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  • Open Access

    ARTICLE

    Use of Scrapped Rubber Tires for Sustainable Construction of Manhole Covers

    Sadaqat Ullah Khan1, Afzal Ahmed1,*, Sajjad Ali2, Ayesha Ayub2, Ahmed Shuja1, Muhammad Ahsan Shahid1

    Journal of Renewable Materials, Vol.9, No.5, pp. 1013-1029, 2021, DOI:10.32604/jrm.2021.014344

    Abstract Scrapped tires from vehicles are produced in large quantities. Despite numerous existing uses of scrapped tires, a large quantity ends up at the landfill sites, which contributes to environmental degradation. The development of more applications of scrapped tire usage can reduce the disposal of tires at landfill sites. This research proposes a novel use of scrapped tires by using the strips taken from scrapped tires in replacement of steel bars as reinforcement. Manhole covers were produced using scrapped tires by completely replacing the steel with scrapped tires. Four different samples of manhole covers were prepared… More >

  • Open Access

    ARTICLE

    Fabrication of Crack-Free Flattened Bamboo and Its Macro-/Micro-Morphological and Mechanical Properties

    Zhichao Lou1,2, Tiancheng Yuan1, Qiuyi Wang1, Xinwu Wu1, Shouheng Hu1, Xiaomeng Hao1, Xianmiao Liu3,*, Yanjun Li1,*

    Journal of Renewable Materials, Vol.9, No.5, pp. 959-977, 2021, DOI:10.32604/jrm.2021.014285

    Abstract This work aimed to help the bamboo industry develop methodology for producing imperfection-free bamboo boards that can serve either decorative or structural benefit to consumers seeking to engage with the bioeconomy. Specifi- cally, softened and slotted bamboo tubes were handled by a roller device with nails to render crack-free flattened bamboo board. Softening temperature and time were optimized herein according to findings regarding chemical composition and board mechanical properties. The optimal softening parameters for saturated steam heat treatment is proved to be 160°C for 8 minutes. The flattened bamboo board possesses an increased bending strength… More >

  • Open Access

    ARTICLE

    Effect of Plastocene Embedment in the Microperforated Plate on Its Acoustic Performance

    Yipu Wang1, Yonghua Wang1,2,*, Zheming Liu1, Huadong Yu1, Jinkai Xu1

    Journal of Renewable Materials, Vol.9, No.5, pp. 923-941, 2021, DOI:10.32604/jrm.2021.014138

    Abstract Noise pollution is one of the contemporary environmental pollution, which seriously damages people’s green and healthy life. In order to further improve the low frequency sound absorption performance of microperforated panel (MPP), a new plastocene coupled microperforated plate (PCMPP) is proposed. The acoustic properties of PCMPP with different apertures and perforation ratio were measured by transfer function method and compared with that of conventional MPPs. It is found that when the aperture was 0.8 mm, the peak value of sound absorption coefficient of PCMPP decreased by 150 Hz compared with MPP. In a certain range,… More >

  • Open Access

    ARTICLE

    Folate-producing rhizobacteria of Hippophae rhamnoides L. from Indian trans-Himalaya low atmospheric zone

    POOJA BHADRECHA1, MADHU BALA2,3, VIKAS KAUSHIK4, NASEEM A. GAUR5, SIMRANJEET SINGH4, JOGINDER SINGH4,*, MANOJ KUMAR6,*

    BIOCELL, Vol.45, No.2, pp. 387-394, 2021, DOI:10.32604/biocell.2021.013824

    Abstract Hippophae rhamnoides L. is a plant of immense ethnopharmacological importance and is a known source for various valuable biochemicals and nutraceuticals. The production of folate, a vitamin involved in several vital functions, in this plant is rather poorly understood. Herein, we investigate the hypothesis that rhizobial bacteria serve the plant in this essential vitamin’s biosynthesis. Bacterial strains of Bacillus, Azorhizobium, Frankia, Paenibacillus, Brevibacillus and Pseudomonas, were isolated from the rhizosphere of the plant. HPLC and LCMS were used to trace the production of intra and extra-cellular folate by representative rhizospheric bacterial strains in vitro. From the seventeen functionally characterized bacterial More >

  • Open Access

    ARTICLE

    Exosomes derived from osteoclasts under compression stress inhibit osteoblast differentiation

    YUE WANG, YUNFEI ZHENG*, WEIRAN LI*

    BIOCELL, Vol.45, No.2, pp. 427-444, 2021, DOI:10.32604/biocell.2021.013960

    Abstract Orthodontic tooth movement is triggered by orthodontic force loading on the periodontal ligament and is achieved by alveolar bone remodeling, which is regulated by intimate crosstalk between osteoclastogenesis and osteoblast differentiation. Whether the communication between osteoclasts and osteoblasts is influenced by orthodontic compression stress requires further clarification. In this study, osteoclasts were differentiated for 10 days. On day 4 of differentiation, the number of pre-osteoclasts peaked, as determined by the increased expression of RANK and the number of multinucleated cells. After 24 h of compression stress loading, on day 4, the number of osteoclasts increased,… More >

  • Open Access

    ARTICLE

    Identification of key pathways and gene expression in the activation of mast cells via calcium flux using bioinformatics analysis

    XIAOYU WANG1,2,#,*, TAKESHI YAMAMOTO2,#, MAKOTO KADOWAKI2, YIFU YANG1

    BIOCELL, Vol.45, No.2, pp. 395-415, 2021, DOI:10.32604/biocell.2021.012280

    Abstract Mast cells are the main effector cells in IgE-associated allergic disorders, and we have reported that mucosal mast cells (MMCs) play a more important role in the development of food allergy (FA). IgE with antigen or calcium ionophore stimulation can lead to the activation of MMCs via a calcium-dependent pathway. The purpose of the present study was to identify gene signatures with IgE/antigen (dinitrophenyl-bovine serum albumin, DNP-BSA) or calcium ionophore (A23187) on the activation of MMCs. Differentially expressed genes between the two types of samples were identified with microarray analysis. Gene ontology functional and pathway… More >

  • Open Access

    ARTICLE

    Down-regulation of N-methyl-D-aspartate receptor subunits 1 affects neurogenesis of hippocampal neural stem cells

    YUQING HE1, LI GUO1, JUAN DING1, HAOWEN LV1, QUANRUI MA1, CHEN LI1, YU SHAO1, QIANG LIU1, CHUN ZHANG1, HAO YANG1,2,*, JUAN LIU1,*

    BIOCELL, Vol.45, No.2, pp. 417-426, 2021, DOI:10.32604/biocell.2021.013842

    Abstract Schizophrenia is a common and serious mental illness characterized by severe impairments in thinking, emotions, and behaviors. Usually, the cognitive deficits of schizophrenia are closely associated with abnormal neurogenesis due to the hypofunction of certain neural receptors such as N-methyl-D-aspartate receptors (NMDARs), which mediates neurotransmission. However, little is known about the involvement of NMDAR1 in regulating hippocampal neurogenesis in schizophrenia. In the current study, we present evidence suggesting that NMDAR1 regulates hippocampal neurogenesis as lentivirus-mediated shRNA silencing NMDAR1 gene or blocking with MK-801 results in abnormal neurogenesis consistently found in schizophrenia. The important finding was More >

  • Open Access

    ARTICLE

    Transcriptome based high-throughput SSRs and SNPs discovery in the medicinal plant Lagenaria siceraria

    HONGYUAN ZHANG, MIN ZHANG, JIE TAN, SHUPING HUANG, GUOLIN ZHOU*, XIA CHEN*

    BIOCELL, Vol.45, No.2, pp. 371-386, 2021, DOI:10.32604/biocell.2021.013869

    Abstract Lagenaria siceraria (Molina) Standley has unique biological characteristics with high nutritional and medicinal values. It is an important pharmaceutical plant with various biologically active ingredients. Genetic improvement and deeper genomic studies require a rich resource of molecular markers. The application of next-generation sequencing technology, especially for transcriptome profiling, has greatly facilitated high throughput single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) discovery. In this study, we sequenced the transcriptome of three major cultivars of L. siceraria and obtained 64.88 GB of clean data. The assembled high-quality reads were clustered into 89,347 unigenes, which were annotated by… More >

  • Open Access

    ARTICLE

    Antimicrobial and plant growth-promoting activities of bacterial endophytes isolated from Calotropis procera (Ait.) W.T. Aiton

    MUHAMMAD HAMAYUN1,*, NASIR KHAN1, MUHAMMAD NAUMAN KHAN2, MUHAMMAD QADIR1, ANWAR HUSSAIN1, AMJAD IQBAL3, SUMERA AFZAL KHAN4, KHUSHNOOD UR REHMAN5, IN-JUNG LEE6,*

    BIOCELL, Vol.45, No.2, pp. 363-369, 2021, DOI:10.32604/biocell.2021.013907

    Abstract Bacterial endophytes are beneficial to their hosts as they can fix nitrogen in the soil and make it available to the host. Endophytic bacteria also secrete plant growth-promoting hormones to support their host plants under normal as well as stress conditions. The current study aimed to isolate endophytic bacteria from different parts of Calotropis procera, i.e., roots, stem and leaves of Calotropis procera (Ait.) W.T. Aiton. Plants were collected from the Lundkhwar, district Mardan. A total of 12 bacterial strains, i.e., six from roots, three from the stem and three from the leaves were isolated. The strains… More >

  • Open Access

    ARTICLE

    Development of new cowpea (Vigna unguiculata) mutant genotypes, analysis of their agromorphological variation, genetic diversity and population structure

    MADE DIOUF1, SARA DIALLO1, FRANÇOIS ABAYE BADIANE1,2, OUMAR DIACK1, DIAGA DIOUF1,*

    BIOCELL, Vol.45, No.2, pp. 345-362, 2021, DOI:10.32604/biocell.2021.013706

    Abstract Cowpea is one of the most important legume grains in the sub-Saharan region of Africa used for human consumption and animal feed, but its production is hampered by biotic and abiotic constraints raising the need to broaden its genetic basis. For this purpose, seeds of two cowpea varieties Melakh and Yacine were irradiated with 300 and 340 Gy of gamma-ray, respectively. The developed mutant populations were agromorphologically characterized from M5 to M7, while the genetic diversity of the latter was evaluated using 13 ISSR markers. Based on the agromorphological characterization, variation of flower color, pod… More >

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