“If we recall that an Ampere corresponds to a charge flow of 1 Coulomb each second and further, use the fact that the charge on a monovalent ion is approximately 1.6 x 10-19 Coulombs (that is 1 electron or 1 proton charge), then we see that a current of about one pA corresponds to roughly 107 ions passing through the channel each second. This value is in agreement with measurements” http://book.bionumbers.org/how-many-ions-pass-through-an-ion-channel-per-second/
Double stranded Lambda DNA (16um long, 48kb). Translocates in 3 different confirmations. Grabbed at the end. Grabbed in the middle (completely folded), Grabbed near an edge (partly folded). Difference in current levels is ~1nS between each confirmation (200pA). 22nm pore is used. Translocation time ~3ms.
Hairpins, P2000 pulled quartz nano-pipette. Using hairpins to encode DNA 8bp and 16bp hairpins.
Meanwell PS45-5 40Watt 5V 8Amp open frame power supply
Astrodyne OFM-0201 5V 4.4 Amp power supply
Spectrometer control board
B&W Tech fiber optic input spectrometer without TE cooling. Internal baffles will have to be removed to get the full spectrometer range, serial port output.
OD6025-05HB 5V ball bearing fan.
Keyswitch (key not included)
Optical beamsplitter with assembly with lenses, beam splitter, fiber couplings
he Biophotonic Scanner is the world’s first measurement device to determine Carotenoid Value in the Skin (SCS) – an instant recording of carotenoid antioxidant activity in your body. By simply placing your hand in front of a faint blue light, you can get your Carotenoid Value in your skin within minutes. The Pharmanex® Biophotonic Scanner Technology is based on an optical method known as Raman Resonance Spectroscopy. This technology has been awarded the Nobel Prize and is used for biological measurements, as well as scientific discipline supported by years of research. Thanks to Pharmanex, technology is now available to everyone. The scanner uses optical signals to measure carotenoid levels in human tissue just below the skin’s surface. These signals identify the specific molecular structure of carotenoids. Pharmanex® is the exclusive holder of the patented Biophotonic Scanner technology. The scanner was developed by physicians and physicists at the top university in the United States
My name is Nava Whiteford. I’ve worked for a few sequencing companies. I have equity in a few sequencing companies based on my previous employment (I try to be unbiased in my posts). You can contact me at: [email protected]