Article
Chemistry, Applied
Shanshan Li, Jiaqi Zhang, Yanrong Li, Yang Xu
Summary: In this study, porphyrin-based NCPs with dual fluorescence emission were synthesized via a solvothermal process. These materials could be used for ratiometric fluorescent sensing of pH and copper ion. NCPs@PEI-1 showed a good fluorescence response to pH and could also be used as a sensor for detecting Cu2+.
Article
Chemistry, Multidisciplinary
Jens Krumsieck, Martin Broering
Summary: PorphyStruct is a digital tool for analyzing non-planar distortion modes of porphyrinoids, utilizing the NSD technique for quantitative description and comparative studies. The application to porphyrinoids reveals the necessity for an extended basis of normal modes, and for metal porphyrinoids, the phenomenon of supersaddling was discovered allowing for more in-depth discussions of structure-function correlations.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Analytical
Yanqi Li, Yu Wang, Shuqin Chen, Zhenming Wang, Liang Feng
Summary: A novel paper-based colorimetric sensor array was developed using inkjet printing method with polyethylene glycol (PEG) immobilization system. It demonstrated excellent discrimination ability and high resolution in detecting pH values, extending the indicating range of each indicator and enriching the distinguishable capability of the sensor array.
ANALYTICA CHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Xiaolei Li, Emmanuel Roussakis, Juan Pedro Cascales, Haley L. Marks, Lilian Witthauer, Michael Evers, Dieter Manstein, Conor L. Evans
Summary: Reliable oxygen sensors are in high demand for fitness tracking, health monitoring, and medical diagnostics. Materials based on phosphorescence quenching by oxygen offer high sensitivity and rapid response, with PPMA being identified as an optimal material for oxygen-sensing devices. In vivo studies demonstrated the potential use of PPMA-based films for non-invasively detecting tissue oxygenation changes, showing promise for integration into wearable devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Tobias Burger, Christian Winkler, Irene Dalfen, Christian Slugovc, Sergey M. Borisov
Summary: The optical oxygen sensing capabilities of porphyrin-based metal-organic frameworks were studied, revealing high oxygen permeability and bimolecular quenching constants. The frameworks showed exceptional gas transport, large pore sizes, and effective isolation of the sensing indicators. These materials have potential applications in detecting oxygen in trace and ultra-trace ranges.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Spectroscopy
Baojuan Zhao, Yuancui Li, Yunhan Zhao, Yan Ma, Fengjuan Li, Hongli Han, Na Wang, Xiang Wang
Summary: A new porphyrin-based sensing platform in CTAB microemulsion is developed for highly sensitive detection of theophylline. Under the optimal detection conditions, this platform shows a low limit of detection and excellent results in the determination of commercially available theophylline preparation.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Khengdauliu Chawang, Sen Bing, Jung-Chih Chiao
Summary: The development of planar and flexible electrochemical pH sensors with iridium oxide sensing film for viscous solutions is investigated in this study. The study analyzes the effects of salt interference and solution viscosity on pH-sensing responses. The findings indicate that these planar electrodes can provide predictable pH deviations when measuring pH in viscous solutions.
Article
Automation & Control Systems
Bo-Gyu Bok, Jin-Seok Jang, Min-Seok Kim
Summary: This paper introduces a multimodal tactile sensing module that enhances the dexterity of robots with parallel grippers. The module includes a 4 x 4 matrix 3-axis force sensor array and a single-temperature sensor. The sensor utilizes silicon, gold, and a polymer-based elastomer for strain, temperature, and encapsulation. Experimental results demonstrate accurate object contact detection through analysis of three tactile modalities.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Engineering, Biomedical
Riccardo Rizzo, Valentina Onesto, Giulia Morello, Helena Iuele, Francesca Scalera, Stefania Forciniti, Giuseppe Gigli, Alessandro Polini, Francesca Gervaso, Loretta L. del Mercato
Summary: The article discusses the development of in vitro 3D systems to study tumor microenvironments and how cancer cells interact with their surrounding environment. The researchers describe a pH-sensing hybrid system that can monitor metabolic changes in colorectal cancer spheroids. They characterize the properties of the system and quantify proton gradient distribution in the spheroids during drug treatment, revealing the effects of the treatment on extracellular pH. The findings provide insights into cellular metabolism and have implications for the study of solid tumors and personalized medicine approaches.
MATERIALS TODAY BIO
(2023)
Review
Immunology
Stephanie Hajjar, Xu Zhou
Summary: pH is crucially maintained at cellular, tissue, and systemic levels, and alterations in pH are associated with various diseases. However, the mechanisms of pH sensing and regulation and their impact on immune responses remain poorly understood at the tissue level. By studying cellular and tissue components involved in pH regulation, we can gain insights into how the immune system integrates information to modulate homeostatic and inflammatory programs.
TRENDS IN IMMUNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
D. Y. Li, L. L. Liao, H. Q. Zhou, Y. Zhao, F. M. Cai, J. S. Zeng, F. Liu, H. Wu, D. S. Tang, F. Yu
Summary: A highly porous hydrogen-evolving electrocatalyst comprising Co2P/Ni2P nanohybrids on a conductive CoNi foam demonstrates outstanding pH-universal catalytic activities for hydrogen evolution. It shows exceptional performance in a wide pH range and can bear high current densities in neutral, alkaline, and acidic solutions, outperforming most non-noble electrocatalysts and even matching or surpassing noble Pt catalysts. This discovery may pave a new avenue for the development of robust inexpensive electrocatalysts for hydrogen production in unfavorable neutral or alkaline media.
MATERIALS TODAY PHYSICS
(2021)
Article
Engineering, Environmental
Yue Liu, Linfan Guo, Yan Chen, Yaqian Wang, Gengsheng Xu, Lina Gu, Zhiwu Yu, Yupeng Yuan
Summary: Sensitive and selective detection of copper ions (Cu2+) using a porphyrin-based luminescent metal-organic framework (Al-TCPP) has been achieved in this study. The framework exhibits dual emission peaks at 467 and 646 nm, and upon interaction with Cu2+ ions, the fluorescence peak at 646 nm reduces while the intensity at 467 nm remains steady. A ratio-metric fluorescence sensor utilizing an internal standard has been constructed, with a linear relationship established between the fluorescence intensity ratio and the Cu2+ concentration. The Al-TCPP framework demonstrates a low limit of detection for Cu2+ and can effectively determine low Cu2+ content in various samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Govardhana Babu Bodedla, Yu Dong, Geliang Tang, Jianzhang Zhao, Fuxiang Zhang, Xunjin Zhu, Wai-Yeung Wong
Summary: In this study, two new Pt(ii)-porphyrins were synthesized and found to possess long-lived triplet excited states, showing higher efficiency in photocatalytic hydrogen evolution (PHE). Among them, PtD(p-NI)PP with two NI units exhibited better PHE performance, which can be attributed to its longer triplet excited state lifetime and more favorable thermodynamic driving force.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Qi Kang, Hiroaki Takehara, Takanori Ichiki
Summary: The electrochemical performances of three types of polyaniline (PANI)-based films as pH-sensing electrodes were evaluated. The PANI-ES/PVAc film exhibited improved stability and significantly higher pH sensitivity compared to PANI-EB and PANI-ES films. It also showed good reproducibility and selectivity to H+ over certain other ions and molecules.
Article
Chemistry, Analytical
Pinghua Ling, Xinyu Sun, Xianping Gao, Linyu Wang, Pei Yang, Feng Gao
Summary: In this paper, a novel label-free and extensibility electrochemical sensing platform based on porphyrin-ionic liquid (Por-IL) aggregate for the detection of antibody is described. The Por-IL exhibited high singlet oxygen (O-1(2)) quantum yields and electrocatalytic activity toward hydrogen peroxide (H2O2). In the presence of antibody, the electrochemical signal was generated by the catalysis of water and O-1(2) by the antibody. This immunosensor platform has the potential for medical diagnosis.
Article
Chemistry, Physical
Dmitry S. Andrianov, Yoann Farre, Kathy J. Chen, Julien Warnan, Aurelien Planchat, Denis Jacquemin, Andrei V. Cheprakov, Fabrice Odobel
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2016)
Article
Chemistry, Multidisciplinary
D. S. Andrianov, V. B. Rybakov, A. V. Cheprakov
CHEMICAL COMMUNICATIONS
(2014)
Article
Chemistry, Organic
Mikhail A. Filatov, Stanislav Baluschev, Iliyana Z. Ilieva, Volker Enkelmann, Tzenka Miteva, Katharina Landfester, Sergey E. Aeshchenkov, Andrei V. Cheprakov
JOURNAL OF ORGANIC CHEMISTRY
(2012)
Article
Chemistry, Multidisciplinary
Andrei V. Cheprakov, Mikhail A. Filatov
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
(2009)
Article
Chemistry, Multidisciplinary
Mikhail A. Filatov, Artem Y. Lebedev, Sergei N. Mukhin, Sergei A. Vinogradov, Andrei V. Cheprakov
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2010)
Review
Chemistry, Inorganic & Nuclear
Irina P. Beletskaya, Andrei V. Cheprakov
Article
Chemistry, Organic
Elena R. Ranyuk, Mikhail A. Filatov, Alexei D. Averin, Andrei V. Cheprakov, Irina P. Beletskaya
SYNTHESIS-STUTTGART
(2012)
Article
Chemistry, Organic
Mikhail A. Filatov, Andrei V. Cheprakov
Article
Chemistry, Multidisciplinary
Anton S. Abel, Ilya S. Zenkov, Alexei D. Averin, Andrey V. Cheprakov, Alla G. Bessmertnykh-Lemeune, Boris S. Orlinson, Irina P. Beletskaya
Article
Chemistry, Inorganic & Nuclear
Mirna El Khatib, Andrei V. Cheprakov, Sergei A. Vinogradov
Summary: This study evaluates the properties of functionalized dipyrrins in sensing applications, revealing their ability to form complex compounds with metal ions and providing insights for the design of biological sensors.
INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Anton S. Abel, Andrey Cheprakov, Alexei D. Averin, Irina P. Beletskaya, Michel Meyer, Stephane Brandes, Myriam Laly, Alla Bessmertnykh-Lemeune, Severinne Rigolet
Summary: This study focuses on the development of synthetic approaches to luminescent organic-inorganic materials for the detection of toxic metal ions in aqueous solutions. The unique phosphonate-substituted ruthenium complexes were shown to have high sensitivity towards copper ions, offering a promising solution for solid-state sensors.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Inorganic & Nuclear
Gleb Morozkov, Anton S. Abel, Mikhail A. Filatov, Sergei E. Nefedov, Vitaly A. Roznyatovsky, Andrey Cheprakov, Alexander Yu Mitrofanov, Ilia S. Ziankou, Alexei D. Averin, Irina P. Beletskaya, Julien Michalak, Christophe Bucher, Laurent Bonneviot, Alla Bessmertnykh-Lemeune
Summary: Ru(II) complexes play a central role in photocatalytic organic reactions. This study successfully synthesized a series of structurally modified Ru(II) complexes and found their potential in enhancing photocatalytic efficiency and adapting to different reaction types.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Organic
Anton S. Abel, Alexei D. Averin, Andrey V. Cheprakov, Vitaly A. Roznyatovsky, Franck Denat, Alla Bessmertnykh-Lemeune, Irina P. Beletskaya
ORGANIC & BIOMOLECULAR CHEMISTRY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Sujatha Thyagarajan, Brahma Ghosh, Andrei V. Cheprakov, Anna Moore, Sergei A. Vinogradov
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2010)