{"title":"Advancing Biomarker Detection with Peptide-Integrated Fluorescent Probes.","authors":"Subhendu Adhikari, Saurajit Ghosh, Partha Sarathi Addy","doi":"10.1002/asia.202500211","DOIUrl":"https://doi.org/10.1002/asia.202500211","url":null,"abstract":"<p><p>Over-expressed biomarkers such as proteins, enzymes, and so forth are directly linked to various diseases. Hence, the timely detection of the biomarkers using the optical probes is a useful technique for the disease detection or early-stage prediction of a disease. Although, one of the major hurdles for this technique is the biocompatibility of the probe. In this regard, peptides are excellent choice considering their biocompatibility. Moreover, peptides are one of the most widely explored adaptable molecular templates for fabricating probes to detect biomarkers. Peptidyl templates are advantageous due to their easy synthetic methodologies, adoptable flexible structures and target selectivity. For example, various peptide-based sensors for the detection of nucleic acids including over-expressed miRNA, DNA, and RNA have been used over the decades. Numerous peptide-based enzyme-responsive biosensors, peptide conjugates have been widely explored for the detection of several therapeutically relevant overexpressed enzymes like cathepsin-B. The main focus of this review is to provide a concise overview on the recent developments for the peptide-based fluorescent probes to detect various biomarkers.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00211"},"PeriodicalIF":3.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Compositional Analysis of Fragrance Accords Using Femtosecond Thermal Lens Spectroscopy.","authors":"Rohit Goswami, Ashwini Kumar Rawat, Sonaly Goswami, Debabrata Goswami","doi":"10.1002/asia.202500521","DOIUrl":"https://doi.org/10.1002/asia.202500521","url":null,"abstract":"<p><p>Femtosecond thermal lens spectroscopy (FTLS) is a powerful analytical tool, yet its application to complex, multi-component mixtures like fragrance accords remains limited. Here, we introduce and validate a unified metric, the femtosecond thermal lens integrated magnitude (FTL-IM), to characterize such mixtures. The FTL-IM, derived from the integrated signal area, provides a direct, model-free measure of the total thermo-optical response, including critical convective effects. Applying the FTL-IM to complex six-component accords, we demonstrate its utility in predicting a mixture's thermal response from its composition through linear additivity with respect to component mole fractions. Our method quantifies the accords' behavior, revealing both the baseline contributions of components and the dominant, non-linear effects of highly active species like methyl anthranilate. This consistency is validated across single-beam Z-scan, dual-beam Z-scan, and time-resolved FTLS measurements. The metric also demonstrates the necessity of single-beam measurements for interpreting dual-beam data. This work establishes a rapid, quantitative method for fragrance analysis, offering advantages for quality control by directly linking a mixture's bulk thermo-optical properties to its composition.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00521"},"PeriodicalIF":3.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kawthar Alqudaihi, Balqees Alrwaily, Banin Alzawad, Mahshab Sheraz, Mukarram Zubair, Zeeshan Arshad, Ijaz Hussain, Md Abdul Aziz, Nadeem Baig
{"title":"Advances in Biomass-Derived Carbon Materials: Production, Functionalization, and Applications for Contaminant Removal.","authors":"Kawthar Alqudaihi, Balqees Alrwaily, Banin Alzawad, Mahshab Sheraz, Mukarram Zubair, Zeeshan Arshad, Ijaz Hussain, Md Abdul Aziz, Nadeem Baig","doi":"10.1002/asia.202500445","DOIUrl":"https://doi.org/10.1002/asia.202500445","url":null,"abstract":"<p><p>Biomass waste is a promising, cost-effective, and sustainable source of biomass-derived carbon materials (BCMs) because of its high carbon content, renewability, and environmental friendliness. This review discusses the synthesis of BCMs from several organic sources, including plant materials, animal waste, and aquatic organisms. We also examine the efficiency of these materials in removing pollutants such as heavy metals, dyes, and emerging organic contaminants. BCMs have great environmental remediation potential because of their high surface area and porosity. The review discusses essential biomass carbon materials (BCMs) like activated carbon, graphene, carbon nanotubes (CNTs), and biochar, along with their production techniques, including hydrothermal carbonization (HTC), pyrolysis, and microwave-assisted methods. It also explores strategies for modifying BCMs to enhance their adsorption capabilities and effectiveness in tackling water pollution. The review concludes with a discussion of the challenges related to biomass conversion, processing, and commercialization that must be addressed to facilitate using BCMs for environmental purposes.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00445"},"PeriodicalIF":3.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Point-of-Care Photoresistive and Colorimetric Sensor for Iron Detection in Environmental and Biological Samples with Spectroscopic Validation.","authors":"Shrikant Kashyap, Purushotam Shivshakti Mahan, Harendra Singh, Sibnath Kayal, Tapas K Mandal","doi":"10.1002/asia.202500375","DOIUrl":"https://doi.org/10.1002/asia.202500375","url":null,"abstract":"<p><p>The development of an innovative, selective, and portable digital photoresistive sensor for sensing iron in the environment and biological samples is reported in this article. Colorimetric sensing of the analyte is investigated, akin to the spectrophotometric absorption principle. Iron in the sample is measured by the formation of orange-colored ferroin resulting from the 1,10-phenanthroline reaction. The reaction scheme is designed to be pH-specific, simple, quick, and effective in detecting trace amounts of iron in real sample matrices without employing any tedious route of synthesis and its characterization. A digital photoresistive prototype is fabricated using a light-emitting diode (LED) and a light-dependent resistor (LDR) to measure the concentration of iron much less than the recommended value by the World Health Organization (WHO). The limit of detection (LOD) is reported to be 0.017 mg L<sup>-1</sup>, the lowest to date for the class of point of care (POC) devices. The sensor was tested on 55 real-life samples and exhibited good accuracy with UV-vis and AAS measurements with an average absolute % error of 3.258%-14.34%. The present prototype promises to be a user-friendly, cost-effective solution to the pressing need of monitoring iron for the environment and healthcare sector.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00375"},"PeriodicalIF":3.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3D Printed Iron Pyrite via Meniscus Confinement: A Promising Material for Photovoltaic Solar Cells.","authors":"Netrapal Singh, Manoj Goswami, Komal Sharma, Mohammad Ashiq, Santosh Sridhar Mysore, Surender Kumar","doi":"10.1002/asia.202401864","DOIUrl":"https://doi.org/10.1002/asia.202401864","url":null,"abstract":"<p><p>The meniscus-confined electrochemical 3D printing (MC-E3DP) process has emerged as a novel approach for fabricating sub-micron complex structures through localized electrochemical deposition from salt solutions of desired materials. This study reports, for the first time, the MC-E3DP fabrication of iron oxide (Fe<sub>3</sub>O<sub>4</sub>) thin films on indium tin oxide (ITO)-coated glass substrates. The Fe<sub>3</sub>O<sub>4</sub> films are characterized using XRD, Raman spectroscopy, and UV-vis pectroscopy, confirming phase purity. Subsequently, the Fe<sub>3</sub>O<sub>4</sub> thin films are subjected to sulfurization under varying conditions to synthesize iron pyrite (FeS<sub>2</sub>) thin films, a promising solar absorber material for photovoltaic applications. The sulfurized FeS<sub>2</sub> thin films are analyzed for phase purity using XRD, XPS, and Raman spectroscopy, while FESEM was employed to study their morphology. UV-vis-NIR spectroscopy reveals high absorption coefficients (∼10<sup>5</sup> cm<sup>-1</sup> for wavelengths below 700 nm) and indirect bandgaps ranging from 0.78 to 0.86 eV. All films exhibited n-type conductivity with a charge carrier density of ∼10<sup>19</sup> cm<sup>-3</sup>. Photoelectrochemical studies demonstrated a stable photocurrent response, indicating their suitability for solar cell applications. The MC-E3DP process offers exceptional control over structure and growth, making it a promising technique for creating device architectures tailored for specific applications.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e01864"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Construction of a Novel Solar-Light-Driven Bismuth Titanate/Barium Titanate Photocatalyst for Significantly Enhanced Purification of Nitric Oxide.","authors":"Wei Zhao, Dingwen Zhang, Wang Zhao, Qian Wang, Aijian Wang, Danhong Shang, Qin Zhong","doi":"10.1002/asia.202500651","DOIUrl":"https://doi.org/10.1002/asia.202500651","url":null,"abstract":"<p><p>Photocatalytic denitrification is a promising approach for environmental remediation and solar energy conversion. In this study, a series of Bi<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>/BaTiO<sub>3</sub> heterojunctions were synthesized via hydrothermal method, demonstrating superior photocatalytic NO removal efficiency (94%) compared to individual components. Comprehensive characterizations confirmed the formation of a tightly coupled heterojunction with enhanced visible-light absorption and charge separation. Optical and electrochemical analyses revealed that the composite facilitates efficient electron-hole separation (supported by reduced PL intensity and lower charge-transfer resistance in EIS) while retaining strong redox potentials, consistent with an S-scheme charge-transfer mechanism. Additionally, the increased surface area (BET) and porosity further promote reactant adsorption. Trapping experiments and electron paramagnetic resonance (EPR) confirmed that e⁻, h⁺, and ·O<sub>2</sub>⁻ are key reactive species. The synergistic effects of improved charge dynamics, optimized light utilization, and interfacial electron transfer collectively contribute to the enhanced photocatalytic performance.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00651"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kun Liu, Yisha Ma, Qianqian Yu, Muhua Yuan, Litao Tang
{"title":"Effect of Annealing on Crystalline Phase and Piezoelectric Properties of PVDF/[BuPy]PF<sub>6</sub> Composites.","authors":"Kun Liu, Yisha Ma, Qianqian Yu, Muhua Yuan, Litao Tang","doi":"10.1002/asia.202500571","DOIUrl":"https://doi.org/10.1002/asia.202500571","url":null,"abstract":"<p><p>In this work, the effect of N-Butylpyridinium hexafluorophosphate ([BuPy]PF<sub>6</sub>) on the crystalline phase and phase transition of poly(vinylidene fluoride) (PVDF) was investigated in detail. The results show that [BuPy]PF<sub>6</sub> can induce the crystallization of β-PVDF crystals from the melt. With an increase in [BuPy]PF<sub>6</sub> content from 0% to 20%, the content of β-PVDF crystals rises from 16.7% to 65.6%. Taking the composites containing 4% and 20% [BuPy]PF<sub>6</sub> as examples, the in situ annealing process at 160 °C were tracked with the application of FT-IR spectra. It has been confirmed that the annealing process leads to a polar phase transition from α to γ, particularly evident in samples with a 4% [BuPy]PF<sub>6</sub> content, where the polar phase content rises from 48.1% to 61.4%. Furthermore, the α→γ phase transition improves the piezoelectric properties of PVDF films. After annealing, the piezoelectric coefficient d<sub>33</sub> of samples with a 4% [BuPy]PF<sub>6</sub> content increases from 4.2 to 5.5 pm/V.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00571"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BF<sub>3</sub>·OEt<sub>2</sub> Promoted 1,6-Conjugate Addition of para-Quinone Methides: A Regioselective Approach to Diarylmethyl-Substituted Carbo- and Heterocycles.","authors":"Megha Rawat, Rajnish Budhwan, Anoop Yadav, Rama Krishna Peddinti","doi":"10.1002/asia.202500595","DOIUrl":"https://doi.org/10.1002/asia.202500595","url":null,"abstract":"<p><p>In this work, we report a base-free and transition metal-free 1,6-conjugate addition strategy for synthesizing unsymmetrical diaryl-substituted methanes possessing carbo- and heterocycles such as 1,3-indandione, aminouracils, and barbituric acid derivatives from para-quinone methides (p-QMs) using BF<sub>3</sub>·OEt<sub>2</sub> as promoter. The high functional group tolerance, good to excellent yields, and mild reaction conditions of this protocol underscore its significant potential for the synthesis of a broad spectrum of titled products. Furthermore, gram-scale synthesis and versatile subsequent conversions highlight the synthetic utility of these scaffolds.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00595"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhancing Hydrogen Generation by Anodic Oxidation of Urea over Superb Hydrophilic Hierarchical Ni, S co-Doped Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> Nanosheets.","authors":"Yurun Tong, Yuyang Liu, Yijie Zhong, Weitao Wang, JunChao Lou, Jing Zhang, Yating Wan, Enlai Hu","doi":"10.1002/asia.202500608","DOIUrl":"https://doi.org/10.1002/asia.202500608","url":null,"abstract":"<p><p>Surface wettability are of great significance to electrocatalysts for various electrochemical reaction. In this work, Ni, S co-doped Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> nanosheets on Ni foam (Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs) with high hydrophilicity and hierarchical structure are synthesized. The doping of S is the key factor to achieve an ultrahigh hydrophilic surface, identified by the contact angle measurement. As except, the as-prepared Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs display prominent activity for urea oxidation reaction (UOR), which reach the current density of 10 mA cm<sup>-2</sup> at a low potential of 1.28 V (vs. reversible hydrogen electrode, RHE) with excellent stability. Remarkably, when paired with Ni-Mo electrode to fabricate overall urea electrocatalysis device, a cell potential of mere 1.33 V is required to afford the current density of 10 mA cm<sup>-2</sup>, making the Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs an outstanding UOR electrocatalyst for efficient hydrogen production.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00608"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent Advances in Mn<sub>x</sub>Cd<sub>1-x</sub>S Solid-Solution-Based Photocatalysts for Preparation, Modification, and Application.","authors":"Qianqian Liu, Lei Shi","doi":"10.1002/asia.202500451","DOIUrl":"https://doi.org/10.1002/asia.202500451","url":null,"abstract":"<p><p>In recent decades, Mn<sub>x</sub>Cd<sub>1-x</sub>S-based photocatalysts have attracted much attention in the photocatalytic hydrogen evolution, reduction of CO<sub>2</sub>, and degradation of pollutants by virtue of their large visible-light response range and high photogenerated electron mobility efficiency. This paper provides a systematic and comprehensive account of the synthesis, modification, and application of Mn<sub>x</sub>Cd<sub>1-x</sub>S-based solid solution photocatalysts. Specifically, several common preparation methods of Mn<sub>x</sub>Cd<sub>1-x</sub>S, such as hydrothermal, solvent-thermal, and high-temperature vulcanization are outlined in terms of synthesis. It is also detailed that the photocatalytic performance of Mn<sub>x</sub>Cd<sub>1-x</sub>S can be well improved by elemental doping, morphology modulation, construction of heterojunction, and addition of cocatalysts. Furthermore, the current challenges and development of Mn<sub>x</sub>Cd<sub>1-x</sub>S-based photocatalysts are proposed. It is of great significance for subsequent researchers to prepare efficient and stable Mn<sub>x</sub>Cd<sub>1-x</sub>S-based photocatalysts in future.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":" ","pages":"e00451"},"PeriodicalIF":3.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}