Article
Chemistry, Physical
Manoel L. Silva-Neto, Renato Barbosa-Silva, Georges Boudebs, Cid B. de Araujo
Summary: This study determined the first hyperpolarizability of graphene quantum dots (GQDs) suspended in water using the hyper-Rayleigh scattering (HRS) technique. The results suggest that these GQDs may have potential applications in biological microscopy imaging.
Article
Chemistry, Physical
Arun Ashokan, Paul Mulvaney
Summary: Solution-phase spectroelectrochemistry was used to study electron injection into colloidal CdSe quantum dots in THF. The results showed reversible optical changes on a time-scale of minutes, with the injection of electrons leading to quenching of photoluminescence. The number of electrons injected into the QDs depended on the electrode potential and QD size, with most injection occurring below the band edge.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Analytical
Jeeva Geogin, Madhuri Patel, Nishith Teraiya, Ashlesha Chauhan, Priti Trivedi, Binit Patel, Samir Patel, Archita Patel
Summary: Three sensitive spectrofluorimetric methods, RRS, FDS, and SOS, were developed and validated for the estimation of doxepin in human plasma and formulation samples. The methods involved the formation of an ion pair complex with eosin Y at a pH of 4.5 using liquid-liquid extraction. The FDS method exhibited the highest sensitivity with a detection limit of 1.20 ng/ml for doxepin.
Article
Chemistry, Analytical
Dongquan Leng, Jihao Zhao, Xiang Ren, Rui Xu, Lei Liu, Xuejing Liu, Yuyang Li, Qin Wei
Summary: In this study, a split-type immunoassay strategy initiated by cation exchange and altering the capacity of an electron donor was optimized, using MoSe2/CdSe as a photoelectrode substrate and silver ions as the initiator of CE. The combination of ascorbate oxidase with MSNs improved the sensor's sensitivity and reliability, resulting in a broad linear range and low detection limit when applied to neuron-specific enolase.
ANALYTICAL CHEMISTRY
(2021)
Article
Automation & Control Systems
Ming-Yue Dong, Hai-Long Wu, Tong Wang, Kun Huang, Ru-Qin Yu
Summary: This paper proposes two second-order calibration algorithms, TDR-ATLD and TDR-SWATLD, for directly decomposing three-way fluorescence data with scattering regions removed. The algorithms show better performance in dealing with fluorescence data with scattering compared to other algorithms. TDR-ATLD has faster convergence and greater potential in processing fluorescence data with scattering.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2023)
Article
Optics
Hongyu Yang, Wenbin Xiang, Xinting Zhao, Xuefeng Ge, Baohua Zhu, Yiping Cui, Jiayu Zhang
Summary: In this study, 4.5 monolayers thick CdSe nanoplatelets extended with CdS were synthesized, and their third-order nonlinear optical properties were measured. The effective passivation of CdSe boundary improved the quantum yield and third-order nonlinearity. These core/crown nanoplatelets exhibited excellent two-photon absorption property due to their quasi-type II band structure.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Peng Zhang, Liming Chen, Xiaoyan Cai, Binbin Luo, Tianju Chen, Haini Chen, Guoliang Chen, Feiming Li
Summary: A novel ratiometric fluorescence sensing system is proposed in this work, which combines a fluorescence wavelength shift and scattering in a single window using second-order scattering as the representative signal. The system is based on the halide exchange of CsPbBr3@SiO2 perovskite nanocrystal composites. The system demonstrates high reliability and reproducibility for ratiometric sensing of Cl- in serum without sample treatment, paving a new way for fluorescence sensing.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Electrical & Electronic
Ruoting An, Heng Gao, Shuangshuang Shi, Guantong Chen, Yonghui Zhang, Chong Geng, Shu Xu
Summary: The study finds that the thickness of SiO2 shell of QD@SiO2 has a significant impact on the optical performance of QCLEDs, with 20-30 nm SiO2 shell showing optimal efficiency at low power density, while 10-15 nm SiO2 shell is more favorable for reducing thermal quenching at high power density.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Biochemistry & Molecular Biology
Huajian Luo, Bo Li, Jiajia Liu, Yi Liu, Qi Xiao, Shan Huang
Summary: The research revealed that MoS2 QDs strongly bind with HSA, leading to conformational changes, reduced thermal stability, but also inhibition of fibrillation process.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Applied
Frederic Castet, Adrien Gillet, Filip Bures, Aurelie Plaquet, Vincent Rodriguez, Benoit Champagne
Summary: This study investigates the linear and nonlinear optical properties of a series of A-shaped derivatives and demonstrates that these compounds possess two low-lying excited electronic states close in energy, contributing additively to the first hyperpolarizability with a dominant dipolar character. The NLO responses significantly deviate from Kleinman's index permutation symmetry, as shown through both experimental and theoretical analyses.
Article
Biochemistry & Molecular Biology
Hua-jin Zeng, Li-jun Sun, Ling-bo Qu, Ran Yang
Summary: In this study, a novel glutathione functionalized MoS2 quantum dots (GSH-MoS2 QDs) were successfully synthesized with good biocompatibility and low cytotoxicity. The results showed that GSH-MoS2 QDs could effectively inhibit the aggregation of BSA and depolymerize the formed aggregates. This research suggests that GSH-MoS2 QDs have the potential to become a candidate drug for the treatment of amyloid-related diseases.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Materials Science, Multidisciplinary
Yasemin Gundogdu, Hamdi Sukur Kilic, Musa Cadirci
Summary: The study synthesized CdTe/CdSe Quasi Type-II Colloidal Quantum Dots with different shell thicknesses and found that Quantum dots with thicker shells exhibit slightly higher nonlinear absorption coefficients compared with thinner shells. Additionally, the pump power affects the nonlinear optical properties of the core/shell nanostructures.
Article
Physics, Applied
Xi-Kai Yang, Jia-Wei Qiao, Zhi-Hao Chen, Zhen-Chuan Wen, Hang Yin, Xiao-Tao Hao
Summary: By incorporating CdSe quantum dots as a third component, this study has successfully enhanced the current density and power conversion efficiency of organic solar cells. CdSe QDs modulate charge dynamics, increase fluorescence external quantum efficiency, and enable Forster resonance energy transfer and fast charge transfer in BHJ films, resulting in improved overall device performance.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Hui Zhang, Xiaohu Mi, Bowen Kang, Yunkai Wu, Tingting Zhang, Pai Liu, Xiaowei Sun, Zhenglong Zhang, Ning Liu, Hongxing Xu
Summary: Colloidal nanocrystals play a significant role in optoelectronic devices and their properties can be improved through ligand modification, which can enhance charge transport and emission characteristics in LEDs.
Article
Chemistry, Multidisciplinary
Guiqing Wen, Yang Xiao, Shuxin Chen, Xinghui Zhang, Zhiliang Jiang
Summary: A new method for detecting trace Co2+ in water was developed in this study, which is fast, stable, sensitive, and specific with dual mode characteristics. The method has been successfully applied to the detection of Co2+ in industrial wastewater, tap water, and river water.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Analytical
Guoliang Liu, Jingjing Lo, Da-Qian Feng, Jun-Jie Zhu, Wei Wang
ANALYTICAL CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Zhong-Xia Wang, Fen-Ying Kong, Wei Wang
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Electrochemistry
Jing-Yi Wang, Jin-Wei Zhang, Huan-Huan Xu, Wei-Xin Lv, Fen-Ying Kong, Wei Wang
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2016)
Article
Chemistry, Physical
Weixin Lu, Jing Zhou, Fenying Kong, Hailin Fang, Wei Wang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Chemistry, Analytical
Fen-Ying Kong, Yu Luo, Jin-Wei Zhang, Jing-Yi Wang, Wei-Wei Li, Wei Wang
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2016)
Article
Electrochemistry
Jingjing Bei, Rui Zhang, Zhidong Chen, Weixin Lv, Wei Wang
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2017)
Review
Biochemistry & Molecular Biology
Fen-Ying Kong, Jin-Wei Zhang, Rong-Fang Li, Zhong-Xia Wang, Wen-Juan Wang, Wei Wang
Article
Chemistry, Analytical
Zhong-Xia Wang, Jing-Yi Wang, Xian-He Yu, Fen-Ying Kong, Wen-Juan Wang, Wei-Xin Lv, Liya Ge, Wei Wang
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Zhong-Xia Wang, Fen-Ying Kong, Wen-Juan Wang, Rui Zhang, Wei-Xin Lv, Xian-He Yu, Hong-Cheng Pan, Wei Wang
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Hongbo Li, Jing Li, Yunfei Qiao, Hailin Fang, Dahe Fan, Wei Wang
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Multidisciplinary
Feng Li, Xian-He Yu, Fen-Ying Kong, Zhong-Xia Wang, Wei Wang
Article
Chemistry, Analytical
Guoliang Liu, Chenglei Xuan, Da-Qian Feng, Dongliang Hua, Tianhao Liu, Gang Qi, Wei Wang
ANALYTICAL METHODS
(2017)
Article
Chemistry, Analytical
Hengye Li, Xuemeng Zhang, Lin Zhang, Weihua Cheng, Fenying Kong, Dahe Fan, Lei Li, Wei Wang
ANALYTICA CHIMICA ACTA
(2017)
Article
Chemistry, Multidisciplinary
Weixin Lv, Jingjing Bei, Rui Zhang, Wenjuan Wang, Fenying Kong, Lei Wang, Wei Wang
Article
Chemistry, Analytical
Hengye Li, Xuemeng Zhang, Lin Zhang, Xiaojin Wang, Fenying Kong, Dahe Fan, Lei Li, Wei Wang
ANALYTICA CHIMICA ACTA
(2017)
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)