Abstract Alginate, a natural polysaccharide, can form gels with divalent cations under mild conditions. In this paper, homogeneous, injectable chemiluminescence hydrogels were prepared in situ for the first time. The raw materials contained alginate, calcium ion source (CaCO3), d -glucono-δ-lactone (GDL), chemiluminescence reagent (isoluminol), and catalyst (Co2+). When H2O2 was added, the hydrogels would give blue light which was visible to naked eyes. And, the light emission could last for over 10 h due to the slow-diffusion-controlled chemical reaction. In addition, the as-prepared CL hydrogels had a good response capacity to H2O2.

中文翻译：

---

原位制备的长效化学发光水凝胶

摘要 海藻酸盐是一种天然多糖，能在温和条件下与二价阳离子形成凝胶。在本文中，首次原位制备了均质、可注射的化学发光水凝胶。原料包括海藻酸盐、钙离子源（CaCO3）、d-葡萄糖酸-δ-内酯（GDL）、化学发光试剂（异鲁米诺）和催化剂（Co2+）。当加入 H2O2 时，水凝胶会发出肉眼可见的蓝光。并且，由于缓慢扩散控制的化学反应，光发射可以持续超过 10 小时。此外，所制备的 CL 水凝胶对 H2O2 具有良好的响应能力。