Abstract: The invention relates to an indicator comprising a substrate and an optical grating structure fabricated on the substrate, the grating structure being formed from an indicator material comprising a binder and deliquescent salt and varying in volume by the effect of moisture. Further, the invention relates to a method for fabricating an indicator wherein a substrate is coated by an indicator material forming an optical grating structure, and the optical grating structure is fabricated onto the substrate, and use of an indicator for detecting quality and/or authenticity. Furthermore, the invention relates to a package and a method for detecting a change induced by moisture without breaking the package.
Abstract: Arrangement for use with a touchscreen, includes a substrate, such as an optically substantially transparent film or a film defining a through hole, the substrate including support electronics, such as printed electronics including a number of printed conductors, for providing power, control and/or communications connection to further electronic components, a number of emitters and detectors arranged on the substrate into contact with the support electronics, for emitting and detecting light, respectively, and a lightguide arranged onto the substrate such that the emitters and detectors, and optionally at least part of the support electronics, are substantially immersed in the lightguide material, the properties of the lightguide including the refractive index of the lightguide material being selected and the emitters and detectors being configured so as to enable, when in use, total internal reflection (TIR)-type propagation of light within the lightguide between the emitters and detectors and recognition of
Abstract: The invention relates to a dye composition comprising a dye, dye converter, binder, reducing agent, solvent and optionally basic agent. Further, the invention relates to a method for fabricating an oxygen indicator wherein a dye composition is applied over a substrate and reduced by heating, to an oxygen indicator fabricated by the method and to a package for detecting a leakage and/or variation in the oxygen content.
Abstract: The present invention is related to field of allergic (hypersensitivity) diseases and provides a method for producing modified allergenic polypeptides for use in immunotherapies. In the method of the invention, said allergenic polypeptides are modified so that they are not capable to form transient dimers. The invention also provides modified ?-lactoglobulins for use in immunotherapy of milk allergy.
Type:
Application
Filed:
June 18, 2009
Publication date:
May 5, 2011
Applicant:
TEKNOLOGIAN TUTKIMUSKESKUS VTT
Inventors:
Juha Rouvinen, Kristiina Takkinen, Merja Niemi, Sirpa Jylhä, Hans Söderlund, Marja-Leena Laukkanen
Abstract: A binding partner, especially an antibody fragment that specifically recognizes an antigen-antibody immune complex between anti-THC and THC (tetrahydrocannabinol), is disclosed. The binding partner facilitates a non-competitive homogenous immunoassay for detection of cannabis use. A test kit comprising the binding partner is also described. Preferably the immunoassay is applied for roadside testing of saliva from suspected drivers.
Type:
Application
Filed:
June 5, 2009
Publication date:
April 14, 2011
Applicant:
TEKNOLOGIAN TUTKIMUSKESKUS VTT
Inventors:
Kristiina Takkinen, Hans Söderlund, Timo Pulli
Abstract: The invention relates to the field of secondary metabolite production in plants and plant cell cultures. More specifically, the invention relates to the use of transporters and more particularly ABC-transporters to enhance the production and/or secretion of secondary metabolites in plants and plant cell cultures.
Type:
Grant
Filed:
September 18, 2003
Date of Patent:
November 24, 2009
Assignee:
VTT Biotechnology
Inventors:
Alain Goossens, Dirk Gustaaf Inze, Kirsi-Marja Oksman-Caldentey, Into J. Laakso
Abstract: The invention relates to fusion proteins including at least a swollenin and at least a plant cell-wall degrading enzyme, the swollenin, and plant cell-wall degrading enzyme, being recombinant proteins corresponding to native proteins in fungi, or mutated forms thereof. The invention also relates to the use of fusion proteins as defined above, for carrying out processes of plant cell-wall degradation in the frame of the preparation, from plants or vegetal by-products, of compounds of interest located in plant cell-wall, or in the frame of the bleaching of pulp and paper, or for biofuel production, or food industries.
Type:
Application
Filed:
April 2, 2007
Publication date:
September 3, 2009
Applicants:
Institut Francias Du Petrole, VTT Technical Research Centre of Finland, Institute National De La Recherche Agronomique, Universite De Provence
Inventors:
Eric Record, Anthony Levasseur, Markku Soloheimo, David Navarro, Martina Andgerg-Blomster, Frederic Monot, Tiina Nakari-Setala, Marcel Asther
Abstract: The invention relates to a method and an equipment for attenuating sound in a duct. Sound propagating in a duct is detected by means of a detector (2) and attenuated by using two successive monopole elements (3, 4) in such a way that both elements function as a dipole approximation and the elements are also used to approximatively produce the monopole radiation needed. A dipole control signal is fed to both elements (3, 4) at a phase shift which is 180° between the two elements. In addition, a monopole control signal is fed to the same elements (3, 4), only this time cophasally. Total volume velocities produced by the two elements (3, 4) are combinations of the portions obtained from the monopole and dipole sources.
Type:
Grant
Filed:
September 9, 1998
Date of Patent:
January 25, 2005
Assignee:
VTT
Inventors:
Seppo Uosukainen, Vesa Välimäki, Kari Kirjavainen, Jukka Lekkala, Hannu Nykänen
Abstract: The invention relates to a sensor for measuring acceleration and sound pressure, the sensor comprising a first pressure sensitive film (2) for measuring pressure (P) and second pressure sensitive film (5) having a mass (6) disposed thereon for measuring acceleration (A). The films are arranged concentrically in the same plane, so that pressure and acceleration are measured at the same point, thereby avoiding a phase difference between the two measurements.
Type:
Grant
Filed:
June 8, 1999
Date of Patent:
January 30, 2001
Assignee:
VTT
Inventors:
Kari Kirjavainen, Jukka Lekkala, Hannu Nyk{umlaut over (a)}nen, Seppo Uosukainen
Abstract: A process for fabricating a foamed plastic product. The process includes a plastic film that is prefoamed in order to introduce lamellar discontinuities such as prefoamed bubbles. The film is pressurized by a gas under a positive pressure causing the gas to diffuse into the film, forming a second film. Further, the second film is inflated in order to form the foamed plastic product. The second film is inflated by heating the second film at a temperature below the melting point of the second film and under a reduced pressure.
Type:
Grant
Filed:
April 21, 1997
Date of Patent:
September 21, 1999
Assignee:
VTT Technology OY
Inventors:
Jaako Raukola, Kari Kirjavainen, Hannu Minkkinen