Article
Chemistry, Analytical
Shymaa S. Soliman, Amr M. Mahmoud, Mohamed R. Elghobashy, Hala E. Zaazaa, Ghada A. Sedik
Summary: This study developed an analytical method based on differential pulse voltammetry for the rapid and accurate detection of benzodiazepine drug midazolam hydrochloride. The method utilized a chemically modified carbon paste electrode and gold nanoparticles for the selective assay of midazolam hydrochloride, and optimized parameters to enhance sensor sensitivity.
Article
Materials Science, Ceramics
Somayeh Tajik, Hadi Beitollahi, Mehdi Shahedi Asl, Ho Won Jang, Mohammadreza Shokouhimehr
Summary: The present study utilized a nanocomposite material to modify a carbon paste electrode for the detection of sulfamethoxazole. The novel sensor showed a linear response with low detection and quantitation values for SMZ, making it suitable for analyzing SMZ in real samples.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Xiao-Jun Feng, Xiao He, Lu Lai, Qingye Lu, Li Cheng, Juan Wu
Summary: Novel magnetic-recyclable demulsifiers with high efficiency are synthesized by anchoring commercial polyether demulsifiers onto Fe3O4 nanoparticle surfaces using mussel-inspired polydopamine. These demulsifiers can be magnetically recovered and reused, showing promising potential in dewatering of water-in-oil emulsions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
Ebrahim Naghian, Zahra Mahmoodi, Faezeh Shahdost-fard, Fatemeh Nosratzehi, Kourosh Adib, Mohammad Aghaei, Hadi Mohamedian, Mehdi Rahimi-Nasrabadi
Summary: The use of manganese ferrite nanoparticles as a modifier in an electrochemical sensor significantly improved the detection of dopamine and uric acid in biofluids, showing promise for simultaneous monitoring and selective measurement. The sensor demonstrated reliability in the presence of common interferences and feasibility in detecting the analytes in complex samples such as human urine and blood serum. These findings suggest the potential of MnFe2O4 NPs as a beneficial platform in electrocatalysis fields.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Biophysics
Zhuanzhuan Shi, Xiaoshuai Wu, Zhuo Zou, Ling Yu, Fangxin Hu, Yuan Li, Chunxian Guo, Chang Ming Li
Summary: The study presents a cost-effective strip sensor for sensitive and selective detection of dopamine, exhibiting high sensitivity, a broad linear range, low detection limit, good selectivity, and flexibility for wearable applications and clinical analysis, providing a powerful analytical tool for diagnosis of dopamine-related diseases.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Kader Vural, Serkan Karakaya, Didem Giray Dilgin, Hatice Ismet Gokcel, Yusuf Dilgin
Summary: To reduce the progression of COVID-19, new treatments and drug substances are needed. One such drug is Molnupiravir (MNP), which has shown effectiveness in reducing the virus and viral RNA. Accurate and quick detection of MNP in pharmaceutical or biological samples is crucial. This study describes the electrochemical behavior and sensitive voltammetric determination of MNP using a magnetite nanoparticle modified electrode.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Environmental
Gini Rani, Kadirvelu Krishna, K. N. Yogalakshmi
Summary: The study found that using nanoparticle-coated electrodes can significantly improve the conductivity and current density of microbial electrolysis cells, demonstrating the excellent catalytic performance of Fe3O4 nanoparticles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Yu Zhang, Mingfu Gong, Xiang Li, Hongyu Liu, Penghui Liang, Shuhua Cui, Liang Zhang, Chunyu Zhou, Tao Sun, Maosheng Zhang, Cong-Ying Wen, Jingbin Zeng
Summary: In this study, an ultrasensitive colorimetry for Salmonella typhimurium detection was developed using multifunctional Au-Fe3O4 dumbbell-like nanoparticles (DBNPs), which showed excellent detection capability, efficient capture capability, and good stability and specificity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Abdelaziz Elgamouz, Abdel-Nasser Kawde, Ihsan A. Shehadi, Sareh Sayari, Sarah Ali Abdullah Mohammed, Aya Abdelrazeq, Chahlaa Naser Nassab, Ayman A. AbdelHamid, Kamrul Hasan
Summary: This study successfully synthesized graphene oxide-modified magnetite nanoparticles and used it as an electrochemical sensor for the quantitative detection of hemoglobin. The modified electrode showed a higher electrochemical surface area and was able to detect hemoglobin in human urine. Therefore, the GPE/rGO/Fe3O4 electrode has the potential to be a competitive sensor for trace amounts of hemoglobin in physiological media.
Article
Environmental Sciences
Devaraj Manoj, Lalitha Gnanasekaran, Saravanan Rajendran, A. A. Jalil, Mohammad Nahid Siddiqui, F. Gracia, Matias Soto-Moscoso
Summary: The subject of water contamination and its impact on society and humans has been a topic of discussion for several decades. Phenolic compounds are widely found in water sources and it is crucial to determine their toxicity in natural and drinking water due to their harmful effects on humans. This study focuses on the development of an effective electrochemical sensor using a mesoporous structure of Fe3O4-TiO2 decorated on a glassy carbon electrode to detect catechol. The resulting Fe3O4-TiO2 based nanocomposite exhibited a mesoporous structure with highly active magnetite nanoparticles, showing a significant increase in the electrochemical response compared to pure TiO2.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Shekher Kummari, V. Sunil Kumar, K. Yugender Goud, K. Vengatajalabathy Gobi
Summary: In this study, a versatile reusable electrochemical biosensor was developed for the detection of the antiviral drug valacyclovir. The sensor exhibited excellent performance, with the capability of rapid and accurate detection of valacyclovir at very low concentrations. The sensor also demonstrated good applicability in different sample matrices.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Tianhua Xie, Di Xu, Yunsheng Shang, Yunpeng Li, Yingqiu Gu, Guohai Yang, Lulu Qu
Summary: Detection of tumor markers is crucial for early diagnosis and improved survival rate in cancer patients. However, developing a highly sensitive and selective method to detect the tumor marker IL-6 in primary liver cancer is challenging due to limited IL-6 concentration and various interfering substances. In this study, a magnetic SERS immunoassay based on R-Fe3O4 was developed, which demonstrated excellent detection capability and selectivity for IL-6. The ultra-sensitivity and high selectivity of this method hold great prospects for medical detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Optics
Naheda H. A-Jarah, Ahmed S. Wasfi, S. M. Hamidi
Summary: This study aims to control the performance of random lasers by using magneto-plasmonic Fe3O4@Au and Au@Fe3O4 core shell nanoparticles as scatterer points. The results show that the laser efficiency of the samples is improved when an external magnetic field is applied.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Ahmed M. Abdel-Raoof, Ahmed Elsonbaty, Sara Abdulwahab, Wafaa S. Hassan, Maya S. Eissa
Summary: Food safety is a crucial concern in the current food-animal industry, and a new sensitive electrode was introduced for rapid and accurate detection of veterinary drugs in chicken meat. The electrode demonstrated high stability, sensitivity, low detection limit, and good reproducibility, with unique advantages in sample preparation and matrix interference.
MICROCHEMICAL JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Yina Cai, Binxue Ren, Chifang Peng, Cunzheng Zhang, Xinlin Wei
Summary: New nanocomposites, Fe3O4@Au-FITC, have been prepared and explored for the fluorescent detection of Pb2+. The method has shown a detection limit of 5.2 nmol/L and a linear range of 0.02-2.0 mu mol/L for Pb2+, with minimal response to common metal ions, and demonstrated successful detection of Pb2+ spiked in a lake-water sample with recoveries of 98.2-106.4%. Through ion-induced nanomaterial etching, this method shows great potential for developing robust fluorescent assays.
Article
Chemistry, Analytical
Qile Li, Ke Xu, Haipeng Zhang, Zengguang Huang, Chao Xu, Zhen Zhou, Huaping Peng, Linxing Shi
Summary: In this study, a novel Ru(bpy)(3)(2+)-Au-WS2 nanocomposite ECL probe was developed for the detection of carcinoembryonic antigen (CEA). The probe showed high sensitivity and selectivity due to the synergistic effect and biocompatibility of Au nanoparticles (Au NPs) and WS2 nanosheet. The ECL platform exhibited excellent anodic ECL performance, good reproducibility, stability, and anti-interference performance.
Article
Chemistry, Analytical
Xi-Rui Deng, Sheng-Qian Hu, Chen Sun, Sai-Jin Xiao, Gui-Ping Yang, Qiong-Qing Zheng, Ru-Ping Liang, Li Zhang, Jian-Ding Qiu
Summary: This study proposes a novel in-situ strategy to construct uracil-conjugated COFs with tunable fluorescence properties for sensitive and selective mercury(II) detection. By changing the molar ratio of precursors, the crystalline structure, fluorescence properties, and sensing performance of COFs can be regulated. This research opens up a new strategy for the effective and controllable construction of functionalized COFs for environmental analysis.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Li Zhang, Quan-Gen Tan, Sai-Jin Xiao, Gui-Ping Yang, Xin Liu, Qiong-Qing Zheng, Jia-Qi Fan, Ru-Ping Liang, Jian-Ding Qiu
Summary: In this work, a photosensitive covalent-organic framework (TphBT) was synthesized and its oxidase and peroxidase activities were reversely regulated by surface modification of single-stranded DNA (ssDNA) for the colorimetric detection of UO22+.
ANALYTICAL CHEMISTRY
(2023)
Article
Biophysics
Quan-Quan Zhuang, Jia-Lin Yang, Hui-Na Qiu, Kai-Yuan Huang, Yu Yang, Hua-Ping Peng, Hao-Hua Deng, Hui-Qiong Jiang, Wei Chen
Summary: This study presented a novel class of luminogen called 6-Aza-2-thiothymine-decorated gold nanoclusters (ATT-AuNCs) with aggregation-induced emission property, which demonstrated potent antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA). By generating reactive oxygen species (ROS) and altering the expression of multiple target proteins in MRSA cells, ATT-AuNCs effectively eliminated MRSA. Additionally, ATT-AuNCs could serve as a wound-healing agent. Therefore, ATT-AuNCs are considered robust antimicrobial aggregation-induced emission luminogens (AIEgens) capable of targeting multiple pathways to eliminate drug-resistant bacteria.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Engineering, Chemical
Xiao-Rong Chen, Cheng-Rong Zhang, Wei Jiang, Xin Liu, Qiu-Xia Luo, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: In this study, a novel three-dimensional cationic covalent organic framework (TFAM-BDNP) was designed and synthesized via Zincke reaction for the selective capture of TcO4-/ReO4-. TFAM-BDNP exhibited high adsorption capacity and extremely fast exchange kinetic for ReO4-, attributed to its open 3D hydrophobic channels, abundant active sites, and high chemical stability. Furthermore, TFAM-BDNP showed good adsorption performance for ReO4- in the presence of competing anions and under a wide pH value range, indicating its potential for efficient capture of TcO4-/ReO4- in complex environmental systems.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yu-Zhen Shi, Qing-Hua Hu, Xin Gao, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: An indium-based metal-organic framework (In-MOF) is reported for highly efficient removal of radioactive iodine from seawater. In-MOF shows high chemical stability, high adsorption capacity, and high selectivity towards iodine, leading to a high removal rate of 93.86% from seawater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Li Zhang, Quan-Gen Tan, Sai-Jin Xiao, Gui-Ping Yang, Qiong-Qing Zheng, Chen Sun, Xiang-Lan Mao, Jia-Qi Fan, Ru-Ping Liang, Jian-Ding Qiu
Summary: A covalent organic framework (Tph-BT COF) with excellent photocatalytic activity is constructed by Schiff base reaction, and its mimetic oxidase and peroxidase activities are inversely regulated by single-stranded DNA (ssDNA). Under LED light irradiation, Tph-BT exhibits outstanding oxidase activity, which is inhibited by ssDNA with poly-thymidine (T) sequences, while its weak peroxidase activity is enhanced by ssDNA with poly-cytosine (C) sequences. The study also investigates the influence of base type, base length, and other factors on the activities of the two enzymes, revealing the mechanisms behind the regulation by ssDNA.
Article
Chemistry, Multidisciplinary
Qiao-Qiao Jiang, Ya-Jie Li, Qiong Wu, Ru-Ping Liang, Xun Wang, Rui Zhang, Ying-Ao Wang, Xin Liu, Jian-Ding Qiu
Summary: A creative lock-key model based on molecular insertion strategy was used to construct molecular-inserted covalent organic frameworks, allowing for the smart modulation of photoelectric responses. This approach avoids the arduous selection and synthesis conditions required by conventional COFs, providing a promising direction for the construction of late-model photoelectric responsive materials.
Article
Spectroscopy
Sai Jin Xiao, An Ting Qiu, Hui Han Li, Meng Ping Wang, Li Zhang, Kai Xin Guo, Jing Guo, Jian-Ding Qiu
Summary: In order to ensure the long-term sustainable development of nuclear energy and prevent uranium pollution, there is an urgent need for new materials that can detect and separate uranium simultaneously. In this study, a new fluorescent covalent organic polymer (COP) named HT-COP-AO was synthesized and used as a fluorescent probe and absorbent for uranium detection and separation. The results showed that HT-COP-AO had a strong fluorescence quenching effect on uranium with a detection limit of 0.23 μM. It was found that uranium was coordinated with the amidoxime groups of HT-COP-AO through U-N and O = U = O bonds, leading to electron transfer and fluorescence quenching.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Chen -Ting Zhu, Kai -Yuan Huang, Qing-Lin Zhou, Xiang -Ping Zhang, Gang-Wei Wu, Hua-Ping Peng, Hao-Hua Deng, Wei Chen, Hamada A. A. Noreldeen
Summary: Sulfonamides are widely used but their accumulation in the human body can cause serious diseases. Therefore, a convenient, effective, and sensitive method to detect them is needed. In this study, a sensor array using BSA-AuNCs was constructed to detect five Sulfonamides, and the changes in fluorescence intensity at different excitation wavelengths were used for identification. This method shows great potential in the fields of food and drug monitoring.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Xiang-Lan Mao, Qiu-Xia Luo, Yuan-Jun Cai, Xin Liu, Qiao-Qiao Jiang, Cheng-Rong Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: The isomerism of a covalent organic framework (COF) greatly affects its electrochemiluminescence (ECL) performance. In this study, two isomeric COFs, TFPB-BD(OMe)(2)-H and TAPB-BD(OMe)(2)-H, were synthesized based on different imine linkages and conversion to the quinoline structure. Despite having the same composition and similar structures, the two COFs exhibited significant differences in photoelectrochemical and ECL fields. TFPB-BD(OMe)(2)-H showed a superior ECL emission compared to TAPB-BD(OMe)(2)-H due to stronger polar interaction and enhanced electron interactions.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Xin Gao, Qing-Hua Hu, Yu-Zhen Shi, Ru-Ping Liang, Jian-Ding Qiu
Summary: Here, we report a new adsorbent named Zn-Vlm6 with highly selective and high adsorption capacity for removing I3- from water. Zn-Vlm6 showed excellent thermal and chemical stability and achieved a high adsorption capacity of 1680.7 mg g-1 for I3-. It can selectively capture I3- in the presence of competing anions and remove up to 96.4% of I3- from different environments. Moreover, Zn-Vlm6 can also adsorb gaseous iodine up to 2470 mg g-1.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhongnan Huang, Zhenglian Li, Zhimin Weng, Paramasivam Balasubramanian, Mingchun Lai, Wei Chen, Juewen Liu, Huaping Peng
Summary: In this study, a model system was developed to evaluate the effect of electrocatalysis (EC) on electrochemiluminescence (ECL) through kinetic analysis of electrocatalytic reactions. The results demonstrated a dual EC-mediated ECL enhancement and identified the catalytically active sites. With a better understanding of the EC mechanism, the researchers successfully used EC to regulate ECL and developed a biosensor with a record low limit of detection.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Ruiting Chen, Hejing Chen, Huaping Peng, Yanjie Zheng, Zhen Lin, Xinhua Lin
Summary: A DNA biosensor based on a multi-walled carbon nanotube array modified electrode was developed for the detection of the MDR1 gene, which is crucial in cancer clinical therapy.
Article
Chemistry, Multidisciplinary
Xiao-Rong Chen, Cheng-Rong Zhang, Xin Liu, Ru-Ping Liang, Jian-Ding Qiu
Summary: A novel fluorescent ionic covalent organic framework (BTTA-BDNP) based on a linked carbazole unit was developed for the simultaneous monitoring and capture of TcO4-/ReO4-. BTTA-BDNP demonstrated a rapid fluorescence response with a low detection limit (66.7 nM) for ReO4- (a non-radioactive substitute for TcO4-). Moreover, BTTA-BDNP exhibited excellent selectivity and efficiency in trapping ReO4- in complex environments due to its high charge density and hydrophobic skeleton.
CHEMICAL COMMUNICATIONS
(2023)
Article
Biophysics
Reza Khodadadi, Manouchehr Eghbal, Hamideh Ofoghi, Alireza Balaei, Ali Tamayol, Karen Abrinia, Amir Sanati-Nezhad, Mohamadmahdi Samandari
Summary: This paper introduces an integrated portable centrifugal microfluidic system that automates cell and fluid manipulation for complete blood counting (CBC) analysis at the point-of-care (POC). The system utilizes a specially designed microfluidic disc for cell separation, solution metering and mixing, and cell counting, and is equipped with a custom script for automated quantification of cells. The proposed method shows a strong correlation with the gold standard hematology analyzer for various blood parameters. The portable system offers simplicity, affordability, and low power consumption, making it a potential solution for improving healthcare delivery in resource-limited settings and remote areas.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Nabil H. Bhuiyan, Joon S. Shim
Summary: Developing herd immunity is crucial for changing the course of the COVID-19 pandemic. An AI-driven point-of-care testing platform has been proposed for analyzing the body's response to SARS-CoV-2, and it has been successfully used for quantifying viral proteins and antibodies in blood samples. A data-receptive web-based dashboard system has also been developed for real-time analysis of herd immunity progress.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Alexiane Godain, Timothy M. Vogel, Pascal Fongarland, Naoufel Haddour
Summary: This study provides comprehensive insights into the intricate relationship between shear stress and electroactive biofilms in microbial fuel cells, highlighting the pivotal role of shear stress in influencing the growth kinetics, electrical performance, and physical structure of the biofilms. The study also emphasizes the complexities of extracellular electron transfer mechanisms and the need for complementary metaproteomic analyses.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Linjie Wang, Yixin Chen, Yang Ji, Shujun Zheng, Fei Wang, Caolong Li
Summary: A paper-based biosensor incorporating surface-enhanced Raman spectroscopy (SERS) and colorimetric detection has been developed for efficient quantification of intracellular glutathione (GSH). The biosensor exhibits excellent selectivity, stability, and precision, with low detection limits in both SERS and colorimetric modes. It has been successfully utilized for intracellular GSH detection and validated against a commercial GSH assay kit.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Quan Zhou, Jing Wang, Zhen Zhang, Alain Wuethrich, Richard J. Lobb, Matt Trau
Summary: This study presents a biosensor for sensitive detection of EMT-associated biomarkers on extracellular vesicles (EVs) surfaces during targeted therapy. Through longitudinal monitoring of patients, the biosensor shows its ability to identify the EMT-like phenotype switching on circulating EVs during the development of resistance.
BIOSENSORS & BIOELECTRONICS
(2024)
Review
Biophysics
Pratika Rai, Sabrina N. Hoba, Celine Buchmann, Robert J. Subirana-Slotos, Christian Kersten, Tanja Schirmeister, Kristina Endres, Bernd Bufe, Alexey Tarasov
Summary: Proteases have been proposed as potential biomarkers for various pathological conditions. The development of protease biosensors offers a more efficient way to investigate dysregulated proteases. This review article presents different optical and electrochemical detection methods for designing biosensors for all major protease families.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Chengxin Liu, Xu Shen, Li Yan, Runlian Qu, Yue Wang, Yaqin He, Zixuan Zhan, Piaopiao Chen, Feng Lin
Summary: In this study, a homogeneous rapid electrochemical aptasensor was developed to quantitatively detect CTCs in lung cancer patients. The aptasensor utilized a DNA nanosphere structure and a complementary aptamer to specifically detect mucin 1 as a marker for CTCs. The assay exhibited high specificity and sensitivity, and the results were consistent with other detection methods.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Danni Xue, Xing Dai, Jialong Zhao, Jiayao Zhang, Huan Liu, Kui Liu, Tao Xu, Chenjie Gu, Xingfei Zhou, Tao Jiang
Summary: In this study, a dual-enhancement SERS substrate based on Ti3C2TX and Ag nanocubes was fabricated for precise quantification of ritonavir and ibrutinib in serum. The formation of numerous electromagnetic hotspots between Ag nanocubes facilitated effective photo-induced charge transfer. The composite substrate showed excellent sensitivity, achieving low detection limits and high recoveries, making it promising for monitoring and identification of clinical blood drug concentration.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Tenghua Zhang, Zihui Xie, Xiaohe Zheng, Yuxin Liang, Yao Lu, Hankang Zhong, Feiyang Qian, Yuqing Zhu, Ruiting Sun, Yan Sheng, Jiaming Hu
Summary: This study reports a technology based on cationic lipid-polymer hybrid nanoparticles for efficient extracellular vesicle (EV) enrichment and in-situ detection of internal microRNAs. The technology demonstrates high EV enrichment efficiency and sensitive internal RNA detection, making it potentially useful for early pancreatic cancer diagnosis.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Wenjie Dai, Gaoxu Chen, Xiaoyan Wang, Shujun Zhen, Chengzhi Huang, Lei Zhan, Yuanfang Li
Summary: In this study, a novel metal organic gel (MOG) with dual electrochemiluminescence (ECL) properties was prepared by simple mixing. The MOG exhibited strong and stable anodic and cathodic ECL signals. By utilizing this MOG, an ECL resonance energy transfer (ECL-RET) biosensor was constructed for ultrasensitive detection of a specific gene. The study developed a straightforward technique for obtaining a single luminescent material with dual signals and expanded the analytical application of MOGs in the realm of ECL.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Lais Canniatti Brazaca, Amanda Hikari Imamura, Rodrigo Vieira Blasques, Jessica Rocha Camargo, Bruno Campos Janegitz, Emanuel Carrilho
Summary: The use of microfluidic paper-based analytical devices (muPADs) for medical diagnosis is a growing trend due to their low cost, easy use, simple manufacturing, and potential for application in low-resource settings. This review focuses on the advances in muPADs for medical diagnostics, discussing their use in detecting various biomarkers in common human biofluids. The challenges of biomarker detection in each sample are examined, along with innovative techniques to overcome these limitations. The commercialization difficulties of muPADs are also considered, along with future trends such as wearable devices and integrated platforms.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Minghong Jian, Xudong Sun, Hua Zhang, Xiaotong Li, Shasha Li, Zhenxin Wang
Summary: Matrix metalloproteinases (MMPs) are attractive biomarkers for cancer diagnosis and treatment, but their low abundance in biological samples, especially in the early stages of tumors, makes it challenging to precisely analyze MMP activities. In this study, a peptide microarray-based metal-enhanced fluorescence assay (PMMEFA) is proposed as a sensitive and specific method to simultaneously detect MMP-1, -2, -3, -7, -9, and -13 activities. The PMMEFA showed excellent sensitivity and was capable of detecting MMP activities in various matrices.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Kyung Ho Kim, Eunsu Ryu, Zinah Hilal Khaleel, Sung Eun Seo, Lina Kim, Yong Ho Kim, Hyun Gyu Park, Oh Seok Kwon
Summary: We have developed a novel strategy for discriminative detection of SARS-CoV-2 variants using the plasmonic photothermal effect of gold nanofilms and digital polymerase chain reaction (dPCR) technology. With this method, we were able to detect the delta and omicron variants with high sensitivity within 25 minutes from COVID-19 patients' clinical samples, making it a rapid and accurate point-of-care testing tool.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Zepeng Kang, Yuanming Wang, Haiyan Song, Xueli Wang, Job Zhang, Zhiguang Zhu
Summary: By designing a wearable and flexible lactic-acid/O2 EBFC with an air-breathing biocathode, the limitations of biocathode are effectively solved. The optimal performance conditions are determined through experiments, and the EBFC is successfully applied to power a low-power device.
BIOSENSORS & BIOELECTRONICS
(2024)
Article
Biophysics
Huayun Chen, Zhiheng You, Yuhui Hong, Xiao Wang, Mingming Zhao, Yushi Luan, Yibin Ying, Yixian Wang
Summary: This study developed a colorimetric sensor array using gas-responsive two-dimensional metal-organic framework (MOF) composites for highly sensitive detection of volatile organic compounds (VOCs). The dye/Zn-2(bim)(4) composites-based sensor arrays showed enhanced sensitivity and anti-interference properties. The findings demonstrate the potential use of dye/Zn-2(bim)(4) sensor arrays for early perception of plant diseases.
BIOSENSORS & BIOELECTRONICS
(2024)