The Preparation and Characterization of Tourmaline-Containing Functional Copolymer p (VST/MMA/BA)

Hu, Yingmo; Li, Yunhua; Li, Mengcan; Lv, Guocheng; Liu, Quan; Hou, Chao

doi:10.1155/2018/5031205

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…Tourmaline is a ring-shaped borosilicate complex ore mineral with crystalline compound and molecular formula of Na (Mg, Fe, Mn, Li, Al) 3 Al 6 (BO 3 ) 3 Si 6 O 18 (O, OH, F) 4 ; it contains trace elements such as V, Cr, Zr, Mn, Ti, Sr and Ga. This complex mineral compound has characteristics of far-infrared radiation emission, spontaneous polarizability, and protective effects against electromagnetic wave, and anion -releasing effect; it is widely used in healthcare facilities [28][29][30]. Numerous studies have shown that emission of infrared and negative ions from tourmaline has positive effects against several inflammatory diseases and dermatological diseases including psoriasis and AD [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Effects of mineral complex material treatment on 2,4- dinitrochlorobenzene-induced atopic dermatitis like-skin lesions in mice model

Bajgai

Jing

Fadriquela

et al. 2021

BMC Complement Med Ther

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Background Atopic dermatitis (AD) is a chronic allergic inflammatory skin disease characterized by complex pathogenesis including skin barrier dysfunction, immune-redox disturbances, and pruritus. Prolonged topical treatment with medications such as corticosteroids, calcineurin inhibitors, and T-cell inhibitors may have some potential side-effects. To this end, many researchers have explored numerous alternative therapies using natural products and mineral compounds with antioxidant or immunomodulatory effects to minimize toxicity and adverse-effects. In the current study, we investigated the effects of mineral complex material (MCM) treatment on 2, 4-dinitrochlorobenzene (DNCB)-induced AD-like skin lesions in SKH-1 hairless mice. Methods Animals were divided into four groups; normal control (NC), negative control treated with DNCB only (DNCB only), positive control treated with DNCB and tacrolimus ointment (PC) and experimental group treated with DNCB and MCM patch (MCM). Skin inflammation and lesion severity were investigated through analyses of skin parameters (barrier score and strength, moisture and trans-epidermal water loss level), histopathology, immunoglobulin E, and cytokines. In addition, reactive oxygen species (ROS), nitric oxide (NO), glutathione peroxidase (GPx), and catalase (CAT) levels were measured in both serum and skin lysate. Results Our results demonstrates that MCM patch improved the progression of AD-like skin lesions by significantly increasing skin barrier strength and decreasing trans-epidermal water loss. Additionally, dermal administration of MCM patch significantly reduced epidermal thickness, ROS, and NO levels in skin lysate. Furthermore, we found that MCM suppressed the levels of AD-involved (Th1 and Th2) cytokines such as IL-2, IFN-γ, and IL-4 in blood. In addition, the levels of other Th1, and Th2 and inflammatory cytokines such as IL-1β, TNF-α, IL-6, IL-12(p70) and IL-10 were found lowest in the MCM group than in the DNCB only and PC groups. Moreover, we found total serum IgE level significantly increased after DNCB treatment, but decreased in the PC and MCM groups. Conclusion Taken together, our findings suggest that MCM application may have beneficial effects either systemic or regional on DNCB-induced AD lesional skin via regulation of the skin barrier function and immune-redox response.

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Section: Introductionmentioning

confidence: 99%

Effects of mineral complex material treatment on 2,4- dinitrochlorobenzene-induced atopic dermatitis like-skin lesions in mice model

Bajgai

Jing

Fadriquela

et al. 2021

BMC Complement Med Ther

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“…The effects of tourmaline on asphalt density, dynamic stability, and flow value were analyzed, and the micro-mechanism of tourmaline modified asphalt was also studied [25][26][27][28]. Organic tourmaline exhibits excellent storage stability due to its reduced surface polarity, which pioneer a new way for the development of mineral and copolymer composites [29]. Çelikbilek et al evaluated the performances of Tourmaline modified asphalt (TMA) mixture by the means of Grey multi-criteria evaluation model.…”

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confidence: 99%

Research on the Rheological Characteristics and Aging Resistance of Asphalt Modified with Tourmaline

Dong

Wang

et al. 2019

Materials

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Tourmaline modified asphalt (TMA) binders were prepared with different modifier types and contents in this research. The routine properties, rheological properties, and aging resistance were evaluated to research the function of tourmaline on the performances of asphalt binders. Test results show that the storage stability can be improved significantly by the smaller particle size and negative-ion treated surface of tourmaline modifier. It indicates that the stiffness and rutting-resistance of TMA binder can be enhanced significantly, and the elastic component of the viscoelastic characteristic can also be increased. Moreover, the complex viscosity and the Zero Shear Viscosity (ZSV) values of tourmaline modified asphalt are increased within the test frequency range, which results in the improvement of deformation resistance of tourmaline modified asphalt. When mixed with asphalt, the tourmaline modifier maintains a two-phase structure, which results in the good rheological property for tourmaline modified asphalt.Materials 2020, 13, 69 2 of 13 powder on the performance of asphalt binders were studied [22]. The influence of calcium carbide modifier on the performances of pavement was emphatically studied [23,24]. The effects of tourmaline on asphalt density, dynamic stability, and flow value were analyzed, and the micro-mechanism of tourmaline modified asphalt was also studied [25][26][27][28]. Organic tourmaline exhibits excellent storage stability due to its reduced surface polarity, which pioneer a new way for the development of mineral and copolymer composites [29]. Çelikbilek et al. evaluated the performances of Tourmaline modified asphalt (TMA) mixture by the means of Grey multi-criteria evaluation model. It was indicated that the model had good reliability and practicability in TMA mixture, which can provide a new theoretical basis for the widely application of TMA [30].The utilization of tourmaline in relative fields has become more and more popular. However, the comprehensive research on the properties of TMA and its mixture is still limited. The main work of this research is to study the properties of TMA under different modifier types and contents. The influences of tourmaline on storage stability, rheological characteristics, aging resistance, and microscope structure of TMA are all analyzed by various experiment methods.

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Analysis of radioactivity of negative-ion powder and determination of 232Th

et al. 2023

J Radioanal Nucl Chem

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The Preparation and Characterization of Tourmaline-Containing Functional Copolymer p (VST/MMA/BA)

Cited by 4 publications

References 31 publications

Effects of mineral complex material treatment on 2,4- dinitrochlorobenzene-induced atopic dermatitis like-skin lesions in mice model

Effects of mineral complex material treatment on 2,4- dinitrochlorobenzene-induced atopic dermatitis like-skin lesions in mice model

Research on the Rheological Characteristics and Aging Resistance of Asphalt Modified with Tourmaline

Analysis of radioactivity of negative-ion powder and determination of 232Th

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