Article
Materials Science, Multidisciplinary
Reshma Beeram, Venugopal Rao Soma
Summary: Choosing a wavelength close to the electronic excitation of the analyte molecules enhances the Surface Enhanced Raman Spectroscopy (SERS) signal, known as Surface Enhanced Resonance Raman Spectroscopy (SERRS). This study demonstrates the use of SERRS for ultra-trace detection of different molecules. Diverse SERS substrates were fabricated through laser ablation and the debris of nanoparticles, usually considered undesirable, was utilized for enhanced detection.
Article
Environmental Sciences
Yanan Wang, Tieliang Zhang, Yujie Zhao, Tong Lv, Wenjing Liu, Xiaowei Liu
Summary: This study reports the use of bacterial cells for the biosynthesis of Au@TiO2 as an efficient catalyst for the degradation of methylene blue. The bio-Au2@TiO2 catalyst showed the highest catalytic activity with a kinetics constant of 0.195 min(-1), and maintained stable activity for up to 10 cycles. The presence of Au nanoparticles on the bio-TiO2 layers decreased the band gap energy of TiO2, leading to the generation of abundant photogeneration hydroxyl radicals and enhanced photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
M. Faisal, Md Abu Rashed, Jahir Ahmed, Mabkhoot Alsaiari, Mohammed Jalalah, Saeed A. Alsareii, Farid A. Harraz
Summary: This study focuses on the design and development of ultrafast smart ternary photocatalysts containing SrSnO3 nanostructures, chitosan (CTSN), and silver (Ag) nanoparticles. The results demonstrate that the Ag@CTSN/SrSnO3 photocatalyst exhibits significantly improved efficiency in removing antibiotics and dyes compared to bare SrSnO3, providing a promising and effective solution for environmental pollution management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Shuyun Bi, Rui Zhao, Yue Yuan, Xu Li, Di Shao
Summary: A new SERS method for detecting amprolium HCl was established on a gold core and silver shell substrate, producing sharp Raman signal enhancement. The method showed a good linear relationship and a LOD of 0.48 nmol L-1 after optimization.
MICROCHEMICAL JOURNAL
(2021)
Article
Optics
Abdullah A. Manda, Khaled A. Elsayed, Umar Ibrahim Gaya, Shamsuddeen A. Haladu, Ismail Ercan, Filiz Ercan, Muidh Alheshibri, Abbad Al Baroot, T. S. Kayed, Sultanah Alshammery, Nafala A. Altamimi, Amal L. Al-Otaibi
Summary: The low conductivity and high combination rate of photogenerated electrons (e-) and photogenerated holes (h+) are the real challenges in photocatalysis. The synthesis of Bi@CNT-Fe2O3 nanocomposites is proposed as a solution, and the results show that they have the highest photocatalytic degradation efficiency for methylene blue dye under UV light irradiation.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jiafeng He, Gao Song, Xinyue Wang, Ling Zhou, Jumei Li
Summary: The study developed magnetic Fe3O4/GO/Ag composite microspheres for removing organic dyes and antibiotics in water, showing high activity in SERS detection and catalytic reactions. The microspheres exhibited potential applications in trace and quantitative detection of chemicals, as well as in-situ monitoring of the catalytic degradation of organic pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Jose C. Gonzalez-Crisostomo, Rigoberto Lopez-Juarez, Rosario Isidro Yocupicio-Gaxiola, Eric Villanueva, Ethiel Zavala-Flores, Vitalii Petranovskii
Summary: A chabazite-type zeolite was prepared and modified through ion exchange. The modified chabazites showed enhanced photocatalytic activity for dye degradation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Ningning He, Shuxian Wei, Taiping Hu, Yixing Ye, Yunyu Cai, Jun Liu, Pengfei Li, Changhao Liang
Summary: This research investigates the formation mechanism and colloidal stability of monodisperse Au-Ag alloy nanoparticles synthesized through surface-plasmon-mediated alloying. The study reveals that Ag atoms can be extracted from AgNO3 solution by surface-plasmon-generated hot electrons and alloy with Au atoms. The obtained Au-Ag alloy nanoparticles exhibit superior stability without the need for any surfactants or ligands.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ming Kong, Yingyi Wu, Dandan Men, Qianqian Ding, Honghua Zhang
Summary: In this study, porous Au-Ag alloy nanoparticle arrays with hydrophobic surfaces were prepared using the polystyrene colloidal crystal template combined with the chemical etching method. The arrays enable rapid and trace SERS detection for biochemical molecules and provide a material basis for the construction of high-quality SERS substrates.
Article
Spectroscopy
Ya-Min Shen, Meng-Yue Gao, Xu Chen, Ai-Guo Shen, Ji-Ming Hu
Summary: The multiplex surface-enhanced Raman scattering (SERS) technique allows for quantitative discrimination of two subtypes of breast cancer cells by simultaneously identifying the relative expression levels of biomarkers on the cell surface. This approach provides a good example of ratiometric detection in biosystems without interference.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Sungwoo Lee, Insub Jung, Soohyun Lee, Jaewon Lee, Myeong Jin Oh, Minsun Park, MohammadNavid Haddadnezhad, Woocheol Park, Sungho Park
Summary: We developed a highly sensitive and reliable immunoassay based on surface enhanced Raman scattering (SERS) using bimetallic alloy Ag@Au hollow dual-rim nanorings (DRNs). The Ag@Au hollow DRNs, consisting of concentrically overlapped hollow nanorings with different diameters connected by thin metal ligaments, exhibited strong single-particle SERS activity and biocompatibility. By using Ag@Au hollow DRNs as nanoprobes, a low limit of detection of 10 pM for human chorionic gonadotropin (HCG) hormone was achieved, highlighting their potential as ultrasensitive SERS nanoprobes.
NANOSCALE HORIZONS
(2023)
Article
Optics
Jessy Simon, V. P. N. Nampoori, M. Kailasnath
Summary: Concentration, morphology and composition-dependent thermal diffusivity changes in bimetallic AuAg nanoparticles synthesized by femtosecond laser ablation were studied using a matched thermal lens technique. Thermal diffusivity values increased with both sample concentration and Ag/Au weight percentage ratio. Core-shell and nanoalloy structures showed greater thermal diffusivity variation, possibly due to modified surface state density of the bimetallic nanoparticles. Nonlinear optical characterization using a Nd:YAG laser showed a switching behavior from saturable absorption to reverse saturable absorption as the ablation time increased. The optical limiting properties of the nanoalloy were also studied.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Qihang Tian, Shiyi Cao, Guangyuan He, Yuting Long, Xuedong Zhou, Jihong Zhang, Jun Xie, Xiujian Zhao
Summary: In this study, Au-Ag alloy nanostars were synthesized and assembled on optical fibers to fabricate fiber probes for ultra-trace molecular detection. The fiber probes demonstrated high sensitivity and good reproducibility, making them suitable for quantitative analysis in chemistry, biology, and other fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Spectroscopy
Afang Zhu, Shujat Ali, Yi Xu, Qin Ouyang, Zhen Wang, Quansheng Chen
Summary: A surface enhanced Raman scattering (SERS) sensor combined with chemometrics was used to discriminate three pathogenic bacteria and quantitatively detect Staphylococcus aureus.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
A. K. Verma, R. K. Soni
Summary: This study presents the identification of ultra-trace analyte concentrations using laser-textured palladium-gold hierarchical superhydrophobic micro-arrays as surface-enhanced Raman sensors. The optimized fabrication parameters result in hybrid SMA-SERS sensors with excellent superhydrophobicity and uniform signal detectability down to -34.2 fM MB molecules. These sensors enable the detection and identification of multiple analytes.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Sree Satya Bharati Moram, Chandu Byram, Venugopal Rao Soma
Summary: We have developed a simple and cost-effective SERS substrate for the trace detection of pesticide and dye molecules. Surface patterns on Si substrates were fabricated using femtosecond laser ablation, and chemically synthesized Au nanostars were embedded to enhance the SERS performance. The as-prepared substrates allowed us to detect a minimum concentration of 0.1 ppm for thiram, 1 ppm for thiabendazole, 1.6 ppb for methylene blue, and 1.8 ppb for Nile blue.
Article
Chemistry, Physical
Dipanjan Banerjee, Mangababu Akkanaboina, Ravi Kumar Kanaka, Venugopal Rao Soma
Summary: In this study, novel Ag-Au-Cu alloyed trimetallic ladder-like LIPSS nanostructures were created for the first time using an axicon-generated femtosecond Bessel beam. The mechanism of LIPSS formation through modulation of ablation fluence profile and interference of photon-induced surface plasmon polariton with incident beam was revealed. The period of the fabricated low spatial frequency LIPSS was estimated to be 540 +/- 12 nm. Additionally, these trimetallic plasmonic nanostructures showed excellent performance as active surface-enhanced Raman scattering substrates, detecting traces of real-time explosives with enhancement factors in the range of 10^5.
APPLIED SURFACE SCIENCE
(2023)
Article
Instruments & Instrumentation
K. Gurushantha, G. Jagannath, S. B. Kolavekar, A. G. Pramod, Aljawhara H. Almuqrin, M. I. Sayyed, Narlagiri Linga Murthy, S. Venugopal Rao, K. Keshavamurthy
Summary: We conducted experimental measurements on the effect of annealing and intensity-dependent femtosecond third-order nonlinear optical attributes of gold nanoparticles embedded sodium borate glass specimens. The highest saturation intensity and nonlinear refraction magnitude were observed for the 7-hour annealed glass specimen. Nonlinear optical measurements were performed on the NBAu-7 glass, showing a switch from saturable absorption behavior to reverse saturable absorption at high fluence laser pulses.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Optics
Md Soif Ahmed, Sudhanshu Kumar Nayak, Lavadiya Sireesha, Jagannath Rathod, Venugopal Rao Soma, Sai Santosh Kumar Raavi
Summary: This Letter investigates the photoluminescence and nonlinear optical properties of Mn-doped Cs2AgInCl6 nanocrystals. Self-trapped excitons and enhanced NLO coefficients were observed in this material. The fundamental parameters of the nanocrystals were calculated and the potential applications in optical limiting and switching were demonstrated. This study provides insights for the design of novel photonic and nonlinear optoelectronic devices.
Article
Spectroscopy
Reshma Beeram, V. S. Vendamani, Venugopal Rao Soma
Summary: Surface-enhanced Raman spectroscopy (SERS) is an improved technique for uniquely identifying analytes under study. While SERS has shown great potential in detecting trace analytes in the laboratory, onsite detection is still limited by unreliable signals. This study presents a neural network-aided SERS model that efficiently identifies reliable SERS spectra without expert interference.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Optics
Chandu Byram, Sree Satya Bharati Moram, Dipanjan Banerjee, Reshma Beeram, Jagannath Rathod, Venugopal Rao Soma
Summary: Ever since its discovery, the laser ablation in liquid (LAL) technique has garnered significant attention in research. It has become a fascinating method for synthesizing diverse nanostructures on solid targets and distinct nanoparticles in a single attempt. This technique offers advantages over chemical routes, such as simplicity, robustness, and pure products without the need for stabilizing reagents or chemical precursors. This review focuses on our research group's contributions to laser-synthesized nanomaterials and their applications in sensing and nonlinear optics/photonics.
Article
Biochemical Research Methods
V. S. Vendamani, Reshma Beeram, S. V. S. Nageswara Rao, Soma Venugopal Rao
Summary: This article introduces a label-free, non-destructive technique called Surface-enhanced Raman spectroscopy (SERS) for rapid molecule identification. The detailed protocol for designing a SERS-active substrate with Au-nanoparticles-decorated Ag nano-dendrites is presented, aiming at trace detection of explosives, biomolecules, dye, and pesticides. The procedure for studying near-field enhancements in plasmonic structures is elaborated, along with potential solutions to challenges encountered in SERS experiments.
Article
Chemistry, Physical
V. S. Vendamani, Reshma Beeram, Venugopal Rao Soma
Summary: We have developed hybrid SERS-active substrates for ultra-sensitive detection of various analyte molecules, such as explosives, dyes, and bio-proteins. The substrates consist of vertically aligned Si nanowires decorated with Ag and Au nanoparticles, and encapsulated with MoS2 nano-sheets. The hybrid substrates exhibit superior detection capabilities and excellent signal reproducibility with low limits of detection for different analytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
B. N. Swetha, K. Keshavamurthy, A. L. Latha, A. G. Pramod, G. Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M. I. Sayyed, T. N. Ashoka, S. Venugopal Rao, M. K. Kokila
Summary: This study investigates the effect of silver nanoparticles on the nonlinear optical properties of holmium-doped melt-quenched borate-based glasses. Co-doping silver nanoparticles in lanthanum alkali borate glasses significantly improves their nonlinear absorption and optical limiting performance. The presence of silver nanoparticles in the glasses is confirmed by linear optical absorption and electron microscopic measurements. Using the open aperture Z-scan technique, the nonlinear optical and optical limiting features are determined, indicating that the high AgCl loaded lanthanum alkali borate glasses are effective in suppressing high energy near-infrared laser radiation for the protection of sensitive optical devices.
Article
Materials Science, Multidisciplinary
N. Chowdareddy, Ashok R. Lamani, A. G. Pramod, Vadiraj B. Tangod, Aljawhara H. Almuqrin, M. I. Sayyed, H. S. Jayanna, G. Jagannath, S. Venugopal Rao, K. Keshavamurthy
Summary: The study evaluates the effect of silver nanoparticles (NPs) concentration on the third-order nonlinear optical (NLO) properties of borate glasses and discusses it in depth. The presence of Nd3+ ions and Ag NPs in the glasses is confirmed through optical absorption data and transmission electron microscopy. The results show that the increase in silver NPs concentration significantly enhances the nonlinear refraction coefficient compared to the nonlinear absorption parameter, making them suitable for all-optical switching applications in the near-infrared spectral range.
Article
Chemistry, Multidisciplinary
Jagannath Gangareddy, Pratyasha Rudra, Manohar Chirumamilla, Sudheer Ganisetti, Subramanian Kasimuthumaniyan, Sourav Sahoo, K. Jayanthi, Jagannath Rathod, Venugopal Rao Soma, Subrata Das, Nitya Nand Gosvami, N. M. Anoop Krishnan, Kjeld Pedersen, Swastik Mondal, Srabanti Ghosh, Amarnath R. Allu
Summary: Metal nanoparticles (MNPs) are stabilized and applied on a newly developed H-glass substrate, offering multifunctional applications such as chemiresistive gas sensing, surface-enhanced Raman spectroscopy, and nonlinear optical absorption. The performance of the MNPs on the H-glass is comparable to existing literature, establishing a facile strategy for advanced material development.
Article
Chemistry, Analytical
Ashwini Bhat, Venugopal Rao Soma, Sharath Ananthamurthy
Summary: By monitoring the changes in bacterial membrane during laser-induced photodamage, the shifts in Raman spectra were investigated, revealing the correlation between the membrane structure changes and the compromised rotation of the bacterium.
VIBRATIONAL SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Anusha N. Ekbote, Shivaraj R. Maidur, Jitendra R. Jahagirdar, Parutagouda Shankaragouda Patil, Venugopal Rao Soma
Summary: In this study, we synthesized PMMA polymer thin films doped with two nitro substituted chalcone derivatives and investigated their linear and third-order nonlinear optical properties. The results showed that the films exhibited enhanced nonlinearity with increased chalcone doping concentration, and the F3NC doped films had a higher nonlinearity compared to the Ci3NC doped films.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Bibek Kumar Singh, Dipanjan Banerjee, A. Mangababu, Yagnesh Shadangi, N. K. Mukhopadhyay, Rajesh Rawat, A. P. Pathak, Archana Tiwari, A. Tripathi
Summary: In this study, femtosecond laser ablation was used to generate nanoparticles from decagonal quasicrystals in a liquid medium. The structural analysis showed that the nanoparticles retained the phase of the target material. Formation of Al3Ni2 phase was observed in Al70Co20Ni10, while no formation of Al-Ni phase was observed in Al70Co15Cu10Ni5. Optical analysis confirmed the formation of Al2O3 in both cases, with a weak signal of CuO detected in Al70Co15Cu10Ni5. Laser-induced periodic surface structures were also studied in the ablated region of the target's surface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)
