scholarly journals In vivo characterization of hair and skin derived carbon quantum dots with high quantum yield as long-term bioprobes in zebrafish

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Jing-Hui Zhang ◽  
Aping Niu ◽  
Jing Li ◽  
Jian-Wei Fu ◽  
Qun Xu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Carbon Quantum Dots ◽  
High Quantum Yield ◽  
High Quantum ◽  
In Vivo Characterization

scholarly journals Synthesis of N-Doped Micropore Carbon Quantum Dots with High Quantum Yield and Dual-Wavelength Photoluminescence Emission from Biomass for Cellular Imaging

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 495 ◽  
Author(s):  
Xin Ren ◽  
Fang Zhang ◽  
Bingpeng Guo ◽  
Na Gao ◽  
Xiaoling Zhang
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Cost Effective ◽  
Carbon Quantum Dots ◽  
Dual Wavelength ◽  
High Quantum Yield ◽  
High Quantum ◽  
Laser Ablation Method ◽  
Cost Effective Method ◽  
Pl Emission

Pursuit of a simple, fast, and cost-effective method to prepare highly and dual-wavelength fluorescent carbon quantum dots (CQDs) is a persistent objective in recent years. Here, we fabricated N-doped micropore carbon quantum dots (NM-CQDs) with a high quantum yield and dual-wavelength photoluminescence (PL) emission from sustainable biomass using a pulsed laser ablation method. Interestingly, two coexisting indigo–blue photoluminescence (PL) emissions were clearly observed, elucidating that the excited electrons transited from the intrinsic π* orbital to the surface state (SS) formed from the saturation passivation. The quantum yield (QY) and fluorescence lifetime (FL) of the obtained NM-CQDs were as high as 32.4% and 6.56 ns. Further investigations indicated that the emission behaviors of NM-CQDs were still stable and independent in various conditions such as various excitation wavelengths, salt ionic concentrations, pH values, irradiation times, and temperatures. The obtained NM-CQDs are very suitable for cellular staining images due to strong and stable PL emission and show good internalization in different cells. Therefore, we propose a new and cost-effective preparation strategy for highly fluorescent NM-CQDs with great potential in biomedical imaging and engineering.

Plasmon–exciton systems with high quantum yield using deterministic aluminium nanostructures with rotational symmetries

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 20315-20323 ◽  
Author(s):  
Landobasa Y. M. Tobing ◽  
Muhammad Danang Birowosuto ◽  
Kah Ee Fong ◽  
Yuan Gao ◽  
Jinchao Tong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
High Quantum Yield ◽  
Purcell Factor ◽  
High Quantum ◽  
Single Antenna

We study the emission of quantum dots coupled with aluminium nanoantenna of C6 symmetry, and observe Purcell factor in the range of 68.01 < Fp < 118.25 corresponding to a modified quantum yield of >89% in the single antenna.

S doped silicon quantum dots with high quantum yield as a fluorescent sensor for determination of Fe3+ in water

2020 ◽  
Vol 110 ◽  
pp. 110461
Author(s):  
Xiaoshuo Zhang ◽  
Chunhua Li ◽  
Sheliang Zhao ◽  
Huiyun Pang ◽  
Yong Han ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Fluorescent Sensor ◽  
High Quantum Yield ◽  
Silicon Quantum Dots ◽  
High Quantum ◽  
Doped Silicon

High-Quantum-Yield Mitochondria-Targeting Near-Infrared Fluorescent Probe for Imaging Native Hypobromous Acid in Living Cells and in Vivo

2017 ◽  
Vol 89 (3) ◽  
pp. 1787-1792 ◽  
Author(s):  
Xiaojun Liu ◽  
Aishan Zheng ◽  
Dongrui Luan ◽  
Xiaoting Wang ◽  
Fanpeng Kong ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Fluorescent Probe ◽  
Near Infrared ◽  
Living Cells ◽  
High Quantum Yield ◽  
High Quantum ◽  
Hypobromous Acid ◽  
Mitochondria Targeting
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