D–A Structured High‐Performance Photothermal/Photodynamic Thionin‐Synthetic Melanin Nanoparticles for Rapid Bactericidal and Wound Healing Effects

Liu, Wenjing; Yu, Yuanyuan; Cheng, Wei; Wang, Xinyue; Zhou, Man; Xu, Bo; Wang, Ping; Wang, Qiang

doi:10.1002/adhm.202203303

Cited by 10 publications

(4 citation statements)

References 72 publications

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“…As shown in Figure 1b, the C 1s spectra for untreated OA only exhibited a lonely peak at ≈285.1 eV (C─C/C─H), and pristine TA displayed three peaks centered at the 284.8 eV (C─H), 286.2 eV (C─O), and 288.6 eV (C═O). [42][43][44][45] Interestingly, a remarkable new peak at 285.5 eV (C═N) might originate from the Schiff base reaction between the amino group in OA and the o-quinone group in TA emerged For OA-TA/Fe. [46][47][48] Similarly, the N 1s spectra of OA (Figure 1c) exhibited at 399.1 eV (C─N), while OA-TA/Fe contained a stronger new characteristic peak located at 401.1 eV (C = N).…”

Section: Materials Characterizationmentioning

confidence: 99%

Free‐Standing Janus Nanosheets: Ultrafast Self‐Assembly and Versatile Biphase‐Application

Li,

Jiang,

Wang

et al. 2024

Adv Funct Materials

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The development of stable Janus architectures suitable for biphasic applications holds significant importance. A novel approach is introduced for interfacial supramolecular self‐assembly, resulting in 2D Janus nanosheets (OA‐TA/Fe) exhibiting an amphiphilic nature. These nanosheets consist of hydrophilic coordination complexes of ferric ions (Fe3+) and tannic acid (TA) on one side of both surfaces and hydrophobic alkyl chains on the other side of both surfaces. The synthesis of these 2D Janus nanosheets involves a simple, ultrafast, and environmentally benign process, eliminating the need for time‐consuming multistep procedures and harsh synthetic conditions typically associated with Janus architecture formation. By exploiting the inherent singular anisotropic wettability inherent in OA‐TA/Fe‐2, the efficacy of these innovative Janus nanosheets in the efficient separation of various organic liquid‐in‐water and water‐in‐organic liquid emulsions is elucidated. Subsequent post‐modification of OA‐TA/Fe has facilitated the highly efficient remediation of contaminated oily wastewater, serving as a model biphasic catalysis reaction, wherein the Janus nanosheets function simultaneously as emulsifiers and catalysts within biphasic mixtures. The methodology establishes a rapid self‐assembly approach for the creation of amphiphilic free‐standing Janus nanosheets, offering compelling prospects for their application in diverse fields, as exemplified by, but not limited to, the case studies presented herein.

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Section: Materials Characterizationmentioning

confidence: 99%

Free‐Standing Janus Nanosheets: Ultrafast Self‐Assembly and Versatile Biphase‐Application

Li,

Jiang,

Wang

et al. 2024

Adv Funct Materials

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“…The crystallinity of the fabrics was determined by an X-ray diffractometer (D2 PHASER A26-X1-A2E0B2A0, Bruker-Axs). The morphology of the fabrics was observed using scanning electron microscopy (SEM, SU8100, Japan) (Liu et al 2023).…”

Section: Fabric Propertiesmentioning

confidence: 99%

A novel cotton bio-scouring using pectinase in combination with Fenton system

Luo,

Ding,

Zhu

et al. 2024

Preprint

Self Cite

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Untreated cotton fabrics are hydrophobic due to the high content of pectin and waxes, and the fabrics need to improve the wettability by scouring for the demands of the subsequent processing such as dyeing and finishing. In this study, a new scouring method for cotton fabrics was developed by pectin hydrolase combined with Fenton system (Fe2+/H2O2). The mechanism of pectin degradation by pectinase combined with Fe2+/H2O2 was investigated. The results showed that α-1,4-glycosidic bonds of water-soluble pectin could be degraded more efficiently by pectinase hydrolysis and Fe2+/H2O2 oxidation. The fabrics scoured with pectinase→Fe2+/H2O2 had less wetting time (4.25 s) and higher vertical wicking height (9.80 cm) compared to the fabrics treated with pectinase alone (> 120 s, 5.15 cm). The results of bleaching and dyeing experiments indicated that the whiteness and dyeing properties of the fabrics were not negatively affected by pectinase→Fe2+/H2O2 treatment, and the strength loss of the fabrics (11.79%) was lower than that of the fabrics with conventional NaOH treatment (20.16%). The results of the experiments in the pilot-scale machine showed that various performance indicators of the fabrics scoured by pectinase→Fe2+/H2O2 reached the level of the conventional NaOH treatment, which demonstrated the possibility for practical application of pectinase→Fe2+/H2O2 scouring. The cotton fabric scouring using pectinase→Fe2+/H2O2 is an effective and feasible new method with advantages such as environmental friendliness, mild treatment conditions, and good treatment effect.

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“…Continuous efforts are underway to develop strategies that enhance the photothermal effects of organic dyes, and one direct approach is through chemical modification. One common strategy involves reducing the energy gap by the introduction of electron‐donating (donor, D) or electron‐withdrawing (acceptor, A) substituents (Chen et al, 2022; Liu et al, 2023; Yang et al, 2022). These results in increased intramolecular charge transfer (ICT), leading to enhanced energy dissipation through non‐radiative processes and ultimately generating more heat (Anderson et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Aggregation‐enhanced photothermal therapy of organic dyes

Yang,

Ji,

Yin

2024

WIREs Nanomed Nanobiotechnol

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Photothermal therapy (PTT) represents a groundbreaking approach to targeted disease treatment by harnessing the conversion of light into heat. The efficacy of PTT heavily relies on the capabilities of photothermal agents (PTAs). Among PTAs, those based on organic dyes exhibit notable characteristics such as adjustable light absorption wavelengths, high extinction coefficients, and high compatibility in biological systems. However, a challenge associated with organic dye‐based PTAs lies in their efficiency in converting light into heat while maintaining stability. Manipulating dye aggregation is a key aspect in modulating non‐radiative decay pathways, aiming to augment heat generation. This review delves into various strategies aimed at improving photothermal performance through constructing aggregation. These strategies including protecting dyes from photodegradation, inhibiting non‐photothermal pathways, maintaining space within molecular aggregates, and introducing intermolecular photophysical processes. Overall, this review highlights the precision‐driven assembly of organic dyes as a promising frontier in enhancing PTT‐related applications.This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > In Vivo Nanodiagnostics and Imaging

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D–A Structured High‐Performance Photothermal/Photodynamic Thionin‐Synthetic Melanin Nanoparticles for Rapid Bactericidal and Wound Healing Effects

Cited by 10 publications

References 72 publications

Free‐Standing Janus Nanosheets: Ultrafast Self‐Assembly and Versatile Biphase‐Application

Free‐Standing Janus Nanosheets: Ultrafast Self‐Assembly and Versatile Biphase‐Application

A novel cotton bio-scouring using pectinase in combination with Fenton system

Aggregation‐enhanced photothermal therapy of organic dyes

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