Formation of ZnSe/Bi2Se3 QDs by surface cation exchange and high photothermal conversion

Jia, Guozhi; Wang, Peng; Wu, Zengna; Li, Qiang; Zhang, Yanbang; Yao, Jianghong; Chang, Kai

doi:10.1063/1.4929802

Cited by 11 publications

(8 citation statements)

References 29 publications

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“…Copyright 2014, Springer. J) ZnSe/Bi 2 Se 3 QDs by ultrasonic assisted cation exchange: Schematic outline of synthesis procedure, Reproduced with permission . Copyright 2015, American Institute of Physics.…”

Section: Fabrication Of 2d Qdsmentioning

confidence: 99%

“…The energy diagram of CdSe/Bi 2 Se 3 core/shell QDs given in Figure H signifies that these QDs show a typical type‐II band alignment where holes are confined to the core region and electrons are localized in the shell region (refer Figure I). Jia et al reported the synthesis of ZnSe/Bi 2 Se 3 core/shell QDs via ultrasonic wave‐assisted cation exchange reaction where the surface Zn ion was replaced by Bi ion in ZnSe QDs to yield ZnSe/Bi 2 Se 3 QDs. The formation mechanism is detailed in Figure J and the cation exchange process might be influenced by factors such as thermodynamic and kinetic process, mobility of cations, lattice energy and so on.…”

Section: Fabrication Of 2d Qdsmentioning

confidence: 99%

See 1 more Smart Citation

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

Dhanabalan

Ponraj

et al. 2017

Advanced Optical Materials

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A major focus on graphene‐based two‐dimensional (2D) materials is highlighted in recent days owing to their fascinating properties with widespread applications in electronic devices, catalysis, photonics and medicine. Here, we critically evaluate 2D materials based quantum dots (QDs) to understand the significant ways of fabrication adopted to meet their challenging demands in par with other 2D nanostructures to be in parallel with the current photonic technology with emphasis on future research scope to make use of these materials. We also discuss the different applications of 2D QDs emphasizing the realization of fluorescent probes which are in great demand to well‐establish these materials in the healthcare sector for the betterment of mankind. This study is a key priority and will bring a great impact in the advancement of simple yet challenging 2D QDs by bringing them towards the next level of applications point‐of‐view similar to that of graphene.

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Section: Fabrication Of 2d Qdsmentioning

confidence: 99%

Section: Fabrication Of 2d Qdsmentioning

confidence: 99%

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

Dhanabalan

Ponraj

et al. 2017

Advanced Optical Materials

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“…Because it possesses both good bioactivity and biocompatibility, Bi 2 Se 3 has been regarded as a very promising material for many clinical applications such as biomarker detection, diagnosis, cancer radiation therapy, and imaging . To date, remarkable efforts have been made to improve the photothermal conversion efficiency (PCE) of Bi 2 Se 3 , such as decreasing the thickness and core–shelling using CdSe and ZnSe . Because of the high X‐ray attenuation of the element Bi, Bi 2 Se 3 has been incorporated with other organic/inorganic materials to fabricate bifunctional image‐guided PTT nanoparticles .…”

Section: Introductionmentioning

confidence: 99%

Bifunctional Au@Bi₂Se₃ Core–Shell Nanoparticle for Synergetic Therapy by SERS‐Traceable AntagomiR Delivery and Photothermal Treatment

Mohammadniaei

Lee

Bharate

et al. 2018

Small

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For the first time, topological insulator bismuth selenide nanoparticles (Bi Se NP) are core-shelled with gold (Au@Bi Se ) i) to represent considerably small-sized (11 nm) plasmonic nanoparticles, enabling accurate bioimaging in the near-infrared region; ii) to substantially improve Bi Se biocompatibility, iii) water dispersibility, and iv) surface functionalization capability through straightforward gold-thiol interaction. The Au@Bi Se is subsequently functionalized for v) effective targeting of SH-SY5Y cancer cells, vi) disrupting the endosome/lysosome membrane, vii) traceable delivery of antagomiR-152 and further synergetic oncomiR knockdown and photothermal therapy (PTT). Unprecedentedly, it is observed that the Au shell thickness has a significant impact on evoking the exotic plasmonic features of Bi Se . The Au@Bi Se possesses a high photothermal conversion efficiency (35.5%) and a remarkable surface plasmonic effect (both properties are approximately twofold higher than those of 50 nm Au nanoparticles). In contrast to the siRNA/miRNA delivery methods, the antagomiR delivery is based on strand displacement, in which the antagomiR-152 is displaced by oncomiR-152 followed by a surface-enhanced Raman spectroscopy signal drop. This enables both cancer cell diagnosis and in vitro real-time monitoring of the antagomiR release. This selective PTT nanoparticle can also efficiently target solid tumors and undergo in vivo PTT, indicating its potential clinical applications.

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“…[ 16–20 ] Furthermore, remarkable efforts have been made to improve the photothermal performance of Bi 2 Se 3 nanocrystals through combining them with plasmonic metal nanocrystals and semiconductor counterparts. [ 21–25 ] For instance, to make use of high stability, good biocompatibility, and surface functionalization of Au, the integration of Bi 2 Se 3 with plasmonic Au nanocrystals is demonstrated in PTT. [ 22 ] Plasmonic Au nanocrystals also exhibit excellent photothermal effect due to their high‐efficient light‐harvesting capability and nonradiative energy relaxation, which means Bi 2 Se 3 ‐Au is a promising hybrid for PTT.…”

Section: Introductionmentioning

confidence: 99%

Controlled Growth of Hierarchical Bi₂Se₃/CdSe‐Au Nanorods with Optimized Photothermal Conversion and Demonstrations in Photothermal Therapy

Liu

Chen

Wang

et al. 2021

Adv Funct Materials

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Integrating multiple mechanisms to maximize photothermal conversion efficiency is a significant strategy but remains challenging to construct therapeutic agents toward photothermal tumor treatment. Here, an approach to synthesize asymmetric Bi2Se3/CdSe‐Au hierarchical nanorods with excellent photothermal conversion is reported. Ag wetting‐layer is firstly grown to help overcome the interfacial lattice mismatch and promote the site‐selective growth of AgCdSe onto one end or side surface of Au nanorods. Subsequently, extraction of Ag+ ions out of lattice is observed during cation exchange reaction and epitaxial growth of Bi2Se3 shell. Bi2Se3/CdSe heterojunction with type‐II band alignment is formed and located at the plasmonic hotspots of Au nanorods, which experiences enhanced light absorption and accelerates the charge separation of photo‐excited carriers. Under excitation of near‐infrared 808 nm laser, the matchstick‐like Bi2Se3/CdSe‐Au nanorods show an excellent photothermal conversion, with 4.3 times temperature increment (ΔT) than that of bare Au nanorods. Moreover, in vitro and in vivo experiments verify them as excellent photothermal therapeutic agents.

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Formation of ZnSe/Bi2Se3 QDs by surface cation exchange and high photothermal conversion

Cited by 11 publications

References 29 publications

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

Bifunctional Au@Bi₂Se₃ Core–Shell Nanoparticle for Synergetic Therapy by SERS‐Traceable AntagomiR Delivery and Photothermal Treatment

Controlled Growth of Hierarchical Bi₂Se₃/CdSe‐Au Nanorods with Optimized Photothermal Conversion and Demonstrations in Photothermal Therapy

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Formation of ZnSe/Bi2Se3 QDs by surface cation exchange and high photothermal conversion

Cited by 11 publications

References 29 publications

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

2D–Materials‐Based Quantum Dots: Gateway Towards Next‐Generation Optical Devices

Bifunctional Au@Bi2Se3 Core–Shell Nanoparticle for Synergetic Therapy by SERS‐Traceable AntagomiR Delivery and Photothermal Treatment

Controlled Growth of Hierarchical Bi2Se3/CdSe‐Au Nanorods with Optimized Photothermal Conversion and Demonstrations in Photothermal Therapy

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Product

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About

Bifunctional Au@Bi₂Se₃ Core–Shell Nanoparticle for Synergetic Therapy by SERS‐Traceable AntagomiR Delivery and Photothermal Treatment

Controlled Growth of Hierarchical Bi₂Se₃/CdSe‐Au Nanorods with Optimized Photothermal Conversion and Demonstrations in Photothermal Therapy