Category Uncategorized

Brain Activity is Inherited, may inform Treatment for ADHD, Autism

Research findings may help to better characterize aspects of altered brain activity, development and disease. Credit: OHSU

Research findings may help to better characterize aspects of altered brain activity, development and disease. Credit: OHSU

Every person has a distinct pattern of functional brain connectivity known as a connectotype, or brain fingerprint. A new study conducted at OHSU in Portland, Oregon, concludes that while individually unique, each connectotype demonstrates both familial and heritable relationships. The results published today in Network Neuroscience. “Similar to DNA, specific brain systems and connectivity patterns are passed down from adults to their children,” said the study’s principal investigator Damien Fair, Ph.D., P.A.-C., associate professor of behavioral neuroscience and psychiatry, OHSU School of Medicine...

Read More

Cancer Cells destroyed with Dense Metal found in Asteroids

Organoiridium Photosensitizers Induce Specific Oxidative Attack on Proteins within Cancer Cells

Organoiridium Photosensitizers Induce Specific Oxidative Attack on Proteins within Cancer Cells

Cancer cells can be targeted and destroyed with the metal from the asteroid that caused the extinction of the dinosaurs, according to new research by an international collaboration between the University of Warwick and Sun Yat-Sen University in China. Researchers have demonstrated that iridium – the world’s second densest metal – can be used to kill cancer cells by filling them with deadly version of oxygen, without harming healthy tissue.

The researchers created a compound of iridium and organic material, which can be directly targeted towards cancerous cells, transferring energy to the cells to turn the oxygen (O2) inside them into singlet oxygen, which is poisonous and kills the cell – withou...

Read More

Medical-like tools for NASA to Study Samples of the Solar system

A NASA team scanned these terrestrial rock samples, all measuring two to four inches in diameter, to investigate possibilities for future in-space use of non-destructive evaluation techniques. The two rock samples on the bottom are from Earth's newest volcanic island in the Kingdom of Tonga; the sample on the upper left from kilometers deep contains large green olivine crystals and came from Oahu in Hawaii. The sample on the upper right is a 3.7-million-year old impact melt breccia from the Elgygytgyn impact crater in Siberia. Credit: NASA/W. Hrybyk

A NASA team scanned these terrestrial rock samples, all measuring two to four inches in diameter, to investigate possibilities for future in-space use of non-destructive evaluation techniques. The two rock samples on the bottom are from Earth’s newest volcanic island in the Kingdom of Tonga; the sample on the upper left from kilometers deep contains large green olivine crystals and came from Oahu in Hawaii. The sample on the upper right is a 3.7-million-year old impact melt breccia from the Elgygytgyn impact crater in Siberia. Credit: NASA/W. Hrybyk

A diagnostic tool, similar in theory to those used by the medical profession to non-invasively image internal organs, bones, soft tissue, and blood vessels, could be equally effective at “triaging” extraterrestrial rocks and other samples befor...

Read More

Plastic Nanoparticles inspired by Nature could improve Cancer Drug Delivery

Polymer synthesis, spectroscopic properties and self-assembly. a Synthesis of the perylene-bearing diblock terpolymer PEG43-b-P(NIPAM21-co-PDMI9). b Normalized absorption (solid lines) and fluorescence spectra (dashed lines) of the amine-reactive perylene derivative PDMI-PFP (red) and PEG43-b-P(NIPAM21-co-PDMI9) (blue) in THF. c TEM image of spherical aggregates formed by PEG43-b-P(NIPAM21-co-PDMI9) in a dilute THF solution (0.1 mg mL−1). Scale bar, 100 nm. d Schematic representation depicting the solvent-switch method used to induce self-assembly of PEG43-b-P(NIPAM21-co-PDMI9). e Schematic representations, average major axis lengths, aspect ratios, and TEM images of resulting self-assembled structures formed at different THF content. f Normalized absorption spectra of all five polymersomes in water

Polymer synthesis, spectroscopic properties and self-assembly. a Synthesis of the perylene-bearing diblock terpolymer PEG43-b-P(NIPAM21-co-PDMI9). b Normalized absorption (solid lines) and fluorescence spectra (dashed lines) of the amine-reactive perylene derivative PDMI-PFP (red) and PEG43-b-P(NIPAM21-co-PDMI9) (blue) in THF. c TEM image of spherical aggregates formed by PEG43-b-P(NIPAM21-co-PDMI9) in a dilute THF solution (0.1 mg mL−1). Scale bar, 100 nm. d Schematic representation depicting the solvent-switch method used to induce self-assembly of PEG43-b-P(NIPAM21-co-PDMI9). e Schematic representations, average major axis lengths, aspect ratios, and TEM images of resulting self-assembled structures formed at different THF content...

Read More