Researchers have engineered a new type of molecular probe that can measure and count RNA in cells and tissue without organic dyes. The probe is based on the conventional fluorescence in situ hybridization (FISH) technique, but it relies on compact quantum dots to illuminate molecules and diseased cells rather than fluorescent dyes. (Mehr in: Cancer News — ScienceDaily)
Cardiovascular diseases (CVDs) are the number one cause of death globally: more people die annually from CVDs than from any other cause. To date, despite important advances in diagnostics and therapeutics, several areas of significant unmet needs remain unaddressed. The ability to personalize cardiovascular medical care and improve outcomes will require characterization of the heart, other organs and the characterization of tumors at the molecular level. The MetaboliQs project combines diamond-based quantum sensing and medical imaging, two areas of European excellence, to foster the molecular understanding and personalized care of CVDs. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
Quantum technology forms the technological basis for the development of quantum computers, quantum sensors, quantum cryptography, and quantum communication systems. These technologies have the potential to disrupt a variety of existing industries. For example, quantum computers promise new possibilities for solving computing-intensive or previously not efficiently solvable problems. (Mehr in: Veranstaltungen – idw – Informationsdienst Wissenschaft)
Imagine holding two different medications in your hands, one being the original, the other one being a counterfeit. Both appear exactly the same. Is there any way for you to distinguish them? The answer is: yes. Our quantum cascade laser (QCL) has the ability to identify substances in a split second. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
Computer simulations that predict the light-induced change in the physical and chemical properties of complex systems, molecules, nanostructures and solids usually ignore the quantum nature of light. Scientists of the Max-Planck Institute for the Structure and Dynamics of Matter at CFEL in Hamburg and the Fritz Haber Institute of the Max Planck Society in Berlin have now shown how the effects of the photons can be properly included in such calculations. This study opens up the possibility to predict and control the change of material properties due to the interaction with light particles from first principles. The study is reported today in Proceedings of the National Academy of Sciences. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
Bisher wurde in Computersimulationen zur Vorhersage des Einflusses elektromagnetischer Strahlung auf Moleküle, Nanostrukturen oder Festkörper angenommen, dass Licht sich klassisch verhält. Wissenschaftler des Max-Planck-Instituts für Struktur und Dynamik der Materie am CFEL in Hamburg und des Fritz-Haber-Instituts der Max-Planck-Gesellschaft in Berlin haben nun gezeigt, wie man in solchen Simulationen die Quantennatur des Lichts berücksichtigt. Die heute in der Fachzeitschrift Proceedings of the National Academy of Sciences veröffentlichte Methode könnte in Zukunft dafür genutzt werden, Materialeigenschaften gezielt mit Photonen zu verändern. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
Calculation with electron spins in a quantum computer assumes that the spin states last for a sufficient period of time. Physicists at the University of Basel and the Swiss Nanoscience Institute have now demonstrated that electron exchange in quantum dots fundamentally limits the stability of this information. Control of this exchange process paves the way for further progress in the coherence of the fragile quantum states. The report from the Basel-based researchers appears in the scientific journal Physical Review Letters. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
With the help of a semiconductor quantum dot, physicists at the University of Basel have developed a new type of light source that emits single photons. For the first time, the researchers have managed to create a stream of identical photons. They have reported their findings in the scientific journal Nature Communications together with colleagues from the University of Bochum. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)
Implications of quantum metabolism and natural selection for the origin of cancer cells and tumor progression
Energy transfer in material solids is driven primarily by differences in intensive thermodynamic quantities such as pressure and temperature. The crucial observation in quantum-theoretical models was the consideration of the heat capacity as associated with the vibrations of atoms in a crystalline solid. However, living organisms are essentially isothermal. Because of very little differences in temperature between different parts of a cell it is assumed that energy flow in living organisms is mediated by differences in the turnover time of various metabolic processes in the cell, which occur in cyclical fashion. It has been shown that the cycle time of these metabolic processes is related to the metabolic rate, that is the rate at which the organism transforms the free energy of whatever source into metabolic work, maintenance of constant temperature and structuraland functional organization of the cells. Quantum Metabolism exploits the methodology of the quantum theory of solids to provide a molecular level which derives new rules relating metabolic rate and body size.
Davies P, Lloyd A, Demetrius LA, Tuszynski, JA (2012) Implications of quantum metabolism and natural selection for the origin of cancer cells and tumor progression. Citation: AIP Advances 2, 011101 (2012); doi: 10.1063/1.3697850
Rieper, Anders and Vedral modelled the electron clouds of nucleic acids in a single strand of DNA as a chain of coupled quantum harmonic oscillators with dipole-dipole interaction between nearest neighbours. As a main result, the entanglement contained in the chain coincides with the binding energy of the molecule. Derived in the limit of long distances and periodic potentials analytic expressions linking the entanglement witnesses to the energy reduction due to the quantum entanglement in the electron clouds.
Wholeness and implicate order: “Deep” quantum chemistry and cell consciousness: quantum chemistry controls genes and biochemistry to give cells and higher organism’s consciousness and complex behavior
Bohm used the term ‘holomovement’ which is an unbroken and undivided totality and carries an implicate order which is he totality of an order including both the manifested and non-manifested aspects of the order. Non-local quantum phenomena reside in a subtler level than quantum level that is the quantum potential which sustains intimately within the underlying implicates order and the quantum processes are driven by information from quantum potential. A global quantum field of a cell, which can be described as a super orbital, provides many levels of interactions among all particles of a cell. From quantum metabolism pint of view all electrons that are contained in one system are inseparable from eachother. In a cell the cytoplasm is a gel made of up to 30% proteins, and the structure of this gel is very much like a liquid crystal which provides collective properties of the electrons.
All these electrons within this super orbital of molecules and co-enzymes of the cell, including all the many small molecules embedded in these large biomolecules, and cofactors transporting electrons are making up one huge structure that is a global cell orbital.
Ventegodt S, Hermansen TD, Flensborg-Madsen T, Nielsen ML and Merrick J (2006) A theory of “Deep” quantum chemistry and cell consciousness: quantum chemistry controls genes and biochemistry to give cells and higher organism’s consciousness and complex behavior. The Scientific World Journal 6, 1441-1453.
Quantum tunnelling is a phenomenon which becomes relevant at the nanoscale and below. It is a paradox from the classical point of view as it enables elementary particles and atoms to permeate an energetic barrier without the need for sufficient energy to overcome it. Tunnelling is being of vital importance for life: physical and chemical processes can be traced directly back to the effects of quantum tunnelling. These processes include the prebiotic chemistry as well as the function of biomolecular nanomachines and has many highly important implications that can be derived from to the field of molecular, prebiotic chemistry and biological evolution, respectively.
From the aspect of the quantum information theories, various quantum entropies are possibly computed at each stage, which ensures the emergence of the entangled states in the intermediate step. If a single qubit quantum teleportation is near the computational basis, the quantum measurement is dominantly responsible for the joint entropy at the final stage. If it is far from the computational basis, this dominant responsibility is moved into the quantum measurement of system. Therefore, the relative entropy can be regarded as a measure for distance between two different quantum states like trace distance or fidelity. Some relative entropies become infinity, which indicates the non-trivial intersection of the support of one quantum state with kernel of the other quantum state.
A new theory of the origin of cancer: quantum coherent entanglement, centrioles, mitosis, and differentiation
Low non-specific, low intensity laser illumination (635, 670 or 830 nm) apparently enhances centriole replication and promotes cell division, what is the opposite of a desired cancer therapy. In the contrary, centrioles are sensitive to coherent light. Then higher intensity laser illumination – still below heating threshold – may selectively target centrioles, impair mitosis and be a beneficial therapy against malignancy. If centrioles utilize quantum photons for entanglement, properties of centrosomes/centrioles approached more specifically could be useful for therapy. Healthy centrioles for a given organism or tissue differentiation should then have specific quantum optical properties detectable through some type of readout technology. An afflicted patient’s normal cells could be examined to determine the required centriole properties which may then be used to generate identical quantum coherent photons administered to the malignancy. In this mode the idea would not be to destroy the tumor – relatively low energy lasers would be used – but to “reprogram” or redifferentiate the centrioles and transform the tumor back to healthy well differentiated tissue.