Article
Chemistry, Analytical
Mariacristina Turino, Ramon A. Alvarez-Puebla, Luca Guerrini
Summary: This study presents a novel surface-enhanced Raman scattering (SERS) spectroscopy platform for the dynamic sensing of biothiols. By using colloidally stable silver nanoparticles clusters equipped with a specifically designed azobenzene derivative, significant spectral changes can be observed in the presence of small biothiols, which can be quantitatively correlated with the biothiol content.
Article
Chemistry, Multidisciplinary
Kosti Tapio, Amr Mostafa, Yuya Kanehira, Antonio Suma, Anushree Dutta, Ilko Bald
Summary: DNA origami technology enables precise assembly of chemical entities at the nanoscale, creating sophisticated functional materials. By assembling Au or Ag nanoparticle dimers, a versatile DNA origami nanofork antenna (DONA) has been developed, achieving signal enhancements in surface-enhanced Raman scattering (SERS) up to 10(11). Using the DNA origami structure, single-molecule SERS measurements of three dyes, cytochrome c, and horseradish peroxidase proteins have been successfully demonstrated.
Article
Biochemistry & Molecular Biology
Aleksandra Michalowska, Andrzej Kudelski
Summary: The study introduces a novel magnetic-silver plasmonic nanomaterial that can be manipulated using a magnetic field and applied in Raman spectroscopy. By creating nanoresonators on silver plasmonic structures, the intensity of electromagnetic radiation can be enhanced across a wider frequency range.
Review
Biochemistry & Molecular Biology
Antonio Sasso, Angela Capaccio, Giulia Rusciano
Summary: This review focuses on the recent studies conducted by our group in the past decade, where novel nanofabrication techniques were successfully applied to SERS and TERS experiments for studying bio-systems and molecular species of environmental interest.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Chemistry, Multidisciplinary
Kim-Hung Huynh, Eunil Hahm, Mi Suk Noh, Jong-Hwan Lee, Xuan-Hung Pham, Sang Hun Lee, Jaehi Kim, Won-Yeop Rho, Hyejin Chang, Dong Min Kim, Ahruem Baek, Dong-Eun Kim, Dae Hong Jeong, Seung-min Park, Bong-Hyun Jun
Summary: Magnetic plasmonic particles (MPPs) serve as an advanced SERS detection platform with synergistic effects of magnetic and plasmonic properties, offering functions such as separation, drug delivery, and therapeutic applications. Literature explores the structure and multifunctionality of MPPs, enabling novel applications in various biological fields.
Article
Chemistry, Analytical
Yurong Zhuang, Chenchen Wang, Yong Wang, Yuhui Chen, Songqin Liu, Wei Wei
Summary: It was found for the first time that vanillin and TMB can reduce Tollens' reagent to different types of Ag nanoparticles. Based on this, a dual-mode detection method for vanillin was designed using colorimetry and SERS. This method allows for rapid, visual and highly sensitive detection of vanillin.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Review
Chemistry, Multidisciplinary
Ilya A. Milekhin, Alexander G. Milekhin, Dietrich R. T. Zahn
Summary: This study presents the optical response of spherical CdSe nanocrystals using SERS and TERS techniques, achieving significant enhancement of optical phonons by selecting appropriate plasmonic substrates. Combining Raman scattering with atomic force microscopy offers nanoscale spatial resolution for investigating phonon properties. Gap-mode TERS further enhances Raman scattering of CdSe NCs' optical phonon modes with nanometer spatial resolution, providing new pathways for optical characterization and phonon spectrum details at the nanometer scale of single semiconductor nanostructures.
Article
Materials Science, Multidisciplinary
Miao Yu, Qihang Tian, Guangyuan He, Kaimin Cui, Jihong Zhang
Summary: Surface-enhanced Raman scattering (SERS) is a novel method for low concentration molecular detection, and tapered fiber SERS probes based on silver nanocubes exhibit high sensitivity. These probes can be used for both qualitative and quantitative analysis, with an optimal cone angle of 8.3 degrees.
ADVANCED FIBER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Lin Zhu, Zhen Meng, Saizhen Hu, Tiancong Zhao, Bing Zhao
Summary: The study focuses on the plasmonic coupling between noble-metal and semiconductor nanostructures, and reveals the enhanced charge transfer and surface-enhanced Raman scattering (SERS) signals in a designed W18O49/Ag heterostructure. A new coupled-plasmon-induced charge transfer mechanism is proposed, providing insight for further studies on plasmonic effects and interfacial charge transfer in metal/semiconductor heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Swapnil Singh, Aishwarya Agarwal, Anamika Avni, Samrat Mukhopadhyay
Summary: The study demonstrates that electrostatic tethering between surface-modified negatively charged silver nanoparticles and highly positively charged intrinsically disordered N-terminal domain of the prion protein enables highly sensitive protein detection at low concentrations. This novel approach provides a potent and reproducible method for characterizing proteins at nanomolar concentrations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Lin Zhu, Zhen Meng, Saizhen Hu, Tiancong Zhao, Bing Zhao
Summary: In this study, we for the first time observed and considered the plasmonic coupling between noble-metal and semiconductor nanostructures in metal/semiconductor heterostructures, using a W18O49/Ag heterostructure composed of Ag nanoparticles and W18O49 nanowires. The heterogeneous structure exhibited a broad and strong surface plasmon resonance (SPR) absorption in the visible wavelength range. Surface-enhanced Raman scattering (SERS) was used to investigate the interactions between metal SPR, semiconductor SPR, and the heterostructure's charge transfer process, revealing that the coupled SPR enhanced the heterostructure's internal charge transfer and SERS signals. A new coupled-plasmon-induced charge transfer mechanism was proposed to explain the improved charge transfer efficiency. This work provides insights for further studies on plasmonic effects and interfacial charge transfer in metal/semiconductor heterostructures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Yu Fukunaga, Makoto Harada, Tetsuo Okada
Summary: Freezing is proposed as an efficient way to enhance sensitivity and reproducibility in SERS measurements, maximizing signal intensity and preparing a high-performance SERS platform through simple methods.
Article
Chemistry, Multidisciplinary
Lei Ouyang, Tobias Meyer-Zedler, Kel-Meng See, Wei-Liang Chen, Fan-Cheng Lin, Denis Akimov, Sadaf Ehtesabi, Martin Richter, Michael Schmitt, Yu-Ming Chang, Stefanie Grafe, Jurgen Popp, Jer-Shing Huang
Summary: This study investigates the enhancement effect of plasmonic gratings in nonlinear surface-enhanced coherent anti-Stokes Raman scattering (SECARS) using the platform of plasmonic Doppler grating (PDG). The PDGs spatially separate the input and output enhancement, allowing for observation and comparison of overall enhancement from different combinations of individual input and output beams. The results indicate that enhancement in the pump and anti-Stokes beams plays a more critical role in the overall enhancement than that in the Stokes beam.
Review
Chemistry, Physical
Elizaveta Demishkevich, Andrey Zyubin, Alexey Seteikin, Ilia Samusev, Inkyu Park, Chang Kwon Hwangbo, Eun Ha Choi, Geon Joon Lee
Summary: The purpose of this paper is to provide a comprehensive review of plasmonic metal nanoparticles made from rhodium, platinum, gold, or silver. The paper discusses fundamental concepts, synthesis methods, and optical sensing applications of these nanoparticles. Plasmonic metal nanoparticles have gained significant interest due to their potential for highly sensitive detection of analytes in various fields.
Article
Chemistry, Analytical
Lanxin Xu, Jiali Ma, Guodong Wei, Chenjie Gu, Tao Jiang
Summary: This study introduces a novel self-energized hybrid substrate for surface-enhanced Raman scattering (SERS) technique, utilizing a distinctive piezoelectric polyvinylidene fluoride (PVDF) film and hydrophilic-hydrophobic strategy. By pressing or bending the PVDF film, the enhanced localized electromagnetic field of Ag nanoparticles (Ag NPs) can be rationally induced, leading to tunable ultra-high sensitivity. The quantitative level of detection is further improved by uniformly anchoring and enriching analytes using a facile hydrophilic-hydrophobic strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Anastasia Skvortsova, Andrii Trelin, Pavel Kriz, Roman Elashnikov, Barbora Vokata, Pavel Ulbrich, Alexandra Pershina, Vaclav Svorcik, Olga Guselnikova, Oleksiy Lyutakov
Summary: This study combines DNA-targeted surface functionalization, SERS measurements, and decision system to detect antibiotic susceptibility markers with high confidence, allowing manipulation with complex multicomponent samples and automatically determining the required number of samples, achieving high confidence detection of targeted ODN.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Tereza Capkova, Tomas Pekarek, Barbora Hanulikova, Pavel Matejka
Summary: This study focuses on analyzing pharmaceutical tablets with different technological parameters using Raman micro-spectroscopy technique. Advanced statistical analysis methods such as Principal Component Analysis, Soft Independent Modelling of Class Analogy, and Linear Discriminant Analysis successfully distinguished and identified small differences in the tablets, providing objective statistic evaluation of Raman maps. The combination of these methods enabled the researchers to obtain critical information on component and particle size distribution.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Review
Virology
Lucie Hozakova, Barbora Vokata, Tomas Ruml, Pavel Ulbrich
Summary: Various strategies have been developed to combat viral infections, including vaccines and antiviral compounds; The combination of multiple antiviral strategies or compounds is crucial in RNA virus research; Research on compounds targeting viral capsid proteins of RNA viruses is a rapidly evolving field.
Article
Medicine, General & Internal
Pauline Bakibinga, Caroline Kabaria, Ziraba Kasiira, Peter Kibe, Catherine Kyobutungi, Nelson Mbaya, Blessing Mberu, Shukri Mohammed, Anne Njeri, Iqbal Azam, Romaina Iqbal, Ahsana Nazish, Narijis Rizvi, Syed A. K. Shifat Ahmed, Nazratun Choudhury, Ornob Alam, Afreen Zaman Khan, Omar Rahman, Rita Yusuf, Doyin Odubanjo, Motunrayo Ayobola, Olufunke Fayehun, Akinyinka Omigbodun, Mary Osuh, Eme Owoaje, Olalekan Taiwo, Richard J. Lilford, Jo Sartori, Samuel Watson, Peter J. Diggle, Navneet Aujla, Yen-Fu Chen, Christopher Conlan, Paramjit Gill, Frances Griffiths, Bronwyn Harris, Jason Madan, Helen Muir, Oyinlola Oyebode, Vangelis Pitidis, Joao Porto de Albuquerque, Simon Smith, Celia Taylor, Grant Tregonning, Philip Ulbrich, Olalekan A. Uthman, Ria Wilson, Godwin Yeboah, Ji-Eun Park, Sam Watson
Summary: This study surveyed the availability and use of primary care services in slum populations in four countries. The majority of consultations were with doctors, nurses, and pharmacies, and were mainly for acute symptoms. However, costs were high compared to income and usage rates were lower than in high-income countries.
Article
Nanoscience & Nanotechnology
Vasilii Burtsev, Elena Miliutina, Pavel Ulbrich, Roman Elashnikov, Vaclav Svorcik, Martin Orendac, Oleksiy Lyutakov
Summary: This paper presents a method for plasmon-induced organic reactions using the coupling enhancement between silver nanoparticles and gold gratings, which leads to highly efficient plasmon-triggered reactions.
ACS APPLIED NANO MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Leonid Sushytskyi, Andriy Synytsya, Tamilla Mirzayeva, Tereza Kalouskova, Roman Bleha, Jana Copikova, David KubaC, Tomas Grivalsky, Pavel Ulbrich, Petr Kastanek
Summary: The water-insoluble part of Parachlorella kessleri HY1 biomass was subjected to various extraction methods to obtain cell-wall polysaccharides. Proteins and different polysaccharides were identified and their potential role in the cell wall structure of microalgae was discussed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Microbiology
Marco A. Lopez Marin, Jachym Suman, Kunal Jani, Pavel Ulbrich, Tomas Cajthaml, Petr Pajer, Jacqueline Wolf, Meina Neumann-Schaal, Michal Strejcek, Ondrej Uhlik
Summary: A novel orange-golden iridescent bacterium, Pedomonas mirosovicensis, was isolated from compost soil. It belongs to the family Sphingosinicellaceae and forms a distinct lineage within this family. Phylogenetic and genomic analyses confirmed its uniqueness.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Engineering, Environmental
Viktoria Neubertova, Olga Guselnikova, Yusuke Yamauchi, Anastasia Olshtrem, Silvie Rimpelova, Erik Cizmar, Martin Orendac, Jan Duchon, Lenka Volfova, Jan Lancok, Vit Herynek, Premysl Fitl, Pavel Ulbrich, Ludek Jelinek, Patrik Schneider, Juraj Kosek, Pavel Postnikov, Zdenka Kolska, Vaclav Svorcik, Sergii Chertopalov, Oleksiy Lyutakov
Summary: This study explores the covalent functionalization of MXenes for bioimaging applications. By using a chelating agent and Gd3+ ions, the commonly diamagnetic MXenes were transformed into paramagnetic materials, enabling their use in magnetic resonance imaging. Covalent functionalization not only enhanced the stability and cytocompatibility of MXenes but also prevented the leakage of Gd3+ ions. This work expands the bioapplication of MXenes by introducing an MRI contrast and developing covalent functionalization strategies.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biophysics
Martin Kral, Marcela Dendisova, Pavel Matejka, Jan Svoboda, Ognen Pop-Georgievski
Summary: Polydopamine (PDA) is widely used for protective adhesive layers in biomedical and tribological applications. This study investigates the binding mechanism of PDA to substrates and the influence of deposition time on molecular structure by preparing PDA layers with different deposition times.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Microbiology
Patricie Vodickova, Jachym Suman, Eva Benesova, Michal Strejcek, Meina Neumann-Schaal, Tomas Cajthaml, Jakub Ridl, Petr Pajer, Pavel Ulbrich, Ondrej Uhlik, Petra Lipovova
Summary: A new species of Arthrobacter, named Arthrobacter polaris, was isolated from a fellfield soil sample collected from frost-sorted polygons on Signy Island in the Maritime Antarctic. The strain exhibited unique characteristics in terms of its morphology, growth conditions, and genetic sequences.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Electrochemistry
Gabriela Soukupova, Tereza Bautkinova, Petr Mazur, Jarmila Vilcakova, Jan Prokes, Marcela Dendisova, Miloslav Lhotka, Fatima Hassouna
Summary: In this study, flexible, lightweight, and electrically conductive composites based on renewable resources were developed for high performance sustainable energy storage devices. The correlation between the textural properties of the composite electrodes and the resulting properties was established. The composite electrodes exhibited remarkable cycling stability and specific capacitance retention.
ELECTROCHIMICA ACTA
(2023)
Article
Microbiology
Marco A. Lopez Marin, Jachym Suman, Kunal Jani, Pavel Ulbrich, Tomas Cajthaml, Alena Filipova, Petr Pajer, Meina Neumann-Schaal, Michal Strejcek, Ondrej Uhlik
Summary: The Actinobacterial strain A5X3R13(T) was identified as a distinct lineage within the family Nocardioidaceae based on phylogenetic and genomic analyses. It is proposed as a new genus and species, Solicola gregarius gen. nov., sp. nov., based on its phylogenetic and phenotypic characteristics compared to other members of the family Nocardioidaceae.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Robert Pola, Matej Vicha, Jiri Trousil, Eliska Grosmanova, Michal Pechar, Anna Rumlerova, Martin Studenovsky, Emilie Kucerova, Pavel Ulbrich, Barbora Vokata, Tomas Etrych
Summary: Microbial resistance is a significant issue in modern medicine. Antimicrobial peptides have shown potential as a solution, but their limitations in stability, toxicity, and immunogenic response have hindered their clinical application. In this study, polymer-antibacterial peptide constructs were designed and synthesized. The constructs demonstrated antibacterial activity against both gram-positive and negative bacteria, with the peptide being released from the polymer carrier in response to a pH decrease.
Article
Chemistry, Analytical
Gabriela Broncova, Tatiana V. V. Shishkanova, Pavel Matejka
Summary: A three-layer electrode composed of PTh, PANI, and PNR was developed and characterized for potentiometric sensing of citrates. Raman spectroscopy and scanning electron microscopy confirmed the formation of individual polymeric layers, with the three-layer system showing a more organized structure than the PNR layer alone. The three-layer system exhibited the highest selectivity towards citrates and eliminated unwanted interference from the underlying Pt surface. The potentiometric sensor displayed excellent performance in detecting citrates in real-world samples, comparable to capillary electrophoresis and spectrophotometric methods.
Article
Chemistry, Multidisciplinary
Giyaullah Habibullah, Jitka Viktorova, Pavel Ulbrich, Tomas Ruml
Summary: This study investigates the effects of long-term storage on the physicochemical changes of green synthesized silver nanoparticles (AgNPs), highlighting the importance of stability and antimicrobial properties. The results show that AgNPs exhibit excellent stability and antimicrobial activity under dark storage conditions at room temperature, but their antimicrobial potential gradually decreases over time.
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)
