Degradable sugar-based polymers may store and release useful molecular freight — ScienceDaily

Degradable, bio-based polymers offer options for chemical recycling, and they can be a tool to store and release useful molecules. Scientists have developed a class of sugar-based polymers that are degradable through acid hydrolysis. The researchers also integrated “cargo” molecules in the polymer, which are designed to split off after polymer degradation. Degradable, cargo-bearing polymers […]

Lasers and molecular tethers create perfectly patterned platforms for tissue engineering

Top view of two collagen hydrogels that researchers decorated with immobilized mCherry proteins, which glow red under fluorescent light. The team scanned near-infrared lasers in the shapes of a monster (left) and Seattle’s Space Needle (right) to create these patterns. Black regions were not scanned with the laser, and so the mCherry protein did not […]

Electrons hop to it on twisted molecular wires

IMAGE: Concept and chemical structure of periodically twisted molecular wires. view more  Credit: Osaka University Osaka, Japan – Researchers at Osaka University synthesized twisted molecular wires just one molecule thick that can conduct electricity with less resistance compared with previous devices. This work may lead to carbon-based electronic devices that require fewer toxic materials or harsh […]

Molecular reporters expose the allies of the brain tumor — ScienceDaily

Glioblastoma is the most common malignant brain tumor in adults. Roughly five in every 100,000 people develop this type of cancer each year. The diagnosis amounts to a death sentence: Even after surgical resection followed by radiation and chemotherapy, the glioblastoma will kill the patient in a few months. This is because the tumor invariably […]

Molecular crystal structures pack it in

Autopack rotates crystal structures in 3D space to minimize their molecules’ projected area. After convergence, it is possible to extract the crystal’s associated packing motif based on relative interplanar angles. In this example, the stacks found after the optimization procedure indicate the structure’s beta packing motif. Credit: Lawrence Livermore National Laboratory Whether organic chemists are […]

Molecular reporters expose the allies of the brain tumor

IMAGE: Previously only suspected, now made it visible thanks to the molecular reporter: where human tumor cells and brain cells of a mouse meet, the tumor cells have a different identity… view more  Credit: Gargiulo Lab, MDC Glioblastoma is the most common malignant brain tumor in adults. Roughly five in every 100,000 people develop this type […]

Engineers reveal molecular secrets of cephalopod powers

“This research can be viewed as a valuable conceptual framework for using this class of proteins in bioengineering applications,” said Alon Gorodetsky, UCI associate professor of chemical and biomolecular engineering. Credit: Debbie Morales/UCI Reflectins, the unique structural proteins that give squids and octopuses the ability to change colors and blend in with their surroundings, are […]

Scientists encapsulate catalyst in a protective molecular sieve that selectively prevents undesired reactions in methanol fuel cells — ScienceDaily

Because of the many environmental problems caused by the use of fossil fuels, many scientists worldwide are focused on finding efficient alternatives. Though high hopes have been placed on hydrogen fuel cells, the reality is that transporting, storing, and using pure hydrogen comes with a huge added cost, making this process challenging with current technology. […]

Lanthanide nanocrystals brighten molecular triplet excitons

Figure shows a schematic illustration of a lanthanide-doped nanoparticle couped with an organic semiconductor. The research findings by the team provide a new way to control triplet excitons, which is important for optoelectronic research. Credit: HAN Sanyang NUS scientists have developed an approach to improve the generation and luminescent harvesting of molecular triplets by coupling […]