Article
Nanoscience & Nanotechnology
Lei Shao, Jidong Zhang, Yu Fu, Junyi Chen
Summary: Convenient and sensitive trace water indication is achieved using a flower-like metal-organic framework Cu-FMM. The Cu-FMM can reversibly change its coordination structure with the capture and loss of water molecules, enabling naked-eye colorimetric indication of trace water. The Cu-FMM exhibits a recognizable color change when exposed to the atmosphere or solvent with trace water, with a low detection limit of RH 3% and a water content of 0.25 parts per thousand (v/v). The multi-scale pore structure of Cu-FMM contributes to a fast and reversible response, outperforming traditional coordination polymer humidity sensors. This study provides insights for the design of sensitive and practical naked-eye water indicator materials for in situ and continuous monitoring in industrial processes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Paula M. Castillo, Francisco J. Fernandez-Acejo, Jose M. Carnerero, Rafael Prado-Gotor, Aila Jimenez-Ruiz
Summary: The study utilizes the stabilizing effect of lysozymes to develop a quick naked-eye test for detecting urinary lysozyme concentrations over 57.2 μg/mL. By calculating color difference parameters, the test can reliably provide a positive colorimetric response in less than 15 minutes, making it useful for detecting disorders such as leukemia-associated lysozymurias.
Article
Polymer Science
Emilia Hola, Alicja Gruchala, Roman Popielarz, Joanna Ortyl
Summary: Five novel 4,6-diphenyl-2-pyrrol-1-yl-benzene-1,3-dicarbonitrile derivatives were synthesized and investigated as fluorescent sensors for photopolymerization processes, providing a visible and direct strategy to monitor the process. These compounds were found to be effective for free-radical and cationic photopolymerization, as well as for the production of photocurable coatings.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Analytical
Jing-Lin He, Ling Tang, Shi-Qing Liao, Mei-Tong Guo, Ling Wu, Yinghui Song, Sulai Liu, Zhong Cao
Summary: A label-free platform utilizing target-triggered hybridization and inhibition of gold nanoparticle aggregation was developed for naked-eye detection of telomerase activity. This method offers a cost-effective approach for cancer diagnosis and identification of breast cancer phenotypes.
Article
Chemistry, Analytical
Tahereh Rohani Bastami, Mansour Bayat, Roberto Paolesse
Summary: In this study, a novel and facile colorimetric assay based on Au@AgNPs as a chemosensor for the naked-eye detection of morphine was developed. The aggregation of Au@AgNPs upon exposure to morphine resulted in a visible color change from light-yellow to brown. The method showed excellent stability, selectivity, prompt detection, and cost-effectiveness.
Article
Biochemistry & Molecular Biology
Catia D. F. Martins, M. Manuela M. Raposo, Susana P. G. Costa
Summary: Industrial activity has caused widespread metal ion pollution, leading to concerns for ecosystems and human health. Therefore, it is crucial to develop sensors that can selectively and sensitively detect these analytes. In this study, an azo dye, Dabcyl 2, was synthesized and tested for its ability to detect metal ions with environmental and industrial relevance. The results showed that chemosensor 2 had a selective response for Pd2+, Sn2+ and Fe3+, with a visible color change and significant shifts in the UV-Vis spectrum.
Article
Chemistry, Multidisciplinary
Rima D. Alharthy, Nadeem Ahmed, Saman Mubarak, Muhammad Yaqub, Muhammad Khalid, Iqra Shafiq, Muhammad Adnan Asghar, Ataualpa Albert Carmo Braga, Zahid Shafiq
Summary: A series of sensors, SM-1 to SM-3, were designed and synthesized using indole carboxaldehydes and 2,4-dinitrophenyl hydrazine. The synthesis was accompanied by a density functional theory investigation, which revealed a reduction in band gap, a bathochromic shift, and charge transference. SM-3 displayed high selectivity toward F- ions, with a low detection limit and a binding constant of 7.7 x 105.
Article
Chemistry, Multidisciplinary
Rima D. Alharthy, Nadeem Ahmed, Saman Mubarak, Muhammad Yaqub, Muhammad Khalid, Iqra Shafiq, Muhammad Adnan Asghar, Ataualpa Albert Carmo Braga, Zahid Shafiq
Summary: A new series of sensors (SM-1 to SM-3) were synthesized using indole carboxaldehydes and 2,4-dinitrophenyl hydrazine. The deprotonated chromophores exhibited a smaller band gap and a red shift compared to the neutral sensors. Charge transfer from indole to dinitrophenyl hydrazine was observed. Sensor SM-3 showed high selectivity for F- ions, while SM-1 and SM-2 responded to both F- and CN- ions.
Article
Chemistry, Applied
Shuangshou Wang, Lu Zhang, Qiwen Jin, Zhongqiu Xu, Jiayi Zhao, Yuwen Ding, Wenzhi Li, Peng Lin, Jing Gu, Qi Zhang, Yang Chen, Hongmei Chen, Tingxuan Yan
Summary: A filter paper-based colorimetric strategy was developed for instrument-independent visual detection of artificial food colorants (FCs). Indicator papers were prepared and colorimetric cards with fine correspondence between colors and FCs concentrations were obtained. The method showed improved selectivity and sensitivity, allowing in situ colorimetric assay of FCs in a wide range of pH values. The feasibility of the method was confirmed through comparison with other analytical methods.
Article
Chemistry, Multidisciplinary
Bumjun Park, Suheon Kim, Cheol Hwan Kwak, Kugalur Ranjith Shanmugam, Young-Kyu Han, Youngjin Cho, Yun Suk Huh
Summary: Porous cesium lead bromide nanofibers were fabricated via electrospinning and utilized in a sensor to detect gaseous and aqueous ammonia effectively. The stability of the nanofibers under different environmental conditions was verified, showing significant promise in assessing food decay for safe purchase of fresh agricultural products.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Rima D. Alharthy, Nadeem Ahmed, Saman Mubarak, Muhammad Yaqub, Muhammad Khalid, Iqra Shafiq, Muhammad Adnan Asghar, Ataualpa Albert Carmo Braga, Zahid Shafiq
Summary: A new series of sensors SM-1 to SM-3 were synthesized using indole carboxaldehydes and 2,4-dinitrophenyl hydrazine, and their properties were investigated using density functional theory. The deprotonated chromophores showed a reduction in band gap and a bathochromic shift compared to the neutral sensors. The sensor SM-3 exhibited high selectivity towards F- ions and showed a color change from mustard to purple with a red shift of 96 nm.
Article
Materials Science, Multidisciplinary
V. Ramkumar, P. Kamachiyappan, R. Manjunath, S. Balamurugan, A. Ashokkumar, M. K. Ashraf Ali, S. C. Kim
Summary: A highly selective and sensitive receptor for Al3+ and Cu2+ ions was synthesized and characterized. The receptor exhibited solvatochromism and keto-enol tautomerism properties in different solvents. It was found to be a highly selective colorimetric sensor for Al3+ ions, and a turn-off sensor for Cu2+ ions. The highlight of this work is its effectiveness as a naked-eye sensor for both Al3+ and Cu2+ ions.
Article
Spectroscopy
Ting Peng, Sheng Ye, Ruiyuan Liu, Jinqing Qu
Summary: Excessive residual hydrogen peroxide (H2O2) disinfectant in food is harmful to human health. Efficient detection methods for H2O2 detection are necessary. In this study, five D-A molecules 3a-3e were designed and synthesized to find suitable probes for H2O2 detection. Two promising probes, 3a and 3c, were identified based on structure-property relationships. These probes showed colorimetric and fluorescent signals towards H2O2 with low detection limits and rapid response. The reaction mechanism and regulation mechanism of structure adjustment on probe performance were studied. A smartphone RGB analysis was utilized for the quantitative detection of H2O2 without complicated instruments. The probes were also applied to detect H2O2 in milk samples, HepG-2 cells, and zebrafish, indicating promising applications in food samples and physiological systems.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Liu Yang, Yu-Long Liu, Cheng-Guo Liu, Ying Fu, Fei Ye
Summary: HNA is a dual-platform colorimetric and ratiometric chemosensor designed to detect fluoride anion in DMSO solution. It shows excellent selectivity and sensitivity, with color changes from yellow to purple when F- is present. The detection limit is as low as 0.61 mu M, and it has a binding model with F- in a 3:2 stoichiometry ratio. HNA has the potential to be a superior chemosensor for monitoring F- selectively and sensitively.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Analytical
Jian Zheng, Ha Lim Noh, Hye W. Chun, Byeong M. Oh, Junyeop Lee, Sang-Kee Choi, Eunha Kim, Daewoong Jung, Woo Sung Lee, Jong H. Kim
Summary: The new colorimetric chemosensor C8-ISPBI based on isatin Schiff base showed highly sensitive and selective detection of H2S gas, with detection limits as low as 1.2 μM. The nucleophilic attack reactions were found to be the key to its excellent sensing capability. C8-ISPBI also exhibited sensitive detection of H2S under practical conditions, indicating its potential as a versatile and effective H2S gas leak detector.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)