Review
Optics
Jian Zhang, Shaohui Zhang, Yule Zhang, Omar A. Al-Hartomy, Swelm Wageh, Abdullah G. Al-Sehemi, Yabin Hao, Lingfeng Gao, Hao Wang, Han Zhang
Summary: This review provides a comprehensive evaluation of the optoelectronic application levels of semiconductor quantum dots (SQDs), perovskite quantum dots (PQDs), and carbon quantum dots (CDs), as well as a detailed summary of photocatalysis. The article discusses the compositions and optoelectronic properties of the three types of quantum dots, compares their strengths and weaknesses, demonstrates their flourishing development in various optoelectronic applications, and identifies bottlenecks and opportunities for future breakthroughs.
LASER & PHOTONICS REVIEWS
(2023)
Review
Chemistry, Analytical
B. N. Kumara, Palraj Kalimuthu, K. . S. Prasad
Summary: Photoluminescent-carbon nanoparticles (PL-CNPs) have attracted significant interest due to their distinct characteristics, including photoluminescence, high surface-to-volume ratio, low cost, ease of synthesis, high quantum yield, and biocompatibility. They have been extensively studied for their utility in various applications such as sensors, photocatalysts, bio-imaging probes, and optoelectronics. However, some PL-CNPs face limitations in their properties and selectivity, hindering their widespread application. To overcome these challenges, researchers have focused on developing new PL-CNPs with better properties and selectivity using different composite combinations. This review discusses the recent advancements in synthetic strategies, doping effects, photostability, biocompatibility, and applications of PL-CNPs in sensing, bioimaging, and drug delivery, as well as their limitations, future directions, and potential applications.
ANALYTICA CHIMICA ACTA
(2023)
Article
Environmental Sciences
Natarajan Architha, Murugesan Ragupathi, Chellappan Shobana, Thangasamy Selvankumar, Ponnuchamy Kumar, Yun Sung Lee, Ramakrishnan Kalai Selvan
Summary: Biomass-derived carbon quantum dots synthesized from Mexican Mint leaves via microwave-assisted reflux method exhibited strong fluorescence properties and high sensitivity to Fe3+ ions, allowing for the construction of logic gates and effective application in cell imaging.
ENVIRONMENTAL RESEARCH
(2021)
Review
Chemistry, Inorganic & Nuclear
Huaxin Liu, Xue Zhong, Qing Pan, Yi Zhang, Wentao Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: Among the carbon nanomaterials family, fluorescent carbon dots have emerged as significant members with outstanding characteristics and extensive applications. Despite the development of many synthesis strategies, achieving controllable synthesis remains challenging.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Multidisciplinary
Mychele Jorns, Dimitri Pappas
Summary: Carbon dots are a type of fluorescent nanoparticle with biocompatibility and diversity, useful for biomedical applications such as fluorescence imaging and sensors, as well as for drug delivery and photodynamic therapy in other fields.
Review
Chemistry, Multidisciplinary
Giorgio Speranza
Summary: Recent advances in nanomaterial design and synthesis have led to the development of robust sensing systems with superior analytical performance. Carbon-based sensors, known for their biocompatibility, sensitivity, selectivity, and low limits of detection, have been widely used for the detection of organic and inorganic molecules. Carbon nanomaterials, such as fullerenes, carbon onions, carbon quantum dots, nanodiamonds, carbon nanotubes, and graphene, have unique properties that make them ideal for sensing applications, showing promise for future developments.
Review
Environmental Sciences
Chanchal Das, Mika Sillanpaa, Shabi Abbas Zaidi, Moonis Ali Khan, Goutam Biswas
Summary: Urbanization and population growth have led to a significant increase in solid waste generation, projected to reach 3.40 billion tons by 2050. Carbon-based quantum dots (Cb-QDs) derived from solid wastes have attracted research interest due to their wide range of applications. This review focuses on the conversion of solid wastes into useful materials for pollution reduction, specifically investigating sustainable synthesis routes of carbon quantum dots (CQDs), graphene quantum dots (GQDs), and graphene oxide quantum dots (GOQDs). The applications of these quantum dots in various fields are also discussed, along with the challenges in implementing existing synthesis methods and future research directions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Analytical
Likang Zhang, Xue Yang, Zhifu Yin, Linlin Sun
Summary: This review provides an overview of the characteristics, synthesis methods, major applications, and future prospects of carbon quantum dots (CQDs).
Article
Chemistry, Inorganic & Nuclear
Shuang Ding, Ying Gao, Binshan Ni, Xiaodong Yang
Summary: This study reports the environmentally friendly synthesis of Carbon Quantum Dots (CQDs) using various typical crop biomasses as carbon sources. The resulting CQDs exhibit strong fluorescence and good dispersion in water, making them suitable as fluorescent probes for the selective and sensitive detection of Fe3+ ions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Spectroscopy
Robina Kouser, Huzaifa Yasir Khan, Farukh Arjmand, Sartaj Tabassum
Summary: In this study, an oxo-bridged Sn (IV) Cluster, (TOC), was synthesized and fully characterized. The TOC exhibited a unique turn-off fluorescence response for the selective detection of dopamine (DA). Experimental results and Density Functional Theory (DFT) studies supported the sensing mechanism of TOC for dopamine.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Biochemistry & Molecular Biology
Ankita Deb, Devasish Chowdhury
Summary: Carbon dots (CDs), a new class of nanomaterials, have unique characteristics such as good aqueous solubility, colloidal stability, resistance to photobleaching, and fluorescence tunability, making them useful in various applications. This review focuses on the use of biogenic materials for the synthesis of biogenic carbon dots (BCDs) in the past five years, discussing different synthetic protocols and significant findings. The review also examines the applications of BCDs in chemo and biosensors, drug delivery, bioimaging, catalysis, and energy applications. Biogenic carbon dots are future sustainable materials replacing traditional carbon quantum dots from other sources.
CURRENT MEDICINAL CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Zhilin Zhou, Zhiwen Li, Jianghua Wang, Zhichuan Wu, Yingqiang Fu
Summary: In this study, blue emitting nitrogen-doped carbon quantum dots (NCQDs) were successfully synthesized using a hydrothermal method, and a fluorescence assay for azithromycin detection was developed based on the quenching effect of azithromycin and Cu2+ on the fluorescence of N-CQDs.
Review
Chemistry, Medicinal
Fernando G. Torres, Karen N. Gonzales, Omar P. Troncoso, Victoria S. Canedo
Summary: The marine environment is a rich source of polysaccharides that can be used to synthesize carbon quantum dots (CQDs). CQDs obtained from marine polysaccharides have unique properties due to the presence of multiple heteroatoms. This review discusses the methods used to synthesize CQDs from different marine polysaccharide sources and highlights their potential applications in various fields.
Article
Spectroscopy
Heba M. Ahmed, Mohsen Ghali, Waheed Zahra, Mohamad M. Ayad
Summary: In this study, a CQDs/PANI nanocomposite was successfully prepared and used for the detection of picric acid with good enhancement and sensitivity. The detection mechanism of picric acid was studied, showing electrostatic interaction between picric acid and the nanocomposite through fluorescence resonance energy transfer.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Zhihong Yan, Xiaoling Yang, Yingchen Hua, Ziquan Li, Yi Liu, Yuehua Lin
Summary: The study introduces an ultra-sensitive electrochemical impedance sensor for detecting sialic acid in human serum, utilizing a composite material of carbon quantum dots and chitosan with 3-aminophenylboronic acid as a specific recognition molecule. The modified electrode exhibited high sensitivity, good repeatability, and strong selectivity, providing a practical platform for rapid, simple, selective, and reliable detection of sialic acid.
MICROCHEMICAL JOURNAL
(2021)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
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
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)