Analytical Sciences最新文献

{"title":"Size-dependent As(V) adsorption of reduced graphene oxide/magnetite nanocomposites","authors":"Duc Dung Mai,&nbsp;Thanh Loan To,&nbsp;Thi Hang Bui,&nbsp;Thi Kim Lien Nguyen,&nbsp;Thi Kim Phuong Luong,&nbsp;Thi Lan Nguyen","doi":"10.1007/s44211-024-00657-w","DOIUrl":"10.1007/s44211-024-00657-w","url":null,"abstract":"<div><p>Arsenic (As(V)) contamination in aqueous resources poses a significant environmental, and public health risk due to its high toxicity. To address this challenge, we synthesized and characterized novel reduced graphene oxide/magnetite (rGO/Fe₃O₄) nanocomposites, which are efficient adsorbents for removing As(V). Using a co-precipitation method, we obtained three distinct sizes of rGO/Fe₃O₄ nanocomposites by controlling the salt concentration (Fe²⁺: Fe³⁺) ratios. Analysis of the adsorption ability of the samples shows that the adsorption efficiency can reach up to 98.10% within 90 min, and the adsorption capacity value reaches 20.55 mg/g. Furthermore, these test data are ably consistent with both the pseudo-second-order model and the Langmuir model, based on which the adsorption mechanism has been proposed. These results show that the rGO/Fe₃O₄ nanocomposites that we synthesized are a potential adsorbent for the removal of heavy metals from water.</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":"40 12","pages":"2213 - 2224"},"PeriodicalIF":1.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142144980","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":"Fabrication of sulphur-doped graphitic carbon nitride anchored Ag@AgCl electrocatalyst for the sensing of chloramphenicol","authors":"Suparna Kallakkattil,&nbsp;Yarradoddappa Venkataramanappa","doi":"10.1007/s44211-024-00658-9","DOIUrl":"10.1007/s44211-024-00658-9","url":null,"abstract":"<div><p>We have developed sulphur-doped graphitic carbon nitride (S-GCN) anchored Ag@AgCl electrocatalyst through a green technique for the first time for the electrochemical sensing of chloramphenicol. The Ag@AgCl nanoparticles were synthesized using Rhoeo discolor (<i>Tradescantia spathacea</i>) plant extract without the use of any external halide source. As per our knowledge, this is the first time Rhoeo discolor (<i>Tradescantia spathacea</i>) plant extract was used for the synthesis of Ag@AgCl nanoparticles without the use of any external halide source. Using sonochemical technique, the green synthesized nanoparticle was combined with S-GCN to form Ag@AgCl/S-GCN electrocatalyst. The synthesized materials were characterized by suitable techniques such as UV–visible spectroscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and elemental analysis. The electrocatalytic reduction mechanism of chloramphenicol was studied with the help of electrochemical impedance spectroscopy, cyclic voltammetry, and linear sweep voltammetry. The Ag@AgCl/S-GCN modified electrode has shown a linear response in the range of 1 to 650 μM, with a LOD of 420 <span>(text{nM})</span>. Further, the practical application of the developed sensor was analyzed using real samples such as milk and honey and satisfactory recovery rates were observed.</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":"40 12","pages":"2225 - 2240"},"PeriodicalIF":1.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142144979","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":"A fluorescent probe for monitoring carboxylesterases in pulmonary cells under permissive hypercapnia condition","authors":"Xiao-Ping Wu,&nbsp;Na Yang,&nbsp;Qing-Qing Liu,&nbsp;Zhong-Quan Zhu","doi":"10.1007/s44211-024-00659-8","DOIUrl":"10.1007/s44211-024-00659-8","url":null,"abstract":"<div><p>Herein, by combining the benzofuranone-derived fluorophore and the carbamate recognition group, a fluorescent probe named BFO-CarE was developed for monitoring the carboxylesterase (CarE) level in pulmonary cells under the permissive hypercapnia condition. It showed a notable fluorescence response towards CarE at 570 nm under the excitation of 510 nm. The in-solution tests revealed the advantages of BFO-CarE including high sensitivity, high specificity, relatively rapid response, and high steadiness. It was also low-toxic upon the pulmonary cell lines. During the intracellular imaging in pulmonary cells, BFO-CarE achieved the monitoring of the CarE level in both inhibition and activation status. In particular, BFO-CarE realized the visualization of the affection of the permissive hypercapnia condition on the CarE level, which indicated the hypoxia tolerance of CarE. This work was informative for investigating the impact of hypoxia in pulmonary cells, and the corresponding anaesthesia-related approaches.</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":"40 12","pages":"2241 - 2249"},"PeriodicalIF":1.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142144978","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":"Separation and determination of tellurium(IV) and tellurium(VI) using reversed-phase high-performance liquid chromatography-inductively coupled plasma mass spectrometry","authors":"Tomohiro Narukawa,&nbsp;Ayaka Wada,&nbsp;Chikako Cheong,&nbsp;Koichi Chiba","doi":"10.1007/s44211-024-00663-y","DOIUrl":"10.1007/s44211-024-00663-y","url":null,"abstract":"<div><p>A new method for speciation analysis of tellurium(IV) and Te(VI) using high-performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS) has been developed. Tellurium(IV) and Te(VI) were completely separated using a reversed-phase column with an L-cysteine eluent under an isocratic elution condition. The detection limits (3σ) of Te(IV) and Te(VI) monitored by HPLC-ICP-MS at<i> m</i>/<i>z</i> 125 were 1.4 and 0.5 ng g⁻¹, respectively. The proposed determination method was precisely applied to assessing total concentrations and chemical species of Te in several standard solutions. The recovery rates of Te(IV) and Te(VI) were almost 100% from the results of the addition-recovery examinations, even when a high matrix sample such as seawater was measured. The method was applied to seawater samples and electronic products, and was proved quite effective for environmental risk assessment.</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":"40 12","pages":"2279 - 2286"},"PeriodicalIF":1.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131658","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":"Development of molecular sensors based on fluorescent proteins for polarized macrophages identification","authors":"Udari Kalpana Bandaranayake,&nbsp;Hiroki Sato,&nbsp;Miho Suzuki","doi":"10.1007/s44211-024-00649-w","DOIUrl":"10.1007/s44211-024-00649-w","url":null,"abstract":"<div><p>Macrophages are a type of white blood cells that play key roles in innate immune responses as a part of cellular immunity for host defence and tissue homeostasis. To perform diverse functions, macrophages show high plasticity by transforming to polarized states. They are mainly identified as unpolarized, pro-inflammatory and antiinflammatory states and termed as M0, M1 and M2 macrophages respectively. Discriminating polarized states is important due to strict implication with inflammatory conditions resulting in many diseases as chronic inflammation, neurodegeneration, and cancer etc. Many polarization protein markers have been identified and applied to investigate expression profiles through PCR and other techniques with antibodies. However, they are time and cost consuming and sometimes show insufficient performances. We focused on the mannose receptor (CD206) as representative marker of M2 macrophage recognising terminal mannose. We developed dose dependent mannosylated fluorescent proteins (FPs) by conjugations with mannose derivative for around 20 modifiable sites on FPs surfaces. Maximum modifications did not spoil various features of FPs. We found further sensitive and specific discriminations among M2, M1 and M0 macrophages after treating polarized macrophages with adequately conditioned FPs compared to already established approaches using anti CD206 antibody through flow cytometric analysis. These results might be derived from direct ligand utilizations and increased avidity due to multivalent bindings with abundantly modified multimeric FPs. Our strategy is simple but addresses disadvantages of preceding methods. Moreover, this strategy is applicable to detect other cell surface receptors as FPs can be modified with ligands or recognizable aptamer like molecules.</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":"40 12","pages":"2133 - 2145"},"PeriodicalIF":1.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131657","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":"Evaluation of reflective fiber-optic surface plasmon resonance sensor for monitoring scale deposition","authors":"Takuya Okazaki,&nbsp;Miku Yokose,&nbsp;Yudai Ishii,&nbsp;Akira Ueda,&nbsp;Hideki Kuramitz,&nbsp;Tomoaki Watanabe","doi":"10.1007/s44211-024-00653-0","DOIUrl":"10.1007/s44211-024-00653-0","url":null,"abstract":"<div><p>A reflective surface plasmon resonance (SPR) sensor was evaluated for real-time monitoring of scale deposition. The sensor consists of an optical fiber, only 5 mm at the gold-coated tip of the sensing area. The effect of silica growth on the sensor response was evaluated using a Na₂SiO₃ solution. The sensitivity of the sensor to silica was 1.6 ± 0.3 nm per one immersion in the solution of 1000 mg/L (as SiO₂) at 85 °C and subsequnt air drying, as indicated by the SPR peak shift. The amount of silica deposited on the gold surface was measured by the quartz crystal microbalance method, and the SPR sensitivity of 0.089 nm/ng to silica mass was obtained. The detection limit (3σ) of the SPR sensor was 17 ng, corresponding to a thickness of 2.5 nm for amorphous silica. The SPR sensor was tested in geothermal brine sampled at the Sumikawa Geothermal Power Plant, where a clear SPR shift was observed, suggesting the effectiveness of the SPR sensor for scale monitoring.</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":"40 12","pages":"2167 - 2173"},"PeriodicalIF":1.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142124528","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":"Effect of the alkyl chain length of α,ω-dichloroalkane on the Gibbs energy of transfer for functional groups","authors":"Kohei Uematsu,&nbsp;Erina Tanaka,&nbsp;Takanari Tanaka,&nbsp;Hajime Katano","doi":"10.1007/s44211-024-00656-x","DOIUrl":"10.1007/s44211-024-00656-x","url":null,"abstract":"<div><p>Ion-transfer reactions of alkyl and perfluoroalkyl carboxylate ions (CH₃(CH₂)_<i>n</i>–2COO^– with <i>n</i> = 8–12 and CF₃(CF₂)_<i>n</i>–2COO^– with <i>n</i> = 3–9) were investigated at the polarized Cl-(CH₂)_<i>m</i>-Cl with <i>m</i> = 2, 4, 6, and 8 (O) | water (W) interface to evaluate the effects of <i>n</i> and <i>m</i> on the solvation energy of the ions, as well as on their methylene and terminal groups. These ions exhibited reversible or quasi-reversible voltammetric waves due to their transfer across the O | W interfaces, enabling the determination of formal potentials and formal Gibbs transfer energies from O to W, <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span>. The <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> values for CH₃(CH₂)_n–2COO^– and CF₃(CF₂)_<i>n</i>–2COO^– increased linearly with <i>n</i>, allowing the estimation of <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> for methylene and difluoromethylene groups, <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (CH₂) and <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (CF₂), and for their terminal groups, <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (COO^–  + CH₃) and <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (COO^– + CF₃). Whereas the <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (CH₂) and <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (CF₂) hardly changed with the variation in <i>m</i>, the <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (COO^– + CH₃) and <span>(Delta G_{{{text{tr,O}} to {text{W}}}}^{0^{prime}})</span> (COO^– + CF₃) decreased noticeably. These results suggest that the solvation energy for ions in Cl-(CH₂)_<i>m</i>-Cl increases with <i>m</i>, regardless of hydrophilic or lipophilic nature of the ions. Based on these findings, the advantage of using Cl-(CH₂)_<i>m</i>-Cl with a large <i>m</i> as a non-aqueous solvent for ion-transfer voltammetry was discussed.</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":"40 12","pages":"2191 - 2198"},"PeriodicalIF":1.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118771","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":"Room-temperature mL-to-μL quantitative liquid concentration device for cyclone flow","authors":"Hidekatsu Tazawa,&nbsp;Kazuma Mawatari","doi":"10.1007/s44211-024-00654-z","DOIUrl":"10.1007/s44211-024-00654-z","url":null,"abstract":"<div><p>Highly sensitive quantitative analysis of liquids is required in various fields. Analytical instruments and devices such as chromatography, spectroscopic analysis, DNA sequencers, immunoassay, mass spectrometry, and microfluidic devices are utilized for this purpose. Typically, the sample volume is at the milliliter scale, while the analysis volume is at the microliter scale. Consequently, most of the sample is discarded. Therefore, a universal volume interface is required to quantitatively concentrate samples from milliliter to microliter volume. This study introduces a liquid quantitative function to the cyclone concentration method using a millimeter-scale channel, which is highly suitable for controlling liquids at the microliter scale due to its high fluidic resistance against cyclone flow. This method enables the effective control of liquid concentration by cyclone flow. The optimum channel structure is investigated, and a 33-fold concentration of aqueous solutions is demonstrated. Finally, the concentration device is applied to measure molybdenum ions in a river.</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":"40 12","pages":"2175 - 2180"},"PeriodicalIF":1.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44211-024-00654-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142103626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the synchronized effect of MWCNT/X-manganate (X-Cu, Zn) nanocomposite for the sensitive and selective electrochemical detection of Hg(II) and Pb(II) in water","authors":"Xingpu Qi,&nbsp;Ping Liu,&nbsp;Fang Yao,&nbsp;Mengli Zhao,&nbsp;Xuanyu Shen,&nbsp;Zhengyun Wang","doi":"10.1007/s44211-024-00652-1","DOIUrl":"10.1007/s44211-024-00652-1","url":null,"abstract":"<div><p>The presence of heavy metal ions in the environment is a long-lasting problem that requires the simultaneous detection of Hg(II) and Pb(II) which is both vital and challenging. This present study examines a simplified and effective approach for synthesizing multi-walled carbon nanotube–copper manganese oxide (MWCNT–CuMn₂O₄) and multi-walled carbon nanotube–zinc manganese oxide (MWCNT–ZnMn₂O₄) nanocomposites for electrochemical detection of heavy metal ions. The nanocomposites MWCNT–CuMn₂O₄ and MWCNT–ZnMn₂O₄ exceptional electrochemical performance was evaluated using Square Wave Anodic Stripping Voltammetry (SWASV). The fabricated MWCNT–ZnMn₂O₄ demonstrated lower values of Electrochemical Impedance Spectroscopy (EIS) with charge transfer resistance (<i>R</i>_ct) of approximately 34.13 Ω. Remarkably, the MWCNT–ZnMn₂O₄ electrochemical sensor exhibited the widest linear ranges of 0.5–10 μM with sensitive detection limits (0.011 μM for Hg(II) and 0.014 μM for Pb(II)). Interestingly, the MWCNT–ZnMn₂O₄ sensor showed excellent capability in detecting Hg(II) and Pb(II) in real water samples with a recovery percentage of 94.1% and 91.3%. Overall, the MWCNT–ZnMn₂O₄ modified GCE showcased superior selectivity, sensitivity, reproducibility, stability, and repeatability.</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":"40 12","pages":"2147 - 2165"},"PeriodicalIF":1.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142103625","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":"Recent technical development for on-site analysis","authors":"Mao Fukuyama","doi":"10.1007/s44211-024-00628-1","DOIUrl":"10.1007/s44211-024-00628-1","url":null,"abstract":"","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"40 9","pages":"1569 - 1570"},"PeriodicalIF":1.8,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142091424","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}