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International Journal of Nanomedicine

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https://www.readbyqxmd.com/read/29780247/impact-of-nanoparticles-on-neuron-biology-current-research-trends
#1
REVIEW
Firdos Alam Khan, Dana Almohazey, Munthar Alomari, Sarah Ameen Almofty
Nanoparticles have enormous applications in textiles, cosmetics, electronics, and pharmaceuticals. But due to their exceptional physical and chemical properties, particularly antimicrobial, anticancer, antibacterial, anti-inflammatory properties, nanoparticles have many potential applications in diagnosis as well as in the treatment of various diseases. Over the past few years, nanoparticles have been extensively used to investigate their response on the neuronal cells. These nanoparticles cause stem cells to differentiate into neuronal cells and promote neuronal cell survivability and neuronal cell growth and expansion...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29780246/remineralization-potential-of-nano-hydroxyapatite-on-enamel-and-cementum-surrounding-margin-of-computer-aided-design-and-computer-aided-manufacturing-ceramic-restoration
#2
Niwut Juntavee, Apa Juntavee, Preeyarat Plongniras
Objective: This study investigates the effects of nano-hydroxyapatite (NHA) gel and Clinpro (CP) on remineralization potential of enamel and cementum at the cavosurface area of computer-aided design and computer-aided manufacturing ceramic restoration. Materials and methods: Thirty extracted human mandibular third molars were sectioned at 1 mm above and below the cemento-enamel junction to remove the cemento-enamel junction portions and replaced them with zirconia ceramic disks by bonding them to the crown and root portions with resin cement...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29780245/protein-delivery-nanosystem-of-six-arm-copolymer-poly-%C3%AE%C2%B5-caprolactone-poly-ethylene-glycol-for-long-term-sustained-release
#3
Jianwei Duan, Chao Liu, Xiaoyu Liang, Xuanling Li, Youlu Chen, Zuoguan Chen, Xiaoli Wang, Deling Kong, Yongjun Li, Jing Yang
Background: To address the issue of delivery of proteins, a six-arm copolymer, six-arm poly (ε-caprolactone)-poly(ethylene glycol) (6S-PCL-PEG), was synthesized by a simple two-step reaction. Thereafter, the application of 6S-PCL-PEG as a protein carrier was evaluated. Materials and methods: A six-arm copolymer, six-arm poly(ε-caprolactone) (6S-PCL), was synthesized by ring-opening polymerization, with stannous octoate as a catalyst and inositol as an initiator...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29765216/dysfunction-of-various-organelles-provokes-multiple-cell-death-after-quantum-dot-exposure
#4
REVIEW
Yan Wang, Meng Tang
Quantum dots (QDs) are different from the materials with the micrometer scale. Owing to the superiority in fluorescence and optical stability, QDs act as possible diagnostic and therapeutic tools for application in biomedical field. However, potential threats of QDs to human health hamper their wide utilization in life sciences. It has been reported that oxidative stress and inflammation are involved in toxicity caused by QDs. Recently, accumulating research unveiled that disturbance of subcellular structures plays a magnificent role in cytotoxicity of QDs...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29765215/in-vivo-investigation-on-the-chronic-hepatotoxicity-induced-by-intraperitoneal-administration-of-10-nm-silicon-dioxide-nanoparticles
#5
Mansour Almansour, Saud Alarifi, Bashir Jarrar
Background: Silicon dioxide (silica) nanoparticles (SDNPs) are widely used in nanotechnology and medicine, but these nanomaterials may carry a high risk for human health while little is known about their toxicity. Methods: We investigated the alterations in morphometry, biochemistry, hematology, histology of liver tissue and gene expression of drug-metabolizing enzymes induced by 10-nm SDNPs. Healthy male Wistar albino rats were exposed to 20, 35 and 50 repeated injections of SDNPs (2 mg/kg body weight)...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29760551/nanoparticle-mediated-drug-delivery-to-treat-infections-in-the-female-reproductive-tract-evaluation-of-experimental-systems-and-the-potential-for-mathematical-modeling
#6
REVIEW
Lee B Sims, Hermann B Frieboes, Jill M Steinbach-Rankins
A variety of drug-delivery platforms have been employed to deliver therapeutic agents across cervicovaginal mucus (CVM) and the vaginal mucosa, offering the capability to increase the longevity and retention of active agents to treat infections of the female reproductive tract (FRT). Nanoparticles (NPs) have been shown to improve retention, diffusion, and cell-specific targeting via specific surface modifications, relative to other delivery platforms. In particular, polymeric NPs represent a promising option that has shown improved distribution through the CVM...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29760550/synergistic-antifungal-effect-of-chitosan-stabilized-selenium-nanoparticles-synthesized-by-pulsed-laser-ablation-in-liquids-against-candida-albicans-biofilms
#7
Humberto H Lara, Gregory Guisbiers, Jonathan Mendoza, Lawrence C Mimun, Brandy A Vincent, Jose L Lopez-Ribot, Kelly L Nash
Background: Candida albicans is a major opportunistic fungal pathogen. One of the most important virulence factors that contribute to the pathogenesis of candidiasis is its ability to form biofilms. A key characteristic of Candida biofilms is their resistance to antifungal agents. Due to significant morbidity and mortality rates related to biofilm-associated drug resistance, there is an urgency to develop novel nanotechnology-based approaches preventing biofilm-related infections. Methods: In this study, we report, for the first time, the synthesis of selenium nanoparticles by irradiating selenium pellets by nanosecond pulsed laser ablation in liquid chitosan as a capping agent...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29760549/nanostructured-ag-substituted-fluorhydroxyapatite-tio-2-coatings-for-enhanced-bactericidal-effects-and-osteoinductivity-of-ti-for-biomedical-applications
#8
Yong Huang, Guiqin Song, Xiaotong Chang, Zhenhui Wang, Xuejiao Zhang, Shuguang Han, Zhuobin Su, Hejie Yang, Dongdong Yang, Xiaojun Zhang
Background: Poor mechanical properties, undesirable fast dissolution rate, and lack of antibacterial activity limit the application of hydroxyapatite (HA) as an implant coating material. To overcome these limitations, a hybrid coating of Ag+ -substituted fluorhydroxyapatite and titania nanotube (TNT) was prepared. Methods: The incorporation of silver into the HA-TiO2 hybrid coating improves its antimicrobial properties. The addition of F as a second binary element increases the structural stability of the coating...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29760548/silver-nanoparticles-induced-alterations-in-multiple-cellular-targets-which-are-critical-for-drug-susceptibilities-and-pathogenicity-in-fungal-pathogen-candida-albicans
#9
Venkatraman Srinivasan Radhakrishnan, Mohana Krishna Reddy Mudiam, Manish Kumar, Surya Prakash Dwivedi, Surinder Pal Singh, Tulika Prasad
Purpose: A significant increase in the incidence of fungal infections and drug resistance has been observed in the past decades due to limited availability of broad-spectrum antifungal drugs. Nanomedicines have shown significant antimicrobial potential against various drug-resistant microbes. Silver nanoparticles (AgNps) are known for their antimicrobial properties and lower host toxicity; however, for clinical applications, evaluation of their impact at cellular and molecular levels is essential...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29750034/physiologically-based-pharmacokinetic-modeling-of-nanoceria-systemic-distribution-in-rats-suggests-dose-and-route-dependent-biokinetics
#10
Ulrika Carlander, Tshepo Paulsen Moto, Anteneh Assefa Desalegn, Robert A Yokel, Gunnar Johanson
Background: Cerium dioxide nanoparticles (nanoceria) are increasingly being used in a variety of products as catalysts, coatings, and polishing agents. Furthermore, their antioxidant properties make nanoceria potential candidates for biomedical applications. To predict and avoid toxicity, information about their biokinetics is essential. A useful tool to explore such associations between exposure and internal target dose is physiologically based pharmacokinetic (PBPK) modeling. The aim of this study was to test the appropriateness of our previously published PBPK model developed for intravenous (IV) administration when applied to various sizes of nanoceria and to exposure routes relevant for humans...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29750033/dna-and-rna-binding-ability-of-oligodapt-a-nucleobase-decorated-peptide-for-biomedical-applications
#11
Domenica Musumeci, Valentina Roviello, Giovanni N Roviello
Background: Nucleobase-bearing peptides and their interaction with DNA and RNA are an important topic in the development of therapeutic approaches. On one hand, they are highly effective for modulating the nucleic-acid-based biological processes. On the other hand, they permit to overcome some of the main factors limiting the therapeutic efficacy of natural oligonucleotides, such as their rapid degradation by nucleases. Methods and results: This article describes the synthesis and characterization of a novel thymine-bearing nucleoamino acid based on the l-diaminopropionic acid (l-Dap) and its solid phase oligomerization to α-peptides (oligoDapT), characterized using mass spectrometry, spectroscopic techniques, and scanning electron microscopy (SEM) analysis...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29750032/protection-of-silver-nanoparticles-using-eysenhardtia-polystachya-in-peroxide-induced-pancreatic-%C3%AE-cell-damage-and-their-antidiabetic-properties-in-zebrafish
#12
Abraham Heriberto Garcia Campoy, Rosa Martha Perez Gutierrez, Gabriela Manriquez-Alvirde, Alethia Muñiz Ramirez
Background: The aim was to explore the efficacy of extract of Eysenhardtia polystachya -loaded silver nanoparticles (EP/AgNPs) on pancreatic β cells, INS-1 cells, and zebrafish as a valuable model for the study of diabetes mellitus. Materials and methods: EP/AgNPs were synthesized using methanol/water bark extract of E. polystachya and characterized using various physicochemical techniques. Results: Immersion of adult zebrafish in 111 mM glucose solution resulted in a sustained hyperglycemic, hyperlipidemic state, and serum insulin levels decreased...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29750031/glypican-1-antibody-conjugated-gd-au-nanoclusters-for-fi-mri-dual-modal-targeted-detection-of-pancreatic-cancer
#13
Xin Huang, Chengqi Fan, Huanhuan Zhu, Wenjun Le, Shaobin Cui, Xin Chen, Wei Li, Fulei Zhang, Yong Huang, Donglu Sh, Zheng Cui, Chengwei Shao, Bingdi Chen
Introduction: Pancreatic cancer (PC) has a poor prognosis with high mortality, due to the lack of effective early diagnostic and prognostic tools. Materials and methods: In order to target and diagnose PC, we developed a dual-modal imaging probe using Glypican-1 (GPC-1) antibody conjugated with Gd-Au nanoclusters (NCs; Gd-Au-NC-GPC-1). GPC-1 is a type of cell surface heparan sulfate proteoglycan, which is often highly expressed in PC. The probe was successfully prepared with a hydrodynamic diameter ranging from 13...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731632/development-of-nanoemulsion-for-efficient-brain-parenteral-delivery-of-cefuroxime-designs-characterizations-and-pharmacokinetics
#14
Siti Norhawani Harun, Syafinaz Amin Nordin, Siti Salwa Abd Gani, Ahmad Fuad Shamsuddin, Mahiran Basri, Hamidon Bin Basri
Background and aim: Drugs that are effective against diseases in the central nervous system and reach the brain via blood must pass through the blood-brain barrier (BBB), a unique interface that protects against potential harmful molecules. This presents a major challenge in neuro-drug delivery. This study attempts to fabricate the cefuroxime-loaded nanoemulsion (CLN) to increase drug penetration into the brain when parenterally administered. Methods: The nanoemulsions were formulated using a high-pressure homogenization technique and were characterized for their physicochemical properties...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731631/arginine-glycine-aspartic-acid-peptide-modified-paclitaxel-and-curcumin-co-loaded-liposome-for-the-treatment-of-lung-cancer-in-vitro-vivo-evaluation
#15
Kanqiu Jiang, Mingjing Shen, Weihua Xu
Purpose: In this study, a novel arginine, glycine, aspartic acid peptide (RGD)-modified paclitaxel and curcumin co-loaded liposomes were developed to evaluate their antitumor activity in vitro and in vivo. Materials and methods: Co-loaded liposomes were prepared using the solvent evaporation method. The particles had spherical shapes under electron microscopy with sizes <130 nm. Results: By comparison with the free drug, RGD-modified paclitaxel and curcumin co-loaded liposomes and paclitaxel and curcumin co-loaded liposomes have sustained-release properties in vitro...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731630/peptide-functionalized-quantum-dots-for-potential-applications-in-the-imaging-and-treatment-of-obesity
#16
Ntevheleni Thovhogi, Nicole Remaliah Samantha Sibuyi, Martin Opiyo Onani, Mervin Meyer, Abram Madimabe Madiehe
Background: Obesity is a worldwide epidemic affecting millions of people. The current pharmacological treatment of obesity remains limited and ineffective due to drugs' undesirable side effects. Hence, there is a need for novel or improved strategies for long-term therapies that will help prevent the disease progression into other chronic diseases. Nanotechnology holds the future for the treatment of obesity because of its versatility, as shown by improved drug efficiency and safety in cancer clinical trials...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731629/nanosized-titanium-dioxide-induced-premature-ovarian-failure-is-associated-with-abnormalities-in-serum-parameters-in-female-mice
#17
Fashui Hong, Ling Wang
Background: Exposure to titanium dioxide nanoparticles (TiO2 NPs) that are widely used in food, medicine, sunscreen products and cosmetics is reported to cause ovarian damage and lower fertility in animals. However, the potential effects of TiO2 NPs application on premature ovarian failure (POF) have rarely been evaluated to date. Methods: In this study, female mice were continuously exposed to TiO2 NPs at doses of 2.5, 5 or 10 mg/kg via gavage instillation for 30 days, and investigated the serum hormones and autoimmunity markers associated with POF...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731628/methyl-%C3%AE-cyclodextrin-quaternary-ammonium-chitosan-conjugate-nanoparticles-vs-macromolecular-soluble-complex
#18
Anna Maria Piras, Angela Fabiano, Federica Chiellini, Ylenia Zambito
Purpose: The present study aimed to compare a novel cyclodextrin-polymer-drug complex in solution with a dispersed supramolecular nanosize system, made of the same complex, for ability to carry dexamethasone (DEX) across excised rat intestine. Results: Methyl-β-cyclodextrin-quaternary ammonium chitosan conjugate (QA-Ch-MCD) was obtained by covalent grafting through a 10-atom spacer. The conjugate was characterized by 1 H-NMR, resulting in 24.4% w/w of MCD content...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29731627/gold-nanoparticle-based-colorimetric-method-for-the-detection-of-prostate-specific-antigen
#19
Ning Xia, Dehua Deng, Yiru Wang, Chao Fang, Su-Juan Li
Background: Prostate-specific antigen (PSA), a serine protease, is a biomarker for preoperative diagnosis and screening of prostate cancer and monitoring of its posttreatment. Methods: In this work, we reported a colorimetric method for clinical detection of PSA using gold nanoparticles (AuNPs) as the reporters. The method is based on ascorbic acid (AA)-induced in situ formation of AuNPs and Cu2+ -catalyzed oxidation of AA. Specifically, HAuCl4 can be reduced into AuNPs by AA; Cu2+ ion can catalyze the oxidation of AA by O2 to inhibit the formation of AuNPs...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29719397/endogenous-ornithine-decarboxylase-polyamine-system-mediated-the-antagonist-role-of-insulin-peg-cmcs-preconditioning-against-heart-ischemia-reperfusion-injury-in-diabetes-mellitus
#20
Fei Tong, Suhuan Liu, Bing Yan, Xuejun Li, Shiwei Ruan, Shuyu Yang
Introduction: Insulin has shown antioxidation and cytoprotective effects to decrease heart ischemia/reperfusion injury (HI/RI) in diabetes mellitus (DM), but the role of insulin/poly(ethylene glycol)-carboxymethyl chitosan (PEG-CMCS) on HI/RI in DM is not known. This research explored whether insulin/PEG-CMCS revealed a protective effect on HI/RI in DM through ornithine decarboxylase (ODC)/polyamine systems. Materials and methods: Diabetes was induced via streptozotocin (STZ) in Sprague Dawley (SD) rats, which suffered from HI via blocking the left circumflex artery for 45 minutes, followed by 2 hours of reperfusion...
2018: International Journal of Nanomedicine
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