| BBB | blood–brain barrier |
| BSA | Bovine serum albumin |
| DMEM | Dulbecco’s Modified Eagle’s Medium |
| ECM | Extra cellular matrix |
| EthD-1 | Ethidium homodimer-1 |
| MCTS | Multi cellular tumor spheroid |
| PBS | Phosphate buffered saline |
| PDMS | Polydimethylsiloxane |
| PVA | Polyvinyl alcohol |
| SD | Standard deviation |
| 2D | 2 dimensions |
| 3D | 3 dimensions |
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