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Journal of Applied Spectroscopy最新文献

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Solvatochromism, Hydrogen Bonding Induced Charge Transfer, and Influence of pH on Electronic Absorption Spectra of Murexide 溶解变色、氢键诱导电荷转移以及 pH 值对氧化亚甲基脲电子吸收光谱的影响
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-19 DOI: 10.1007/s10812-024-01824-7
Sokaina Saad Hemdan, Mamdouh S. Masoud, Rehab M. I. Elsamra
{"title":"Solvatochromism, Hydrogen Bonding Induced Charge Transfer, and Influence of pH on Electronic Absorption Spectra of Murexide","authors":"Sokaina Saad Hemdan,&nbsp;Mamdouh S. Masoud,&nbsp;Rehab M. I. Elsamra","doi":"10.1007/s10812-024-01824-7","DOIUrl":"10.1007/s10812-024-01824-7","url":null,"abstract":"<p>A study of the solvent effect was used to describe the pronounced change in position of the UV-Visible absorption band associated with changing the polarity of the medium. Murexide compound which has different position of UV-Visible absorption band in the protic and nonprotic solvents. Various solvent parameters, such as dielectric constant, refractive index, Kamlet–Taft and Catalán parameters were used for the evaluation of the solute–solvent interactions and the solvatochromic shifts of the UV-Vis absorption maximum of the investigated indicator. The phenomenon of tautomerism is explained. The Kamlet–Taft solvent scale was found to be the most appropriate to describe the solvatochromic behavior of the Murexide. The dissociation constant pK<sub>a</sub> and the isosbestic point of the investigated compound showed the presence of the individual predominate ionic species in different pH ranges.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1086 - 1096"},"PeriodicalIF":0.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid Structures Based on Silver Nanoparticles and Polyelectrolytes for Sensitive Fluorescent Solid-Phase Immunoassay 基于银纳米粒子和聚电解质的杂化结构用于灵敏的荧光固相免疫测定
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01816-7
O. S. Kulakovich, A. A. Ramanenka, I. V. Koktysh, Ya. I. Melnikova, V. I. Stsiapura, S. V. Gaponenko, S. A. Maskevich
{"title":"Hybrid Structures Based on Silver Nanoparticles and Polyelectrolytes for Sensitive Fluorescent Solid-Phase Immunoassay","authors":"O. S. Kulakovich,&nbsp;A. A. Ramanenka,&nbsp;I. V. Koktysh,&nbsp;Ya. I. Melnikova,&nbsp;V. I. Stsiapura,&nbsp;S. V. Gaponenko,&nbsp;S. A. Maskevich","doi":"10.1007/s10812-024-01816-7","DOIUrl":"10.1007/s10812-024-01816-7","url":null,"abstract":"<p>The effect of surface modification of polystyrene plates for immunoassay with silver nanoparticles and polyelectrolytes on the fluorescent signal of adsorbed antibodies with fluorescent labels IgG-FITC, IgG-AF488 and IgG-AF647 was studied. The resulting solid phase was characterized by a sorption capacity increased by 30–50% as compared to high-binding polystyrene (Greiner, Austria) and the ability to enhance the fluorescent signals of the labels due to a plasmonic effect, which together increased the fluorescence intensity by 3–15 times, depending on the type of plate surface, the nature of the polyelectrolyte, and the optical and physicochemical properties of the labeled antibodies.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1025 - 1031"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of Photochromism in Poly(Vinyl Alcohol)–Phosphotungstic Acid Nanocomposites Using a Low-Molecular-Weight Alcohol Additive 使用低分子量酒精添加剂增强聚乙烯醇-磷钨酸纳米复合材料的光致变色性
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01818-5
A. A. Gorbachev, O. N. Tretinnikov
{"title":"Enhancement of Photochromism in Poly(Vinyl Alcohol)–Phosphotungstic Acid Nanocomposites Using a Low-Molecular-Weight Alcohol Additive","authors":"A. A. Gorbachev,&nbsp;O. N. Tretinnikov","doi":"10.1007/s10812-024-01818-5","DOIUrl":"10.1007/s10812-024-01818-5","url":null,"abstract":"<p>Poly(vinyl alcohol) (PVA)–phosphotungstic acid (PTA) nanocomposite films were prepared from aqueous solutions with added ethylene glycol (EG), which is a plasticizer for PVA and contains OH groups, capable of being electron donors in the photoreduction of PTA. Spectroscopic studies have shown that the addition of EG significantly enhances the photochromic properties of the resultant nanocomposites due to photoinduced electron transfer from the organic matrix of the nanocomposite to PTA molecules.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1042 - 1046"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the Mechanism of Polycondensation Synthesis of Molybdenum Trioxide Under Solvothermal Conditions Using Dynamic Light Scattering 利用动态光散射研究溶热条件下缩聚合成三氧化钼的机理
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01811-y
T. V. Sviridova, V. E. Agabekov, D. V. Sviridov
{"title":"Investigation of the Mechanism of Polycondensation Synthesis of Molybdenum Trioxide Under Solvothermal Conditions Using Dynamic Light Scattering","authors":"T. V. Sviridova,&nbsp;V. E. Agabekov,&nbsp;D. V. Sviridov","doi":"10.1007/s10812-024-01811-y","DOIUrl":"10.1007/s10812-024-01811-y","url":null,"abstract":"<p>Formation and dispersion processes of monoclinic and hexagonal molybdenum-trioxide phases during thermally induced polycondensation of molybdic acid in aqueous medium at 100°C were investigated using dynamic light scattering. Programmed variation of the reaction medium concentration made it possible to control effectively particle nucleation and growth in the solution. Right prismatic crystallites of metastable hexagonal molybdenum trioxide with an average size from 200–500 nm to 10 μm could be obtained.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"989 - 993"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural, Optical, and Electrophysical Properties of La0.13Bi0.87FeO3 Films Obtained by High-Frequency Laser Evaporation in Vacuum 在真空中通过高频激光蒸发获得的 La0.13Bi0.87FeO3 薄膜的结构、光学和电物理特性
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01813-w
M. V. Bushinsky, A. N. Chobot, L. V. Baran, V. V. Malyutina-Bronskaya, B. M. Obradovic, N. M. Sakan, N. A. Bosak
{"title":"Structural, Optical, and Electrophysical Properties of La0.13Bi0.87FeO3 Films Obtained by High-Frequency Laser Evaporation in Vacuum","authors":"M. V. Bushinsky,&nbsp;A. N. Chobot,&nbsp;L. V. Baran,&nbsp;V. V. Malyutina-Bronskaya,&nbsp;B. M. Obradovic,&nbsp;N. M. Sakan,&nbsp;N. A. Bosak","doi":"10.1007/s10812-024-01813-w","DOIUrl":"10.1007/s10812-024-01813-w","url":null,"abstract":"<p>Nanostructured thin films on a silicon substrate were obtained by the action of high-frequency repetitively pulsed f ~ 10–13 kHz laser radiation with wavelength λ = 1.064 μm and power density q = 57 MW/cm<sup>2</sup> on an La<sub>0.13</sub>Bi<sub>0.87</sub>FeO<sub>3</sub> target at a pressure in the vacuum chamber p = 4.6 Pa. The morphology of the La<sub>0.13</sub>Bi<sub>0.87</sub>FeO<sub>3</sub> thin films was studied using atomic force microscopy. Transmission spectra of the films in the visible and near- and mid-IR regions were obtained. The electrophysical characteristics of the La<sub>0.13</sub>Bi<sub>0.87</sub>FeO<sub>3</sub> structures were analyzed.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1003 - 1009"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amplification of the Surface-Enhanced Raman Scattering Signal from a Monolayer of Organic Molecules in Sandwich Structures Containing Plasmonic Silver Nanoplates 在含有等离子银纳米板的夹层结构中放大单层有机分子的表面增强拉曼散射信号
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01814-9
P. O. Malakhovsky, A. A. Ramanenka, M. V. Artemyev
{"title":"Amplification of the Surface-Enhanced Raman Scattering Signal from a Monolayer of Organic Molecules in Sandwich Structures Containing Plasmonic Silver Nanoplates","authors":"P. O. Malakhovsky,&nbsp;A. A. Ramanenka,&nbsp;M. V. Artemyev","doi":"10.1007/s10812-024-01814-9","DOIUrl":"10.1007/s10812-024-01814-9","url":null,"abstract":"<p>A novel technique was developed for the preparation of bilayer sandwich-type structures containing monolayers or laterally-oriented silver nanoplates electrostatically deposited onto thin polymer films. The surface-enhanced Raman scattering (SERS) signal of 4-mercaptobenzoic acid in the ligand layer of the silver nanoplates was found to depend on the surface concentration of the deposited silver nanoplates in the monolayer. A two-fold enhancement was found for the surface-enhanced Raman scattering signal of the analyte located in the gaps between the silver nanoplate monolayers compared to the signal from a single silver nanoplate monolayer with identical surface concentration of the analyte molecules.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1010 - 1016"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemiluminescence Study of the Generation of Active Oxygen Species on the Surface of TiO2:MoO3 Charge-Accumulating Photocatalysts 关于在 TiO2:MoO3 电荷累积型光催化剂表面生成活性氧的化学发光研究
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01810-z
T. V. Sviridova, L. Yu. Sadovskaya, D. V. Sviridov
{"title":"Chemiluminescence Study of the Generation of Active Oxygen Species on the Surface of TiO2:MoO3 Charge-Accumulating Photocatalysts","authors":"T. V. Sviridova,&nbsp;L. Yu. Sadovskaya,&nbsp;D. V. Sviridov","doi":"10.1007/s10812-024-01810-z","DOIUrl":"10.1007/s10812-024-01810-z","url":null,"abstract":"<p>A chemiluminescence technique was used to establish that, in contrast to TiO<sub>2</sub> photocatalysts, TiO<sub>2</sub>:MoO<sub>3</sub> composite photocatalysts suppress the photogeneration of superoxide ions, while the capture of photoelectrons in the MoO<sub>3</sub> phase to give reduced Mo(V) states creates conditions for the long-term generation of hydrogen peroxide capable of acting as a biocide. The TiO<sub>2</sub>:MoO<sub>3</sub> accumulating photocatalysts were shown to be fully reusable and the cycle of photocharging followed hydrogen peroxide generation can be repeated multiple times.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"984 - 988"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydroxyapatite Modified with Silver Nanoparticles for Recording the SERS Spectra of Differently Charged Analytes 用银纳米粒子修饰羟基磷灰石以记录带不同电荷的分析物的 SERS 光谱
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01815-8
A. Yu. Panarin, P. Mojzes, E. N. Kurtaliev, O. S. Kulakovich, S. N. Terekhov
{"title":"Hydroxyapatite Modified with Silver Nanoparticles for Recording the SERS Spectra of Differently Charged Analytes","authors":"A. Yu. Panarin,&nbsp;P. Mojzes,&nbsp;E. N. Kurtaliev,&nbsp;O. S. Kulakovich,&nbsp;S. N. Terekhov","doi":"10.1007/s10812-024-01815-8","DOIUrl":"10.1007/s10812-024-01815-8","url":null,"abstract":"<p>The surface of hydroxyapatite (HA) was functionalized with silver nanoparticles by reducing silver nitrate in the presence of glucose or hydrazine hydrochloride. Two types of (HA)Ag nanocomposite were obtained presumably possessing excess negative charge ((HA)Ag-I) or positive charge ((HA)Ag-II). Plasmonic coatings of (HA)Ag-I and (HA)Ag-II nanoparticles were formed on the surface of glass substrates using the droplet deposition method and their structural and spectral properties were studied. A comparative study of the intensity of surface-enhanced Raman scattering (SERS) spectra of cationic and anionic porphyrins CuTMpyP4 and CuTPPS4 as well as rhodamine 6G adsorbed on the surface of both types of nanocomposites was carried out. Plasmonic structures (HA)Ag-I provide the greatest enhancement of the SERS signal for the cationic porphyrin CuTMpyP4, while high spectral intensity is observed for the anionic porphyrin CuTPPS4 adsorbed on films of the (HA)Ag-II composite, which is almost forty times higher than for (HA)Ag-I. For Rh6G molecules with charge +1, the efficiency of the SERS signal amplification by (HA)Ag-II nanostructures is several times higher than by plasmonic films of (HA)Ag-I. Hence, feasibility was demonstrated for obtaining various SERS-active substrates with highly-efficient SERS enhancement for both anionic and cationic analyte molecules by changing the synthesis conditions.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1017 - 1024"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum Chemical Calculation of the Field Electron Emission Threshold from Short Boron-Nitride Nanotubes 短氮化硼纳米管场电子发射阈值的量子化学计算
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01817-6
O. B. Tomilin, E. V. Rodionova, E. A. Rodin, N. A. Poklonski, A. V. Knyazev
{"title":"Quantum Chemical Calculation of the Field Electron Emission Threshold from Short Boron-Nitride Nanotubes","authors":"O. B. Tomilin,&nbsp;E. V. Rodionova,&nbsp;E. A. Rodin,&nbsp;N. A. Poklonski,&nbsp;A. V. Knyazev","doi":"10.1007/s10812-024-01817-6","DOIUrl":"10.1007/s10812-024-01817-6","url":null,"abstract":"<p>The electronic structure of cylindrical conjugated macromolecules of boron and nitrogen atoms modeling short open nanotubes of zigzag (n,0) and armchair types (n,n) was calculated using density functional theory with the B3LYP hybrid functional in the 6–31G basis set. Their stability as a function of diameter and length was studied. It was shown that a constant electric fi eld applied along the tubes led to a compression of the energy gap in the electron energy spectrum of the nanotubes up to ≈0.2 eV. The threshold of fi eld electron emission from boron-nitride nanotubes was calculated in the framework of the emission molecular orbitals theory. It was shown that, despite conjugated systems of boron-nitride and carbon nanotubes being isoelectronic, substitution of carbon atoms in the nanotube framework of nitrogen and boron atoms led to a decrease in the threshold fi eld strength of the fi eld emission. It was found that the diameter of boron-nitride nanotubes had virtually no eff ect on the emission molecular orbital.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"1032 - 1041"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Highly Sensitive Techniques of Atomic and Molecular Spectroscopy and Their Application for Cultural Heritage Studies 开发高灵敏度原子和分子光谱技术及其在文化遗产研究中的应用
IF 0.8 4区 化学
Journal of Applied Spectroscopy Pub Date : 2024-11-15 DOI: 10.1007/s10812-024-01808-7
E. V. Shabunya-Klyachkovskaya
{"title":"Development of Highly Sensitive Techniques of Atomic and Molecular Spectroscopy and Their Application for Cultural Heritage Studies","authors":"E. V. Shabunya-Klyachkovskaya","doi":"10.1007/s10812-024-01808-7","DOIUrl":"10.1007/s10812-024-01808-7","url":null,"abstract":"<p>Techniques developed at the Institute of Physics of the National Academy of Sciences of Belarus for increasing the sensitivity of atomic and molecular spectroscopy in studies of microsamples taken from paintings (more than 200 artworks) are reviewed. A microscopic sample of a paint layer from the painting \"The Birth of Venus\" studied using laser-induced breakdown spectroscopy, Fourier transform infrared spectroscopy, and surface enhanced Raman scattering is presented as an example of the multi-analytical approach. The results of the study allow one to conclude that the work was created in the glue tempera technique. Chrome orange, lithopone, and iron oxide pigments (like red or yellow ochers, for example) were identified. This determined that the artwork could have been created no earlier than the last quarter of the 19th century.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 5","pages":"969 - 977"},"PeriodicalIF":0.8,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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