Related Experiment Video
Updated: Feb 10, 2026

Functional Surface-immobilization of Genes Using Multistep Strand Displacement Lithography
Published on: October 25, 2018
Immobilization of actively thromboresistant assemblies on sterile blood-contacting surfaces
Zheng Qu1, Venkat Krishnamurthy, Carolyn A Haller
1Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School and the Wyss Institute of Biologically Inspired, Engineering of Harvard University, Boston, MA 02115, USA; Coulter Department of Biomedical Engineering, Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Abstract:
Rapid one-step modification of thrombomodulin with alkylamine derivatives such as azide, biotin, and PEG is achieved using an evolved sortase (eSrtA) mutant. The feasibility of a point-of-care scheme is demonstrated herein to site-specifically immobilize azido-thrombomodulin on sterilized commercial ePTFE vascular grafts, which exhibit superior thromboresistance compared with commercial heparin-coated grafts in a primate model of acute graft thrombosis.
Related Concept Videos
Contact-dependent Signaling
Gap Junctions
In animal cells, gap junctions are formed...
Protein Complex Assembly
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Contact Angle
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
Cleaning, Sterilization, and Disinfection
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Methods of Sterilization II: Chemical Methods
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Methods of Sterilization I: Physical Methods
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...

