Showing papers by "State University of Campinas published in 2022"
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TL;DR: The ability of exosomes to carry different cargoes including drug and molecular information to recipient cells make them a novel tool for cancer therapeutics.
95 citations
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TL;DR: In this paper, a review collates the latest information on the interaction mechanism and impact of non-thermal plasma, as an emerging processing technology, on selected physical properties, low-molecular-weight functional components, and bioactive properties of food.
56 citations
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TL;DR: In this article, the authors examined the loading of essential oils in the active films and coatings and their impact on the chemico-physio-mechanico properties and antioxidant and antibacterial potential of the numerous biopolymer films for packaging meat and derived products.
35 citations
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TL;DR: In this paper, the performance of a portable NIR spectrometer, in combination with machine learning, was investigated to estimate the freshness of quail eggs, and the best prediction models were obtained for YI and EQI, using SVMR, with RPD = 2.0-2.5 and RER >10, indicating good predictive capacity.
31 citations
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TL;DR: In this paper, a review of studies on the main methods of polycyclic aromatic hydrocarbons (PAHs) remediation from wastewater, highlighting the adsorption processes, through the application of different adsorbent nanomaterials, with a main focus on graphene-based nanommaterials, synthesized by conventional and green routes.
28 citations
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TL;DR: This survey presents theoretical foundations of pseudo-polynomial arc flow formulations, by showing a relation between their network and Dynamic Programming (DP), which allows a better understanding of the strength of these formulations, through a link with models obtained by Dantzig-Wolfe decomposition.
23 citations
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TL;DR: The second part of a comprehensive two-part series aimed at reviewing an extensive and diverse toolkit of novel methods to explore brain health and function is presented in this paper , where the authors highlight optical spectroscopy and imaging methods relevant to noninvasive human brain studies.
Abstract: This report is the second part of a comprehensive two-part series aimed at reviewing an extensive and diverse toolkit of novel methods to explore brain health and function. While the first report focused on neurophotonic tools mostly applicable to animal studies, here, we highlight optical spectroscopy and imaging methods relevant to noninvasive human brain studies. We outline current state-of-the-art technologies and software advances, explore the most recent impact of these technologies on neuroscience and clinical applications, identify the areas where innovation is needed, and provide an outlook for the future directions.
23 citations
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TL;DR: A review of the common UAV platforms and sensor systems and highlights the state-of-the-art and application examples of drone remote sensing in the oil and gas industry is presented in this paper.
22 citations
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TL;DR: A review of the biological potential of agro-industrial by-products and their bioactive compound profile targeting their application as food ingredients, including not only researches with worldwide consumed crops, but also local foodstuff, is presented in this article .
22 citations
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TL;DR: An optimized Fuzzy Logic Control applied to modular all-wheel-drive vehicles, focusing on Electric Vehicles (EVs) and Hybrid electric Vehicles (HEV) powered configurations, showed an improvement in behavior to the vehicle without control.
21 citations
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TL;DR: Forster-Carneiro and Sganzerla as discussed by the authors acknowledge the database support and samples of materials from NIPE/NIEPE-UNICAMP/UFMT, process numbers 91.752/01-P-17839-2019 and 91759/01/P-18069/2019.
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TL;DR: A minimum torque ripple point tracking (MTRPT) that actuates over the turn-off angle is proposed through an adaptation from the steepest descent maximum power point tracking algorithm, aiming for enhanced torque regulation.
Abstract: Switched reluctance motors are frequently quoted for electric and hybrid electric vehicle traction. However, high torque ripple is a common restraining disadvantage. This article proposes a design method for model following sliding mode as cruise controller, considering a direct instantaneous torque controller as part of the controlled plant. In addition, a back-electromotive force cancelation is incorporated by modifying the torque reference using the developed model. A minimum torque ripple point tracking (MTRPT) that actuates over the turn- off angle is proposed through an adaptation from the steepest descent maximum power point tracking algorithm. The turn- on angle is also controlled, aiming for enhanced torque regulation. The cruise controller is Lyapunov stable, robust to parameter variations, and is capable of rejecting load disturbances. Experimental results show that the MTRPT convergence time is around $\text{2.5 s}$ for a load step and around $\text{1.625 s}$ for a speed step. Besides, the speed tracking capability of the proposed system returns an MAE of 0.9223% and 1.0884% for the ECE-R15 and for the EUDC driving schedules, respectively. The MTRPT is capable of reducing the torque ripple by 14.6% in low speeds (ECE-R15) and by 10.1% at high speeds (EUDC). The results show that the proposed system is well founded for electric and hybrid electric vehicles applications.
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TL;DR: In this paper, three modified BET equations (Aguerre-Suarez-Viollaz, Pantuso-Tolaba-Aguero, and Aranovich-Donohue) are evaluated against published isotherm data of dysprosium, reactive blue 5G, and naphthenic acid.
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TL;DR: In this article , a microchip capillary electrophoresis (MCE) was used to detect a mixture of K+, Na+, and Li+ with good resolution, efficiency, precision, linearity, and limits of detections.
Abstract: For the first time, the fused deposition modeling (FDM) 3D printing method was used to fabricate a microchip capillary electrophoresis (MCE) with channel dimensions (58 × 65 µm) below 100 µm. Moreover, electrodes to conduct capacitively coupled contactless conductivity detection (C4D) were integrated into the MCE using three conductive thermoplastic filaments containing graphene, carbon black, and copper. After optimizing the parameters for multi-material printing, the MCE-C4D device was fabricated in a single (one step) 3D printing process using an FDM 3D printer equipped with two extrusion nozzles. An optimization design method allowed finding that the distance (gap) between the electrodes of around 1 mm provided the maximum response of the C4D. The optimized frequency of the excitation signal applied in the C4D electrodes depended on the composition of the conductive filament used to print the electrodes. The optimized frequencies for the electrodes printed with thermoplastic polymers containing copper and carbon black were 268 and 384 kHz, respectively. The MCE-C4D successfully separated and detected a mixture of K+, Na+, and Li+ with good resolution, efficiency, precision, linearity, and limits of detections (LOD) of 10.2, 11.6, and 14.1 µmol L-1, respectively.
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TL;DR: In this article, a non-invasive and rapid method to determine the authenticity of plant-based protein powders (free of soy, lactose, and gluten), and classify possible adulterations in the powders using near-infrared spectroscopy (NIR) and chemometric tools was developed.
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TL;DR: In this paper, the authenticity of coriander oil and adulteration with other commercial vegetable oils such as palm olein, canola oil and soybean oil were identified.
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TL;DR: In this paper , the effect of nano-SiO2 load on the properties of SA/HC blend films was investigated and the results indicated an improvement in the general mechanical and thermal behavior.
Abstract: Biopolymer-based films have become leading alternatives to traditional fossil-based packaging plastics. Among the countless types of biopolymers with potential for such applications, films containing hydrolyzed collagen in their composition were scarcely explored. This study determined the effect of different loads of nano-SiO2 (0, 2, 6, 8 and 10% w/w of sodium alginate) in the sodium alginate (SA) and hydrolyzed collagen (HC) blend films in terms of structure, thickness, mechanical properties, and thermal stability. The results indicated an improvement in the general mechanical and thermal behavior. Tensile strength increased from 18.2 MPa (control sample) to 25.4 MPa for the SA/HC film incorporated with 10% nano-SiO2. In the same condition, the film's elongation at break improved impressively (from 19.5 to 35.8%). Thermal stability improved slightly for all proportions of nano-SiO2. Therefore, the addition of nano-SiO2 can be an easy and simple strategy to improve crucial properties of SA/HC blend films, increasing its performance for future application as sustainable packaging.
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TL;DR: A summary of the recently developed strategies for curcumin delivery to different types of cancer cells through encapsulation in poly(lactic-co-glycolic acid) (PLGA) nanoparticles is provided in this paper .
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TL;DR: This review provides up-to-date information on advances in the application of aPDT in the agri-food sector, including suitable photosensitizers, sources of light, microbial inactivation efficiency, the role of food matrix composition, potentiation effects, inactivation mechanisms, and potential or prospective applications in the food industry and in other areas of agriculture.
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TL;DR: In this paper, the authors employ a multi-objective optimization for the ICEV drivetrain design and gear shifting control aiming at the minimization of fuel consumption, exhaust emissions and gearbox power losses.
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TL;DR: In this paper, the authors examined how build orientation and heat treatments affect microstructure, and consequently, the mechanical properties obtained from tensile and fracture toughness tests of additively manufactured AlSi10Mg samples.
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TL;DR: In this article , a bibliometric review evaluated the research progress, trends, updates, and hotspots on hydrogen production from dark fermentation and provided future directions for applying dark fermentation to produce hydrogen as a sustainable and renewable fuel in a biorefiney concept.
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TL;DR: In this article, an energy balance-based machine learning approach is explored, considering the Local Climate Zones (LCZ), to describe the daily cycle of the heat flux components and predict the nocturnal Urban Heat Island (UHI) during an HW event.
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TL;DR: In this paper, the authors studied the effect of solvent composition and temperature on the global extraction, total phenolic, reducing sugars yields, and antioxidant capacity of acai by-product.
Abstract: Acai is one of the leading Brazilian Amazon fruits, which pulp is consumed throughout the country and exported to several others. Acai by-product represents 80–90% berry mass. In order to reuse the by-product, pressurized liquid extraction (PLE) was applied. Solvent composition and temperature were studied through their effect on the global extraction, total phenolic, reducing sugars yields, and antioxidant capacity. High temperature (115 oC) and ethanol+water (75 wt%) favored obtaining antioxidant extracts. These PLE conditions were kinetically studied and economically evaluated. The end of the first theoretical extraction period (tCER) resulted in the extracts’ minimum cost of manufacturing (COM). Regardless of the extraction time, scale-up reduced the COM, advising the process at large scales. A sensitivity study was carried out considering different extract selling prices as scenarios. All the estimated selling prices showed encouraging economic indexes. PLE proved to be technically and economically feasible to obtain acai by-product extracts with confirmed antioxidant capacity.
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TL;DR: In this paper , an energy balance-based machine learning approach is explored, considering the Local Climate Zones (LCZ), to describe the daily cycle of the heat flux components and predict the nocturnal Urban Heat Island (UHI) during an HW event.
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TL;DR: In this paper, mild sonoprocessing improved orange juice's kinetic stability preserving its ascorbic acid (vitamin C) content, but ultrasound energy densities could not promote the inactivation of pectin methylesterase (PME) in the orange juice samples.
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TL;DR: The rapidly developing microbiome research landscape was studied by a global mapping excercise and bibliometric analysis as discussed by the authors, where the authors adopted a systems approach connecting microbiomes and research initiatives in divergent fields to create understanding on how microbiomes can be modulated for desirable functions as a basis of sustainable, circular bioeconomy.
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TL;DR: The frequencies of 19 respiratory pathogens other than SARS-CoV-2 were assessed in 6,"?>235 Brazilian individuals tested for COVID-19 as mentioned in this paper, and only 83 individuals who tested positive for SARS CoV2 had codetection of other pathogens.
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TL;DR: In this paper, the effect of pectin (PE) biodegradable nanocomposite coating containing curcumin nanoparticles (CNP) and ajowan (Carum copticum) essential oil nanoemulsion (ANE) combined with low-dose gamma irradiation on microbial, physiochemical, and sensorial qualities of lamb loins during refrigeration conditions was assessed.
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TL;DR: In this paper , five distinct hemp seed protein concentrates (55.9-76.4% protein, d.b.) were investigated and compared for their functionality and protein molecular properties.