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Open research questions in Nanoplatforms for cancer theranostics

34 unresolved questions extracted from the limitations and future-work sections of 394 Nanoplatforms for cancer theranostics papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • ABSTRACT Lanthanide‐doped downshifting nanoparticles (DSNPs) emitting in the near‐infrared‐II (NIR‐II) window offer distinct advantages for deep‐tissue optical applications, yet their practical utility is fundamentally constrained by excitation limited to a few discrete wavelengths.

    Multi‐Band Excitation of NIR‐II Lanthanide Nanoparticles via Multiple‐Dye Cascade Sensitization · 2026 · DOI

  • Abstract The efficacy of conventional therapies against glioblastoma (GBM) is limited by a hierarchical defense system comprising the blood-brain barrier (BBB) that restricts the entry of most therapeutic drugs, physical-chemical barriers of tumor that hinder drug penetration and retention, and intrinsic or adaptive metabolic reprogramming that empowers treatment resistance, collectively rendering over 98% of therapeutic agents ineffective.

    Storming glioblastoma’s fortress: kaempferol-powered spatiotemporal nanotherapy hierarchically breaking-capturing-disarming tumor defenses via programmable metabolic phototherapy amplification · 2026 · DOI

  • The current work mainly demonstrates short-term therapeutic efficacy and biosafety in a subcutaneous tumor model, whereas the long-term fate of the released Ru(II) complex, PDA nanoparticles, and IR780 after hydrogel degradation remains to be fully defined.

    Dual-responsive polypyridyl Ru(II)-scaffolded hydrogel for trinitarian tumor therapy activated by mono-wavelength photo-irradiation · 2026 · DOI

  • Future research is focused on personalized nanomedicine, smart nanoparticles, theranostic systems, and advanced nano-vaccines. Continued development in this field may lead to safer, more effective, and patientspecific cancer therapies. © 2026 The Author(s). Published by IJCOPE Journal.

    Nanotechnology in Cancer Immunotherapy · 2026 · DOI

  • Radiotherapy and Immunotherapy Combining immunotherapy with radiation is an exciting field of current study. By altering the tumor microenvironment, releasing cytokines and chemokines, encouraging leukocyte infiltration, and making tumor cells more vulnerable to immunogenic cell death, radiotherapy affects the immune system in a number of ways. Ionizing INTERNATIONAL JOURNAL OF PHARMACEUTICAL SCIENCES 2417 | P a g e Ashok Bendgude, Int. J. of Pharm. Sci., 2026, Vol 4, Issue 5, 2406-2427 | Review radiation can act as an in situ personalized vaccine in some patients, enhancing immunogenicity and improving the effects of immunotherapy by amplifying danger signals(86). Recent evidence from clinical trials supports these preclinical findings, showing that patients who underwent radiotherapy before immunotherapy had better overall survival (OS). This implies that radiation therapy and immune checkpoint inhibitor therapy may even synergistically(87).

    Advances in Lung Cancer: Diagnostics, Molecular Pathways, and Emerging Therapeutic Strategies · 2026 · DOI

  • The future interface of nanotechnology, immunology, and data science holds promising opportunities to overcome the limitations and realize the full potential of silica nanocar- riers in cancer immunotherapy. Recent versions of silica nanocarriers are being developed to respond dynamically to tumor- or immune-specific cues, utilizing the properties of next-generation silica nanocarriers. Time- and space-depen- dent control of the delivery of immunotherapeutic payloads can be achieved using stimuli-responsive architectures, such as pH-, redox-, enzymatic-, or inflammation-sensitive archi- tectures. Such systems can enhance treatment synergy and minimize systemic toxicity, particularly with intricate com- bination immunotherapy regimens [179]. Immunoprofiling and tumor genomics are creating opportunities for the trend of personalized immunotherapy. Silica nanocarriers provide an adaptable platform for diverse therapeutic applications, including personalized cancer vaccines and tailored com- bination therapy. Silica nanocarriers can improve response rates and stability for clinical use by modulating a patient’s immune response through payload composition and release profiles. Machine learning and AI are emerging as viable tools for designing and optimizing nanocarriers [180]. Data-driven methods can be used to predict structure– function relationships, optimize formulation parameters, and select the most appropriate combinations of immuno- therapeutic agents, thereby reducing reliance on trial-and- error approaches and shortening the development time of silica nanocarriers, enhancing the efficiency of the transla- tion process. Subsequent patenting is more integrated and complex, encompassing multi-stimuli-responsive and adap- tive release systems, as well as AI-supported formulation systems. The innovation wave is anticipated to be highly innovative, with patents having high mechanistic rationality, clinical applicability, and manufacturability. Positioning in this highly competitive environment will be a key part of commercializing silica combination immunotherapies, leveraging strategic IP [181].

    Silica based nanocarriers for combination immunotherapy targeting the tumor immune microenvironment · 2026 · DOI

  • 2.4.1 Preclinical research advances Smart, responsive multifunctional nanoplatforms have demon- strated significant therapeutic potential in preclinical bladder cancer studies, with multiple nanotechnologies achieving promising FIGURE 6 Schematic diagram of tumor microenvironment regulation strategies.

    Application and challenges of smart responsive multifunctional nanoplatforms in integrated diagnosis and treatment of bladder cancer and overcoming therapeutic resistance · 2026 · DOI

  • This review systematically summarizes precision strategies using magnetic nanoparticles (MNPs) for treating bacterial infections across diverse anatomical sites. The therapeutic efficacy of MNPs depends on the infection context and is optimized through precise control of their physicochemical properties. Material systems and energy delivery modalities must be tailored to the specific anatomical and pathological characteristics of superficial, deep- infections. By combining tissue, and cavity/implant-interface magnetic effects, targeting, multifunctional drug delivery, and multimodal imaging, MNPs for drug-resistant and biofilm- provide versatile solutions associated infections, showing particular promise in chronic wounds, osteomyelitis, and implant-related infections. magneto/photothermal Future development of MNP-based antibacterial therapy will focus on intelligent design, theranostic integration, synergistic enhancement, and multi-technology convergence. Intelligent MNPs will respond dynamically to multiple signals within the infection microenvironment, enabling cascaded responsiveness and feedback regulation. Theranostic platforms will integrate high-resolution multimodal imaging with therapy, forming a closed-loop system for image-guided intervention and real-time monitoring. Synergistic approaches may combine MNP-mediated physical antibacterial effects with immunotherapy or phage therapy, while convergence with flexible electronics, microfluidics, and magnetically controlled microrobots will drive antibacterial therapy toward digitization and personalized medicine.

    Precision intervention based on infection site: strategies and advances of magnetic nanomaterials in bacterial therapy · 2026 · DOI

  • The mechanism of viral inactivation involves ROS-mediated damage to envelope proteins, lipid membranes, and potential nucleic acid damage, plus direct interaction with thiol groups on viral surface proteins; the relative contribution of each mechanism and their dependence on microenvironment conditions in platinum nanoparticle systems requires quantitative mechanistic characterization.

    Revolutionizing infection control in ICUs: photocatalytic binder materials with platinum nanoparticles · 2026 · DOI

  • The durability and sustained antimicrobial efficacy of binder-incorporated platinum nanoparticle materials under repeated cleaning and disinfection protocols in actual healthcare environments remains untested; longitudinal studies simulating ICU operational conditions are needed to validate real-world performance.

    Revolutionizing infection control in ICUs: photocatalytic binder materials with platinum nanoparticles · 2026 · DOI

  • Preliminary investigations demonstrated efficacy against fungal pathogens (Aspergillus niger, Penicillium citrinum, Cladosporium sphaerospermum, Trichophyton mentagrophytes), but these results were not presented in the manuscript; formal validation and quantitative efficacy data for these fungal organisms against the photocatalytic binder materials are required.

    Revolutionizing infection control in ICUs: photocatalytic binder materials with platinum nanoparticles · 2026 · DOI

  • The platinum nanoparticle binder materials have been tested against only two viral pathogens (Influenza A and Feline Calicivirus); efficacy against clinically relevant drug-resistant bacterial species including MRSA, CRE, and VRE must be systematically evaluated to establish broad-spectrum antimicrobial potential in ICU settings.

    Revolutionizing infection control in ICUs: photocatalytic binder materials with platinum nanoparticles · 2026 · DOI

  • Although the study compared different combinations of BME and Trolox with SQ in single-molecule experiments, the long-term storage stability, shelf-life, and degradation kinetics of SQ-based oxygen-scavenging solutions were not characterized, limiting practical application in routine biosensing workflows.

    Squalene-based oxygen-scavenging system for enhancing fluorescent dye stability for biosensing applications · 2026 · DOI

  • The paper noted significantly increased blinking behavior after prolonged incubation in the GOD imaging buffer but did not investigate the mechanism of SQ-induced reduction in photoblinking or quantify the blinking kinetics (on-time, off-time distributions) compared to conventional oxygen-scavenger systems.

    Squalene-based oxygen-scavenging system for enhancing fluorescent dye stability for biosensing applications · 2026 · DOI

  • The study demonstrated SQ efficacy in smFRET experiments with single biomolecules in TIRFM, but did not evaluate its applicability to other single-molecule fluorescence techniques such as smFRET in solution, total internal reflection fluorescence recovery after photobleaching (TIRF-FRAP), or fluorescence correlation spectroscopy (FCS) where oxygen scavenging requirements may differ.

    Squalene-based oxygen-scavenging system for enhancing fluorescent dye stability for biosensing applications · 2026 · DOI

  • While the paper reports that SQ showed superior photophysical parameters and satisfactory radical oxygen activity and pH values compared to conventional glucose oxidase/catalase systems, the specific stability conditions and buffer composition ranges (pH, temperature, ionic strength) under which SQ maintains performance superiority were not systematically characterized.

    Squalene-based oxygen-scavenging system for enhancing fluorescent dye stability for biosensing applications · 2026 · DOI

  • The study compared SQ with BME and Trolox combinations in TIRFM single-molecule experiments, but did not systematically evaluate SQ performance across different fluorophore classes (e.g., cyanine dyes, xanthene dyes, naphthalimides) to determine whether the oxygen-scavenging superiority generalizes beyond the tested dyes.

    Squalene-based oxygen-scavenging system for enhancing fluorescent dye stability for biosensing applications · 2026 · DOI

  • However, cross-effects resulting from modifications, whether introduced externally or occurring spontaneously during application, such as the influence of metal ion chelation on photothermal therapy (PTT) efficiency and the effect of PTT-induced temperature changes on MRI contrast, remain poorly understood.

    In Vitro and In Silico Evaluation of Metal Ion Chelated Natural Melanin Nanoparticles on Photothermal Therapy and Magnetic Resonance Performance · 2025 · DOI

  • Abstract Single-atom catalysts (SACs) have attracted interest in photodynamic therapy (PDT), while they are normally limited by the side effects on normal tissues and the interference from the Tumor Microenvironment (TME).

    Tumor-activated in situ synthesis of single-atom catalysts for O2-independent photodynamic therapy based on water-splitting · 2024 · DOI

  • Sonodynamic therapy (SDT) is a noninvasive technique for local antitumor treatment; however, its clinical application is often limited by the low tumor accumulation of SDT agents, tumor's hypoxic microenvironment, and cytoprotective effects of autophagy.

    Conjugation of Macrophage-Mimetic Microalgae and Liposome for Antitumor Sonodynamic Immunotherapy via Hypoxia Alleviation and Autophagy Inhibition · 2023 · DOI

  • We emphasize that while the associations are strong (nearly ideal correlations), direct causation remains to be proven. However, a key limitation remains: these correlations are driven by condition-level summaries.

    Hypericin-loaded small extracellular vesicles increase photodynamic therapy and remodel miRNA–mRNA axes in AGS gastric cancer cells · 2026 · DOI

  • A facile approach for constructing bright NIR-II J-aggregates using prevalent donor-acceptor (D-A) molecules is still lacking.

    Facilely Achieving Near-Infrared-II J-Aggregates through Molecular Bending on a Donor–Acceptor Fluorophore for High-Performance Tumor Phototheranostics · 2024 · DOI

  • Abstract Although zeolitic imidazolate framework‐8 (ZIF‐8) has been applied in various tumor therapies, the intrinsic immunogenicity remains unclear.

    ZIF‐8 Nanoparticles Evoke Pyroptosis for High‐Efficiency Cancer Immunotherapy · 2023 · DOI

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34 open questions have been extracted from the limitations and future-work passages of 394 Nanoplatforms for cancer theranostics papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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