>> WORKING WITH
THE NASA PEOPLE HERE
AND THE ENGINEERING TEAM IN
OUR GROUP WAS VERY INTERESTING
BECAUSE WE FOUND
SOME OF THE REGIONS OF INTEREST
IN OUR CAPILLARIES
WHICH WE SENT TO-TO
THE SPACE STATION.
THEY HELPED US FOR LOCATING IT
AND THEN TAKING A MOVIE,
UH, FOR STUDYING
THE BROWNIAN MOTION IN SPACE.
SO BROWNIAN MOTION
IS HAVING TWO TYPES OF MOTIONS
THAT IS TRANSLOCATIONAL MOTION
AND ALSO THE ROTATIONAL MOTIONS.
WE ARE MORE INTERESTED IN
THE ROTATIONAL MOTION
OF THE PARTICLES.
BROWNIAN MOTION, IN GENERAL,
IS KIND OF RANDOM MOVEMENT
OF THE PARTICLES IN THE FLUIDS.
HERE, WE ARE NOT INTERESTED
IN MORE RANDOM PART,
BUT WE ARE MORE INTERESTED IN
WITHOUT BOMBARDMENT,
HOW THEY ARE MOVING
IN ROTATIONAL DYNAMICS.
IN THIS EXPERIMENT, WE ARE
USING THE JANUS PARTICLE,
WHICH IS PARTLY,
UH, WATER LOVING, AND PARTLY
WATER, UH, DISLIKING.
IT HELPS US TO CONTROL
THE DIFFUSION RATE
OF THESE PARTICLES.
IF WE APPLY OUR SCIENCE
TO THESE SYSTEMS, WE CAN CONTROL
HOW FAST IT CAN BE DIFFUSED
THROUGH THE MEMBRANE.
THE DIFFUSION RATE OF
THE PARTICLES CAN BE TUNED.
AND THIS TUNING CAN HELP US
TO MANIPULATE THIS, UH,
DRUG DELIVERY SYSTEMS ON
COSMETICS WHICH REPAIR.
WE CAN CHANGE OR MANIPULATE
OR TUNE THE, UH, SYSTEM
FOR AC-- BEING ACCEPTED
BY INDIVIDUAL PERSONS
BY UNDERSTANDING THIS SCIENCE.
BASED ON THIS UNDERSTANDING,
WE CAN EVEN MAKE,
UH, SOFT ROBOTS OR--
IN A SELF ASSEMBLY.
THE WORTH OF THIS STUDY IS
IF WE CAN UNDERSTAND
HOW THIS PARTICLES--
THE JANUS PARTICLES CAN BE
ASSEMBLED, OR SELF ASSEMBLED,
WE CAN EVEN SEND IT
TO THE SPACE FOR MAKING
SOFT ROBOTS IN THE SPACE.
IT WAS A VERY, UH,
INTERESTING EXPERIENCE WITH--
FOR ME TO COME TO THE NASA
AND WORK WITH THE SCIENCE
AND ENGINEERING TEAM IN NASA.
WE HAVE DONE THIS EXPERIMENT
BACK IN SOUTH KOREA
IN OUR LAB TO UNDERSTAND
THE BROWNIAN MOTION
AND THE SELF-ASSEMBLY OF
THE-- ANISOTROPIC PARTICLES.
BUT WHAT WE CAN DO OR UNDERSTAND
THE THREE DIMENSIONAL,
UH, UH, SELF-ASSEMBLY
OF THIS ANISOTROPIC PARTICLES
BY SEND THE PARTICLES
TO THE SPACE STATION.
BECAUSE SPACE STATION
IS THE MICROGRAM,
AND THEY DON'T-DON'T MASK
THE EFFECT OF THESE THINGS
BY GRAVITATIONAL PULL
OR GRAVITATIONAL EFFECT.
SO BY DOING THIS, WE CAN
UNDERSTAND HOW OUR SYSTEM,
UH, MAKING-- UH, NOT JUST
THE TWO-DIMENSIONAL,
UH, STRUCTURES,
BUT ALSO THE THREE-DIMENSIONAL
STRUCTURES IN SPACE.