Quaternary alloy quantum dots with widely tunable emission – a versatile system to fabricate dual-emission nanocomposites for bio-imaging

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 53760-53767 ◽  
Author(s):  
Jie Wang ◽  
Tao Deng ◽  
Dawei Deng ◽  
Rong Zhang ◽  
Yueqing Gu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Quaternary Alloy ◽  
Dual Emission ◽  
Biomedical Optical Imaging ◽  
Bio Imaging ◽  
Alloy Quantum Dots ◽  
Tunable Emission

Highly luminescent Zn-I-III-VI-based QDs with widely composition-tuned PL emissions have been synthesized for multiscale biomedical optical imaging.

Water-soluble Zn–Ag–In–Se quantum dots with bright and widely tunable emission for biomedical optical imaging

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88583-88589 ◽  
Author(s):  
Jie Wang ◽  
Rong Zhang ◽  
Fangjian Bao ◽  
Zhihao Han ◽  
Yueqing Gu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Water Soluble ◽  
Biomedical Optical Imaging ◽  
Tunable Emission

In this work, we synthesized water-soluble quaternary cadmium-free Zn–Ag–In–Se quantum dots with bright and widely tunable emission, and explored their potential in tumor-specific imaging in vitro and in vivo.

scholarly journals Quaternary Alloy Quantum Dots as Fluorescence Probes for Total Acidity Detection of Paper-Based Relics

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1726
Author(s):  
Zhuorui Wang ◽  
Cong Cheng ◽  
Yongjuan Cheng ◽  
Lizhen Zheng ◽  
Daodao Hu
Keyword(s):  
Quantum Dots ◽  
Extraction Method ◽  
Quaternary Alloy ◽  
New Method ◽  
Fluorescence Probes ◽  
Total Acidity ◽  
Weak Acids ◽  
Paper Sample ◽  
Composition And Structure ◽  
Alloy Quantum Dots

Traditionally, the acidity of paper-based relics was determined by an extraction method and using a pH meter. This method could not obtain the total acidity of the paper-based relics because it only detected the concentration of free protons in the aqueous soaking solution. To overcome this defect, a new method for determining the total acidity of paper-based relics has been established by using quaternary alloy quantum dots. The quantum dots, CdZnSeS, modified by p-Aminothiophenol (pATP) were prepared, and their composition and structure were characterized. The fluorescence behavior of prepared quantum dots with acidity was investigated. The following results were obtained. The fluorescence of CdZnSeS-pATP quantum dots could decrease with increases in acidity because pATP dissociated from the surfaces of the quantum dots due to protons or undissociated weak acids. Based on this feature, a method for determining the acidity of paper-based relics was constructed, and this method was used to evaluate the acidity of actual paper-based relics. Obviously, for a given paper sample, since both free protons and bound protons can be determined by this method, the acidity measured by this method is more reasonable than that by pH meter.

Fluorescent quantum dots: Synthesis, biomedical optical imaging, and biosafety assessment

2014 ◽  
Vol 124 ◽  
pp. 132-139 ◽  
Author(s):  
Xiaoyuan Ji ◽  
Fei Peng ◽  
Yiling Zhong ◽  
Yuanyuan Su ◽  
Yao He
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Biomedical Optical Imaging ◽  
Biosafety Assessment

Organic-to-aqueous phase transfer of Zn–Cu–In–Se/ZnS quantum dots with multifunctional multidentate polymer ligands for biomedical optical imaging

2017 ◽  
Vol 41 (13) ◽  
pp. 5387-5394 ◽  
Author(s):  
Rong Zhang ◽  
Tao Deng ◽  
Jie Wang ◽  
Gang Wu ◽  
Sirui Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Aqueous Phase ◽  
Phase Transfer ◽  
Biomedical Optical Imaging ◽  
Polymer Ligands

ZnCuInSe/ZnS QDs with widely tunable PL emissions were synthesized and water-solubilized with cRGD modified multifunctional multidentate polymer (cRGD-PME) for bioimaging.

Surface Coating of Graphene Quantum Dots Using Mussel-Inspired Polydopamine for Biomedical Optical Imaging

2013 ◽  
Vol 5 (16) ◽  
pp. 8246-8253 ◽  
Author(s):  
Md Nurunnabi ◽  
Zehedina Khatun ◽  
Md Nafiujjaman ◽  
Dong-geun Lee ◽  
Yong-kyu Lee
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Surface Coating ◽  
Graphene Quantum Dots ◽  
Biomedical Optical Imaging

Quaternary Zn–Ag–In–Se Quantum Dots for Biomedical Optical Imaging of RGD-Modified Micelles

2013 ◽  
Vol 5 (21) ◽  
pp. 10858-10865 ◽  
Author(s):  
Dawei Deng ◽  
Lingzhi Qu ◽  
Jian Zhang ◽  
Yuxiang Ma ◽  
Yueqing Gu
Keyword(s):  
Quantum Dots ◽  
Optical Imaging ◽  
Biomedical Optical Imaging

scholarly journals Cu-Catalyzed Synthesis of CdZnSe–CdZnS Alloy Quantum Dots with Highly Tunable Emission

2019 ◽  
Vol 31 (7) ◽  
pp. 2635-2643 ◽  
Author(s):  
Yucheng Yuan ◽  
Hua Zhu ◽  
Xudong Wang ◽  
Dingzhou Cui ◽  
Zehua Gao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Alloy Quantum Dots ◽  
Tunable Emission

Green preparation of lattice phosphorus doped graphene quantum dots with tunable emission wavelength for bio-imaging

2019 ◽  
Vol 242 ◽  
pp. 156-159 ◽  
Author(s):  
Gang Wang ◽  
Anli Xu ◽  
Peng He ◽  
Qinglei Guo ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Emission Wavelength ◽  
Doped Graphene ◽  
Bio Imaging ◽  
Phosphorus Doped ◽  
Tunable Emission
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