In this work, hybrid composites based on beads of alginate, boehmite and riboflavin-5′-phosphate dye (ALG-B-RP) were synthesized in order to obtain novel materials capable to generate reactive oxygen species (ROS). The synthesis was performed by adsorbing the dye RP on boehmite (B) and then alginate (ALG) was added forming a homogeneous suspension. This suspension was dripped on a solution of calcium ions resulting in the formation of bead-shaped yellow hydrogels. Beads with different RP content were synthesized. Confocal laser scanning microscope images indicate that the RP is homogeneously distributed in the ALG polymeric matrix. This microscopy, UV–Vis and fluorescence spectroscopies show that dye photophysical properties are not affected. Uptake oxygen experiments show that these beads have the ability to generate ROS, mainly singlet oxygen O₂(¹Δ_g). On top of that mentioned above, these materials are economical, environmentally friendly because are synthesized from non-toxic components and their synthesis does not generate waste and only use water as solvent. On the other hand, these beads are easy to handle and their ability to generate ROS making them promising for water remediation.

在这项工作中，基于藻酸盐，勃姆石和核黄素5'-磷酸染料（ALG-B-RP）珠的杂化复合材料被合成，以获得能够产生活性氧（ROS）的新型材料。通过将染料RP吸附在勃姆石（B）上进行合成，然后添加藻酸盐（ALG），形成均匀的悬浮液。将该悬浮液滴在钙离子溶液上，导致形成珠状黄色水凝胶。合成了不同RP含量的珠。共聚焦激光扫描显微镜图像表明RP在ALG聚合物基质中均匀分布。该显微镜，UV-Vis和荧光光谱表明，染料的光物理性质不受影响。摄取氧气的实验表明，这些珠具有产生ROS的能力，主要是单线态氧O₂（¹ Δ_克）。最重要的是，这些材料是经济，环保的，因为它们是由无毒的成分合成的，它们的合成不会产生废物，仅使用水作为溶剂。另一方面，这些珠粒易于处理，并且具有产生ROS的能力，因此有望用于水修复。