The technology relies on the fact that a DNA base, or a combination of bases on a DNA strand creates a characteristic disruption in a current as it passes through the nanopore. Electrodes measure the change in current flow as DNA molecules are fed through protein nanopores; an electrical gradient drives the DNA through the pore, while molecular "controllers" attached to the molecules mechanically slow them down so that their electrical signals may be recorded.
This approach has two important advantages.
First, the system is compact and doesn't require a supply of expensive reagents. That means sequencing can come out of the lab, making it useful for personalized medicine or for use in resource-poor clinics. Indeed, the disposable sequencer the company is about to introduce is the size of a USB memory stick.
Second, the technology reads much longer stretches of DNA than other rapid sequencing approaches, which means it has the potential to be better at spotting important "structural variants" related to disease. These variants occur when a whole segment of chromosome is moved, inverted, duplicated, or otherwise changed. When DNA is chopped into shorter stretches to be sequenced and then put back together on a computer, it is easier to miss, or misinterpret, such variants.
Kilobot, a robot designed to make testing collective algorithms on hundreds or thousands of robots accessible to robotics researchers. To enable the possibility of large Kilobot collectives where the number of robots is an order of magnitude larger than the largest that exist today, each robot is low cost and takes only a few minutes to assemble. Furthermore, the robot design allows a single user to easily oversee the operation of a large Kilobot collective, such as programming, powering on, and charging all robots, which would be dificult or impossible to do with many existing robotic systems. We demonstrate the capabilities of the Kilobot as a collective robot, using a 29 robot test collective to implement some popular swarm behaviors.
A new face recognition ad will only reveal its full contents to women. It uses a "high-definition" camera to scan people's faces, detecting their gender with an apparent 90 percent success rate. The charity, Plan UK, is looking to raise funds to sponsor education for girls living in developing countries; the outdoor display will run the full advert for female viewers, while men will get a brief glimpse followed by directions to the charity's website. It's aiming to demonstrate the limits put on young women in some countries -- and is a pretty admirable use of facial recognition technology. Well, it's not withholding pudding from minors. Check the bus display in action on the streets of London right after the break.
The manufacturers’ fear is palpable and it’s time this parade of phones, designed to mimic one major phone, stopped. It’s bad for the consumer, it’s bad for the carrier, and it’s bad for the manufacturer.
The control board seen in the foreground has an edge connector which mates with a Wii classic controller connector. This is what you use for flight control. But there’s even more. The pinheader just visible on the left side of the controller mates with a socket on the ‘copter board. This allows you to sync the two so that there’s no radio frequency interference, and recharge the batteries from a USB connection. Speaking of those wireless communications, [Frank] chose to use an ATmega128RFA1. This is a newer microcontroller from Atmel that has a radio built into it. Add a gyroscope sensor and some motor control and you’re in business.
A piece of hardware called Somniloquy is the reason this system works. The USB device, which acts like a smarter version of an ordinary network card that connects a computer to the Internet, can wake a sleeping computer and retrieve data from it before powering it back down. It has its own low-power processor and a few gigabytes of storage to cache files sent its way while a computer wakes up.
MinION is a disposable device that contains a sensor chip, ASIC and the fluidics system that are needed to perform a complete single molecule sensing experiment. Plugging directly into a laptop or desktop computer through a USB port, it is a self contained device to deliver real time experimental data.
The MinION is adaptable for DNA sequencing, protein sensing and other nanopore sensing techniques.
This past week, researchers in Cambridge -- alongside scientists from MicroCHIPS, Inc. -- announced that they have successfully used the aforementioned chip to give osteoporosis patients their daily allotment of teriparatide. "You can do remote control delivery, you can do pulsatile drug delivery, and you can deliver multiple drugs,"
LUFA (Lightweight USB Framework for AVRs, formerly known as MyUSB) is my first foray into the world of USB. It is an open-source complete USB stack for the USB-enabled Atmel AVR8 and (some of the) AVR32 microcontroller series, released under the permissive MIT License (see documentation or project source for full license details). The complete line of Atmel USB AVRs and USB AVR boards are supported by the library, as are any custom user boards, via custom board hardware drivers supplied by the user.
The Android application that makes use of the USB API A simple Android app that let’s you regulate the brightness of an LED on the Arduino using a slider. It also features a button to “enumerate” the USB device.
Firmware for the Arduino that does some serial I/O with the Android app Very basic firmware for the Arduino. An interrupt is generated when a new byte is received. The received data controls the brightness of the Arduino’s on-board LED. (implemented via usleep-style software pwm in the main loop).
iRobot Corp., makers of the beloved Roomba (and a lot more), announced that it would be investing $6 million in InTouch Health, a telemedicine company operating in 80 hospitals around the world. Though $6 million represents just a minority stake in the company, it’s--needless to say--a substantial investment, and a strong expansion of a joint development and licensing agreement the two companies had announced last summer.