Article
Chemistry, Physical
Joo Won Han, Jihyun Park, Jung Ha Kim, Siti Aisyah Nurmaulia Entifar, Ajeng Prameswati, Anky Fitrian Wibowo, Soyeon Kim, Dong Chan Lim, Jonghee Lee, Myoung-Woon Moon, Min-Seok Kim, Yong Hyun Kim
Summary: In this study, highly stretchable and conductive composite films based on CMC-PEDOT:PSS were fabricated by optimizing the content of PEDOT:PSS, dimethyl sulfoxide, and glycerol. The composite films exhibited excellent electrical and mechanical properties and were used to fabricate on-skin sensors for monitoring bio-signals and human motions with low power consumption.
Article
Chemistry, Physical
Chenyang Zhang, Mingxu Wang, Conghui Jiang, Peizhi Zhu, Baoquan Sun, Qiang Gao, Chunxia Gao, Ruiyuan Liu
Summary: In this study, a hybrid conductive hydrogel consisting of PGA and PEDOT:PSS was developed, which exhibited good biocompatibility, flexibility, and conductivity. The hydrogel showed adhesive performance and self-healing abilities due to multiple hydrogen bonding interactions.
Article
Nanoscience & Nanotechnology
Minji Kim, Seung Yeob Lee, Jihyun Kim, Changwon Choi, Yves Lansac, Hyungju Ahn, Sohee Park, Yun Hee Jang, Seoung Ho Lee, Byoung Hoon Lee
Summary: Inspired by the classic hard-soft acid-base theory, this study introduces a new ionic liquid to treat PEDOT:PSS and achieves similar levels of ion-exchange and stretchability enhancement compared to the best existing ionic liquid.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Huijun Chen, Huimin Xu, Mengying Luo, Wen Wang, Xing Qing, Ying Lu, Qiongzhen Liu, Liyan Yang, Weibing Zhong, Mufang Li, Dong Wang
Summary: In this study, a highly conductive, ultrastrong, and flexible PEDOT:PSS/EMIM:DCA fiber was prepared by wet-spinning and subsequent sulfuric acid-immersion-drawing process. The fiber exhibited excellent properties such as high tensile strength and low Young's modulus, which were attributed to the removal of PSS and high crystallinity and orientation of PEDOT. Various flexible and wearable electronic devices were constructed based on the P/ED fiber.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Peng Wang, Yong Wang, Qingbo Xu, Qian Chen, YanYan Zhang, Zhenzhen Xu
Summary: Conductive cotton fabrics are widely used in electromagnetic shields and soft sensors due to their softness and comfort. However, the conventional methods of preparing conductive cotton fabrics often result in the detachment and fracture of conductive coatings, leading to a decline in their conductivity. In this study, L-cysteine was used as a binder to immobilize silver nanoparticles on cotton fabric, and PEDOT:PSS was applied to prevent them from falling off and cracking. The resulting fabric exhibited high electrical conductivity and electromagnetic shielding effectiveness, with improved durability.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Anky Fitrian Wibowo, Joo Won Han, Jung Ha Kim, Ajeng Prameswati, Siti Aisyah Nurmaulia Entifar, Jihyun Park, Jonghee Lee, Soyeon Kim, Dong Chan Lim, Myoung-Woon Moon, Min-Seok Kim, Yong Hyun Kim
Summary: Researchers have developed a highly stretchable, conductive, and transparent natural rubber/silver nanowire/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) composite film for wearable sensors. The film exhibits excellent mechanical and chemical stability, making it suitable for monitoring human motion and biological signals.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Nujud Mohammad Badawi, Khalid Mujasam Batoo, S. Ramesh, K. Ramesh, Ahamad Imran
Summary: In this study, the effects of single-wall carbon nanotubes (SWCNT)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) loading on the transparency and conductivity of pure cotton were investigated. The cotton fabric exhibited a low surface resistance and retained its maximum resistance even after three months. The results from various characterization techniques confirmed the good dispersion of SWCNTs/PEDOT: PSS in the cotton sample. Furthermore, the composite cotton/hydrogel polymer/composite cotton showed high specific capacitance and thermal stability.
Article
Materials Science, Multidisciplinary
Songsong Tang, Xujing Zhang, Juncheng Fan, Boxiao Li, Zhen Li, Cheng Wang, Hui Li, Peng Zhang, Jian Zhou
Summary: Cellular structural conductive polymer aerogels were fibrillated through post vapor annealing technique and a functional copolymer, polyethylene-block-poly (ethylene glycol) (PBP), leading to improved flexibility and electrical conductivity. These fibrillated conductive polymer aerogels were used as crucial elements in strain sensors and triboelectric nanogenerators.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Multidisciplinary
Kazuki Ueda, Riku Fukuzaki, Takumu Ito, Nana Toyama, Masahiro Muraoka, Toshiki Terao, Kei Manabe, Tomoyasu Hirai, Ching-Ju Wu, Shih-Ching Chuang, Shintaro Kawano, Michihisa Murata
Summary: This study designed and synthesized an organometallic nickel complex containing thieno[3,2-b]thiophene units. Composite films of the nickel complex and polyvinylidene difluoride, prepared via a simple solution process, exhibited remarkably high n-type conductivity and air stability of the thermoelectric power factor. The introduction of thieno[3,2-b]thiophene core into the backbone of the nickel complex significantly influenced the orientation within the composite films, as indicated by grazing-incidence wide-angle X-ray diffraction analysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Qiang Gao, Yuhang Wang, Peng Wang, Ming Shen, Tangsuo Li, Chunxia Gao, Jiadeng Zhu
Summary: Highly conductive and stretchable PEDOT:PSS fibers were successfully achieved by incorporating urea and soluble copper salts, which not only enhanced their electroconductivity and stretchability, but also provided long-term stability. The obtained fibers exhibited fast response time and ultra-low detection limit, showing potential applications for wearable electronic textiles.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Polymer Science
In Su Jin, Jea Uk Lee, Jae Woong Jung
Summary: The solution treatment of PEDOT:PSS-coated textiles with DMSO and methanol enhanced crystallization of PEDOT chains, improved contact with fibers, and effectively removed the insulating PSS part, resulting in highly conductive textiles with reduced sheet resistance. The conductive textiles achieved a maximum temperature of 133 degrees C within 20 seconds at a low applied voltage of 3 V, showing promise for multi-functional wearable heater applications.
Article
Nanoscience & Nanotechnology
Lihui Liu, Hao Yang, Zhongjin Zhang, Yun Wang, Junxian Piao, Yujun Dai, Bo Cai, Wei Shen, Kun Cao, Shufen Chen
Summary: A photopolymerizable additive is proposed to improve the photopatternability and conductivity of PEDOT:PSS electrodes. The treated PEDOT:PSS electrodes exhibit excellent conductivity and brightness in flexible PeLEDs. This study provides a facile and effective method for patterning and improving the conductivity of PEDOT:PSS electrodes, demonstrating their great potential in flexible perovskite optoelectronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Anand Dev Ranjan, Rakesh Sen, Rahul Vaippully, Sumeet Kumar, Soumya Dutta, Basudev Roy, Goutam Dev Mukherjee, Soumyajit Roy, Ayan Banerjee
Summary: The engineering of interfaces is crucial in determining the fundamental properties of matter, and microbubble lithography (MBL) is a method that enables interface engineering. By using MBL to create patterned interfaces of a polymer, the conductivity of the polymer can be greatly enhanced, especially on a flexible PDMS substrate.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Ji Liu, James Garcia, Liam M. M. Leahy, Rijian Song, Daragh Mullarkey, Ban Fei, Adrian Dervan, Igor V. V. Shvets, Plamen Stamenov, Wenxin Wang, Fergal J. J. O'Brien, Jonathan N. N. Coleman, Valeria Nicolosi
Summary: Direct ink writing (DIW) is a viable 3D printing technology for custom production of functional conductive hydrogels. This study demonstrates a highly 3D printable PEDOT:PSS-based ink made from commercially accessible raw materials. The 3D-printed hydrogel exhibits high electrical conductivity, outstanding elasticity, stability in water, electromagnetic interference shielding, sensing capabilities, and biocompatibility, showing potential for implantable and tissue engineering applications. The fabrication strategy opens up new opportunities to create multifunctional hydrogels with custom features and expand the applications of hydrogel materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chan Young Kim, Jun Ho Myung, Jeong-Yun Sun, Woong-Ryeol Yu
Summary: A polymer component in immiscible polymer blends leads to phase separation, resulting in different polymer morphologies depending on the weight ratio. This study demonstrates that a low weight fraction of a polymer component can form a continuous matrix phase, which is novel. Coating a solution of PEDOT:PSS blended with a high fraction of PDMS and a surfactant results in a continuous PEDOT:PSS matrix with spherical PDMS islands. The electrodes show excellent conductivity and stretchability, high transparency, and electromechanical stability.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Analytical
Saja Haj-Bsoul, John R. Varcoe, Dario R. Dekel
Summary: One significant barrier in developing durable anion-exchange membranes for fuel cells and water electrolyzers is their limited chemical stability to alkali. The commonly used ex-situ tests do not adequately simulate the actual operando conditions, yielding misleading degradation rates. The study introduces a unique ex-situ method for determining the alkaline stability of AEMs under in-situ operating environments and provides stability trends for various AEM compositions.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Fabrizia Foglia, Quentin Berrod, Adam J. Clancy, Keenan Smith, Gerard Gebel, Victoria Garcia Sakai, Markus Appel, Jean-Marc Zanotti, Madhusudan Tyagi, Najet Mahmoudi, Thomas S. Miller, John R. Varcoe, Arun Prakash Periasamy, Daniel J. L. Brett, Paul R. Shearing, Sandrine Lyonnard, Paul F. McMillan
Summary: Semipermeable polymeric anion exchange membranes play a vital role in energy conversion technologies. Understanding and controlling the interactions between relaxation and diffusional processes in these membranes is a main scientific challenge. Quasi-elastic neutron scattering has been used to analyze commercially available membranes, revealing the dynamics of water, polymer relaxation, and OH- diffusion.
Article
Chemistry, Physical
Jimodo J. Ogada, Adewale K. Ipadeola, Patrick Mwonga, Aderemi B. Haruna, Forrest Nichols, Shaowei Chen, Hamish A. Miller, Maria Pagliaro, Francesco Vizza, John R. Varcoe, Debora Motta Meira, Daniel M. Wamwangi, Kenneth Ozoemena
Summary: This study discussed the preparation and characterization of Pd-based catalysts containing ceria on carbon supports, highlighting the enhanced electrocatalytic properties of Pd-CeO2/OLC for the hydrogen oxidation reaction. The results suggest that Pd-CeO2/OLC could serve as a high-performing and durable anode material for anion-exchange-membrane fuel cells.
Article
Chemistry, Analytical
Holly-May Lewis, Priyanka Gupta, Kyle D. G. Saunders, Shazneil Briones, Johanna von Gerichten, Paul A. Townsend, Eirini Velliou, Dany J. V. Beste, Olivier Cexus, Roger Webb, Melanie J. Bailey
Summary: This work presents a new approach for measuring drug levels and lipid fingerprints in individual living mammalian cells. The method combines nanocapillary sampling with liquid chromatography to improve precision in drug analysis. By optimizing the transfer of analytes from the sampling capillary, the researchers achieved efficient measurement of drug analytes in 30 living cells. They also discovered cell-to-cell heterogeneity in drug molecule uptake and identified lipid features associated with bedaquiline uptake.
Article
Chemistry, Multidisciplinary
Carlos A. Giron Rodriguez, Bjort Oladottir Joensen, Asger Barkholt Moss, Gaston O. Larrazabal, Daniel K. Whelligan, Brian Seger, John R. . Varcoe, Terry R. Willson
Summary: The performance of zero-gap CO2 electrolysis (CO2E) depends on the membrane's chemical structure and physical properties. Radiation-grafted anion-exchange membranes (RG-AEM) show high ionic conductivity and durability, making them a promising alternative for CO2E. The thinner 25μm-based AEM with the MPIP-headgroup provided better CO2E efficiency in terms of lower cell potentials, high CO selectivity, reduced liquid product crossover, and enhanced water management.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Sapir Willdorf-Cohen, Avital Zhegur-Khais, Julia Ponce-Gonzalez, Saja Bsoul-Haj, John R. Varcoe, Charles E. Diesendruck, Dario R. Dekel
Summary: Recently, there has been increased interest in the development of durable anion-exchange membrane fuel cells (AEMFCs) due to their potential to use low-cost, sustainable components. However, the decomposition of the quaternary ammonium (QA) cationic groups in the anion-exchange membranes (AEMs) during cell operation remains a challenge. In this study, a reliable ex situ technique using Raman spectroscopy was developed to measure the alkaline stability of insoluble AEMs. The results showed that the stability of different AEMs could be accurately measured alongside changes in their conductivity and ion-exchange capacities. This work provides valuable insights for the design and development of stable AEMs for fuel cells and water electrolyzers.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Food Science & Technology
Melina Kitsiou, Lisa Purk, Jorge Gutierrez-Merino, Kimon Andreas Karatzas, Oleksiy V. Klymenko, Eirini Velliou
Summary: Concerns about the role of antimicrobial resistance (AMR) in disease outbreaks are increasing due to excessive antibiotic use. Consumers demand minimally processed and sustainably produced food products without chemical preservatives or antibiotics. Grape seed extract (GSE), a natural antimicrobial derived from wine waste, was found to be highly effective against Listeria monocytogenes, but less effective against Escherichia coli and Salmonella Typhimurium. The study provides a quantitative and mechanistic understanding of GSE's impact on foodborne pathogens, assisting in the design of natural antimicrobial-based strategies for sustainable food safety.
Article
Electrochemistry
Jingyi Wang, Terrence R. Willson, Sven Brueckner, Daniel K. Whelligan, Chunning Sun, Liang Liang, Xingli Wang, Peter Strasser, John Varcoe, Wen Ju
Summary: Deploying single-site NiNC catalysts in cathode catalyst layers enables efficient and high-yield catalytic conversion of CO2 to e-CO in limited space. The performance of the cathode layers is controlled by the turnover frequency and mass transfer characteristics of the active sites. This study designed, built, and tested NiNC catalyst layers using distinct ion exchange ionomer materials and correlated their performance with reactivity and stability in full single MEA electrolyzer cells. The Sustainion anion exchange ionomer showed the best performance, achieving 90% CO faradaic efficiency at 200 mA cm-2 and stable performance for 15 hours. The favorable electrolyzer performance was attributed to its balanced conductivity and hydrophobicity, ensuring excellent ion and CO2 transfer rates even at high current densities.
ELECTROCHIMICA ACTA
(2023)
Review
Cardiac & Cardiovascular Systems
Elisa Avolio, Paola Campagnolo, Rajesh Katare, Paolo Madeddu
Summary: Millions of cardiomyocytes die immediately after myocardial infarction, regardless of revascularization. Residual ischaemia in the peri-infarct zone causes further damage and a decline in function. Pericytes have crucial roles in angiogenesis, scar formation, inflammation control, and can be the target of various therapies to restore the perivascular niche after myocardial infarction.
NATURE REVIEWS CARDIOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Joydip Ghosh, Joseph O'Neill, Mateus G. Masteghin, Isabel Braddock, Carol Crean, Robert Dorey, Hayden Salway, Miguel Anaya, Justin Reiss, Douglas Wolfe, Paul Sellin
Summary: We developed a simple and efficient method to synthesize highly luminescent CsPbBr3 nanocrystals and investigated their scintillation properties. The addition of a small amount of surfactant oleylamine played a crucial role in controlling the size and emission properties of the nanocrystals. The resulting perovskite nanocrystals exhibited high photoluminescence quantum yield and stability. We also prepared CsPbBr3 nanocrystal-loaded polymer composites and studied their emission properties, showing potential applications in scintillator devices and X-ray imaging.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Arup Chakraborty, Ihtasham Salam, Mehdi Choolaei, Judy Lee, Carol Crean, Daniel K. Whelligan, Rachida Bance-Soualhi, John R. Varcoe
Summary: By comparing the permselectivities and Cl- conductivities of non-crosslinked RG-AEMs with different cationic headgroups, this study found that the chemistry of the headgroup can modify the balance between permselectivity and conductivity in RG-AEMs. Higher water content and higher ion exchange capacity led to lower permselectivities. The addition of ionic crosslinking further improved the permselectivity of DMI-based RG-AEMs. These findings indicate the potential of high ion exchange capacity AEMs with imidazolium-type headgroups and optimal ionic crosslinking, calling for more research on their comparison with non-RG analogues.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Jason Raymond, Monica Felipe-Sotelo, Rachida Bance-Soualhi, Carol Crean, Maya Al-Sid-Cheikh
Summary: This study investigates the adsorption capacity of nanoplastics for butyltin (TBT) and the factors affecting adsorption. The results show that nanoplastics have a high adsorption capacity for TBT, with smaller particles and lower salinity leading to greater adsorption. This suggests that nanoplastics have a greater potential to transport TBT compared to microplastics, and adsorption is influenced by the presence of competitive salts.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Biochemistry & Molecular Biology
Nabeel Merali, Tarak Chouari, Julien Terroire, Maria-Danae Jessel, Daniel S. K. Liu, James-Halle Smith, Tyler Wooldridge, Tony Dhillon, Jose I. Jimenez, Jonathan Krell, Keith J. Roberts, Timothy A. Rockall, Eirini Velliou, Shivan Sivakumar, Elisa Giovannetti, Ayse Demirkan, Nicola E. Annels, Adam E. Frampton
Summary: The bile microbiome plays an important role in pancreatic ductal adenocarcinoma (PDAC) and can distinguish malignant tumors from benign ones. It was found that the composition of the bile microbiome is altered in patients with PDAC, suggesting that these microbial changes could potentially serve as diagnostic and prognostic biomarkers for PDAC.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Meeting Abstract
Cardiac & Cardiovascular Systems
Mariam Bapir, Simon S. Skene, Paola Campagnolo, Christian Heiss
CARDIOVASCULAR RESEARCH
(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)
