Novel non-toxic Eu³⁺-induced polyelectrolyte nano-aggregates (EIPAs) are used as a light-emitting nanomaterial to sense bacteria on the surface of cotton fabric. EIPAs are formed through coordination interaction between Eu³⁺(tta)₃phen complexes with positive charges and polyanionic hyaluronic acid (HA) with negative charges, and EIPAs were chemically bonded onto cotton fabrics through pentaerythritol (PER) crosslinking. Based on this innovation, the obtained fluorescence cotton fabrics (FCF) have a wide excitation spectrum, intense emission spectrum, and long fluorescence lifetime, which makes the fabric fluorescence stable and bright. These EIPAs and their photophysical properties impart FCF with the ability to report both Staphylococcus aureus and Escherichia coli. Furthermore, FCF has antibacterial activity against Staphylococcus aureus. Therefore, this new FCF integrates the advantages of superior lanthanide fluorescence, non-cytotoxicity, antibacterial activity, wearable and smart sensing.

新型无毒的Eu ³⁺诱导的聚电解质纳米聚集体（EIPA）用作发光纳米材料，可检测棉织物表面上的细菌。EIPA是通过带正电的Eu ³⁺（tta）₃ phen配合物与带负电的聚阴离子透明质酸（HA）之间的配位相互作用而形成的，并且EIPA通过季戊四醇（PER）交联化学键合到棉织物上。基于该创新，所得的荧光棉织物（FCF）具有宽的激发光谱，强的发射光谱和长的荧光寿命，这使得织物的荧光稳定而明亮。这些EIPA及其光物理性质赋予FCF报告金黄色葡萄球菌的能力和大肠杆菌。此外，FCF对金黄色葡萄球菌具有抗菌活性。因此，这种新型FCF融合了镧系元素荧光出色，无细胞毒性，抗菌活性，可穿戴和智能感应等优点。