Wearable biosensors combine wearable devices like smartwatches and patches with biosensors to monitor physiological metrics. Examples discussed include a smart contact lens from Google that measures glucose in tears to help diabetics monitor blood sugar, an MIT sensor that measures emotional excitement through skin responses, and a Samsung wristband that uses light beams to measure metrics like heart rate and blood pressure in real time. Tattoo-based biosensors are also being developed that can monitor electrolytes and sweat to track activity levels and weight. Future applications envisioned include using sensors in floors and toothbrushes to continuously monitor health metrics and detect issues like cavities, ulcers, or falling risks.

1. Wearable Biosensors
By
s.parthipan

2. wearable Biosensors
 “Wearables + Biosensors”
 Wearable Biosensors is generally a combination of wearables and
biosensors. Wearables are objects that can be worn on the body. For
e.g. smartwatches, clothes, bandages, tattoos, patches, spectacles,
rings etc.
 Biosensors is a device made up of transducer, biosensor reader
device and a biological element. Here the biological element can be
an antibody, enzyme, or a nucleic acid.

3. Types of wearable biosensors.
 Google Smart Lens.
 Q™ Sensor
 Wearable Glucose Sensor
 Simband Wearable Biosensors
 Wearable Biosensors tattoos monitor sweat to track weight

4. Googles Smart Lens

5.  A smart contact lens measuring the glucose amount in tears was recently brought
out by Google as wearable biosensors.
 It consists of a small glucose sensor and a wireless chip. Built into the lens and
between two layers of the lens material, the glucose sensor and wireless chip is
embedded.
 The aim of this WBS is to help diabetic patients.
 A small pin size hole in the lens allows the tear fluid to go into the sensor to
measure blood sugar levels. Electronics lie outside the pupil and iris hence there is
no damage to the eye.

6. Q™ Sensor

7.  MIT Launches a Wearable Biosensor to Measure Human Emotions. Also known
as Affectiva Q™ Sensor.
 The company developed this biosensor for understanding, measuring and
communicating emotions. The Q Sensor is a wireless WBS that measures
emotional excitement by measuring physiological responses. The physiological
responses include skin conductance, temperature and motion.

8. Wearable Glucose Sensor

9.  Here WBS will measure the glucose levels using tissue fluids like tears and sweat
and not blood.
 The WBS transmits data over WiFi to the mobile receiver. The patient hence will
be able to continuously monitor his or her glucose level.

10. Simband Wearable Biosensors

11.  Samsung has brought out a new sensor filled watch Simband and a cloud platform
for storing health data collected by the device.
 Simband uses a sensor filled wristband and a large display for monitoring body
metrics in real time. This product of Samsung will collect health data from the
user and report it up to the SAMI (Samsung Architecture Multimodal Interaction))
cloud.
 The sensors in the band project beams of light into the skin at varying strengths in
order to reach tissue near the surface or deeper in. The screen then displays
metrics like heart rate and blood pressure in real time.

12. Wearable Biosensors tattoos monitor
sweat to track weight

13.  WBS tattoos that help us to monitor blood glocose levels in sweat .
 To access the biological health of the wearer, these wearable biosensors have been
integrated with electrochemical sensors which help in monitoring lactate levels
and pH in the sweat.
 The biosensor tattoos can be directly applied on skin or clothing. Researchers say
that, higher the amount of electrolytes, ammonia and sodium in sweat, higher is
the person’s physical activity. This technology is good for people who need to
know their weight and daily levels of physical activity.

14. Future biosensors
 Early morning when the patient rises up from bed, her weight is recorded
instantly. The Wi-Fi sensors under the floor boards help in obtaining the
continuous health and weight updates.


15.  As the patient brushes teeth, sensors in the brush will help to detect the cavities in
her mouth and also the sensors down at the floor will help to note the pressure
points of her feet to detect any signs of ulcer.

16.  Sensors on the floor will help the patient to avoid any risk of falling; thereby
making the patient comfortable all around the home.This facility in the coming
future can surely help the elder patients.

17.  Thank you…………...