Thermo‐Responsive MOF/Polymer Composites for Temperature‐Mediated Water Capture and Release

Karmakar, Avishek; Mileo, Paulo G. M.; Bok, Ivan; Peh, Shing Bo; Zhang, Jian; Yuan, Hao; Maurin, Guillaume; Zhao, Dan

doi:10.1002/ange.202002384

Cited by 13 publications

(13 citation statements)

References 36 publications

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“…Besides MOF-801, numerous SBUs and link molecules have been utilized to construct various MOFs, consequently resulting in a wide variety of framework topologies. ,− The novel MOF-based atmospheric water harvester with the ability of multiple water harvesting cycles per day has also been developed, which is able to rapidly finish the water adsorption–desorption process within minutes, and merely powered by solar electricity . On the other hand, similar to the composite hydrogels, the MOF matrix can be modified by other sorbent materials as well, such as hygroscopic salt and polymer. , The former realizes an enhanced water sorption capacity of 0.77 L kg sorb –1 at RH = 30% and an energy-free desorption merely driven by natural sunlight . The latter has more diverse functions.…”

Section: Improving Awh Capability By Sorbent Assistancementioning

confidence: 99%

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Water Harvesting from Air: Current Passive Approaches and Outlook

Liu

Beysens

Bourouina

2022

ACS Materials Lett.

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In the context of global water scarcity, water vapor available in air is a non-negligible supplementary fresh water resource. Current and potential energetically passive procedures for improving atmospheric water harvesting (AWH) capabilities involve different strategies and dedicated materials, which are reviewed in this paper, from the perspective of morphology and wettability optimization, substrate cooling, and sorbent assistance. The advantages and limitations of different AWH strategies are respectively discussed, as well as their water harvesting performance. The various applications based on advanced AWH technologies are also demonstrated. A prospective concept of multifunctional water vapor harvesting panel based on promising cooling material, inspired by silicon-based solar energy panels, is finally proposed with a brief outlook of its advantages and challenges.

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Section: Improving Awh Capability By Sorbent Assistancementioning

confidence: 99%

“…The latter has more diverse functions. Karmakar et al demonstrated a composite in which the MOF wrapped around a polymer component . It has the phase transition ability between hydrophilicity and hydrophobicity originating from the temperature change.…”

Section: Improving Awh Capability By Sorbent Assistancementioning

confidence: 99%

Water Harvesting from Air: Current Passive Approaches and Outlook

Liu

Beysens

Bourouina

2022

ACS Materials Lett.

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“…[ 77–79 ] Using this unique feature, Karmakar et al ( Figure 5 ) reported that a chromium‐based MOF (MIL‐101) modified by PNIPAM exhibited thermo‐responsive water capture and release behavior. [ 80 ] Forty percent water content could be captured by a MOF at 96% RH and 25 °C. Water capture was ≈98% and, importantly, it could be realized under mild conditions because of the hydrophilic/hydrophobic transitions of the PNIPAM component.…”

Section: Single Stimulus Mofsmentioning

confidence: 99%

Advances in Functional Metal‐Organic Frameworks Based On‐Demand Drug Delivery Systems for Tumor Therapeutics

Yalamandala

Shen

Min

et al. 2021

Advanced NanoBiomed Research

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Dual on‐demand delivery of therapeutic cargos and energy by transporters can latently mitigate side effects and provide the unique aspects required for precision medicine. To achieve this goal, metal‐organic frameworks (MOFs), hybrid materials constructed from metal ions and polydentate organic linkers, have attracted attention for controlled drug release and energy delivery in tumors. With appropriate characteristics such as tunable pore size, high surface area, and tailorable composition, therapeutic agents (drug molecules or responsive agents) can be effectively encapsulated in MOFs. Based on their intrinsic properties, many physically or chemically responsive agents are able to achieve precise on‐demand drug release and energy generation (thermal or dynamic therapy) using MOFs (as energy absorbers). Herein, the results obtained with various stimuli‐responsive MOFs (including materials from the Institute Lavoisier [MIL], zeolitic imidazolate frameworks [ZIFs], MOFs from the University of Oslo [UiO], and other MOFs) used for tumor suppression are summarized. Furthermore, with the appropriate stimulus, catalytic therapy (caused by the Fenton reaction induced by MOFs) can be provided via the utilization of existing high levels of H2O2 in cancer cells, which potentially elicits immune responses. In addition, the issues impeding clinical translation are also discussed, including the need to overcome tumor heterogeneity and to recognize the innate immune system and possible effects. As the references reveal, additional comprehensive strategies and studies are needed to enable broad applications and potent translational developments.

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“…[20][21][22][23][24][25][26][27] The thermoresponsiveness from PNIPAM has been developed as an on-off switch for various functions such as controlled release and drug delivery. [28][29][30][31] To adjust the LCST, hydrophobic or hydrophilic comonomers or crosslinkers have been used, which enable controlling the hydrophilicity/hydrophobicity of the PNIPAM backbone. The introduction of comonomers or crosslinkers has led to versatile PNIPAM-based polymers having additional functions such as self-healing, 32,33 uorescence, 34,35 photoresponsive properties, 36,37 and aggregation-induced emission (AIE).…”

Section: Introductionmentioning

confidence: 99%