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Algae Extraction Controllable Delamination of Vanadium Carbide Nanosheets with Enhanced Near-Infrared Photothermal Performance
Authors:Shah Zada  Dr Wenhao Dai  Zhang Kai  Dr Huiting Lu  Xiangdan Meng  Yiyi Zhang  Yaru Cheng  Fang Yan  Prof Pengcheng Fu  Prof Xueji Zhang  Prof Haifeng Dong
Institution:1. Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Centre for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083 P. R. China

These authors contributed equally to this work.;2. Beijing Key Laboratory for Bioengineering and Sensing Technology, Research Centre for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083 P. R. China;3. School of Chemistry and Biological Engineering, University of Science & Technology Beijing, 30 Xueyuan Road, Beijing, 100083 P. R. China;4. State Key Laboratory of Marine Resource Utilization in South China Sea Hainan University, 58 Renmin Avenue, Meilan District Haikou, Hainan Province, 570228 P. R. China

Abstract:The two-dimensional (2D) vanadium carbide (V2C) MXene has shown great potential as a photothermal agent (PTA) for photothermal therapy (PTT). However, the use of V2C in PTT is limited by the harsh synthesis condition and low photothermal conversion efficiency (PTCE). Herein, we report a completely different green delamination method using algae extraction to intercalate and delaminate V2AlC to produce mass V2C nanosheets (NSs) with a high yield (90 %). The resulting V2C NSs demonstrated good structural integrity and remarkably high absorption in near infrared (NIR) region with a PTCE as high as 48 %. Systemic in vitro and in vivo studies demonstrate that the V2C NSs can serve as efficient PTA for photoacoustic (PA) and magnetic resonance imaging (MRI)-guided PTT of cancer. This work provides a cost-effective, environment-friendly, and high-yielding disassembly approach of MAX, opening a new avenue to develop MXenes with desirable properties for a myriad of applications.
Keywords:Algen-Extraktion  Krebs  Exfoliation  MXene  Photothermische Therapie
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