Skip navigation

Ding Wang

Postgraduate Research

Ding -wangA patterned surface with stimuli responsive properties attracts considerable interest for its importance in advanced engineering, partly due to its reversibility, easy design and control, good compatibility and responsive behavior to external stimuli. In this research, we have designed and fabricated a bilayer structure with a patterned surface which is capable of a dynamic on/off switching of a pattern responsive to the external compressive/tensile strain. A deformation map for describing the on/off switching of the void has been generated as a function of voids geometries (diameter, depth) and the applied strain. We have characterized the corresponding changes in the static and dynamic contact angles. Depending on the external mechanical inputs, we show that it is possible to control the droplet shape, its critical sliding angle, as well as its dynamics. The results provide a strategic solution on how to mimic the preferred pattern on a soft surface and to apply it in a micro-fluid environment, indicating a potential application as a liquid optical switch in a microfluidic device.

Supervisors

  • Dr. Ben Bin Xu
  • Prof. Glen McHale

a sign in front of a crowd
+

Northumbria Open Days

Open Days are a great way for you to get a feel of the University, the city of Newcastle upon Tyne and the course(s) you are interested in.

a person sitting at a table using a laptop
+
NU World Virtual Tours
+

Virtual Tour

Get an insight into life at Northumbria at the click of a button! Come and explore our videos and 360 panoramas to immerse yourself in our campuses and get a feel for what it is like studying here using our interactive virtual tour.

Latest News and Features

THE Impact rankings
Architecture Apprenticeship Handbook cover
Pictured from left to right are Northumbria University academics Dr Qiang Wu, Dr Juna Sathian, Professor Zabih Ghassemlooy, Dr Yongtao Qu and Dr Xicong Li.
Insights North East
gettyimages/Kobus Louw
Felicia Gottman
More news
More events

Upcoming events

Towards Relational Public Services Conference 2024
-
Northumbria University IP Showcase Event 2024
Advanced Clinical Practice: Addressing the challenges in Primary Care
Babel Lecture 2024

Back to top