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  • Open Access

    REVIEW

    Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

    Kakudji Kisimba1, Anand Krishnan2,*, Mbuso Faya1, Kahumba Byanga3, Kabange Kasumbwe4, Kaliyapillai Vijayakumar5, Ram Prasad6,*

    Journal of Renewable Materials, Vol.11, No.6, pp. 2575-2591, 2023, DOI:10.32604/jrm.2023.026159

    Abstract Nanoparticles have distinct properties that make them potentially valuable in a variety of industries. As a result, emerging approaches for the manufacture of nanoparticles are gaining a lot of scientific interest. The biological pathway of nanoparticle synthesis has been suggested as an effective, affordable, and environmentally safe method. Synthesis of nanoparticles through physical and chemical processes uses unsafe materials, expensive equipment and adversely affects the environment. As a result, in order to support the increased utilization of nanoparticles across many sectors, nanotechnology research activities have shifted toward environmentally safe and cost-effective techniques that outperform chemical and/or biological procedures. The use… More > Graphic Abstract

    Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

  • Open Access

    ARTICLE

    Formaldehyde-Free Wood Composites from Soybean Protein Adhesive

    Richard C. Ferguson, Sharathkumar K. Mendon, James W. Rawlins*, Shelby F. Thames

    Journal of Renewable Materials, Vol.2, No.3, pp. 166-172, 2014, DOI:10.7569/JRM.2013.634133

    Abstract Commercial particleboards are currently synthesized by blending wood furnish with formaldehyde-based resins and curing them under a combination of heat and pressure. Particleboards manufactured with urea-formaldehyde resin are known to liberate formaldehyde during their service lives. Formaldehyde’s carcinogenicity has prompted the search for environmentally-friendly resins for wood composite manufacture. Soybean protein-based adhesives have been developed as a renewable and formaldehyde-free replacement for urea-formaldehyde resins. Particleboards processed using the soybean protein adhesive matched or exceeded performance criteria of M-2-grade commercial particleboards when evaluated as per American National Standards Institute (ANSI) specifi cations. More >

  • Open Access

    ARTICLE

    Green Method, Optical and Structural Characterization of ZnO Nanoparticles Synthesized Using Leaves Extract of M. oleifera

    José Vulfrano González-Fernández1,*, Diego David Pinzón-Moreno1, Antony Alexander Neciosup-Puican2, María Verónica Carranza-Oropeza1

    Journal of Renewable Materials, Vol.10, No.3, pp. 833-847, 2022, DOI:10.32604/jrm.2021.017377

    Abstract ZnO nanoparticles (ZnO-NP) present innovative optical, electrical, and magnetic properties that depend on specific characteristics, e.g., size, distribution, and morphology. Thus, these properties are essential to address various applications in areas such as electronics, medicine, energy, and others. In addition, the performance of this ZnONP depends of their preparation which can be done by chemical, physical, and biological methods. Meanwhile, nowadays, the main interest in developing ZnO-NP synthesis through biological methods bases on the decrease of use of toxic chemicals or energy applied to the procedures, making the process more cost-effective and environmentally friendly. However, the large-scale production of nanoparticles… More >

  • Open Access

    ARTICLE

    Green Synthesis of Silver Nanoparticles Using Annona diversifolia Leaf Extract and Their Antimicrobial Application

    Rogelio Solorzano-Toala1, Daniel Gonzalez-Mendoza2,*, Benjamin Valdez-Salas3, Vianey MendezTrujillo4, Federico Gutierrez-Miceli1, Ernesto Beltran-Partida3, Olivia Tzintzun-Camacho2

    Journal of Renewable Materials, Vol.8, No.9, pp. 1129-1137, 2020, DOI:10.32604/jrm.2020.09845

    Abstract The aim of this study was the synthesis of silver nanoparticle using Annona diversifolia Safford. The silver nanoparticles obtained were analyzed by spectroscopic methods and dynamic light scattering methods. The inhibition of AgNPs was evaluated against Bacillus cereus, Klebsiella pneumoniae and Enterobacter aerogenes. The results showed that AgNPs have high values at 3 keV and particle size between 45 to 58 nm with a homogenous morphology. The AgNPs showed growth inhibition against Klebsiella pneumoniae and Enterobacter aerogenes. Therefore studies are needed to confirm the potential antimicrobial of different AgNP from A. diversifolia in Gram negative and Gram positive bacteria. More >

  • Open Access

    ARTICLE

    Application of the Principles of “Green Chemistry” for the Synthesis of 10-Undecylenic Aliphatic Esters with Antimicrobial Activity

    Dragomir Vassilev1,*, Nadezhda Petkova2, Yulian Tumbarski3, Milena Koleva1, Panteley Denev2

    Journal of Renewable Materials, Vol.8, No.6, pp. 675-686, 2020, DOI:10.32604/jrm.2020.09279

    Abstract Undenicylic acid (10:1) is known as an antifungal agent and an active ingredient of many topical medicines [1–6]. The present research investigates the preparation of aliphatic esters of 10-undecylic acid with butanol and i-amyl alcohol by the conventional and ultrasound-assisted syntheses as well as the structural elucidation of the resulting compounds, by FTIR and NMR spectroscopy. The antimicrobial properties of the obtained 10-undecylenic esters were tested against Gram-positive bacteria (Staphylococcus aureus; Enterococcus faecalis; Listeria monocytogenes), Gram-negative bacteria (Escherichia coli; Salmonella sp.) and filamentous fungi (Penicillium sp.; Aspergillus niger; Fusarium moniliforme) using the conventional agar-well diffusion assay. The results demonstrated that… More >

  • Open Access

    ARTICLE

    Encapsulation of Bacterial Metabolic Infiltrates Isolated from Different Bacillus Strains in Chitosan Nanoparticles as Potential Green Chemistry-Based Biocontrol Agents against Radopholus similis

    Hilary Ureña-Saborío1*, Sergio Madrigal-Carballo1, Jorge Sandoval2, José R. Vega-Baudrit3, Alejandro Rodríguez-Morales2

    Journal of Renewable Materials, Vol.5, No.3-4, pp. 290-299, 2017, DOI:10.7569/JRM.2017.634119

    Abstract Currently there is a trend towards reducing the use of agrochemicals in developing countries. However, they are still being applied intensively in tropical countries. Thus, there is a trend towards developing new products based on natural chemicals for pest control, leading to second-generation pesticides incorporating nano- and biotechnologies. Costa Rica is one of the largest producers of bananas in the world. One of the most important pests of banana and plantain crops is the burrowing nematode, Radopholus similis (Cobb) Thorne. Highly toxic chemical compounds have traditionally been used to control this specific pest in banana plants, which can have dangerous… More >

  • Open Access

    ARTICLE

    Renewable Additives that Improve Water Resistance of Cellulose Composite Materials

    Heather L. Buckley1*, Caitlin H. Touchberry2, Jonathan P. McKinley2, Zachary S. Mathe1, Hurik Muradyan1, Hannah Ling2, Raj P. Fadadu1, Martin J. Mulvihill1, Susan E. Amrose2

    Journal of Renewable Materials, Vol.5, No.1, pp. 1-13, 2017, DOI:10.7569/JRM.2016.634109

    Abstract Waste cardboard is an underutilized resource that can be redirected for the creation of safer and higher quality building materials for low-income housing in the developing world, as well as to produce better materials for indoor environments in developed-world contexts. Using a renewable biobased binder and benign additives, we have improved the water resistance of a cardboard-based composite material, overcoming one of the major barriers to scaling and adoption of this class of materials. Resistance to water uptake was significantly increased with several additives and was increased over 900-fold in the best case. Strength and water uptake over time are… More >

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