| PS | polystyrene |
| HDPE | high-density polyethylene |
| SU-8 | ultraviolet curable epoxy |
| PUA | polyurethane acrylate |
| PC | polycarbonate |
| PDMS | polydimethyl siloxane |
| PP | polypropylene |
| PSA | pressure sensitive adhesive |
| PI | polyimide |
| CNT | carbon nanotube |
| PE | polyethylene |
| Pt | platinum |
| Al | aluminum |
| DPS | Directional Polymer Stalks |
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