Photothermal Carbon Dots Chelated Hydroxyapatite Filler: High Photothermal Conversion Efficiency and Enhancing Adhesion of Hydrogel

被引：5
|
作者：
Liu, Guanxiong [1 ]
Li, Baoqiang [1 ,4 ,5 ]
Li, Jie [1 ]
Dong, Jiaxin [1 ]
Baulin, Vladimir E. [2 ,3 ]
Feng, Yujie [1 ]
Jia, Dechang [1 ,4 ]
Petrov, Yuri V. [5 ]
Tsivadze, Aslan Yu [3 ]
Zhou, Yu [1 ,4 ]
机构：
[1] Harbin Inst Technol, Inst Adv Ceram, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China
[2] Russian Acad Sci, Inst Physiol Act Cpds, Chernogolovka 142432, Russia
[3] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
[4] Harbin Inst Technol, MIIT Key Lab Adv Struct Funct Integrat Mat & Green, Harbin 150001, Peoples R China
[5] St Petersburg State Univ, Lab Dynam & Extreme Characterist Promising Nanostr, St Petersburg 199034, Russia
来源：
ACS APPLIED MATERIALS & INTERFACES | 2023年 / 15卷 / 48期
基金：
俄罗斯科学基金会; 中国国家自然科学基金;
关键词：
carbon dots; fluorescent hydroxyapatite; photothermalconversion efficiency; chelating; adhesive hydrogel; CANCER-THERAPY; FLUORESCENT; IONS; NANOPARTICLES; NANOTUBES; PORPHYRIN; RESONANCE; CELLS;
D O I：
10.1021/acsami.3c11957
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The synthesis of photothermal carbon/hydroxyapatite composites poses challenges due to the binding modes and relatively low photothermal conversion efficiency. To address these challenges, the calcium ions chelated by photothermal carbon dots (PTC-CDs) served as the calcium source for the synthesis of photothermal carbon dots chelated hydroxyapatite (PTC-HA) filler via the coprecipitation method. The coordination constant K and chelation sites of PTC-HA were 7.20 x 10(2) and 1.61, respectively. Compared to PTC-CDs, the coordination constant K and chelation sites of PTC-HA decreased by 88 and 35% due to chelating to hydroxyapatite, respectively. PTC-HA possesses fluorescence and photothermal performance with a 62.4% photothermal conversion efficiency. The incorporation of PTC-HA filler significantly enhances as high as 76% the adhesion performance of the adhesive hydrogel. PTC-HA with high photothermal conversion efficiency and enhancing adhesion performance holds promise for applications in high photothermal conversion efficiency, offering tissue adhesive properties and fluorescence capabilities to the hydrogel.
引用
收藏
页码：55335 / 55345
页数：11
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