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1. Controlair flow arduino manual#
2. Controlair flow arduino skin#
3. Controlair flow arduino full#
4. Controlair flow arduino software#

Proof-of-concept testing demonstrated that the applied pressures can be varied in the desired sequence and to redistribute pressure. The microfluidic chip largely reduced the number of electromechanical solenoid valves needed for sequential control of 10 actuators (2 instead of 10 valves), resulting in the reduction of the required power, size, mass, and cost of the control box toward an affordable and wearable prosthetic socket. The core of the technology is a small air microfluidic chip (10 cm3 and 10 g) with 10 on-chip valves that enable sequential pressurizing of 10 actuators in custom sizes to match the pressures required by the residual limb's unique anatomy. We introduce a novel proof-of-concept for a transtibial prosthetic socket liner with the potential to dynamically adjust the fit between the limb and socket. Self-management of socket fit is complicated by peripheral neuropathy, reducing the perception of pressure and pain in the residual limb.

Controlair flow arduino skin#

Residual limb volume fluctuation and the resulting contact pressures are some of the key factors leading to skin ulcerations, suboptimal prosthetic functioning, pain, and diminishing quality of life of transtibial amputees. This cost-effective, highly customizable pump kit should find use in lab-on-a-chip, organs-on-a-chip, and point-of-care microfluidic applications.

The pumps exhibited good repeatability in flowrates and functioned inside a cell incubator (at 37 ☌ and 95 % humidity) for seven days without noticeable issues in the performance. To demonstrate the forward compatibility, we developed a flowrate calibration tool that was readily interfaced with the developed pump system. This kit was designed with modular components (i.e., each component followed a standardized unit) to achieve (1) customizability (users can easily reconfigure various components to comply with their experiments), (2) forward compatibility (new parts with the standardized unit can be designed and easily interfaced to the current kit), and (3) easy replacement of the parts experiencing wear and tear. The assembled pumps offered a flowrate of 0.02 – 727.3 μL/min, and the smallest pump assembled with this kit was 20 × 50 × 28 mm. We demonstrated fabricating two variants of pumps with different sizes and operating flowrates using the developed kit. Herein, we developed a cost-effective kit to build a micro-peristaltic pump (approximately 50 USD) consisting of 3D-printed and off-the-shelf components. These results can lay the foundation for the functional, fast, and low-cost programmed mini-pump in PCR or other applications for trace measurements.Ĭommercially available peristaltic pumps for microfluidics are usually bulky, expensive, and not customizable.

Controlair flow arduino manual#

The results proved that the custom-made three-dimensional programmed mini-pump has a stronger reproducibility compared with manual pipette (ORF1ab: 24.06 ± 0.33 vs. Besides, the contrast test between three-dimensional programmed mini-pump and manual pipette was conducted with the ORF1ab and pGEM-3Zf (+) genes in qPCR. With the weighting calibration before and after pipetting operation, the error of the pipette in 10 μL (0.2%), 2 μL (1.8%), and 1 μL (5.6%) can be obtained. In view of the cost of the current automatic pipetting pump being higher, which is difficult to use in a regular lab, this paper designed and assembled a three-dimensional programmed mini-pump with the common parts and components, such as PLC controller, motor, microinjector, etc. Programmed mini-pumps play a significant role in various fields, such as chemistry, biology, and medicine, to transport a measured volume of liquid, especially in the current detection of (COVID-19) with PCR. µPump provides researchers, students, and startups with a cost-effective solution for precise fluid control. µPump can be used for two-phase droplet microfluidics, single-phase microfluidics, gaseous flow microfluidics and any other applications requiring precise fluid handling. The design rationale is presented, together with documented design details and software, so that the system may be replicated or customized to particular applications.

$5000 USD) is approximately a quarter, or a third of the cost of buying a high-end commercial system, respectively. $3000 USD) or an eight-channel µPump (approx. Material for building a four-channel µPump (approx. The settling time to reach 2 bar from zero and stabilize is less than 2 s.

Controlair flow arduino full#

The pressure accuracy, stability, and resolution are 0.09%, 0.02%, and 0.02% of the full span, respectively. This mechatronic system is coined ‘µPump,’ and its performance rivals that of commercially available systems, at a fraction of the cost.

Controlair flow arduino software#

An open-source precision pressure pump system and control software is presented, primarily designed for the experimental microfluidics community, although others may find additional uses for this precision pressure source.