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Also included in second-quarter 2008 sales revenue were contract polymer intermediates sales resulting from the fourth-quarter 2007 divestiture of PET polymers manufacturing facilities and related businesses in Mexico and Argentina. Excluding these items for both periods, sales revenue declined by 27 percent due to a decline in sales volume of 13 percent primarily attributed to the global recession, and lower selling prices in response to lower raw material and energy costs particularly in the... (Orangeburg Times and Democrat, SC)
Artificial Golgi: Insight Into Cell Structure Aug 3, 2009
Polymer chemists have created a flexible, indestructible material, called metal rubber, that can be heated, frozen, washed or doused with jet fuel. . (Science Daily)
Charging Ahead: Revealing Secrets Of Electricity-producing Materials Jul 29, 2009
Ramanan Krishnamoorti, chairman of the department of chemical and biomolecular engineering, is working with Sharma to embed classes of nanostructures in polymers to create unusual types of piezoelectrics ... Polymer chemists have created a flexible, indestructible material, called metal rubber, that can be heated, frozen, washed or doused with jet fuel. (Science Daily)
SDK Develops Organic EL Devices with Light Output of 40% Jul 28, 2009
As a result, SDK has achieved a 30 lm/W emissive efficiency for its coated phosphorescent-polymer-based organic EL devices ... Since we are developing a coated-polymer type (easy to make large area-emission organic EL panels) and a phosphorescent type (with high potential for increased emissive efficiency), we expect our organic EL devices with the new structure will be used widely for general lighting applications in the future ... SDK will continue working with SRI International, a non-profit... (JCN Network, Japan)
Beetle Shimmer: New Materials That Reflect Light Jul 27, 2009
"The Chrysina gloriosa beetle reflects a green light," said lead researcher Mohan Srinivasarao with Georgia Tech's School of Polymer, Textile & Fiber Engineering. "This has been known for about 100 years, but we've determined the colors we see result from the beetle's physical structure rather than its biology.". (Science Daily)
Cell Membranes Applied To Manufactured Surfaces Could Lead To New Class Of Self-assembling Materials Jul 26, 2009
These miniscule polymers were incorporated into artificial membranes placed on a silicon wafer that acts like a mirror, allowing precise optical measurements of the orientation of the molecule ... Researchers at the Max Planck Institute for Polymer Research. (Science Daily)
Silicon With Afterburners: New Process Could Be Boon To Electronics Manufacturer Jul 25, 2009
ScienceDaily (July 24, 2009) Scientists at Rice University and North Carolina State University have found a method of attaching molecules to semiconducting silicon that may help manufacturers reach beyond the current limits of Moore's Law as they make microprocessors both smaller and more powerful. Moore's Law, suggested by Intel co-founder Gordon Moore in 1965, said the number of transistors that can be placed on an integrated circuit doubles about every two years. (Science Daily)
New Lab Test Offers Better Prediction Of HIV Microbicide Safety Jul 24, 2009
What was surprising, she says, was to observe the same result with cellulose sulfate a sulfated polymer that is not a detergent and was shown to be safe in all of the other bioassays and in early clinical trials. These findings may explain the unanticipated clinical trial results in which use of cellulose sulfate was associated with an increase in HIV transmission. (Science Daily)
SDK Develops Bipolar-Type Carbon Separators for PEFCs Jul 24, 2009
Tokyo, July 23, 2009 - (JCN Newswire) - Showa Denko K.K. (SDK) has developed new technologies to produce low-cost carbon separators that will increase output density of polymer electrolyte fuel cells (PEFCs). Specifically, SDK has established technologies to produce carbon separators with lower cost and lighter weight by making substantial changes in the process and raw materials. (JCN Network, Japan)
Drug-Dispensing Contact Lens Jul 23, 2009
Kohane, collaborator Joseph Ciolino, MD, of the Massachusetts Eye and Ear Infirmary, and colleagues at the Department of Chemical Engineering at the Massachusetts Institute of Technology (MIT) created a two-layer contact lens with an inner drug-bearing biodegradable polymer film known as PLGA. Both PLGA and pHEMA (used for the coating) have been well studied and are already approved for ocular use by the Food and Drug Administration. In laboratory testing, the prototype lenses dispensed... (Newsmax)
Albemarle Reports Second Quarter 2009 Results Jul 23, 2009
Sequential turnaround in Polymer Additives segment ... Commenting on results, Mark C. Rohr, Chairman and CEO, stated, "While the challenging economy continues to affect many of our markets, our second quarter results reflect encouraging progress overall. Cost control and some volume gains resulted in significant sequential improvements in our Polymer Additives segment profitability. Our Catalysts business also reported sequential profit improvement, driven by record performance in our polyolefin... (PR Newswire)
New Method To Encapsulate Substances In Nanospheres Jul 17, 2009
Until now this technique was possible with liposomes (commonly used in cosmetics), dendrimers (polymeric macromolecules) or polymeric organic particles ... Polymer chemists have created a flexible, indestructible material, called metal rubber, that can be heated, frozen, washed or doused with jet fuel. (Science Daily)
New Power Source For Portable Electronic Devices Jul 16, 2009
The simplest device, a polymer electrolyte membrane (PEM) fuel cell uses the electrochemical reaction of a fuel and oxidant to generate an electric current. Daniel's research has revealed that more work is needed for integration of fuel cells into a complete system and he plans to do a PhD in Microfluidics to develop his research further. (Science Daily)
Physics Research With Atomic Force Microscope Could Lead To Better Health Care Jul 8, 2009
For example, Szoszkiewicz and colleagues have created and investigated the nature of nanoscale ripples created on polymers, or the "polymer dunes" at a nanoscale level. Using custom-made polymers, the researchers scratched them with the hot tip while using enough heat to indent within the polymer during scratching but not to destroy the polymer sample ... Such research investigated how these tiny dunes created on polymers change with the application of heat. (Science Daily)
Super glue: It's holding us together these days Jul 7, 2009
"Glue" includes a wide range of surgical sealants superglues, bone cements, polymers, clotting agents and other products that share an important quality: They're applied as liquids, then harden into solids ... "This field polymer chemistry has a huge impact on health care," says Dr. Barry Katzen, medical director of the Baptist Cardiac lar Institute in Kendall ... Onyx: It's a liquid polymer made by EV3 Corp. of Irvine, Calif. (Montana Standard, MT)
Face value: The alternative choice Jul 5, 2009
They would be converted into glucose (of which cellulose, which makes up much of the dry weight of a plant, is a polymer) and the glucose would be shipped around much as oil is today, for eventual conversion into biofuels and bioplastics. That idea might not go down well with energy nationalists, who want America to declare independence from all hot and unreliable countries, whether oil producers or agricultural powers, but it shows vision on the scale needed to deal with global warming. (The Economist)
HEALTH NOTES / Staying informed about change Jul 4, 2009
C. The authors stated that the source of ethylene glycol is the small amount of un-reacted chemical in the polyethylene terephthalate polymer. The majority of the world s PET production is for synthetic fibers with bottle production accounting for around 30 percent of global demand. (Cohasset Mariner, MA)
Advanced Battery Technologies Remedies Non-Compliance With NASDAQ Listing Standard Jul 3, 2009
NEW YORK, July 2, 2009 (GLOBE NEWSWIRE) -- Advanced Battery Technologies, Inc. (Nasdaq: - ), a leading developer, manufacturer and distributor of rechargeable Polymer Lithium-Ion (PLI) batteries, today announced that on June 30, 2009 the NASDAQ Stock Market sent written notice to Advanced Battery Technologies that its private placement of Series F 0% Convertible Preferred Stock on June 17, 2009 did not comply with NASDAQ Listing Rule 5640 ... Advanced Battery Technologies, Inc., founded in... (Primezone Releases)
New lab-on-a-chip measures mechanics of bacteria colonies Jul 1, 2009
The channel-etched chip, made from a flexible polymer, allows researchers to study minute samples of between 50 and 500 bacterial cells that form biofilms of 10-50 microns in size. A micron is one-millionth of a meter. (EurekAlert!)
Nonstick And Laser-safe Gold Aids Laser Trapping Of Biomolecules Jul 1, 2009 Nano-Sized Assassins Kill Bacteria on Body Implants Jun 27, 2009 New Nanoparticles Could Revolutionize Therapeutic Drug Discovery Jun 26, 2009 Electronic nose sniffs out cancer Jun 26, 2009 Burr-like Molecule-size Capsules Deliver Drugs Jun 26, 2009 Chemical Nose May Sniff Out Cancer Earlier Jun 24, 2009 A library of the worlds most unusual compounds, George Pendle, Financial Times Jun 24, 2009 Carb synthesis sheds light on promising tuberculosis drug target Jun 23, 2009 SDK to Sell Conductive Polymer Aluminum Capacitors Business Jun 23, 2009 Initial development of bio fuel cells Jun 21, 2009 Green Building.... New Trim EZ PRO SERIES Easy on the Environment Jun 21, 2009 Research explores interactions between nanomaterials, biological systems Jun 20, 2009 Strong Freestanding Nanoparticle Films Created Without Fillers Jun 20, 2009 Crustacean Shell With Polyester Creates Mixed-fiber Material For Nerve Repair Jun 19, 2009 Unlike rubber bands, molecular bonds may not break faster when pulled Jun 18, 2009 Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii Jun 18, 2009 New fabricated material changes color instantly in response to external magnetic field Jun 17, 2009 Daya Materials has RM85m contracts in hand Jun 5, 2009 Paclitaxel Poliglumex (OPAXIO(TM)) Added to Cisplatin and Radiation Produces 45% Pathologic Complete Remissions in Patients With Esophageal Cancer Jun 3, 2009 New 'Microcapsules' Put More Medication Into The Bloodstream To Treat Disease Jun 2, 2009 Droplets Manipulated On Nanostructured Silicon Surfaces May 27, 2009 NIST study finds a decade of high-payoff, high-throughput research May 22, 2009 Drug Deliver With Nanotechnology: Capsules Encapsulated May 21, 2009 Plastic that grows on trees, part two May 20, 2009 New Tool For Next-generation Cancer Treatments Using Nanodiamonds May 19, 2009 Longer shelf life? May 17, 2009 Study on fluorspar is promising - Necsa May 16, 2009 New 'Smart' Polymer Reduces Radioactive Waste At Nuclear Power Plants May 16, 2009 See The Force: Mechanical Stress Leads To Self-sensing In Solid Polymers May 15, 2009 Seeing red means danger ahead May 15, 2009 Kinovate Life Sciences, Inc. and Nitto Denko Corporation Announce Successful Development of NittoPhase™ HL High Loading Solid Support for Oligon May 15, 2009 UCLA researchers develop new method for producing transparent conductors May 14, 2009 Swarm mentality May 13, 2009 Battery-powered Vehicles To Be Revolutionized By New Technology May 12, 2009 Chemists Develop New Preparation Process For Metal-organic Frameworks May 11, 2009 Inventions aid nuclear clean-up May 11, 2009 American Chemical Society's weekly PressPac -- May 6, 2009 May 11, 2009 How Much Oil Have We Used? May 9, 2009 The green-diaper movement May 9, 2009 Targeting Tumors Using Tiny Gold Particles May 5, 2009 Questions and answers May 5, 2009 Anti-aging Cosmetic Reduced Wrinkles In Clinical Trial May 4, 2009 Nanotechnology holds promise for STD drug delivery May 4, 2009 Students share scientific discoveries May 2, 2009 'Self-healing' Polymer May Facilitate Recycling Of Hard-to-dispose Plastic May 2, 2009 GE holographic disk said to top 500 Gbytes Apr 29, 2009 Macromolecules Made from Activated ... Apr 28, 2009 American Chemical Society Weekly PressPac -- April 15, 2009 Apr 20, 2009 Next Generation Nanofilms Created Apr 20, 2009 New Laser Technique Advances Nanofabrication Process Apr 18, 2009 Carbon Nanotube Polymer Nanocomposites For Field Emission Cathodes Apr 17, 2009 Rice researchers unzip the future Apr 16, 2009 South Africa: Biodegradable Label Less Eco-Friendly Than It Promises Apr 16, 2009 Nanoribbons from sliced open nanotubes: new, faster, more accurate method from Stanford Apr 16, 2009 Impact Of Floods On Soils Apr 16, 2009 Case Western Reserve University engineers hit pay dirt with clay mixture Apr 15, 2009 New 'Near-field' Radiation Therapy Promises Relief For Overheating Laptops Apr 15, 2009 Researchers Increase Efficiency Of Photocatalysts Used In Cancer Treatments Apr 14, 2009 Renewable Energies: The Promise Of Organic Solar Cells Apr 11, 2009 Red-Hot Research Could Lead To New Materials Apr 11, 2009 Northern Technologies International Corporation Reports Second Quarter Fiscal 2009 Financial Results Apr 11, 2009 Engineers Develop Method To Disperse Chemically Modified Graphene In Organic Solvents Apr 9, 2009 'Molecular Ripcord' For Chemical Reactions Apr 7, 2009 Fitter Frames: Nanotubes Boost Structural Integrity Of Composites Apr 4, 2009 Virus battery could 'power cars' Apr 3, 2009
These bonds were mechanically strong enough to withstand high-force laser trapping and chemically robust enough to allow the JILA team to coat the unreacted gold on each nanopost with a polymer cushion, which eliminated undesired sticking. Now you can anchor DNA to gold and keep the rest of the gold very nonstick, Perkins says. (Science Daily)
Big find in a tiny package Jun 28, 2009
University of Georgia graduate student Kyle Sontag purifies a chemical compound in a UGA laboratory before using the substance to form tiny strands of electricity-conducting polymers - plastic ... Chemistry and engineering professor Jason Locklin and graduate students Kyle Sontag and Nicholas Marshall developed a way to grow tiny strands of electricity-conducting polymer on a metal surface ... Bare metal causes scarring, but thin sheets of the polymer wire brushes might reduce or prevent the... (Athens Banner-Herald)
0 Using a polymer coating designed to resemble the outer surface of a cell membrane, a team of investigators led by Steve Armes, Ph. D., of the University of Sheffield in the United Kingdom, has created a highly stable, biocompatible. (Newsmax)
Professor Michael Overduin, from the University of Birmingham, who led the study, explained: "We have shown how a polymer can wrap around and preserve membrane proteins intact in stable nanoparticles. Membrane proteins are the most valuable but technically challenging targets for drug discovery. Finding a gentle solution that preserves their structure and activity, yet is robust enough for experimental interrogation, has eluded scientists for decades, but is now available.". Using a polymer -... (Science Daily)
The polymer coating supplied to Rotello and Jerry by Bunz is called para-phenyleneethynylene. PPE acquires the ability to glow when displaced from the gold surface of a nanoparticle as a cell attaches itself, allowing the type of cell to be determined by the light patterns generated. (EETimes)
Like Burrs On Your Clothes, Molecule-size Capsules Can Deliver Drugs By Sticking To Targeted Cells. Like Burrs On Your Clothes, Molecule-size Capsules Can Deliver Drugs By Sticking To Targeted Cells. (Science Daily)
ScienceDaily (June 24, 2009) Using a chemical nose array of nanoparticles and polymers, researchers at the University of Massachusetts Amherst have developed a fundamentally new, more effective way to differentiate not only between healthy and cancerous cells but also between metastatic and non-metastatic cancer cells ... Rotello s research team, with colleagues at the Georgia Institute of Technology, designed the new detection system by combining three gold nanoparticles that have special... (Science Daily)
The materials being discussed included a plastic made from waste potato starch, a super-absorbing polymer that can swell to 1,000 times its dry weight, and a compostable plastic which, the designers suggest, would make good coffin material ... The super-absorbing polymer was dipped into a glass of water but failed to absorb much, instead secreting a slimy gel ... Divided into like groups (polymers, concrete-based materials, glass), the library is as pristine and orderly as its British cousin... (Harper's Magazine)
In addition to its implications for human health, the mechanism offers insight into a widespread but poorly understood basic biological function controlling the length of carbohydrate polymers. "Carbohydrate polymers are the most abundant organic molecules on the planet, and it's amazing that we don't know more about these are made," says Laura Kiessling, a professor of chemistry and biochemistry at UW-Madison ... "There's not much known about how length is controlled in these carbohydrate... (EurekAlert!)
Tokyo, June 22, 2009 - (JCN Newswire) - Showa Denko K.K. (SDK) has decided to transfer its solid conductive polymer aluminum surface-mount capacitors business to Murata Manufacturing Co., Ltd.The capacitors, commercialized in 2000 with SDK's proprietary technologies and sold under the trade name of SDK-CAPTM, are characterized by their low ESR (equivalent series resistance) and high heat resistance. The capacitors are being produced at SDK's Oyama Plant, and demand for the product is expected to... (JCN Network, Japan)
UGA chemist Jason Locklin and graduate students Nicholas Marshall and Kyle Sontag grew polymer brushes, made up of chains of thiophene and benzene, aromatic molecules sometimes used as solvents, attached to metal surfaces as ultra-thin films. "The molecular wires are actually polymer chains that have been grown from a metal surface at very high density," said Locklin, who has a joint appointment in UGA's Franklin College of Arts and Science and on the Faculty of Engineering ... "The structure of... (India Times, India -- Health/Science)
AIR QUALITY VOCs Made from a high-quality polymer composite and not from wood, our finished products are free of VOC emissions ... DOING OUR SHARE As Trim EZ Pro Series flexible trims and mouldings are made from a high-quality polymer and not from wood, no trees are lost in the process. (Yahoo News -- Press Releases)
Nanoparticles in cosmetic formulations such as suntan lotions, for instance, may be coated with a water-repelling polymer to reduce direct contact with human skin. An extension of this principle uses polymers and detergents to decrease cellular uptake. (EurekAlert!)
These particles are not very sticky so they don t form coherent thin films unless they are encapsulated in a polymer coating or mixed with molecules called chemical cross-linkers that act like glue to stick the nanoparticles together ... In addition, the added material, usually a polymer, can modify the physical properties that make these films so interesting, says James Dickerson, assistant professor of physics at Vanderbilt, who headed the research group that created the freestanding... (Science Daily)
The hybrid fiber combines the biologically favorable qualities of the natural material with the mechanical strength of the synthetic polymer. "A nerve guide requires very strict conditions. It needs to be biocompatible, stable in solution, resistant to collapse and also pliable, so that surgeons can suture it to the nerve," said Miqin Zhang, a UW professor of material science and engineering and lead author of a paper now available online in the journal Advanced Materials. (Science Daily)
University of Illinois scientists studying chemical bonds now have shown this isn't always the case, and their results may have profound implications for the stability of proteins to mechanical stress and the design of new high-tech polymers ... The good news, Boulatov said, is that not every polymer that is stretched will break faster ... "We might be able to design polymers, for example, that would resist fragmentation under modest mechanical stresses," he said, "or will not break along the... (EurekAlert!)
The sequence also provided important information on the genes that code for alginate, a polymer that further protects the organism from excess oxygen by forming a physical barrier around the bacterium. "A. vinelandii is an attractive model organism for biochemical studies because of its ability to produce high yields of quality enzymes," said Joo Setubal, associate professor at VBI and the Department of Computer Science at Virginia Tech. (EurekAlert!)
A research team led by a chemist at the University of California, Riverside has fabricated microscopic polymer beads that change color instantly and reversibly when external magnetic fields acting upon the microspheres change orientation ... They also are highly compatible with various types of dispersion media such as water, alcohol, hexane and even polymer solutions, allowing them to retain magnetically tunable colors in a variety of chemical environments ... In their lab experiments, the... (EurekAlert!)
Besides contracts in hand, DMB has recurring orders for its polymer compounds used in the power cable industry, downstream process chemicals for oil and gas refineries, and the daily heavy lift services, which generates between RM5mil and RM8mil for the group monthly ... Daya Materials is principally involved in the provision of oil and gas products and services, specialty chemicals, advanced polymers as well as technical services. (The Star Online, Malaysia)
OPAXIO(TM) (paclitaxel poliglumex, CT-2103), which was formerly known as XYOTAX(TM), is an investigational, biologically enhanced, chemotherapeutic that links paclitaxel, the active ingredient in Taxol(R), to a biodegradable polyglutamate polymer, which results in a new chemical entity. When bound to the polymer, the chemotherapy is rendered inactive, potentially sparing normal tissue's exposure to high levels of unbound, active chemotherapy and its associated toxicities ... Once inside the... (PR Newswire)
13, 2009) A tiny particle syringe composed of polymer layers and nanoparticles may provide drug delivery that targets diseased cells without harming the rest of the body, according to a team of chemical. . (Science Daily)
The surface chemistry of silicon nanopillars can be tuned by depositing a layer of some other material, such as silicon dioxide or Teflon-like fluoropolymer, on top of the pillars ... By contrast, Teflon-like polymers are hydrophobic or water-repellent, which makes a water droplet on a Teflon-like polymer layer ball-shaped, and it typically rolls easily off the surface ... Therefore nanopillars coated with silicon dioxide are extremely hydrophilic, whereas those coated with teflon-like polymer... (Science Daily)
In its first decade of work, a research effort at the National Institute of Standards and Technology (NIST) to develop novel and improved "combinatorial" techniques for polymer researchan effort that became the NIST Combinatorial Methods Center (NCMC)realized economic benefits of at least $8 ... RTI surveyed and interviewed polymer scientists at NCMC member institutions, as well as from the much larger body of research universities and chemical companies who benefited from the center's... (EurekAlert! -- Business News)
These are polymer capsules in which liposomes have been embedded to form subcompartments. Currently, the primary type of nanotransporter used for drugs is the capsule: Polymer capsules form stable containers that are semipermeable, which allows for communication with the surrounding medium ... First, a layer of polymer is deposited onto small silica spheres. (Science Daily)
"In biomass like wood, corn stover and switchgrass, cellulose is the most abundant polymer that researchers are trying to convert to biofuels and plastics," said chemist Z. Conrad Zhang, who led the work while at PNNL's Institute for Interfacial Catalysis. HMF, also known as 5-hydroxymethylfurfural, can be used as a building block for plastics and "biofuels" such as gasoline and diesel, essentially the same fuels processed from crude oil. (EurekAlert!)
Ho and colleagues previously developed a polymer patch that could be used to deliver chemotherapy drugs locally to sites where cancerous tumors have been removed ... 17, 2006) MIT scientists are reporting synthesis and laboratory tests of a promising new group of degradable polymer delivery vehicles for gene therapy ... The polymers are improved versions of materials first. (Science Daily)
CSIR Polymers ramics Manager Dr Sean Moolman, who headed the research team, said that the technology was licensed to Container Corp in 2006 ... This is the number from one to seven, surrounded by arrows, which identifies the type of polymer used to make the bottle ... Most plastic packaging is made from one of six polymers (polyethylene terephthalate, high density polyethylene, polyvinyl chloride, low density polyethylene, polypropylene, or polystyrene). (iAfrica.com)
Necsa, through its fluorochemical technology division, Peldev, and its fluorochemical manufacturing and sales unit, Pelchem, produces a range of fluorine-based products for application in the detergent, metallurgical, mining, petrochemical, polymer, semiconductor and water treatment markets. Even though South Africa abandoned its nuclear programme in the early 1990s, production of hydrogen fluoride continues to be located within Necsa due to technical expertise. (Business Report, South Africa)
ScienceDaily (May 15, 2009) Scientists in Germany and India are reporting development of a new polymer that reduces the amount of radioactive waste produced during routine operation of nuclear reactors ... The polymer's high selectivity increases its appeal, the researchers add, for use in decontamination processes in reactors that utilize a variety of structural materials ... Bhaskarapillai et al. Synthesis and Characterization of Imprinted Polymers for Radioactive Waste Reduction. (Science Daily)
ScienceDaily (May 14, 2009) Parachute cords, climbing ropes, and smart coatings for bridges that change color when overstressed are several possible uses for force-sensitive polymers being developed by researchers at the University of Illinois ... The polymers contain mechanically active molecules called mechanophores ... In previous work, Sottos and collaborators showed they could use mechanical force to induce a reaction in mechanophore-linked polymers that were in solution. (Science Daily)
A polymer containing a color-changing molecule called a mechanophore turns red seconds before it snaps ... When a polymer containing a color-changing molecule called a mechanophore is about to break, it also produces a color ... Similarly, when a polymer with mechanophore molecules becomes injured or weak, one of the mechanophore bonds breaks and the material turns red. (Science News for Kids)
(PRWEB) May 15, 2009 -- Kinovate Life Sciences, Inc, the market leader in solid support for oligonucleotide synthesis, will be announcing the successful development of its next generation high loading polymeric solid support product NittoPhase HL for oligonucleotide synthesis at the TIDES meeting commencing in Las Vegas on May 17th ... Through utilization of the unparalleled polymer synthesis and Rbilities of Nitto Denko Corporation, and the worldwide marketing and customer support operations of... (Yahoo News -- Press Releases)
G-CNTs are also ideal candidates for use as electrodes in polymer solar cells, one of Yang's main research projects. One of the benefits of polymer, or plastic, solar cells is that plastic is flexible. (EurekAlert!)
Recent advances in materials science and polymer chemistry will help design the robots' membranes, semi-permeable barriers that let chemical payloads out or signalling molecules in. They will be made either of tough silica - effectively sand shaped for the purpose - or hydrogels, squishy water-absorbing polymers that are not so unlike the membranes surrounding our own cells. (BBC News -- Science)
20, 2008) The next generation of electric and hybrid cars may be a step closer thanks to new and improved polymer membranes that allow the development of bigger, safer, and more powerful lithium ion batteries. (Feb. (Science Daily)
Polymer chemists have created a flexible, indestructible material, called metal rubber, that can be heated, frozen, washed or doused with jet fuel. . (Science Daily)
Mr Clough and his team are behind the RadBall, or radiation ball, made from a polymer material that becomes opaque when exposed to radiation. To nuclear decommissioners, who are working to clean up the mess left behind from half a century of nuclear weapons and energy production, the RadBall could soon become a vital tool. (BBC News -- Business)
Researchers have created a "smart " polymer that could decrease radioactive waste at nuclear power plants ... New "smart" polymer reduces radioactive waste at nuclear power plants Industrial eering Chemistry Research ... Scientists in Germany and India are reporting development of a new polymer that reduces the amount of radioactive waste produced during routine operation of nuclear reactors. (EurekAlert!)
Storm drains fitted with a spongy material -- a synthetic polymer similar to those used in diapers -- can catch household pollutants such as paint. . (Science Daily)
But even gDiapers have been slammed by some environmentalists for using an absorptive chemical called a superabsorbent polymer to keep the pee - or most of it - inside. Presumably, that was the crystalline stuff I found on the toilet seat after one especially clumsy flush. (Boston Globe)
Bhatia's team developed a polymer coating for the particles that allows them to survive in the bloodstream longer than any other gold nanoparticles (the half-life is greater than 17 hours). In designing the particles, the researchers took advantage of the fact that blood vessels located near tumors have tiny pores just large enough for the nanorods to enter. (Science Daily)
As a polymer chemist, Grunlan uses her knowledge of biomedical properties to help create scaffolds for the tissue-engineering experiments. "I can define the scaffolds. I can tailor properties," Grunlan said. (The Battalion, TX)
A Michigan State University chemical engineer has discovered that nanoparticles can stop thin polymer films from buckling and. (Feb. (Science Daily)
Using densely-loaded nanoparticles made of a biodegradable polymer known as PLGA, the researchers created a stable "time release" vehicle for delivery of siRNAs to sensitive mucosal tissue like that of the female reproductive system. They found that the particles, loaded with the drug agent, moved effectively in two important ways, penetrating to reach cells below the surface of the mucosa and distributing throughout the vaginal, cervical, and uterine regions. (EurekAlert!)
Aya Sullivan, 5, experimented by adding water to different polymers to test the absorbency of various diaper brands in her project, The Moisture Holding Power of Diapers. Sullivan said she was really surprised to see how a small about amount of polymer could hold a cup full of water. (Lincoln Journal, MA)
Self-healing' Polymer May Facilitate Recycling Of Hard-to-dispose Plastic ... Self-healing' Polymer May Facilitate Recycling Of Hard-to-dispose Plastic ... The scientists showed in laboratory tests that they could melt granules of what they term a "self-healing" polymer and reform them into uniform, rigid plastic bars. (Science Daily)
"We are creating chemical changes in microscopic patterns that will generate higher reflectivity when read by a low-power laser," said Brian Lawrence, manager of GE's Integrated Polymer Systems Lab (Niskayuna, N.Y.). "We created a material in which the refractive index can be changed when exposed to high laser power.". (EETimes)
Macromolecules Made from Activated Intermediates: Kinetic Energy Starts Reactions and ATP Is Used to Polymerize ... Kinetic Energy Starts Reactions and ATP Is Used to Polymerize ... Polymers are Made of Monomers. (Suite101.com)
They developed a new antimicrobial polymer that includes a type of N-halamine ... Laboratory tests showed that the new polymer kills a wide range of disease-causing microbes including those resistant to multiple antibiotics. (EurekAlert!)
Researchers at the Max Planck Institute for Polymer Research. (June 25, 2003) Dutch researcher Chris Molenaar has made the rapid movements of proteins, DNA and RNA molecules visible in living cells. (Science Daily)
Achieving lambda/20 Resolution by One-Color Initiation and Deactivation of Polymerization ... 2, 2007) Producing three-dimensional polymer line structures as small as 65 nanometers wide just became easier with new two-photon absorbing molecules that are sensitive to laser light at short wavelengths. (Science Daily)
17, 2009) A collaboration between researchers at the University of Surrey s Advanced Technology Institute (ATI) and the School of Physics at Trinity College Dublin have discovered that you can produce a composite of carbon nanotubes embedded in a polymer that gives outstanding performance as an electron emitter material ... Carbon nanotubes are rolled up sheets of carbon atoms a few billionths of a meter in diameter and the results of this study, recently reported in the journal Small, show that... (Science Daily)
When produced in bulk, these microscopic sheets can be "painted" onto a surface or combined with a polymer to let it conduct electricity. Nanotubes have been used for that purpose already. (EurekAlert!)
"To be beneficial to the environment, a polymer [plastic] should disappear completely. In biodegradation this means a natural conversion to CO2 and water," explained Bruno de Wilde, lab manager at Organic Waste Systems (OWS), a Belgium consulting company that tests and certifies the biodegradability of consumer products and packaging. Not certified. (allAfrica.com)
Carbon nanotubes are placed on a substrate, then coated with a polymer film ... The film is easily peeled off from the substrate, taking along all the nanotubes and exposing the thin strip of polymer-free surface on each of them ... The ribbons can easily be removed from the polymer film and transferred onto any other substrate, making it easy to create items such as graphene transistors, which may hold promise as a way to possibly make high performance electronic devices. (EurekAlert!)
A polymer encased in recycled paper bonds to positive ions in soil to form clumps. . (Science Daily)
The researchers have created a line of patented foam-like and environmentally friendly polymers, called clay aerogel composites that can take on the shape and size of any container that can hold water from ice cube trays to rubber ducky molds to clam-shell packaging molds that hold and ship electronics ... After Schiraldi came to the university in 2002 and had a graduate student trained and ready by 2004 to take on an "extra unfunded project," Schiraldi's lab began making these new kinds of... (EurekAlert! -- Business News)
14, 2009) Our modern age has become accustomed to regular improvements in information technology, says Slava Rotkin, but these advances do not come without a cost. Take the laptop, for example. (Science Daily)
14, 2009) Researchers at the Universitat Jaume I (UJI) in Castell;n have found porous polymeric materials that increase the efficiency of traditional photocatalysts in the treatment of cancer ... We have found porous polymeric materials and we have incorporated the photocatalyst into these materials and we have shown that they are more effective than the non-porous materials that have been employed up until now, explains Luis ... When there is no light or when there is no photoactive polymer,... (Science Daily)
Over the past ten years or so, most research has focused on developing organic cells in which the active light-absorbing material is made up of long conjugated polymer chains. Although these cells are the most efficient yet discovered, the use of polymers poses a certain number of problems: synthesis, purification, control of the molecular structure and mass, and the distribution of different lengths of chain (polydispersity) ... In order to overcome these obstacles, Jean Roncali's team of... (Science Daily)
Researchers led by Dr. Nicholas Leventis, a professor of chemistry at Missouri S&T, reported in the April 8 Journal of the American Chemical Society that they created a new type of flammable nanomaterial by combining an oxidizer (copper oxide) with an organic fuel (a resorcinol-formaldehyde polymer, or RF). Nanomaterials are made from substances that are one billionth of a meter the size of a few molecules. (Science Daily)
Polymer Energy(tm) Plastic Waste to Fuel Conversion Plants -- Completed installation and commissioning of a Polymer Energy(tm) plant in Rayong, Thailand ... We also continue to make progress with our Natur-Tec(tm) bio-plastic products as well as Polymer Energy(tm) plants, and trimmed our operating expenses by almost 30%,'' said G. Patrick Lynch, NTIC President and Chief Executive Officer. (Primezone Releases)
8, 2009) A method for creating dispersed and chemically modified graphene sheets in a wide variety of organic solvents has been developed by a University of Texas at Austin engineering team led by Professor Rod Ruoff, opening the door to use graphene in a host of important materials and applications such as conductive films, polymer composites, ultracapacitors, batteries, paints, inks and plastic electronics. See also. (Science Daily)
Alessio Piermattei, Dr. Karthik Sivasubramanian and Dr. Rint Sijbesma) of the Institute for Complex Molecular Systems (ICMS) and the Department of Chemical Engineering and Chemistry, both at TU/e, is the first to have demonstrated that a catalyst can be switched from a dormant to an active state by pulling on a polymer chain, a "molecular ripcord." The researchers were able to use this catalyst to initiate a variety of chemical reactions, including polymerizations (formation of polymer chains... (Science Daily)
Crazing is common in certain types of thermoplastic polymers, but very unusual in the type of epoxy composite we used, Koratkar said ... 8, 2006) Vistasp Karbhari, a professor of structural engineering at UC San Diego, has developed fiber-reinforced polymer composites as strong, lightweight materials for aerospace, automotive, civil and marine. (Science Daily)
The microbes are encouraged to collect exotic materials - cobalt oxide and gold - and because the particles are negatively charged, they can be formed into a dense, virus-loaded film which acts as an anode and "grows" on a polymer separator. Researchers, including MIT Professor Gerbrand Ceder and Associate Professor Michael Strano, have now developed a highly powerful cathode. (BBC News -- Science)
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