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BCDs, characterized by FTIR, Raman spectroscopy, and photoluminescence analyses, exhibited abundant surface functional groups and excellent fluorescence properties. The integration of BCDs into the hydrogel matrix enhanced the mechanical strength, imparted pH-responsive drug release behavior, and maintained the structural integrity under physiological conditions. In vitro release studies using ibuprofen as a model drug demonstrated faster release under acidic conditions (pH 3.8) than under neutral and alkaline pH, aligning with pathological microenvironments. The drug release kinetics were best described by the Higuchi model, indicating a diffusion-controlled mechanism. Cytotoxicity assays confirmed the high biocompatibility of both free BCDs and BCD-loaded hydrogels, with sustained cell viability over five days. The combination of bio-derived nanomaterials, tunable release properties, and excellent cytocompatibility highlight the potential of this system for targeted and environmentally sustainable drug delivery applications. 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