High quantum-yield carbon dots embedded metal-organic frameworks for selective and sensitive detection of dopamine

Xie, Siqi; Li, Xujie; Wang, Lumin; Zhu, Fawei; Zhao, Xinyi; Yuan, Tianqi; Liu, Qi; Chen, Xiaoqing

doi:10.1016/j.microc.2020.105718

Cited by 25 publications

(14 citation statements)

References 61 publications

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“…Siqi et al [ 193 ] described a novel approach of incorporating the advantages of fluorescent nanomaterials and metal–organic frameworks to improve a unique fluorescent composite for sensor applications. A binary carbon quantum dot with formidable quantum producing nanoparticles with blue emitting color was embedded into a luminescent metal–organic framework (LMOFs: zeolitic imidazole framework ZIF-8).…”

Section: Metal–organic Frameworkmentioning

confidence: 99%

“…More significantly, the CQDs@ZIF-8 composite possesses suitable thermal firmness, fluorescent steadiness and demonstrates high precision, and anti-restriction performances for dopamine discovery. The as-prepared CQDs@ZIF-8 composite generates fresh sensing operation when compared with CQDs or with ZIF-8 separately; the detection of dopamine by the composite CQDs@ZIF-8 was favored over a wide linear concentration range of 0.1–200 μM with a limit of detection (LOD) of 16.64 nM [ 193 ].…”

Section: Metal–organic Frameworkmentioning

confidence: 99%

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Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals

Ajibade

Oloyede

2022

IJMS

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Hazardous chemical compounds such as endocrine-disrupting chemicals (EDCs) are widespread and part of the materials we use daily. Among these compounds, bisphenol A (BPA) is the most common endocrine-disrupting chemical and is prevalent due to the chemical raw materials used to manufacture thermoplastic polymers, rigid foams, and industrial coatings. General exposure to endocrine-disrupting chemicals constitutes a serious health hazard, especially to reproductive systems, and can lead to transgenerational diseases in adults due to exposure to these chemicals over several years. Thus, it is necessary to develop sensors for early detection of endocrine-disrupting chemicals. In recent years, the use of metal–organic frameworks (MOFs) as sensors for EDCs has been explored due to their distinctive characteristics, such as wide surface area, outstanding chemical fastness, structural tuneability, gas storage, molecular separation, proton conductivity, and catalyst activity, among others which can be modified to sense hazardous environmental pollutants such as EDCs. In order to improve the versatility of MOFs as sensors, semiconductor quantum dots have been introduced into the MOF pores to form metal–organic frameworks/quantum dots composites. These composites possess a large optical absorption coefficient, low toxicity, direct bandgap, formidable sensing capacity, high resistance to change under light and tunable visual qualities by varying the size and compositions, which make them useful for applications as sensors for probing of dangerous and risky environmental contaminants such as EDCs and more. In this review, we explore various synthetic strategies of (MOFs), quantum dots (QDs), and metal–organic framework quantum dots composites (MOFs@QDs) as efficient compounds for the sensing of ecological pollutants, contaminants, and toxicants such as EDCs. We also summarize various compounds or materials used in the detection of BPA as well as the sensing ability and capability of MOFs, QDs, and MOFs@QDs composites that can be used as sensors for EDCs and BPA.

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Section: Metal–organic Frameworkmentioning

confidence: 99%

Section: Metal–organic Frameworkmentioning

confidence: 99%

Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals

Ajibade

Oloyede

2022

IJMS

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“…For example, Xie et al prepared CDs@ZIF-8 composites by an in situ embedding strategy, using ZIF-8 as the target recognition unit and using the fluorescence quenching of CDs to detect dopamine. 39 As mentioned before, this single-response fluorescence detection may be interfered with by many factors, which will produce fluctuations and affect the results. At the same time, Xie et al obtained a nonlinear relationship between the fluorescence and dopamine concentration.…”

Section: Introductionmentioning

confidence: 99%

Carbon dots-decorated hydroxyapatite nanowires–lanthanide metal–organic framework composites as fluorescent sensors for the detection of dopamine

Sun

Zhang

et al. 2022

Analyst

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“…Thus, an efficient scaffold is required to evade vitamin’s low bioavailability and release these agents sustainably. Several scaffolds have been invented for this purpose. − Among the countless classes of porous scaffolds, metal–organic frameworks (MOFs) have attracted much attention as a scaffold due to their exceptionally high porosity, large specific surface area, biodegradability, biocompatibility, and chemical tenability. − Fluorescent MOFs (FMOFs) are an exclusive sub-class of MOFs which are generally implemented for sensing purposes. The inherent porosity of MOFs is the preferred destination for the guest molecule, improving the scope of guest–host interaction and thus the sensing ability.…”

Section: Introductionmentioning

confidence: 99%

“…The inherent porosity of MOFs is the preferred destination for the guest molecule, improving the scope of guest–host interaction and thus the sensing ability. Incorporating guest fluorescent nanoparticles into the non-fluorescent MOFs is a widely used technique for FMOF fabrication. , The FMOFs can serve as an effective drug carrier due to their intrinsic porosity, but at the same time, they suffer from sustainability issues and rapid degradation upon pH changes. Therefore, coating these FMOFs with a biocompatible polymer is crucial for sustainable drug administration.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Vitamin B12-Loaded Carbon Dot/Mixed-Ligand Metal Organic Framework Encapsulated within the Gelatin Microsphere for pH Sensing and In Vitro Wound Healing Assessment

Bhattacharyya

Nandi

Dey

et al. 2022

ACS Appl. Bio Mater.

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Bacterial invasion is a serious concern during the wound healing process. The colonization of bacteria is mainly responsible for the pH fluctuation at the wound site. Therefore, the fabrication of a proper wound dressing material with antibacterial activity and pH monitoring ability is necessary to acquire a fast healing process. Therefore, this work is dedicated to designing a vitamin B12-loaded gelatin microsphere (MS) decorated with a carbon dot (CD) metal−organic framework (MOF) for simultaneous pH sensing and advanced wound closure application. The resultant MS portrayed a high specific surface area and a hierarchically porous structure. Furthermore, the surface of the resultant MS contained numerous carboxyl groups and amine groups whose deprotonation and protonation with the pH alternation are accountable for the pH-sensitive properties. The vitamin B12 release study was speedy from the MOF structure in an acidic medium, which was checked by gelatin coating, and a controlled drug release behavior was observed. The system showed excellent cytocompatibility toward the L929 cell line and remarkable antibacterial performance against Gramnegative Escherichia coli and Gram-positive Staphylococcus aureus. Furthermore, the combined effect of Zn 2+ , the imidazole unit, and CDs produces an outstanding bactericidal effect on the injury sites. Finally, the in vitro wound model suggests that the presence of the vitamin B12-loaded gelatin MS accelerates the proliferation of resident fibroblast L929 cells and causes tissue regeneration in a time-dependent manner. The relative wound area, % of wound closure, and wound healing speed values are remarkable and suggest the requirement for assessing the response of the system before exploiting its prospective in vivo application.

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High quantum-yield carbon dots embedded metal-organic frameworks for selective and sensitive detection of dopamine

Cited by 25 publications

References 61 publications

Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals

Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals

Carbon dots-decorated hydroxyapatite nanowires–lanthanide metal–organic framework composites as fluorescent sensors for the detection of dopamine

Fabrication of a Vitamin B12-Loaded Carbon Dot/Mixed-Ligand Metal Organic Framework Encapsulated within the Gelatin Microsphere for pH Sensing and In Vitro Wound Healing Assessment

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