A solution blow spinning (SBS) process was utilized to create nanofibers of TiO₂/C and TiO₂/C/N with potential applications in photocatalysis and dye adsorption. Polyvinylpyrrolidone was used as a carbon and nitrogen source. Their content in the TiO₂ structure decreased as the temperature increased from 350 to 550 °C. Physical-chemical, morphological, and structural features were investigated. Adsorption and photodegradation experiments revealed that the material calcined at 400 °C had higher dye removal (98%) under dark settings, whereas the greater photodegradation efficiency under visible and UV light was 56% and 98%, respectively, for the sample calcined at 550 °C. The results suggest that the SBS has the potential to develop an efficient adsorbent and photocatalyst for use in treatments of contaminated water.

Lectins are widely recognized for their ability to selectively bind carbohydrates, making them valuable proteins in biosensor design. In this work, we developed a label‐free electrochemical platform using jack bean [ Canavalia ensiformis (L.) DC.] lectin (ConA) immobilized on a Prussian Blue‐modified electrode to detect glucose from submicromolar levels. While ConA presents both electron‐rich and electron‐deficient regions due to the variety of functional groups along its peptide chain (e.g., COOH, OH, SH, in addition to Ca ²⁺ and Mn ²⁺ coordinated sites), Prussian Blue was selected for its biocompatibility, chemical stability, semiconducting behavior, and peroxidase‐mimicking activity, which enhanced signal amplification (3.94 × 10 ³ µA µmol L ⁻¹ cm ⁻² ) without compromising the lectin's biorecognition functionality. Using square‐wave voltammetry (25 Hz frequency, 40 mV amplitude, and 0.5 mV potential increment), the biosensor achieved a detection limit of 0.56 µmol L ⁻¹ glucose, with excellent precision (RSD ≤ 7.5% in intraday and interday tests) and high accuracy (RSD = 7.8% across different devices). The biosensor was successfully tested in glucose‐enriched commercial formulations (98.0% –103.5% recovery), demonstrating high electroanalytical performance despite the presence of potentially interfering additives such as dyes, antioxidants, mineral salts, and other carbohydrates. These findings highlight the potential of ConA‐based biosensors as simple and reliable platforms for analyzing free and conjugated glucose in complex samples.