ArticleScientific reports2026
Doxorubicin-loaded gold nanoparticles for enhanced anticancer efficacy: in vitro, in vivo, and FTIR-based tissue analysis.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The most challenging aspects of cancer treatment are multi-drug resistance (MDR) and damage to normal, non-malignant cells. Doxorubicin (Dox)-loaded gold nanoparticles (Dox@AuNPs) were developed and evaluated for enhanced anticancer activity. The nanocomposites exhibited spherical morphology (13 ± 3 nm) with a loading efficiency of 52%. In vitro, Dox@AuNPs reduced the IC₅₀ by approximately 50% compared to free Dox in MCF-7 cells. In vivo, treatment significantly suppressed tumor growth and increased median survival (62 days) relative to free Dox (52 days). In addition to conventional efficacy evaluation, Fourier transform infrared (FTIR) spectroscopy was applied to analyze biochemical changes in tumor tissues. Distinct alterations in protein, lipid, and nucleic acid-associated bands were observed, with treated tissues showing partial spectral shifts toward normal profiles. These findings suggest that FTIR may provide additional insight into tissue-level biochemical responses following treatment. While further validation and toxicity assessment are required, the results demonstrate that Dox@AuNPs enhance anticancer efficacy and highlight the potential utility of FTIR as a complementary tool for evaluating therapeutic response.
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