Abdullah H. Alluhayb, Ahmed H. Alanazi, Alaa M. Younis, Refat El-Sayed, Khaled F. Debbabi, Alaa S. Amin
{"title":"Designing an optical sensor with exceptional sensitivity and specificity for the detection of ultra-trace amounts of boron","authors":"Abdullah H. Alluhayb, Ahmed H. Alanazi, Alaa M. Younis, Refat El-Sayed, Khaled F. Debbabi, Alaa S. Amin","doi":"10.1007/s44211-025-00737-5","DOIUrl":"10.1007/s44211-025-00737-5","url":null,"abstract":"<div><p>A specialized optical chemical sensor for boron detection was designed using a polymer inclusion membrane (PIM). This unique sensor relies on an encapsulation method to create its optical membrane. The components involved in this sensor include azomethine H (AMH) as the reactive agent, polyvinyl chloride as the foundational polymer, and dinonylnaphthalene sulphonic acid (DNNS) as the extraction agent within the PIM structure. Various parameters, such as membrane thickness, concentration of AMH and DNNS, plasticizer proportions, stirring dynamics, and the pH of the solution under study, significantly affected the sensor’s performance. Within a detection range spanning 4.0–116 ng mL<sup>−1</sup> of boron, the sensor demonstrated a strong linear relationship with detection and quantification thresholds of 1.25 and 3.94 ng mL<sup>−1</sup>, respectively. The peak absorption wavelength (<i>λ</i><sub>max</sub>) for this PIM-based sensor was identified at 424 nm. Moreover, the sensor displayed a reproducibility (RSD) of 1.65% and a repeatability RSD of 1.43%, coupled with a swift response time of approximately 3.0 min. The membrane selectivity was tested against boron in acidic environments. This proposed sensor effectively detected boron in diverse samples such as water, vegetation, soil, and ceramic samples, with findings corroborated by an AAS technique.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic representation for the preparation, and complexation of the formed sensor and B–AMH–DNNS complex</p></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"41 4","pages":"473 - 486"},"PeriodicalIF":1.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630058","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}
{"title":"Solvent properties of ionic liquids on complex formation of Ni(II) ion with molecular liquids","authors":"Toshiyuki Takamuku","doi":"10.1007/s44211-025-00741-9","DOIUrl":"10.1007/s44211-025-00741-9","url":null,"abstract":"<div><p>Room-temperature ionic liquids (ILs) attract much attention as green solvents because of their negligible volatility and non-flammability. In analytical chemistry, the application of ILs to chemical separation and solvent extraction has been investigated. However, there have been a smaller number of reports on the mechanisms of chemical equilibria in the solvents of ILs at a molecular level. In this review, the series of our investigations on the complex formation of Ni<sup>2+</sup> ion with molecular liquids (MLs) in imidazolium-based ILs, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([C<sub>2</sub>mim][TFSA]) and 1-methyl-3-octylimidazolium bis(trifluoromethylsulfonyl)amide ([C<sub>8</sub>mim][TFSA]) was summarized. The MLs involved methanol (MeOH), ethanol (EtOH), acetonitrile (AN), and dimethyl sulfoxide (DMSO). In [C<sub>2</sub>mim][TFSA], the Ni<sup>2+</sup>-ML complexes are stabler in the sequence of DMSO >> AN > EtOH ≈ MeOH complexes, which almost depends on the electron donicities of MLs. In contrast, in [C<sub>8</sub>mim][TFSA], the sequence changes to AN > DMSO > EtOH > MeOH complexes, despite of the lowest electron donicity of AN. Thus, only the electron donicities of MLs do not decide the stability of the complexes. The reasons for the stabilities of the Ni<sup>2+</sup>-ML complexes were interpreted in terms of the microscopic interactions between ML and the ILs’ cation observed by the infrared (IR) and <sup>1</sup>H and <sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopic techniques. Furthermore, to clarify the effects of ML cluster formation on the complex formation mechanisms, the heterogeneous mixing between IL and ML were quantitatively evaluated by small-angle neutron scattering (SANS) at the mesoscopic scale.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"41 5","pages":"609 - 622"},"PeriodicalIF":1.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630062","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}
{"title":"Quantification techniques of soil organic carbon: an appraisal.","authors":"Avinash Kanagaraj, Sathiya Bama Kaliappan, Thenmozhi Shanmugam, Bharani Alagirisamy, Kumaraperumal Ramalingam","doi":"10.1007/s44211-025-00746-4","DOIUrl":"https://doi.org/10.1007/s44211-025-00746-4","url":null,"abstract":"<p><p>This review provides an overview of the analytical methods utilized across laboratory, field, landscape, and regional scales for assessing soil organic carbon (SOC) in agricultural soils. The significance of soil depth in SOC estimation underscores the importance of selecting appropriate sampling designs, soil depths, analytical methods, and baseline selection methods for accurate soil carbon stock estimation. Traditional methods such as wet digestion and dry combustion (DC) remain prevalent in routine laboratory analysis, with DC considered the standard reference method, surpassing wet digestion in accuracy and reliability. Recent advancements in spectroscopic techniques enable SOC measurement both in laboratory settings and in situ, even at greater depths. Aerial spectroscopy, which employs multispectral and hyperspectral sensors, unmanned aerial vehicles (UAVs), or satellites, facilitates surface SOC measurement. While the current precision levels of these techniques may be limited, forthcoming hyperspectral sensors with enhanced signal‒to‒noise ratios are expected to significantly increase the prediction accuracy. Furthermore, at the global level, satellite remote sensing techniques have considerable potential for SOC estimation. Regardless of whether traditional or novel approaches are utilized, the selection of SOC determination depends on available resources and research requirements, each of which plays a distinct role in soil carbon and climate research. This paper provides an overview of various scale-dependent techniques for measuring SOC in agricultural soil, along with its potential limitations.</p>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603099","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}
{"title":"Multifunctional metal complex systems emerging from analytical chemistry for theranostic applications","authors":"Nobuhiko Iki","doi":"10.1007/s44211-025-00740-w","DOIUrl":"10.1007/s44211-025-00740-w","url":null,"abstract":"<div><p>Metal complexes have long played a pivotal role in analytical chemistry due to their ability to detect and separate ions through the synergistic interaction between metal centers and ligands. This functionality can be further enhanced by integrating metal complexes non-covalently with various media, such as materials or separation platforms. Over the past four decades, the author has explored metal complex systems, including thiacalixarene–lanthanide(III) complexes, diradical platinum(II) complexes, and MOF-74, which exhibit a broad spectrum of functionalities spanning analytical applications to theranostics. Examples discussed in this review include luminescent supramolecular sensors for soft-metal ions, upconverting complexes, near-infrared light-absorbing probes for pH and hydrophobic cavities, magnetic resonance imaging (MRI), photoacoustic imaging, photothermal therapy, and neutron capture therapy. The multifunctionality of these systems arises from their cooperative, synergistic, and supramolecular nature, underpinned by non-covalent interactions among their components. Analytical chemistry has been, and will continue to be, a cornerstone for the discovery and development of such multifunctional metal complex systems.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"41 5","pages":"623 - 637"},"PeriodicalIF":1.8,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603129","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}
{"title":"Ratiometric electrochemical aptasensor based on functionalized graphene nanocomposites for detection of CA19-9.","authors":"Feifei Lin, Xiaosha Li, Jian Zhang, Hailin Zhang, Zemiao Zhang, Lijie Hou, Bingjun Shen, Lihong Jin","doi":"10.1007/s44211-025-00743-7","DOIUrl":"https://doi.org/10.1007/s44211-025-00743-7","url":null,"abstract":"<p><p>A ratiometric electrochemical aptasensor was constructed based on rGO-cMWCNTs/AuNPs functionalized graphene nanocomposites for the detection of CA19-9 in serum samples. First, rGO-cMWCNTs/AuNPs nanocomposites were modified on the surface of glassy carbon electrodes. Second, the aptamer complementary chain labeled with anthraquinone-2-carboxylic acid (cDNA-AQ) was covalently linked by Au-S. Finally, the hybrid chain was formed with ferrocene (Fc)-labeled Apt-Fc by base pairing, and a sensing interface with specific target recognition and electrochemical signal amplification was constructed. In this study, the ratio of response signal to internal reference signal (I<sub>Fc</sub>/I<sub>AQ</sub>) was used as the target molecular response signal to achieve the quantitative detection of CA19-9. The ratiometric electrochemical biosensor based on aptamer molecular recognition has good selectivity, reproducibility and stability. Under the optimal reaction conditions, the logarithm of CA19-9 concentration had a good linear relationship with I<sub>Fc</sub>/I<sub>AQ</sub>, the linear range was 1.0-1.0 × 10<sup>6</sup> mU/mL, the detection limit was 0.65 mU/mL, and the recovery rate in CA19-9 serum was 94.12-97.83%. The results show that the sensor has potential practical application prospects, and provides a simple and feasible strategy for the rapid and accurate detection of other tumor markers.</p>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565504","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}
Taisuke Shimada, Takao Yasui, Hiroshi Yukawa, Yoshinobu Baba
{"title":"Nanobiodevices and quantum life science for future healthcare","authors":"Taisuke Shimada, Takao Yasui, Hiroshi Yukawa, Yoshinobu Baba","doi":"10.1007/s44211-025-00742-8","DOIUrl":"10.1007/s44211-025-00742-8","url":null,"abstract":"<div><p>Maintaining healthy life in old age (healthy aging) is an important social challenge. An effective approach to realizing healthy aging involves providing personalized healthcare through disease prevention, early diagnostics, and optimal treatments. Nanobiodevices and quantum life sciences have tremendous potential to revolutionize current techniques for disease prevention, diagnostics, and treatment via the efficient analyses of biomolecules, bioparticles, pathogens, and cells. In this review, we outline our research on nanobiodevices and quantum life sciences for future healthcare, including cancer diagnostics, pathogen detection, in vivo imaging-guided therapy, and intracellular sensing for stem cell quality checks.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"41 5","pages":"601 - 607"},"PeriodicalIF":1.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539969","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}
{"title":"Stratified quantification of targets in skin by three-dimensional Raman spectroscopic imaging.","authors":"Yunchi Hu, Tong Ha, Yan Kang, Yiping Du","doi":"10.1007/s44211-025-00738-4","DOIUrl":"https://doi.org/10.1007/s44211-025-00738-4","url":null,"abstract":"<p><p>This study aims to utilize three-dimensional (3D) Raman imaging technology for the stratified quantification of active ingredients (AIs) within the skin, which involves determining their contents in the stratum corneum (SC) and the active epidermal (EP) layer. Multiple linear regression combined with a least squares algorithm was used to analyze the relative concentration coefficients of targets in the skin. However, an issue of signal attenuation with increasing depth was encountered during the 3D Raman data acquisition process. A calibration process was performed based on establishing the relationships among depth in skin, the relative concentration coefficients of a two-dimensional (2D) Raman imaging and the concentration value from high-performance liquid chromatography (HPLC) technology. Nicotinamide was selected as the target in this study, and a 3D Raman signal attenuation correction equation specific to nicotinamide was developed. A 3D stratified imaging of nicotinamide in skin was achieved by this method. This method offers a visual analysis of AIs in the SC and EP by in vivo Raman technology.</p>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536543","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}
Yalan Liu, Yaru Peng, Qiping Wu, Zeneng Cheng, Feifan Xie, Sanwang Li
{"title":"Quantitative analysis of related substances in acetaminophen tablets using pre-column derivatization coupled with HPLC-ICP-MS.","authors":"Yalan Liu, Yaru Peng, Qiping Wu, Zeneng Cheng, Feifan Xie, Sanwang Li","doi":"10.1007/s44211-025-00739-3","DOIUrl":"https://doi.org/10.1007/s44211-025-00739-3","url":null,"abstract":"<p><p>High-performance liquid chromatography coupled with inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) is a promising structure-independent technique for accurate quantification of drug-related substances in pharmaceuticals. In this study, we aimed to develop a sensitive HPLC-ICP-MS method, combined with pre-column derivatization, to quantify related substances in acetaminophen tablets. Through this method, we enhanced the sensitivity and accuracy of detecting substances that do not directly respond to ICP-MS. The key advancements include the systematic optimization of derivatization conditions and the establishment of a calibration curve with correlation coefficients greater than 0.999. The method achieved impressive limits of quantification: 0.089 µM for o-acetaminophenol, 0.097 µM for p-nitrophenol, and 0.161 µM for p-aminophenol. It demonstrated suitable accuracy and precision for the following substances: o-acetaminophenol with accuracy between 95.7-104.4% and precision ≤ 4.9%, p-nitrophenol with accuracy between 97.6-101.8% and precision ≤ 2.7%, and p-aminophenol with accuracy between 95.6-102.5% and precision ≤ 3.2%. Comparative analysis with standard HPLC-UV method revealed less than 20% difference in quantification, underscoring the effectiveness of this combined technique. Our study demonstrated the feasibility of combining chemical derivatization with HPLC-ICP-MS as a robust tool for the accurate quantification of drug-related substances, particularly those lacking elements detectable by ICP-MS alone.</p>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536609","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}
{"title":"The latest developments of near-infrared fluorescent probes from NIR-I to NIR-II for bioimaging.","authors":"Yuzuka Kuronuma, Ryuji Watanabe, Yuki Hiruta","doi":"10.1007/s44211-025-00735-7","DOIUrl":"https://doi.org/10.1007/s44211-025-00735-7","url":null,"abstract":"<p><p>Near-infrared I (NIR-I: 650-950 nm) fluorescence imaging is a powerful tool for deep-tissue biological imaging, addressing the limitations of photon penetration depth in the visible-light region. Over the past decade, NIR imaging has extended to the near-infrared II (NIR-II: 1000-1700 nm) region, offering high-resolution and low background imaging by suppressing light scattering, and autofluorescence of tissues. Near-infrared fluorescent probes from NIR-I to NIR-II, with diverse functionalities, are increasingly utilized across biological fields to meet various detection needs and to explore physiological events in real time and spatial dimensions. This review discusses recent advancements in small-molecule NIR fluorescent dyes and probes, particularly those based on cyanine and rhodamine scaffolds, highlighting examples of their applications in bioimaging.</p>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143522492","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}
{"title":"Solid-phase-extraction device for extracting volatile organic compounds from gaseous samples","authors":"Ikuo Ueta, Koki Nakagami, Yoshihiro Saito","doi":"10.1007/s44211-025-00729-5","DOIUrl":"10.1007/s44211-025-00729-5","url":null,"abstract":"<div><p>Solid-phase extraction (SPE) is a sample preparation technique typically used for purifying target analytes in liquid samples prior to instrumental analysis, such as chromatographic analysis. Typical SPE device consists of packing particulate adsorbent into a glass or plastic cartridge. In the sample preparation process, the target analytes are extracted onto the adsorbent by loading the liquid sample into the SPE cartridge and separated from other contaminants. Then, the extracted compounds are eluted by the organic solvent. This article summarizes the SPE devices designed for extracting volatile organic compounds in gaseous samples. In these SPE devices, the extracted analytes are eluted by simply passing the desorption solvent. The devices can be reused after drying the adsorbent.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"41 5","pages":"505 - 510"},"PeriodicalIF":1.8,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143497945","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}