hans Peter Lang
Abstract: The present invention relates to the fast detection of microorganisms, i.e. of bacteria, fungi, cells and other organisms, making use of methods and apparatuses coming from nanotechnology. According to the present invention, such organisms are detected using micromechanical sensor means known from many physical and chemical applications. One or more micromechanical cantilever sensors are either coated with a nutritive medium or at least partially built from a nutritive medium. By depositing a microorganism on the cantilever surface, preferably in a targeted way and in a controlled dosage, a “biological reaction” is started. This reaction results in a change of the mechanical and/or electrical properties of the sensor, i.e. the cantilever. These changes are determined, preferably at certain points in time, and thus allow the detection and detailed observation of the applied microorganism.
Type:
Grant
Filed:
February 26, 2003
Date of Patent:
October 31, 2006
Assignee:
Universitat Basel
Inventors:
Urs Christian Hubler, Felice Mauro Battiston, Bianca Antje Hermann