Biopolymer Nanoparticle Fabrication and Applications

Biopolymer nanoparticles represent a burgeoning class of materials derived from natural macromolecules such as proteins, polysaccharides and nucleic acids. Fabrication techniques range from self-assembly and ionic gelation to advanced microfluidic emulsification and enzymatic crosslinking. These approaches enable precise control over particle size, morphology and surface chemistry, tailoring functional properties for diverse applications. In the biomedical realm, biopolymer nanoparticles serve as carriers for targeted drug delivery, imaging agents and vaccine adjuvants, offering biocompatibility, biodegradability and minimal toxicity. In food and agriculture, they stabilise emulsions, protect sensitive nutrients and mediate controlled release of pesticides or fertilisers. Environmental applications include water purification and pollutant sequestration through selective adsorption. Recent advances have focused on scalable production methods, surface functionalisation with ligands or responsive moieties, and integration of multiple biopolymer components to achieve core–shell architectures. Together, these developments underline the global significance of biopolymer nanoparticle platforms in enabling sustainable, multifunctional technologies that bridge life sciences, materials engineering and environmental stewardship.

Research from Nature Portfolio

Recent studies have demonstrated a microfluidic strategy for the continuous production of protein–polysaccharide nanoparticles with narrow size distributions and tunable surface charge, enhancing reproducibility for clinical translation. Elsewhere, enzymatic crosslinking of alginate and chitosan in droplet microreactors has yielded monodisperse nanogels capable of encapsulating growth factors for tissue-engineering scaffolds. Surface modification by grafting short peptide motifs onto polysaccharide shells has been shown to improve cellular uptake and endosomal escape, advancing targeted gene delivery in experimental models.

Biopolymer Nanoparticle Fabrication and Applications publication trend

The graph below shows the total number of articles in biopolymer nanoparticle fabrication and applications across all publications each year (not limited to Nature Index journals).

Technical terms

Biopolymer: A naturally derived polymer such as proteins or polysaccharides used to form nanoparticles.

Nanoparticle: A particle with dimensions in the 1–100 nm range, exhibiting unique size-dependent properties.

Self-assembly: Spontaneous organisation of molecules into structured aggregates driven by noncovalent interactions.

Microfluidics: The manipulation of fluids in channels of micrometre dimensions to produce uniform particles.

Electrostatic complexation: Assembly of oppositely charged biopolymers into nanoparticles via ionic interactions.

Zeta potential: The electric potential at the slipping plane of a particle in suspension, indicating colloidal stability.

Encapsulation efficiency: The proportion of a payload (drug, nutrient) successfully entrapped within nanoparticles.

References

1. Influence of thermal denaturation on whey protein isolates in combination with chitosan for fabricating Pickering emulsions: a comparison study. Frontiers in Nutrition (2024).
2. Biocompatible Preparation of Beta-Lactoglobulin/Chondroitin Sulfate Carrier Nanoparticles and Modification of Their Colloidal and Hydropathic Properties by Tween 80. Polymers (2024).
3. Enhanced Antibacterial Efficiency and Anti-Hygroscopicity of Gum Arabic–ε-Polylysine Electrostatic Complexes: Effects of Thermal Induction. Polymers (2023).