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Preparation and characterization of cellulose‐based nanocomposite hydrogel films containing CuO/Cu2O/Cu with antibacterial activity
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-26 , DOI: 10.1002/app.49216 Koodalingam Dharmalingam 1 , Devivasha Bordoloi 2 , Ajaikumar B. Kunnumakkara 2 , Ramalingam Anandalakshmi 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-26 , DOI: 10.1002/app.49216 Koodalingam Dharmalingam 1 , Devivasha Bordoloi 2 , Ajaikumar B. Kunnumakkara 2 , Ramalingam Anandalakshmi 1
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In the present study, the influence of citric acid (CA) on hydrogel films composed of sodium carboxymethylcellulose (NaCMC), hydroxypropylmethylcellulose (HPMC), and CuO nanoflakes was investigated for their physicochemical, mechanical, thermal, and antibacterial properties. XRD patterns showed that the prepared hydrogel films revealed the crystalline phase for CuO/Cu2O/Cu at 20% CA concentration. Laser micro‐Raman spectroscopy confirmed the presence of CuO and Cu2O in the films. Increase in CA concentration decreased the swelling degree and tensile strength and increased the decomposition temperature of NaCMC, HPMC, and CuO. According to FESEM and FETEM results, shape and size of CuO nanoflakes were completely changed into spherical nanoparticles with increase in CA concentration. HRTEM and inverse Fourier transform images showed that the d‐spacing of CuO, Cu2O, and Cu were correlated with XRD results. The prepared hydrogel films exhibited significant antibacterial activity and biocompatibility against HaCaT cells. All these data recommend that the prepared hydrogel films may be used for potential wound healing applications.
中文翻译：
具有抗菌活性的含CuO / Cu2O / Cu的纤维素基纳米复合水凝胶膜的制备和表征
在本研究中，研究了柠檬酸（CA）对由羧甲基纤维素钠（NaCMC），羟丙基甲基纤维素（HPMC）和CuO纳米片组成的水凝胶膜的理化，机械，热和抗菌性能的影响。XRD图谱表明，所制备的水凝胶膜在CA浓度为20％时显示出CuO / Cu 2 O / Cu的晶相。激光显微拉曼光谱法证实了CuO和Cu 2的存在电影中的O。CA浓度的增加降低了NaCMC，HPMC和CuO的溶胀度和拉伸强度，并提高了其分解温度。根据FESEM和FETEM结果，随着CA浓度的增加，CuO纳米薄片的形状和尺寸完全变为球形纳米颗粒。HRTEM和傅立叶逆变换图像显示CuO，Cu 2 O和Cu的d间距与XRD结果相关。制备的水凝胶膜对HaCaT细胞表现出显着的抗菌活性和生物相容性。所有这些数据表明，制备的水凝胶膜可用于潜在的伤口愈合应用。
更新日期：2020-03-26
中文翻译：
具有抗菌活性的含CuO / Cu2O / Cu的纤维素基纳米复合水凝胶膜的制备和表征
在本研究中，研究了柠檬酸（CA）对由羧甲基纤维素钠（NaCMC），羟丙基甲基纤维素（HPMC）和CuO纳米片组成的水凝胶膜的理化，机械，热和抗菌性能的影响。XRD图谱表明，所制备的水凝胶膜在CA浓度为20％时显示出CuO / Cu 2 O / Cu的晶相。激光显微拉曼光谱法证实了CuO和Cu 2的存在电影中的O。CA浓度的增加降低了NaCMC，HPMC和CuO的溶胀度和拉伸强度，并提高了其分解温度。根据FESEM和FETEM结果，随着CA浓度的增加，CuO纳米薄片的形状和尺寸完全变为球形纳米颗粒。HRTEM和傅立叶逆变换图像显示CuO，Cu 2 O和Cu的d间距与XRD结果相关。制备的水凝胶膜对HaCaT细胞表现出显着的抗菌活性和生物相容性。所有这些数据表明，制备的水凝胶膜可用于潜在的伤口愈合应用。
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