Synthesis of novel quantum dots from DNA under mild conditions and their use as a fluorescent probe for the detection of Fe3+ and in biological imaging

2015 ◽  
Vol 7 (15) ◽  
pp. 6274-6279 ◽  
Author(s):  
Guifang Cheng ◽  
Weibo Zhang ◽  
Ying Zhou ◽  
Qifeng Ge ◽  
Chaobiao Huang
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Fluorescent Probe ◽  
Biological Imaging ◽  
Water Soluble ◽  
Iron Ions ◽  
Simple Method ◽  
Mild Conditions

We have demonstrated a simple method for the synthesis of water-soluble and well-dispersed fluorescent DNA-dots under mild conditions, which could be used as an effective fluorescent probe for the detection of iron ions with relatively good selectivity and sensitivity in an aqueous solution as well as in biological imaging applications.

scholarly journals Blinking and nonradiant dark fraction of water-soluble quantum dots in aqueous solution

2005 ◽  
Vol 102 (40) ◽  
pp. 14284-14289 ◽  
Author(s):  
J. Yao ◽  
D. R. Larson ◽  
H. D. Vishwasrao ◽  
W. R. Zipfel ◽  
W. W. Webb
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Water Soluble

A water-soluble lysosome-targetable fluorescent probe for carboxylesterase detection and its application in biological imaging

2022 ◽  
pp. 110079
Author(s):  
Fang-Fang Guo ◽  
Wei-Na Wu ◽  
Xiao-Lei Zhao ◽  
Yuan Wang ◽  
Yun-Chang Fan ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Biological Imaging ◽  
Water Soluble

Optimized Synthesis of Water-Soluble and Small-Size CdSe Quantum Dots

2011 ◽  
Vol 266 ◽  
pp. 46-50
Author(s):  
Jiao Yun Xia ◽  
Jun Long Tang
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Water Soluble ◽  
Cdse Quantum Dots ◽  
Key Factors ◽  
Cdse Qds ◽  
High Quality ◽  
Synthesis Route ◽  
Initial Ph

An optimized synthesis route was applied for controlling the preparation of CdSe quantum dots (QDs) in an aqueous solution. Some key factors which influencing the properties of CdSe QDs, such as initial pH, ratio of precursor etc, were investigated. The as-prepared products have been characterized by TEM, XPS, XRD, UV-Vis and fluorescence (FL) spectra. The result showed that the high-quality CdSe QDs with 3 nm was obtained. The experiments also conformed that the CdSe QDs with better FL properties were obtained with properly initial pH, 5, suitably [Cd2+] / [SeSO3 2-], range from 1:0.25 to 1:0.75 and the ratio of [Cd2+] / [TGA] is 1:2~1:3.

A Water-Soluble Fluorescent Probe for SO2 Derivatives in Aqueous Solution and Serum Based on Phenanthroimidazole Dye

2016 ◽  
Vol 27 (3) ◽  
pp. 799-804 ◽  
Author(s):  
Yang Zhou ◽  
Ying Wang ◽  
Shuzhang Xiao ◽  
Xiafeng He ◽  
Nuonuo Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Probe ◽  
Water Soluble

Water-soluble MoS2 quantum dots are a viable fluorescent probe for hypochlorite

2018 ◽  
Vol 185 (4) ◽  
Author(s):  
Yi Wang ◽  
Pu Zhang ◽  
Qing Lu ◽  
Yue Wang ◽  
Wensheng Fu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescent Probe ◽  
Water Soluble

A New Method for the Synthesis of N, N-Diethyl-m-Methylbenzamide from m-Toluic Acid and Diethylamine Using 1,1'-Carbonyl-di-(1,2,4-triazole) (CDT) as Coupling Agent

2021 ◽  
Vol 18 ◽  
Author(s):  
Duc Thinh Pham ◽  
Van Thu Nguyen ◽  
Binh Duong Vu ◽  
Dinh Chau Phan
Keyword(s):  
Aqueous Solution ◽  
High Purity ◽  
Coupling Agent ◽  
Liquid Extraction ◽  
Water Soluble ◽  
New Method ◽  
Simple Method ◽  
Basic Principles ◽  
Liquid Liquid Extraction ◽  
By Products

: A new, simple method for the synthesis of N, N-dietyl-m-methylbenzamide (DEET) from m-toluic acid and diethylamine using 1,1'-carbonyl-di-(1,2,4-triazole) (CDT) as a coupling agent has been performed. The basic principles of activated carbonyls have been explored with the ability to prepare new amides easily. All reaction by-products are water-soluble as well as removed by filtration, the reaction could be purified easily in an aqueous solution by liquid-liquid extraction, and the product DEET was high purity. This experimental efficiency is about 94-95%, purity (HPLC): 97-98%.

Enzymatic determination of uric acid using water-soluble CuInS/ZnS quantum dots as a fluorescent probe

2018 ◽  
Vol 185 (11) ◽  
Author(s):  
Fangmei Zhang ◽  
Pinyi Ma ◽  
Xinyu Deng ◽  
Ying Sun ◽  
Xinghua Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Uric Acid ◽  
Fluorescent Probe ◽  
Water Soluble ◽  
Enzymatic Determination

Calixarene-coated water-soluble CdSe–ZnS semiconductor quantum dots that are highly fluorescent and stable in aqueous solution

2005 ◽  
pp. 2829 ◽  
Author(s):  
Takashi Jin ◽  
Fumihiko Fujii ◽  
Hiroshi Sakata ◽  
Mamoru Tamura ◽  
Masataka Kinjo
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Semiconductor Quantum Dots ◽  
Water Soluble
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