Founding member of Pitt's Biology Department to be honored in Harrisburg, Pa., ceremony
...s, discovered; and the "strong force," which holds protons and neutrons together in the nucleus of an atom, first described. Amid these firsts in the fields of biology and physics, Max A. Lauffer became the chair of the newly created Department of Biophysics at the University of Pittsburgh (now known as the...Targeted drug delivery now possible with 'pHLIP' peptide
...umor cells and sites of inflammation actively pump protons out and create an acid extracellular pH of 5.5 to 6.5. The study shows that pHLIP entry into the cell membrane and the translocation of molecules into cells are not mediated by the usual entry pathways -- endocytosis, interactions with cell receptor...Accumulator ring commissioning latest step for spallation neutron source
...90 percent of the speed of light. In the ring, the protons within a pulse are "accumulated" to increase the intensity 1,000-fold. At that point, this now very intense pulse is extracted and delivered to the mercury target to produce neutrons. This happens 60 times per second. After only three days of its ini...Hi ho silver! FSU physicist helps discover an atomic oddity
...kind of radioactive decay by spitting out two free protons at the same time. Radioactive decay normally invol...es of particle: a helium nucleus consisting of two protons and two neutrons, an electron or a photon. Exotic atoms engineered to contain fewer neutrons than in...New technique helps researchers determine amino-acid charge
...urately detect the association and dissociation of protons to and from individual amino-acid residues in real..., which can acquire a positive charge upon binding protons and become neutral upon releasing them. "One thing is the proton affinity of an amino-acid residue w...A salty tale: New bacterial genome sequenced from ancient salterns
... pump, capturing light energy and using it to move protons across the membrane and out of the cell. In doing so, the protein maintains a balance of ions inside and outside the cell. "It's very unusual to find the two different types of rhodopsin in the same organism," Mongodin says. "S. ruber may have indep...Superconducting magnet attracts molecular research
...iers, said Pochapsky. The electrons, neutrons and protons within the atom have an intrinsic property known as "spin" and within the electromagnetic field created by the magnet, the frequency of the spinning motion of the atoms reveals information about the physical, chemical, structural and electronic chara...'Acid rain' and forest mass: Another perspective
... the compound, thus forming nitrate and liberating protons that acidify the soil. Amongst the effects of the deposition of these compounds on the forest mass are the well-known nutrition disorders of the same. One classic effect is that of cation deficit (particularly magnesium) due to the washing both of th...Scientists discover genetic key to growing hardier, more productive plants
...ts have shown that only the P-type H+-ATPase pumps protons into the space outside the cell to create changes that drive the transport of small molecules in and out of cells. Until now, they believed the AVP1 H+-PPase that Gaxiola's group over-expressed merely controlled pH levels within plant vacuoles, or la...Purdue scientists see biochemistry's future - with quantum physics
...arison with the tinier subatomic particles such as protons and electrons that physicists study. "Despite thes..., just as positive and negative charges do between protons and electrons. Even when you have hundreds of electrons forming an immense cloud around a complex mo...It's electric: Cows show promise as powerplants
... were separated by a special material that allowed protons to move from the negative (anode) chamber into the positive (cathode) chamber. This movement of protons, along with the movement of electrons across the resistor and wire that connects the two electrodes, creates electrical current. The anode chamber...Identifying the 'signatures' of protons in water
New Haven, Conn. -- Free protons from acids associate with 1, 2 or 3 molecules of w...and the University of Georgia. Acids yielding free protons are common in biological and chemical systems and the measurement of pH to determine acidity of an a...Device creates electricity and treats wastewater
...hydrogen meets the anode electrode, it splits into protons and electrons, with protons going across the membrane to the cathode chamber, and electrons passing over the wire between electr...'Wet' electrons provide easiest way to transport charge, Pitt researchers find
...arch also could illuminate the interaction between protons and electrons in such biological processes as phot...to chemical energy through correlated transport of protons and electrons, which Petek calls similar to a wet electron system "on a fundamental level." Petek pl...Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
...detects and analyzes signals given off by hydrogen protons in water molecules after they are exposed to a mag...he magnetic field in its proximity, causing nearby protons to give off a distinctly different signal. The resulting image reveals dark areas that indicate the ...Intervention cuts nerve damage, boosts life span
...e the proton gradient is sufficiently established, protons begin to flow back across the membrane through a s...drial uncoupling proteins (UCPs) allow some of the protons to leak into the matrix, thus disrupting the electrochemical gradient and partially "uncoupling" pro...Diabetic damage to eyes, heart, nerves, kidneys may be explained by controversial theory
...orm NAD into NADH when they transfer electrons and protons from the sugar glucose to NAD during an energy-making process called glycolysis. This process doesn't require oxygen, but it needs NAD to get started. Cells therefore make it a top priority to keep high amounts of NAD available. "The ratio ...ORNL system eliminates perchlorate, helps scientists trace source
...ue of the oxygen-17 isotope (an oxygen atom with 8 protons and 9 neutrons in the nucleus) but a lower chlorine-37 value (a chlorine atom with 17 protons and 20 neutrons in the nucleus). A report on the study appears in the current edition of Env...