scholarly journals On the Myth of “Red/Near-IR Carbon Quantum Dots” from Thermal Processing of Specific Colorless Organic Precursors

2021 ◽  
Author(s):  
Weixiong Liang ◽  
Ping Wang ◽  
Mohammed Meziani ◽  
Lin Ge ◽  
Liju Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Thermal Processing ◽  
Carbon Nanoparticles ◽  
Organic Molecules ◽  
Surface Passivation ◽  
Carbon Quantum Dots ◽  
Effective Surface ◽  
Chemical Functionalization ◽  
Near Ir ◽  
Organic Precursors

Carbon dots were originally found and reported as surface-passivated small carbon nanoparticles, where the effective surface passivation was the chemical functionalization of the carbon nanoparticles with organic molecules. Understandably, the...

scholarly journals Carbon Dots for Sensing and Killing Microorganisms

2019 ◽  
Vol 5 (2) ◽  
pp. 33 ◽  
Author(s):  
Fengming Lin ◽  
Yan-Wen Bao ◽  
Fu-Gen Wu
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Surface Passivation ◽  
Electronic Devices ◽  
Carbon Quantum Dots ◽  
Toxicity Profile ◽  
Carbon Dot ◽  
Underlying Mechanisms

Carbon dots (or carbon quantum dots) are small (less than 10 nm) and luminescent carbon nanoparticles with some form of surface passivation. As an emerging class of nanomaterials, carbon dots have found wide applications in medicine, bioimaging, sensing, electronic devices, and catalysis. In this review, we focus on the recent advancements of carbon dots for sensing and killing microorganisms, including bacteria, fungi, and viruses. Synthesis, functionalization, and a toxicity profile of these carbon dots are presented. We also discuss the underlying mechanisms of carbon dot-based sensing and killing of microorganisms.

A green synthetic route for the surface-passivation of carbon dots as an effective multifunctional fluorescent sensor for the recognition and detection of toxic metal ions from aqueous solution

2019 ◽  
Vol 11 (4) ◽  
pp. 490-506 ◽  
Author(s):  
K. Radhakrishnan ◽  
P. Panneerselvam ◽  
M. Marieeswaran
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Carbon Dots ◽  
Surface Passivation ◽  
Fluorescent Sensor ◽  
Toxic Metal ◽  
Carbon Quantum Dots ◽  
Synthetic Route ◽  
One Pot ◽  
Hydrothermal Methods

In this work, a green synthetic route was used to create a number of surface passivated fluorescent carbon quantum dots, which are explored as promising sensing probes, via facile one-pot hydrothermal methods.

scholarly journals Role of alkan-1-ol solvents in the synthesis of yellow luminescent carbon quantum dots (CQDs): van der Waals force-caused aggregation and agglomeration

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14396-14402 ◽  
Author(s):  
Kenta Hagiwara ◽  
Hiroshi Uchida ◽  
Yumiko Suzuki ◽  
Takashi Hayashita ◽  
Kanjiro Torigoe ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nanoparticles ◽  
Van Der Waals ◽  
Carbon Quantum Dots ◽  
Van Der Waals Force

Carbon quantum dots (CQDs; luminescent carbon nanoparticles, size < 10 nm) have attracted much attention with respect to their eco-friendliness and multi-functionality.

Highly Effective Surface Passivation of PbSe Quantum Dots through Reaction with Molecular Chlorine

2012 ◽  
Vol 134 (49) ◽  
pp. 20160-20168 ◽  
Author(s):  
Wan Ki Bae ◽  
Jin Joo ◽  
Lazaro A. Padilha ◽  
Jonghan Won ◽  
Doh C. Lee ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Passivation ◽  
Molecular Chlorine ◽  
Effective Surface ◽  
Highly Effective

Effective surface passivation of multi-shelled InP quantum dots through a simple complexing with titanium species

2018 ◽  
Vol 428 ◽  
pp. 906-911 ◽  
Author(s):  
Jung-Ho Jo ◽  
Min-Seok Kim ◽  
Chang-Yeol Han ◽  
Eun-Pyo Jang ◽  
Young Rag Do ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Passivation ◽  
Effective Surface ◽  
Inp Quantum Dots

Functionalization of Carbon Nanoparticles and Defunctionalization—Toward Structural and Mechanistic Elucidation of Carbon “Quantum” Dots

2016 ◽  
Vol 120 (44) ◽  
pp. 25604-25611 ◽  
Author(s):  
Fan Yang ◽  
Gregory E. LeCroy ◽  
Ping Wang ◽  
Weixiong Liang ◽  
Jijie Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nanoparticles ◽  
Carbon Quantum Dots

Boosting the performance of eco-friendly quantum dots-based photoelectrochemical cells via effective surface passivation

Nano Energy ◽  
2020 ◽  
Vol 76 ◽  
pp. 105062 ◽  
Author(s):  
Xin Tong ◽  
Ali Imran Channa ◽  
Yimin You ◽  
Peipei Wei ◽  
Xin Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Surface Passivation ◽  
Photoelectrochemical Cells ◽  
Effective Surface

Optical Characteristics of CdSe Quantum Dots Depending on Growth Conditions and Surface Passivation

2008 ◽  
Vol 8 (9) ◽  
pp. 4899-4902 ◽  
Author(s):  
Soon Il Jung ◽  
Hyun Young Yeo ◽  
Ilgu Yun ◽  
Sung M. Cho ◽  
Il Ki Han ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Growth Temperature ◽  
Matrix Method ◽  
Surface Passivation ◽  
Growth Conditions ◽  
Cdse Quantum Dots ◽  
Cdse Qds ◽  
Effective Surface ◽  
Organometallic Reagents

We investigated the effects of different growth conditions and surface passivation on the growth of CdSe quantum dots (QDs). The synthesis of CdSe QDs by pyrolysis of organometallic reagents was performed by using the hot-matrix method. In order to modify the size and quality of CdSe QDs, we controlled the growth temperature from 250 °C to 350 °C and the relative amount of trioctylphosphin (as the ligand of the Cd and Se precursors) to be injected into the coordinating solvent trioctylphosphineoxide. Moreover, an effective surface passivation of mono-disperse CdSe QDs was achieved by overcoating them with a larger band gap material, such as ZnS.

Reborn from the Ashes: Turning Organic Molecules to Antimicrobial Carbon Quantum Dots

2017 ◽  
Vol 3 (11) ◽  
pp. 777-779 ◽  
Author(s):  
Scott G. Harroun ◽  
Jui-Yang Lai ◽  
Chih-Ching Huang ◽  
Shou-Kuan Tsai ◽  
Han-Jia Lin
Keyword(s):  
Quantum Dots ◽  
Organic Molecules ◽  
Carbon Quantum Dots
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