Perylene diimide supramolecular aggregates: Constructions and sensing applications

Wu, Junhong; Peng, Min; Mu, Mengxin; Li, Jie; Yin, Meizhen

doi:10.1016/j.supmat.2023.100031

Cited by 7 publications

(5 citation statements)

References 73 publications

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“…[1]. Thus, PDIs have been recognized as one of the extensively studied artificial building blocks in supramolecular chemistry, including chemosensing [2,30]. Given the fact that pH control is usually critical for the optimized aggregation behavior and shape-defined assembly morphology of PDIs molecules, as well as their uses for ion sensing in the liquid phase [3,31,32], PDI−based fluorescent sensors have demonstrated great potential for use in pH probing or detection of pH-related ions [3,16,17].…”

Section: Ph Sensing Based On Supramolecular (De)aggregation Mechanismmentioning

confidence: 99%

“…The detection of pH change in strong acidic or basic environment still remains a challenge [9], as most of the sensor molecules or materials (whether organic or inorganic) become chemically unstable under the extreme condition. Taking advantages of the unique conjugation structure of PDI and substitution tunability at the bay area, some successes have been achieved in PDI-based sensor systems, which are capable of detecting pH change in the region of pH < 1 and pH > 11 [30,35].…”

Section: Ph Response Within Strong Acidic or Basic Systemmentioning

confidence: 99%

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Architectures and Mechanisms of Perylene Diimide-Based Optical Chemosensors for pH Probing

et al. 2023

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The precise control and monitoring of pH values remain critical for many chemical, physiological and biological processes. Perylene diimide (PDI)-based molecules and materials exhibit excellent thermal, chemical and photochemical stability, unique UV-vis absorption and fluorescent emission properties, low cytotoxicity, as well as intrinsic electron-withdrawing (n-type semiconductor) nature and impressive molecular assembly capability. These features combined enable promising applications of PDIs in chemosensors via optical signal modulations (e.g., fluorescent or colorimetric). One of the typical applications lies in the probing of pH under various conditions, which in turn helps monitor the extracellular (environmental) and intracellular pH change and pH-relying molecular recognition of inorganic or organic ions, as well as biological species, and so on. In this review, we give a special overview of the recent progress in PDI-based optical chemosensors for pH probing in various aqueous and binary water–organic media. Specific emphasis will be given to the key design roles of sensing materials regarding the architectures and the corresponding sensing mechanisms for a sensitive and selective pH response. The molecular design of PDIs and structural optimization of their assemblies in order to be suitable for sensing various pH ranges as applied in diverse scenarios will be discussed in detail. Moreover, the future perspective will be discussed, focusing on the current key challenges of PDI-based chemosensors in pH monitoring and the potential approach of new research, which may help address the challenges.

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Section: Ph Sensing Based On Supramolecular (De)aggregation Mechanismmentioning

confidence: 99%

Section: Ph Response Within Strong Acidic or Basic Systemmentioning

confidence: 99%

Architectures and Mechanisms of Perylene Diimide-Based Optical Chemosensors for pH Probing

et al. 2023

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“…Hydrogels are networks of cross-linked or hydrogen-bonded polymers that can be swollen by large amounts of water due to the presence of hydrophilic molecules in their chemical structure. , In recent years, hydrogels have been explored for various applications such as drug release textiles, drug delivery, , temperature sensors, , smart windows, − and many other fields. , In addition to the appealing properties that are employed in these broad application areas, hydrogel can offer an additional merit which is effective radiative and/or evaporative cooling.…”

mentioning

confidence: 99%

Hydrogel-Based Stimuli-Responsive Radiative and/or Evaporative Cooling Materials for Carbon Neutrality

Shang,

Zhang,

Zhang

et al. 2024

ACS Energy Lett.

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Radiative cooling cools by radiating heat toward outer space. Evaporative cooling cools by dispatching the latent heat of water via evaporation. These two types of cooling operate without additional pollutant generation. Hydrogel is the one substance that can combine the above two cooling strategies and thus holds high promise to facilitate the construction of a carbon neutral society. This review article first documents the basic principles related to passive cooling, evaporative cooling, heat transfer, and light modulation. Then, the general considerations for hydrogel-based cooling materials are summarized. Third, stimuli-responsive hydrogel-based cooling systems are systematically discussed from aspects of operation mechanisms as well as material selections. Lastly, typical applications of hydrogel-based radiative and/or evaporative cooling materials in buildings, electronic devices, and wearable devices are discussed. Challenges for further development of the hydrogel-based cooling materials are discussed as ending remarks.

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“…Infrared radiation from the Earth to the universe can be used to cool objects on the Earth’s surface because the average temperature of the Earth’s surface (∼290 K) is significantly higher than that of outer space (∼2.7 K). In particular, in the wavelength range of 8–13 μm (the atmosphere window), where the atmosphere barely absorbs, emissivity from objects can reach outer space and dissipate heat energy effectively. , On the other hand, inspired by the fact that mammals and plants cool themselves by evaporating water, the concept of evaporative cooling has been proposed. , The high evaporation enthalpy of water permits water vapor to efficiently transfer heat to the surrounding environment, and the recapture of moisture in the surrounding air grants evaporative cooling the ability to regenerate cooling capability. − Evaporative cooling is effective in areas with high temperatures and low humidities . In areas with a low ambient temperature and/or high humidity, radiative cooling can be effective, allowing their cooling effects to complement each other …”

mentioning

confidence: 99%

Highly Potent Transparent Passive Cooling Coating via Microphase-Separated Hydrogel Combining Radiative and Evaporative Cooling

Shang,

Zhang,

Zhang

et al. 2024

Nano Lett.

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Transparent passive cooling materials can cool targets environmentally without interfering with light transmission or visual information reception. They play a prominent role in solar cells and flexible display cooling. However, achieving potent transparent cooling remains challenging, because light transmission is accompanied by thermal energy. Here we propose to realize effective passive cooling in transparent materials via a microscale phase separation hydrogel film. The poly(N-isopropylacrylamide-co-acrylamide) hydrogel presents light transmittance of >96% and infrared emissivity as high as 95%. The microphase-separated structure affords a higher enthalpy of evaporation. The film is highly adhesive. In field applications, it reduces temperatures by 9.14 °C compared to those with uncovered photovoltaic panels and 7.68 °C compared to those for bare flexible light-emitting diode screens. Simulations indicate that energy savings of 32.76–51.65 MJ m–2 year–1 can be achieved in typical tropical monsoon climates and temperate continental climates. We expect this work to contribute to energy-efficient materials and a carbon-neutral society.

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Perylene diimide supramolecular aggregates: Constructions and sensing applications

Cited by 7 publications

References 73 publications

Architectures and Mechanisms of Perylene Diimide-Based Optical Chemosensors for pH Probing

Architectures and Mechanisms of Perylene Diimide-Based Optical Chemosensors for pH Probing

Hydrogel-Based Stimuli-Responsive Radiative and/or Evaporative Cooling Materials for Carbon Neutrality

Highly Potent Transparent Passive Cooling Coating via Microphase-Separated Hydrogel Combining Radiative and Evaporative Cooling

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