Table 3: Influence of spray mesh size on final nano spray dried particle size in nm (n.a. = data not available).

Substance Solvent Concentration (% w/v) Mesh size Reference
4.0 µm 5.5 µm 7.0 µm
Chitosan (low-density) 0.5% acetic acid 0.025 95 215 265 [36]
Ethambutol Water 1 220 n.a. n.a. [66]
Gentamicin sulfate in alginate/pectin Water

0.1

0.25

0.5

310

345

405

520

550

610

850

980

1,000

[34]
Arabic gum Water

0.1

1

355

580

n.a. n.a. [10]
Whey protein Water

0.1

1

420

595

n.a. n.a. [10]
Sodium chloride Water

0.1

1

515

995

n.a. n.a. [10]
Disodium phosphate Water 0.1 500 n.a. n.a. [12]
Trehalose Water 0.1 800 n.a. n.a. [12]
Bovine serum albumin (with surfactant) Water

0.1

1

460

700

n.a.

1,700

n.a.

2,600

[14]
Sodium alginate Water 0.13 760 n.a. n.a. [67]
Vancomycin in chitosan 0.5% acetic acid 0.2 450 n.a. n.a. [68]
Curcumin in albumin Water 0.5 715 n.a. n.a. [69]
Salbutamol sulfate Water 1 1,000 1,600 3,100 [35]
Galactosidase in trehalose Water 5 1,800 4,500 4,900 [15]
CsH2PO4

Methanol:water

(56:44)

0.1

1

200

540

300

n.a.

500

n.a.

[54]
Calpain inhibitor steroid nanocrystals Ethanol

0.05

0.5

420

995

605

n.a.

845

n.a.

[32]
Fluorometholone Ethanol 0.1 620 795 855 [31]
Dexamethasone Ethanol 1 835 1,100 1,300 [31]
PLGA DCM 1 n.a. 3,200 4,200 [43]
Ethyl cellulose DCM 1 1,500 2,700 3,400 [42]
PLGA DCM

0.5

1

2

5

n.a.

n.a.

685

n.a.

570

760

830

1,100

n.a.

n.a.

930

n.a.

[33]