Table 1 Features of different nanoparticles

From: Current advance of nanotechnology in diagnosis and treatment for malignant tumors

Types of NPs

Advantages

Disadvantages

Polymeric NPs

Natural polymers

Biocompatibility and degradability, Excellent transmucosal capability

Low stability

Synthetic polymers

High stability, bioavailability and loading capacity

Tissue accumulation, Low degradability, Unfavorable side effects

Liposomes

 

Excellent biocompatibility, Wide adaptability to drugs, Reduced adverse effects, avoiding bio-clearance of agents

Low storage of lipophilic molecules, opsonization, immunogenicity and instability, High costs

Micelles

 

Alleviating toxicity, Enabling transportation of lipophilic drugs, Reducing the uptake by macrophages, Prolonging the circulation time, Targeting drug release

Instability in vivo, Low solubility of small size particles, Low drug loading capacity

Hydrogels

 

High biocompatibility, High drug loading capacity, Controllable and adjustable of drug release, Highly adjustable chemical and physical properties

Fast clearance, Off-target accumulation

Extracellular vesicles

 

Targeted drug delivery, High biocompatibility, Loading a large variety of cargos

Difficult for isolation, purification and differential recognition, Abnormal accumulations in the liver

Natural membrane-coated NPs

 

Prolonging the blood circulation time, Evading clearance from immune system, Boosting therapeutic effects, Improving target capabilities

Complexity of scale-up manufacturing, Accumulating in livers or reticuloendothelial systems, Difficulties with purification and storage

Virus

 

Outstanding targeting capability, Potential in immunotherapy or vaccination strategies

Lacking of clinical translation

Inorganic NPs

Mesoporous silica

Easy functionalization and surface modification, High capacity of storing drugs, Simple production process

High costs

Gold NPs

Low toxicity, High stability, Simple synthesis, Bioconjugation of desired molecules, Efficient light-to-heat conversion

Prone to accumulating in tissue and toxicity potential, Unsatisfactory clinic treatment outcomes

Carbon nanomaterials

Excellent optical properties, Thermal conductivity, Electrical conductivity, Chemical stability, Functionalization

Potential problems of biosafety