Table 1: Types of nanocarriers for drug delivery.

Sr.
no.
System StructureCharacteristics Example of
compounds
References

1Polymeric micellesHydrophobic core and hydrophilic shell are formed by assembling amphiphilic block copolymer(a) Efficient carrier system for hydrophilic drug
(b) Biodegradable, self-assembling, and biocompatible
(c) Potential targeting
(d) Functional modification
PEG-b-p(LA-CO-MCG)
PEG-B-PCL
Curcumin micelles
[13]

2DendrimersSynthetic polymer forming nanosized branched structure with repeated units and regular pattern(a) Uniformity in size, shape, and branch length
(b) Tuned pharmacokinetics and biodistribution
(c) Increased surface area, increased loading
(d) Targeting is achieved
G4 PAMAM-D
DOX-PPI-FA
[3, 4]

3Liposomes Lipid bilayer memberane forming self assembled closed colloidal structures(a) Biocompatible
(b) Longer duration of circulation
(c) Amphiphilic
DOX-p18-4
Pegylated liposomal of doxorubicin
[1, 4]

4Carbon nanotubesBenzene ring forming carbon cylindrical structure(a) Multiple function
(b) Chemical modification
(c) Water soluble and biocompatible
SWNTs-PTX
SWNTs-siRNA

5NanorodsMetals or semiconducting materials forming rod shape structure.(a) Efficient loading
(b) Increased surface area
(c) Biocompatible
(d) Specific tumor targeting
HER-PEG-GNRs
ZnO-NRs-DNR
PPDME-ZnO-NRs
[1, 4, 5]

PEG-b-p(LA-CO-MCG)-CISPLATIN, PEG-B-PCL (polyethylene glycol-paclitaxel), G4 PAMAM-D (G4 polyamidoamine dendrimer), DOX-PPI-FA (doxorubicin-polypropylene imine-folic acid), DOX-p18-4 (doxorubicin-peptide ligands), SWNTs-PTX (single-walled carbon nanotubes-paclitaxel), SWNTs- siRNA (single-walled carbon nanotubes-small interfering RNA), HER-PEG-GNRs (herceptin-polyethylene gold nanorods), ZnO-NRs-DNR (zinc oxide- nanorods daunorubicin), PPDME-ZnO-NRs (protoporphyrin dimethyl ester-zinc oxide-nanorods).