Article
Chemistry, Applied
Guannan Wang, Shaoyun Huang, Hui He, Jiawei Cheng, Tao Zhang, Zhiqiang Fu, Shasha Zhang, Yuzhi Zhou, Houbin Li, Xinghai Liu
Summary: Colorimetric sensing technology was used to monitor food freshness, showing that the sensor accurately reflects ammonia concentration and the freshness of Cod. Using a progress bar indicator can achieve non-destructive, more accurate, and commercially available food quality monitoring.
Article
Chemistry, Analytical
Ying Wang, Jingwen Li, Hongyu Liu, Xu Du, Limin Yang, Jingbin Zeng
Summary: Developed a sensor array with colorimetric and photothermal modes for the identification of multiple pathogenic bacteria. This array based on functionalized nanoparticles can differentiate each bacterium using linear discriminant analysis and show better differentiation compared to other sensing arrays. It can not only distinguish different bacteria but also perform preliminary discrimination of unknown samples.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Pattarachaya Preechakasedkit, Wattana Panphut, Atchara Lomae, Wanida Wonsawat, Daniel Citterio, Nipapan Ruecha
Summary: Foodborne illnesses caused by contaminated foods are a serious concern, and there is a need for sensitive and rapid detection methods of foodborne pathogens. In this study, a highly sensitive dual colorimetric/electrochemical detection approach using a laser-induced graphene-integrated lateral flow immunoassay strip was developed for Salmonella enterica serovar typhimurium (S. typhimurium). The strip showed superior performance with a short analysis time, a broad working concentration range, and the lowest detection limit compared to reported S. typhimurium detection schemes. The strip was successfully used for analysis of various food products without the need for bacterial enrichment or amplification.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Seungjoo Baek, Mohammed Iqbal Khazi, Jong-Man Kim
Summary: Chemical sensors based on stimulus-responsive chromogenic materials are important for their ability to manipulate optical properties and display vivid colors. In this study, a chromogenic poly-diacetylene (PDA) was generated through polymerization of protonated supramolecular assemblies of a diacetylene precursor. The PDA exhibited a blue color and showed a sensory response to ammonia, transitioning from blue to red and emitting fluorescence upon deprotonation. The self-assembly behavior, topochemical polymerization, and ammonia sensing properties were investigated using spectroscopic methods.
Article
Chemistry, Analytical
Mirim Ham, Soohyun Kim, Wonmok Lee, Hyunjung Lee
Summary: With the increase in demand for ready-to-cook foods, ensuring the freshness and safety of these foods has become a concern. This paper presents a printable sensor based on a hydrogel-containing pH indicator for detecting ammonia gas. The sensor, composed of biocompatible polymers, demonstrated visible color change as a function of ammonia concentration during food spoilage. By adding polyacrylonitrile to improve transport speed of ammonium ions, the sensor showed reproducibility and selectivity in detecting various gases during the food spoilage process.
Review
Chemistry, Analytical
Mohammad Amin Rashidi, Rezvan Zendehdel, Shahab Falahi, Soudabeh Ghodsi, Hori Ghaneialvar, Sajad Najafi
Summary: Ammonia has diverse applications but also poses harm to human health and the ecosystem. Colorimetric sensors, particularly those using green synthesized nanoparticles, offer a promising method for ammonia detection and analysis, with advantages such as high accuracy and low power consumption.
MICROCHEMICAL JOURNAL
(2024)
Article
Engineering, Electrical & Electronic
Jingjing Yu, Wei Ding, Laxmi Jaishi, Chenwen Lin, Rachel Boylan, Chinmay Chandrakant Dixit, Buddhi Sagar Lamsal, Wei He, Francis Tsow, Songxin Tan, Yue Zhou, Xiaojun Xian
Summary: Colorimetric gas sensors are widely used in hazardous gas detection, food freshness assessment, and gaseous biomarker identification due to their high sensitivity and selectivity, low cost, and good compatibility. However, their one-time discrete measurement design limits their application in continuous analytes monitoring. In this work, we proposed a novel sensor design to prolong the lifetime of colorimetric gas sensors by controlling the gas diffusion process. We compared two geometries and found that the 2-D gas diffusion geometry demonstrated better sensor performance.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Jian-Hang Yin, Mengxuan Liu, Chengwu Lan, Baiquan Chu, Lei Meng, Na Xu
Summary: In this study, a rapid, sensitive and selective detection strategy for catecholamine neurotransmitters was developed using a CuNCs-based colorimetric sensor array. The CuNCs were able to mimic catechol oxidase and catalyze catecholamine to corresponding quinones, resulting in detectable color changes.
ANALYTICA CHIMICA ACTA
(2023)
Article
Engineering, Electrical & Electronic
Samaneh Esmaeili, Mohammad Ali Zanjanchi, Hossein Golmojdeh, Shahab Shariati
Summary: Uniform micro-sized silica spheres coated with mesoporous shells were prepared using a sol-gel method, loaded with sensitive dyes to create a solid-state colorimetric gas sensor for ammonia detection. The sensor array showed an instantaneous response to low concentrations of ammonia gas and was able to detect a wide range of concentrations from 10 to 1000 ppm, with a detection limit of 0.6 ppm.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Applied
Haiying Liu, Yiran Zhang, Lu Huang, Mengyao Wang
Summary: We developed a colorimetric array sensor using filter paper (FPCAS) to detect fish freshness. The results showed that FPCAS can accurately distinguish fish freshness under commercial cold storage conditions and has the advantage of low cost.
Article
Chemistry, Analytical
Haotian Zhong, Yuting Xue, Pengyu Zhang, Bin Liu, Xin Zhang, Zhengbo Chen, Kai Li, Lirong Zheng, Xia Zuo
Summary: A colorimetric sensor array using nanozymes and natural enzymes was developed to discriminate eight different OPs through a cascade reaction system, successfully identifying them in tap water at a concentration of 1 ng mL(-1).
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Biochemical Research Methods
Jingzhou Hou, Xiaofang Liu, Changjun Hou, Danqun Huo, Jiawei Li
Summary: A polyvinylidene fluoride (PVDF)-based colorimetric sensor array was designed for rapid detection of disease-related volatile organic compounds (DVOCs). Using pattern recognition, the array successfully discriminated 28 DVOCs at different concentrations and showed excellent performance in detecting VOCs produced by cancer and normal cells.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chenwen Lin, Zijian Du, Nongjian Tao, Di Wang
Summary: The gradient-based colorimetric array sensor (GCAS) overcomes the limitations of traditional colorimetric sensors by inkjet-printing different colorimetric sensing elements on a porous substrate in parallel straight lines. By tracking color gradients and converting them into analyte concentrations in real time, GCAS can detect multiple air pollutants and continuously monitor ambient ozone.
Article
Chemistry, Analytical
Zahra Jafar-Nezhad Ivrigh, Arafeh Bigdeli, Somayeh Jafarinejad, Mohammad Reza Hormozi-Nezhad
Summary: In this study, a condition-based single component sensor array was proposed for the quantification and classification of antidepressants. By tuning the pH and ionic strength, the array achieved excellent sensitivity and selectivity in detecting the target analytes. The results of multivariate calibration and classification in human urine demonstrated the practicality of the array in complex biological fluids.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Yunyin Chen, Songtao Wang, Ying Hu, Hengye Chen, Haiyan Fu, Chunsong Zhou, Yuanbin She
Summary: This study developed a visual array sensor using noble metal nanoparticles to detect the four major groups of flavor compounds in baijiu, achieving good quantification with an optimized model. Results suggested that the sensor array can be used for the rapid detection of flavor compounds in actual baijiu samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Environmental
Ahreum Choi, Anh Tuan Hoang, Tran Thi Ngoc Van, Bonggeun Shong, Luhing Hu, Kean You Thai, Jong-Hyun Ahn
Summary: By introducing a buffer layer between graphene and the PR, residue-free patterned graphene can be obtained. The modified photolithography process allows complete removal of hardened PR and eliminates residues on the graphene surface. The new process shows promise for mass production of residue-free graphene electronics compatible with silicon-based nanosystems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Fuyou Liao, Zheng Zhou, Beom Jin Kim, Jiewei Chen, Jingli Wang, Tianqing Wan, Yue Zhou, Anh Tuan Hoang, Cong Wang, Jinfeng Kang, Jong-Hyun Ahn, Yang Chai
Summary: This study presents bioinspired vision sensors based on molybdenum disulfide phototransistors that mimic the adaptive behavior of human eyes. By introducing charge trap states, the photosensitivity of the devices can be dynamically modulated under different lighting conditions, providing highly localized and dynamic modulation of photosensitivity at the pixel level and creating an effective perception range of up to 199 dB.
NATURE ELECTRONICS
(2022)
Article
Nanoscience & Nanotechnology
Sumin Hwangbo, Luhing Hu, Anh Tuan Hoang, Jae Yong Choi, Jong-Hyun Ahn
Summary: This paper presents a novel fabrication method for the integration of transition metal dichalcogenides with compound semiconductors, which is compatible with a batch microfabrication process. The authors demonstrate the synthesis of a thin film of molybdenum disulfide on a gallium-nitride-based epitaxial wafer, which is then used to form a thin film transistor array. This transistor array is subsequently integrated with micro-light-emitting-diode devices to create an active matrix micro-LED display. The authors also show a simple approach for obtaining red and green colors through the printing of quantum dots on a blue micro-LED, enabling the scalable fabrication of full-color micro-LED displays.
NATURE NANOTECHNOLOGY
(2022)
Article
Chemistry, Analytical
Duc Cuong Nguyen, Trung Tuyen Bui, Si Hiep Hua, Hyungphil Chun, Yong Shin Kim
Summary: Durable bilayer-type actuators driven by airborne moisture were fabricated using natural bentonite nanoclay and a polyimide film. The actuators displayed a linear response to relative humidity and showed good selectivity and reproducibility. The bending of the actuators was attributed to the greater volume expansion and loss of stiffness in the nanoclay layer. These actuators were successfully applied to create various user-friendly hygrometer prototypes.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Multidisciplinary
Zhangfu Chen, Woohyun Hwang, Minhyun Cho, Anh Tuan Hoang, Minju Kim, Dongwoo Kim, Dong Ha Kim, Young Duck Kim, Hyun Jae Kim, Jong-Hyun Ahn, Aloysius Soon, Heon-Jin Choi
Summary: This study reports on the growth of GeS microribbons via CVT, which exhibit low-symmetry orthorhombic structure and anisotropic optical and electronic properties. The GeS microribbons show photoluminescence and anisotropic absorption effects, making them suitable for photoelectronic transistors.
NPG ASIA MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Trung Tuyen Bui, Duc Cuong Nguyen, Si Hiep Hua, Hyungphil Chun, Yong Shin Kim
Summary: This study presents a novel method for synthesizing magnetic core-shell nanocomposites for environmental applications. The method involves encapsulating magnetic Fe3O4 nanoparticles with microporous zeolitic imidazolate framework-8 (ZIF-8) nanocrystals through ultrasonic activation. The synthesized Fe3O4@ZIF-8 nanoparticles exhibit a core-shell structure and have high content of ZIF-8, combined with micro/mesoporosity. The functional nanomaterial can be used as adsorbents that are easily separated using a magnet, and show excellent adsorption performance for the removal of copper ions from water.
Article
Materials Science, Multidisciplinary
Zhangfu Chen, Anh Tuan Hoang, Dongjea Seo, Minhyun Cho, Young Duck Kim, Lianqiao Yang, Jong-Hyun Ahn, Heon-Jin Choi
Summary: Layered group IV monochalcogenides, including GeS in this study, have unique crystal structures and novel physical properties, making them promising materials for nanoscale electronic and electromechanical device applications. The chemical vapor transport synthesis of single-crystalline GeS nanoribbons was successfully demonstrated. The study found that increasing voltage led to more significant electrostrictive deformation and highly vertical current. The horizontal distribution of topography and current was found to be more inhomogeneous, and their monolithic spatial correlation weakened with increasing applied voltage. It was also discovered that electrostrictive deformation had a significant effect on the monolithic vertical resistance, and local hollow positions were more conductive than bulge positions.
Correction
Chemistry, Physical
Duong Duc La, Hoai Phuong Nguyen Thi, Yong Shin Kim, Anushri Rananaware, Sheshanath V. Bhosale
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Si Hiep Hua, Trung Tuyen Bui, Duc Cuong Nguyen, Yeong Beom Cho, Hyungphil Chun, Yong Shin Kim
Summary: In this study, a method for eye-readable hydrogen detection using a metal-organic framework membrane on the surface of a hydrogen-responsive pigment is reported. The method shortens the response time, increases the detection sensitivity, and significantly enhances the selectivity against potential interferents.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Zhangfu Chen, Anh Tuan Hoang, Woohyun Hwang, Dongjea Seo, Minhyun Cho, Young Duck Kim, Lianqiao Yang, Aloysius Soon, Jong-Hyun Ahn, Heon-Jin Choi
Summary: In this study, we report the growth of single crystalline GeS microribbons using the chemical vapor transport process. By using conductive atomic force microscopy, we demonstrate that the conductive behavior in the vertical direction is mainly affected by the Schottky barriers between GeS and both electrodes. We also find that the topographic and current heterogeneities are significantly different with and without illumination.
Article
Nanoscience & Nanotechnology
Larionette P. L. Mawlong, Anh Tuan Hoang, Jyothi Chintalapalli, Seunghyeon Ji, Kihyun Lee, Kwanpyo Kim, Jong-Hyun Ahn
Summary: This study introduces a new method for synthesizing large-area, high-quality two-dimensional transition metal dichalcogenides, such as MoS2. The method improves the performance of photodetectors and reduces sulfur vacancy defects in the film, which significantly affects material quality.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Anh Tuan Hoang, Luhing Hu, Beom Jin Kim, Tran Thi Ngoc Van, Kyeong Dae Park, Yeonsu Jeong, Kihyun Lee, Seunghyeon Ji, Juyeong Hong, Ajit Kumar Katiyar, Bonggeun Shong, Kwanpyo Kim, Seongil Im, Woon Jin Chung, Jong-Hyun Ahn
Summary: Recent advancements in two-dimensional semiconductors, such as molybdenum disulfide (MoS2), have allowed for the production of flexible electronic devices that possess excellent mechanical flexibility. This study presents a novel approach for synthesizing high-quality MoS2 monolayers directly on flexible substrates, eliminating the need for transfer processes that degrade the material's electronic properties.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Ji-Hoon Kang, Heechang Shin, Ki Seok Kim, Min-Kyu Song, Doyoon Lee, Yuan Meng, Chanyeol Choi, Jun Min Suh, Beom Jin Kim, Hyunseok Kim, Anh Tuan Hoang, Bo-In Park, Guanyu Zhou, Suresh Sundaram, Phuong Vuong, Jiho Shin, Jinyeong Choe, Zhihao Xu, Rehan Younas, Justin S. Kim, Sangmoon Han, Sangho Lee, Sun Ok Kim, Beomseok Kang, Seungju Seo, Hyojung Ahn, Seunghwan Seo, Kate Reidy, Eugene Park, Sungchul Mun, Min-Chul Park, Suyoun Lee, Hyung-Jun Kim, Hyun S. Kum, Peng Lin, Christopher Hinkle, Abdallah Ougazzaden, Jong-Hyun Ahn, Jeehwan Kim, Sang-Hoon Bae
Summary: This study demonstrates the application of fully monolithic 3D integration technology based on 2D materials in the performance of artificial intelligence tasks.
Article
Chemistry, Multidisciplinary
Seunghyeon Ji, Sa-Rang Bae, Luhing Hu, Anh Tuan Hoang, Myeong Jin Seol, Juyeong Hong, Ajit Kumar Katiyar, Beom Jin Kim, Duo Xu, Soo Young Kim, Jong-Hyun Ahn
Summary: This study presents a fabrication method for an active-matrix PeLED display, achieved through the heterogeneous integration of perovskite light-emitting diodes with MoS2 TFTs. The display exhibits excellent brightness control capability and high switching speed, showcasing the potential of PeLEDs as candidates for next-generation displays.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Anh Tuan Hoang, Luhing Hu, Ajit Kumar Katiyar, Jong-Hyun Ahn
Summary: Two-dimensional materials possess unique properties that make them suitable for the production of flexible electronic devices. This perspective presents the recent progress in the field of 2D material-based flexible electronic and optoelectronic applications, including wearable displays and sensors. Additionally, it discusses the opportunities, challenges, potential solutions, and future development directions in this area.
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
