JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2024
·Vol. 35
·期 27
·1-13
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IF 2.8
Wang Yuanyuan,Dong Xingshen,Xia Yingjing,Wang Xueqin,Liu Yanxiu,Qiao Peng,Zhang Geng
Physalis peruviana is a widely spread plant, and its calyx husk are rich in cellulose and hemicellulose, making it an ideal precursor for preparing supercapacitor electrode materials. The Physalis peruviana calyx husk is an excellent source of activated carbon and has a honeycomb-like epidermis, veins, and basic tissues. Its unique skeleton additionally assists to provide the material a three-dimensional structure. A series of porous carbon materials were synthesized from the calyx husk of Physalis peruviana via KOH as an activator. The variation of micromorphology, structure, and electrochemical properties of PCC-T materials with activation temperature has been investigated. The PCC-800 material prepared at 800 °C has a surface oxygen content of 11.63%, a rich pore structure (micro-meso-macroporous), and a large specific surface area (2703.75 m 2 g −1 ). In 6 M KOH, PCC-800 has a specific capacitance of 349.7 F g −1 at a current density of 0.5 A g −1 in a three-electrode system, and a capacitance retention of 78.9% even with a 40-fold increase in current density. The assembled symmetric supercapacitor achieved an energy density of 8.95 Wh kg −1 (250 W kg −1 ) in 6 M KOH and 17.56 Wh kg −1 (187 W kg −1 ) was obtained in 1 M Na 2 SO 4 electrolyte in a two-electrode system. In addition, the capacitance is reduced by only 1.4% after 6,000 charge–discharge cycles at a current density of 8 A g −1 .
研究领域:
材料科学
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能源科学
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植物学
✓ 已验证
产品关联
DOI
高影响因子
Biomass Conversion and Biorefinery
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2025
·
IF 4.1
Wang Yuanyuan,Dong Xingshen,Xia Yingjing,Song Hua,Liu Shetian
This study compares the effects of K 2 CO 3 and KOH on the preparation of porous carbon materials derived from the calyx husk of Physalis peruviana. Using the calyx husk of Physalis peruviana as the precursor, a series of porous carbon materials (PPCPC- x–y , PPCPC stands for porous carbon derived from the calyx husk of Physalis peruviana, where “x” represents the varying ratio of activator addition, and “y” represents the different activation temperatures) were prepared through carbonization combined with K 2 CO 3 . Experiments revealed that PPCPC-2–700 exhibits exceptional performance, characterized by abundant pore structure, high surface heteroatom content (N/O), high specific capacitance (311.3 F g −1 ), and excellent rate capability (capacitance retention of 81.0%). Compared to KOH, K 2 CO 3 offers a gentler activation process, requires less activator, operates at a lower temperature, thereby simplifying the preparation procedure and reducing the preparation time. The symmetric supercapacitor assembled from the porous carbon material activated by potassium carbonate demonstrates a high voltage window of 2.0 V in 1 M Na 2 SO 4 electrolyte and achieves a high energy density of 24.37 Wh kg −1 at a power density of 500 W kg −1 . Furthermore, this supercapacitor exhibits remarkable cycle stability in alkaline electrolyte, with a capacitance retention rate close to 98% after 12,000 charge–discharge cycles. In summary, K 2 CO 3 as an activator for the preparation of porous carbon materials exhibits significant advantages, not only facilitating a simple and efficient preparation process but also yielding materials with immense potential for application in the field of electrochemical energy storage.
研究领域:
材料科学
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能源存储
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植物资源利用
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PLANT PHYSIOLOGY
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2025
·
IF 4.1
Yijia Zhong,Zhie Zhou,Zhongping Yin,Lu Zhang,Qingfeng Zhang,Yihai Xie,Jiguang Chen
Physalis peruviana L. ( P. peruviana ) is an edible medicinal plant rich in bioactive phenolics. This study aimed to establish a hairy root (HR) culture of P. peruviana as a potential source for the synthesis of natural compounds. HRs were induced in P. peruviana using different Agrobacterium rhizogenes strains (R1601, C58C1, A4, and K599). Notably, K599 did not induce HR formation, whereas R1601, C58C1, and A4 yielded transformation frequencies of 57.78, 65.14, and 72.31%, respectively. Secondary metabolite production and antioxidant capacity were further examined in HRs induced using C58C1, R1601, and A4. It was found that A. rhizogenes R1601 induced the greatest increase (44% compared to that observed in the non-transformed culture). The methanolic extract of HRs induced by A. rhizogenes R1601 exhibited strong antioxidant capacity, with IC 50 values of 1.41 mg DE/mL and 2.33 mg DE/mL for 2,2-diphenyl-1-picrylhydrazyl and 2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid), respectively. The HR culture showed higher production of phenolic compounds and higher antioxidant capacity than the non-transformed cultures. Ultra-performance liquid chromatography time-of-flight tandem mass spectrometry was used to identify eight alkaloids, phenolics, and glycoside compounds. A. rhizogenes R1601 is emerging as a possible strain for the mass production of HR and bioactive phenolic compounds in P. peruviana .
研究领域:
植物学
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分子生物学
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药用植物研究
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Kai Sun,Lingling Ma,Jiantong Hou,Yinglan Li,Haojing Jiang,Wenhui Liu,Ruyu Cao,Linsu Zhang,Yuanqiang Guo
Selenium nanoparticles (SeNPs) have attracted considerable attention in the field of cancer therapy due to their remarkable biological activities and advantageous nanoscale properties. However, their inherent instability presents a considerable challenge for broader applications. To address this issue, the heteropolysaccharide extracted from golden berries (the fruits of Physalis peruviana ), designated as DLG, was utilized to synthesize heteropolysaccharide-conjugated selenium nanoparticles, named DLG-SeNP3. Subsequent characterization showed that the nanoparticles DLG-SeNP3 were spherical, with an average particle size of 77 nm, a zeta potential of −14.4 mV, and excellent stability under physiological pH conditions. Further biological investigations showed that DLG-SeNP3 effectively inhibited tumor cell proliferation, exhibiting an IC 50 value of 41.60 μg/mL against A549 cells, and induced apoptosis, with a proportion of 31.30 % at 100 μg/mL. Moreover, in vivo experiments demonstrated that DLG-SeNP3 not only inhibited angiogenesis, resulting in a 26.51 % decrease at 2 μg/mL, but also suppressed tumor growth and invasion, with reductions of 76.90 % and 66.67 % in the intensity and foci of red fluorescence, respectively, at 2 μg/mL. In conclusion, DLG-SeNP3, stabilized with polysaccharides derived from golden berries, shows promising potential for application in cancer treatment.
研究领域:
生物医学工程
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肿瘤学
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纳米医学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）