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Tag: "materials" at biology news

Nanoparticles offer new hope for detection and treatment

...nt tumors as effectively as they carry the imaging materials that spotlight cancerous growth. "One of the best advantages of the particles is that we designed them to detect tumors using the same MRI equipment that is in standard use for heart or brain scans," says senior author Gregory Lanza, M.D., Ph.D., as...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

.... And we were able to visually identify biological materials from a standard image captured by the rover. Taken together, these four pieces of evidence are strong indicators of life," said Waggoner. "Now, our findings are being confirmed in the lab. Samples collected in the Atacama were examined, and scientist...

Polymers with copper show promise for implanted sensors

...lymeric coatings," said Meyerhoff. However, those materials have some characteristics that may limit their use...hers plan to test the new polymers to see if these materials are as effective at preventing clots as the nitric oxide-releasing polymers they developed earlier. ...

Probing the promise and perils of nanoparticles

...ring. "We're trying to do both: make important new materials and be excited about what can be done with them, b...formation may be at least as important in allowing materials to travel through membranes. The work that Banaszak Holl, Hong and Leroueil will discuss is one of ...

DuPont's first biologically derived polymer receives global recognition

... because it demonstrates that the use of renewable materials and processes can create new performance technologies and products." At the January 2005 Innovative Design Night, sponsored by the China State Intellectual Property Office and state-run CCTV, Sorona® was selected as the "Most Visionary Innovation" i...

Programmable cells: Engineer turns bacteria into living computers

...eventual goals, which is to have the cells secrete materials that build physical devices such as antennas or transmitters in places that are hard for humans to reach. Programmed cells also could be used to control the repair or construction of tissues within the body, possibly guiding stem cells to the locatio...

Scientists discuss improved biopesticides for locust control in West Africa

...cides are types of pesticides derived from natural materials such as microbes, principally viruses, bacteria, and fungi. "The biopesticide that is registered for use in West Africa derives from a fungus that is a specific pathogen of locusts and grasshoppers. It specifically targets those insects and does not ...

LUCA technologies confirms real-time methane generation

...obes that generate methane by metabolizing organic materials including various hydrocarbons. While it has also been generally accepted that many of the known methane deposits were produced by such organisms, most of this production was thought to have occurred millions of years ago, when the hydrocarbon deposi...

Self-assembled nano-sized probes allow Penn researchers to see tumors through flesh and skin

...the University of Minnesota has lodged fluorescent materials called porphyrins within the surface of a polymersome, a cell-like vesicle, to image a tumor within a living rodent. Their findings, which represent a proof of principle for the use of emissive polymersomes to target and visualize tumors, appear in t...

Affymetrix and the Karolinska Institutet Announce Translational Medicine Strategic Alliance

...to a very broad range of population-based clinical materials and data, that we want to study in order to understand the importance of genetic factors for emergence and treatment of various diseases. The agreement enables us to perform these studies at an acceptable cost and we will also get access to new techn...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...ed ‘IBN-1?to ‘IBN-5? They represent a new class of materials that are tailored simultaneously with nanometer-sc...oaches to immobilize these catalysts on nanoporous materials synthesized by its wet-chemical technique. This renders the catalysts in a solid form, enabling them...

NC State scientist finds soft tissue in T. rex bones

... removing the minerals leaves supple, soft organic materials that are much easier to work with in a lab. In contrast, fossilized bone is believed to be completely mineralized, meaning no organics are present. Attempting to dissolve the minerals from a piece of fossilized bone, so the theory goes, would merely ...

Study shows nanoshells ideal as chemical nanosensors

...tering thantraditional methods. Whenmolecules and materials scatter light, a small fraction of the lightintera...rs, chemists and otherscientists to determine what materials are made of. An enormouslimitation in the use of Raman scattering has been its extremely weaksensiti...

Open microfluidic and nanofluidic systems

...heory for the dependence of this morphology on the materials properties and on the channel design. Such a theory has now been developed. This theory addresses the strong capillary forces between substrate material and liquid and takes the ‘freedomâ€TM of contact angles at pinned contact lines into account. S...

Probing The Promise And Perils Of Nanoparticles

...ring. "We're trying to do both: make important new materials and be excited about what can be done with them, b...formation may be at least as important in allowing materials to travel through membranes. The work that Banaszak Holl, Hong and Leroueil will discuss is one of ...

Scientists rid stem cell culture of key animal cells

...were an important ingredient in the mix of culture materials required to keep stem cells in their undifferentiated "blank slate" state. Embryonic stem cells are capable of forming any of the 220 tissues and cells in the human body and, in culture, are constantly trying to migrate down different developmental p...

Whole genome fine map of rice completed

...of single genes provided a unlimited source of raw materials for gene genesis, creating differences among the grass family. The Chinese Superhybrid Rice Genome Project, initiated by BGI in 2000, focused on the hybrid rice "Liang You Pei Jiu" as the basic research object. The hybrid was developed by the famous...

UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims

...ads in American medical journals to determine what materials are cited in support of medical claims and if those references are available to physicians. Researchers also determined the funding sources of research cited in the ads. The study is published in the Feb. 15 issue of the Canadian Medical Association...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

... used for growth and differentiation still contain materials fromanimal sources and are hence contaminated with Neu5Gc.In addition to using human serum, the researchers suggested thepossibility of using what are called "feeder cells" from mice with ahuman-like defect in Neu5Gc production. They noted that they ...

Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants

...ew tool to botanical scientists bymerging areas of materials science, chemistry and plant biology.The findings ...and female tissue during reproduction.“Integrating materials science, chemistry and plant biology tounderstand how and where specific proteins act on a pollen tu...

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