
AquaLite
PROJECT THEME: WATERLESS HANDWASHING
PROJECT TYPE: SELF-MOTIVATED PROJECT
PROJECT OUTCOME: PROTOTYPE OF AQUALITE SANITIZING HUB

AquaLite
PROJECT THEME: WATERLESS HANDWASHING
PROJECT TYPE: SELF-MOTIVATED PROJECT
PROJECT OUTCOME: PROTOTYPE OF AQUALITE SANITIZING HUB

AquaLite
PROJECT THEME: WATERLESS HANDWASHING
PROJECT TYPE: SELF-MOTIVATED PROJECT
PROJECT OUTCOME: PROTOTYPE OF AQUALITE SANITIZING HUB
HAND HYGIENE VS. WATER SCARCITY: A GLOBAL DILEMMA
HAND HYGIENE VS. WATER SCARCITY: A GLOBAL DILEMMA
HAND HYGIENE VS. WATER SCARCITY: A GLOBAL DILEMMA
Frequent and diligent handwashing can:
Frequent and diligent handwashing can:
Frequent and diligent handwashing can:
Minimize the spread of infectious diseases
Minimize the spread of infectious diseases
Minimize the spread of infectious diseases
Reduce the risk of gastrointestinal illnesses
Reduce the risk of gastrointestinal illnesses
Reduce the risk of gastrointestinal illnesses
Help fight against antibiotic resistance
Help fight against antibiotic resistance
Help fight against antibiotic resistance
Contribute to a safer and healthier environment
Contribute to a safer and healthier environment
Contribute to a safer and healthier environment
Lower healthcare costs
Lower healthcare costs
Lower healthcare costs
Promote a culture of cleanliness
Promote a culture of cleanliness
Promote a culture of cleanliness
Per CDC, hand washing reduces:
Per CDC, hand washing reduces:
Per CDC, hand washing reduces:
Diarrhea illness by 23-40% and by 58% in immune-compromised individuals
Diarrhea illness by 23-40% and by 58% in immune-compromised individuals
Diarrhea illness by 23-40% and by 58% in immune-compromised individuals
Reduces colds and respiratory illnesses by 16-21% in the general population
Reduces colds and respiratory illnesses by 16-21% in the general population
Reduces colds and respiratory illnesses by 16-21% in the general population
Schoolchildren's absenteeism from gastrointestinal illness by 29-57%
Schoolchildren's absenteeism from gastrointestinal illness by 29-57%
Schoolchildren's absenteeism from gastrointestinal illness by 29-57%
According to WHO:
According to WHO:
According to WHO:


Hand hygiene prevents up to 50% of healthcare-acquired infections.
Hand hygiene prevents up to 50% of healthcare-acquired infections.



Investing in hand hygiene reaps significant economic returns, averaging 16 times the cost of implementation.
Investing in hand hygiene reaps significant economic returns, averaging 16 times the cost of implementation.
Hygienic Handwashing: Essential, Yet Water-Intensive
Hygienic Handwashing: Essential, Yet Water-Intensive
Hygienic Handwashing: Essential, Yet Water-Intensive



Personal Water Usage Investigation
Personal Water Usage Investigation
Personal Water Usage Investigation



STEP 1:
STEP 1:
STEP 1:
Close the drain
Close the drain
Close the drain



STEP 2:
STEP 2:
STEP 2:
Wash hands thoroughly
Wash hands thoroughly
Wash hands thoroughly



STEP 3:
STEP 3:
STEP 3:
Gather water from the sink
Gather water from the sink
Gather water from the sink



STEP 4:
STEP 4:
STEP 4:
Measure the water volume in the cups
Measure the water volume in the cups
Measure the water volume in the cups
Personally, I use approximately 0.46 gallons of water per hand wash, totaling about 3.68 gallons per day. This closely matches the theoretical estimate and underscores the substantial water usage associated with hand washing.
Personally, I use approximately 0.46 gallons of water per hand wash, totaling about 3.68 gallons per day. This closely matches the theoretical estimate and underscores the substantial water usage associated with hand washing.
Personally, I use approximately 0.46 gallons of water per hand wash, totaling about 3.68 gallons per day. This closely matches the theoretical estimate and underscores the substantial water usage associated with hand washing.
THE ALARMING REALITY OF CLEAN WATER
THE ALARMING REALITY OF CLEAN WATER
THE ALARMING REALITY OF CLEAN WATER
About 2 billion people lack access to clean drinking water.
About 2 billion people lack access to clean drinking water.
About 2 billion people lack access to clean drinking water.
+
+
+
About 3.6 billion people lack proper sanitation services.
About 3.6 billion people lack proper sanitation services.
About 3.6 billion people lack proper sanitation services.
≈71%
≈71%
≈71%
of the population find that frequent hand cleaning has become an unattainable luxury.
of the population find that frequent hand cleaning has become an unattainable luxury.
of the population find that frequent hand cleaning has become an unattainable luxury.



CURRENT SOLUTIONS AND LIMITATIONS
CURRENT SOLUTIONS AND LIMITATIONS
CURRENT SOLUTIONS AND LIMITATIONS
Few waterless hand cleaning options exist today, each with its own pros and cons. None are perfect, highlighting the need for a more accessible and sustainable hand hygiene approach, especially in water-scarce areas.
Few waterless hand cleaning options exist today, each with its own pros and cons. None are perfect, highlighting the need for a more accessible and sustainable hand hygiene approach, especially in water-scarce areas.
Few waterless hand cleaning options exist today, each with its own pros and cons. None are perfect, highlighting the need for a more accessible and sustainable hand hygiene approach, especially in water-scarce areas.



THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
Experiment With Ultrasonic Vibrators
Experiment With Ultrasonic Vibrators
Experiment With Ultrasonic Vibrators
Inspired by the efficiency of ultrasonic cleaners, I decide to extract their ultrasonic vibrators and experiment by applying the technology to hand cleansing. The initial results are promising. Further research and experimentation with a frequency generator significantly improve cleaning effectiveness. Encouraged by these findings, I decide to integrate the extracted ultrasonic vibrators into the AquaLite for an enhanced hand-cleansing experience.
Inspired by the efficiency of ultrasonic cleaners, I decide to extract their ultrasonic vibrators and experiment by applying the technology to hand cleansing. The initial results are promising. Further research and experimentation with a frequency generator significantly improve cleaning effectiveness. Encouraged by these findings, I decide to integrate the extracted ultrasonic vibrators into the AquaLite for an enhanced hand-cleansing experience.
Inspired by the efficiency of ultrasonic cleaners, I decide to extract their ultrasonic vibrators and experiment by applying the technology to hand cleansing. The initial results are promising. Further research and experimentation with a frequency generator significantly improve cleaning effectiveness. Encouraged by these findings, I decide to integrate the extracted ultrasonic vibrators into the AquaLite for an enhanced hand-cleansing experience.
Explore the Optimal Frequency
Explore the Optimal Frequency
Explore the Optimal Frequency
The ultrasonic vibrator generates cavitation by using high-frequency sound waves to dislodge contaminants from surfaces. It is widely available in two variations: 28 kHz and 40 kHz frequencies, each suited to specific cleaning applications.
The ultrasonic vibrator generates cavitation by using high-frequency sound waves to dislodge contaminants from surfaces. It is widely available in two variations: 28 kHz and 40 kHz frequencies, each suited to specific cleaning applications.
The ultrasonic vibrator generates cavitation by using high-frequency sound waves to dislodge contaminants from surfaces. It is widely available in two variations: 28 kHz and 40 kHz frequencies, each suited to specific cleaning applications.
28kHz
28kHz
28kHz



This frequency is often used for heavy-duty cleaning. It's suitable for removing stubborn contaminants like grease, oil, and heavy dirt.
This frequency is often used for heavy-duty cleaning. It's suitable for removing stubborn contaminants like grease, oil, and heavy dirt.
This frequency is often used for heavy-duty cleaning. It's suitable for removing stubborn contaminants like grease, oil, and heavy dirt.
40kHz
40kHz
40kHz



This frequency, ideal for applications requiring delicate and precise cleaning, offers cleaning that is slightly less effective compared to 28 kHz but is gentler in its action.
This frequency, ideal for applications requiring delicate and precise cleaning, offers cleaning that is slightly less effective compared to 28 kHz but is gentler in its action.
This frequency, ideal for applications requiring delicate and precise cleaning, offers cleaning that is slightly less effective compared to 28 kHz but is gentler in its action.

Ultrasonic Vibrator
Ultrasonic Vibrator
Ultrasonic Vibrator


Ultrasonic Generator
Ultrasonic Generator
Ultrasonic Generator
Boosting Ultrasonic Cleaning with Alcohol-Based Hand Sanitizer
Boosting Ultrasonic Cleaning with Alcohol-Based Hand Sanitizer
Boosting Ultrasonic Cleaning with Alcohol-Based Hand Sanitizer
The alcohol-based hand sanitizer excels in eliminating oil, grease, and dirt, offering a cost-effective and sustainable alternative. When paired with the ultrasonic vibrator, especially for heavily soiled hands, it forms a powerful combination. The resulting clean effect surpasses nearly all options on the market.
The alcohol-based hand sanitizer excels in eliminating oil, grease, and dirt, offering a cost-effective and sustainable alternative. When paired with the ultrasonic vibrator, especially for heavily soiled hands, it forms a powerful combination. The resulting clean effect surpasses nearly all options on the market.
The alcohol-based hand sanitizer excels in eliminating oil, grease, and dirt, offering a cost-effective and sustainable alternative. When paired with the ultrasonic vibrator, especially for heavily soiled hands, it forms a powerful combination. The resulting clean effect surpasses nearly all options on the market.
The Science Behind
The Science Behind
The Science Behind
Alcohol-based hand sanitizers break down dirt by dissolving both polar and non-polar contaminants. The alcohol dissolute the structure of lipids, denatures proteins in microorganisms, and evaporates rapidly, carrying away dissolved particles. This dynamic cleaning process is further enhanced when paired with an ultrasonic device. The ultrasonic vibrations effectively assist in dislodging and breaking apart stubborn contaminants on the skin, allowing the sanitizer to penetrate more deeply—particularly beneficial when addressing heavily soiled hands or challenging residues.
Alcohol-based hand sanitizers break down dirt by dissolving both polar and non-polar contaminants. The alcohol dissolute the structure of lipids, denatures proteins in microorganisms, and evaporates rapidly, carrying away dissolved particles. This dynamic cleaning process is further enhanced when paired with an ultrasonic device. The ultrasonic vibrations effectively assist in dislodging and breaking apart stubborn contaminants on the skin, allowing the sanitizer to penetrate more deeply—particularly beneficial when addressing heavily soiled hands or challenging residues.
Alcohol-based hand sanitizers break down dirt by dissolving both polar and non-polar contaminants. The alcohol dissolute the structure of lipids, denatures proteins in microorganisms, and evaporates rapidly, carrying away dissolved particles. This dynamic cleaning process is further enhanced when paired with an ultrasonic device. The ultrasonic vibrations effectively assist in dislodging and breaking apart stubborn contaminants on the skin, allowing the sanitizer to penetrate more deeply—particularly beneficial when addressing heavily soiled hands or challenging residues.



Alcohol Versus Virus
Alcohol Versus Virus
Alcohol Versus Virus
THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
THE CORE PRINCIPLE: CLEAN HANDS = DIRT EXPULSION + HYGIENIC SANITATION
Introducing UV Light
Introducing UV Light
Introducing UV Light
UV technology, widely employed in the medical field, leverages ultraviolet germicidal irradiation to disrupt the DNA or RNA of microorganisms, effectively thwarting their replication and rendering them inactive. This waterless, efficient, and sustainable method as a potent solution for eradicating germs and viruses. However, a notable drawback of traditional UV light is its potential harm to human skin and eyes. Nevertheless, there is a solution to this concern.
UV technology, widely employed in the medical field, leverages ultraviolet germicidal irradiation to disrupt the DNA or RNA of microorganisms, effectively thwarting their replication and rendering them inactive. This waterless, efficient, and sustainable method as a potent solution for eradicating germs and viruses. However, a notable drawback of traditional UV light is its potential harm to human skin and eyes. Nevertheless, there is a solution to this concern.
UV technology, widely employed in the medical field, leverages ultraviolet germicidal irradiation to disrupt the DNA or RNA of microorganisms, effectively thwarting their replication and rendering them inactive. This waterless, efficient, and sustainable method as a potent solution for eradicating germs and viruses. However, a notable drawback of traditional UV light is its potential harm to human skin and eyes. Nevertheless, there is a solution to this concern.
UV Light Options
UV Light Options
UV Light Options



222nm UVC Light: A Hand Hygiene Game Changer
222nm UVC Light: A Hand Hygiene Game Changer
222nm UVC Light: A Hand Hygiene Game Changer



Efficient Bacterial Inactivation:
Efficient Bacterial Inactivation:
Efficient Bacterial Inactivation:
222nm UVC light is as effective as 254nm germicidal UVC lamps in eliminating bacteria, including antibiotic-resistant MRSA, killing up to 99.9% of bacteria and viruses.
222nm UVC light is as effective as 254nm germicidal UVC lamps in eliminating bacteria, including antibiotic-resistant MRSA, killing up to 99.9% of bacteria and viruses.
222nm UVC light is as effective as 254nm germicidal UVC lamps in eliminating bacteria, including antibiotic-resistant MRSA, killing up to 99.9% of bacteria and viruses.



Safe for Skin:
Safe for Skin:
Safe for Skin:
Exposure to 222nm UVC light is safe for the skin, causing no damage or inflammation, unlike most UVC light, which can cause skin damage and excessive skin cell growth.
Exposure to 222nm UVC light is safe for the skin, causing no damage or inflammation, unlike most UVC light, which can cause skin damage and excessive skin cell growth.
Exposure to 222nm UVC light is safe for the skin, causing no damage or inflammation, unlike most UVC light, which can cause skin damage and excessive skin cell growth.



No DNA Damage:
No DNA Damage:
No DNA Damage:
Differing from most UVC sources, 222nm UVC light doesn't induce premutagenic DNA lesions in human cells, offering a safer alternative for applications where traditional UVC light may jeopardize DNA integrity.
Differing from most UVC sources, 222nm UVC light doesn't induce premutagenic DNA lesions in human cells, offering a safer alternative for applications where traditional UVC light may jeopardize DNA integrity.
Differing from most UVC sources, 222nm UVC light doesn't induce premutagenic DNA lesions in human cells, offering a safer alternative for applications where traditional UVC light may jeopardize DNA integrity.



Sustainable:
Sustainable:
Sustainable:
222nm UVC light doesn't react with ozone, which is important as ozone can harm plants, reduce crop yields, impact animal respiration, and contribute to smog.
222nm UVC light doesn't react with ozone, which is important as ozone can harm plants, reduce crop yields, impact animal respiration, and contribute to smog.
222nm UVC light doesn't react with ozone, which is important as ozone can harm plants, reduce crop yields, impact animal respiration, and contribute to smog.
Safety Considered: 222nm vs. Conventional UVC
Safety Considered: 222nm vs. Conventional UVC
Safety Considered: 222nm vs. Conventional UVC
The heightened safety of 222nm UVC light for the skin stems from its shorter wavelength, limiting its penetration into the outer skin layer. In contrast to traditional UVC light, it is absorbed by the outermost skin layer, reducing the risk of cellular damage and DNA lesions. Despite this, 222nm UVC light remains remarkably effective at killing germs, making it a skin-friendly and efficient option for AquaLite.
The heightened safety of 222nm UVC light for the skin stems from its shorter wavelength, limiting its penetration into the outer skin layer. In contrast to traditional UVC light, it is absorbed by the outermost skin layer, reducing the risk of cellular damage and DNA lesions. Despite this, 222nm UVC light remains remarkably effective at killing germs, making it a skin-friendly and efficient option for AquaLite.
The heightened safety of 222nm UVC light for the skin stems from its shorter wavelength, limiting its penetration into the outer skin layer. In contrast to traditional UVC light, it is absorbed by the outermost skin layer, reducing the risk of cellular damage and DNA lesions. Despite this, 222nm UVC light remains remarkably effective at killing germs, making it a skin-friendly and efficient option for AquaLite.



STEP-BY-STEP: HOW AQUALITE GETS THE JOB DONE
STEP-BY-STEP: HOW AQUALITE GETS THE JOB DONE
STEP-BY-STEP: HOW AQUALITE GETS THE JOB DONE
Hand Presence Detection/Dirt Sensing
Hand Presence Detection/Dirt Sensing
Hand Presence Detection/Dirt Sensing



The conductive printed sensors layered on the transducer pad can detect changes in electrical conductivity when moisture, liquids, or contaminants are present on the skin.
The conductive printed sensors layered on the transducer pad can detect changes in electrical conductivity when moisture, liquids, or contaminants are present on the skin.
The conductive printed sensors layered on the transducer pad can detect changes in electrical conductivity when moisture, liquids, or contaminants are present on the skin.
Dirt Expulsion Procedure
Dirt Expulsion Procedure
Dirt Expulsion Procedure
During the dirt expulsion process, Aqualite activates the ultrasonic vibrator and alcohol-based cleaning solution spray on the user's hand. Vibration frequency, duration, and cleaning solution usage adjust automatically based on the hand's soil level determined through the dirt sense process, ensuring effective yet sustainable cleaning.
During the dirt expulsion process, Aqualite activates the ultrasonic vibrator and alcohol-based cleaning solution spray on the user's hand. Vibration frequency, duration, and cleaning solution usage adjust automatically based on the hand's soil level determined through the dirt sense process, ensuring effective yet sustainable cleaning.
During the dirt expulsion process, Aqualite activates the ultrasonic vibrator and alcohol-based cleaning solution spray on the user's hand. Vibration frequency, duration, and cleaning solution usage adjust automatically based on the hand's soil level determined through the dirt sense process, ensuring effective yet sustainable cleaning.
Hygienic Sanitation Procedure
Hygienic Sanitation Procedure
Hygienic Sanitation Procedure
During hygienic sanitation, AquaLite employs 222nm UVC light for 20 seconds to eliminate any remaining bacteria and viruses. This comes after the process of removing dirt, as UVC light is most effective on dry, clean surfaces, ensuring thorough cleaning with minimal waste of time and energy.
During hygienic sanitation, AquaLite employs 222nm UVC light for 20 seconds to eliminate any remaining bacteria and viruses. This comes after the process of removing dirt, as UVC light is most effective on dry, clean surfaces, ensuring thorough cleaning with minimal waste of time and energy.
During hygienic sanitation, AquaLite employs 222nm UVC light for 20 seconds to eliminate any remaining bacteria and viruses. This comes after the process of removing dirt, as UVC light is most effective on dry, clean surfaces, ensuring thorough cleaning with minimal waste of time and energy.



AQUALITE IN VARIOUS SETTINGS
AQUALITE IN VARIOUS SETTINGS
AQUALITE IN VARIOUS SETTINGS



Water-Scarce Areas: In regions with limited access to clean water, AquaLite offers a permanent and sustainable hand hygiene solution without water, reducing the risk of waterborne diseases. Its minimum requirement for operation is electricity, making it a dependable choice even in the most challenging conditions.
Water-Scarce Areas: In regions with limited access to clean water, AquaLite offers a permanent and sustainable hand hygiene solution without water, reducing the risk of waterborne diseases. Its minimum requirement for operation is electricity, making it a dependable choice even in the most challenging conditions.
Water-Scarce Areas: In regions with limited access to clean water, AquaLite offers a permanent and sustainable hand hygiene solution without water, reducing the risk of waterborne diseases. Its minimum requirement for operation is electricity, making it a dependable choice even in the most challenging conditions.



High-Traffic Urban Areas: In urban areas where installing traditional handwashing stations is difficult because of infrastructure and space limitations, AquaLite provides a waterless hand hygiene solution. In addition to providing hygiene for locals and travelers, AquaLite also makes adding more stations easier.
High-Traffic Urban Areas: In urban areas where installing traditional handwashing stations is difficult because of infrastructure and space limitations, AquaLite provides a waterless hand hygiene solution. In addition to providing hygiene for locals and travelers, AquaLite also makes adding more stations easier.
High-Traffic Urban Areas: In urban areas where installing traditional handwashing stations is difficult because of infrastructure and space limitations, AquaLite provides a waterless hand hygiene solution. In addition to providing hygiene for locals and travelers, AquaLite also makes adding more stations easier.



Public Transportation Hubs: In bustling locations such as bus terminals, train stations, and airports, the risk of disease transmission is elevated due to high foot traffic. AquaLite ensures that travelers maintain clean hands on the go, reducing the spread of diseases. It offers convenient hygiene, enhancing safety during journeys.
Public Transportation Hubs: In bustling locations such as bus terminals, train stations, and airports, the risk of disease transmission is elevated due to high foot traffic. AquaLite ensures that travelers maintain clean hands on the go, reducing the spread of diseases. It offers convenient hygiene, enhancing safety during journeys.
Public Transportation Hubs: In bustling locations such as bus terminals, train stations, and airports, the risk of disease transmission is elevated due to high foot traffic. AquaLite ensures that travelers maintain clean hands on the go, reducing the spread of diseases. It offers convenient hygiene, enhancing safety during journeys.



Schools and Colleges: AquaLite devices encourage frequent handwashing among staff and students in educational settings, promoting a healthier learning environment while emphasizing water conservation. AquaLite also eliminates initial plumbing costs and reduces maintenance expenses, contributing to a more sustainable solution.
Schools and Colleges: AquaLite devices encourage frequent handwashing among staff and students in educational settings, promoting a healthier learning environment while emphasizing water conservation. AquaLite also eliminates initial plumbing costs and reduces maintenance expenses, contributing to a more sustainable solution.
Schools and Colleges: AquaLite devices encourage frequent handwashing among staff and students in educational settings, promoting a healthier learning environment while emphasizing water conservation. AquaLite also eliminates initial plumbing costs and reduces maintenance expenses, contributing to a more sustainable solution.



Outdoor Events: AquaLite is the ideal solution for outdoor events and festivals, where traditional handwashing facilities can be limited, and the risk of disease transmission is high. It offers quick and effective hand hygiene without the need for a running water supply.
Outdoor Events: AquaLite is the ideal solution for outdoor events and festivals, where traditional handwashing facilities can be limited, and the risk of disease transmission is high. It offers quick and effective hand hygiene without the need for a running water supply.
Outdoor Events: AquaLite is the ideal solution for outdoor events and festivals, where traditional handwashing facilities can be limited, and the risk of disease transmission is high. It offers quick and effective hand hygiene without the need for a running water supply.
PROTOTYPING AND EVALUATION PT1
PROTOTYPING AND EVALUATION PT1
PROTOTYPING AND EVALUATION PT1
Stage 1: Conceptual Design
Stage 1: Conceptual Design
Stage 1: Conceptual Design
In conceiving AquaLite's design, I focus on the physical dimensions and movements of a pair of human hands. Drawing inspiration from user-friendly designs like the Dyson hand dryer, my goal is to create a system where users can effortlessly insert their hands. The machine adapts to the level of cleanliness without requiring extra buttons or complexity, ensuring a straightforward and effective hand hygiene experience that adjusts according to the cleanliness of the hands.
In conceiving AquaLite's design, I focus on the physical dimensions and movements of a pair of human hands. Drawing inspiration from user-friendly designs like the Dyson hand dryer, my goal is to create a system where users can effortlessly insert their hands. The machine adapts to the level of cleanliness without requiring extra buttons or complexity, ensuring a straightforward and effective hand hygiene experience that adjusts according to the cleanliness of the hands.
In conceiving AquaLite's design, I focus on the physical dimensions and movements of a pair of human hands. Drawing inspiration from user-friendly designs like the Dyson hand dryer, my goal is to create a system where users can effortlessly insert their hands. The machine adapts to the level of cleanliness without requiring extra buttons or complexity, ensuring a straightforward and effective hand hygiene experience that adjusts according to the cleanliness of the hands.
Average Hand Size
Average Hand Size
Average Hand Size






This image showcases one of the original illustrations, providing a glimpse into the exploratory phase of shaping the Aqualite.
This image showcases one of the original illustrations, providing a glimpse into the exploratory phase of shaping the Aqualite.
This image showcases one of the original illustrations, providing a glimpse into the exploratory phase of shaping the Aqualite.
Stage 2: Detailed Component Design
Stage 2: Detailed Component Design
Stage 2: Detailed Component Design
During this stage, I break down the model into smaller components, and design each to optimize internal space for integrating various electronic components. I focus on ensuring structural stability, establishing sufficient component clearance, and facilitating a smooth assembly and manufacturing process. These considerations drive the development of a more refined design that strikes a balance between form and function.
During this stage, I break down the model into smaller components, and design each to optimize internal space for integrating various electronic components. I focus on ensuring structural stability, establishing sufficient component clearance, and facilitating a smooth assembly and manufacturing process. These considerations drive the development of a more refined design that strikes a balance between form and function.
During this stage, I break down the model into smaller components, and design each to optimize internal space for integrating various electronic components. I focus on ensuring structural stability, establishing sufficient component clearance, and facilitating a smooth assembly and manufacturing process. These considerations drive the development of a more refined design that strikes a balance between form and function.



Stage 3: Prototyping and Manufacture
Stage 3: Prototyping and Manufacture
Stage 3: Prototyping and Manufacture
In this manufacturing phase, I use PLA and Fused Deposition Modeling (FDM) technology to 3D print each component. Before printing the subsequent component, I refine the design to ensure a precise fit. Additionally, I conduct test fittings for the electrical components, striving for a seamless integration process while confirming minimal functionality and compatibility between each part. This comprehensive approach enhances the overall manufacturing efficiency.
In this manufacturing phase, I use PLA and Fused Deposition Modeling (FDM) technology to 3D print each component. Before printing the subsequent component, I refine the design to ensure a precise fit. Additionally, I conduct test fittings for the electrical components, striving for a seamless integration process while confirming minimal functionality and compatibility between each part. This comprehensive approach enhances the overall manufacturing efficiency.
In this manufacturing phase, I use PLA and Fused Deposition Modeling (FDM) technology to 3D print each component. Before printing the subsequent component, I refine the design to ensure a precise fit. Additionally, I conduct test fittings for the electrical components, striving for a seamless integration process while confirming minimal functionality and compatibility between each part. This comprehensive approach enhances the overall manufacturing efficiency.
3D Printing Lab at RPI
3D Printing Lab at RPI
3D Printing Lab at RPI






PROTOTYPING AND EVALUATION PT2
PROTOTYPING AND EVALUATION PT2
PROTOTYPING AND EVALUATION PT2
Stage 4: Electronics Integration and Validation
Stage 4: Electronics Integration and Validation
Stage 4: Electronics Integration and Validation
In this stage, I integrate all electronics within the compact confines of the AquaLite. I isolate relays to reduce Electromagnetic Interference (EMI), separate high-voltage and low-voltage components to ensure safety and functionality, and optimize internal space to enhance cooling capabilities. This approach safeguards the performance of electronic components, ensuring both efficiency and safety within the system.
In this stage, I integrate all electronics within the compact confines of the AquaLite. I isolate relays to reduce Electromagnetic Interference (EMI), separate high-voltage and low-voltage components to ensure safety and functionality, and optimize internal space to enhance cooling capabilities. This approach safeguards the performance of electronic components, ensuring both efficiency and safety within the system.
In this stage, I integrate all electronics within the compact confines of the AquaLite. I isolate relays to reduce Electromagnetic Interference (EMI), separate high-voltage and low-voltage components to ensure safety and functionality, and optimize internal space to enhance cooling capabilities. This approach safeguards the performance of electronic components, ensuring both efficiency and safety within the system.
Interconnection Diagram
Interconnection Diagram
Interconnection Diagram






Stage 5: Embedded System Programming
Stage 5: Embedded System Programming
Stage 5: Embedded System Programming
During this stage, I program the Arduino Uno R3 via Arduino IDE to orchestrate the turn-on sequence and regulate the timing of the ultrasonic vibrators, sanitizer pump, and UVC light to ensure a synchronized and effective hand hygiene process.
During this stage, I program the Arduino Uno R3 via Arduino IDE to orchestrate the turn-on sequence and regulate the timing of the ultrasonic vibrators, sanitizer pump, and UVC light to ensure a synchronized and effective hand hygiene process.
During this stage, I program the Arduino Uno R3 via Arduino IDE to orchestrate the turn-on sequence and regulate the timing of the ultrasonic vibrators, sanitizer pump, and UVC light to ensure a synchronized and effective hand hygiene process.



Programing the Arduino
Programing the Arduino
Programing the Arduino



Flashing the Arduino
Flashing the Arduino
Flashing the Arduino
Stage 6: Embedded System Validation
Stage 6: Embedded System Validation
Stage 6: Embedded System Validation



AquaLite in Action (45° Front-to-Top)
AquaLite in Action (45° Front-to-Top)
AquaLite in Action (45° Front-to-Top)



90° Front-to-Top
90° Front-to-Top
90° Front-to-Top



Side View
Side View
Side View
RENDER AND VISUALIZATION
RENDER AND VISUALIZATION
RENDER AND VISUALIZATION



AquaLite at a New York Bus Stop
AquaLite at a New York Bus Stop
AquaLite at a New York Bus Stop



AquaLite Detailed View
AquaLite Detailed View
AquaLite Detailed View
CURRENT STATUS
CURRENT STATUS
CURRENT STATUS
AquaLite is a well-developed prototype with mostly operational features, incorporating UVC light, ultrasonic vibrators, and a functional water pump controlled by an Arduino. While the water pump demonstrates functionality, no cleaning solution is included in this iteration to protect exposed electronics from potential damage. Additionally, occasionally, the dirt-sensing function, facilitated by conductive printed sensors, may yield inaccurate readings, impacting the completeness of hand cleaning. In such cases, running the hand through the machine again is recommended. Currently, AquaLite is effective with lightly to moderately soiled hands.
AquaLite is a well-developed prototype with mostly operational features, incorporating UVC light, ultrasonic vibrators, and a functional water pump controlled by an Arduino. While the water pump demonstrates functionality, no cleaning solution is included in this iteration to protect exposed electronics from potential damage. Additionally, occasionally, the dirt-sensing function, facilitated by conductive printed sensors, may yield inaccurate readings, impacting the completeness of hand cleaning. In such cases, running the hand through the machine again is recommended. Currently, AquaLite is effective with lightly to moderately soiled hands.
AquaLite is a well-developed prototype with mostly operational features, incorporating UVC light, ultrasonic vibrators, and a functional water pump controlled by an Arduino. While the water pump demonstrates functionality, no cleaning solution is included in this iteration to protect exposed electronics from potential damage. Additionally, occasionally, the dirt-sensing function, facilitated by conductive printed sensors, may yield inaccurate readings, impacting the completeness of hand cleaning. In such cases, running the hand through the machine again is recommended. Currently, AquaLite is effective with lightly to moderately soiled hands.
FUTURE PROSPECTS
FUTURE PROSPECTS
FUTURE PROSPECTS
Currently, as promising as it may sound, AquaLite is still in the late prototype stage. There are a few areas that need to be addressed or improved to pave the way for AquaLite to potentially enter the market.
Currently, as promising as it may sound, AquaLite is still in the late prototype stage. There are a few areas that need to be addressed or improved to pave the way for AquaLite to potentially enter the market.
Currently, as promising as it may sound, AquaLite is still in the late prototype stage. There are a few areas that need to be addressed or improved to pave the way for AquaLite to potentially enter the market.
Enclose the entire system, implement a weatherproof design, and incorporate a drainage or drying mechanism for the cleaning solution.
Enclose the entire system, implement a weatherproof design, and incorporate a drainage or drying mechanism for the cleaning solution.
Enclose the entire system, implement a weatherproof design, and incorporate a drainage or drying mechanism for the cleaning solution.
Consider using injection molding techniques instead of 3D printing for mass production.
Enhance the conductive printed sensors or explore alternative sensor options for more accurate dirt detection.
Consider using injection molding techniques instead of 3D printing for mass production.
Enhance the conductive printed sensors or explore alternative sensor options for more accurate dirt detection.
Consider using injection molding techniques instead of 3D printing for mass production.
Enhance the conductive printed sensors or explore alternative sensor options for more accurate dirt detection.
Integrate indicator LEDs and incorporate a quick-fill port for efficient refilling of the cleaning solution.
Integrate indicator LEDs and incorporate a quick-fill port for efficient refilling of the cleaning solution.
Integrate indicator LEDs and incorporate a quick-fill port for efficient refilling of the cleaning solution.
Optimize the manufacturing process of the 222nm UVC light to reduce costs and increase durability.
Optimize the manufacturing process of the 222nm UVC light to reduce costs and increase durability.
Optimize the manufacturing process of the 222nm UVC light to reduce costs and increase durability.
Ideally, explore ways to eliminate the need for a cleaning solution to make the system more sustainable and lower maintenance costs.
Ideally, explore ways to eliminate the need for a cleaning solution to make the system more sustainable and lower maintenance costs.
Ideally, explore ways to eliminate the need for a cleaning solution to make the system more sustainable and lower maintenance costs.


