Article
Chemistry, Analytical
Wenfang Du, Jie Liu, Hong Li, Chenyi Deng, Jie Luo, Qianqian Feng, Yan Tan, Shengyuan Yang, Zhaoyang Wu, Fubing Xiao
Summary: In this study, a two-dimensional photonic crystal dually cross-linked supramolecular hydrogel was constructed for the colorimetric and fluorescent dual-mode sensing of bisphenol A (BPA) using a host-guest pair of beta-cyclodextrin and tert-butyl. The proposed method provides a sensitive, selective, cost-effective, and regenerative dual-mode approach for BPA analysis, and offers new insights for the design of diversified sensing platforms.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Annika Musse, Francesco La Malfa, Virgilio Brunetti, Francesco Rizzi, Massimo De Vittorio
Summary: The study developed a flexible glucose biosensor using a gold electrode and chronoamperometric measurements at different potentials to determine the linear range and detection limit, suitable for on-site testing for various body fluids, especially for non-invasive sweat sensing wearables.
Article
Electrochemistry
Xinyu Li, Surbhi Sharma, Damien W. M. Arrigan, Debbie S. Silvester
Summary: This study directly compares cobalt sulfide nanostructure-based electrodes prepared by two different methods for electrochemical water splitting and glucose sensing. The results show that the electrode prepared by electrodepositing cobalt sulfide demonstrates better performance in oxygen evolution reaction and glucose detection compared to the electrode prepared by hydrothermal method.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Polymer Science
Unchalee Kongintr, Benchaporn Lertanantawong, Chamras Promptmas
Summary: In this study, a label-free electrochemical biosensor for reliable detection of serum homocysteine (Hcy) was developed using a molecularly imprinted polymer (MIP) and nanocomposite. The Hcy-MIP biosensor showed high sensitivity, with a linear response range of 5.0 to 150 μM and a limit of detection of 1.2 μM. It demonstrated low cross-reactivity with other compounds and achieved good recoveries and repeatability. This novel biosensor offers a new and effective method for Hcy assay compared to existing techniques.
Article
Chemistry, Multidisciplinary
Wancun Zhang, Pin Zhang, Ying Liang, Weyland Cheng, Lifeng Li, Huanmin Wang, Zhidan Yu, Yan Liu, Xianwei Zhang
Summary: In this study, a ratiometric hairpin DNA probe based electrochemical biosensor was developed for rapid and sensitive detection of Hg2+. The biosensor showed high ultrasensitivity, specificity, repeatability, and reproducibility in quantifying trace Hg2+. It exhibited a broad linear dynamic range and high sensitivity, and demonstrated excellent selectivity towards Hg2+ ions in the presence of other metal ions. The biosensor has been successfully applied in the detection of Hg2+ in various samples with good recovery rate and small relative standard deviations.
Review
Chemistry, Analytical
Jaya Baranwal, Brajesh Barse, Gianluca Gatto, Gabriela Broncova, Amit Kumar
Summary: Electrochemical sensors are widely used in various industries due to their variable reporting signals and low theoretical detection limits. This review article covers the latest advances and applications of electrochemical sensors in different industries, as well as the role of nanomaterials in their research and advancements.
Article
Engineering, Electrical & Electronic
Gulsen Baytemir, Ilke Gurol, Selcan Karakus, Cihat Tasaltin, Nevin Tasaltin
Summary: This paper demonstrates the fabrication of non-enzymatic electrochemical sensors based on NiPc and NiPc-borophene nanocomposite for glucose detection at room temperature. The addition of borophene improves the sensitivity and detection limit of the sensors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Environmental Sciences
M. Ramya, P. Senthil Kumar, Gayathri Rangasamy, V. Uma Shankar, G. Rajesh, K. Nirmala, A. Saravanan, Alagumalai Krishnapandi
Summary: Industrialization and globalization have led to the release of large quantities of toxic chemicals into the environment, highlighting the importance of developing sensitive, reliable, and cost-effective environmental pollutant sensor platforms. Progress has been made in recent years in expanding electrochemical sensors and biosensors using nanomaterials, with a focus on rapidly detecting emerging biomarkers in various applications. Numerous trends in the growth of nanotechnology-based electrochemical sensor platforms have been identified, showcasing the integration strategies, applications, specific properties, and future projections of nanostructured materials for advanced sensor platforms.
Article
Biochemical Research Methods
Meike Bauer, Lukas Wunderlich, Florian Weinzierl, Yongjiu Lei, Axel Duerkop, Husam N. Alshareef, Antje J. Baeumner
Summary: A multi-analyte sensing system using only laser-induced graphene (LIG) was developed for sweat analysis, showing excellent performance in electrochemical sensing.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Liying Liu, Hao Yu, Qiang Zhao
Summary: This study thoroughly characterized the binding performance of a 60-nt anti-BPA DNA aptamer and successfully truncated it to a 29-nt DNA without losing affinity. With the truncated aptamer immobilized on a gold electrode, a reagent-less electrochemical aptamer-based sensor was developed for rapid BPA detection. The sensor showed quick response, selectivity, and the ability to detect BPA in complex samples.
Article
Biophysics
Lanting Qian, Sharmila Durairaj, Scott Prins, Aicheng Chen
Summary: The rapid growth of the pharmaceutical industry due to increasing human population has led to the need for advanced nanomaterial-based electrochemical sensors and biosensors for monitoring pharmaceutical pollutants. This review article surveys state-of-the-art sensors for detecting significant pharmaceutical compounds and highlights strategies for developing high-performance sensors tailored toward specific pharmaceuticals.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Apichart Saenchoopa, Supannika Klangphukhiew, Rachata Somsub, Chanon Talodthaisong, Rina Patramanon, Jureerut Daduang, Sakda Daduang, Sirinan Kulchat
Summary: The study introduces a disposable electrochemical biosensor for detecting Hg(II) in water by modifying a screen-printed carbon electrode (SPCE) with a composite layer of silver nanowires, hydroxymethyl propyl cellulose, chitosan, and urease. The biosensor showed excellent performance with an incubation time of 10 min and a linear sensitivity range of 5-25 mu M. The device exhibited good recoveries for Hg(II) detection in real water samples and proved to be a reliable method compared to inductively coupled plasma optical emission spectrometry (ICP-OES).
Article
Biochemical Research Methods
Piyush Kumar, Shivangi Shimali, Shivangi Chamoli, Kamil Reza Khondakar
Summary: This review evaluates and discusses microfluidic-based detection methods for Bisphenol A (BPA) and microplastics. Microfluidic devices have advantages such as portability, miniaturization, and high sensitivity, making them suitable for quick screening and real-time monitoring.
Article
Chemistry, Analytical
Shuai Zhao, Tuoyu Zhou, Aman Khan, Zhengjun Chen, Pu Liu, Xiangkai Li
Summary: An electrochemical biosensor for bisphenol A detection was developed by displaying tyrosinase on the surface of Escherichia coli cells and adsorbing it onto a glassy-carbon electrode. The biosensor showed a linear relationship within a concentration range and high detection limit, with respectable accuracy for detecting bisphenol A in tea and juice samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Biomaterials
Ryan Yow Zhong Yeo, Bin Hou Chin, Muhammad Farhan Hil Me, Jan Feng Chia, Hai The Pham, Ahmad Razi Othman, Abdul Wahab Mohammad, Wei Lun Ang, Swee Su Lim
Summary: This study demonstrates low-cost and rapid surface modification strategies for microbial electrochemical sensors, which successfully detect multiple pollutants. The carbon powder-coated bioanode shows the best signal profile and roughness, indicating its potential to replace conventional water quality analysis methods.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Jung-El Ryu, Sohyeon Park, Yongjo Park, Sang-Wan Ryu, Kyungwook Hwang, Ho Won Jang
Summary: The implementation of high-efficiency and high-resolution displays has been a research focus. Micro-LEDs, as promising display technology, have advantages over other displays. Challenges including low quantum efficiency, time-consuming transfer, and complex color conversion have been overcome with technological breakthroughs. This review presents current status and critical challenges of micro-LED technology and promising technical breakthroughs for commercialization of high-performance displays.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Young-Moo Jo, Yong Kun Jo, Jong-Heun Lee, Ho Won Jang, In-Sung Hwang, Do Joon Yoo
Summary: In order to improve the performance of gas sensors and enhance the quality of life, the use of metal-organic frameworks (MOFs) as sensing materials has been explored. MOFs are known for their high surface area, porosity, and unique surface chemistry, making them promising for gas-sensor innovations. Various types of MOFs have been developed by studying their compositional and morphological dependences, and incorporating catalysts and light activation. Additionally, MOFs have multiple applications as molecular sieves, absorptive filtering layers, and heterogeneous catalysts due to their separation properties and catalytic activity.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Won Seok Cho, Dae Myung Hong, Wan Jae Dong, Tae Hyung Lee, Chul Jong Yoo, Donghwa Lee, Ho Won Jang, Jong-Lam Lee
Summary: In this study, bismuth-based catalysts were introduced for the efficient electrochemical reduction of CO2 to formic acid. The catalysts consisted of petal-shaped Bi2O2CO3 (BOC), which spontaneously formed from Bi thin film in aqueous carbonate solution at room temperature. The BOC petals transformed to reduced BOC (R-BOC) during the electrochemical reduction process, and the lattice mismatch between the domains induced strain at the interfaces. The R-BOC petals exhibited a superior Faradaic efficiency of 95.9% for the electrochemical conversion of CO2 to formic acid.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Tuan Van Nguyen, Thang Phan Nguyen, Quyet Van Le, Dung Van Dao, Sang Hyun Ahn, Soo Young Kim
Summary: In this study, a facile, inexpensive, and scalable method for the fabrication of extremely small MoS2 NFs (SNFs) was proposed for the first time. The SNFs exhibited enhanced catalytic activity compared to conventional MoS2 NFs due to the increased number of active sites. The SNFs also showed superior electrocatalytic performance for hydrogen evolution reaction, with low Tafel slope, overpotential, and high stability in an acidic environment.
APPLIED SURFACE SCIENCE
(2023)
Review
Environmental Sciences
Heena Garg, Shilpa Patial, Pankaj Raizada, Van-Huy Nguyen, Soo Young Kim, Quyet Van Le, Tansir Ahamad, Saad M. Alshehri, Chaudhery Mustansar Hussain, Thi Thanh Huyen Nguyen, Pardeep Singh
Summary: Formulating heterojunctions with high efficiency using solar light is a promising solution for energy and environmental crises. Hexagonal-borocarbonitride (h-BCN) based Z-schemes have gained attention as potential candidates due to their excellent oxidation and reduction properties, light-harvesting ability, charge migration and separation capabilities, and redox ability. This review discusses the current state-of-the-art in Z-scheme photocatalytic applications, including synthesis techniques, reaction mechanisms, and the use of h-BCN-based heterojunction photocatalysts in various photo-redox applications. Challenges and future directions in environmental remediation are also proposed.
Article
Materials Science, Multidisciplinary
Goeen Jeong, Hyung-Seop Han, Hojeong Jeon, Yu-Chan Kim, Ho Won Jang, Myoung-Ryul Ok
Summary: Although metallic microneedles (MNs) and iontophoresis have been extensively studied, the use of biodegradable metals for transdermal drug delivery has not received much attention. In this study, Mg was employed as a promising candidate for an MN electrode due to its metallic properties and the hydrogen gas generated during Mg corrosion. The Mg MN electrode was fabricated using a nanosecond laser, and the hydrogen gas produced during iontophoresis was measured at various applied potentials. The results demonstrate an optimal potential range for iontophoresis based on the combined effect of enhanced drug diffusion and impediment from hydrogen generation.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Mintesinot Tamiru Mengistu, Tadele Hunde Wondimu, Dinsefa Mensur Andoshe, Jung Yong Kim, Osman Ahmed Zelekew, Fekadu Gashaw Hone, Newaymedhin Aberra Tegene, Noto Susanto Gultom, Ho Won Jang
Summary: A simple wet chemical ultrasonic-assisted synthesis method was used to prepare visible light-driven g-C3N4-ZnO-Co3O4 (GZC) heterojunction photocatalysts. The synthesized catalysts were characterized using various techniques. The GZC composite exhibited improved photocatalytic performance, with significantly higher degradation efficiency for MB dye compared to other samples. The stability experiment showed that GZC-3 maintained its photocatalytic activity after four recycling cycles. Therefore, GZC composite is an environmentally friendly and efficient photocatalyst with potential applications in dye-contaminated wastewater treatment.
BIOINORGANIC CHEMISTRY AND APPLICATIONS
(2023)
Article
Engineering, Environmental
Jeong Hyun Oh, Gyeong Ho Han, Junhyeong Kim, Ji Eun Lee, Hyeonjin Kim, Su Kyung Kang, Hyunki Kim, Sanghyuk Wooh, Pyung Soo Lee, Ho Won Jang, Soo Young Kim, Sang Hyun Ahn
Summary: The rational design of electrodes is crucial for efficient hydrogen production through water electrolysis. This study demonstrates the significant role of physical properties of electrodes in enhancing the mass transfer performance of the electrolyzer, especially at high current densities. Self-supported NiMo and NiFe electrodes with high wettability, porosity, and gas permeability are fabricated using electrodeposition. The combination of these electrodes with a membrane electrode assembly in anion exchange membrane water electrolyzer (AEMWE) results in significantly decreased overpotentials, particularly in the high current density region. The AEMWE achieves a current density of 7.5 A/cm2 with a lower heating value efficiency of 50% and shows excellent stability at a current density of 1.00 A/cm2 for 100 hours. These findings highlight the crucial role of rational electrode design in achieving high-performance AEMWE.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Ji Hyun Baek, Kyung Ju Kwak, Seung Ju Kim, Jaehyun Kim, Jae Young Kim, In Hyuk Im, Sunyoung Lee, Kisuk Kang, Ho Won Jang
Summary: Recently, artificial synapses involving an electrochemical reaction of Li-ion have been found to possess remarkable synaptic properties. A two-terminal Au/LixCoO2/Pt artificial synapse was proposed as a promising candidate for hardware neural networks, demonstrating extraordinary neuromorphic behaviors based on controlled intercalation and deintercalation of Li-ion inside the films. These devices outperformed three-terminal synaptic transistors in simulations of convolutional neural networks and multilayer perceptrons.
NANO-MICRO LETTERS
(2023)
Review
Energy & Fuels
Jinghan Wang, Dokyoon Kim, Jong Hyeok Park, Sangwoo Ryu, Mohammadreza Shokouhimehr, Ho Won Jang
Summary: This article reviews recent advancements in the electrochemical and photoelectrochemical production of H2O2, discussing the fundamental mechanism, electrode design, and engineering strategies. It also addresses the obstacles and challenges of this process, as well as methods to enhance H2O2 production and efficiency.
Review
Multidisciplinary Sciences
Ha Huu Do, Soo Young Kim
Summary: Developing low-cost and stable materials for converting solar energy into electricity is crucial for meeting global energy demands. Metal-organic frameworks (MOFs) have attracted attention in solar cell research due to their porous structures and tunable chemical properties. This review explores the synthetic methods of MOFs and discusses their various roles and applications in solar cells.
Article
Chemistry, Multidisciplinary
Gaeun Park, Hyunki Kim, Gyeong Ho Han, Juho Ha, Jung Yong Seo, Minji Kang, Myung-gi Seo, Youngheon Choi, Soo Young Kim, Sang Hyun Ahn
Summary: Studies have shown a volcano-shaped trend between the Cu0-1+ ratio and the ability to form C2H4 in the CO2 reduction reaction. However, Cu-based oxidized cathodes exhibit poor stability in MEA-type cells.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Engineering, Electrical & Electronic
Myeong Jin Seol, Seung Hwan Hwang, Jeong Woo Han, Ho Won Jang, Soo Young Kim
Summary: The demand for sensors in various fields has grown, leading to the development of materials that can be attached to the body. Halide perovskite, with its excellent optoelectrical properties, is considered suitable for sensor applications. This study examines the research trends of halide perovskites to develop different types of sensors. While research has been conducted on gas sensors, little has been done on magnetic sensors. The feasibility of implementing five senses sensors is discussed by conducting extensive research on these sensors.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Analytical
Tae Hoon Eom, Sang Eun Lee, Yeong Jae Kim, Sungkyun Choi, Gi Baek Nam, Jung-El Ryu, Tae Hyung Lee, Jin Wook Yang, Sung Hwan Cho, Seung Ju Kim, Sang Eon Jun, Seonyong Lee, Seungsoo Kim, Hee Jung Park, Ho Won Jang
Summary: Chemoresistive humidity sensors based on ultrathin V2O5•nH2O nanobelts show promising performance in real-time breath monitoring, with rapid response and recovery, as well as excellent selectivity to humidity.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Inorganic & Nuclear
Wenwu Guo, Hyunki Kim, Seokjin Hong, Soo Young Kim, Sang Hyun Ahn
Summary: In this study, a NiMnS catalyst electrode with a unique hollow morphology and lattice-distorted structure was fabricated on Ti paper through one-step electrodeposition. The NiMnS/Ti electrode exhibited superior activity for the hydrogen evolution reaction and achieved high current density in an AEMWE single cell.
DALTON TRANSACTIONS
(2023)
