Cutroneo Mariapompea, Malinsky Petr, Slepicka Petr, Torrisi Lorenzo
Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, MIFT, Università di Messina, V.le F. Stagno d'Alcontres 31, 98166 Messina, Italy.
Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic.
Polymers (Basel). 2024 Oct 3;16(19):2801. doi: 10.3390/polym16192801.
The synthesis of carbon dots (CDs) is gaining wide-ranging interest due to their broad applicability, owing to their small size and luminescence. CDs were prepared from charcoal via a one-step process using laser ablation in liquid without the use of reagents. The adopted method was based on the use of a commercially available continuous wave (CW) laser diode emitting a 450 nm wavelength and, for the liquid, a phosphate-buffered saline (PBS) solution, routinely used in the biological field. Photoluminescence analysis revealed fluorescence, at 480 nm, increasing with laser irradiation time. The atomic force microscopy (AFM) of the CDs revealed an average sphere shape with a size of about 10 nm. Biodegradable polycaprolactone (PCL), typically adopted in biomedicine applications, was used as a matrix to show the preserved luminescence, ideal for the non-invasive monitoring of implanted scaffolds in tissue engineering.
由于碳点（CDs）尺寸小且具有发光特性，因而具有广泛的适用性，其合成正引起广泛关注。通过在液体中使用激光烧蚀的一步法，不使用试剂，由木炭制备出了碳点。所采用的方法基于使用发射450 nm波长的市售连续波（CW）激光二极管，对于液体，则使用生物领域常用的磷酸盐缓冲盐水（PBS）溶液。光致发光分析显示，在480 nm处的荧光随激光照射时间增加。碳点的原子力显微镜（AFM）显示其平均呈球形，尺寸约为10 nm。生物医学应用中常用的可生物降解聚己内酯（PCL）被用作基质，以显示其保留的发光特性，这对于组织工程中植入支架的非侵入性监测而言是理想的。
