Journal of Applied Spectroscopy最新文献

Diffraction and Mixing of Light Waves on a Reflection Holographic Grating in a Cubic Photorefractive Crystal

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-20 DOI: 10.1007/s10812-025-01853-w

V. N. Naunyka

引用次数: 0

Fluorescence Characteristics of Hoechst 33258 Complexes with Single-Stranded and Double-Stranded Polyribonucleotides in Solution at Various Solution Ionic Strengths

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-16 DOI: 10.1007/s10812-025-01850-z

A. P. Antonyan, P. O. Vardevanyan, M. S. Mikaelyan, G. H. Poghosyan, G. H. Kocharyan, M. A. Parsadanyan

引用次数: 0

Structural and Photoluminescence Properties of Co2+-Doped ZnCdO Nanopowders

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01858-5

D. V. Satish, R. V. S. S. N. Ravikumar, M. C. Rao

{"title":"Structural and Photoluminescence Properties of Co2+-Doped ZnCdO Nanopowders","authors":"D. V. Satish, R. V. S. S. N. Ravikumar, M. C. Rao","doi":"10.1007/s10812-025-01858-5","DOIUrl":"10.1007/s10812-025-01858-5","url":null,"abstract":"A simple solution technique was used for the synthesis of Co2+-doped ZnCdO nanopowder. A number of investigation methods have been done on the synthesized powder to study the structural, morphological, and photoluminescence properties. X-ray diffraction (XRD) studies revealed that ZnO is in a hexagonal phase and CdO is in a cubic phase when the samples were calcined at 650°C for 2 h by raising the temperature at the speed of 15°/min. Irregular-shape grains were observed from the scanning electron microscopy (SEM) images. Energy dispersive X-ray analysis (EDAX) indicated the existence of doped Co species and constituent metal ions. The bands at 417 and 460 cm–1 confirmed the presence of ZnO and CdO molecules by Fourier transform infrared spectroscopy studies. From optical absorption studies, Dq, B, and C (crystal field parameter and inter-electronic repulsion parameters) were evaluated and found to be 980, 940, and 3800 cm–1, thus confirming the doped Co2+ ions are in octahedral symmetry. Photoluminescence studies showed the emission peaks in the blue region at an excitation wavelength of 360 nm. CIE chromaticity coordinates were estimated at x = 0.1577, y = 0.0771.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 6","pages":"1338 - 1342"},"PeriodicalIF":0.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108704","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

Synthesis, Characterization, and Optical Properties of YAG:Ce,Pr Phosphor and Influence of Si Doping

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01856-7

Manisha Upasani, Bhavana Butey

引用次数: 0

Anti-Reflection Coating Based on Mullite for Silicon Solar Cells

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01855-8

S. X. Suleymanov, V. F. Gremenok, A. V. Stanchik, V. V. Khoroshko, V. G. Dyskin, M. U. Djanklich, N. A. Kulagina, U. B. Hamdamov

引用次数: 0

Spectral Characterization of Refined Oils and Their Binary Mixtures at Unconventional Temperatures

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01862-9

Chenxi Li, Hanbing Qi, Xiaoxue Zhang, Hang Zhu, Qiushi Wang

{"title":"Spectral Characterization of Refined Oils and Their Binary Mixtures at Unconventional Temperatures","authors":"Chenxi Li, Hanbing Qi, Xiaoxue Zhang, Hang Zhu, Qiushi Wang","doi":"10.1007/s10812-025-01862-9","DOIUrl":"10.1007/s10812-025-01862-9","url":null,"abstract":"The aim of this study is to address the problems of oil mixing during the sequential transportation of refined oil and the influence of temperature on the quality detection of refined oil. To better detect the quality of refined oil, UV-Visible transmission spectroscopic experiments of 92# gasoline, diesel oil, and their mixtures at different temperatures are performed. Then, the influence of temperature on the transmission spectrum is analyzed, and the transmittance–temperature compensation equations are obtained. Based on the double-thickness inversion model, the optical constants of the mixed refined oil at UV-Visible wavelengths are obtained, and the effect of temperature on the optical constants is analyzed. For a specified optical range, the transmittance of the mixed refined oil gradually increases with increasing temperature. The temperature has a certain effect on the optical constant of the refined oil; moreover, the relationships between the transmittance of the refined oil and the change in temperature are obtained at 364, 378, and 394 nm; these wavelengths are selected based on a combination of characteristic spectra calculated by a genetic algorithm. The obtained relationship can effectively remove the influence of temperature changes on the transmittance spectra of refined oil to improve the accuracy of detection.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 6","pages":"1369 - 1377"},"PeriodicalIF":0.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108721","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

Separation of Line Widths of HOD Peaks of Healthy and Diseased Blood and Urine Groups Using 400 MHz NMR

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01861-w

Mehmet Nafi Sakar, Utku Nezih Yilmaz, Mehmet Zafer Köylü

{"title":"Separation of Line Widths of HOD Peaks of Healthy and Diseased Blood and Urine Groups Using 400 MHz NMR","authors":"Mehmet Nafi Sakar, Utku Nezih Yilmaz, Mehmet Zafer Köylü","doi":"10.1007/s10812-025-01861-w","DOIUrl":"10.1007/s10812-025-01861-w","url":null,"abstract":"Line width studies of high field nuclear magnetic resonance (NMR) peaks have been seen more frequently in the recent literature. This study aims to compare the NMR line widths of HOD peaks of healthy and diseased blood, and densely bloody cysts taken from the jaw. Comparisons of HOD peak line widths in healthy and diseased urine were also made. For this purpose, the blood, serum, and urine of 29 cancer patients, 17 diabetic patients, 28 healthy volunteers, and 20 intensely bloody samples from jaw cysts were collected. Mixtures were prepared by adding the 0.02-mL sample to 0.98 mL D2O. Single-pulse proton NMR measurements were performed at 400 MHz, and line widths were obtained from the half-height of the blood HOD peak. Statistical evaluations show that the line width of cancerous blood is different from normal blood (P = 0.032), while the line width of diabetic blood is not different (p = 0.072), whereas other groups and bloody jaw cysts are completely different (p < 0.05). Similar results were found for urine groups. Line widths show a moderate correlation with each of the albumin and total protein groups (R around 0,56). Present data suggest that a comparison of healthy and diseased body fluids can be made by line width measurements of the HOD peak in the high NMR field. Data also suggest that the relaxivities of albumin (Ser-Alb), total protein (Ser-TP) are potential diagnostic indicators for cancerous blood.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 6","pages":"1362 - 1368"},"PeriodicalIF":0.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108722","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

Sum-Frequency Generation in the Surface Layer of a Dielectric Spheroidal Particle: Analytical Solution

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01854-9

V. N. Kapshai, A. A. Shamyna

引用次数: 0

Development and Validation of Ultraviolet Spectroscopic Method for Estimation of Voriconazole in Bulk and Pharmaceutical Formulation

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01867-4

Pranita Sunil Kanojiya, Rita Naresh Wadetwar

{"title":"Development and Validation of Ultraviolet Spectroscopic Method for Estimation of Voriconazole in Bulk and Pharmaceutical Formulation","authors":"Pranita Sunil Kanojiya, Rita Naresh Wadetwar","doi":"10.1007/s10812-025-01867-4","DOIUrl":"10.1007/s10812-025-01867-4","url":null,"abstract":"The present work aimed to develop a simple analytical method and validate the same for the estimation of Voriconazole using ultraviolet spectrophotometry. Methanol and artificial vaginal fluid (AVF) pH 4.1 were chosen as solvents for the development of the analytical method and the validation of the method was done for the different parameters. Voriconazole showed higher absorbance at 256 nm both in methanol and AVF pH 4.1. Linearity, precision, and accuracy as the analytical parameters were studied as per the International Conference of Harmonization (ICH) guidelines. The concentration range of 10–50 μg/mL in methanol and AVF pH 4.1 showed a linear response and followed Beer's law with coefficient correlation values of 0.998 for methanol and 0.999 for AVF pH 4.1. The results for the accuracy and the repeatability parameter presented values that lie within the range of 98–102%, indicating a higher confidence interval. Regarding the method's sensitivity, the LOD for the drug in methanol and AVF pH 4.1 was found to be 2.55 and 2.00 μg/mL, respectively. The LOQ for the drug in methanol was 7.75 μg/mL and in AVF pH 4.1 was 6.08 μg/mL. The proposed, developed and validated method was simple, sturdy, cost-effective, and time-saving. The method could be further applied to calculate the entrapment efficiency of the drug-loaded nanostructured lipid carrier and tablet drug content.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 6","pages":"1411 - 1417"},"PeriodicalIF":0.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108725","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

SERS Substrates for Ultrasensitive Detection of Malachite Green Using Silver Nanostars

IF 0.8 4区化学

Journal of Applied Spectroscopy Pub Date : 2025-01-14 DOI: 10.1007/s10812-025-01859-4

H. M. Saleh, T. El-Brolossy, T. Sharaf, H. Talaat

{"title":"SERS Substrates for Ultrasensitive Detection of Malachite Green Using Silver Nanostars","authors":"H. M. Saleh, T. El-Brolossy, T. Sharaf, H. Talaat","doi":"10.1007/s10812-025-01859-4","DOIUrl":"10.1007/s10812-025-01859-4","url":null,"abstract":"Food additives, crucial for enhancing food quality, have raised concerns regarding their potential carcinogenicity, particularly in substances like malachite green (MG), previously removed from the United States Food and Drug Administration approved list due to identified cancer risks. This investigation delves into the nuanced domain of trace detection employing surface-enhanced Raman spectroscopy (SERS), leveraging the localized plasmon of silver nanoparticle substrates. The research involves a comprehensive comparison between solid- and liquid-based SERS substrates. It utilizes diverse morphologies of silver nanostars (AgNSs) for sensitively detecting MG, substances of considerable interest in the food industry despite their acknowledged carcinogenic properties. A comprehensive characterization of diverse AgNS shapes, including TEM analysis and UV-Vis spectra, reveals distinct plasmon resonance peaks influenced by morphology and the surrounding medium. Finite-difference time-domain (FDTD) simulations underscore the influence of core size and arm number on local electric fields, generating robust hot spots along the edges. The surrounding medium also significantly influenced electric field intensity. SERS examinations reveal liquid-based substrates outperforming their solid counterparts, achieving a remarkable limit of detection (LOD) of 37 aM for MG. These findings were extensively examined in light of their consistency with FDTD simulations and the noticeable variations in enhancement factors observed among different configurations of solid substrates. Simultaneously, the study explores the high reproducibility of liquid-based substrates and endeavors to improve the poor reproducibility of the Raman signal by modifying the surface of solid-based substrates.","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 6","pages":"1343 - 1352"},"PeriodicalIF":0.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143108706","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