AVS 65th International Symposium & Exhibition
    In-situ Microscopy, Spectroscopy, and Microfluidics Focus Topic Monday Sessions
       Session MM+AS+NS+PC-MoM

Paper MM+AS+NS+PC-MoM10
Electron Beam Induced Cross-Linking in Liquid Hydrogels

Monday, October 22, 2018, 11:20 am, Room 202B

Session: Mechanical, Electrical, Thermal and Optical Systems for In situ TEM (9:00-10:100 am)/Beam Induced Effects and Processing in Liquid/Gas Cells for TEM/SEM (10:40-11:40 am)
Presenter: Tanya Gupta, National Institute of Standards and Technology (NIST)
Authors: T. Gupta, National Institute of Standards and Technology (NIST)
A. Kolmakov, National Institute of Standards and Technology (NIST)
Correspondent: Click to Email

Advances in additive manufacturing of bio-friendly polymeric materials over the last decade has revolutionized the diverse fields like rapid prototyping, tissue engineering, drug delivery etc. The technology currently relies on laser, thermal or UV induced 3D printing. Other triggers with similar effects can in principle be used as ionizing radiation to carry out the crosslinking. In this work we explore the use of electron beam to perform 3-D patterning at mesoscale and explore its potential towards rapid prototyping. In particular, knowledge of electron interaction with the printing ink allows us to predict effect of various control parameters like beam energy , current and dwell time on the topology of the features formed. A Monte-Carlo simulation coupled with a rigorous kinetic model is built to study the interplay of dose distribution, total interaction volume and diffusional effects of the active radiolytic species.