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− | <p>In order to combine the project and the progress of the experiment, we designed the | + | <p>In order to combine the project and the progress of the experiment, we designed the expired drugs recycling and degrading device(Drug Avenger) and the fluorescence detection device in the hardware part.<br><br>Expired drugs recycling and degrading device(Drug Avenger) was used to collect and recycle expired drugs. The initial modular design allowed for the recovery of three types of drugs, and we designed and implementated the detection and processing module for ciprofloxacin. Fig. 2. and animation show the design and theoretical concept of a special CIP detection module.</p> |
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− | The fluorescence detection device | + | The fluorescence detection device was used to specifically detect the CIP concentration, and was assembled by a switching power supply, water pumps, capture card, photodetector, and an external device. |
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− | <p>In the development process of hardware, our detection device module | + | <p>In the development process of hardware, our detection device module had been updated three iderations, and finally the third generation version was designed and realized.</p> |
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− | + | During the further discussion with several professiors, we found that the first-generation device was not efficient in fluorescence excitation, and some details were unreasonable because of the requirements and cost of 3D printing technology. But the second-generation device optimized the optical path based on the first-generation device and need no more transparent parts. A new optical path of 45° angle was used to enhance fluorescence excitation efficiency. | |
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− | We tried the second generation device and found that it | + | We tried the second generation device and found that it was not stable enough to detect the weak fluorescence. Under the guidance of Dr.Gul, we fixed the shortcomings of the original device in the fixation of the engineering bacteria, and designed the funnel-shaped groove, which was conducive to the accumulation of engineering bacteria and also improve the stability of the detection fluorescent signal. |
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− | In order to make other teams | + | In order to make other teams understand it easily and improve hardware together, we share important parameters, 3D models and acquisition software below. |
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− | <p> | + | <p>designing other drug degradation modules. We have reserved some modular designs to make them much easier and more convenient to implement. We also hope to optimize the design detection module. By doing so, we can get more stable and efficient signals and implementate the device at a lower cost.</p> |
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Revision as of 06:21, 21 October 2019
Overview
In order to combine the project and the progress of the experiment, we designed the expired drugs recycling and degrading device(Drug Avenger) and the fluorescence detection device in the hardware part.
Expired drugs recycling and degrading device(Drug Avenger) was used to collect and recycle expired drugs. The initial modular design allowed for the recovery of three types of drugs, and we designed and implementated the detection and processing module for ciprofloxacin. Fig. 2. and animation show the design and theoretical concept of a special CIP detection module.
Fig. 1. Expired drugs recycling and degrading device, which we call it Drug Avenger
Fig. 2. Print of the Drug Avenger
Fig. 3. The fluorescence detection device
Device iteration
In the development process of hardware, our detection device module had been updated three iderations, and finally the third generation version was designed and realized.
First generation device
Fig. 4. Light path of the first generation device
Second generation device
Fig. 5. Light path of the second generation device
Third generation device
Fig. 6. The funnel-shaped groove of the third generation device
please click on the two buttons below.
Input | Output | Size | Wavelength | Chip | Power | Aperture | Cut-On Wavelength | focal length | diameter | ADC | |
---|---|---|---|---|---|---|---|---|---|---|---|
Photodetector | Silicon-based avalanche diode | 200~1000nm | |||||||||
Laser | 450nm | 4.8mw | |||||||||
Development board | 12V | STM32F103C8T6 | ADS1256 | ||||||||
Relay | 12V | Four-way optocoupler isolation | |||||||||
Water pump | 5V | ||||||||||
Filter membrane | 0.22μm | ||||||||||
Switching power supply | 220V/110V | 12V/5V | |||||||||
optical filter | 500nm | ||||||||||
Convex lens | 25mm | 1 inch |
Expectation
designing other drug degradation modules. We have reserved some modular designs to make them much easier and more convenient to implement. We also hope to optimize the design detection module. By doing so, we can get more stable and efficient signals and implementate the device at a lower cost.