Plasmonics, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 3, 2024
Language: Английский
Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 508, P. 215779 - 215779
Published: March 14, 2024
Language: Английский
Citations
24
Environmental Research, Journal Year: 2024, Volume and Issue: 249, P. 118246 - 118246
Published: Jan. 24, 2024
Language: Английский
Citations
10
Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(13), P. 5150 - 5159
Published: March 19, 2024
Hexavalent chromium [Cr(VI)] is considered a serious environmental pollutant that possesses hazardous effect on humans even at low concentrations. Thus, the development of bifunctional material for ultratrace-selective detection and effective elimination Cr(VI) from environment remains highly desirable scarcely reported. In this work, we explore an imidazolium-appended polyfluorene derivative PF-DBT-Im as sensitive/selective optical probe smart adsorbent ions with ultralow limit 1.77 nM removal efficiency up to 93.7%. aqueous medium, displays obvious transformation in its emission color blue magenta exclusively introducing Cr(VI), facilitating naked-eye colorimetric detection. Consequently, portable sensory device integrated smartphone fabricated realizing real-time on-site visual Cr(VI). Besides, imidazolium groups attached onto side chains are found be beneficial achieving selective efficient capacity high 128.71 mg g–1. More interestingly, could easily regenerated following treatment KBr can recycled least five times row. The main factor behind ultrasensitive response excellent anion-exchange-induced formation unique ground-state complex between evident by FT-IR, XPS, simulation studies. taking advantage signal amplification property rich ion-exchange sites, dual-functional-conjugated polymer presented concurrent recognition proficiently promptly great prospects monitoring water decontamination.
Language: Английский
Citations
8
Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(13), P. 5781 - 5793
Published: June 14, 2024
Polarity-assisting pseudohalide-controlled self-assembly of coordination polymers (CPs) is immense significance for structural tunability and quite necessary exploration the links between structure properties. Herein, we have synthesized two polarity-assisting CPs, CPCd-1 CPCd-2 ({[(Cd2(L1)3(NCS)4].CHCl3.CH3CN}n {[Cd(L1)2(N(CN)2)2].CH3CN}n) using newly developed heteroaldazine-based ligand, L1 (L1 = 1-(Z-(Z-(quinolin-4-ylmethylene) hydrazono) methyl) naphthalen-2-ol) at room temperature systematically characterized through single-crystal X-ray diffraction (SC-XRD) methodology. Interestingly, strong continuous π···π intermolecular interactions influence both CPs to ensure high luminescence properties in solvent medium solid phase. Further, these luminous been utilized discriminating recognition lethal explosive 2,4,6-trinitrophenol (TNP). Notably, shows a lower detection limit (193 ppb) toward TNP than (the 401 ppb), which also confirmed by theoretical scenario. In addition, sensing mechanism established via PET-ICT-π···π interaction pathways. Both numerous practical applications ascertained as innovative ones environmental domains. This type with quinoline-napthaldehyde moieties scanty literature that can detect entirely from aqueous
Language: Английский
Citations
4
The Journal of Physical Chemistry A, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 9, 2025
Plasmon resonance plays an important role in improving the detection of biomolecules, and it is one focuses research to use metal plasmon achieve fluorescence enhancement improve sensitivity. However, problems nondynamic tuning quenching need be solved. Graphene surface can dynamically controlled, graphene adsorption fluorescent molecules avoid greatly emission intensity. The graphene-metal hybrid structure designed this work solve above two well, efficiency on sensitivity biological detection. At same time, nanoribbons our do not require patterning, which lowers threshold for application biosensing.
Language: Английский
Citations
0
Molbank, Journal Year: 2025, Volume and Issue: 2025(2), P. M1987 - M1987
Published: March 31, 2025
The interaction of preorganized iron(II) pivalate complexes with aromatic N-donor ligand (pyridine (py) or 2,2′-bipyridine (bpy)) and 1,4-diaminobutane (dab, putrescine) in anhydrous acetonitrile yielded a new 2D coordination polymer [Fe(piv)2(dab)2]n (1, piv = Me3CCO2–). molecular structure 1 crystal was determined by single-crystal X-ray diffraction analysis ATR-FTIR spectroscopy.
Language: Английский
Citations
0
Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: April 14, 2025
The recognition and differentiation of organic amines are crucial for applications in drug analysis, food spoilage, biomedical assays, clinical diagnostics. Existing luminescence-based methods predominantly rely on fluorescence quenching, limiting the scope sensitive selective detection. Here, we present a fluorochromic approach rapidly distinguishing different based their unique excited-state ground-state interactions with naphthalimide derivative under ultraviolet light. Our findings reveal that photoluminescence quantum yield emission color significantly influenced by substituent group molecular flexibility amine. Specifically, primary amines, together other common lone-pair donors, such as alcohol, ether, thiol, thioether, phosphine, did not exhibit changes, while secondary exhibited only weak emission. For tertiary however, bright green activation was produced molecules containing at least one methyl group; red-shifted yellow observed ones bulkier side groups than methyl; conformationally locked bicycloamines, no observed. In addition, this process depends amine but also shows distinctly ground- dynamics time-resolved spectroscopy. Based these differences, qualitative method is developed visual natural synthetic opioids, including heroin, fentanyl, metonitazene, which more facile rapid compared to current Marquis reagent kit, could facilitate onsite testing, real-time monitoring, streamlined workflows both laboratory field settings.
Language: Английский
Citations
0
Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: May 2, 2025
The global contamination of water bodies by persistent organic pollutants (perfluoroalkyl substances (PFAS)) has generated significant societal concern, emphasizing the urgent need for smart strategies their rapid, ultratrace, and on-site detection. Conjugated polymers (CPs) are exceptional fluorescence sensing materials with signal-amplification properties, yet performance is often hindered a conventional aggregation-caused quenching (ACQ) effect. Herein, we present two acceptor-engineered aggregation-induced emission (AIE)-active CPs (FTD-MI FTD-C8-MI) integrated efficient Förster resonance energy transfer (FRET) mechanisms ultralow detection PFAS. FTD-MI exhibits turn-off (cyan to dark) response, while FTD-C8-MI shows ratiometric red) response PFAS due synergistic effect AIE interchain FRET, facilitated electrostatic hydrophobic interactions upon binding. Both demonstrate excellent sensitivity at subnanomolar level toward most abundant PFAS, perfluorooctanoic acid (PFOA), perfluorooctanesulfonic (PFOS). mechanism been thoroughly investigated both experimental simulation studies. Additionally, an optical sensor array coupled machine learning algorithms established discriminative six types Finally, portable smartphone platform custom-designed "app" was developed real-time, on-site, semiquantitative analysis in actual samples. Thus, providing sensitive, portable, cost-effective, user-friendly solution, this work offers powerful tool monitoring pollution, ensuring safety, reducing risks public health.
Language: Английский
Citations
0
Interdisciplinary materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 7, 2024
Abstract Three‐photon fluorescence (3PF) imaging is an emerging technology for deep‐tissue submicroscopic structures by nonlinearly redshifting the excitation wavelength to second near‐infrared (NIR‐II) window; thus, this approach has great advantages, including deep penetration depth, good spatial resolution, low background, and a high signal‐to‐noise ratio. 3PF been demonstrated be powerful tool noninvasively visualizing all kinds of tissues in recent years. Benefiting from excellent biosecurity structural controllability, development organic probes highly important advancing vivo. However, there no summary generalizability design progress probes. Herein, review introduces fundamental principle highlights advantages bioimaging. The molecular these also summarized based on relative optical indices. Furthermore, different application scenarios are listed detail. In end, main challenges, significance probe exploitation, prospective orientation precise proposed discussed promoting future applications clinical translation.
Language: Английский
Citations
3
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: March 6, 2025
In the past decades, conjugated polyelectrolytes (CPEs) have become prominent in sensing applications due to their unique properties, including strong and tunable light absorption, high sensitivity, water solubility, biocompatibility. Inspired by mammalian olfactory gustatory systems, CPE-based sensor arrays made significant strides discriminating structurally similar analytes complex mixtures for various applications. This review consolidates recent advancements arrays, highlighting rational design, controllable fabrication, effective data processing methods. It covers fundamentals of CPE fluorescence sensing, emphasizing design strategies array units techniques. The broad applicability is demonstrated across diverse domains, environmental monitoring (e.g., detecting metal ions explosives), medical diagnostics disease markers analyzing biological samples), food safety assessing freshness, quality, source products). Further, challenges future directions field are discussed inspire further research development this area.
Language: Английский
Citations
0