Article
Environmental Sciences
Monika Patel, Neha Bisht, Priyanka Prabhakar, Raj Kumar Sen, Pradip Kumar, Neeraj Dwivedi, Mohammad Ashiq, D. P. Mondal, Avanish Kumar Srivastava, Chetna Dhand
Summary: We developed an effective electrochemical sensor using a ternary nanocomposite of reduced graphene oxide functionalized with polydopamine and alanine for simultaneous detection of four heavy metal ions (Cd2+, Pb2+, Fe2+, and Cu2+). The sensor exhibited high sensitivity and low interference in detecting the targeted heavy metal ions in water and soil samples with detection limits and sensitivities provided.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Jiepei Gao, Hongji Li, Mingji Li, Guilian Wang, Yongbing Long, Penghai Li, Cuiping Li, Baohe Yang
Summary: The study successfully fabricated an electrochemical plant sensor for detecting levels of tryptophan (Trp) in plants, providing important technical support for the development of precision agriculture.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Mengnan Jiang, Junyan Tang, Nuoyi Zhou, Juan Liu, Feifei Tao, Fei Wang, Caolong Li
Summary: Domoic acid is a highly neurotoxic substance requiring specific and rapid detection methods. An electrochemical MIP sensor based on PDA-rGO/PAM was successfully developed for domoic acid detection, showing potential for on-site monitoring of marine biotoxins. The sensor demonstrated high sensitivity and specificity, allowing direct detection of domoic acid content in mussel extracts without complex pretreatment.
Article
Chemistry, Multidisciplinary
Du Won Jeong, Kyuhyoung Kim, Geonhee Lee, Minsoung Kang, Hyunju Chang, A-Rang Jang, Jeong-O Lee
Summary: In this study, we demonstrated that the direct intercalation of alkali-metal cations is not necessary for the redox reaction of Prussian blue. Passivation of Prussian blue thin films with monolayer graphene preserved its electrochemical activity and enhanced its stability. We also showed the potential of a transparent graphene electrode as an efficient hydrogen peroxide transducer.
Article
Chemistry, Analytical
Shuwen Cheng, Danyao Tang, Yi Zhang, Libin Xu, Kunping Liu, Kejing Huang, Zhengzhi Yin
Summary: A novel electrochemical sensor was developed for the recognition and detection of tartrazine. The sensor showed a large and specific response to tartrazine due to the synergistic effect of the strong electrocatalytic activity of PtCo nanoalloy-decorated graphene oxide and the high tartrazine recognition ability of the imprinted cavities. The sensor exhibited good performance in terms of detection limit, anti-interference ability, stability, and reproducibility, and was successfully applied to detect tartrazine in spiked food samples.
Article
Biochemistry & Molecular Biology
Pornsuda Maraming, Nang Noon Shean Aye, Patcharee Boonsiri, Sakda Daduang, Onanong Buhome, Jureerut Daduang
Summary: Polydopamine nanoparticles (PDA-NPs)-functionalized electrochemical aptasensor was developed for the rapid, sensitive, and cost-effective detection of glycated albumin (GA). The aptasensor showed a broad linearity for GA detection in a clinically relevant range, with low detection limit, good reproducibility, and practicality. Furthermore, the aptasensor demonstrated high selectivity towards GA and potential clinical application in serum samples.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Chemistry, Analytical
Gan Yang
Summary: Determining the concentration of target substances, such as caffeine, is crucial in food safety, environmental detection, and drug supervision. Electrochemical sensors, particularly those using graphene oxide (GO) and reduced graphene oxide (RGO), have shown great potential in efficiently and rapidly detecting caffeine in various media. GO and RGO possess advantages such as low cost, solubility in polar solvents, wide working potential range, and high reactivity towards caffeine. This review aims to provide researchers in this field with a comprehensive understanding of recent developments in the preparation of caffeine sensors using GO and RGO.
CURRENT ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Shuxian Chen, Jingkun Xu, Min Shi, Yongfang Yu, Quan Xu, Xuemin Duan, Yansha Gao, Limin Lu
Summary: The MXene/MWCNTs nanohybrid is considered an ideal electrode material due to its unique structure and properties. A novel approach was developed to cross-link amino functionalized multi-carbon nanotubes onto polydopamine functionalized MXene, resulting in a composite with hierarchical structure, large specific surface area, good conductivity and electrocatalytic ability. The modified electrode showed excellent sensing performance for acetaminophen detection with good linear response, low detection limit, reproducibility, selectivity, and stability. This method was successfully applied to detect acetaminophen in actual samples.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Sevgi Guney
Summary: A highly selective sensor for the electrochemical sensing of ornidazole (OR) was fabricated using an electrochemically reduced graphene oxide (ERGO) and molecularly imprinted polydopamine (PDA). The sensor showed a linear analytical response in the concentration range of 1.5 x 10(-9) M to 1.0 x 10(-8) M and 1.0 x 10(-8) M to 2.0 x 10(-7) M, with a detection limit of 1.1 x 10(-9) M. The combination of ERGO and molecularly imprinted PDA allowed for highly sensitive detection of OR concentration.
Article
Chemistry, Analytical
M. Sabeti, Ali A. Ensafi, B. Rezaei
Summary: A electrochemical sensor based on glassy carbon electrode was prepared using f-MWCNTs and polydopamine for morphine determination. The sensor showed high sensitivity and good selectivity, with a linear dynamic range of 0.075-75.0 μM and a detection limit of 0.06 μM. The method was successfully applied to human plasma and urine samples for morphine determination.
Article
Chemistry, Physical
Dongzhi Zhang, Xiaoshuang Song, Zhao Wang, Haonan Chen
Summary: This study presents a solution for high-performance humidity sensors by coating PDA-GO nanocomposite films on quartz crystal microbalances. The sensors exhibit best dynamic response with specific ratio and spray amount, fast response/recovery time, stable repeatability, and excellent stability, showing potential in various applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Electrochemistry
Wenshi Li, Wei Yang, Maosheng Wu, Man Zhao, Xianmao Lu
Summary: Graphene-based supercapacitors have self-discharge behavior, which limits their long-term energy storage applications. This study shows that a self-polymerized dopamine coating on the graphene surface can reduce self-discharge, leading to improved specific capacitance and rate performance.
ELECTROCHIMICA ACTA
(2022)
Review
Biochemical Research Methods
Mandana Amiri, Khadijeh Nekoueian, Reyhaneh Sadat Saberi
Summary: Research on graphene-based carbon nanocomposites has significantly increased in recent years, with functionalized graphene structures like graphene oxide and reduced graphene oxide showing great potential in novel electrochemical sensors. Aptamers-based electrochemical sensors have gained attention for their high sensitivity, selectivity, simplicity, and low cost.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Taesik Eom, Junghyun Lee, Seunghyeon Lee, Busra Ozlu, Sunwoo Kim, David C. Martin, Bong Sup Shim
Summary: The article presents an electrochemical synthesis method for highly conductive PDA composites and demonstrates their advantages in terms of electrochemical performance and structural modulation. This unique PDA composite can be used to develop edible/implantable/biodegradable electrodes, biosensors, and neuromorphic electrochemical devices for future bioelectronic applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Mayra K. S. Monteiro, Djalma R. Da Silva, Marco A. Quiroz, Vitor J. P. Vilar, Carlos A. Martinez-Huitle, Elisama V. Dos Santos
Summary: The hybrid electrochemical sensor composed of cork and graphite showed high sensitivity and reproducibility for detecting caffeine in aqueous solutions, making it suitable for analyzing samples like soft drinks and pharmaceutical formulations. The cork-graphite sensors exhibited a wider linear response range and lower limits of detection compared to traditional graphite sensors. The electrochemical determinations showed high accuracy when compared with high performance liquid chromatography measurements, suggesting the potential use of these sensors for determining caffeine in different samples.
Article
Electrochemistry
Wenhai Tan, Youfeng Zhang, Yichen Zhang, Yanbo Ma, Chao Zhao, Yinling Wang
Summary: This study synthesized Co3O4/CC cathode materials with excellent performance for aqueous zinc-ion batteries by varying the reactant concentration. The Co3O4/CC nanowires exhibited uniform distribution, regular surface, and small size on the carbon cloth. The battery assembled with Co3O4/CC material synthesized at a reactant concentration ratio of 2:1 showed better performance, with high discharge specific capacity and capacity retention rate.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Article
Electrochemistry
T. Salahuddin, Iqra Kousar, Mair Khan, M. Munawwar Iqbal Ch
Summary: This paper investigates the dynamics of fluid motion powered by cilia within a curved channel and examines the chemical reactions occurring in the presence of electro-osmotic impact. The findings offer insights into various flow characteristics and present a method for simulating non-Newtonian fluid models in three dimensions. Additionally, the model has potential applications in the development of micro-vascular chips, which could be crucial for diagnosing blood-related issues.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Review
Electrochemistry
Ahmed Abou-Shady
Summary: Soil electrokinetic (SEK) is a significant technology with various applications in fields such as soil remediation, pollutant removal, and water regulation. This review summarizes the recent advancements in SEK, focusing on electrode modifications and material additives, and suggests future research directions.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
