Asif Noorani, the founder of Dr. Cell Phone, a chain of repair shops in Texas, has also seen one iPad.
FORBES: iPad's Screen Cracking Far Less Than iPhone's So Far
Dr Thomas said sickle cell has suffered from a low profile and poor understanding among clinical staff.
Using this technique doubled the efficiency of Dr Kamat's cell from 5% to 10% at ultraviolet wavelengths and he reckons it would create similar increases in efficiency in both plastic and dye-based cells.
But Dr Muraro believes that the stem cell approach has real potential.
Dr Keisuke Kaji, a stem cell researcher at the Medical Research Council Centre for Regenerative Medicine in Edinburgh said the technique was a "great advance" in cell reprogramming technology.
"Any adult stem cell scientist is disadvantaged, and that's because there is a deliberate focus to fund embryonic stem cell research and a focus away from adult stem cell research, " Dr. Deisher said.
Dr. Curt Freed, a stem cell researcher from the University of Colorado, suggested the outcome could have been worse for such research.
Dr. Gershon, professor of pathology and cell biology at Columbia, has been studying how the gut controls its behavior and that of other organs by investigating the neurotransmitter serotonin.
Dr Zettl and his colleagues constructed their memory cell by taking a particle of iron just a few billionths of a metre (nanometres) across and placing it inside a hollow carbon nanotube.
But even if it does work (and Dr Hellerstein has yet to prove that reduced cell division translates into longer life) the temptations of life may prove just too much for wannabe Methuselahs.
Dr Lorenz Studer, head of the Stem Cell and Tumor Biology Laboratory at the centre, and the lead researcher on the study, told BBC News Online that the study was "proof of principle" that cloned embryonic stem cells could be reliably transformed into a variety of useful cell types.
Dr Thomas said the majority of people with sickle cell disease can lead active lives, provided they receive the right expert support.
Under a defence contract, Dr Claus's laboratory is testing a photovoltaic cell constructed from films of polymer and ceramic which feels as flexible and hardy as cloth.
According to Dr Rattan, such interventions improve the function of a cell over time, and in doing so, may produce clinical benefits such as protection against neurodegenerative diseases.
Dr Alison Streetly, a medical advisor to the Sickle Cell Society and director of the NHS Sickle Cell and Thalassaemia Screening Programme, welcomed the study, and hoped it would help to raise awareness.
Obama's order directs the NIH to develop revised guidelines on federal funding for embryonic stem cell research within 120 days, according to Dr. Harold Varmus, president of Memorial Sloan-Kettering Cancer Center and co-chairman of Obama's science advisory council.
Project ALS originally funded Dr. Gage several years ago in hopes of developing stem cell treatments for ALS, work that is still ongoing.
Last year Dr Benenson's team developed one of the most complex cell-based molecular circuits created so far, though it is still much simpler than systems built in test tubes.
Dr Kamat and his team covered the surface of an experimental cell made of cadmium sulphide, zinc oxide and titanium dioxide with nanotubes, so that the tubes stuck up from the surface like hairs.
While cloning stem cells is a technical breakthrough, there's already a method of deriving embryonic-like stem cells that doesn't require the use of embryos at all: induced pluripotent stem (IPS) cells, said Dr. George Daley, who is director of the Stem Cell Transplantation Program at Children's Hospital Boston and an international expert in stem cells.
Dr Michael West is another leading figure in the field of stem cell research.
To maintain the critical temperature, Dr Zheludev uses a small electronic heat pump known as a Peltier cell.
Dr. Patterson spent two hours talking to Moussaoui in his jail cell in 2002, when the court first asked him to assess Moussaoui's mental competence, and another five hours over two days last December.
Though the artificial Golgi Dr Linhardt and his team have designed is much bigger than a cell, it is still small by the standards of human engineering, being built on what is known as a digital-fluidics chip.
"There's an incredible amount of research and a very large sum of venture capital and private investment going into the field, " says Dr. Amit Patel, a cardiac surgeon and director of Cardiac Cell Therapy at the University of Pittsburgh Medical Center.
The researchers' combinatorial technique was not to make a separate cell on the wafer for each combination of precursors, as Dr Xiang did.
"The cell kicks out foreign DNA, " said Harvard's Dr. Church.
Dr Denk, for example, tracks the myriad branches of a single nerve cell using an enzyme from horseradish.
Dr Claus has already used this process to make a flexible kind of photovoltaic cell, made from alternating polymer and ceramic layers, that can be sewn on the outside of a tent.
Constant cell phone use could "stress out the ulnar nerves, " said Dr. Leon Benson, an orthopedic surgeon and spokesman for the American Academy of Orthopaedic Surgeons.
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