Assembly and Applications of Macrocyclic-Confinement-Derived Supramolecular Organic Luminescent Emissions from Cucurbiturils

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(9), P. 9032 - 9077

Published: March 21, 2022

Cucurbit[n]urils (Q[n]s or CB[n]s), as a classical of artificial organic macrocyclic hosts, were found to have excellent advantages in the fabricating tunable and smart luminescent materials aqueous media solid state with high emitting efficiency under rigid pumpkin-shaped structure-derived macrocyclic-confinement effect recent years. This review aims give systematically up-to-date overview Q[n]-based supramolecular emissions from confined spaces triggered host–guest complexes, including assembly fashions mechanisms macrocycle-based well their applications. Finally, challenges outlook are provided. Since this class emissions, which essentially derived cavity-dependent confinement resulting fashions, emerged only few years ago, we hope will provide valuable information for further development light-emitting other related research fields.

Language: Английский

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Long Persistent Luminescence from Metal–Organic Compounds: State of the Art

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(19)

Published: March 18, 2023

Abstract The excited‐state tuning of luminescent metal–organic compounds has made great progress in the fields optical imaging, photocatalysis, photodynamic therapy, light‐emitting devices, sensors, and so on. Although with high luminescence efficiency can be realized via enhanced molecular rigidity heavy‐atom effect, their corresponding lifetimes are still limited on order a nanosecond to millisecond, owing inherent competition between luminous lifetime. Therefore, advanced applications (i.e., persistent afterglow information security, anti‐counterfeiting, smart materials, among others) related long (LPL, typically lifetime larger than millisecond) seriously hindered. This review gives timely systematic summary for realizing room‐temperature phosphorescence (RTP)‐type thermally activated delayed fluorescence (TADF)‐type LPL during last few years. Particularly, based perspectives time, space, energy dimensions, fundamental materials design coordination assembly systematically described first time. Moreover, internal external factors influencing properties terms efficiency, lifetime, color illustrated. Last but not least, challenges also discussed developing from compounds.

Language: Английский

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Fluorescent Probes for Biological Species and Microenvironments: from Rational Design to Bioimaging Applications

Accounts of Chemical Research, Journal Year: 2023, Volume and Issue: 56(3), P. 258 - 269

Published: Jan. 18, 2023

Some important biological species and microenvironments maintain a complex delicate dynamic balance in life systems, participating the regulation of various physiological processes playing indispensable roles maintaining healthy development living bodies. Disruption their homeostasis organisms can cause diseases even death. Therefore, real time monitoring these during different pathological is great significance. Fluorescent-probe-based techniques have been recognized as one most powerful tools for imaging samples. In this Account, we introduce representative works from our group field fluorescent probes capable detecting metal ions, small bioactive molecules, microenvironment. The design strategies molecule applications will be discussed. By regulating strategy mechanism (e.g., ICT, PeT, FRET) electronic spectral characteristics platforms, chemical show high selectivity diverse functions, which used processes. Through exploration rational response strategy, combined with variety techniques, such super-resolution imaging, photoacoustic (PA) etc., realized multimode analytes subcellular level to vivo level, provides means study functions microenvironments. This Account aims offer insights inspiration novel could provide biology. Overall, represent series turn-on/turn-off/ratiometric fluorescent/PA visually dynamically trace cells that seek higher resolution depth molecular improve diagnostic methods clarify new discoveries related Our future efforts devoted developing multiorganelle targeted organelle interaction employing dual-mode NIR II PA investigate treat at levels.

Language: Английский

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Carbon Nanomaterial Fluorescent Probes and Their Biological Applications

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(6), P. 3085 - 3185

Published: March 13, 2024

Fluorescent carbon nanomaterials have broadly useful chemical and photophysical attributes that are conducive to applications in biology. In this review, we focus on materials whose photophysics allow for the use of these biomedical environmental applications, with emphasis imaging, biosensing, cargo delivery. The review focuses primarily graphitic including graphene its derivatives, nanotubes, as well dots nanohoops. Recent advances future prospects fields discussed at depth, where appropriate, references reviews pertaining older literature provided.

Language: Английский

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Bimetallic Single-Atom Nanozyme-Based Electrochemical-Photothermal Dual-Function Portable Immunoassay with Smartphone Imaging

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(33), P. 13663 - 13671

Published: Aug. 10, 2024

Rapid and accurate detection of human epidermal growth factor receptor 2 (HER2) is crucial for the early diagnosis prognosis breast cancer. In this study, we reported an iron-manganese ion N-doped carbon single-atom catalyst (FeMn-NC

Language: Английский

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NIR‐II absorbing organic nanoagents for photoacoustic imaging and photothermal therapy

BMEMat, Journal Year: 2023, Volume and Issue: 1(1)

Published: Jan. 30, 2023

Abstract Near‐infrared (NIR) absorbing materials hold great potential in biomedical applications, such as fluorescence imaging (FLI), photoacoustic (PAI), photodynamic therapy (PDT), and photothermal (PTT). Generally, these can be classified into two main categories based on their wavelengths: the first NIR (NIR‐I) (~650–950 nm) second (NIR‐II) (~1000–1700 materials. Due to reduced absorption scattering of NIR‐II light tissue compared NIR‐I light, enable with improved contrast deepened penetration, which is favor practical applications. Various inorganic have been developed for phototheranostics recent years. However, non‐biodegradability toxicity hinder further clinical translation. Biocompatible organic biodegradability well tailored optical property are thus more desired. In this review, we summarize advances nanoagents (ONAs) small molecules (SMs) conjugated polymers (CPs) PAI PTT show our perspectives future challenges development

Language: Английский

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Macrocycles-assembled AIE supramolecular polymer networks

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 507, P. 215717 - 215717

Published: March 5, 2024

Language: Английский

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Optical Phenomena in Molecule-Based Magnetic Materials

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(9), P. 5930 - 6050

Published: April 30, 2024

Since the last century, we have witnessed development of molecular magnetism which deals with magnetic materials based on species, i.e., organic radicals and metal complexes. Among them, broadest attention was devoted to molecule-based ferro-/ferrimagnets, spin transition materials, including those exploring electron transfer, nanomagnets, such as single-molecule magnets (SMMs), qubits, stimuli-responsive materials. Their physical properties open application horizons in sensors, data storage, spintronics, quantum computation. It found that various optical phenomena, thermochromism, photoswitching characteristics, luminescence, nonlinear chiroptical effects, well responsivity external stimuli, can be implemented into Moreover, fruitful interactions these effects provide new cross-effects multifunctionality, enriching applications optical, electronic, devices. This Review aims show scope phenomena generated recent advances areas high-temperature photomagnetism, thermometry utilizing SMMs, addressability magneto-chiral dichroism, opto-magneto-electric multifunctionality. These findings are discussed context types accessible for classes

Language: Английский

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A novel fluorescent probe for cascade detection of hydrogen sulfide and hypochlorous acid and its application in bioimaging

Talanta, Journal Year: 2024, Volume and Issue: 270, P. 125649 - 125649

Published: Jan. 8, 2024

Language: Английский

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Ratiometric Imaging of Catecholamine Neurotransmitters with Nanosensors

Nano Letters, Journal Year: 2024, Volume and Issue: 24(7), P. 2400 - 2407

Published: Feb. 12, 2024

Neurotransmitters are important signaling molecules in the brain and relevant many diseases. Measuring them with high spatial temporal resolutions biological systems is challenging. Here, we develop a ratiometric fluorescent sensor/probe for catecholamine neurotransmitters on basis of near-infrared (NIR) semiconducting single wall carbon nanotubes (SWCNTs). Phenylboronic acid (PBA)-based quantum defects incorporated into to interact selectively catechol moieties. These PBA-SWCNTs further modified poly(ethylene glycol) phospholipids (PEG-PL) biocompatibility. Catecholamines, including dopamine, do not affect intrinsic E11 fluorescence (990 nm) these (PEG-PL-PBA-SWCNT) sensors. In contrast, defect-related E11* emission (1130 decreases by up 35%. Furthermore, this dual functionalization allows tuning selectivity changing charge PEG polymer. sensors taken cells, which beneficial extracellular imaging, they functional slices. summary, use SWCNTs create biosensor dopamine.

Language: Английский

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