Article
Materials Science, Multidisciplinary
Maria Ivanovskaya, Evgeni Ovodok, Tatiana Gaevskaya, Dzmitry Kotsikau, Valentina Kormosh, Vitaliy Bilanych, Matej Micusik
Summary: The study investigated the influence of nanosized gold state on the adsorption-sensitive properties of tin dioxide under CO, CH4, and C2H5OH vapor detection. It was found that adding gold colloidal particles with sizes ranging from 1.9-3.5 nm can enhance sensor response, with different sensitivities observed for different gases in SnO2-Au composite materials.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Analytical
Jihyun Lee, Hyegi Min, Yong-Sahm Choe, Yun Gyu Lee, Kichul Kim, Hyun-Sook Lee, Wooyoung Lee
Summary: This study reports the high performance of Au-coated SnO2 nanorod gas sensors for detecting hazardous indoor volatile organic compounds. By optimizing the Au thickness and integrating the sensor into a miniaturized gas chromatography system, various gases can be selectively detected with ppb-level concentration measurements. The results demonstrate the potential of Au-coated SnO2 nanorod gas sensors integrated with GC as a facile indoor pollutant monitoring system.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Physics, Multidisciplinary
Ruixin Chen, Longbin Yan, Long Lin, Chao Deng, Zhanying Zhang
Summary: This study investigates the coadsorption of CO and CH4 molecules on metal atom doped SnO2 surface using first principle methods. The results show that the Au/SnO2 surface has excellent adsorption performance for CO and CH4 molecules, with a stronger affinity for CO. The research suggests that Au/SnO2 is a potential CO sensor material.
Article
Materials Science, Multidisciplinary
Yizhi Chen, Zhihua Wang, Huifen Fu, Dongmei Han, Fubo Gu
Summary: In this work, Au nanoparticles on ZnO nanoflowers were prepared with different sizes by changing the solvents used, resulting in improved TEA-sensing properties. The sensor with smaller Au size exhibited higher response and selectivity towards TEA, due to the enhanced electron transfer and conversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Analytical
Myung Sik Choi, Ali Mirzaei, Han Gil Na, Sangwoo Kim, Dong Eung Kim, Kyu Hyoung Lee, Changhyun Jin, Sun-Woo Choi
Summary: This study proposed a method to enhance the gas sensing properties of metal oxide nanowires by preparing Pd metal catalyst surrounded by SnO2-x with structural defects on the surface of SnO2 nanowires. Gas sensing studies demonstrated the promising effects of this approach, showing the usefulness of significantly enhancing the gas sensing properties.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Julia Fernandez-Vidal, Ana M. Gomez-Marin, Leanne A. H. Jones, Chih-Han Yen, Tim D. Veal, Vinod R. Dhanak, Chi-Chang Hu, Laurence J. Hardwick
Summary: Au-SnO2 is demonstrated to be a more durable shell-isolated nanoparticle (SHIN) for enhanced Raman spectroscopy (SHINERS), showing long-life Raman enhancement for 3 months and wide pH stability from pH 2-13.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Min Liu, Yongling Ding, Qi Wang, Peng Song
Summary: In this paper, Au/In2S3 nanocomposites were grown directly on Al2O3 ceramic tubes by hydrothermal method, which exhibited prominent selectivity for triethylamine (TEA). The optimized operating temperature for Au/In2S3 nanocomposites was reduced to 160 degrees C, and the response was significantly improved due to the spillover effect and catalysis of Au nanoparticles. The sensing mechanism was explained through density functional theory (DFT) calculations and analysis of adsorption energy and electron behavior.
Article
Chemistry, Analytical
Ji Li, Ming Yang, Yangyang Li, Xiaoli Cheng, Xianfa Zhang, Yingming Xu, Shan Gao, Hui Zhao, Lihua Huo
Summary: In this study, SnO2 nanoneural network material composed of ultrasmall SnO2 nanoparticles was successfully obtained and demonstrated excellent sensing performance for NO2 gas detection at low temperature. The material had a large specific surface area and high response, and also exhibited moisture resistance and long-term stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Dong Jae Yu, Wansik Oum, Ali Mirzaei, Ka Yoon Shin, Eun Bi Kim, Hyeong Min Kim, Sang Sub Kim, Hyoun Woo Kim
Summary: We synthesized pristine SnO2 nanoparticles and Au@SnO2 core-shell nanocomposites for xylene gas sensing. The Au@SnO2 core-shell nanocomposites showed better response and selectivity compared to the pristine SnO2 nanoparticles, demonstrating the promising effects of the Au@SnO2 core-shell structure for xylene sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Yunxia He, Lin Tao, Jing Li, Mingjie Wu, Preeyaporn Poldorn, Davoud Dastan, Sedigheh Abbasi, Shuai Nie, Xitao Yin, Qi Wang
Summary: Chemical resistive gas sensors based on p-n heterojunctions have been proven to provide reliable gas selectivity, but the effects of heterojunctions on sensor selectivity are still unclear. In this study, SnO2(100)/ CoO(110) and CoO(110)/ SnO2(100) nanomaterials were synthesized to investigate their sensing properties for H2 and CO gases. The results showed that the heterojunctions exhibit an n-type response to CO and a p-type response to H2 based on adsorption energy and density of states analysis. The study provides valuable theoretical insight into the selective adsorption of reducing gases by heterojunctions.
MATERIALS TODAY NANO
(2023)
Article
Chemistry, Physical
Lulu Guo, Zhen Shen, Chunhui Ma, Chunqiang Ma, Jiaqi Wang, Tingxun Yuan
Summary: In this study, high-performance acetone sensors based on Au nanoparticle-loaded SnO2 porous nanosheets were successfully synthesized. The Au-SnO2 sensor exhibited higher response, selectivity, and faster response/recovery time compared to pristine SnO2. It also demonstrated the ability to detect low concentrations of acetone.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Swapnali B. Dhage, Vithoba L. Patil, Pramod S. Patil, Jungho Ryu, Deepak R. Patil, Yuvraj S. Malghe
Summary: CuO-SnO2 nanocomposites were successfully synthesized and studied for their potential as CO gas sensors. The thermal stability and gas sensitivity of the nanocomposites were confirmed, showing excellent repeatability and sensitivity towards CO gas. The XRD results indicated pure phase formation of CuO-SnO2 heterostructure with a band-gap of 2.63 eV.
Article
Nanoscience & Nanotechnology
Jiawen Shi, Sen Liu, Peng Zhang, Ning Sui, Shuang Cao, Tingting Zhou, Tong Zhang
Summary: The study showed that doping Pd and Sb into SnO2 nanoparticles can significantly reduce sensor resistance while improving sensitivity in methane detection. The sensors exhibited excellent performance including high response, fast response/recovery time, good reproducibility, and stability, attributed to the synergistic effects of novel metals, increased oxygen vacancies, and decreased band gap energy. This research provides a new opportunity to design metal oxide gas sensors with low resistance and high sensitivity.
Article
Chemistry, Physical
Feng Hong, Guanjian Cheng, Weihao Hu, Shengyang Wang, Qike Jiang, Junhong Fu, Botao Qiao, Jiahui Huang
Summary: Gold-based catalysts have shown promise for CO preferential oxidation (CO-PROX) reaction in H-2-rich streams due to their high intrinsic activity for CO elimination even at room temperature. However, the competition of H-2 oxidation and the low stability of gold nanoparticles have limited the CO conversion at elevated temperatures. In this study, a Au-Cu bimetallic catalyst prepared by galvanic replacement method was found to exhibit a wide temperature window for CO total conversion (30-100 degrees C) and excellent catalyst stability without deactivation during a 200-hour test. Detailed characterizations and density functional theory (DFT) calculations revealed that the synergistic effect of Au-Cu and the electron transfer from Au to Cu enhanced the chemisorption of CO and weakened the dissociation of H-2, inhibiting the competition of H-2 oxidation and widening the temperature window for CO total conversion.
Article
Chemistry, Physical
Ying Liu, Qianqian Xu, Lihang Chen, Changhua Song, Qiwei Yang, Zhiguo Zhang, Dan Lu, Yiwen Yang, Qilong Ren, Zongbi Bao
Summary: This work presents two hydrogen-bonded metal-nucleobase frameworks capable of efficiently separating C3H8/CH4, C2H6/CH4, and CH4/N-2. The frameworks exhibit strong affinity for C3H8 and C2H6, and show excellent performance in CH4 adsorption and CH4/N-2 selectivity. These findings are of great importance for natural gas upgrading and the concentration of low-quality coalbed methane.
Article
Pharmacology & Pharmacy
N. Ghanbari, Z. Salehi, A. A. Khodadadi, M. A. Shokrgozar, A. A. Saboury, F. Farzaneh
Summary: In this study, Tryptophan-conjugated graphene quantum dots (Trp-GQDs) loaded with Curcumin (Cur) as an anticancer agent were successfully fabricated and evaluated for their drug loading capacity, release kinetics, and cytotoxicity on human breast cancer cells. The nano-assemblies showed high drug loading capacity, pH-sensitive release, and non-toxicity on MCF-7 cells, indicating their potential as promising candidates for drug delivery applications.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Reza Khaleghi Abasabadi, Abbas Ali Khodadadi, Yadollah Mortazavi
Summary: The study explores the impact of different types of carbon-nitrogen bonds on the activity and selectivity of the palladium active phase in the hydrogenation of cinnamaldehyde. Pyridinic nitrogen has a positive effect on the uniform distribution of Pd. The catalyst treated at 500 degrees Celsius shows high conversion and selectivity in the reaction.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Engineering, Chemical
Sahar Vahdatifar, Abbas Ali Khodadadi, Yadollah Mortazavi, Lauren F. Greenlee
Summary: This research investigated the effect of functionalization on the performance of vertically aligned carbon nanotubes/polystyrene membranes. Different functional groups were attached to the nanotubes and their impact on water permeance and salt exclusion was studied. The results supported the Donnan exclusion mechanism and highlighted the role of carboxyl and amide groups in ion rejection characteristics of the membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Samaneh Sohrabi, Reza Khaleghi Abasabadi, Abbas Ali Khodadadi, Yadollah Mortazavi, Ali Hoseinzadeh
Summary: Palladium nanoparticles highly dispersed into UiO-66 as an efficient and selective hydrogenation catalyst were synthesized by a one-step in-situ method. The catalyst exhibited high catalytic performance in the hydrogenation of furfural, with high conversion and selectivity.
MOLECULAR CATALYSIS
(2021)
Article
Engineering, Chemical
Mijin Kim, Jens-Uwe Repke, Reinhard Schomaecker, Abbas Ali Khodadadi, Guenter Wozny, Oliver Goerke, Hamid Reza Godini
Summary: A pseudo-homogeneous model was used to represent the thermal reaction performance of an oxidative coupling of methane (OCM) packed-bed catalytic reactor, taking into account the axial and radial heat and mass transfer characteristics. The model-based analysis was supported by extensive experimentation, aiming to differentiate the direct contribution of catalytic reactions and indirect contribution of the reactor's structural characteristics on the overall OCM reactor performance.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Thermodynamics
Mohammad Saleh Khodaparasti, Mohammad Reza Shirazvatan, Omid Tavakoli, Abbas Ali Khodadadi
Summary: Co-pyrolysis of microalgae Chlorella vulgaris and municipal sewage sludge was studied in a fixed-bed reactor to investigate the effects of temperature, mixing ratio, and Argon flow rate on pyrolysis products. The process was optimized using response surface methodology, and artificial neural network models were developed to simulate and predict pyrolysis yields. The study found that the mixing ratio had the most significant impact on bio-oil yield, while temperature had the highest influence on both biochar and biogas efficiency. The results demonstrate the potential for co-pyrolysis of microalgae and sewage sludge as a sustainable waste-to-energy conversion process.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Environmental Sciences
Zahra Eshaghi Gorji, Abbas Ali Khodadadi, Siavash Riahi, Timo Repo, Yadollah Mortazavi, Marianna Kemell
Summary: In this study, a series of organic compounds were immobilized on N-doped graphene quantum dots to prepare a multifunctional organocatalyst for the coupling reaction between CO2 and propylene oxide. The proposed catalysts demonstrated high activity and yielded excellent results under optimal conditions.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Physical
Fatemeh Gashoul Daresibi, Abbas Ali Khodadadi, Yadollah Mortazavi, Simo Huotari, Mikko Ritala
Summary: This study focuses on the CO2-oxidative dehydrogenation of propane (CO2-ODHP) using CrOx/SiO2 catalyst synthesized through atomic layer deposition (ALD) technique. The ALD catalysts exhibited higher acidity and reducibility compared to impregnation catalysts, as well as better dispersion of chromium oxide particles. The CO2-ODHP reactions using the ALD catalysts demonstrated improved propane conversion and propylene yield.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Analytical
Mehrdad Asgari, Fahimeh Hooriabad Saboor, Seyed Parsa Amouzesh, Martin Watt Coull, Abbas Ali Khodadadi, Yadollah Mortazavi, Takeo Hyodo, Yasuhiro Shimizu
Summary: SiO2/ZnO core/shell sensors were synthesized using ultrasonic-assisted deposition-precipitation method. The addition of silica as the core material enhanced the selectivity, stability, and reversibility of the sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Fatemeh Gashoul Daresibi, Abbas Ali Khodadadi, Yadollah Mortazavi
Summary: Ga2O3 was synthesized on a gamma-Al2O3 support using the atomic layer deposition method (ALD) for the CO2-oxidative dehydrogenation of propane (CO2-ODHP). The Ga loading was controlled by the number of ALD cycles, ranging from 1 to 2.9 wt%. The ALD catalysts exhibited higher activity and selectivity in the CO2-ODHP reaction compared to catalysts prepared with impregnation method, attributed to the higher surface total moderate acidity, Ga-O-Al linkages, and Ga2O3 dispersion. The ALD-3C catalyst, with 2.9% Ga loading, achieved 38% conversion and 82% selectivity to propylene after 120 minutes of CO2-ODHP reaction at 600 degrees Celsius, corresponding to a 96% improvement in propylene yield.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Hamide Mohammad Aliha, Abbas Ali Khodadadi, Yadollah Mortazavi, Mohammad Nader Lotfollahi
Summary: The aim of this study is to investigate a new method of fabricating SnO2/polyaniline (PAni) nanocomposite sensors for detecting ammonia at room temperature. The synthesis of PAni is conducted through oxidative polymerization, and SnO2/PAni hybrid nanocomposites with varying percentages of polymer are fabricated using a deposition-precipitation method in the presence of SnCl4 solution. XRD, BET, FTIR, Raman, TGA, and FESEM tests are carried out to characterize the produced powders. The results show that increasing the PAni content in the nanocomposites leads to a decrease in SnO2 crystallite size, an increase in surface area, and improved thermal stability. The SnO2/8 wt% PAni exhibits the highest sensitivity, with a response of approximately 187% for 100 ppm NH3 at room temperature. The optimal heteronucleation and decoration of SnO2 on the PAni surface enhance the sensor's response. Additionally, the sensor demonstrates selectivity in the presence of interfering gases such as CO, ethanol, methane, toluene, and trichloroethylene.
APPLIED SURFACE SCIENCE
(2023)
Article
Business
Mohammad Saleh Khodaparasti, Reza Khorasani, Omid Tavakoli, Abbas Ali Khodadadi
Summary: The effect of co-pyrolysis of municipal sewage sludge (MSS) and microalgae Chlorella Vulgaris (MCV) on pyrolysis products and synergistic effects was investigated. Changes in gas components at different temperatures and reaction times were analyzed using GC analysis. The co-pyrolysis bio-oil was found to be rich in fatty acids and amides compounds, providing a new direction for the high value-added utilization of biomass.
JOURNAL OF BUSINESS RESEARCH
(2023)
Article
Chemistry, Physical
S. Samaneh Bahrani, Abbas Ali Khodadadi, Yadolah Mortazavi
Summary: It has been found that selective deposition of NiO on MoOx/?-Al2O3 enhances the formation of active NiMoS catalytic phase, leading to improved hydrodesulfurization activity. Catalysts prepared by selective atomic layer deposition (S-ALD) showed higher desulfurization conversions at lower reaction temperatures and pressures compared to those prepared by impregnation. HR-TEM and XPS characterization revealed that the enhanced activity of S-ALD catalysts is attributed to the formation of more active NiMoS catalytic phase with higher sulfidability than their impregnation counterparts.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Nasim Afzali, Mostafa Torka Beydokhti, Abbas Ali Khodadadi, Yadollah Mortazavi
Summary: In this study, flower-like Ni-doped SnS2 was synthesized using a hydrothermal method, and its oxidation extent was controlled by air oxidation. The results showed that partial oxidation increased the surface area of SnS2 and enhanced its photocatalytic activity. Tuning the oxidation extent and Ni doping can regulate the band gap and defect recombination rate of heterostructures. The Ni-doped 0.34 wt% SnS2 with 43% oxidation showed the highest photocatalytic conversion.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
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)