Article
Agricultural Engineering
Dakuri Ramakanth, Konala Akhila, Kirtiraj K. Gaikwad, Pradip K. Maji
Summary: A novel oxygen scavenger based on NRL and PCS showed high oxygen scavenging capacity and rate at different temperatures, demonstrating its potential as an effective alternative for commercial oxygen scavengers. The system effectively reduced oxygen content in packaging food products, providing a new option for food preservation.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Agricultural Engineering
Maycon Jhony Silva, Pedro Ivo Cunha Claro, Joyci Camila da Silva, Erivaldo Jose Scaloppi Junior, Paulo de Souza Goncalves, Maria Alice Martins, Luiz Henrique Capparelli Mattoso
Summary: This study evaluated the physicochemical, thermal, and structural properties of latex and dry rubber from four rubber tree clones, and assessed the relationship to the final properties of natural rubber (NR). Variations in chemical composition were observed among clones and tapping periods, while thermal and structural evaluations showed uniformity across all clones. Comparison among clones, extraction periods, and within the same clone allowed for analysis of performance and uniformity of the rubber produced.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Food Science & Technology
Francisco Lucas Chaves Almeida, Emanuel Neto Alves Oliveira, Elisandra Costa Almeida, Luana Nascimento da Silva, Isabelle de Lima Brito Polari, Angela Maria Tribuzy de Magalhaes Cordeiro, Bruno Raniere Lins de Albuquerque Meireles, Jossana Pereira de Sousa Guedes, Weysser Felipe Candido de Souza
Summary: This study aimed to produce and characterize different alcoholic fermented mangaba beverages and study the storage conditions. The results showed that there were differences in physicochemical properties among the beverages, and glass was found to be the best packaging material for storing the beverage.
JOURNAL OF FOOD PROCESSING AND PRESERVATION
(2021)
Article
Engineering, Biomedical
Giovana S. Pegorin, Marcel N. Leite, Marcio Antoniassi, Ana Laura D. Chagas, Luisiane A. Santana, Bruna C. Garms, Monica Y. Marcelino, Rondinelli D. Herculano, Marco Andrey Cipriani Frade
Summary: The study demonstrates that the new biomembrane from the natural rubber latex of Hancornia speciosa is non-toxic to fibroblast cells and has healing potential, making it an effective treatment for skin wounds.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2021)
Article
Polymer Science
Fabian Hernandez-Tenorio, Hector Arroyave-Miranda, Alejandra M. Miranda, Sandra M. Gonzalez, Carlos A. Rodriguez, Alex A. Saez
Summary: This study evaluated the deproteinization of NRFL using eight systems in the lower basin of the Cauca River, Colombia. The treatment containing SDS, Urea, and Ethanol showed the highest removal value of 84.4%. The deproteinizing systems decreased NRFL Zeta potentials without self-coagulation, indicating enhanced colloidal stability in DPNR latex. Additionally, bibliometric analysis highlighted the technological advances in DPRN.
Article
Agronomy
Sheila Valeria Alvares-Carvalho, Thiago Roberto Soares Vieira, Bruno Antonio Lemos de Freitas, Erica Moraes Santos de Souza, Laura Jane Gomes, Renata Silva-Mann
Summary: The study predicted the potential distribution of H. speciosa in the state of Sergipe, Brazil, and found that the species mainly occurs in coastal regions of the state, with natural presence areas reduced due to anthropic actions.
GENETIC RESOURCES AND CROP EVOLUTION
(2022)
Article
Agricultural Engineering
Yong Yee Seng, Chen Tzi Yun, Nurulhuda Abdullah, Fadzlie Wong Faizal Wong
Summary: This study developed a lysozyme assay using cloudy natural rubber latex (NRL) samples and Micrococcus lysodeikticus cells, and investigated different lysozyme recovery methods. The findings showed that the novel surfactant precipitation method had promising results in lysozyme recovery.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Review
Materials Science, Biomaterials
Nayrim Brizuela Guerra, Giovana Sant'Ana Pegorin, Miguel Henrique Boratto, Natan Roberto de Barros, Carlos Frederico de Oliveira Graeff, Rondinelli Donizetti Herculano
Summary: Recent years have seen significant advancements in the development of biomedical devices based on natural rubber latex, primarily aimed at enhancing tissue repair and designing drug release systems. These devices leverage the biological properties of latex to demonstrate good performance metrics.
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Edca Priscila Cardoso Ferreira Campos, Deysielle Maria dos Santos, Rafaela Damasceno Sa, Karina Perrelli Randau
Summary: The study aimed to anatomically and histochemically characterize the leaves of H. speciosa, revealing the presence of various compounds in the leaf blade, which contributes to quality control of the species and increasing knowledge about the Apocynaceae family.
MICROSCOPY AND MICROANALYSIS
(2021)
Article
Agricultural Engineering
Pingchang Fang, Xiangyu Long, Nat N. Kav, Yongjun Fang, Yunxia Qin, Jianghua Yang, Xiaohu Xiao
Summary: The study identified HbHXK2 and HbHXK4 as key enzymes for glucose metabolism during latex regeneration in rubber trees, with HbHXK4 showing higher efficiency in phosphorylating glucose and being strongly induced by tapping and ethephon treatments to enhance latex yield.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Shichao Xin, Yuwei Hua, Ji Li, Xuemei Dai, Xianfeng Yang, Jinu Udayabhanu, Huasun Huang, Tiandai Huang
Summary: The molecular weight and particle size of latex from different aged rubber trees vary, with tree age affecting the gene expressions related to rubber biosynthesis pathways and non-rubber isoprenoid pathways, ultimately influencing rubber quality. The study provides insights into the regulatory mechanisms of molecular weight in rubber biosynthesis and potential targets for genetic improvement of rubber quality.
Review
Agricultural Engineering
Jing Wei Ng, Nadras Othman, Nurul Hayati Yusof
Summary: This paper illustrates the basics of coagulation process and the use of different coagulation techniques in natural rubber processing. The choice of coagulation technique has a direct impact on the technological properties of unvulcanized NR and the characteristics of vulcanized NR. By understanding the coagulation process, a better selection of coagulation technique for specific applications can be made.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biotechnology & Applied Microbiology
Biraj Sarkar, Sukhendu Mandal
Summary: This study reports on a Gram-positive, non-motile, non-spore-forming actinomycete Gordonia sp. BSTG01, isolated from the bark of Hevea brasiliensis of a rubber plantation garden, which can considerably degrade both natural rubber (NR) and synthetic polyisoprene rubber (SR). The strain forms a biofilm on the rubber surface and shows rubber-dependent growth, as evidenced by changes in rubber mass and total protein content over time. Analysis using Fourier transform infrared spectroscopy revealed chemical variations on the polyisoprene backbone due to rubber degradation by the strain, indicating its potential for bioremediation.
Article
Plant Sciences
Pingchang Fang, Xiangyu Long, Yongjun Fang, Hua Chen, Ma Yu
Summary: This study investigated the role of fructokinase in rubber tree, with findings that HbFRK2 exhibited the highest expression level and affinity for fructose in laticifers, indicating a critical role in carbon flow and latex regeneration.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Forestry
Gessica Ferreira da Costa, Pablo Diego Silva Cabral, Fabiano Guimaraes Silva, Aurelio Rubio Neto, Maria Andreia Correa Mendonca
Summary: This study evaluated the genetic stability of H. speciosa plantlets and calluses using molecular markers, and found that the tissue culture techniques for H. speciosa micropropagation did not influence somaclonal variation, and the donor plants showed relatively low genetic variability.
Article
Polymer Science
Cherif M. Azzaz, Luiz H. C. Mattoso, Nicole R. Demarquette, Ricardo J. Zednik
Summary: Considerable effort has been dedicated to enhancing the properties of PVDF, a highly technologically significant piezoelectric polymer. Although high external electric fields were thought to be crucial in the formation of the beta-phase in PVDF nanofibers, it has been discovered that the crystallization process is primarily driven by mechanical stress rather than the electric field. This is evidenced by the production of structurally identical PVDF fibers with and without external electric fields.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Michael J. Silva, Alex O. Sanches, Cicero R. Cena, Haroldo N. Nagashima, Eliton S. Medeiros, Jose A. Malmonge
Summary: The electrical properties of a natural rubber-based nanocomposite filled with cellulose nanowhiskers coated with polyaniline were studied using a statistic model and transfer matrix technique. The simulations showed that the conduction process occurs via hopping and tunneling between states located inside the cellulose nanowhiskers coated with polyaniline phase in the rubber matrix.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
Thuany Garcia Maraschin, Samuel Corvello Vilar, Dario Eberhardt, Adriano Friedrich Feil, Jose Antonio Malmonge, Julian Geshev, Griselda Barrera Galland, Nara Regina de Souza Basso
Summary: This work demonstrates an effective method for obtaining hybrid nanoparticles of Ni-Fe-Mo permalloy and reduced graphene oxide (rGO). The metallic nanoparticles were spread by the sputtering technique onto the rGO substrate powder. The resulting permalloy/rGO hybrid showed improved electrical conductivity and magnetization compared to the original rGO.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Polymer Science
Alex O. Sanches, Michael J. da Silva, Luiz F. Malmonge, Nara R. S. Basso, Jose A. Malmonge
Summary: This study successfully increased the longitudinal piezoelectric coefficient of flexible piezoelectric nanocomposites by adding cellulose nanocrystals, demonstrating a significant impact of CNC insertion on the properties of nanocomposites based on ceramic and nanocrystals content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Pedro I. C. Claro, Ines Cunha, Rafaella T. Paschoalin, Diana Gaspar, Kelvi Miranda, Osvaldo N. Oliveira Jr, Rodrigo Martins, Luis Pereira, Jose M. Marconcini, Elvira Fortunato, Luiz H. C. Mattoso
Summary: This study introduces a simple and cost-effective method to produce flexible ionic conductive cellulose mats using solution blow spinning, which are used as dielectric interstrate and substrate in low-voltage devices. The electrochemical properties of these cellulose mats can be tuned through infiltration with alkali hydroxides, enabling their application in flexible, low-voltage, oxide-based field-effect transistors and pencil-drawn resistor-loaded inverters. The devices fabricated on K'-infiltrated cellulose mats show the best characteristics, suggesting potential for low-power, wearable electronics and concepts like the Internet of Things.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Aline O. Pereira, Isabella M. I. Lopes, Thiago R. Silva, Thaila Q. Correa, Rafaella T. Paschoalin, Natalia M. Inada, Ievgeniia Iermak, Francisco van Riel Neto, Juliana C. Araujo-Chaves, Alexandre Marletta, Jose R. Tozoni, Luiz Henrique C. Mattoso, Vanderlei S. Bagnato, Iseli L. Nantes-Cardoso, Osvaldo N. Oliveira Jr, Patricia T. Campana
Summary: This research demonstrates that nanofibers can be utilized as an alternative method for bacterial inactivation, instead of UV and blue irradiation. The use of PLGA nanofiber scaffolds can effectively kill Staphylococcus aureus and Escherichia coli bacteria at lower light intensities. The enhanced effect of PLGA scaffolds is attributed to their nanofiber structures, which could pave the way for a more cost-effective and environmentally friendly surface sterilization method.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Lais A. Camargo de Gonzaga, Monica C. F. Martins, Ana Carolina Correa, William M. Facchinatto, Caio M. Paranhos da Silva, Luiz A. Colnago, Luiz H. C. Mattoso
Summary: Carbon nanofibers were successfully produced from lignin using the solution blow spinning technique, with nanofibers containing up to 90% lignin obtained under specific conditions. This work provides a new approach for the preparation of novel nanofibers.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Food Science & Technology
Fernanda C. A. Oldoni, Marcela P. Bernardo, Josemar G. Oliveira Filho, Aline C. de Aguiar, Francys K. V. Moreira, Luiz H. C. Mattoso, Luiz A. Colnago, Marcos D. Ferreira
Summary: Mangoes affected by Internal Breakdown (IB) were used to produce edible films through continuous solution casting. The films exhibited different properties depending on the level of IB in the mango pulps, with those from highly affected pulps showing unique characteristics and faster composting time. The physical properties of mango edible films are influenced by the progression of IB, which alters the physiochemical composition of the pulp.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biophysics
Rafaella T. Paschoalin, Nathalia O. Gomes, Gabriela F. Almeida, Stanley Bilatto, Cristiane S. Farinas, Sergio A. S. Machado, Luiz H. C. Mattoso, Osvaldo N. Oliveira Jr, Paulo A. Raymundo-Pereira
Summary: This paper presents a wearable non-enzymatic electrochemical sensor for the detection of pesticides on the surface of agricultural and food samples. The sensor is low-cost and non-destructive, making it a promising tool for precision agriculture.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Agricultural Engineering
Anderson F. Manoel, Pedro I. C. Claro, Fabio Galvani, Luiz H. C. Mattoso, Jose M. Marconcini, Gerson L. Mantovani
Summary: In this study, cellulose nanocrystals (CNCs) were extracted from macauba palm fibers and incorporated into a thermoplastic starch matrix. The nanocomposites showed improved mechanical properties and thermal stability, with the nanocomposite containing 3.25% CNCs exhibiting the best performance.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Analytical
Juliana C. Soares, Andrey C. Soares, Monara Kaelle S. C. Angelim, Jose Luiz Proenca-Modena, Pedro M. Moraes-Vieira, Luiz H. C. Mattoso, Osvaldo N. Oliveira Jr
Summary: This paper presents a low-cost immunosensor capable of detecting the spike protein of SARS-CoV-2. The immunosensor exhibits a low limit of detection, high selectivity, and can distinguish the spike protein from interfering species in multidimensional projection plots. The excellent analytical performance of the immunosensor is validated, and its mechanism is attributed to the specific antibody-protein interaction. This immunosensor can be used for mass testing in places with limited resources.
Article
Chemistry, Physical
Danilo Bordan Istuque, Alex Otavio Sanches, Marcelo Bortoletto, Jose Antonio Malmonge, Lourdes Soriano, Maria Victoria Borrachero, Jordi Paya, Mauro M. Tashima, Jorge Luis Akasaki
Summary: This study systematically investigated the mechanism of metakaolin geopolymerization using electrical impedance spectroscopy technique. The results indicated the sensitivity of the impedance technique in identifying and describing the geopolymerization process and its changes. The geopolymerization process in highly alkaline solutions was found to consist of seven stages.
Article
Biotechnology & Applied Microbiology
Rafael M. Cardoso, Tamires S. Pereira, Murilo H. M. Facure, Danilo M. dos Santos, Luiza A. Mercante, Luiz H. C. Mattoso, Daniel S. Correa
Summary: This article discusses the method of designing plant disease sensors using different nanomaterials, revealing the attractive features and application potential of nanomaterials.
SENSORS AND ACTUATORS REPORTS
(2022)
Article
Agriculture, Multidisciplinary
Anny Manrich, Maria Alice Martins, Luiz Henrique Capparelli Mattoso
Summary: Cellulose nanocrystals can be extracted from peanut peel fibers, and the mercerization method is more efficient in eliminating proteins and phenolic compounds, resulting in high crystallinity and thermal stability. These nanocrystals contribute to adding value to peanut peel and mitigating environmental problems.
Article
Chemistry, Multidisciplinary
Juliana Coatrini Soares, Andrey Coatrini Soares, Valquiria Cruz Rodrigues, Pedro Ramon Almeida Oiticica, Paulo Augusto Raymundo-Pereira, Jose Luiz Bott-Neto, Lorenzo A. Buscaglia, Lucas Daniel Chiba de Castro, Lucas C. Ribas, Leonardo Scabini, Lais C. Brazaca, Daniel S. Correa, Luiz Henrique C. Mattoso, Maria Cristina Ferreira de Oliveira, Andre Carlos Ponce Leon Ferreira de Carvalho, Emanuel Carrilho, Odemir M. Bruno, Matias Eliseo Melendez, Osvaldo N. Oliveira Jr
Summary: This study presents genosensors for detecting an ssDNA sequence from the SARS-CoV-2 genome using four detection principles and data processing techniques such as information visualization and machine learning. Genosensors were fabricated on different electrodes for electrical and electrochemical measurements, and on Au nanoparticles for optical measurements, showing high sensitivity and selectivity in detecting complementary ssDNA sequences. The results suggest promising applications of these genosensors for point-of-care detection of SARS-CoV-2 genetic material in biological fluids.
MATERIALS CHEMISTRY FRONTIERS
(2021)
