Article
Chemistry, Analytical
Matthew Humbert, Saiid Lewis, Anthony Borgerding
Summary: The method using a gas-phase microdialysis probe interfaced with a modified commercially available nitric oxide detector can selectively measure aqueous NO at low levels with high selectivity. The quick response time, continuous extraction, and rugged nature of the method make it useful for monitoring NO in biological applications.
Article
Microbiology
Rosemol Varghese, Soumya Basu, Ayyanraj Neeravi, Agilakumari Pragasam, V. Aravind, Richa Gupta, Angel Miraclin, Sudha Ramaiah, Anand Anbarasu, Balaji Veeraraghavan
Summary: This study investigates the impact of non-synonymous single-nucleotide polymorphisms (nsSNPs) in penicillin-binding proteins (PBPs) on Streptococcus pneumoniae resistance to penicillin and cefotaxime. The findings show that these nsSNPs lead to decreased susceptibility to meropenem and suggest the restriction of meropenem usage and combination therapy with non-PBP targeted antibiotics to prevent beta-lactam resistance.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Hangdao Qin, Hao Cheng, Wei Shi, Sizhan Wu, Jing Chen, Jiming Huang, Hui Li
Summary: Magnetic Ni0.5Zn0.5Fe2O4 was synthesized through a simple method and used to activate PMS for the degradation of CFX in water. Ni0.5Zn0.5Fe2O4 exhibited higher catalytic activity compared to ZnFe2O4 and NiFe2O4. Various factors affecting CFX degradation were investigated, and the generation of reactive species in the Ni0.5Zn0.5Fe2O4/PMS system was confirmed. XPS analysis revealed the mechanism of PMS activation by Ni0.5Zn0.5Fe2O4. The stability of Ni0.5Zn0.5Fe2O4 was demonstrated through reusability experiments. The Ni0.5Zn0.5Fe2O4/PMS system showed promising potential for antibiotic removal in environmental remediation, as demonstrated in real river water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Polymer Science
Turki Al Hagbani, Syed Mohd Danish Rizvi, Talib Hussain, Khalid Mehmood, Zeeshan Rafi, Afrasim Moin, Amr Selim Abu Lila, Farhan Alshammari, El-Sayed Khafagy, Mohamed Rahamathulla, Marwa H. Abdallah
Summary: In this study, gold nanoparticles were prepared using cefotaxime sodium, which showed improved antibacterial activity against resistant Gram-negative and Gram-positive bacteria.
Article
Infectious Diseases
Beatrix Wulkersdorfer, Felix Bergmann, Lisa Amann, Alexandra Fochtmann-Frana, Valentin Al Jalali, Elizaveta Kurdina, Edith Lackner, Sebastian G. Wicha, Christoph Dorn, Bruno Schaefer, Gerald Ihra, Thomas Rath, Christine Radtke, Markus Zeitlinger
Summary: This study investigated the pharmacokinetics of piperacillin/tazobactam in burn patients before and after albumin supplementation. The results showed that albumin supplementation had little impact on the pharmacokinetics of piperacillin/tazobactam. After albumin supplementation, there was a numerical increase in the AUC0-8 of total and unbound piperacillin/tazobactam, while similar Cmax values were observed. Future studies may explore the effect of albumin supplementation on drugs with higher plasma protein binding.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2023)
Article
Infectious Diseases
Johanne Gade Lilleore, Sofus Vittrup, Sara Kousgaard Tostesen, Pelle Hanberg, Maiken Stilling, Mats Bue
Summary: Microdialysis is a catheter-based method for dynamic sampling of unbound antibiotic concentrations, which may be a superior alternative to standard plasma sampling. In this study, concentrations of vancomycin and meropenem obtained by continuous intravenous microdialysis sampling were compared to standard plasma sampling in a porcine model. The results showed that standard plasma samples had higher area under the concentration/time curve and peak drug concentration compared to intravenous microdialysis samples for both vancomycin and meropenem. The differences in pharmacokinetic parameters highlight the importance of further investigations to find the most suitable and reliable method for continuous intravenous antibiotic concentration sampling.
Article
Chemistry, Multidisciplinary
Yanan Fu, Jin Li, Fang Feng, Lihui Yin
Summary: This study prepared and validated the chemical structures of cefotaxime dimer and trimer impurities obtained from the pharmaceutical industry. The impurities were separated and purified using RP-HPLC, and their structures were characterized using various spectroscopic techniques. The study confirmed the structure of the dimer and validated the polymerization sites and stereochemical configuration of the trimer.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mark T. Agasid, Lars Sorensen, Leonhard H. Urner, Jun Yan, Carol Robinson
Summary: The use of mass spectrometry to study G protein-coupled receptors has revealed insights into sodium binding and ligand-induced changes, providing valuable information for understanding GPCR function.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Yonghua Hu, Yuan Zhou, Xiaohua Hu, Qiaoling Chen, Yan Shi, Jiangxing Zhuang, Qin Wang
Summary: Cefotaxime sodium (CTX) was found to inhibit melanin synthesis by influencing the expression of various proteins related to melanogenesis. Additionally, CTX can regulate intracellular signaling pathways to inhibit melanin production. Furthermore, CTX has been shown to inhibit body pigmentation in zebrafish.
PROCESS BIOCHEMISTRY
(2021)
Article
Environmental Sciences
Yunxia Niu, Yue Yin, Runyu Xu, Zhinian Yang, Jia Wang, Duo Xu, Yue Yuan, Jinlong Han, Hao Wang
Summary: In this study, a stable Ti/SnO2-RuO2 anode was prepared successfully and used for the degradation of low concentration CFX using green and sustainable electrocatalytic oxidation technology. The effects of various parameters on the degradation efficiency were discussed, and the optimal conditions for CFX removal were identified. The electrochemical analysis and Fourier transform infrared spectroscopy provided insights into the degradation efficiency and process.
Article
Chemistry, Multidisciplinary
Nawal Ahmed Alarfaj, Wedad Altuhami Al-Onazi, Amal Mohammed Al-Mohaimeed, Maha Farouk El-Tohamy, Hadeel Abdulaziz Alabdulmonem
Summary: In this study, NiO and MnO2 nanoparticles were synthesized from green sources and used for spectrophotometric detection of cephalosporin antibiotics. The methods showed high accuracy in determining the drugs within different concentration ranges based on the unique optical properties of the nanoparticles.
Article
Chemistry, Analytical
Toshihiro Shimada, Honami Nishimoto, Hikaru Hayakawa, Hisashi Ichikawa, Yoshifumi Nakacho
Summary: We investigated the possibility of detecting water vapor through chemiluminescence using a popular chemical light reaction. The release of H2O2 from sodium percarbonate upon exposure to water vapor was confirmed by mass spectrometry in a vacuum. Chemiluminescence was observed when the mixed reagents were exposed to water vapor, allowing for the detection of faulty points in water barrier films and real-time observation of their failure during bending tests of flexible packing materials. Molecular dynamics simulation was used to study the diffusion of H2O2 molecules in polymers.
Article
Soil Science
Scott Buckley, Diane Allen, Richard Brackin, Susanne Schmidt
Summary: Measuring soil nitrogen is important for ecosystem productivity and N use efficiency in agriculture. Conventional soil sampling methods disturb soil structure and function, affecting accurate quantification. In situ microdialysis is a novel method that provides different N profiles. Differences between methods are due to minimal disturbance and sampling of a mobile N fraction with patterns across soils. Salt and aqueous extracts and microdialysis were compared in a lab experiment on sugarcane soils, showing differences in NH4+ and NO3 measurement and their correlation with soil properties. Sampling inorganic N is biased by soil disturbance, affecting soil N measurements.
Article
Chemistry, Analytical
Qinyu Wang, Jing Zhong, Kexin Li, Jiajun Wu, Xiaoxue Wang, Shen Jiang, Jiapei Dai, Yan Cheng
Summary: Protein aggregation plays a significant role in neurodegenerative diseases. In this study, a chemiluminescence-based approach was developed using a series of luminol analogues for in vivo detection and imaging of β-sheet protein aggregates. The CyLumi-3 probe demonstrated successful detection of α-synuclein aggregates in the brains of model mice, providing valuable insight for the understanding and intervention of protein aggregation in preclinical studies.
ANALYTICAL CHEMISTRY
(2022)
Article
Medical Laboratory Technology
Gustaf Beijer, Leona Clarin, Jennie oestervall, Victoria Barclay, Erik Eliasson
Summary: This study aimed to identify appropriate conditions for ultrafiltration (UF) in order to isolate unbound plasma fractions of certain drugs. By comparing UF-derived unbound concentrations with a reference method, the authors found that UF conditions with a relative centrifugal force of 11,290g and temperature of 22 degrees Celsius yielded the best agreement with the reference method.
THERAPEUTIC DRUG MONITORING
(2023)
Review
Chemistry, Multidisciplinary
Qun He, Sicong Qiao, Yuzhu Zhou, Robert Vajtai, Deping Li, Pulickel M. Ajayan, Lijie Ci, Li Song
Summary: This review summarizes the research progress of carbon nanotubes (CNTs)-based electrocatalysts in various electrochemical reactions and highlights the structure regulation methods. The functions of CNTs-based electrocatalysts in electrochemical reactions and the support effect related to CNTs are discussed.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Naixuan Ci, Lin Zhang, Jianwei Li, Deping Li, Jun Cheng, Qing Sun, Zhenjie Xi, Zhou Xu, Guoqing Zhao, Lijie Ci
Summary: The development of solid-state lithium-metal batteries is hindered by poor interface stability between solid-state electrolytes and lithium metal anodes. A flexible rGO film with uniformly distributed ZnO was successfully constructed at the interface between NASICON-type LAGP and Li metal anode, providing good interfacial contact and preventing side reactions. Symmetric cells with this design structure showed high critical current density and stable cycling performance, while full batteries with LFP/Li also demonstrated excellent capacity retention and long cycling performance.
Article
Chemistry, Multidisciplinary
Qing Sun, Maoxiang Yang, Guifang Zeng, Jing Li, Zhibiao Hu, Deping Li, Shang Wang, Pengchao Si, Yanhong Tian, Lijie Ci
Summary: This study proposes a facile structural engineering strategy for encapsulating SnSe in a carbon shell, which improves the electrochemical performance of potassium-ion battery anode materials. The heteroatomic doped carbon shows a favorable affinity towards potassium ions and potassiation products, enhancing the rate performance and capacity retention. The in situ X-ray diffraction characterization reveals the phase evolution of the SnSe@C electrode during the potassiation/depotassiation process.
Article
Chemistry, Physical
Yihong Liang, Wanbao Wu, Deping Li, Hao Wu, Chaochao Gao, Zhengjian Chen, Lijie Ci, Jiaheng Zhang
Summary: A non-flammable deep eutectic solvent (DES) is chosen as the electrolyte for lithium metal batteries (LMBs) in this study. The strong interaction between the DES and lithium nitrate (LiNO3) improves the solubility of LiNO3 and leads to stable anion-rich solid electrolyte interphase (SEI) layers. The combination of DES and LiNO3 enhances the uniformity of lithium deposition and results in significantly better cycling performance compared to conventional carbonate-based electrolytes.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jianwei Li, Yuanyuan Li, Shengnan Zhang, Tao Liu, Deping Li, Lijie Ci
Summary: In this study, a lithium iodide (LiI) layer was synthesized at the interface of the lithium metal-sulfide electrolyte membrane. The synthesized LiI layer showed satisfactory ionic conductivity and high interfacial energy. The resulting all-solid-state batteries exhibited high discharge capacity and excellent capacity retention, which facilitates the practical application of high-energy-density sulfide-based all-solid-state batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Jia-Lin Liao, Shuai Zhang, Tian-Sheng Bai, Feng-Jun Ji, De-Ping Li, Jun Cheng, Hong-Qiang Zhang, Jing-Yu Lu, Quan Gao, Li-Jie Ci
Summary: Researchers synthesized a lithiophilic 3D copper foam host with uniformly distributed nano-flower-like ZnO particles (CuF/ZnO) and obtained a composite lithium metal anode (CuF/Li2O-LiZn@Li) containing Li2O, LiZn alloy, and pure Li by infusion of molten Li. The composite lithium metal anode, benefiting from the 3D structure of copper foam and the lithiophilicity of ZnO sites, can restrain volume alteration and regulate uniform lithium deposition. The symmetrical cells of the composite lithium metal anode exhibit a 1600-hour long cycle life with a low polarization voltage of 15 mV, and the Coulombic efficiency can maintain about 97.8% at 1.0 mA·cm(-2), 1.0 mAh·cm(-2).
Article
Materials Science, Multidisciplinary
Ruiqin Peng, Xuzhen Zhuang, Yuanyuan Li, Zhiguo Yu, Lijie Ci
Summary: SnO2 nanowires were synthesized locally by thermal evaporation method and its growth mechanism was confirmed. We proposed a simple strategy to achieve reduced graphene oxide (RGO)/SnO2 nanowires heterostructure. As expected, the gas-sensing response of the heterostructure was up to 63.3 when the gas concentration of trimethylamine (TEA) was 50 ppm, and it exhibited excellent dynamic response with high stability at 180 degrees C. A low detection limit of 50 ppb level was fully realized. Compared to SnO2 nanowires, the sensing performance of the RGO/SnO2 heterostructure-based sensor was greatly enhanced, attributed to the presence of RGO and heterostructure. The RGO/SnO2 composite engineering provided an easy way to make full use of the advantages originating from RGO and heterostructure.
Article
Materials Science, Multidisciplinary
Zhen Zeng, Jun Cheng, Yuanyuan Li, Hongqiang Zhang, Deping Li, Hongbin Liu, Fengjun Ji, Qing Sun, Lijie Ci
Summary: All-solid-state lithium battery (ASSLB) is considered as a promising candidate for future energy storage system. Constructing composite cathode can effectively improve the ion transport kinetics and enhance the energy density of ASSLBs. This review evaluates the factors, interfacial stability issues, optimization strategies, and fabrication methods of composite cathodes.
MATERIALS TODAY PHYSICS
(2023)
Article
Energy & Fuels
Jianwei Li, Yuanyuan Li, Shengnan Zhang, Deping Li, Lijie Ci
Summary: This study presents a strategy to obtain sulfide solid electrolyte with excellent interfacial compatibility and high ionic conductivity through two-step sintering. The obtained electrolyte shows good interfacial compatibility with lithium metal and improved critical current density, leading to high discharge capacity in all-solid-state batteries. This research provides a novel and effective strategy for tuning the properties of sulfide electrolyte and promotes the practical application in sulfide-based all-solid-state batteries.
Article
Environmental Sciences
Qiong Chen, Xiufeng Cao, Biao Yan, Zhijiang Guo, Zhenjie Xi, Jianwei Li, Naixuan Ci, Mei Yan, Lijie Ci
Summary: This study evaluated the toxicity of functional carbon nanodots (FCNs) to zebrafish through acute toxicity tests at the embryonic and adult stages. The results showed that FCNs and nitrogen-doped FCNs (N-FCNs) caused developmental retardation, cardiovascular toxicity, renal damage, and hepatotoxicity in zebrafish. The main reason for these effects was the oxidative damage induced by high doses of materials and the biodistribution of FCNs and N-FCNs in the fish. However, FCNs and N-FCNs also promoted the antioxidant activity in zebrafish tissues to counteract the oxidative stress. Both FCNs and N-FCNs were proven to be biosecure to zebrafish, with FCNs showing higher biosecurity due to their physicochemical properties. The effects of FCNs and N-FCNs on hatching rates, mortality rates, and developmental malformations were dose-dependent and time-dependent. The toxicity ratings of FCNs and N-FCNs were defined as practically nontoxic for zebrafish embryos, and FCNs were relatively harmless. These results confirm the biosecurity of FCNs-based materials for future practical applications.
Review
Materials Science, Multidisciplinary
Yu-Han Wu, Wei-Hao Xia, Yun-Zhuo Liu, Peng-Fei Wang, Yu-Hang Zhang, Jin-Ru Huang, Yang Xu, De-Ping Li, Li-Jie Ci
Summary: Potassium-ion batteries (PIBs) have been recognized as a promising electrochemical energy storage technology due to their cost competitiveness and similar electrochemical properties to lithium-ion batteries. Developing electrode materials with high specific capacities, superior cycling stability, and reliable safety is crucial for promoting their commercial application. Two-dimensional transition metal chalcogenides (2D TMCs), particularly molybdenum chalcogenides and tungsten chalcogenides, have attracted significant attention for their unique material and electrochemical properties. However, further research is needed to address remaining challenges and uncertainties.
Review
Chemistry, Multidisciplinary
Tiansheng Bai, Deping Li, Shenyi Xiao, Fengjun Ji, Shuai Zhang, Chu Wang, Jingyu Lu, Quan Gao, Lijie Ci
Summary: Lithium-air batteries (LABs) have shown potential due to their high theoretical energy density, but face challenges such as low catalytic activity, high overpotential, low reversibility, and poor cyclability. Single-atom catalysts (SACs) have emerged as a promising solution, with their high atom utilization and cost-effectiveness. This review introduces the structure, synthesis methods, and reported SACs for LABs based on oxygen and carbon dioxide chemistry, as well as their progress in regulating the lithium metal anode. The challenges, opportunities, and future perspectives of SACs in LABs are comprehensively discussed.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiuling Shi, Yuchuan Sun, Yibo Weng, Xiaoying Long, Tongxing Lei, Jianli Zhou, Deping Li, Jin Zhang, Yan Huang, Lijie Ci, Kaikai Li, Tong-Yi Zhang
Summary: In this study, the structure of the cathode material for zinc-ion batteries is modified to improve the stability and cycle life of the batteries. The introduction of CNTs is found to reduce the strain in the cathode material, leading to enhanced stability, high capacity, and long cycle life.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Electrochemistry
Jun Cheng, Hongqiang Zhang, Deping Li, Yuanyuan Li, Zhen Zeng, Fengjun Ji, Youri Wei, Xiao Xu, Qing Sun, Shang Wang, Jingyu Lu, Lijie Ci
Summary: Garnet-type solid electrolytes are commonly used as fillers in polymer electrolytes to improve ionic conductivity and enhance mechanical strength. However, the presence of passive layers on the surface of garnet reduces its effectiveness. By modifying garnet fillers with an amphipathic coupling agent, the air stability of garnet is extended and the dispersion in the polymer matrix is improved. This leads to improved performance of the composite electrolyte.
Article
Chemistry, Physical
Deping Li, Fengjun Ji, Tianqi Liu, Xiaoyu Zhao, Qing Sun, Yunzhuo Liu, Yiwei Wang, Jiaheng Zhang, Lijie Ci
Summary: Potassium and sodium ion batteries are considered as promising energy storage devices due to their low cost and high availability. However, their large ionic radius poses challenges in finding suitable electrode materials. In this study, waste agarose from bio labs is transformed into high-performance carbonaceous electrode materials for Na/K-ion batteries. With the use of dual heteroatom doping strategy, the synthesized carbons exhibit unique properties that enhance capacitive behaviors and improve battery performance. This work provides a practical strategy for searching and developing electrode materials for Na/K-ion batteries, while also deepening the understanding of structure-performance correlations for carbon electrodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
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)
