Squaraine dyes in molecular recognition and self-assembly

McEwen, Johnathan J.; Wallace, Karl J.

doi:10.1039/b909572a

Cited by 105 publications

(57 citation statements)

References 90 publications

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“…33 Squaraine-based NIRF probes Squaraines (squarylium dyes), consisting of a central ringbased core and a zwitterionic structure, were first developed by Treibs and Jacob in 1965. 34 The oxocyclobutenolate core is linked by aromatic or heterocyclic components at both ends, which shapes a donor-acceptor-donor motif. These dyes typically emit in the red to NIR region, with distinct physical-chemical properties.…”

mentioning

confidence: 99%

Near-infrared fluorescent probes in cancer imaging and therapy: an emerging field

Yi¹,

Wang²,

Qin³

et al. 2014

IJN

211

149

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Near-infrared fluorescence (NIRF) imaging is an attractive modality for early cancer detection with high sensitivity and multi-detection capability. Due to convenient modification by conjugating with moieties of interests, NIRF probes are ideal candidates for cancer targeted imaging. Additionally, the combinatory application of NIRF imaging and other imaging modalities that can delineate anatomical structures extends fluorometric determination of biomedical information. Moreover, nanoparticles loaded with NIRF dyes and anticancer agents contribute to the synergistic management of cancer, which integrates the advantage of imaging and therapeutic functions to achieve the ultimate goal of simultaneous diagnosis and treatment. Appropriate probe design with targeting moieties can retain the original properties of NIRF and pharmacokinetics. In recent years, great efforts have been made to develop new NIRF probes with better photostability and strong fluorescence emission, leading to the discovery of numerous novel NIRF probes with fine photophysical properties. Some of these probes exhibit tumoricidal activities upon light radiation, which holds great promise in photothermal therapy, photodynamic therapy, and photoimmunotherapy. This review aims to provide a timely and concise update on emerging NIRF dyes and multifunctional agents. Their potential uses as agents for cancer specific imaging, lymph node mapping, and therapeutics are included. Recent advances of NIRF dyes in clinical use are also summarized.

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mentioning

confidence: 99%

Near-infrared fluorescent probes in cancer imaging and therapy: an emerging field

Yi¹,

Wang²,

Qin³

et al. 2014

IJN

211

149

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“…The combination of these factors makes these dyes less desirable for the industrial production of DSC devices [24]. These problems have led to the development of many new organic dyes including triarylamines [25–27], coumarins [28], cyanines [29], indolines [30,31], squaraines [32–34], quinoxalines [35] and natural dyes [36]. These organic dyes are designed with a donor-ᴨ-linker-acceptor (D-π-A) structural arrangement, and absorb in the same region as Ru-by dyes.…”

Section: Development In Sensitizer/dyesmentioning

confidence: 99%

A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells

Holliman

Kershaw

Connell

et al. 2018

Science and Technology of Advanced Materials

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Dye-sensitized solar cells (DSCs) have been the subject of wide-ranging studies for many years because of their potential for large-scale manufacturing using roll-to-roll processing allied to their use of earth abundant raw materials. Two main challenges exist for DSC devices to achieve this goal; uplifting device efficiency from the 12 to 14% currently achieved for laboratory-scale ‘hero’ cells and replacement of the widely-used liquid electrolytes which can limit device lifetimes. To increase device efficiency requires optimized dye injection and regeneration, most likely from multiple dyes while replacement of liquid electrolytes requires solid charge transporters (most likely hole transport materials – HTMs). While theoretical and experimental work have both been widely applied to different aspects of DSC research, these approaches are most effective when working in tandem. In this context, this perspective paper considers the key parameters which influence electron transfer processes in DSC devices using one or more dye molecules and how modelling and experimental approaches can work together to optimize electron injection and dye regeneration.

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“…It enhances dispersion interactions between chromophores, especially for flattened structures like cyanines, squaraines, porphyrins, xanthenes, spiropyrans [6,18,[21][22][23]. It is known that such molecules easily form H-or J-aggregates and even multilayer thin films.…”

Section: Association Constant Studymentioning

confidence: 99%

Cation-Anionic Association of Organic Dyes in Aqueous Solutions: Structure and Properties of Associates

Shapovalov¹

2017

MOCR

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Squaraine dyes in molecular recognition and self-assembly

Cited by 105 publications

References 90 publications

Near-infrared fluorescent probes in cancer imaging and therapy: an emerging field

Near-infrared fluorescent probes in cancer imaging and therapy: an emerging field

A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells

Cation-Anionic Association of Organic Dyes in Aqueous Solutions: Structure and Properties of Associates

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