Article
Chemistry, Physical
Chunmei Guo, Yifeng Zhou, Xin Chen, Yan Wang, Jihu Shan, Jiaqi Hou
Summary: Two novel gelators G1 and G2 based on naphthalene and cholesterol derivatives were synthesized and showed stable organogel formation in different solvents. G2 exhibited efficient fluorescence sensing for Fe3+ and Cu2+, and the self-assembly mechanism and ion response mechanism were further investigated. The detection limits of G2 for Fe3+ and Cu2+ were 8.2539 x 10-6 M and 9.1426 x 10-6 M, respectively. Additionally, a rapid fluorescence detection film for Fe3+ and Cu2+ was developed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Analytical
Qiaoyin Li, Haiyan Chen, Shumin You, Zhenyu Lin, Zhitao Chen, Fengping Huang, Bin Qiu
Summary: Proper amount of fluorion is important for human health, but excessive fluorion is harmful. A colorimetric and fluorescence enhanced sensor, using MOF material UiO-66 combined with fluorescent dye FITC, is proposed to detect fluorion with high selectivity. It has a good linear relationship in the range of 2-150 mu M (0.038-2.85 ppm), and has been applied to the detection of actual water samples. Field visual detection of fluoride ion is realized, expanding the application of MOF in fluorescence sensing.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Longjia Yan, Dan Li, Yi Le, Ping Dong, Li Liu
Summary: Fluoride detection is crucial for environmental monitoring and disease screening. Small molecule fluorescent probes have gained rapid development in recent years due to their high efficiency, selectivity, and low cost. In this study, a novel phenothiazine-based fluorescent probe PHT was designed and synthesized for the quick detection of fluoride ions. PHT exhibited a response time of only 1 minute and a detection limit of 1.3 ppb. Furthermore, PHT showed a stoke shift of around 140 nm, which surpassed previous reports. Finally, the PHT probe was successfully utilized for HepG2 imaging and detection of biological samples with endemic disease.
Article
Chemistry, Applied
Qin Wang, Dan Li, Nian Rao, Yan Zhang, Yi Le, Li Liu, Lei Huang, Longjia Yan
Summary: The fluorescent probe IDS based on the indole ring was successfully designed and synthesized for selective detection of fluoride ions, with a low detection limit of 1.3 ppb. It was used for fluorescence imaging of F- in HepG2 cells and for detecting fluoride ion concentrations in environmental water samples and urine samples. These applications indicate that IDS is a sensitive probe with potential for research and the diagnosis of endemic fluorosis.
Article
Materials Science, Multidisciplinary
Yuxiang Zhao, Yaqian Yan, Zhuangzhuang Wu, Chaokun Li, Ruimei Fan, Lijuan Feng, Wenxin Wang, Qi Chen
Summary: A novel fluorescent covalent organic framework COF-TMS was designed and prepared via the Povarov reaction for detecting fluorine ions. The electronic state of COF-TMS changed due to the replacement of trimethyl silicon with hydrogen atom, resulting in a noticeable fluorescence color change. The structure and optical property of COF-TMS remained unchanged in the presence of various anions, while the crystallinity significantly improved.
JOURNAL OF MATERIALS SCIENCE
(2022)
Review
Polymer Science
Xiaoyi Feng, Yuning Luo, Fangjie Li, Xueting Jian, Yang Liu
Summary: Natural small molecular drugs, with unique rigid backbone structures and modifiable multiple sites, have been utilized as building blocks to form low-molecular-weight supramolecular gels with high drug loading, low toxicity, and outstanding stimulus responsiveness. These gels have overcome the shortcomings of natural drugs and are widely used in biomedical fields, showing great potential for further research.
Article
Green & Sustainable Science & Technology
Wei-Fan Kuan, Fang-Yu Chang, Jhih-Jing Chang, Hsuan-Chih Kuo, Chia-Hsun Hsieh, Jenn Fang Su, Ching-Lung Chen
Summary: In this work, mesoporous calcium-based adsorbents were prepared using an organogel called DMDBS as a soft template, which significantly increased the specific surface area of the adsorbent and enhanced its adsorption capability for fluoride removal. The physical properties and adsorption capacity of the adsorbents could be controlled by adjusting the calcination temperatures and DMDBS loadings. The synthesized mesoporous adsorbent showed promising potential for practical applications in fluoride-contaminated groundwater due to its stable fluoride adsorption capacity over a neutral pH range of 6-8.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Huachao Che, Xike Tian, Jiahuan Wang, Chu Dai, Yulun Nie, Yong Li, Liqiang Lu
Summary: In order to conveniently and intelligently detect aluminum ions (Al3+) and fluoride ions (F-) in groundwater, a novel organic probe called RBP has been developed. RBP showed significant fluorescence enhancement at 588 nm with the increase of Al3+, and the detection limit was 0.130 mg/L. By combining RBP with fluorescent internal standard CDs, the fluorescence of RBP-Al-CDs at 588 nm was quenched due to the replacement of F- for Al3+, while the CDs at 460 nm remained unchanged, and the detection limit was 0.0186 mg/L. A logic detector based on RBP has been developed for convenient and intelligent detection of Al3+ and F-. It can provide rapid feedback on their concentration levels (U, L and H) within the ultra-trace, low concentration, and high concentration range of Al3+ and F-. The development of the logic detector is of great significance for studying the in-situ chemical behavior of Al3+ and F- and for daily household detection.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Optics
Rashid Mia, Peter J. Cragg, Karl J. Wallace
Summary: Three low molecular weight fluorescent probes have been synthesized and their photophysical properties studied in various solvent systems. Significant optical responses were observed, particularly in the detection of organophosphates, shedding light on the mechanism of selectivity.
JOURNAL OF LUMINESCENCE
(2021)
Article
Engineering, Environmental
Yaping Zhang, Yi Qu, Yuqi Zhang, Ya Gao, Le Wang
Summary: In this study, a fluorescent probe (ZYP-1) based on 1,8-naphthalimide was prepared for the detection of fluoride ions, showing high selectivity and sensitivity in real samples. The interaction between the analyte and ZYP-1 was determined through F-19 NMR and H-1 NMR titration, revealing the mechanism of fluorescence enhancement. The probe exhibited a low limit of detection (33 nM) for fluoride ions in acetonitrile, and was successfully applied to detect fluoride in various liquid and solid samples such as food and toothpaste.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xinhua Cao, Qingqing Han, Qingqing Wang, Aiping Gao, Xue-fei Ge, Xudong Yu, Guixia Wang
Summary: A novel naphthalimide-based gelator (1) was synthesized and it showed sensitive response ability towards high active acyl chlorides. Xerogel 1 could detect three kinds of acyl chlorides gases with low detection limits. This research provides a new way for constructing multi-functional self-assembly system for detection of acyl chlorides.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Dan Li, San Tu, Yi Le, Yue Zhou, Lan Yang, Yuyu Ding, Lei Huang, Li Liu
Summary: This paper introduces the importance of fluorine and the detection method for fluoride ions. A reactive fluorescent probe SCC was designed and synthesized to detect fluoride ions in aqueous systems. The method has high sensitivity and selectivity, and is of great significance for evaluating fluoride pollution in the environment.
Article
Chemistry, Multidisciplinary
Reena Kyarikwal, Bidyut Kumar Kundu, Argha Chakraborty, Suman Mukhopadhyay
Summary: In this study, a tetrazole based gelator molecule was synthesized and characterized using various techniques. The interactions between the gelator and different isomers of aminopyridine were investigated, and the results showed selective sensing and visual color changes for specific isomers. Morphological and thermal studies revealed nanostructured morphology and slow combustion of the gels, respectively. The gels also exhibited self-healing behavior.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Applied
Suyu Qiu, Kaizhi Zhang, Tao Zhou, Hui Xu, Jianmin Yu, Xinxin Ban, Fengjie Ge, Dongbao Jia, Qingzheng Zhu, Aiyun Zhu
Summary: A multipolarization branched thermal activated delayed fluorescence sensor, based on cyano-carbazole, was designed and synthesized. The probe showed long fluorescence life, high quantum yield, high selectivity and sensitivity for Fe3+ ions, and a low limit of detection. It also exhibited strong aggregation-induced emission, making it potentially useful for live-cell confocal fluorescence imaging and time-resolved fluorescence imaging.
Article
Chemistry, Analytical
Yayun Gu, Lizhong Peng, Weihua Ding, Yang Wang, Xuhui Zeng
Summary: In this study, a novel fluorescence resonance energy transfer (FRET) nanoprobe, AuNCs-LMWH-AuNRs, was developed for fast and sensitive monitoring of HPA enzymatic activity, which is crucial for searching for molecular therapies targeting HPA.
Article
Materials Science, Multidisciplinary
Shiv Kumar, Pauline Tourneur, Jonathan R. Adsetts, Michael Y. Wong, Pachaiyappan Rajamalli, Dongyang Chen, Roberto Lazzaroni, Pascal Viville, David B. Cordes, Alexandra M. Z. Slawin, Yoann Olivier, Jerome Cornil, Zhifeng Ding, Eli Zysman-Colman
Summary: In order to develop efficient blue-emitting TADF compounds, derivatives of 2CzPN with electron-accepting groups were synthesized. The results showed that these derivatives shifted the emission wavelength towards blue in polar solvents and matrices. Electrochemiluminescence experiments revealed that some of these derivatives exhibited an unprecedented delayed onset and long emission times, which suggest an organic long-persistent electrochemiluminescence mechanism.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Bahadur Sk, Ezhakudiyan Ravindran, Upasana Deori, Nisha Yadav, Gyana Prakash Nanda, Pachaiyappan Rajamalli
Summary: This study demonstrates the role of donor substitution position in achieving deep blue emission with improved color purity in an efficient blue organic light-emitting diode (OLED) device. A novel emitter is synthesized with low Delta E-ST value, high photoluminescence quantum yield, and narrow emission spectra. The OLED device using this emitter shows high external quantum efficiency and deep blue emission. This study paves the way for developing deep-blue TADF emitters with high efficiency and color purity.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Engineering, Chemical
Subhangi Devadarshini Sahoo, Akhil Ravikumar, Edamana Prasad
Summary: In this study, a series of novel water-induced shape memory composite films based on poly(vinyl alcohol)-polystyrene (PVA-PSX) were prepared using a one-pot in situ polymerization method. The resulting films showed high mechanical strength and water-induced shape memory behavior, with the PVA-PS3 film demonstrating the fastest shape recovery rate. The desirable properties of the PVA-PSX composite film make it a suitable candidate for packaging materials in the food and cosmetic industries.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Malay Krishna Mahato, Jyothibabu Sajila Arya, Subhajit Nandy, C. Sudakar, Edamana Prasad
Summary: Coupling semiconductor quantum dots with carbon-based materials has been proven effective in improving the performance of photovoltaics. In this study, the charge transfer dynamics of CdTe quantum dots in the presence of PDY materials were investigated. The results showed fast electron transfer from CdTe quantum dots to PDYQD, while PDYS accepted the electron at a relatively slower rate. A comprehensive charge transfer scheme was proposed based on mechanistic investigation, and improved photoconductivity for CdTe-PDYQD was observed in four-probe photoconductivity measurements.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Organic
Ashish Kumar Mazumdar, Gyana Prakash Nanda, Nisha Yadav, Upasana Deori, Upasha Acharyya, Bahadur Sk, Pachaiyappan Rajamalli
Summary: Metal-free organic emitters with thermally activated delayed fluorescence (TADF) characteristics have potential applications in optoelectronic devices and solid-phase sensing. Two compounds with different donor sizes and strengths were synthesized and their fluorescence properties were studied.
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Jyothibabu Sajila Arya, Edamana Prasad
Summary: A thermally stable, crystalline, electrically conducting, and brightly fluorescent anthracene nanorod is reported. The nanorod exhibits tunable bandgap, high thermal stability, significant electrical conductivity, and excitation-dependent emission due to its unique covalent linkages. This material stands out among known 1D nanomaterials.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Soumi Roy, Malay Krishna Mahato, Edamana Prasad
Summary: To enhance the efficiency of perovskite nanocrystal-based photovoltaics, studying the charge transfer at the nanocrystal interface is crucial. In this study, three small molecules with different electronic properties were chosen to investigate their charge transfer dynamics at the CsPbBr3 perovskite nanocrystal-small organic molecule interface. The results showed that these molecules interacted with the nanocrystals in the excited state, and electron transfer from the nanocrystals to the acceptor molecules was confirmed to be the reason for faster ground-state bleach recovery.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Subhangi Devadarshini Sahoo, T. K. Vasudha, Vignesh Muthuvijayan, Edamana Prasad
Summary: This study presents a design strategy to regulate physical and chemical interactions in double network hydrogels, resulting in a conductive, self-healing, and self-adhesive hydrogel material. The obtained hydrogels exhibit tunable mechanical properties and high self-healing efficiency due to the dynamic cross-linking nature of the polymer networks. Additionally, the hydrogels show self-adhesive properties on various materials, even underwater. The results suggest that these hydrogels have potential applications as soft human motion sensors.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Upasana Deori, Ezhakudiyan Ravindran, Gyana Prakash Nanda, Suman G. Ramanath, Upasha Acharya, Parthasarathy Gandeepan, Pachaiyappan Rajamalli
Summary: This study designed and synthesized two anthracene based compounds, which exhibit multifunctional properties including aggregation-induced emission (AIE), multi-responsive polymorphs, mechanoluminescence, and electroluminescence. By controlling the temperature, three polymorphic phases were achieved from one of the compounds, showing different emission colors under mechanical stimuli. Additionally, the compounds were used as emitters in blue and green organic light-emitting diodes (OLEDs), achieving high external quantum efficiency.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Review
Materials Science, Multidisciplinary
Kishan Lal Kumawat, Karuna Kar Nanda, Pachaiyappan Rajamalli
Summary: Organic-inorganic hybrid perovskite material-based light-emitting diodes (PLEDs) have the potential to replace conventional LEDs in next-generation smart devices. However, the stability of PLEDs is a major concern due to ion migration, Joule heating, electrochemical reactions, and atmospheric moisture. Various strategies, such as optimizing material stoichiometry and device engineering, have been explored to overcome these challenges and improve the operational lifetime of perovskite-based LEDs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Raji R. Krishnan, E. Prasad, K. H. Prema
Summary: A novel method using a green medium (lemon juice) to improve the sol-gel auto combustion process has been introduced for the massive production of nickel nanoparticles with magnetic separable properties. The synthesis of metal nanoparticles over metal oxide nanoparticles was explained using the Ellingham diagram-based thermodynamics. Various techniques were used to investigate the structure, morphology, and purity of the synthesised materials.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kingshuk Debsharma, Sunanda Dey, Jyothibabu Sajila Arya, Krishna Sundar Das, Chittaranjan Sinha, Edamana Prasad
Summary: This study presents a pyrene-appended low-molecular-weight organogelator that exhibits mechano-thermo-responsive gelation, superhydrophobic surface formation, and dual-channel cyanide sensing. The gelator is capable of qualitative and quantitative sensing in various environments, with a detection limit as low as 5.42 nM. The importance of functional supramolecular materials for achieving a dual-channel sensory response in practical applications is highlighted.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Nisha Yadav, Upasana Deori, Ezhakudiyan Ravindran, Bahadur Sk, Pachaiyappan Rajamalli
Summary: Thermally activated delayed fluorescence (TADF) emitters with 100% internal quantum efficiency (IQE) via reverse intersystem crossing (RISC) and toxic metal-free design have become promising candidates for efficient organic light-emitting diodes (OLEDs). In this study, four donor-acceptor type TADF emitters were synthesized, and increasing the donor strength resulted in lower Delta E-ST values and higher efficiency. The performance discrepancies between different emitters were attributed to the presence of an intermediate triplet state. This work highlights the importance of the intermediate triplet state ((LE)-L-3) in the design of efficient TADF molecules.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Chindhu Soman, Alphy Sebastian, Malay Krishna Mahato, U. V. Varadaraju, Edamana Prasad
Summary: Luminescent polymer-based metallogels have various applications in drug delivery, tissue engineering, sensing, and optical systems. This study demonstrates the synthesis of a luminescent metallogel using ring opening copolymerization and thiol-ene click chemistry, which allows for the attachment of functional groups to the polymer. The resulting metallogel exhibits reversible vapochromism and irreversible chemochromism, making it a promising material for multi-stimuli responsive applications.
MATERIALS ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
Bhaswati Sarkar, Edamana Prasad, Ramesh L. Gardas
Summary: In this study, a class of novel scissor shaped phenothiazine (PT) derivatives with twisted intramolecular charge transfer (TICT) state were synthesized, which showed divergent fluorescence emission characteristics and reversible mechanofluorochromic (MFC) behavior. These materials also exhibited potential application in organic photovoltaic cells and redox flow batteries.
MATERIALS ADVANCES
(2022)
