Nanoparticle Design for Drug Delivery Applications

Advances in nanoparticle design have revolutionised the delivery of therapeutic agents by improving solubility, targeting specificity and controlled release. Core considerations include choice of material—ranging from lipids and polymers to inorganic frameworks—alongside precise control of size, shape and surface chemistry. Spherical platforms often offer ease of fabrication and predictable pharmacokinetics, whereas elongated or wormlike morphologies can enhance tissue penetration and evade rapid clearance. Surface functionalisation with polyethylene glycol or targeting ligands extends circulation half-life and directs payloads to specific cell types or microenvironments. Encapsulation strategies employ amphiphilic block copolymers, lipid bilayers or inorganic matrices to protect drugs from degradation and to trigger release under defined stimuli such as pH, temperature or enzymatic activity. Biocompatibility and biodegradability remain paramount to minimise off-target toxicity, while scalable manufacturing approaches—such as microfluidics or solvent-free hydration—seek to translate laboratory formulations into clinical candidates. By integrating multidisciplinary insights from materials science, cell biology and pharmacology, modern nanoparticle platforms aim to deliver potent therapies with enhanced efficacy and reduced side effects.

Research from Nature Portfolio

Recent studies have demonstrated how nanoparticle architecture dictates both therapeutic performance and safety. In one investigation, antibody–drug nanorods comprising paclitaxel cores conjugated to trastuzumab achieved synergistic inhibition of HER2-positive breast cancer cells, combining selective targeting with mitotic arrest and caspase-mediated apoptosis. Another report examined the cytotoxic consequences of shape variation in PLGA-PEG nanoparticles, revealing that needle-like particles induced lysosomal disruption and apoptosis more readily than their spherical counterparts, emphasising the critical influence of geometry on cell compatibility. Collectively, these works underscore the importance of tailoring both chemical composition and physical shape to optimise delivery efficacy while mitigating undesired cellular responses.

Nanoparticle Design for Drug Delivery Applications publication trend

The graph below shows the total number of articles in nanoparticle design for drug delivery applications across all publications each year (not limited to Nature Index journals).

Technical terms

Amphiphilic block copolymer: A macromolecule composed of covalently linked hydrophobic and hydrophilic segments that self-assemble into micelles or vesicles.

Endocytosis: Cellular process by which extracellular materials are internalised through membrane invagination, encompassing clathrin- and caveolin-dependent pathways.

Ligand functionalisation: The attachment of specific molecules to nanoparticle surfaces to promote binding to target cell receptors.

Stimuli-responsive release: Controlled drug discharge triggered by environmental cues such as pH, temperature or enzyme presence.

Biodistribution: The spatial and temporal distribution of nanoparticles within biological tissues and organs following administration.

References

1. Selective Uptake Into Inflamed Human Intestinal Tissue and Immune Cell Targeting by Wormlike Polymer Micelles. Small (2023).
2. Shape effect in active targeting of nanoparticles to inflamed cerebral endothelium under static and flow conditions. Journal of Controlled Release (2019).
3. Shape dependent cytotoxicity of PLGA-PEG nanoparticles on human cells. Scientific Reports (2017).
4. Antibody–drug nanoparticle induces synergistic treatment efficacies in HER2 positive breast cancer cells. Scientific Reports (2021).
5. Exploiting Endocytosis for Non-Spherical Nanoparticle Cellular Uptake. Nanomanufacturing (2022).