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Biosynthesis, characterization, and in-vitro anticancer effect of plant-mediated silver nanoparticles using Acalypha indica Linn: In-silico approach 使用 Acalypha indica Linn 的植物介导银纳米粒子的生物合成、表征和体外抗癌效果:硅方法
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-11-13 DOI: 10.1016/j.onano.2024.100220
Luailik Madaniyah , Saidun Fiddaroini , Elok Kamilah Hayati , Moh. Farid Rahman , Akhmad Sabarudin
Cancer is a significant global health issue, with rising prevalence and mortality rates demanding urgent attention. The World Health Organization emphasizes the need for effective prevention, early detection, and treatment strategies to address this public health challenge. Current treatment modalities, including surgery, hormonal therapy, immunotherapy, radiation therapy, and chemotherapy, are often associated with considerable side effects and high costs. This study investigates the biosynthesis of silver nanoparticles using Acalypha indica L. (AgNPs), a medicinal plant recognized for its therapeutic benefits, as a potential cancer treatment with minimal side effects and a lower risk of drug resistance. AgNPs exhibit anti-inflammatory properties and the ability to inhibit angiogenesis while counteracting drug resistance mechanisms. Moreover, the use of chitosan as a coating on AgNPs (AgNPs-Chit) enhances their stability and specificity toward cancer cells, thereby improving their anticancer efficacy. Characterization of the synthesized AgNPs was conducted using various techniques, including UV-Vis spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), particle size analysis (PSA), and transmission electron microscopy (TEM), confirming the successful synthesis, stability, and spherical morphology of the nanoparticles, with an average diameter of 7 nm and a zeta potential of −24.51 mV. In vitro cytotoxicity testing showed that AgNPs-Chit exhibited stronger anticancer activity against T47D cells with an IC50 value of 173 µg/mL, compared to AgNPs (IC50 244 µg/mL) and the Acalypha indica L extract (IC50 826 µg/mL). When compared to the control, treatments with AgNPs-Chit, AgNPs, and the plant extract demonstrated statistically significant differences (∗p < 0.05, ∗∗p < 0.01). These results indicate that the modification of AgNPs with chitosan (AgNPs-Chit) significantly enhances anticancer efficacy compared to both AgNPs and Acalypha indica L. extract. The modification with AgNPs increased anticancer efficiency by 338%, while AgNPs-Chit showed a 446% increase compared to the original extract, highlighting the enhanced potential of these nanoparticles in inhibiting cancer cell growth. Additionally, molecular docking studies of eight key compounds identified through LC-MS analysis (quercetin, kaempferol, catechin, indoline, 4-aminobenzoic acid, 1-(2-quinolinyl)piperazine, 3-indoleacrylic acid, and pyridine-3-carboxamide) revealed strong binding affinities to the cancer target protein 3PP0, with binding energies ranging from −9.4 to −5.9 kcal/mol, compared to doxorubicin's binding energy of −9.0 kcal/mol.
癌症是一个重大的全球健康问题,其发病率和死亡率不断上升,亟需关注。世界卫生组织强调,需要有效的预防、早期检测和治疗策略来应对这一公共卫生挑战。目前的治疗方式包括手术、激素疗法、免疫疗法、放射疗法和化疗,但这些治疗方式往往会产生很大的副作用,而且费用高昂。银纳米粒子(AgNPs)是一种公认具有治疗功效的药用植物,本研究调查了利用银纳米粒子(AgNPs)进行生物合成的情况,作为一种潜在的癌症治疗方法,其副作用极小,耐药性风险较低。AgNPs 具有抗炎特性和抑制血管生成的能力,同时还能对抗抗药性机制。此外,使用壳聚糖作为 AgNPs 的涂层(AgNPs-Chit)可增强其稳定性和对癌细胞的特异性,从而提高其抗癌功效。利用紫外可见光谱、X 射线衍射(XRD)、傅立叶变换红外光谱(FTIR)、粒度分析(PSA)和透射电子显微镜(TEM)等多种技术对合成的 AgNPs 进行了表征,证实了纳米粒子的成功合成、稳定性和球形形态,其平均直径为 7 nm,Zeta 电位为 -24.51 mV。体外细胞毒性测试表明,与 AgNPs(IC50 244 µg/mL)和 Acalypha indica L 提取物(IC50 826 µg/mL)相比,AgNPs-Chit 对 T47D 细胞具有更强的抗癌活性,IC50 值为 173 µg/mL。与对照组相比,AgNPs-Chit、AgNPs 和植物提取物的处理显示出显著的统计学差异(∗p < 0.05,∗∗p < 0.01)。这些结果表明,与 AgNPs 和 Acalypha indica L. 提取物相比,用壳聚糖修饰 AgNPs(AgNPs-Chit)可明显提高抗癌效果。与原始提取物相比,用 AgNPs 修饰的抗癌效率提高了 338%,而 AgNPs-Chit 的抗癌效率提高了 446%,这凸显了这些纳米粒子在抑制癌细胞生长方面的潜力。此外,通过LC-MS分析确定的8种关键化合物(槲皮素、山柰酚、儿茶素、吲哚啉、4-氨基苯甲酸、1-(2-喹啉基)哌嗪、3-吲哚丙烯酸和吡啶-3-甲酰胺)的分子对接研究显示,它们与癌症靶蛋白3PP0的结合亲和力很强,结合能在-9.4至-5.9 kcal/mol之间,而多柔比星的结合能为-9.0 kcal/mol。
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引用次数: 0
Medical nanoscale materials for virus-induced cervical cancer therapeutic modalities: For targeting delivery 用于病毒诱导宫颈癌治疗模式的医用纳米材料:用于靶向递送
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-11-18 DOI: 10.1016/j.onano.2024.100221
Adane Adugna , Mamaru Getinet , Gashaw Azanaw Amare , Mohammed Jemal

Background

Human papillomavirus subtypes 16 and 18-associated cervical cancer is a major global health problem that affects women.

Main body

Conventional treatment approaches, including chemotherapy, immunotherapy, and gene therapy, are typically vulnerable to systemic harm, cytotoxicity, non-specificity, lack of bioavailability, poor efficacy, poor pharmacokinetics, vaginal mucosal impermeability, slow therapeutic delivery, and adverse reactions. Moreover, conventional therapeutic approaches have problems associated with biocompatibility, stability, dispersion, and the delivery of therapeutic genes into target cells. They also produce modest amounts of long-lasting antitumor immunity and have difficulty successfully targeting and eliminating cancer cells. For this reason, nanoparticles, including polymers like poly-amidoamine and polylactide-co-glycolide dendrimers, aptamers, micelles, lipid-based nanocarriers like liposomes and pegylated lipoplexes, macromolecules, and metallic nanoparticles, including silica, copper oxide, zinc oxide, iron oxide, gold, and silver, are of paramount importance to overcome the numerous drawbacks of carrying and transporting diverse types of HPV-16 and 18-caused cervical cancer therapeutic agents. This review summarizes the application of nanoscale materials to deliver various therapeutic agents to cervical cancer cells.

Conclusions

The use of nanoparticles as medical nanoscale materials during the treatment of cervical cancer helps to improve the efficacy of various therapeutic modalities, speed up the delivery process, and decrease toxicity from drugs.
背景人乳头瘤病毒 16 和 18 亚型相关的宫颈癌是影响妇女健康的一个重大全球性健康问题。正文传统治疗方法,包括化疗、免疫疗法和基因疗法,通常容易造成全身伤害、细胞毒性、非特异性、缺乏生物利用度、疗效差、药代动力学差、阴道粘膜不透气、治疗传递缓慢和不良反应。此外,传统的治疗方法还存在生物相容性、稳定性、分散性以及将治疗基因输送到靶细胞等问题。它们产生的持久抗肿瘤免疫力也很有限,而且很难成功地靶向清除癌细胞。因此,纳米颗粒,包括聚酰胺胺和聚乳酸共聚乙二醇树枝状聚合物、适配体、胶束、脂质基纳米载体(如脂质体和聚乙二醇脂质体)、大分子以及金属纳米颗粒(包括二氧化硅、氧化铜、氧化锌、氧化铁、金和银),对于克服携带和运输各种类型的 HPV-16 和 18 型宫颈癌治疗剂的诸多弊端至关重要。本综述总结了纳米级材料在向宫颈癌细胞输送各种治疗剂方面的应用。结论在治疗宫颈癌的过程中使用纳米颗粒作为医用纳米级材料有助于提高各种治疗方式的疗效、加快输送过程并降低药物毒性。
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引用次数: 0
Development and characterization of bilastine nanosuspension for enhanced dissolution in orodispersible films 用于增强光分散膜溶解的bilastine纳米悬浮液的研制与表征
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-29 DOI: 10.1016/j.onano.2024.100230
Sarah Adnan Oudah , Eman B.H. Al-Khedairy
Bilastine, a second-generation antihistamine, is commonly prescribed for managing allergic rhinoconjunctivitis and urticaria due to its prolonged action. However, its therapeutic potential is constrained by poor water solubility and low oral bioavailability. This study aimed to enhance bilastine dissolution and patient compliance by formulating a nanosuspension-based orodispersible film (ODF). An anti-solvent precipitation method was employed to produce nanosuspension using different hydrophilic stabilizers (Soluplus®, Poloxamer 188, and PEG 6000). The influence of formulation parameters, such as the stabilizer ratio, the anti-solvent ratio, stirring speed, and the stabilizer type, on particle size and polydispersity index (PDI) was optimized using an experimental design approach. The optimal formulation, with a 1:1 stabilizer-to-drug ratio using Soluplus®, a 6:1 anti-solvent to solvent ratio, and a stirring rate of 820 rpm, yielded nanoparticles with a mean particle size of 83.8 nm and a narrow PDI of 0.019. This formulation also significantly enhanced the drug's dissolution rate in phosphate buffer pH 6.8, releasing 92.02% of bilastine within 90 minutes. Further characterization of the lyophilized nanoparticles using FESEM, FTIR, and XRD, confirmed their amorphous nature and drug compatibility. The optimized nanosuspension was subsequently incorporated into ODFs via the solvent-casting technique, with the optimal film formulated with a 1:1 ratio of PVA and HPMC E5 as the film-forming polymers, demonstrating a rapid disintegration time of 18 seconds and releasing 93.16% of bilastine within 6 minutes. These results confirm the successful formulation of bilastine into ODFs, significantly improving its dissolution compared to the pure drug.
Bilastine是第二代抗组胺药,由于其作用时间长,通常用于治疗过敏性鼻结膜炎和荨麻疹。然而,其治疗潜力受到水溶性差和口服生物利用度低的限制。本研究旨在通过制备纳米悬浮液或分散膜(ODF)来提高胆碱的溶解性和患者的依从性。采用反溶剂沉淀法,使用不同的亲水稳定剂(Soluplus®、Poloxamer 188和PEG 6000)制备纳米悬浮液。采用实验设计方法优化了稳定剂配比、抗溶剂比、搅拌速度、稳定剂种类等配方参数对颗粒粒径和PDI的影响。最佳配方采用Soluplus®,稳定剂与药物的比例为1:1,抗溶剂与溶剂的比例为6:1,搅拌速度为820 rpm,得到的纳米颗粒平均粒径为83.8 nm, PDI窄至0.019。该制剂还显著提高了药物在pH 6.8的磷酸盐缓冲液中的溶出率,在90分钟内释放出92.02%的胆碱。利用FESEM, FTIR和XRD进一步表征了冻干纳米颗粒,证实了它们的无定形性质和药物相容性。将优化后的纳米悬浮液通过溶剂浇铸技术掺入ODFs中,以PVA和HPMC E5为成膜聚合物,以1:1的比例配制成最佳膜,崩解时间为18秒,6分钟内释放出93.16%的bilastine。这些结果证实了bilastine在odf中的成功配方,与纯药物相比,显着提高了其溶出度。
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引用次数: 0
Material informatics-driven insights into brain cancer nanocarriers: A bibliometric comparison of PLGA vs. liposomes 材料信息学驱动的洞察脑癌纳米载体:PLGA与脂质体的文献计量学比较
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-10 DOI: 10.1016/j.onano.2024.100225
Brilly Andro Makalew , Syauqi Abdurrahman Abrori
This study explores a comparative analysis of PLGA nanoparticles and liposomes as potential carriers for brain cancer drug delivery, with a special focus on how material informatics enhances their design, biocompatibility, and drug release profiles to improve treatment efficacy and contribute to sustainable health outcomes.
The investigation employed a bibliometric analysis using Scopus and VOSviewer to uncover the role of material informatics in optimizing these nanocarriers. The analysis revealed that material informatics, particularly through the application of machine learning and molecular dynamics simulations, significantly optimizes the performance of both PLGA nanoparticles and liposomes.
The results highlighted distinct strengths of each nanocarrier: PLGA nanoparticles excel in biodegradability, while liposomes offer superior drug encapsulation capabilities. However, material informatics techniques bridged these enhancing drug release kinetics, stability, and biocompatibility. These improvements are crucial for effective delivery across the blood-brain barrier, a major challenge in brain cancer treatment.
The integration of computational modelling, machine learning, and high-throughput screening enabled by material informatics is shown to be a key factor in advancing the design and optimization of these nanocarriers. By leveraging these tools, researchers can develop more personalized and efficient drug delivery systems tailored to address the specific challenges of glioblastoma therapy, ultimately contributing to sustainable health outcomes
本研究探讨了PLGA纳米颗粒和脂质体作为脑癌药物递送的潜在载体的比较分析,特别关注材料信息学如何增强其设计,生物相容性和药物释放概况,以提高治疗效果并促进可持续的健康结果。本研究使用Scopus和VOSviewer进行文献计量学分析,揭示材料信息学在优化这些纳米载体中的作用。分析表明,材料信息学,特别是通过机器学习和分子动力学模拟的应用,显著优化了PLGA纳米颗粒和脂质体的性能。结果突出了每种纳米载体的独特优势:PLGA纳米颗粒具有生物可降解性,而脂质体具有优越的药物封装能力。然而,材料信息学技术连接了这些增强药物释放动力学,稳定性和生物相容性。这些改进对于有效地通过血脑屏障是至关重要的,这是脑癌治疗的一个主要挑战。计算建模、机器学习和材料信息学实现的高通量筛选的集成被证明是推进这些纳米载体设计和优化的关键因素。通过利用这些工具,研究人员可以开发出更加个性化和高效的药物输送系统,以解决胶质母细胞瘤治疗的特定挑战,最终为可持续的健康结果做出贡献
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引用次数: 0
Recent advances in lanthanide-based nanoparticle contrast agents for magnetic resonance imaging: Synthesis, characterization, and applications 磁共振成像用镧系纳米造影剂的最新进展:合成、表征和应用
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-12 DOI: 10.1016/j.onano.2024.100226
Azmi Aulia Rahmani , Qi Jia , Husein H. Bahti , Retna Putri Fauzia , Santhy Wyantuti
MRI is a powerful, non-invasive imaging technique with exceptional soft tissue contrast, requiring contrast agents to enhance sensitivity by shortening longitudinal (T1) and transverse (T2) relaxation times. While most clinical agents are chelate-based, their potential toxicity has driven the development of nanoparticle-based alternatives. Nanoparticles offer reduced toxicity, improved stability, prolonged circulation time, and better control over surface properties. Lanthanide-based nanoparticles, in particular, are promising due to their paramagnetic properties enhancing MRI contrast. The design of these nanoparticles focuses on optimizing size, shape, and colloidal stability with advances in synthesis techniques allowing for precise control over particle size, morphology, and stability to significantly influence relaxivity. Larger sizes increase r₂ values but may reduce stability, while anisotropic shapes enhance relaxivity compared to the more stable spheres. Surface modifications with functional polymers improve stability and prevent aggregation, optimizing imaging performance. As research progresses, lanthanide-based nanoparticles are poised to become crucial tools in radiology-driven cancer diagnosis and therapy, offering dual functionality for early detection, targeted treatment, and minimized off-target effects. However, these nanoparticles must be refined for tumour-specific diagnostic and therapeutic applications and undergo comprehensive safety evaluations before clinical trials.
MRI是一种强大的非侵入性成像技术,具有特殊的软组织造影剂,需要造影剂通过缩短纵向(T1)和横向(T2)松弛时间来增强灵敏度。虽然大多数临床药物是基于螯合物的,但它们潜在的毒性已经推动了基于纳米粒子的替代品的发展。纳米颗粒具有降低毒性、提高稳定性、延长循环时间和更好地控制表面性质的优点。特别是镧系纳米颗粒,由于其顺磁性能增强MRI对比,因此前景广阔。这些纳米颗粒的设计重点是优化尺寸、形状和胶体稳定性,合成技术的进步允许对颗粒尺寸、形态和稳定性进行精确控制,从而显著影响弛豫。较大的尺寸会增加r₂值,但可能会降低稳定性,而各向异性的形状与更稳定的球体相比,会增强弛豫度。功能聚合物的表面修饰提高了稳定性,防止聚集,优化了成像性能。随着研究的进展,镧系纳米颗粒有望成为放射学驱动的癌症诊断和治疗的关键工具,具有早期发现、靶向治疗和最小化脱靶效应的双重功能。然而,这些纳米颗粒必须经过细化,以用于肿瘤特异性诊断和治疗应用,并在临床试验之前进行全面的安全性评估。
{"title":"Recent advances in lanthanide-based nanoparticle contrast agents for magnetic resonance imaging: Synthesis, characterization, and applications","authors":"Azmi Aulia Rahmani ,&nbsp;Qi Jia ,&nbsp;Husein H. Bahti ,&nbsp;Retna Putri Fauzia ,&nbsp;Santhy Wyantuti","doi":"10.1016/j.onano.2024.100226","DOIUrl":"10.1016/j.onano.2024.100226","url":null,"abstract":"<div><div>MRI is a powerful, non-invasive imaging technique with exceptional soft tissue contrast, requiring contrast agents to enhance sensitivity by shortening longitudinal (T<sub>1</sub>) and transverse (T<sub>2</sub>) relaxation times. While most clinical agents are chelate-based, their potential toxicity has driven the development of nanoparticle-based alternatives. Nanoparticles offer reduced toxicity, improved stability, prolonged circulation time, and better control over surface properties. Lanthanide-based nanoparticles, in particular, are promising due to their paramagnetic properties enhancing MRI contrast. The design of these nanoparticles focuses on optimizing size, shape, and colloidal stability with advances in synthesis techniques allowing for precise control over particle size, morphology, and stability to significantly influence relaxivity. Larger sizes increase r₂ values but may reduce stability, while anisotropic shapes enhance relaxivity compared to the more stable spheres. Surface modifications with functional polymers improve stability and prevent aggregation, optimizing imaging performance. As research progresses, lanthanide-based nanoparticles are poised to become crucial tools in radiology-driven cancer diagnosis and therapy, offering dual functionality for early detection, targeted treatment, and minimized off-target effects. However, these nanoparticles must be refined for tumour-specific diagnostic and therapeutic applications and undergo comprehensive safety evaluations before clinical trials.</div></div>","PeriodicalId":37785,"journal":{"name":"OpenNano","volume":"21 ","pages":"Article 100226"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioprinting 3D lattice-structured lumens using polyethylene glycol diacrylate (PEGDA) combined with self-assembling peptide nanofibers as hybrid bioinks for anchorage dependent cells 使用聚乙二醇二丙烯酸酯(PEGDA)结合自组装肽纳米纤维作为锚定依赖细胞的杂交生物墨水,生物打印3D晶格结构的管腔
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-04 DOI: 10.1016/j.onano.2024.100223
Vishalakshi Irukuvarjula, Faye Fouladgar, Robert Powell, Emily Carney, Neda Habibi
There is a pressing need for new cell-laden, printable bioinks to mimic stiffer tissues such as cartilage, fibrotic tissue and bone. PEGDA monomers are bioinks that crosslink with light to form a viscoelastic solid, however, they lack cell adhesion properties. Here, we utilized a hybrid bioink by combining self-assembled peptide nanofibers with PEGDA for 3D printing lumens. Adult human dermal fibroblast (aHDF) cells were first seeded in peptide-laden in 2D and 3D layers and cell behavior were studied. The cell's morphology remained spheres when they were infused in the 3D hydrogel and highly aligned with 2D overlay hydrogels. HDF cells did not adhere to unmodified PEGDA lumens, however, they successfully attached and proliferated on PEGDA/peptide lumens. Moreover, HDF cells seeded on the hybrid PEGDA/peptide lumens displayed a distinct spread F-actin morphology. The results showcase the potential of peptide hydrogels in facilitating interaction of anchorage dependent cells with PEGDA structures.
目前迫切需要一种新型的、装载细胞的、可打印的生物墨水来模拟更硬的组织,如软骨、纤维化组织和骨骼。PEGDA单体是与光交联形成粘弹性固体的生物墨水,然而,它们缺乏细胞粘附特性。在这里,我们将自组装肽纳米纤维与PEGDA结合在一起,利用混合生物墨水进行3D打印流明。将成人真皮成纤维细胞(aHDF)首先在二维和三维层中植入,并研究细胞行为。当细胞注入3D水凝胶并与2D覆盖水凝胶高度对齐时,细胞形态保持球形。HDF细胞不粘附在未修饰的PEGDA管腔上,但它们成功地附着在PEGDA/肽管腔上并增殖。此外,在杂交PEGDA/肽管腔上接种的HDF细胞表现出明显的扩散f -肌动蛋白形态。结果表明肽水凝胶在促进锚定依赖细胞与PEGDA结构的相互作用方面具有潜力。
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引用次数: 0
Are Bentong ginger (Zingiber officinale) biosynthesized silver nanoparticles safe and effective? An optimization, characterization, and toxicity evaluation study 本通姜(Zingiber officinale)生物合成银纳米颗粒安全有效吗?优化、表征和毒性评价研究
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-06 DOI: 10.1016/j.onano.2024.100224
Nor-Azmiraah Abd Jabar , Mahmud Ab Rashid Nor-Khaizura , Siti Izera Ismail , Yuet Ying Loo , Kah Hui Chong , Kousalya Padmanabhan , Shan Jiang
The biosynthesis of silver nanoparticles from ginger extract is particularly interesting due to the bioactive compounds present in ginger, which have antioxidant, antimicrobial, and anti-inflammatory properties. The study aims to optimize, characterize, and evaluate the toxicity value of the biosynthesized silver nanoparticles using Bentong ginger (Zingiber officinale) rhizome extract and commercialized ginger powder extract as reducing and capping agents. The synthesis was optimized regarding pH, silver nitrate concentration, and incubation time for better yield and stability. Additionally, biosynthesized silver nanoparticles were characterized using UV–vis spectrophotometer, X-ray diffraction, Fourier-transform Infrared, and Transmission Electron Microscope analysis. Cytotoxicity test was done using brine shrimp lethality test to determine toxicity value. The result for both Bentong ginger rhizome extract and commercialized ginger powder extract indicated that the maximum absorption of biosynthesized silver nanoparticles was 450 nm, with the most optimum pH of 11, 1 mM of silver nitrate concentration, and incubation time of 24 h. The nanoparticles were almost spherical, with an average particle size of 15.08 ± 6 nm. The analysis confirms the presence of phytochemicals in the ginger extract that aids in reducing silver ions into silver nanoparticles. Brine shrimp lethality assay showed the LC50 for AgNPs was medium toxic at 838.31 µg/mL. Although silver nanoparticles possess antimicrobial ability, the potential toxicity to human health and environmental concerns must be considered before deploying into food industries. This is the first report utilizing Bentong ginger in silver nanoparticle synthesis.
由于生姜中含有抗氧化、抗菌和抗炎的生物活性化合物,因此从生姜提取物中合成纳米银的生物合成特别有趣。本研究旨在优化、表征和评价以本通姜(Zingiber officinale)根茎提取物和市售姜粉提取物为还原剂和封盖剂的生物合成纳米银的毒性价值。对合成工艺进行了pH、硝酸银浓度、孵育时间等方面的优化,以获得更好的收率和稳定性。此外,利用紫外-可见分光光度计、x射线衍射、傅里叶变换红外和透射电镜分析对生物合成的纳米银进行了表征。采用卤虾致死试验进行细胞毒性试验,确定毒性值。本通姜提取物和市产姜粉提取物的实验结果表明,生物合成银纳米颗粒的最大吸收量为450 nm,最佳pH为11.1 mM硝酸银浓度,培养时间为24 h,纳米颗粒呈球状,平均粒径为15.08±6 nm。分析证实,生姜提取物中存在植物化学物质,有助于将银离子还原成银纳米粒子。盐水对虾致死试验表明,AgNPs的LC50为中毒性,为838.31µg/mL。虽然银纳米颗粒具有抗菌能力,但在将其应用于食品工业之前,必须考虑其对人类健康和环境的潜在毒性。本文首次报道利用本通姜合成纳米银颗粒。
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引用次数: 0
Synthesis, characterization and antibacterial properties of chitosan/thyme oil/MgO bionanocomposite against Streptococcus mutans 壳聚糖/百里香油/氧化镁生物复合材料的合成、表征及对变形链球菌的抗菌性能
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2025-01-01 Epub Date: 2024-12-25 DOI: 10.1016/j.onano.2024.100227
Mohammad Moslem Imani , Bahar Azadi , Hamid Reza Mozaffari , Mohammad Salmani Mobarakeh , Mohsen Safaei
The continuous increase of bacterial resistance in medical and industrial environments is a significant challenge due to their resistance to typical antimicrobial treatments. This study aimed to introduce a new colloidal solution containing chitosan/thyme oil/MgO Bionanocomposite with the strongest antibacterial activity. In situ synthesis method was used for the synthesis of the chitosan/thyme oil/MgO nanocomposite. Nine experiments based on the Taguchi design were created to examine the effects of three variables at three different levels. In the parameters of experiment 7 (3 mg/mL of chitosan Biopolymer, 0.5 μL/mL of thyme oil, and 6 mg/mL of MgO), the results showed that the bacterial viability was zero. The nanocomposite demonstrated enhanced structural properties and superior antibacterial activity compared to its individual components. This study showed that the synthesized nanocomposite had desirable structural properties and antibacterial activity under optimal conditions.
在医疗和工业环境中,细菌耐药性的持续增加是一个重大挑战,因为它们对典型的抗菌素治疗具有耐药性。本研究旨在介绍一种新型抗菌活性最强的壳聚糖/百里香油/氧化镁生物复合材料胶体溶液。采用原位合成法合成了壳聚糖/百里香油/氧化镁纳米复合材料。在田口设计的基础上创建了9个实验,以检验三个变量在三个不同水平上的影响。实验7的参数为:壳聚糖生物聚合物3 mg/mL、百里香油0.5 μL/mL、MgO 6 mg/mL,结果表明细菌活力为零。与单个组分相比,纳米复合材料表现出增强的结构性能和优越的抗菌活性。研究表明,在最佳条件下合成的纳米复合材料具有良好的结构性能和抗菌活性。
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引用次数: 0
Transformative approaches for siRNA detection siRNA 检测的变革性方法
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-11-01 Epub Date: 2024-08-30 DOI: 10.1016/j.onano.2024.100214
Sima Singh , Ada Raucci , Wanda Cimmino , Antonella Miglione , Panagiota M Kalligosfyri , Stefano Cinti

Small interfering RNA (siRNA) is essential for the process of gene silencing, especially for cancer. Despite its considerable promise, siRNA faces challenges due to stability issues of formulation and undesirable off-target side effects. In order to address these difficulties, it is essential to carefully monitor the levels of siRNA. The existing point-of-care (POC) systems cannot precisely and efficiently detect or monitor siRNA levels. In light of these challenges, this review gives the prospects of siRNA detection by proposing a novel hypothesis of existing electrical and optical-based detection of DNA/RNA with the POC platform. This hypothesis offers an interesting novel perspective to potentially fill the existing gaps, in detecting siRNA. By utilising these technologies, there is high potential to develop a proof-of-concept system that will not only overcome the existing challenges, but it will also allow effective and precise monitoring of siRNA, in real-world healthcare environments. In summary, the prospects for siRNA in the realm of POC platforms are quite encouraging, since it allows precise and effective monitoring.

小干扰 RNA(siRNA)对基因沉默过程至关重要,尤其是对癌症而言。尽管 siRNA 前景广阔,但由于其配方的稳定性问题和不良的脱靶副作用,它仍面临着挑战。为了解决这些难题,必须仔细监测 siRNA 的水平。现有的床旁检测(POC)系统无法精确有效地检测或监测 siRNA 水平。鉴于这些挑战,本综述通过对现有的基于电学和光学的 DNA/RNA 检测与 POC 平台提出新的假设,展望了 siRNA 检测的前景。这一假设提供了一个有趣的新视角,有可能填补检测 siRNA 方面的现有空白。利用这些技术,很有可能开发出一种概念验证系统,不仅能克服现有的挑战,还能在现实世界的医疗环境中有效、精确地监测 siRNA。总之,siRNA 在 POC 平台领域的前景相当令人鼓舞,因为它可以进行精确有效的监测。
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引用次数: 0
A recent advances in antimicrobial activity of green synthesized selenium nanoparticle 绿色合成硒纳米粒子抗菌活性的最新进展
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-11-01 Epub Date: 2024-11-09 DOI: 10.1016/j.onano.2024.100219
Durgadevi Ravi , Bhuvaneshwari Gunasekar , Vishwanathan Kaliyaperumal , Shyamaladevi Babu
Green technologies have gained prominence, particularly in the environmentally friendly synthesis of compounds, with Selenium nanoparticles (SeNPs) emerging as a key area of interest due to their potential in drug development. The sustainable production of SeNPs using microorganisms and plants enhances their physical, chemical, and biological properties, improving their catalytic efficiency. Recent advancements in nanotechnology, especially in medicine and antimicrobial research, highlight the growing significance of green synthesis methods. These eco-conscious approaches aim to preserve natural resources while promoting sustainable nanoparticle production techniques. This review focuses on SeNPs' antimicrobial action as well as the factors that influence their green production, such as pH, temperature, and precursor concentration, all of which affect their morphology, size, and stability. SeNPs' antimicrobial activity against a diverse range of bacteria, fungi, and viruses is extensively tested, with a focus on their capacity to battle drug-resistant infections and biofilms. The mechanisms of SeNPs' antimicrobial effect are investigated, including membrane disruption, reactive oxygen species (ROS) production, and interactions with cellular components. Furthermore, their antiviral characteristics and ability to alter immune responses highlight their medicinal applications. SeNPs represent a significant advancement in green nanotechnology, offering sustainable solutions to pressing biomedical challenges, particularly in the fight against drug-resistant pathogens.
绿色技术日益突出,特别是在以环境友好型方式合成化合物方面,硒纳米粒子(SeNPs)因其在药物开发方面的潜力而成为人们关注的一个重要领域。利用微生物和植物可持续地生产 SeNPs 可增强其物理、化学和生物特性,提高其催化效率。纳米技术的最新进展,尤其是在医药和抗菌研究方面的进展,凸显了绿色合成方法日益重要的意义。这些具有生态意识的方法旨在保护自然资源,同时推广可持续的纳米粒子生产技术。本综述重点介绍 SeNPs 的抗菌作用以及影响其绿色生产的因素,如 pH 值、温度和前体浓度,所有这些因素都会影响其形态、尺寸和稳定性。我们对 SeNPs 针对各种细菌、真菌和病毒的抗菌活性进行了广泛的测试,重点是它们对抗耐药性感染和生物膜的能力。研究了 SeNPs 的抗菌作用机制,包括膜破坏、活性氧(ROS)产生以及与细胞成分的相互作用。此外,SeNPs 的抗病毒特性和改变免疫反应的能力也突显了其在医药方面的应用。SeNPs 代表了绿色纳米技术的重大进步,为应对紧迫的生物医学挑战,尤其是对抗耐药性病原体提供了可持续的解决方案。
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