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electrons in Medical News

Physics research with atomic force microscope could lead to better health care

...t if scientists can pattern the surface in the way they like, another application might be tiny electric circuits and lenses that guide, respectively, electrons and photons. Also, using an atomic force microscope in this way, he said, physicists can not only change the chemical properties of the surface but th...

ORNL finding could help electronics industry enter new phase

... used for piezoactuators, memory devices and RFID (radio-frequency identification) cards. "It is as if we open a tiny door in the polar surface for electrons to enter," Maksymovych said. "The size of this door is less than one-millionth of an inch, and it is very likely taking only one-billionth of a second...

.decimal, Inc. Gains 510k Clearance from the FDA to Market its p.d(TM) Software for Bolus Electron Conformal Therapy in the United States

...lable until this software release. "With this product we are enabling the 80% of radiation oncology facilities in the United States treating with electrons the opportunity to enhance their current electron delivery capabilities through our unique pay-as-you-go, Internet-based manufacturing business model,...

Stanford researchers harness nanoparticles to track cancer-cell changes

... comprising wavelengths slightly different from the single-color beams that lasers emit. These patterns, or Raman signals, occur when energy levels of electrons are just barely modified by weak interactions among the constituent atoms in the molecule being inspected. Raman signals are emitted all the time b...

K-State engineers create DNA sensors that could identify cancer using material only one atom thick

...e most significant feature of graphene is that the electrons can travel without interruptions at speeds close t... about 450 degrees below zero Fahrenheit -- to get electrons to move at ultra high speeds." One of Berry's developments is a graphene-based DNA sensor. When electrons flow on the graphene, they change speed if they en...

April Rain is Protecting Skin with The Launch of Day Rainew

...e radicals are everywhere and are a key component to aging. These unpaired electrons get into cells, causing damage over time and ultimately degenerate natural ...l free radicals and reactive oxygen species (ROS) into thinking their outer electrons are paired - ending their vicious cell-damaging cycle. Antioxidants tak...

Scripps research scientists develop general-purpose method for detecting trace chemicals

...ving and storing electronic charges in logical circuits. These same basic operations can also be accomplished biologically, using molecules instead of electrons as the basis of the logical circuitry. Self-replicating RNAs that are triggered by target chemicals could provide the functional basis for some of the...

What the Billion Dollar Beauty Industry Does Not Want Leaked: That One Can Actually Reverse Aging for Free by Moving Only to the Right. We Smell a Nobel.

...ly accepted that tiny particles called Atoms "make-up" Everything, and that electrons revolve around atoms in a rather Haphazard manner. Eternal Youth Empire di...ago that for some Reason, whenever anything organic decomposes or ages, the electrons that once rotated Randomly quite suddenly organize Themselves in an orderly...

Molecular imaging enables earlier, individualized treatment of thyroid cancer

...up by any thyroid tissue not removed by surgery, including cancerous cells spreading to other body parts, such as lymph nodes. In addition to emitting electrons that destroy the tissue harboring the radionuclide, radioactive iodine emits photons suitable for imaging. "Normal thyroid tissue as well as residu...

Young voters challenge presidential candidates to address science issues

...udent Pugwash USA's website, www.spusa.org . Student Pugwash USA sponsored the contest as part of the organization's 2008 election resource, From electrons to Elections. The online guide, available at www.spusa.org/2008vote , is a non-partisan resource designed to educate young voters on science, techno...
electrons in Medical Technology

Battelle Scientists Named on Patent for Making Oxygen From Light and Water

...which a PDEC device could make oxygen. In order to work, PDEC relies on a photochemical reaction that uses a special catalyst that takes protons and electrons from water and makes molecular oxygen without producing hydrogen gas. Then, the protons and electrons can be used for other purposes, such as trapping...
electrons in Medical Products

QuantiFIRE 4-Megapixel Thermoelectrically-Cooled Digital Microscope Camera

Features:... 4-Megapixel Imaging with a large format 21.4mm CCD Array of 2048 x 2048 pixels at 7.4 x 7.4 microns @ 40,000 electrons per pixel. 12-Bit CCD Monochrome Imaging Live Frame Averaging with Motion Compensation. Live Gamma, Brightness and Contrast Control. Autom...
Company:Optronics

MacroFire Monochrome Digital Microscope Camera

Features:... 4-Megapixel Imaging with a large format 21.4mm CCD Array of 2048 x 2048 pixels at 7.4 x 7.4 microns @ 40,000 electrons per pixel. 12-Bit CCD Monochrome Imaging Live Frame Averaging with Motion Compensation. Live Gamma, Brightness and Contrast Control. A...
Company:Optronics

MacroFire Digital Microscope Camera

Features:... 4-Megapixel Imaging with a large format 21.4mm CCD Array of 2048 x 2048 pixels at 7.4 x 7.4 microns @ 40,000 electrons per pixel. 12-Bit CCD Imaging Live Frame Averaging with Motion Compensation. Live Gamma, Brightness and Contrast Control. Optronics Exclusive Pict...
Company:Optronics
electrons in Biological News

Jet-propelled imaging for an ultrafast light source

...The Linac Coherent Light Source (LCLS) will soon begin operation at the SLAC National Accelerator Laboratory in Palo Alto, California, using energetic electrons from a linear accelerator to produce coherent x-rays with an instrument called a free electron laser (FEL). The x-rays will be delivered 120 times a s...

Researchers create freestanding nanoparticle films without fillers

...for this purpose. As transistors have shrunk, however, they have been forced to make this layer thinner and thinner until they reached the point where electrons leak through and sap the power from the device. This has led semiconductor manufacturers to retool their process to use "high-k" dielectric materials,...

Sulphur in just one hair could blow a terrorist's alibi

...f Oviedo, Spain, have come up with a method to detect how the proportions of isotopes in a chemical element (atoms with an equal number of protons and electrons but different numbers of neutrons) vary throughout the length of a single hair. The mid-term objective is to be able to use these methods to track the...

Healing wounds with lasers, vehicles that drive themselves, other cutting-edge optics

...t technology, which sometimes goes by the name "streak camera." Because the electrons comprising the beam are charged particles, the signals they carry suffer un...ge, 3000:1. In his camera, the beam being deflected consists not of charged electrons but of uncharged photons, which do not suffer from the limitations of conve...

Milestone in live microscopy focus of $2 million NIH grant

...rather than taking static photos like their predecessors, DTEMs capture processes in real time by using a pulsed laser to produce very short bursts of electrons to illuminate specimens. In order to create the third-generation TEM, which Browning and his team are calling a "Bio-DTEM," three new elements must...

Pliable proteins keep photosynthesis on the light path

...ter proteins during photosynthesis facilitates the light-driven movement of electrons between molecules in the reaction center, helping the plant or bacteria to ...he proteins were able to compensate by moving and energetically guiding the electrons through their biological circuit. "One of our research strategies is to i...

DOE funds bio-inspired solar fuel center at Arizona State

...rce of electrons, and the most promising source of electrons on a large scale is water. For more than 2.5 billi...ve been harvesting sunlight and using it to remove electrons from water and produce biological fuels. This proc...ochemical catalysts that use this energy to remove electrons from water molecules and employ them to make fuels...

Cheap and efficient white light LEDs new design described in AIP's Journal of Applied Physics

...ectrodes. When an electric current is sent through the wafers, it liberates electrons from the atoms therein, leaving behind vacancies or "holes." When some of the wandering electrons and holes recombine, they create a parcel of light, or photon. These photon...

GOCE's electric ion propulsion engine switched on

...et motor. Instead, it is supplied with xenon from a 40-kg tank, which is converted to fast-moving ions - naked xenon atoms that have had some of their electrons stripped away by an electric discharge generated from solar energy. The ions are ejected toward the rear, giving a very gentle, steady and smooth thru...

Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications

... close to one another that they are within a few atomic diameters, then the electrons can actually leak from one electrode to the other, because in quantum mecha...ntum tunneling seems exotic, Lindsay points out that the routine leaking of electrons from one atom to another to form a chemical bond is a similar process. ...
electrons in Biological Technology

Latest issue of Science: Nanosonar uses electrons to measure under the surface

Jlich, 27 February 2009 Just as sonar sends out sound waves to explore the hidden depths of the ocean, electrons can be used by scanning tunnelling microscopes to investigate the well-hidden properties of the atomic lattice of metals. As researchers from Gttingen, Halle and Jlich now report in th...

Latest issue of Science: Nano-sonar uses electrons to measure under the surface

Jlich, 27 February 2009 Just as sonar sends out sound waves to explore the hidden depths of the ocean, electrons can be used by scanning tunnelling microscopes to investigate the well-hidden properties of the atomic lattice of metals. As researchers from Gttingen, Halle and Jlich now report in th...

Ultrafast lasers give CU-Boulder researchers a snapshot of electrons in action

In the quest to slow down and ultimately understand chemistry at the level of atoms and electrons, University of Colorado at Boulder and Canadian scientists have found a new way to peer into a molecule that allows them to see how its electrons rearrange as the molecule changes shape. Understand...

'Racetrack' for fast electrons in semiconductor structures

In order to realize the electrical units of voltage, resistance and current with highest accuracy quantum effects in nano-circuits are nowadays used. Important prerequisites are extremely pure semiconductor layers where high-mobile electrons move through the crystal without collision with residual...

UM physicists show electrons can travel over 100 times faster in graphene than in silicon

COLLEGE PARK, Md. -- University of Maryland physicists have shown that in graphene the intrinsic limit to the mobility, a measure of how well a material conducts electricity, is higher than any other known material at room temperature. Graphene, a single-atom-thick sheet of graphite, is a new mat...

Collaboration yields 'the right glasses' for observing mystery behavior in electrons

LOS ALAMOS, New Mexico, December 13, 2007In collaboration with the Center for Integrated Nanotechnologies at Los Alamos, an international team of researchers has, for the first time, viewed on a nanoscale the formation of mysterious metallic puddles that facilitate the transition of an electricall...

Quantum device traps, detects and manipulates the spin of single electrons

BUFFALO, N.Y. -- A novel device, developed by a team led by University at Buffalo engineers, simply and conveniently traps, detects and manipulates the single spin of an electron, overcoming some major obstacles that have prevented progress toward spintronics and spin-based quantum computing. Pub...

Transistors made from single electrons

Using a vibrating arm less than one-millionth of an inch long and one-thousand times thinner than a human hair, a new transistor toggles on and off through the movement of a single electron. The infinitesimal size and low power requirements of this single electron transistor (SET), created by UW...

Breaking barriers with nanoscale lasers

... supposed limit, Ning says. One way is by the use of a combination of semiconductors and metals such as gold and silver. "It turns out that the electrons excited in metals can help you confine a light in a laser to sizes smaller than that required by the diffraction limit," Ning explains. "Eventually, w...

UCR scientists manipulate ripples in graphene, enabling strain-based graphene electronics

... the local shape of the membrane," Lau said. "For instance, the ripples may produce effective magnetic fields that can be used to steer and manipulate electrons in a nanoscale device without an external magnet." Lau, an associate professor of physics and a member of UCR's Center for Nanoscale Science and...
electrons in Biological Products

NADPH-cytochrome c reductase Colorimetric Assay Kit from Sigma-Aldrich

Description:...ytic NADPH-Cytochrome c reductase (NADPH-cytochrome P450 reductase, EC1.6.2.4) is a flavoprotein localized to the endoplasmic reticulum. It transfers electrons from NADPH to several oxygenases, the most important of which are the cytochrome P450 family of enzymes, responsible for xenobiotic detoxification. N...
Company:Sigma-Aldrich
electrons in Biological Definition

Alcohol

...m . The salts that result are called alkoxides , with the general formula R O - M + . Meanwhile the oxygen atom has lone pairs of nonbonded electrons that render it weakly basic in the presence of strong acids such as sulfuric acid . For example, with methanol: Alcohols can also undergo ...

Diffusion

...teady-state thermal diffusion is governed by Fourier's Law. Diffusion of electrons in an electrical field is essentially Ohm's law . In each, a flux (of ato...rent flows by diffusion in most conductors . Charge carriers (usually electrons ) move randomly in the absence of an electric field . When an electric f...

Electron transfer chain

... that convert the reductive potential of energized electrons into a cross-membrane proton gradient. This proto... the inner mitochondrial membrane and accepts electrons from electron donors such as NADH or succinate , shuttles these electrons from within the mitochondrial matrix across the ...

Enzyme

...e certain neurotransmitters and biologically active amines NADH dehydrogenase : the first complex in the electron transfer chain , transferring electrons from NADH to coenzyme Q Nitrogenase Ornithine decarboxylase : processes ornithine as the first step in the production of polyamines ...

Flavin

... and can accept either one electron in a two step process or can accept two electrons at once. In the form of FADH 2 , it is one of the cofactors that can transfer electrons to the electron transfer chain . FAD Flavin adenine dinucleotide ...

Flavin

... and can accept either one electron in a two step process or can accept two electrons at once. In the form of FADH 2 , it is one of the cofactors that can transfer electrons to the electron transfer chain . FAD Flavin adenine dinucleotide ...

Photosynthesis

...ght ionizes a chlorophyll molecule, releasing two electrons , which are transferred along an electron transpo...energy currency" in cells. In photosystem I, the electrons are returned to the chlorophyll. In photosystem I...g agent in cells, providing a source of energetic electrons to other reactions. This leaves chlorophyll with ...

Light-dependent reaction

...synthetic pigments is used to drive a transfer of electrons and hydrogen from water (or some other donor mole...ducing it to the form of NADPH by adding a pair of electrons and a single proton (hydrogen nucleus). The water ...a biological membrane that transfers high-energy electrons from one to another, accomplishing various activit...

Nicotinamide adenine dinucleotide

...r; NADH + H + + M: + energy, where M is a metabolite. Two hydrogen ions (a hydride ion and an H + ion) are transferred from the metabolite. Two electrons are transferred to the positively charged nitrogen, and one hydrogen attaches to the carbon atom opposite to the nitrogen. The human body sy...

Nicotinamide adenine dinucleotide

...r; NADH + H + + M: + energy, where M is a metabolite. Two hydrogen ions (a hydride ion and an H + ion) are transferred from the metabolite. Two electrons are transferred to the positively charged nitrogen, and one hydrogen attaches to the carbon atom opposite to the nitrogen. The human body sy...
electrons in Biological Dictionary

Redox reaction

... . ... To indicate redox reactions , chemists typically write out the electrons explicitly: ... We can now combine the two (2) half- reactions to form a redox equation: ... We know that in redox reactions , the number of electrons lost by the reducing ... This information is enough to tell us that the re...

Protons

...do you determine how many protons , neutrons, and electrons are in an atom? ... The atomic number is the numbe...tions on how to calculate the number of protons , electrons and neutrons in an atom of any element. ... Addi...g ... Atoms are made up of 3 types of particles electrons , protons and neutrons. ... Neutrons are large a...

Plasma

... In physics and chemistry, plasma is a partially ionized gas, in which a certain proportion of electrons are free rather than being bound to an atom or molecule. The ability of the positive and negative charges to move... Plasma effect, a comput...

Photosystem

... Absorption of 1 photon of light by Photosystem II removes 1 electron from P680. ... Activation of P700 in photosystem I enables it to pick up electrons from the ... ...

Photophosphorylation

...rganisms produce ATP,... Photophosphorylation is the process of creating ATP using a Proton gradient ... During Cyclic Photophosphorylation the electrons are recycled, hence the name ... Definition of photophosphorylation from the Merriam-Webster Online Dictionary with audio pronunciations, thesaur...

Nitrogenous base

... A nitrogenous base is an organic compound that owes its property as a base to the lone pair of electrons of a nitrogen atom. Notable nitrogenous bases include purine bases. Pyrimidine and purine bases include the nucleobases : principally adenine,...

NADPH

...tes oxidative stress and apoptosis caused by TNF-alpha ... It is generated by the NADPH oxidase system, a membrane-bound electron transport ... electrons from NADPH in the cytoplasm across the wall of the phagocytic vacuole ... NADPH oxidase is an enzyme that catalyzes the production of sup...

Light reactions

...rylation, light reactions ) ... With light energy, the P680 passes its electrons on to a high energy ... The light reactions of photosynthesis occur in the grana. ... In the light reactions , excited electrons from chlorophyll flow through a ... Light -Independent Reactions (d...

IS element

...y vehicle from Honda. - - Provides detailed properties for each element . ... We also know an element's chemistry is determined by the way its electrons are ... ...

FADH2

... , it is one of the cofactors that can transfer electrons to ... FADH2 is produced as a prosthetic group...Total 38 ... ... of the energy is in the mighty electrons of NADH and FADH2 . NADH and FADH2 ... For ever...ations.ppt' target='_blank'>Full article >>> The electrons carried by FADH2 have lower free energy and are ...
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