Ultraviolet Detection of Monosaccharides: Multiple Wavelength Strategy to Evaluate Results after Capillary Zone Electrophoretic Separation

Kaijanen, Laura; Paakkunainen, Maaret; Pietarinen, Suvi; Jernström, Eeva; Рейникайнен, Сату-Пиа

doi:10.1016/s1452-3981(23)06510-0

Cited by 46 publications

(4 citation statements)

References 17 publications

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“…The samples (5-20 µL) were injected onto the column, and the mobile phase (80% acetonitrile and 20% water) ran at 1 mL/min for 20 min at 60 • C [24]. Peaks were detected at an absorbance of 195 nm [28,29]. Two independent preparations of each solution were analyzed using different amounts of sample.…”

Section: Characterization Of Ysh By Hplcmentioning

confidence: 99%

Yemeni Sidr Honey Inhibits Cell Proliferation and Promotes Apoptosis in Human Cancer and Mouse-Derived Cell Lines

Almnayan,

Lafrenie

2024

Targets

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Honey has become popular as a potential treatment for several ailments, including cancer. Honeys from different parts of the world have been shown to have different anti-proliferative, immune-modulatory, and anti-inflammatory actions. Yemeni Sidr honey (YSH) is world-renowned for its anti-inflammatory activity and has been suggested to have anti-cancer activity, although empirical evidence is lacking. We tested three YSH samples by HPLC to show they contained similar sugars and an overlapping group of phenolic and flavonoid components, as described previously. YSH’s apoptotic and anti-proliferative activities were measured in in vitro models of cancer growth. The treatment of breast cancer cell lines (MDA-MB-231 and MCF-7), a cervical cancer cell line (HeLa), and mouse melanoma cells (B16-BL6) with 1% (w/v) YSH in media for 48–72 h almost completely inhibited cell proliferation and promoted cell apoptosis. In contrast, a non-malignant HBL-100 cell line was more resistant to treatment with YSH. This suggests that YSH may be a good candidate as an anti-cancer treatment, which requires further study.

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Section: Characterization Of Ysh By Hplcmentioning

confidence: 99%

Yemeni Sidr Honey Inhibits Cell Proliferation and Promotes Apoptosis in Human Cancer and Mouse-Derived Cell Lines

Almnayan,

Lafrenie

2024

Targets

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“…Sucrose is a simple sugar comprising one glucose molecule and fructose. The range of 260-270 nm is where sucrose absorbs the most, and at 210 nm, it is essentially undetectable [16]. Figure 8 displays the sucrose standard solution's absorbance at a 200-300 nm wavelength.…”

Section: Absorbance and Linearity Of Standard Sucrosementioning

confidence: 99%

Identification of Chlorogenic Acid, Caffeine, Melanoidin, Sucrose, and Protein Content of Local Indonesia Arabica Coffee Base on Its Cupping and Variety Variation

Misto,

Indarti,

Safitri

et al. 2024

BIO Web Conf.

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The increased demand for high-quality coffee led to the need to evaluate coffee quality for market acceptance. Indonesia has Arabica, which has the potential for high selling value. Arabica coffee varieties, including Ateng, Lini S, and Sigararutang, affect the content of compounds in coffee beans, such as chlorogenic acid, caffeine, melanoidin, sucrose, and protein. The objective of this study was to analyze the impact of Arabica coffee varieties on the compound composition and flavor characteristics of coffee. The UV-Vis spectrophotometric methods were used to determine the quantity of chlorogenic acid, caffeine, melanoidin, sucrose, and protein in different Arabica coffee varietals. The study revealed that the content of these compounds differed among the varieties. The Lini S variety had the highest chlorogenic acid and caffeine content, while the Ateng variety had the highest melanoidin, sucrose, and protein content. The varying levels of chlorogenic acid and caffeine in coffee significantly impact its flavor, resulting in a unique sour and bitter taste in coffee brew. Melanoidin, a high-molecular-weight brown compound, contributes to the malty flavor of coffee, along with sweet, nutty, caramel, and spice notes. Sucrose adds a sweet hint to coffee brew, while protein has a relatively minimal influence on coffee flavor.

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“…The UV-vis spectroscopy was further conducted to characterize the concentration of PQ-10 polymer chains in the pristine PQ-10 and PQ-10/NaOH solutions. The characteristic peak of the glucose ring, i.e., a broad UV absorption band at 270 nm, [37] is much stronger for the PQ-10/NaOH solution compared to the pristine PQ-10 solution, indicating that more PQ-10 polymer chains are dissolved and hydrated with the presence of NaOH (Figure 3b). Both XRD and UV-vis results suggest that NaOH facilitates the dissolution process of PQ-10 through breaking the intermolecular hydrogen bonds between PQ-10 polymer chains, as schematically shown in Figure 3c.…”

Section: Underlying Mechanisms Of the High Thermopower Of The Pq-10/n...mentioning

confidence: 99%

Ultrasensitive Flexible Thermal Sensor Arrays based on High‐Thermopower Ionic Thermoelectric Hydrogel

Han

Wei

et al. 2023

Advanced Science

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Ionic circuits using ions as charge carriers have demonstrated great potential for flexible and bioinspired electronics. The emerging ionic thermoelectric (iTE) materials can generate a potential difference by virtue of selective thermal diffusion of ions, which provide a new route for thermal sensing with the merits of high flexibility, low cost, and high thermopower. Here, ultrasensitive flexible thermal sensor arrays based on an iTE hydrogel consisting of polyquaternium‐10 (PQ‐10), a cellulose derivative, as the polymer matrix and sodium hydroxide (NaOH) as the ion source are reported. The developed PQ‐10/NaOH iTE hydrogel achieves a thermopower of 24.17 mV K−1, which is among the highest values reported for biopolymer‐based iTE materials. The high p‐type thermopower can be attributed to thermodiffusion of Na+ ions under a temperature gradient, while the movement of OH− ions is impeded by the strong electrostatic interaction with the positively charged quaternary amine groups of PQ‐10. Flexible thermal sensor arrays are developed through patterning the PQ‐10/NaOH iTE hydrogel on flexible printed circuit boards, which can perceive spatial thermal signals with high sensitivity. A smart glove integrated with multiple thermal sensor arrays is further demonstrated, which endows a prosthetic hand with thermal sensation for human–machine interaction.

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Ultraviolet Detection of Monosaccharides: Multiple Wavelength Strategy to Evaluate Results after Capillary Zone Electrophoretic Separation

Cited by 46 publications

References 17 publications

Yemeni Sidr Honey Inhibits Cell Proliferation and Promotes Apoptosis in Human Cancer and Mouse-Derived Cell Lines

Yemeni Sidr Honey Inhibits Cell Proliferation and Promotes Apoptosis in Human Cancer and Mouse-Derived Cell Lines

Identification of Chlorogenic Acid, Caffeine, Melanoidin, Sucrose, and Protein Content of Local Indonesia Arabica Coffee Base on Its Cupping and Variety Variation

Ultrasensitive Flexible Thermal Sensor Arrays based on High‐Thermopower Ionic Thermoelectric Hydrogel

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