Yang Li^#, Xiaoying Zha^#, Xingliang Xiong, Yan Zhang, Ying Feng, Haojiang Xie, Linqing Zhang, Qifeng Jiang^*

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2021.012271

Abstract A silk fibroin (SF) spongy wound dressing incorporated with silver nanoparticles (Ag-NPs) was developed for biomedical applications. Ag-NPs were efficiently synthesized in situ via ultra violet (UV) with AgNO₃ as precursor and silk fibroin as reducing and protecting agent, respectively. After lyophilization, the formed silk fibroin spongy wound dressing (SFWD) exhibited polyporous morphology and inner lamellae structures, with uniform dispersion of Ag-NPs. The porous structure provided SFWD with the ability to absorb tissue exudatealmost 6 times of its own weight, which could guarantee the sustained release of Ag-NPs. By methanol treatment, SFWD showed much improved mechanical properties and more stable… More >

Siyi Fu^1,#, Tao Yun^2,#, Dexuan Ma¹, Bingsong Zheng¹, Dean Jiang³, Yi He^1,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2021.013262

Abstract The chloroplast NAD(P)H dehydrogenase (NDH) complex, as one of the most important photosynthesis protein complexes in thylakoid membrane, is involved in photosystem I (PSI) cyclic electron transport (CEF). Under abiotic environmental stress, the photosynthetic apparatus is susceptible to the damage caused by the strong light illumination. However, the enhancement of NDHdependent CEF could facilitate the alleviation of the damage to the photosynthetic apparatus. The NdhB subunit encoded by chloroplast genome is one of most important subunits of NDH complex and consists of 510 amino acids. Here, according to cloning ndhB from Melrose (cultivated soybean), ACC547 (wild salt-tolerant soybean), S113-6 and… More >

Zenghuan Gu¹, Aiguo Fang², Sudong Hua^1,*, Qingzhou Zhao², Lidong Sun², Fan Xia², Liying Qian³, Xiaojian Ren³

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2021.011912

Abstract The research used industrial by-products original phosphogypsum (PG) as the main raw material, slag (SG) and Portland cement (PC) as auxiliary materials, and the optimal additive amount was determined according to the compressive strength value of the sample. Comprehensively evaluate the water resistance and volume stability of the samples, and determine the best formula for new roadbed stabilized materials. The results showed that when the weight ratio of PG, slag and cement was OPG:SG:PC = 6:3:1, and mixed with 5% micro silica fume (MSF) and 3‰ hydroxypropyl methyl cellulose (HPMC), the sample’s comprehensive performance was the best, specifically, the sample’s… More >

Ilyas Renreng¹, Bakri Bakri^2,*, Sri Chandrabakty², Naharuddin²

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2021.012774

Abstract In this study, the influence of sodium hydroxide (NaOH) treatment and microwave treatment of coir fibers on the mechanical and physical properties of pressed coir fiber/epoxy composite were evaluated. The composite was fabricated with a hand lay-up method with compression molding. Before composite fabrication, pressed coir fiber was treated with NaOH and microwave treatments. Mechanical testing (tensile, flexural, and impact testing) of the composite was conducted. Then, water absorption and thickness swelling testing are also performed. The fractured composite surface morphology after the tensile test was analyzed by scanning electronic microscopy (SEM). The results revealed that tensile, flexural, and impact… More >

Nishit Savla¹, Raksha Anand², Soumya Pandit^2,*, Ram Prasad^3,*

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2020.011803

Abstract Microbial fuel cells (MFCs) are an attractive innovation at the nexus of energy and water security for the future. MFC utilizes electrochemically active microorganisms to oxidize biodegradable substrates and generate bioelectricity in a single step. The material of the anode plays a vital role in increasing the MFC’s power output. The anode in MFC can be upgraded using nanomaterials providing benefits of exceptional physicochemical properties. The nanomaterials in anode gives a high surface area, improved electron transfer promotes electroactive biofilm. Enhanced power output in terms of Direct current (DC) can be obtained as the consequence of improved microbe-electrode interaction. However,… More >

Lei Guo^1,2,3, Zi Guan¹, Lixia Guo^1,2,3,*, Weiping Shen¹, Zhilong Xue¹, Pingping Chen¹, Mingru Li¹

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2020.013415

Abstract A recycled aggregate (RA) was prepared by crushing and sieving demolished discarded concrete pavements and was subsequently tested and analyzed to determine its various physical properties. On this basis, pervious concrete (PC) mix proportions were designed. Coarse RA particles with sizes of 5–10 and 10–20 mm were selected. Concrete specimens were prepared with a water–cement ratio of 0.3, an aggregate–cement ratio of 4.5, the substitute rates of RA with 0, 25%, 50%, 75% and a single-/double-gap-graded RA mix (mass ratio of particles with sizes of 5–10 mm to particles with sizes of 10–20 mm: 1:1, 1:2, 2:1, 2:3 and 3:2).… More >

Wenbei Bi¹, Zengfeng Yan^1,*, Huan Zhao¹, Lixin Sun², Xudong Wang^3,4, Zhengmo Zhang³

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2020.012808

Abstract Murals in Mogao Grottoes consist of three parts: support layer, earthen plasters and paint layer. The earthen plasters play a key role in the preservation of murals. It is a mixture of Dengban soil, sand, and plant fiber. Two different natural fibers, hemp fiber and cotton fiber, were reinforced to earthen plasters in the same percentage to evaluate the influence on hygrothermal performance. The two types of earthen plasters were studied: one containing hemp fiber in the fine plaster (HFP) and the other containing cotton fiber in the fine plaster (CFP). Specific heat capacity, dry thermal conductivity, water vapor permeability,… More >

J. Y. Tey^*, W. H. Yeo, Y. J. King, W. O. Ding

Journal of Renewable Materials, Vol., , DOI:10.32604/jrm.2020.011870

Abstract Polylactic acid (PLA) bioplastic is a common material used in Fused Deposition Modeling (FDM) 3D printing. It is biodegradable and environmentally friendly biopolymer which made out of corn. However, it exhibits weak mechanical properties which reduced its usability as a functional prototype in a real-world application. In the present study, two PLA composites are created through coextruded with 3K carbon fibres and twisted Kevlar string (as core fibre) to form a fibre reinforced parts (FRP). The mechanical strength of printed parts was examined using ASTM D638 standard with a strain rate of 1 mm/min. It has been demonstrated that the… More >

Priyanka Jha¹, Swati Chahal^2,3, Devendra Kumar Pandey^2,3, Joginder Singh⁴, Ram Prasad^5,*, Vijay Kumar^2,3,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.09421

Abstract The use of medicinal plants for different therapeutic values is well documented in African continent. African diverse biodiversity hotspots provide a wide range of endemic species, which ensures a potential medicinal value. The feasible conservation approach and sustainable harvesting for the medicinal species remains a huge challenge. However, conservation approach through different biotechnological tools such as micropropagation, somatic embryogenesis, synthetic seed production, hairy root culture, molecular markers based study and cryopreservation of endemic African medicinal species is much crucial. In this review, an attempt has been made to provide different in vitro biotechnological approaches for the conservation of African medicinal… More >

Zi Yang, Shixian Fan, Xuehan Wei, Zhiming Zhang, Xin Gui^*, Yong Zhao^*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.013644

Abstract Cerium oxide nanoparticles (CeO₂NPs) are likely to have dramatic impacts on plant performances, yet the effects of CeO₂NPs on seed germination and seedling growth have not been fully explored. In this study, the seed germination and seedling growth of subshrub species Vitex negundo under different concentrations of CeO₂NPs (low-1 mg/L, medium-100 mg/L, high-500 mg/L) have been discussed. Results showed that: (1) The seed germination rate reduces by 11.25% and 2.5% under the low and medium concentrations of CeO₂NPs, respectively, but increased by 7.08% under the high concentration; (2) CeO₂NPs had significant effects on the growth traits (root length, shoot height… More >