Dr. Hailin Cong
The NewScientist article Smart contact lens feels the pressure of glaucoma said
A contact lens with a built-in pressure sensor that could help monitor conditions such as glaucoma has been made by researchers in the US.
Materials scientists Hailin Cong and Tingrui Pan at the University of California, Davis, US, have come up with a simple method to produce PDMS components without the need for casting moulds. Their process can also make the material conduct electricity.
They added a chemical to a liquid PDMS solution which causes the mixture to set, or polymerize, when zapped with UV light.
Cong and Pan then exposed the mixture to UV light through a mask containing a circuit pattern. Only the areas hit by the light polymerize and any remaining liquid can be washed away, leaving an imprint of the circuit.
The technique can be used to create features just 10 micrometers in size.
Hailin Cong, Ph.D. is Post-doc, Biomedical Engineering
Department, University of California-Davis, USA.
Hailin is researching a “Bio-Artificial implant for glaucoma
treatment” which is supported by a
major
bio-instrumentation company. This polymer/hydrogel based eye-implant
device
is fabricated for the treatment of glaucoma. He is researching the
anti-protein/bacteria-fouling, microfluidic cellular separation, drug
delivery, biocompatibility, and bio-integration properties of the device.
At the same time, polymer/nanoparticle based
materials such
as PDMS-Ag are being studied by him for the interest of MEMS and
biomedical
engineering.
He coauthored
Colloidal Crystallization Induced by Capillary Force,
Ionene-dynamically coated capillary for analysis of urinary and
recombinant human erythropoietin by capillary electrophoresis and online
electrospray ionization mass spectrometry,
Investigation of microtribological properties of C60-containing
polymer
thin films using AFM/FFM,
Preparation of Stable Colloidal Crystals and Macroporous Materials
Using
Diazoresin as a Thermosetting Agent,
Synthesis of Calcite Single Crystals with Porous Surface by
Templating
of Polymer Latex Particles, and
Narrowly dispersed micrometer-sized composite spheres based on
diazonium-polystyrene.
Hailin earned his B.E. in Polymer Science at the Qingdao University of
Science and Technology, China in 1998, his M.E. in Materials Science
at the Qindao University of Science and Technology, China in 2001, and
his Ph.D. in Polymer Chemistry and Physics at Peking University, China
in 2004.