Materials
| Name | Company | Catalog Number | Comments |
| Ethanol | Fisher | 32221 | |
| Anhydrous dimethylformamide (DMF) | Sigma | 270547 | |
| Ammonium hydroxide 50% (v/v) aqueous solution | Alfa Aesar | 35574 | diluted to 30% (v/v) with pure water |
| TEOS | Sigma | 13190-3 | |
| 3-Aminopropyltriethoxysilane (APTES) | Sigma | A3648 | |
| 5-(and-6)-carboxyfluorescein, succinimidyl ester (FAM-SE) | Invitrogen | C1311 | |
| 6-carboxytetramethylrhodamine, succinimidyl ester (TAMRA-SE) | Invitrogen | C1171 | |
| Sodium phosphate monobasic (0.2 M) | Sigma Aldrich | S-9638 | |
| Sodium phosphate dibasic (0.2 M) | Sigma Aldrich | S-0876 | |
| NaOH | Sigma Aldrich | S8045 | |
| Trypsin/EDTA | Sigma Aldrich | T4174 | |
| Penicillin/Streptomycin | Sigma Aldrich | P0781 | |
| PBS | Sigma Aldrich | D8537 | |
| DMEM | Sigma Aldrich | D6046 | |
| FBS | Source Bioscience | Batch-213-101992 | |
| L-Glutamine | Sigma Aldrich | G7513 | |
| Lipofectamine 2000 | Invitrogen | 11668-019 | |
| Optimem | Invitrogen | 11058-021 | |
| LysoTracker Red | Invitrogen | L-7528 | |
| Draq5 | Biostatus Ltd | DR50050 | |
| Nitrogen gas | BOC | ||
| DCM | Sigma Aldrich | 320269 | |
| TFA | Sigma Aldrich | T6508 | |
| Confocal microscope | Leica TCS-SP | equipped with argon and krypton lasers and a 63X 0.9NA water immersion lens | |
| UV light | UVLS28 UVP, USA | ||
| Stirrer plate | SB161-3 Jencons-PLS | ||
| pH meter | Jenway model 3510 | ||
| Rotary Evaporator | Buchi Rotary Evaporator R200 | ||
| Centrifuge (nanosensors) | Hermle Z300 | ||
| Centrifuge (cell culture) | Thermo Scientific Heraeus Biofuge Primo | ||
| Vortex | Whirlimixer Fisherbrand | ||
| Ultrasonicator | FB11021 Fisherbrand | ||
| Aluminum sheet | Nottingham University | ||
| 35mm cell culture plate | Iwaki | 3000035 | |
| 10 ml syringe | Becton Dickenson | ||
| 3T3 Fibroblast cells | European Collection of Cell Cultures | ||
| PLGA | Lakeshore Biomaterials | 7525 DLG 7E | |
| Pyridinium formate | Sigma Aldrich | P8535 | |
| Trypan blue | Sigma Aldrich | T8154 | |
| Sodium phosphate monobasic | Sigma Aldrich | S9638 | |
| Sodium phosphate dibasic | Sigma Aldrich | S5136 | |
| HCl | Sigma Aldrich | 320331 |
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