Table 2 The calculated effective concentration of all nanoparticles tested (shown in mg/mL) for a 50% reduction relative to the positive media control (EC50) for both cell proliferation and viability at all exposure times tested

From: Systematic design of polybasic nanogels: influence of hydrophobic monomers on tunable physicochemical and biological properties

   

2 h

24 h

Formulation

pKaa

pH_criticalb

Cell Viabilityc

Cell Proliferationc

Cell Viabilityc

Cell Proliferationc

Original Particle (None)

7.5

7.36

0.71

>2.0

0.11

0.69

Methyl Methacrylate

7.7

7.56

0.91

>2.0

0.1

0.71

Ethyl Methacrylate

7.17

7.1

0.87

>2.0

0.13

0.68

Isopropyl Methacrylate

7.05

7.1

1.33

>2.0

0.11

0.97

tertButyl Methacrylate

6.9

6.85

1.62

>2.0

1.54

>2.0

Phenyl Methacrylate

6.81

6.75

1.61

>2.0

1.51

1.93

Cyclohexyl Methacrylate

6.56

6.6

>2.0

>2.0

>2.0

>2.0

Benzyl Methacrylate

6.7

6.65

>2.0

>2.0

>2.0

>2.0

Butyl Methacrylate

6.7

6.9

>2.0

>2.0

>2.0

>2.0

Hexyl Methacrylate

6.2

6.7

>2.0

>2.0

>2.0

>2.0

2-Ethylhexyl Methacrylate

5.9

6.45

>2.0

>2.0

>2.0

>2.0

  1. aEstimated from TFA assay.
  2. bCalculated from DLS.
  3. cValue shown as mg/ml of nanoparticle.