Pandey Pankaj Kumar, Sathyavageeswaran Arvind, Holmlund Nickolas, Perry Sarah L
Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States.
ACS Macro Lett. 2025 Jan 21;14(1):43-50. doi: 10.1021/acsmacrolett.4c00745. Epub 2024 Dec 19.
This Letter presents complex coacervation between the biopolymer diethylaminoethyl dextran hydrochloride (DEAE-Dex) and carbon dots. The formation of these coacervates was dependent on both DEAE-Dex concentration and solution ionic strength. Fluorescence spectroscopy revealed that the blue fluorescence of the carbon dots was unaffected by coacervation. Additionally, microrheological studies were conducted to determine the viscosity of these coacervates. These complex coacervates, formed through the interaction of nanoparticles and polyelectrolytes, hold a promising role for future applications where the combination of optical properties from the carbon dots and encapsulation via coacervation can be leveraged.
这封信介绍了生物聚合物盐酸二乙氨基乙基葡聚糖（DEAE - Dex）与碳点之间的复合凝聚。这些凝聚层的形成取决于DEAE - Dex的浓度和溶液的离子强度。荧光光谱显示，碳点的蓝色荧光不受凝聚的影响。此外，还进行了微观流变学研究以确定这些凝聚层的粘度。这些通过纳米颗粒与聚电解质相互作用形成的复合凝聚层，在未来的应用中具有广阔前景，因为可以利用碳点的光学性质与通过凝聚进行封装相结合的优势。
