Mercaptopropionic acid capped cadmium selenide quantum dots based urea Biosensor

被引：4

作者：

Sajwan, Reena K. ^{[1
]}

Sharma, Purnima ^{[1
]}

Lakshmi, G. B. V. S. ^{[1
]}

Solanki, Pratima R. ^{[1
]}

机构：

[1] Jawaharlal Nehru Univ, Special Ctr Nanosci, New Delhi 110067, India

来源：

MATERIALS LETTERS | 2021年 / 305卷

关键词：

Quantum dots; Fluorescence; Urea; Urease; pH value; GLUCOSE;

D O I：

10.1016/j.matlet.2021.130794

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Here a simple fluorescence "Turn-On" based strategy is used for the determination of urea using water soluble mercaptopropionic acid capped cadmium selenide quantum dots (MPA-CdSe QDs). These MPA-CdSe QDs were pH sensitive and this property is used for urea detection after the immobilization of urease. The principle of detection is to measure and correlate the enhancement of fluorescence intensity of MPA-CdSe QDs caused by the enzymatic reaction between urease with urea and release of ammonia. Ammonia release leads to raise in the pH value which turns on the fluorescence intensity of MPA-CdSe QDs in the presence of increasing concentration of urea varying from 1 to 120 mM with a lower detection limit of 1 mM.

引用

页数：4

共 50 条

[21] The Impact of Cadmium Selenide Zinc Sulfide Quantum Dots on the Proteomic Profile of Saccharomyces cerevisiae [J].

Le, Nhi ;

Chand, Abhishu ;

Okafor, Onyinye ;

Kim, Kyoungtae .

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2023, 24 (22)

[22] An ascorbic acid sensor based on cadmium sulphide quantum dots [J].

Ganiga, Manjunatha ;

Cyriac, Jobin .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2016, 408 (14) :3699-3706

[23] Fabrication of cadmium selenide quantum dots with laser ablation in superfluid helium [J].

Minowa, Yosuke ;

Suzuki, Tatsuro ;

Setoura, Kenji ;

Ito, Syoji ;

Miyasaka, Hiroshi ;

Ashida, Masaaki .

OPTICAL MANIPULATION CONFERENCE, 2018, 10712

[24] Hydrothermal synthesis of cadmium selenide quantum dots: effect of reducing agent [J].

Behzad Karimi ;

Mahdi Shafiee Afarani ;

Amir Masoud Arabi .

Applied Physics A, 2020, 126

[25] Hydrothermal synthesis of cadmium selenide quantum dots: effect of reducing agent [J].

Karimi, Behzad ;

Afarani, Mahdi Shafiee ;

Arabi, Amir Masoud .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2020, 126 (09)

[26] Aqueous synthesis of highly luminescent ternary alloyed Mn-doped ZnSeS quantum dots capped with 2-mercaptopropionic acid [J].

Mabrouk, Salima ;

Rinnert, Herve ;

Balan, Lavinia ;

Blanchard, Sebastien ;

Jasniewski, Jordane ;

Medjahdi, Ghouti ;

Ben Chaabane, Rafik ;

Schneider, Raphael .

JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 858

[27] Three-photon absorption for nanosecond excitation in cadmium selenide quantum dots [J].

Bentley, Sean J. ;

Anderson, Charles V. ;

Dooher, John R. .

OPTICAL ENGINEERING, 2007, 46 (12)

[28] A microfabricated segmented-flow reactor for the synthesis of cadmium selenide quantum dots [J].

Yen, B ;

Günther, A ;

Thalmann, M ;

Bawendi, MG ;

Jensen, KF .

Micro Total Analysis Systems 2004, Vol 2, 2005, (297) :127-129

[29] A potential masking approach in the detection of dopamine on 3-mercaptopropionic acid capped ZnSe quantum dots modified gold electrode in the presence of interferences [J].

Ndangili, Peter M. ;

Arotiba, Omotayo A. ;

Baker, Priscilla G. L. ;

Iwuoha, Emmanuel I. .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2010, 643 (1-2) :77-81

[30] Mercaptosuccinic acid capped cadmium telluride quantum dots as luminescent thermometer over a wide temperature range of-100 to 60°C [J].

Jiang, Xinbing ;

Yang, Huan ;

Fei, Yuxi ;

Wang, Jiuhong ;

Ding, Shujiang .

MATERIALS LETTERS, 2023, 352

← 1 2 3 4 5 →