High quantum yield nitrogen and boron co-doped carbon dots for sensing Ag⁺, biological imaging and fluorescent inks

Abstract

N, B-doped carbon dots with a quantum yield of 33.04% were developed as a sensor for Ag+.

Preparation of high quantum yield nitrogen and sulfur co-doped carbon dots for sensitive detection of Cu2+

“…Using fluorescein dissolved in 0.1M NaOH solution (QY = 95%) as a reference, the QY of the G-CDs was obtained. 18 The calculation equation is as follows Eq. ( 1):…”

The utilization of quantum dot labeling as a burgeoning technique in the field of biological imaging

“…Protective shell materials, such as zinc sulde (ZnS) or zinc selenide (ZnSe), are oen used to enhance the quantum yield and stability of the QDs, ensuring consistent performance across different biological environments. 30 By carefully selecting and engineering the core and shell materials, researchers can create QDs with specic emission properties tailored to a wide range of imaging applications. This tunable emission capability, combined with their inherent brightness and stability, makes QDs an invaluable tool for advanced biological imaging and multiplexed diagnostics.…”

Carbon Dots-Based Fluorescence Assay for the Facile and Reliable Detection of Ag+ in Natural Water and Serum Samples

“…However, these assays also faced several challenges. For example, although most studies reported good to excellent LODs, their linear ranges were generally narrow, greatly limiting their practical applications [ 10 , 12 , 13 , 14 , 15 ]. Some studies reported relatively good LODs and linear intervals; however, their practicality for natural water sensing was not demonstrated [ 11 , 16 , 17 , 18 ].…”

“…Some studies reported relatively good LODs and linear intervals; however, their practicality for natural water sensing was not demonstrated [ 11 , 16 , 17 , 18 ]. Furthermore, far fewer assays have demonstrated the detection of Ag + in biological samples (i.e., serums) [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Lastly, the sensing mechanisms of most reported studies have not been fully discussed [ 12 , 14 , 16 , 21 , 22 ].…”