Draft:Structural nanomedicine
design of architecturally precise nanoscale therapeutics
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Structural nanomedicine is a field focused on the deliberate design of nanoscale therapeutics with precise compositions and architectures to optimize efficacy and safety. Structural nanomedicines emphasize molecularly defined designs where composition, spatial arrangement, and linker chemistry are systematically controlled. Small structural modifications can significantly influence therapeutic performance, including cellular uptake, circulation, immune activation, and target engagement.[1][2][3]
| Submission declined on 10 January 2026 by WeirdNAnnoyed (talk). This draft's references do not show that the subject meets Wikipedia's criteria for inclusion. The draft requires multiple published secondary sources that:
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| Submission declined on 20 September 2025 by Shocksingularity (talk). This draft reads like an essay or opinion piece. Wikipedia is not a place for original research or personal opinions. The draft should:
Declined by Shocksingularity 6 months ago.
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Comment: See WP:COATRACK. Only the first reference really defines the term "structural nanomedicine"; the rest of the article is a list of cherry-picked examples segmented to look like an article. The "principles and design" section should be the bulk of the article, as this is where the term can be fully defined and developed, but it's three incredibly vague platitudinal sentences cited to two primary articles on RNA therapeutics. The article is obviously LLM output, to boot. The subject is notable (if a little buzzwordy), but this article needs a total rewrite to cover it properly. WeirdNAnnoyed (talk) 13:58, 10 January 2026 (UTC)
Background
Traditional pharmaceuticals were dominated by small molecules, where minor chemical changes (e.g., stereochemistry) could dramatically alter biological activity.[4] Biologics, including nucleic acids, peptides, and proteins, have since become the largest drug class, offering greater complexity and customization.[5] Early structural nanomedicines such as lipid nanoparticle (LNP) mRNA vaccines and liposomal constructs[6], are effective but structurally heterogeneous, with particle-to-particle variability influencing pharmacokinetics.
Principles and Design
Nanomedicines are being improved through deliberate, atomically precise design, enabling highly optimized therapeutics. Progress relies on interdisciplinary collaboration across chemistry, physics, materials science, biology, and medicine, with applications spanning cancer, infectious diseases, and autoimmune diseases. In the current wave of development, structural nanomedicines are advancing toward molecularly precise architectures that can be systematically altered and studied in an effort to make drugs with greater potency and more attractive safety profiles.[7][8]
Key classes of structural nanomedicines
Structural nanomedicines highlight structure as a critical design parameter alongside composition.
Lipid Nanoparticles (LNPs)
Lipid particle delivery systems, including the COVID-19 mRNA vaccines. These structures package the genetic mRNA component inside a lipid particle structure. In the case of the lipid particle mRNA vaccines for COVID-19, the mRNA snippets encode for the COVID-19 virus’s spike protein. Upon production and recognition, immunity against this protein is bolstered.[9]
Spherical Nucleic Acids (SNAs)
Spherical nucleic acids (SNAs), nanoparticle cores surrounded by radially oriented nucleic acids, were first described by Chad Mirkin (1996). SNAs show enhanced cellular uptake, nuclease resistance, and low toxicity compared with linear nucleic acids of the same sequence. SNAs are being used for gene regulation, CRISPR-based gene editing[10], and immunotherapy. Clinically, they are under investigation for the treatment of glioblastoma, acute myeloid leukemia (AML), psoriasis, squamous cell carcinoma, and Merkel cell carcinoma, with some forms leading to complete remission in checkpoint inhibitor–refractory cancers. [11][12]
MegaMolecules
MegaMolecules, introduced by Milan Mrksich, are multifunctional mimics of antibodies composed of fusion proteins joined with linkers.[13] They can incorporate binding domains, drugs, contrast agents, and radionuclides to achieve functionalities that make them useful in the detection and treatment of cancers.
Chemoflares and RNA-responsive constructs
Chemoflares are cell-responsive structural nanomedicines, designed to release therapeutic drugs only when they encounter disease-specific conditions inside the body, such as the unique environment of cancer cells. Developed by Chad Mirkin and Natalie Artzi, chemoflares stay inactive in healthy tissue but “flare” into action via cellular cues from diseased cells. This targeted activation improves treatment precision and reduces side effects.[14]
Protein-like Polymers (PLPs)
Protein-like Polymers (PLPs), invented by Nathan Gianneschi, are synthetic macromolecules designed to mimic the structure and function of natural proteins. They are built from polymer backbones densely grafted with peptide side chains, forming brush-like architectures that can fold, bind targets, and perform biological functions similar to proteins. These PLPs have been engineered to interact with specific receptors or disrupt disease-related protein interactions, showing promise for treating conditions such as macular degeneration and neurodegenerative diseases.[15]
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