nanoemulsions

纳米乳液
  • 文章类型: Journal Article
    炎症过程中的疾病是许多疾病的发病机理的基础。利用天然产物作为抗炎剂是传统医学和科学研究中公认的方法,研究一致证明了它们在控制炎症方面的功效。Pequi油,源自巴西Caryocar,是生物活性化合物的丰富来源,包括脂肪酸和类胡萝卜素,表现出免疫调节潜力。本系统综述旨在全面总结有关匹奎油抗炎活性的科学证据。在著名的数据库中进行了广泛的文献检索(Scopus,BVS,CINAHL,科克伦,LILACS,Embase,MEDLINE,ProQuest,PubMed,FSTA,ScienceDirect,和WebofScience)。使用体外评估粗品油的免疫调节活性的研究,体内模型,或包括临床试验。在确认的438篇文章中,10符合严格的纳入标准。这些研究共同阐明了胡椒油调节基因表达的潜力,调节促炎和抗炎介质的循环水平,减轻氧化应激,免疫细胞迁移,和炎症的主要迹象。此外,在不同的评估模型中,观察到PEqui油的毒性可以忽略不计,甚至没有毒性。值得注意的是,注意到石油化学特征的变化,取决于提取方法和地理来源。此系统评价强烈支持pecqui油在控制炎症过程中的实用性。然而,需要进一步的比较研究,涉及通过不同方法获得的来自不同地区的油,以加强我们对其有效性和安全性的理解。
    Disorders in the inflammatory process underlie the pathogenesis of numerous diseases. The utilization of natural products as anti-inflammatory agents is a well-established approach in both traditional medicine and scientific research, with studies consistently demonstrating their efficacy in managing inflammatory conditions. Pequi oil, derived from Caryocar brasiliense, is a rich source of bioactive compounds including fatty acids and carotenoids, which exhibit immunomodulatory potential. This systematic review aims to comprehensively summarize the scientific evidence regarding the anti-inflammatory activity of pequi oil. Extensive literature searches were conducted across prominent databases (Scopus, BVS, CINAHL, Cochrane, LILACS, Embase, MEDLINE, ProQuest, PubMed, FSTA, ScienceDirect, and Web of Science). Studies evaluating the immunomodulatory activity of crude pequi oil using in vitro, in vivo models, or clinical trials were included. Out of the 438 articles identified, 10 met the stringent inclusion criteria. These studies collectively elucidate the potential of pequi oil to modulate gene expression, regulate circulating levels of pro- and anti-inflammatory mediators, and mitigate oxidative stress, immune cell migration, and cardinal signs of inflammation. Moreover, negligible to no toxicity of pequi oil was observed across the diverse evaluated models. Notably, variations in the chemical profile of the oil were noted, depending on the extraction methodology and geographical origin. This systematic review strongly supports the utility of pequi oil in controlling the inflammatory process. However, further comparative studies involving oils obtained via different methods and sourced from various regions are warranted to reinforce our understanding of its effectiveness and safety.
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  • 文章类型: Journal Article
    基于纳米乳液的技术在食品工业中发展迅速,特别是在生物活性化合物的输送系统的设计。这篇综述提出了对组成的深入理解,函数,纳米乳液的抗菌机理和作为防腐剂对鱼类腐败的成功应用。结果表明,在食品级纳米乳液包封体系中掺入生物活性物质可以提高其稳定性,控制它的释放,通过多种靶标抑制微生物的生长和繁殖。这些纳米乳液可以通过减少微生物负荷和延缓蛋白质和脂质的氧化来抑制鱼类腐败,从而保持鱼的质量属性。此外,纳米乳液可以与真空包装相结合,以增强微生物破坏,保持营养价值,延长鱼的保质期。因此,纳米乳液被认为是一种有前途的策略,以抑制鱼类腐败。
    Nanoemulsion-based technology is developing rapidly in the food industry, especially in the design of delivery systems for bioactive compounds. This review presents an in-depth understanding of the composition, function, antibacterial mechanism and successful application of nanoemulsions as preservative agents against fish spoilage. The results showed that the inclusion of bioactive substances in the food-grade nanoemulsions encapsulation system could improve its stability, control its release, inhibit the microbial growth and reproduction through a variety of targets. These nanoemulsions can inhibit fish spoilage via reducing microbial load and retarding the oxidation of proteins and lipids, thereby maintaining quality attributes of fish. In addition, nanoemulsions could be coupled with vacuum package for enhancing microbial destruction, retaining nutritional value and extending the shelf-life of fish. Accordingly, nanoemulsions are suggested as a promising strategy to inhibit fish spoilage.
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  • 文章类型: Journal Article
    在过去的几十年里,癌症被认为是临床挑战,是全世界死亡的主要原因之一。尽管已经开发了许多治疗癌症的方法,化疗仍然是临床上使用最多的。然而,可用的基于化学疗法的治疗有几个注意事项,包括缺乏特异性,不良反应以及癌症复发和转移,这主要解释了患者生存率低。脂质纳米颗粒(LNP)已被用作化学疗法的有前途的纳米载体系统,以克服当前应用的癌症治疗治疗策略的挑战。将化疗剂加载到LNP中可以改善不同方面的药物递送,包括肿瘤的特异性靶向,并通过选择性释放药物的有效载荷来提高肿瘤部位的生物利用度,从而减少它们对健康细胞的不良副作用。这篇综述文章概述了许多癌症治疗中的临床挑战,并描述了LNP在实现最佳治疗结果中的作用。此外,该综述全面描述了迄今为止在癌症治疗中用作纳米载体的许多LNPs类别,以及LNP在其他医学和研究领域的未来应用潜力。
    Over the last few decades, cancer has been considered a clinical challenge, being among the leading causes of mortality all over the world. Although many treatment approaches have been developed for cancer, chemotherapy is still the most utilized in the clinical setting. However, the available chemotherapeutics-based treatments have several caveats including their lack of specificity, adverse effects as well as cancer relapse and metastasis which mainly explains the low survival rate of patients. Lipid nanoparticles (LNPs) have been utilized as promising nanocarrier systems for chemotherapeutics to overcome the challenges of the currently applied therapeutic strategies for cancer treatment. Loading chemotherapeutic agent(s) into LNPs improves drug delivery at different aspects including specific targeting of tumours, and enhancing the bioavailability of drugs at the tumour site through selective release of their payload, thus reducing their undesired side effects on healthy cells. This review article delineates an overview of the clinical challenges in many cancer treatments as well as depicts the role of LNPs in achieving optimal therapeutic outcomes. Moreover, the review contains a comprehensive description of the many LNPs categories used as nanocarriers in cancer treatment to date, as well as the potential of LNPs for future applications in other areas of medicine and research.
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  • 文章类型: Journal Article
    纳米乳液的制造和应用,用于掺入和递送多种生物活性化合物,特别是疏水性物质,正在成为越来越多的研究焦点,有可能改善个人的营养和健康状况。纳米技术方法的不断进步有助于使用多种生物聚合物(如蛋白质)创建纳米乳液,肽,多糖,和脂质来提高稳定性,生物活性,活性亲水和亲脂化合物的生物利用度。本文提供了用于创建和表征纳米乳液的各种技术以及理解其稳定性的理论的全面概述。本文还强调了纳米乳液在提高营养食品的生物可及性方面的进步,以帮助提高其在各种食品和药物制剂中的潜在用途。
    The fabrication and application of nanoemulsions for incorporating and delivering diverse bioactive compounds, particularly hydrophobic substances, is becoming an increasing focus of research with the potential to improve the nutritional and health status of individuals. Constant advancements in nanotechnological approaches aid in the creation of nanoemulsions using diverse biopolymers such as proteins, peptides, polysaccharides, and lipids to improve the stability, bioactivity, and bioavailability of active hydrophilic and lipophilic compounds. This article provides a comprehensive overview of various techniques used to create and characterize nanoemulsions as well as theories for understanding their stability. The article also highlights the advancement of nanoemulsions in boosting the bioaccessibility of nutraceuticals to help advance their potential use in various food and pharmaceutical formulations.
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  • 文章类型: Journal Article
    Submicron droplets are ubiquitous in nature and widely applied in fields such as biomedical diagnosis and therapy, oil recovery and energy conversion, among others. The submicron droplets are kinetically stable, their submicron size endows them with good mobility in highly constricted pathways, and the high surface-to-volume ratio allows effective loading of chemical components at the interface and good heat transfer performance. Conventional generation technology of submicron droplets in bulk involves high energy input, or relies on chemical energy released from the system. Microfluidic methods are widely used to generate highly monodispersed micron-sized or bigger droplets, while downsizing to the order of 100 nm was thought to be challenging because of sophisticated nanofabrication. In this review, we summarize the microfluidic methods that are promising for the generation of submicron droplets, with an emphasize on the device fabrication, operational condition, and resultant droplet size. Microfluidics offer a relatively energy-efficient and versatile tool for the generation of highly monodisperse submicron droplets.
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  • 文章类型: Journal Article
    微流体技术已成为制造各种先进药物递送系统的有前途的方法。由于其能够准确处理和处理少量的流体,以及对制造的微米和纳米颗粒(NP)的物理化学性质的巨大控制,微流控技术显著改善了药物的药代动力学和药效学。这种新兴技术提供了许多优于常规药物递送方法的优点,用于制造用于难溶性药物的各种微米和纳米载体。此外,微流体系统可以被设计用于靶向药物递送,旨在增加药物的局部生物利用度。这篇综述介绍了微流体领域的最新进展,包括各种药物载体的制造方法,他们的表征,和独特的功能。此外,微流体技术在药物输送系统的强大制造和开发中的应用,已经详细讨论了与常规制造方法相关的现有挑战以及由微流体技术提供的所提出的解决方案。要点微流体技术彻底改变了可调谐微载体和纳米载体的制造。微流体平台提供优于常规制造方法的若干优点。微流体装置在控制制造的药物载体的物理化学特征方面具有很大的前景。可以制造具有可控释放动力学和位点靶向效率的微载体和纳米载体。通过微流体技术制备的药物载体表现出改善的药代动力学和药效学特征。
    Microfluidics technology has emerged as a promising methodology for the fabrication of a wide variety of advanced drug delivery systems. Owing to its ability for accurate handling and processing of small quantities of fluidics as well as immense control over physicochemical properties of fabricated micro and nanoparticles (NPs), microfluidic technology has significantly improved the pharmacokinetics and pharmacodynamics of drugs. This emerging technology has offered numerous advantages over the conventional drug delivery methods for fabricating of a variety of micro and nanocarriers for poorly soluble drugs. In addition, a microfluidic system can be designed for targeted drug delivery aiming to increase the local bioavailability of drugs. This review spots the light on the recent advances made in the area of microfluidics including various methods of fabrication of drug carriers, their characterization, and unique features. Furthermore, applications of microfluidic technology for the robust fabrication and development of drug delivery systems, the existing challenges associated with conventional fabrication methodologies as well as the proposed solutions offered by microfluidic technology have been discussed in details.HighlightsMicrofluidic technology has revolutionized fabrication of tunable micro and nanocarriers.Microfluidic platforms offer several advantages over the conventional fabrication methods.Microfluidic devices hold great promise in controlling the physicochemical features of fabricated drug carriers.Micro and nanocarriers with controllable release kinetics and site-targeting efficiency can be fabricated.Drug carriers fabricated by microfluidic technology exhibited improved pharmacokinetic and pharmacodynamic profiles.
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  • 文章类型: Review
    水产食品(AFP)由于其高质量的蛋白质含量而受到消费者的青睐。欧米茄3脂肪酸,维生素,矿物,和低卡路里。然而,AFP很容易被微生物降解,酶,和化学反应。冷库,冻结,化学保存,盐渍以及真空包装系统是主要的保存技术。然而,它们不足以延长AFP的保质期。因此,研究人员专注于纳米技术的可用性,以用于符合不断变化的消费者需求的AFP。纳米乳液的有效性研究,纳米粒子,和纳米纤维形式以增加AFP的保质期正在迅速增加。在这次审查中,AFP的降解机制,纳米保存方法,并根据现有知识审查了可能的行动机制。文章强调,AFP中的纳米保存方法具有更好的微生物和物理化学参数,如总挥发性碱性氮(TVBN),硫代巴比妥酸(TBA),过氧化值(PV),游离脂肪酸(FFA),与常规方法相比,pH以及保质期延长。纳米结构的抗微生物活性降低了AFP的微生物负荷并延迟了氧化降解的开始。因此,研究人员认为,纳米方法可能在延长AFP的保质期方面具有巨大潜力。
    Aquatic food products (AFPs) are primarily preferred by consumers due to their high-quality protein content, omega 3 fatty acids, vitamins, minerals, and low calories. However, AFPs are easily degraded by microbial, enzymatic, and chemical reactions. The cold storage, freezing, chemical preservation, salting as well as vacuum packaging systems are the major preservation techniques. However, they are insufficient to extend the shelf life of AFPs. Therefore, researchers have focused on the availability of nanotechnology to be used in AFPs in line with the changing consumer demands. Studies on the effectiveness of nanoemulsion, nanoparticle, and nanofiber forms to increment the shelf life of AFPs are rapidly increasing. In this review, the degradation mechanisms of AFPs, the nano-preservation approaches, and possible mechanisms of action are reviewed with the current knowledge. The article highlights that nano-preservation approaches in AFPs have better microbial and physicochemical parameters such as total volatile basic nitrogen (TVBN), thiobarbituric acid (TBA), peroxide value (PV), free fatty acid (FFA), pH as well as the shelf life extension compared to the conventional methods. The antimicrobial activity of nanostructures reduces the microbial load of AFPs and delays the onset of oxidative degradation. Consequently, researchers suggest that nano-approaches may have great potential in extending the shelf life of AFPs.
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  • 文章类型: Journal Article
    I型粘多糖贮积症(MPSI)是一种罕见的单基因疾病,其中糖胺聚糖的异常代谢导致硫酸乙酰肝素和硫酸皮肤素在各种组织中的储存。它造成了它的损害和损害。患有严重形式的MPSI的患者通常不会活到10岁。目前,该疗法基于多学科护理和酶替代疗法或造血干细胞移植。应用基因疗法可能会使MPSI患者受益,因为它克服了标准治疗的典型局限性。纳米颗粒,包括纳米乳液,在医学中越来越多地用于将特定药物递送到靶细胞。它允许创建一个特定的,MPSI和其他溶酶体贮积症的有效治疗方法。本文简要介绍了纳米乳液的基础知识,并讨论了有关其在I型粘多糖贮积症中使用的知识现状。
    Mucopolysaccharidosis type I (MPS I) is a rare monogenic disease in which glycosaminoglycans\' abnormal metabolism leads to the storage of heparan sulfate and dermatan sulfate in various tissues. It causes its damage and impairment. Patients with the severe form of MPS I usually do not live up to the age of ten. Currently, the therapy is based on multidisciplinary care and enzyme replacement therapy or hematopoietic stem cell transplantation. Applying gene therapy might benefit the MPS I patients because it overcomes the typical limitations of standard treatments. Nanoparticles, including nanoemulsions, are used more and more in medicine to deliver a particular drug to the target cells. It allows for creating a specific, efficient therapy method in MPS I and other lysosomal storage disorders. This article briefly presents the basics of nanoemulsions and discusses the current state of knowledge about their usage in mucopolysaccharidosis type I.
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  • 文章类型: Journal Article
    Thermal energy storage materials (TES) are considered promising for a large number of applications, including solar energy storage, waste heat recovery, and enhanced building thermal performance. Among these, nanoemulsions have received a huge amount of attention. Despite the many reviews published on nanoemulsions, an insufficient number concentrate on the particularities and requirements of the energy field. Therefore, we aim to provide a review of the measurement, theoretical computation and impact of the physical properties of nanoemulsions, with an integrated perspective on the design of thermal energy storage equipment. Properties such as density, which is integral to the calculation of the volume required for storage; viscosity, which is a decisive factor in pressure loss and for transport equipment power requirements; and thermal conductivity, which determines the heating/cooling rate of the system or the specific heat directly influencing the storage capacity, are thoroughly discussed. A comparative, critical approach to all these interconnected properties in pertinent characteristic groups, in close association with the practical use of TES systems, is included. This work aims to highlight unresolved issues from previous investigations as well as to provide a summary of the numerical simulation and/or application of advanced algorithms for the modeling, optimization, and streamlining of TES systems.
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  • 文章类型: Journal Article
    减少抗生素使用的市场压力和2019年的兽医饲料指令增加了对替代抗生素解决方案的研究。这篇综述旨在评估使用精油(EO)及其纳米乳液(NEs)作为家禽饲料补充剂的好处,以及它们在有机家禽生产中作为抗生素替代品的潜在用途。抗生素由于其抗微生物活性而通常用于增强家禽动物的生长和预防疾病。EOs是一种复杂的混合物的挥发性化合物从植物和制造通过各种发酵,提取,和蒸汽蒸馏方法。EO被分类为2组化合物:萜烯和苯基丙烯。各种EO之间的差异取决于源植物类型,物理和化学土壤条件,收获时间,植物成熟度,使用的干燥技术,储存条件,和提取时间。EO可用于治疗目的在各种情况下在肉鸡生产,因为他们具有抗菌,抗真菌药,抗寄生虫,和抗病毒活性。已经使用EO或其生物活性化合物的粗提物的各种组合进行了一些研究,以研究它们的复杂性和在有机家禽生产中的应用。NEs是可用于克服EO的挥发性的载体系统,这是限制其应用的主要因素。NE正逐步用于改善EOs的挥发性亲脂性组分的生物利用度。这篇综述讨论了在有机家禽生产中使用这些非抗生素替代品作为家禽饲料的抗生素。
    Increasing market pressure to reduce the use of antibiotics and the Veterinary Feed Directive of 2019 have led to expanded research on alternate antibiotic solutions. This review aimed to assess the benefits of using essential oils (EOs) and their nanoemulsions (NEs) as feed supplements for poultry and their potential use as antibiotic alternatives in organic poultry production. Antibiotics are commonly used to enhance the growth and prevent diseases in poultry animals due to their antimicrobial activities. EOs are a complex mixture of volatile compounds derived from plants and manufactured via various fermentation, extraction, and steam distillation methods. EOs are categorized into 2 groups of compounds: terpenes and phenylpropenes. Differences among various EOs depend on the source plant type, physical and chemical soil conditions, harvest time, plant maturity, drying technology used, storage conditions, and extraction time. EOs can be used for therapeutic purposes in various situations in broiler production as they possess antibacterial, antifungal, antiparasitic, and antiviral activities. Several studies have been conducted using various combinations of EOs or crude extracts of their bioactive compounds to investigate their complexity and applications in organic poultry production. NEs are carrier systems that can be used to overcome the volatile nature of EOs, which is a major factor limiting their application. NEs are being progressively used to improve the bioavailability of the volatile lipophilic components of EOs. This review discusses the use of these nonantibiotic alternatives as antibiotics for poultry feed in organic poultry production.
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