Review
Engineering, Environmental
Jixi Zhang, Jiahui Jin, Jianqin Wan, Shaohua Jiang, Yongzhong Wu, Wufeng Wang, Xiao Gong, Hangxiang Wang
Summary: Research on QDs/hydrogel composites is progressing rapidly with wide applications in health, energy, and environment. Synthetic strategies are classified based on preparative sequence, and the latest applications in sensing, particularly fluorescence sensing, are summarized.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Zhimin Weng, Zhenglian Li, Yixuan Zhang, Mingying Zhang, Zhongnan Huang, Wei Chen, Huaping Peng
Summary: This study proposes a novel AuNC-based ECL sensing platform and explores the regulation mechanism of electron transfer on ECL. By investigating the ECL quenching effect of OM-AuNCs under the influence of Cu2+, it is found that the ECL intensity of OM-AuNCs is affected by the electron transfer process, enabling sensitive detection of Cu2+ in a low concentration range without the need for amplification techniques. This study enriches the application of ET-mediated ECL and promotes a more rational design of ECL sensors.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Chuqiao Wu, Wenjie Sun, Qianming Wang
Summary: In this study, various sulfur-derived nanomaterials were prepared using different sulfur sources, with poly(ethylene glycol) playing an important role in the assembly process and the definition of sulfur dots being inaccurate. The photophysical properties of different sulfur-derived nanomaterials vary, with NSO-QDs demonstrating high selectivity and sensitivity in the detection of Ni2+.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhiyong Tang, Hongchao Yang, Ziqiang Sun, Yejun Zhang, Guangcun Chen, Qiangbin Wang
Summary: Cation exchange (CE) is a promising post-synthesis strategy for colloidal nanocrystals, and the choice of cation precursor significantly affects the CE process and the final nanocrystals. In this study, two Zn-B Lewis acid-base adduct complexes were used as Zn precursors for CE with Ag2S quantum dots. The results showed that the steric hindrance and complexing capabilities of the precursor greatly influenced the CE kinetics and led to the formation of Zn-doped Ag2S and Ag2S@ZnS core-shell quantum dots. Theoretical simulation provided insights into the formation mechanisms of these nanocrystals.
Article
Chemistry, Analytical
Pengde Jia, Caiping Ding, Zhiwei Sun, Liping Song, Dong Zhang, Zejun Yan, Zhenlin Zhang, Fengmei Su, Amany A. Mostafa, Youju Huang
Summary: By precisely regulating the distance between Au nanorods and Ag2S quantum dots with DNA of different chain lengths, the best MEF effect was obtained. Utilizing this, a biosensor for accurate detection of PCA3 was designed with good performance in terms of detection limit and sensitivity.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Jing Huang, Danyang Wang, Shuhua Li, Hong Fan, Louzhen Fan
Summary: Cancer remains a major global cause of morbidity and mortality, and early diagnosis is crucial for improving the survival of cancer patients. Establishing a universal strategy for cancer detection is challenging due to the vast differences in genotypes and phenotypes of cancers. However, using pH-responsive probes may potentially achieve universal cancer detection, particularly in acidic microenvironments caused by lactic acid accumulation in tumor cells.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Physical
Alexey M. Vervald, Kirill A. Laptinskiy, Galina N. Chugreeva, Sergey A. Burikov, Tatiana A. Dolenko
Summary: This article discusses the mechanisms of photoluminescence quenching in aqueous solutions of carbon dots synthesized by hydrothermal methods. The study reveals that different metal ions contribute to the quenching of photoluminescence through various mechanisms, including inner filter effect, static quenching caused by (de)protonation of carbon dot surface groups with pH changes, and dynamic quenching. The research provides an algorithm for analyzing the photoluminescence quenching of carbon nanoparticles by any ions in complex media.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yunmo Sung, Wonseok Lee, Eunjae Lee, Young Ho Ko, Sungjee Kim
Summary: The surface atom stoichiometry of Ag2S NCs is controlled through ion-pair ligand-assisted surface reactions. Different combinations of cation and anion pairs are studied, leading to the synthesis of cation-rich-surfaced, anion-rich-surfaced, and perfectly stoichiometric Ag2S NCs. The ion-pair-assisted surface chemistry enables the enhancement of fluorescence intensity and epitaxial growth performance of Ag2S NCs.
CHEMISTRY OF MATERIALS
(2022)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Analytical
Zhongnan Huang, Sunxing Yu, Meili Jian, Zhimin Weng, Haohua Deng, Huaping Peng, Wei Chen
Summary: This study presents an electrochemiluminescence (ECL) platform based on gold nanoclusters for ultrasensitive detection of glutathione (GSH) and adenosine triphosphate (ATP). The platform exhibits high sensitivity, wide dynamic range, and strong anti-interference properties, showing great potential in the detection of GSH-related substances.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Dejia Hu, Shangzuo Jiang, Tianhao Xia, Danyang Xiao, Yan Li, Yanbing Hou, Jin Zhong Zhang, Ying-Chih Pu
Summary: Ti2C quantum dots with rich surface functional groups have been synthesized and used to detect tetracycline based on enhanced fluorescence. The interaction between the surface functional groups of Ti2C quantum dots and tetracycline enhanced the fluorescence signal, allowing for quick and accurate detection. This new and simple strategy for tetracycline detection is important for ensuring food safety and human health.
Review
Chemistry, Inorganic & Nuclear
Rafael C. Castro, David S. M. Ribeiro, Joao L. M. Santos
Summary: Research has focused on developing fast, efficient, cost-effective, and easy to handle analytical methodologies for on-site monitoring of various analytes. This work examines fluorescence-based visual detection methods using quantum dots, discussing strategies for implementing sensing platforms and enhancing sensitivity and selectivity.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Spectroscopy
Furkan Burak Sen, Nilay Begic, Mustafa Bener, Resat Apak
Summary: In this study, a fluorescent polyethylenimine capped carbon quantum dots (PEI-C-dots) probe was synthesized and used to detect TNT residues. The synthesized PEI-C-dots exhibited high fluorescence quantum yield and low detection limit for TNT. The detection of TNT was not interfered by similar structured explosives, common soil ions, and camouflage agents.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Multidisciplinary
Mayssa Ibrahim, P. Camarero, Liyan Ming, Mohamed Haouari, Noura Amamou, P. Haro-Gonzalez, Fredj Hassen
Summary: This work describes a simple wet chemical route to synthesize silver sulfide nanoparticles encapsulated with thioglycolic acid. The nanoparticles exhibit a nearly spherical shape with two average size populations, and are enrobed by TGA molecules. They have been found to be highly luminescent, photostable and photobleaching resistant, emitting in the NIR region at 915 nm. The nanoparticles are biocompatible and can be used as fluorescent probes for living cell imaging and intracellular temperature mapping.
Article
Materials Science, Multidisciplinary
Reena K. Sajwan, Purnima Sharma, G. B. V. S. Lakshmi, Pratima R. Solanki
Summary: A fluorescence Turn-On based strategy using MPA-CdSe QDs was utilized for urea determination, with a detection range from 1 to 120 mM and a lower detection limit of 1 mM. The pH sensitivity of MPA-CdSe QDs was key in detecting urea through the enzymatic reaction with urease and the release of ammonia.
Article
Chemistry, Multidisciplinary
Dong-Hui Zhao, Jie Yang, Rui-Xue Xia, Ming-Hao Yao, Rui-Mei Jin, Yuan-Di Zhao, Bo Liu
CHEMICAL COMMUNICATIONS
(2018)
Article
Engineering, Environmental
Chao-Qing Li, Dong-Hui Zhao, Xiao-Lin Hou, Bin Zhang, Lai-Bo Song, Rui-Mei Jin, Yuan-Di Zhao, Bo Liu
Summary: The study successfully synthesized genetically engineered polypeptide-capped tellurium nanorods, demonstrating great potential for tumor therapy. The P-TeNRs showed excellent photothermal and reactive oxygen species generation capabilities under near-infrared laser and ultrasound irradiation, enabling combined photothermal and sonodynamic therapy for tumors.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Dong-Hui Zhao, Chao-Qing Li, Xiao-Lin Hou, Xiao-Ting Xie, Bin Zhang, Gui-Ying Wu, Fang Jin, Yuan-Di Zhao, Bo Liu
Summary: Chemodynamic therapy (CDT) is being explored for tumor-specific therapy by converting endogenous H2O2 to lethal ·OH with the assistance of tumor microenvironment-activated fluorescence imaging. A novel approach using copper ion-doped ZIF-8 loaded with gold nanozymes and doxorubicin hydrochloride (DOX) for synergistic treatment of tumors through chemotherapy and CDT was reported. The cascade reactions triggered by the depletion of GSH and the conversion of H2O2 to ·OH result in amplified therapeutic effects.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Dong-Hui Zhao, Chao-Qing Li, Xiao-Lin Hou, Gui-Ying Wu, Xiao-Ting Xie, Dan Zhu, Fang Jin, Yuan-Di Zhao, Bo Liu
Summary: This study demonstrates the assembly of CCD nanoparticles to respond to the tumor microenvironment, achieving enhanced chemodynamic therapy effects. The CCD NPs show excellent biocompatibility and synergistic anti-tumor ability, effectively inhibiting tumor growth.
Article
Chemistry, Inorganic & Nuclear
Dong-Hui Zhao, Jie Yang, Ming-Hao Yao, Chao-Qing Li, Bin Zhang, Dan Zhu, Yuan-Di Zhao, Bo Liu
DALTON TRANSACTIONS
(2020)
Article
Materials Science, Biomaterials
Dong-Hui Zhao, Xiao-Quan Yang, Xiao-Lin Hou, Yang Xuan, Xian-Lin Song, Yuan-Di Zhao, Wei Chen, Qiong Wang, Bo Liu
JOURNAL OF MATERIALS CHEMISTRY B
(2019)
