A green carbon dots-based fluorescent sensor for selective and visual detection of nitrite triggered by the nitrite–thiol reaction

2020 ◽  
Vol 44 (20) ◽  
pp. 8503-8511 ◽  
Author(s):  
Xiaoyue Yue ◽  
Zijun Zhou ◽  
Yongmei Wu ◽  
Mingsha Jie ◽  
Yan Li ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Visual Detection ◽  
Fluorescent Sensor ◽  
Inner Filter Effect ◽  
Filter Effect ◽  
Thiol Reaction

Selective and visual detection of nitrite is realized through the inner-filter effect triggered by the nitrite–thiol reaction based on green carbon dots.

A reliable and facile fluorescent sensor from carbon dots for sensing 2,4,6-trinitrophenol based on inner filter effect

2020 ◽  
Vol 720 ◽  
pp. 137680 ◽  
Author(s):  
Xin Wang ◽  
Yongli Liu ◽  
Qingxiang Zhou ◽  
Xueying Sheng ◽  
Yi Sun ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fluorescent Sensor ◽  
Inner Filter Effect ◽  
Filter Effect

Polyethyleneimine-functionalized carbon dots as a fluorescent probe for doxorubicin hydrochloride by an inner filter effect

2021 ◽  
Vol 112 ◽  
pp. 110743
Author(s):  
Min Yang ◽  
Yujia Yan ◽  
Enzhou Liu ◽  
Xiaoyun Hu ◽  
Hong Hao ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Inner Filter Effect ◽  
Doxorubicin Hydrochloride ◽  
Filter Effect

A silicon nanoparticle based turn off fluorescent sensor for sudan I

2016 ◽  
Vol 8 (28) ◽  
pp. 5701-5706 ◽  
Author(s):  
Ammu Rosin Jose ◽  
Unni Sivasankaran ◽  
Shalini Menon ◽  
Krishnapillai Girish Kumar
Keyword(s):  
Fluorescent Sensor ◽  
Inner Filter Effect ◽  
Silicon Nanoparticle ◽  
Filter Effect ◽  
Sudan I

A turn off sensor for sudan I based on fluorescent Si NPs which works via an inner filter effect (IFE).

scholarly journals Spectrofluorimetric Determination of Hydrochlorothiazide by a Carbon Dots-Based Probe via Inner Filtering Effect and Resonance Rayleigh Scattering

2022 ◽  
Author(s):  
Ali Ghafarloo ◽  
Reza Sabzi ◽  
Naser Samadi ◽  
Hamed Hamishehkar
Keyword(s):  
Carbon Dots ◽  
Rayleigh Scattering ◽  
Limit Of Detection ◽  
Fluorescent Sensor ◽  
Emission Spectra ◽  
Cost Effective ◽  
Inner Filter Effect ◽  
Resonance Rayleigh Scattering ◽  
Excitation Spectra ◽  
One Pot

Synthesis of carbon dots (CDs) from natural resources not only enables green synthesis and production of environmentally friendly materials, but also provides a cost-effective probe as a fluorescence nanosensor. The proposed sensor introduces a unique one-pot hydrothermal CDs synthesis from alfalfa leaves, which is promising for sensing hydrochlorothiazide (HCTZ) via inner filter effect (IFE) and resonance Rayleigh scattering (RRS). The as-prepared CDs had wide emission spectra, excitation-dependent emission, high solubility, high stability, and visible fluorescence light with a quantum yield of up to 11%. The absorption of HCTZ overlapped with the excitation spectra of CDs. Therefore, CDs represented excellent quenching due to IFE when HCTZ was gradually added. Furthermore, this fluorescent sensor was successfully used to quantify HCTZ in the linear ranges (0.17-2.50 μg mL-1) with the limit of detection of 0.11 μg mL-1. The sensing system was simple as no surface functionalization was required for CDs, leading to less laborious steps and more cost-effective synthesis. The reaction time was short, i.e., less than 2 min, indicating a simple approach for rapid analysis of HCTZ. By optimizing conditions, successful measurements were carried out on pharmaceutical tablets.

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