Giant Pyramidal Near-Infrared InP/ZnS Quantum Dots with Size Over 15 nm for Cell Imaging

Zhang, Wenda1,2; Duan, Xijian2; Tan, Yangzhi2; Hao, Junjie2; Zhu, Hongmei2; Wang, Qingqian2; Yang, Hongcheng2; Liu, Haochen2; Wang, Kai2; Wang, Zhiwen1; Wang, Ya-Long3; Song, Yujie1; Sun, Xiao Wei2

2024-05-01

10.1002/lpor.202400367

LASER & PHOTONICS REVIEWS   影响因子和分区

1863-8880

1863-8899

["In recent years, near-infrared quantum dots (NIR QDs) have emerged as a promising candidate for biological imaging owing to their strong fluorescence penetrating into biological tissues and high imaging signal-to-noise ratio. Among various materials, InP QDs are environmentally friendly and have a relatively narrow bandgap of 1.35 eV, which provides a possibility for their emission wavelength to extend to the near-infrared region. However, the strong reactivity of the precursor of phosphorus makes it challenging to synthesize NIR InP QDs, as it leads to rapid nucleation of the InP core. Herein, a method of epitaxial growth is reported to synthesize NIR InP QDs. Through high-temperature nucleation and low-temperature epitaxial growth, NIR InP QDs larger than 15 nm in size and with an emission wavelength of 807 nm are successfully synthesized. Furthermore, by removing InPOx defects on the surface of the core through HF etching, the quantum yield (QY) is increased from 6% to 12%. Ligand exchange successfully converted oil-soluble ligands into water-soluble ones, leading to excellent performance in cell imaging. The study provides a promising approach to the synthesis of desirable NIR InP QDs for use in biomedical imaging applications.","Through high-temperature nucleation and low-temperature epitaxial growth, NIR InP QDs with a size larger than 15 nm and an emission wavelength of 807 nm are successfully synthesized. Ligand exchange successfully converted oil-soluble ligands into water-soluble ones, leading to excellent performance in cell imaging. This work provides a promising approach to the synthesis of desirable NIR InP QDs for use in biomedical imaging applications. image"]

cell imaging epitaxial growth InP near-infrared quantum dots

SCI ; EI

英语

通讯

Hainan Provincial Natural Science Foundation of China[221QN0858] ; KYQD[23040] ; National Key Research and Development Program of China["2021YFB3602703","2022YFB3602903"] ; Guangdong University Key Laboratory for Advanced Quantum Dot Displays[2017KSYS007] ; Shenzhen Key Laboratory for Advanced Quantum Dot Displays[ZDSYS201707281632549] ; Shenzhen Science and Technology Innovation Program[JCYJ20220818100411025] ; Shenzhen Development and Reform Commission Project[XMHT20220114005] ; null[12204229] ; null[12364050] ; null[22002030] ; null[62205138] ; null[62204107]

Optics ; Physics

Optics ; Physics, Applied ; Physics, Condensed Matter

WOS:001234992900001

WILEY-V C H VERLAG GMBH

Web of Science

1.Hainan Univ, Sch Chem & Chem Engn, Hainan Prov Key Lab Fine Chem, Haikou 570228, Peoples R China
2.Southern Univ Sci & Technol, Inst Nanosci & Applicat, Dept Elect & Elect Engn, Shenzhen Key Lab Adv Quantum Dot Displays & Lighti, Shenzhen 518055, Peoples R China
3.Hainan Univ, Sch Biomed Engn, Key Lab Biomed Engn Hainan Prov, Haikou 570228, Peoples R China

Zhang, Wenda,Duan, Xijian,Tan, Yangzhi,et al. Giant Pyramidal Near-Infrared InP/ZnS Quantum Dots with Size Over 15 nm for Cell Imaging[J]. LASER & PHOTONICS REVIEWS,2024.

Zhang, Wenda.,Duan, Xijian.,Tan, Yangzhi.,Hao, Junjie.,Zhu, Hongmei.,...&Sun, Xiao Wei.(2024).Giant Pyramidal Near-Infrared InP/ZnS Quantum Dots with Size Over 15 nm for Cell Imaging.LASER & PHOTONICS REVIEWS.

Zhang, Wenda,et al."Giant Pyramidal Near-Infrared InP/ZnS Quantum Dots with Size Over 15 nm for Cell Imaging".LASER & PHOTONICS REVIEWS (2024).