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• Icy exposure creates armored polymer high tech foams

  Chemists and engineers at the University of Warwick have found that exposing particular mixtures of polymer particles and other materials to sudden freeze-drying can create a high-tech armored foam that could be used for a number of purposes, including a new range of low power room temperature gas s more

• ECHA recommends strict control for seven substances of very high concern

  The European Chemicals Agency recommends that seven chemical substances of very high concern should not be used without specific authorisation. Three of the recommended substances are classified as toxic to reproduction, one as carcinogenic and three fulfil the criteria for being persistent, bioaccu more

• Using light to move and trap DNA molecules

  A major goal of nanotechnology research is to create a "lab on a chip," in which a tiny biological sample would be carried through microscopic channels for processing. This could make possible portable, fast-acting detectors for disease organisms or food-borne pathogens, rapid DNA sequencing and oth more

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• Field-Flow Fractionation - The Universal Separation Principle for Particle and Macromolecule Characterization
  

  High molecular weight polymers, bio molecules or particles in a range of a few nanometers up to several microns are more and more important in science and technology. Many applications are based on the specific properties of these materials. For this reason, an exact knowledge of the molar mass or particle sizes distribution is essential for later application as well as for optimization of the production processes or quality control. In addition the knowledge about the chain structure of macromolecules or biopolymers as well as about the shape of particles is often necessary. For this reason those samples, which often can be very complex systems, have to be separated according to parameters such as e.g. hydrodynamic volume or molecular weight. After the separation process the resulting narrow dispersed fractions are detected with different techniques. more

• Optimization of Transfection Conditions for the Human HL-60 Promyelocytic Leukemic T-Cell Line Using FuGENE® HD Transfection Reagent
  

  Transfection is commonly performed to introduce many different types of molecules (plasmid DNA, RNA, siRNA, miRNA) into eukaryotic cell lines. Once inside, these molecules can be expressed in a transient or a stable fashion. In the case of transient transfection, molecules do not integrate into the host cell genome and are only expressed for approximately 24 hours - 96 hours post-transfection. more

• Superiority of FuGENE® HD Transfection Reagent in Minimizing Non-Specific Cellular Interferon Responses
  

  Many viruses, including human cytomegalovirus (HCMV), encode for genes that can modulate or interfere with the ability of cells to mount an effective antiviral response to infection. Transfection of viral genes into cultures of mammalian cells is an important research tool to evaluate the function of viral gene products. We utilized this approach to identify viral genes involved in modulation of interferon (IFN)-mediated cell signaling pathways. more

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