Highly photoluminescent carbon dots-based immunosensors for ultrasensitive detection of aflatoxin M1 residues in milk

Li, Guangming; Liu, Chen; Luo, Pengjie; Lin, Guimiao; Jiang, Wenxiao

doi:10.1016/j.foodchem.2021.129443

Cited by 33 publications

(16 citation statements)

References 35 publications

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“…In Fig. 1 e, the high-resolution C 1 s spectrum reveals three peaks at 284.5, 285.6, and 288.2 eV assigned to C – C/C = C, C – O, and C = O, respectively [ 24 , 25 ]. The HR XPS O 1 s spectrum has two peaks, which are attributed to C = O (531.6 eV) and C – O (532.7 eV) bonds, respectively (Fig.…”

Section: Resultsmentioning

confidence: 99%

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Dong

Wang

et al. 2021

J Nanobiotechnol

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Long-lasting moisture retention is a huge challenge to humectants, and effective methods or additives for promote these functions are limited, especially nano-additives. Carbon dots (CDs) have attracted increasing research interest due to its ultra-small size, excellent optical properties and low toxicity, etc. However, most of researches have been focused on the photoexcited CDs and its subsequent photophysical and chemical processes, such as photoluminescence, photodynamic, photothermal and photocatalytic behavior. The intrinsic chemo-physical properties of the pristine CDs are not fully explored. Here, we report an excellent moisture retention capability of a new carmine cochineal-derived CDs (Car-CDs) for the first time. The relationship between the structure of Car-CDs and its moisture retention capability is revealed. More interestingly, the effective applications of Car-CDs in moisturizing lipstick are demonstrated. This work expands the research and application of CDs into a broad, new area, potentially in skin care.

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Section: Resultsmentioning

confidence: 99%

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Dong

Wang

et al. 2021

J Nanobiotechnol

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“…353 With the expansion of their applications in medical care, food detection and environmental monitoring, biosensors are required to possess high sensitivity, good stability during the detection process, and low cost. [354][355][356] The properties of nanomaterials (such as conductivity, magnetism, redox, acidity and alkalinity) allow them to interact with biomolecules, which can accelerate the transfer of interface electrons and promote catalytic reactions on the electrode surface, effectively improving the performance of biosensors. [357][358][359] Therefore, nanomaterial-based biosensors have sparked a wealth of interest to researchers.…”

Section: Biosensingmentioning

confidence: 99%

Layered double hydroxide-based nanomaterials for biomedical applications

et al. 2022

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“…According to International Agency of Research on Cancer Agency for Research on Cancer (IARC), AF, especially AFB1, is classified as group 1 human carcinogen (Nasir et al 2021;WHO 1993). AF residues are predominant in eggs, milk, meat flesh and organs, and their consumption by humans is a major route of mycotoxin intake causing a wide range of harmful effects (Adegbeye et al 2020;Li et al 2021). There are a number of environmental conditions that favour the growth and production of mycotoxins, namely humidity, temperature, moisture and handling conditions during harvest and storage (Mutegi et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of aflatoxin and heavy metals levels in maize and poultry feeds from Delta State, Nigeria

Ifie

Igwebuike

Imasuen

et al. 2022

Int. J. Environ. Sci. Technol.

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The aim of this study was to determine the concentration of total aflatoxin and heavy metals (lead cadmium, chromium and copper) in poultry feed and ingredients from two regions (north and central) in Delta State, Nigeria. A total of 120 samples collected (comprising of maize, soybean meal, layers mash and broiler finisher) directly from poultry farms, feed mills and poultry feed dealers were analysed for moisture content, total aflatoxin and heavy metals (lead, cadmium, chromium and copper) concentrations. Moisture content was analysed using standard Association of Official Agricultural Chemists method, while total aflatoxin and heavy metals concentrations were determined by enzyme-linked immunosorbent assay and atomic absorption spectrometry, respectively. Total aflatoxins concentrations ranged from 12.0 to 20 µg/kg and 21 to 31 µg/kg in samples from north and central region, respectively. Apart from maize, aflatoxin content in other samples from the north was marginally lower (18–20 µg/kg) than permitted levels. On the other hand, aflatoxin levels in samples from the central were all above tolerable limits. Copper content in samples was less than permissible limit, while 44.4, 29.1 and 21% of samples had concentrations of lead, cadmium and chromium, respectively, above permissible limit. The presence of aflatoxin and lead in poultry feeds above permissible limits of 20 µg/kg and 5 mg/kg, respectively, may pose a risk for animal productivity and human health.

show abstract

Highly photoluminescent carbon dots-based immunosensors for ultrasensitive detection of aflatoxin M1 residues in milk

Cited by 33 publications

References 35 publications

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Fluorescent carbon dots with excellent moisture retention capability for moisturizing lipstick

Layered double hydroxide-based nanomaterials for biomedical applications

Assessment of aflatoxin and heavy metals levels in maize and poultry feeds from Delta State, Nigeria

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