Algae-colonized soft robotic arm moves through photosynthesis to grasp objects without external energy
GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·
Biomimicry and bio-hybrid systems: a relevant GS3 Science & Technology topic.
Why in news
Researchers at Delft University of Technology developed a soft robotic arm that utilizes algae-driven photosynthesis to move and grasp objects without external energy.
Background
The robotic arm is approximately three-quarters of an inch long and utilizes hydrogel layers. These layers swell or shrink in response to local pH changes generated by algal activity.
Facts for Prelims
- S&TThe soft robotic arm is colonized by algae to power movement via photosynthesis.
- S&THydrogel layers are used to facilitate movement by swelling or shrinking based on pH changes.
- FactThe robotic arm measures approximately three-quarters of an inch in length.
- BodyThe research was conducted at Delft University of Technology.
Prelims practice question
Which material is used in the soft robotic arm to facilitate movement by swelling or shrinking in response to pH changes?
- (a)Aerogel
- (b)Hydrogel
- (c)Carbon fiber
- (d)Polytetrafluoroethylene
Show answer
Answer: (b) Hydrogel — The note states that hydrogel layers are used to facilitate movement by swelling or shrinking based on pH changes.
For Mains
Q. Discuss how the integration of biological systems with soft robotics can revolutionize autonomous systems in agriculture and underwater exploration.
Dimensions to cover in your answer
- Energy autonomy: Elimination of external power requirements through biological photosynthesis
- Material innovation: Use of pH-responsive hydrogels for mechanical actuation
- Application scalability: Potential for deployment in inaccessible underwater environments or precision agriculture
Keywords: Soft Robotics · Photosynthesis · Hydrogel · Biomimicry · Autonomous Systems
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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.