Article
Chemistry, Analytical
Sasikarn Seetasang, Takashi Kaneta
Summary: A newly developed portable photometer equipped with two colors of paired light emitter detector diodes (PEDD) was used for the determination of paraquat and diquat radicals. The colorimetric measurements employed redox reactions to produce characteristic colors for diquat and paraquat radicals. The proposed methodology showed excellent linear regression and precision, proving its reliability in comparison with the standard method of high-performance liquid chromatography.
MICROCHEMICAL JOURNAL
(2021)
Article
Multidisciplinary Sciences
Xiang Wang, Lu Wang, Guoyun Meng, Xuan Zeng, Dongdong Zhang, Lian Duan
Summary: Researchers successfully introduced a new locking unit to solve the steric repulsion issue in the spatially close hydrogen atoms of the multiresonance skeleton, while also strengthening the weak carbon-nitrogen bond in anionic states. A emission with a peak wavelength of 452 nm, FWHM of only 14 nm, and nearly BT.2020 blue chromaticity coordinates was achieved in toluene, resulting in a high maximum external quantum efficiency of 33.9% in a sensitizing device. Furthermore, a stable device with a small y coordinate of 0.057 achieved an impressive LT97 of 178 hours at a constant current density of 12 mA/cm2, nearly 20 times longer than the model emitter.
Article
Chemistry, Organic
Joydip De, Rohit Ashok Kumar Yadav, Rahul Singh Yadav, Santosh Prasad Gupta, Mayank Joshi, Angshuman Roy Choudhury, Jayachandran Jayakumar, Jwo-Huei Jou, Chien-Hong Cheng, Santanu Kumar Pal
Summary: A unique strategy involving a central benzene core with specific attachments led to the attainment of discotic nematic phase in the reported compounds. These compounds exhibit high solid-state emission and act as efficient deep-blue emitters in OLEDs with CIEx,y coordinates of (0.16, 0.07).
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Zhongyan Huang, Honghui Xie, Jingsheng Miao, Yaxiong Wei, Yang Zou, Tao Hua, Xiaosong Cao, Chuluo Yang
Summary: Multipleresonance thermally activated delayed fluorescence (MR-TADF)emitters with a multichannel reverse intersystem crossing (RISC) pathway were developed using an orthogonal linking strategy. The resulting emitter, CzBN3, showed a 23-fold increase in RISC rate, high photoluminescence quantum yield, and narrow emission spectrum. This design strategy enabled high maximum external quantum efficiency and reduced efficiency roll-off in the device. The state-of-the-art electroluminescent performance validates the superiority of this molecular design strategy.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Gloria Hong, Xuemin Gan, Celine Leonhardt, Zhen Zhang, Jasmin Seibert, Jasmin M. Busch, Stefan Braese
Summary: Organic light-emitting diodes (OLEDs) have undergone significant development over the past 30 years, with advancements in emitter materials leading to three generations of OLED devices. Research is now focused on the fourth generation of OLEDs, with academia and industry achieving milestones in the development of green, orange-red, and blue OLED emitters.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yan-Qing Tang, Jing-Xiong Zhou, Yan-Qing Li, De-Zhi Yang, Xin-Yi Zeng, Kai Zhang, Yi-Hui He, Hao Ren, Dong-Ge Ma, Jian-Xin Tang
Summary: Two yellow TADF emitters, 3,6,11-triTPA-BPQ and 3,6,12-triTPA-BPQ, based on the triphenylamine (TPA) donor, have been synthesized by introducing nitrogen atoms into different positions of the acceptor core. Both emitters exhibit high horizontal emitting dipole ratios of 92% in doped organic films with high photoluminescence quantum yields. The yellow OLEDs using the emitter 3,6,11-triTPA-BPQ achieve a maximum external quantum efficiency of 30.3%, providing a new way to boost the efficiency of yellow TADF-OLEDs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Mechanics
Zhengguo Su, Fusheng Yu, Baoxing Zhu, Wenjun Han, Qingda Wang, Wentao Li
Summary: This research focuses on the sinusoidal actuation of a flexible fin for median and/or paired fin propulsion. A prototype of an underwater robot is built, and computer-aided engineering simulation method is used to study the transmission system of the flexible fin. The study also includes the analysis and simulation of the flexible fin surface and the fin sinusoidal oscillation, as well as the relationship between the fin wave propulsion force and the fin wave resistance. Additionally, the correctness of the simulation results is verified through experimental validation.
Article
Materials Science, Multidisciplinary
Lara Tejerina, Alexandros G. Rapidis, Michel Rickhaus, Petri Murto, Zewdneh Genene, Ergang Wang, Alessandro Minotto, Harry L. Anderson, Franco Cacialli
Summary: The luminescence and electroluminescence of an ethyne-linked zinc(II) porphyrin pentamer were studied in two different conjugated polymer matrices. The best results were obtained with a porphyrin loading of 1 wt% in the PIDT-2TPD matrix, which showed efficient energy transfer and high photoluminescent quantum yield. The resulting light-emitting diodes achieved remarkable performance for a singlet NIR-emitter, with high external quantum efficiencies and emission primarily in the NIR, making conjugated porphyrin oligomers promising emitters for non-toxic NIR OLEDs.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Wenxu Yin, Xiaoyu Zhang, Xuyong Yang, Andrey L. Rogach, Weitao Zheng
Summary: This article summarizes the recent progress in the development of near-infrared quantum dot LEDs, focusing on how their device structure and emitter properties facilitate improvement of device performance. The challenges and opportunities associated with these LEDs are also discussed.
Article
Materials Science, Multidisciplinary
Xiangan Song, Zhangshan Liu, Mengyao Lu, Shengnan Zou, Fengyun Guo, Shiyong Gao, Zujin Zhao, Ben Zhong Tang, Yong Zhang
Summary: In this study, a novel organic light-emitting material, SPBAC, and a TADF emitter, 2SPBAC-BP, were synthesized for high efficiency OLEDs. The introduction of a naphthalene moiety allows for efficient triplet exciton utilization, leading to high photoluminescence quantum yield and high power efficiency for 2SPBAC-BP-based OLEDs.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Yongyu Cha, Shuai Li, Zuofang Feng, Rongjiao Zhu, Hongbing Fu, Zhenyi Yu
Summary: This article presents a multifunctional gain material with high optical gain and triplet utilization, serving as both a thermally activated delayed fluorescence emitter and a phosphorescence source.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Katsuaki Suzuki, Hironori Kaji
Summary: By using dynamic nuclear polarization enhanced solid-state NMR measurements, the torsion angle of a highly efficient TADF emitter, DACT-II, in an amorphous state was determined to be 52°. This quantitative study of the torsion angles in TADF molecules in amorphous solids will provide deep insight into the TADF mechanism in amorphous OLEDs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Dongling Zhou, Siping Wu, Gang Cheng, Chi-Ming Che
Summary: This study investigates a new gold(iii)-TADF complex Au-1 as a sensitizer for a solution-processed organic light-emitting diode. Photophysical investigations reveal an efficient energy transfer process from Au-1 to nu-DABNA, resulting in blue SP-OLEDs with high external quantum efficiency and color purity.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Review
Transplantation
Rainer Oberbauer, Timothy W. Meyer
Summary: Precision medicine has been applied in kidney transplantation, where genotyping and antibody detection are used to evaluate sensitivity to immune antigens. Treatment individualization through dosing adjustments is possible. In contrast, hemodialysis prescription lacks precision, relying on outdated standards rather than personalized needs.
NEPHROLOGY DIALYSIS TRANSPLANTATION
(2021)
Article
Materials Science, Multidisciplinary
Tom Cardeynaels, Marc K. Etherington, Simon Paredis, Andrei S. Batsanov, Jasper Deckers, Kleitos Stavrou, Dirk Vanderzande, Andrew P. Monkman, Benoit Champagne, Wouter Maes
Summary: The color purity and stability in multi-donor TADF emitters are crucial for OLED design. In this study, an alternative donor unit was introduced to improve color stability, but it resulted in a low photoluminescence quantum yield, rendering it unsuitable for device applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Biotechnology & Applied Microbiology
Justyna Bzura, Robert Koncki
ENZYME AND MICROBIAL TECHNOLOGY
(2019)
Article
Biophysics
Kamil Strzelak, Robert Koncki
BIOSENSORS & BIOELECTRONICS
(2019)
Article
Chemistry, Analytical
Kamil Strzelak, Justyna Glowacka, Robert Koncki
Article
Chemistry, Analytical
Marta Fiedoruk-Pogrebniak, Robert Koncki
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2020)
Article
Chemistry, Analytical
Ruiyu Ding, Marta Fiedoruk-Pogrebniak, Marta Pokrzywnicka, Robert Koncki, Johan Bobacka, Grzegorz Lisak
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Multidisciplinary
Michal Kizling, Maciej Dzwonek, Anna Nowak, Lukasz Tymecki, Krzysztof Stolarczyk, Agnieszka Wieckowska, Renata Bilewicz
Article
Chemistry, Analytical
Izabela Lewinska, Michal Michalec, Lukasz Tymecki
ANALYTICA CHIMICA ACTA
(2020)
Article
Chemistry, Analytical
Kamil Strzelak, Agnieszka Czajkowska, Robert Koncki
Summary: The comparison between LED-LED and LED-PD detectors for immunoprecipitation detection of transferrin and ferritin showed similar analytical characteristics, with LED-PD having a slightly better detection limit and relative standard deviations. LED-PD detector was more effective in detecting low concentrations of ferritin, especially with the addition of polymer for signal enhancement.
ANALYTICA CHIMICA ACTA
(2021)
Article
Biochemistry & Molecular Biology
Justyna Glowacka, Kamil Strzelak, Robert Koncki
Summary: The fully mechanized multicommutated flow analysis (MCFA) system developed is dedicated to determining horseradish peroxidase (HRP) activity, featuring a broad linear response range, low detection limit, high throughput, and acceptable precision. Moreover, it can be utilized for detecting HRP inhibitors and selected thiols at micromolar levels, showcasing its potential practical utility in various applications.
Article
Biotechnology & Applied Microbiology
Justyna Bzura, Dorota Korsak, Robert Koncki
Summary: This study proposes an alternative approach to investigating bacterial growth based on enzyme activity detection, allowing for real-time and online monitoring of microbial ureolytic activity. The developed bioanalytical flow system enables discrete assaying of microbial urease with high sensitivity and relatively high throughput.
ENZYME AND MICROBIAL TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Izabela Lewinska, Karolina Kurdzialek, Lukasz Tymecki
Summary: Proteinuria is an indicator of kidney disease or risk of cardiovascular disease, and a paper-based sensor has been developed for rapid and reliable diagnosis and monitoring of proteinuria, showing potential for important clinical applications.
Article
Chemistry, Analytical
Justyna Glowacka, Robert Koncki, Kamil Strzelak
Summary: A fully-mechanized bioanalytical system for photometric determination of lactate concentration was developed, offering satisfactory sensitivity and detection limit, reduced sample and reagents consumption, and improved sample flow throughput. The system allows for accurate determination of lactate concentration under optimized conditions.
ANALYTICA CHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Julia Radwan-Praglowska, Lukasz Janus, Ernest Szajna, Tomasz Galek, Aleksandra Sierakowska, Marek Piatkowski, Miroslaw Tupaj, Piotr Radomski, Michal Michalec, Dariusz Bogdal
Summary: Constant development in dentistry has created a demand for modern biomaterials with advanced properties. Although commonly used titanium-based implants have satisfactory durability, biocompatibility, and bioinertness, they do not meet all the requirements for novel medical devices. Magnesium biomaterials are considered as the latest generation of metallic medical devices due to their biocompatibility, bioactivity, and susceptibility to biodegradation, which are unachievable for titanium-derived implants. However, unmodified magnesium implants undergo uncontrolled biocorrosion and may not match with bone tissue formation. Therefore, there is a priority in developing magnesium-based biomaterials with controlled properties. Anodic modification is a promising technique to enhance the biological responses and applicability of metallic materials in biomedical areas. In this study, successful modification of magnesium implants was achieved through a high-voltage anodization process, resulting in the preparation of novel biomaterials with interesting properties and high potential applications in dentistry. The surface oxidation was confirmed by XRD and XRF analyses, and surface morphology was suitable for cell adhesion microstructure. In vitro incubation study showed that the biomaterials promoted apatite formation due to their highly porous morphology and locally increased pH, enhancing biomineralization. Biodegradation tests demonstrated increased resistance to hydrolysis in simulated body fluids due to surface passivation. Further investigation on biocorrosion revealed improved tolerance to human body conditions. Finally, cell culture study on L929 mouse fibroblasts confirmed superior biocompatibility of the newly developed implants, indicating their high potential in the field of dentistry.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Analytical
Mateusz Granica, Lukasz Tymecki
ANALYTICA CHIMICA ACTA
(2020)
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)
