In the article, Bahram Barati and his co-workers from China and Iran have engineered LEPTIN protein in silico by adding disulfide bonds. Then the effect of introducing disulfide bonds were assessed using molecular dynamic simulation study. In addition, to ensure that the mutation did not disturb the binding affinity, molecular docking was done.
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Yuchen Cao, Yongwen Yang, Xianglong Zhao, Qifen Li*
Journal of Renewable Materials, Vol.9, No.11, pp. 1823-1842, 2021, DOI:10.32604/jrm.2021.015722
（This article belongs to this Special Issue: New Trends in Sustainable Materials for Energy Conversion, CO2 Capture and Pollution Control)
Abstract The temporal and spatial characteristics of seasonal hydrogen storage will play a very important role in the coupling of multi-energy systems. This essay believes that there are several key issues worth noting in the seasonal
hydrogen storage coupled multi-energy system, namely, hydrogen storage methods, coupling models, and benefit
evaluation. Through research, this article innovatively divides seasonal hydrogen storage into two types: space
transfer hydrogen storage technology and time transfer physical property conversion hydrogen storage technology. Then sort out the two most typical seasonal hydrogen storage multi-energy system application scenarios and
their hydrogen storage unit models. Finally, it is shown that… More >
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ARTICLE
Bahram Barati1, Fatemeh Fazeli Zafar1, Shuanhu Hu1, Najmeh Fani2, Sajjad Eshtiaghi3, Shuang Wang1,*
Journal of Renewable Materials, Vol.9, No.11, pp. 1843-1857, 2021, DOI:10.32604/jrm.2021.016301
Abstract Enhancing the stability of biomolecules is one of the hot topics in industry. In this study, we enhanced the stability
of an important protein called LEPTIN. LEPTIN is a hormone secreted by fat cells playing an essential role in
body weight and composition, and its deficiency can result in several disorders. The treatment of related LEPTIN
dysfunctions is often available in the form of injection. To decrease the cost and the frequency of its applications
can be achieved by increasing its lifetime through engineering LEPTIN. In this study, to engineer LEPTIN, we
have introduced disulfide bonds. Disulfide By Design server… More >
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ARTICLE
Christian Brütting1, Julia Dreier2, Christian Bonten2, Volker Altstädt1, Holger Ruckdäschel1,*
Journal of Renewable Materials, Vol.9, No.11, pp. 1859-1868, 2021, DOI:10.32604/jrm.2021.016244
（This article belongs to this Special Issue: Polylactide Based Biopolymeric Systems)
Abstract Polylactide (PLA) bead foams show a high potential regarding their applicability in packaging or consumer products. Concerning the comparable properties of PLA to Polystyrene (PS) and the good CO2 footprint it represents
a potential alternative to petroleum-based polymer foams. However, foaming of PLA is challenging, due to its low
melt strength, therefore chemical modifiers are often used. Concerning the bead foam technology regarding PLA,
the available literature is limited so far. Within this study, the bead foaming behavior of neat and modified amorphous PLA was investigated. The material was modified by talc and an epoxy-based chain extender. These compounds have… More >
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ARTICLE
Yi Yang1, Zhaodi Wu1, Lili Ji2, Shiyao Lu2, Hua Jing2, Jiaxing Sun2, Jian Guo1, Wendong Song3, Yaning Wang2, Lu Cai4,*
Journal of Renewable Materials, Vol.9, No.11, pp. 1869-1881, 2021, DOI:10.32604/jrm.2021.015952
（This article belongs to this Special Issue: Renewable Foam Materials and Composites)
Abstract In this work, carbonized mussel shell powder (CMSP) was modified by alkyl polyglucosides (APG) and rhamnolipid (RL) to render porous biomass a lipophilic surface, which was innovatively utilized as an environmentally
friendly tableware cleaning material. The modified method was two-step hydrotherm-assisted synthesis. A contact
angle meter was used to determine the surface hydrophobic property of modified samples (MTAR). The pore and
the surface structure of CMSP and MTAR were characterized by BET, SEM, XRD, FTIR and XPS. The effect
of removing oil was tested by gravimetric method. The results showed that the surface of MTAR was more porous and fluffier… More >
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ARTICLE
Nataša Knez1, Mirko Kariž2, Friderik Knez1, Nadir Ayrilmis3,*, Manja Kitek Kuzman2,*
Journal of Renewable Materials, Vol.9, No.11, pp. 1883-1895, 2021, DOI:10.32604/jrm.2021.016128
（This article belongs to this Special Issue: Polylactide Based Biopolymeric Systems)
Abstract The effects of selected printing parameters on the fire properties of additively produced composites from neat
polylactic acid (PLA) and wood/PLA filaments were investigated. The reaction to fire of the 3D-printed specimens
was tested according to the ISO 5660-1 cone calorimeter test method. The results showed that the properties of
the specimens when exposed to fire were significantly affected by the incorporation of wood flour into the PLA
filament. It was also interesting that PLA specimens had much better reactions to fire than the wood/PLA specimens. Time to ignition was found to be much longer in the 3D-printed PLA specimens.… More >
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ARTICLE
Lei Tan, Liangxian Liu, Chaodong Liu, Weihong Wang*
Journal of Renewable Materials, Vol.9, No.11, pp. 1897-1911, 2021, DOI:10.32604/jrm.2021.016418
（This article belongs to this Special Issue: Polylactide Based Biopolymeric Systems)
Abstract As the most favorable alternative to petroleum-based polymers, polylactic acid (PLA) which is the most promising
degradable polymer has attracted increasing attention. However, the addition of cellulose to improve its strength
often results in a reduction in its toughness. In this work, microscale cellulose is first prepared from pulp fibers
by using a deep eutectic solvent, and then is used as the reinforcement of PLA. A microcrystalline cellulose
(MCC)/PLA sheet with uniform texture is obtained by the solution mixing, melt blending, hot-pressing and
cold-pressing process. The effects of MCC on the crystallization, thermal stability and mechanical properties
of the PLA… More >
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ARTICLE
Xiaohua Gu1,*, Shiwei Lyu1, Siwen Liu2
Journal of Renewable Materials, Vol.9, No.11, pp. 1913-1926, 2021, DOI:10.32604/jrm.2021.015400
（This article belongs to this Special Issue: Renewable Foam Materials and Composites)
Abstract A bi-component alcoholysis agent containing propylene glycol (PG) and ethanolamine (ETA) was used to catalyst
the degradation of the waste polyurethane rigid foam. The oligomer polyols obtained through degradation were
used as raw materials to produce recycled polyurethane rigid foam composites with lignin as reinforcing filler.
The effect of alcoholysis mass ratio on degradation was investigated by analyzing the viscosity, hydroxyl content
and chemical structure of the degradation products. The effect of lignin addition on the properties of regenerated
polyurethane rigid foam were investigated by analyzing water absorption rate, compressive strength, porosity,
thermal stability, thermal conductivity coefficient, morphology and thermal… More >
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ARTICLE
Enas H. Ali, Juman A. Naser*, Zainab W. Ahmed, Taki A. Himdan
Journal of Renewable Materials, Vol.9, No.11, pp. 1927-1939, 2021, DOI:10.32604/jrm.2021.015624
（This article belongs to this Special Issue: Current Advances in Green Nanomaterials Applications)
Abstract Polymeric nanofibers are a promising technology to protect the metal surfaces from corrosion. Through the literature search, the use of polyacrylonitrile nanofibres (PANNFs) as a corrosion inhibitor coating for aluminum
alloys has not been evaluated. This work includes the development of a new, lightweight, high surface area and
efficient coating of PANNFs that produced using electrospinning process to resist the corrosion of aluminum
alloys (AA5083) which immersed in 0.6 M NaCl at alkaline medium (pH = 12) and acidic medium (pH = 1)
at a range of temperatures (293–323) K. The PANNFs coating was successfully deposited on AA 5083 specimens,… More >
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ARTICLE
Shengquan Zhou1, Minjie Shi1,*, Wei Chen1, Yongfei Zhang1, Weijian Wang1, Haojin Zhang1, Dongwei Li2
Journal of Renewable Materials, Vol.9, No.11, pp. 1941-1957, 2021, DOI:10.32604/jrm.2021.015693
Abstract The characteristics of soil treated with cationic polyacrylamide (CPAM) mass content of 0%, 0.2%, 0.4%, 0.6%,
0.8%, and 1% were investigated through a series of laboratory tests to explore the practical engineering effect
of an expansive soil amended with environmental protection material CPAM. The results indicate that with
the increasing CPAM content, the liquid limit and plasticity index of soil decrease, the plastic limit increases,
and the free swelling ratio and loaded swelling ratio decrease. Besides, the improved soil has less disintegrating
property and better water stability. The shear strength increases as the content increases, and the optimal content
is… More >
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ARTICLE
Zhigang Wu1,#, Sicheng Chen1,#, Jiankun Liang2, Lifen Li1, Xuedong Xi3,4, Xue Deng1, Bengang Zhang3,*, Hong Lei4,*
Journal of Renewable Materials, Vol.9, No.11, pp. 1959-1972, 2021, DOI:10.32604/jrm.2021.016786
（This article belongs to this Special Issue: Renewable and Biosourced Adhesives-2021)
Abstract Alkali lignin was processed by plasma and then used in modification of phenol formaldehyde resin in this study.
Chemical structural changes of lignin which was processed by plasma as well as bonding strength, tensile property, curing performance and thermal property of the prepared phenol formaldehyde resin which was modified by
the plasma processed lignin were analyzed. Results demonstrated that: (1) Alkali lignin was degraded after the
plasma processing. The original groups were destroyed, and the aromatic rings collected abundant free radicals
and oxygen-containing functional groups like hydroxyls, carbonyls, carboxyls and acyls were introduced into
increase the reaction activity of lignin… More >
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ARTICLE
M. A. F. A. Wahab1, S. M. Sapuan1,2,*, M. M. Harussani1, M. Y. M. Zuhri1, A. A. Saleh3
Journal of Renewable Materials, Vol.9, No.11, pp. 1973-1989, 2021, DOI:10.32604/jrm.2021.016221
（This article belongs to this Special Issue: Natural Fibre Composites: Design, Materials Selection and Fabrication)
Abstract This paper presents the development process relating to the conceptual design of glass/renewable natural fibrereinforced polymer hybrid composite motorcycle side cover. Motorcycle side cover is a component frequently
made from plastic or steel that functions on covering the motorcycle parts, components and systems such as
frame, battery, electrical systems and mechanical systems. Function Analysis Systems Techniques (FAST) is used
to identify the functions of motorcycle side cover. The right-side cover of motorcycle model SYM E-Bonus
110 has been physically studied to identify the competitive benchmarking criteria. The functions and competitive
benchmarking criteria are then compiled and integrated with the environmental… More >
Open Access
ARTICLE
Yongdong Xu, Tingshu He*
Journal of Renewable Materials, Vol.9, No.11, pp. 1991-1999, 2021, DOI:10.32604/jrm.2021.015931
（This article belongs to this Special Issue: Renewable Material from Agricultural Waste and By-Product and Its Applications)
Abstract This work aims to utilize waste glass powder (WGP) as a plementary material to mitigate the strength shrinkage
caused by the alkaline accelerator. Waste glass power was used to replace cement by 0%, 10%, and 20% to evaluate
waste glass powder on the alkaline accelerator’s strength retrogradation. The results show that the strength
improvement effect of unitary glass powder is inconspicuous. Innovative methods have been proposed to use
sodium sulfate and waste glass powder synergism, using the activity of amorphous silica in glass powder. Compared with the reference group, the compressive strength of 28d mortar increases by 67% when the… More >
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ARTICLE
Jianbing Zhang1, Rongjin Liu1,2,3,*, Siyuan Fu1, Tianyu Gao1, Zhongfei Zhang1
Journal of Renewable Materials, Vol.9, No.11, pp. 2001-2013, 2021, DOI:10.32604/jrm.2021.015812
Abstract Based on aluminum sulfate, a fluorine-free and alkali-free liquid accelerator (FF-AF-A) was prepared in this
study. The setting time and compressive strength of three cement types with different FF-AF-A dosages were fully
investigated. The compatibility of the FF-AF-A with the superplasticizers were also investigated, and the early
hydration behavior and morphology of the hydration products of reference cement paste with the FF-AF-A were
explored by hydration heat, X-ray diffractometry (XRD), and scanning electron microscopy (SEM). Test results
indicated that adding the FF-AF-A at 8 wt% of the cement weight resulted in 2 min 35 s initial setting time and
6… More >
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ARTICLE
Xuying Guo1,*, Guoliang Jiang2, Saiou Fu3, Zhiyong Hu3, Junzhen Di2, Yanrong Dong2, Ying Li4
Journal of Renewable Materials, Vol.9, No.11, pp. 2015-2032, 2021, DOI:10.32604/jrm.2021.015878
Abstract To solve the problems of high Cr6+, Cr3+, SO42– and H+ concentrations, pollution and processing costs associated
with agate dyeing industrial drainage, we prepared an immobilized gel mixture for the treatment of such
drainage on the basis of microbial immobilization technology. The immobilized gel mixture was composed of
sulfate-reducing bacteria (SRB), corn cob, and nano-Fe3O4 (nFe3O4). We used a single-factor experiment to
determine the optimal dose of each matrix component. We analyzed the mechanism underlying the treatment
of agate dyeing wastewater with an immobilized gel mixture by X-ray diffraction and scanning electron microscopy detection. The results of the single-factor test… More >
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ARTICLE
Naphol Yoobanpot1,*, Prakasit Sokrai2, Natt Makul2
Journal of Renewable Materials, Vol.9, No.11, pp. 2033-2049, 2021, DOI:10.32604/jrm.2021.015849
（This article belongs to this Special Issue: Recycled Concrete Towards a Sustainable Society)
Abstract According to empirical evidence, high levels of energy and considerable amounts of natural resources are used in
the production of concrete. Given the context, this study explores self-consolidating concrete (SCC) that includes
rice husk ash (RHA) and metal furnace slag (MFS) as an alternative to cement and the natural aggregates in standard SCC mixes. In this study, mixture designs are investigated with 20 wt.% of RHA, 10–30 wt.% of MFS and
water-to-powder material ratios of 0.30 and 0.40. Based on the findings regarding the fresh-state, hardened-state,
and durability properties of the resulting SCC mixes, it is evident that the use… More >
Open Access
ARTICLE
Guibin Liu1, Meinan Wang2, Qi Yu1, Qiuyi Li2, Liang Wang2,*
Journal of Renewable Materials, Vol.9, No.11, pp. 2051-2065, 2021, DOI:10.32604/jrm.2021.015398
（This article belongs to this Special Issue: Renewable building materials and properties)
Abstract The strength and durability of concrete will be significantly reduced at high volume of mineral admixture, and the
poor early strength of concrete also still needs to be solved. In this investigation, a highly active alkaline electrolyzed waters was used as mixing water to improve the early strength and enhance the durability of green concrete
with high volume mineral admixture, the influences of alkaline electrolyzed water (AEW) on hydration activity of
mineral admixture and durability of concrete were determined. The results showed that compared with natural
tap water, AEW can accelerate early hydration process of cement in concrete and produce… More >
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