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Artificial Cells, Nanomedicine, and Biotechnology

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https://www.readbyqxmd.com/read/29774759/melatonin-stimulated-biosynthesis-of-anti-microbial-znonps-by-enhancing-bio-reductive-prospective-in-callus-cultures-of-catharanthus-roseus-var-alba
#1
Hafiza Rida Riaz, Syed Salman Hashmi, Tariq Khan, Christophe Hano, Nathalie Giglioli-Guivarc'h, Bilal Haider Abbasi
Melatonin as plant growth regulator induces differential effects on metabolites that are responsible for reduction, capping and stabilization of zinc oxide nanoparticles. Phytochemical analysis of callus cultures was performed and results were compared with callus cultures supplemented with other plant growth regulators (α-napthalene acetic acid, 2,4-dichlorophenoxy acetic acid and thidiazuron). Highest total phenolic and flavonoid content [42.23 mg of gallic acid equivalent (GAE) g-1 DW and 36.4 mg of (quercetin equivalent) g-1 DW, respectively] were recorded at melatonin (1...
May 18, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29774753/zn-2-loaded-cellulose-beads-stabilized-by-chitosan-and-prepared-via-freeze-drying-for-removing-human-testosterone-in-plasma
#2
Huibin Yu, Hongqin Ke, Tu Chen, Xing Li, Shenglong Tan, Lei Zhou, Shenqi Wang
Hemoperfusion using metal ion affinity adsorbent is a promising method to remove human testosterone in plasma. Due to the leakage of metal ion from the adsorbents, there is no metal ion affinity adsorbent for hemoperfusion. In this study, chitosan was used to coat the adsorbent for preventing the leakage of Zn2+ loaded. Meanwhile, freeze-drying method was used to enhance adsorption capacity of Zn2+ -loaded cellulose beads for testosterone. The results indicate that after the adsorbent was coated by 0.02% chitosan solution, the highest adsorption percentage reached 48%, during adsorption, the Zn2+ concentration in plasma did not increase; the adsorption capacity of the adsorbent can be significantly enhanced by freeze-drying...
May 18, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29771149/preparation-and-evaluation-of-tumour-microenvironment-response-multistage-nanoparticles-for-epirubicin-delivery-and-deep-tumour-penetration
#3
Jialing Dai, Shangcong Han, Fang Ju, Mei Han, Lisa Xu, Ruoyu Zhang, Yong Sun
Poor tumour penetration became a major challenge for the use of nanoparticles in anticancer therapy. To further enhance the tumour penetration efficiency, we developed a tumour-microenvironment-responsive multistage drug delivery system which was formed layer by layer via electrostatic interaction with cationic drug-loaded nanoparticles, hyaluronidase (HAase) and iRGD-modified gelatin (G-iRGD). The drug-loaded nanoparticles were formed by self-assembling mPEG-PDPA-PG and encapsulation with epirubicin (EPI)...
May 17, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29771147/gpf15-promotes-epithelial-to-mesenchymal-transition-in-colorectal-carcinoma
#4
Yifei Zhang, Xixun Wang, Menglai Zhang, Zhenbin Zhang, Lixin Jiang, Leping Li
Growth differentiation factor 15 (GDF15) is a divergent member of the transforming growth factor-β (TGF-β) superfamily that has been associated with colorectal cancers (CRC). However, the role of GDF15 in the progression of CRC remains unknown. We demonstrated that GDF15 expression was higher in fresh CRC tissues than in adjacent normal tissues. Moreover, we found that GDF15 overexpression significantly facilitated cell viability, cell invasion and migration (p < .01 or p < .05). The protein expression of N-cadherin, vimentin and Twist1 were up-regulated by GDF15 overexpression, while E-cadherin was down-regulated...
May 17, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29771146/nanosized-ethanol-based-malleable-liposomes-of-cytarabine-to-accentuate-transdermal-delivery-formulation-optimization-in-vitro-skin-permeation-and-in-vivo-bioavailability
#5
Rakesh Raj, Pooja Mongia Raj, Alpana Ram
Cytarabine is a pyrimidine nucleoside analog used predominantly for acute myeloid leukemia (AML) and also for other indications, including acute lymphocytic leukemia, chronic myelogenous leukemia, and lymphoma by parenteral route due to its low oral bioavailability. Parenteral administration requires constant plasma level, monitoring for its fluctuation and poor patients compliances. Hence the objective of this work is to construct optimized nanosized malleable liposomes of cytarabine to accentuate transdermal delivery of drug to circumvent previously mentioned drawbacks...
May 17, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29764213/a-novel-non-invasive-strategy-for-low-level-laser-induced-cancer-therapy-by-using-new-ag-zno-and-nd-zno-functionalized-reduced-graphene-oxide-nanocomposites
#6
Saeed Jafarirad, Ebrahim Hammami Torghabe, Seyed Hosseyn Rasta, Roya Salehi
In the present research, an effective drug-free approach was developed to kill MCF7 breast cancer cells using low-level laser therapy (LLLT) combined with reduced graphene oxide (rGO)-based hybrid nanocomposites (NCs). Here, fruit extract of Rosa canina was used for the first time to obtain the rGO/ZnO, Ag-ZnO/rGO and Nd-ZnO/rGO NCs by green synthesis. Physico/photochemical properties of these NCs were evaluated using FTIR, XRD, Raman, XPS, SEM/EDX, UV-Vis, DLS and AFM. The potential of the as-synthesized NCs on ROS generating and antioxidant activity were assessed by DPPH...
May 15, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29764208/de-esterified-tragacanth-chitosan-nano-hydrogel-for-methotrexate-delivery-optimization-of-the-formulation-by-taguchi-design
#7
Komail Sadrjavadi, Behzad Shahbazi, Ali Fattahi
The objective of the present study was to prepare and characterized de-esterified tragacanth-chitosan nanoparticles (DET-CS NPs) as a novel carrier for methotrexate, with a view to improve drug efficacy and target ability. The preparation process was optimized using Taguchi design. NPs were characterized for size, zeta potential, morphology, thermal stability, loading efficiency, cytotoxicity and cellular uptake. Taguchi design indicated that the molecular weight of chitosan possessed the most effect on the zeta potential, PDI, and zeta deviation, and the size of nanoparticles was significantly affected by the DET concentration...
May 15, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29757014/co-delivery-of-paclitaxel-and-tanespimycin-in-lipid-nanoparticles-enhanced-anti-gastric-tumor-effect-in-vitro-and-in-vivo
#8
Liang Ma, Dawei Yang, Zhaoxin Li, Xin Zhang, Lei Pu
Combined administration regimens are commonly used in cancer therapy to reduce cell toxicity and drug resistance. In this study, we use solid lipid nanoparticles (SLNs) as drug carriers and sought to investigate the effect of combined administration of paclitaxel (PTX) and tanespimycin (17-AAG) in gastric cancer. The SLNs loaded with paclitaxel and tanespimycin were prepared using the solvent injection method. The effect of encapsulated SLNs on cell viability and colony formation were measured in three human gastric cell lines...
May 14, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29749275/engineering-of-pectin-capped-gold-nanoparticles-for-delivery-of-doxorubicin-to-hepatocarcinoma-cells-an-insight-into-mechanism-of-cellular-uptake
#9
Shaivee Borker, Varsha Pokharkar
In this study, we have reported the fabrication and evaluation of pectin-capped gold nanoparticles (PEC-AuNPs) for delivery of anticancer drug, doxorubicin (DOX) to cells overexpressing asialoglycoprotein receptor (ASGPR). Pectin was used as a reducing, stabilizing and targeting agent. The pectin-capped gold nanoparticles demonstrated surface plasmon resonance band at 519 nm. The PEC-AuNPs were spherical in shape with a particle size of 14 nm and zeta potential value of -33 mV and were biocompatible and non-cytotoxic...
May 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29749273/enhanced-osteogenic-activity-with-boron-doped-nanohydroxyapatite-loaded-poly-butylene-adipate-co-terephthalate-fibrous-3d-matrix
#10
Aysu Arslan, Soner Çakmak, Menemşe Gümüşderelioğlu
In this study, three dimensional (3D) poly(butylene adipate-co-terephthalate) (PBAT) fibrous scaffolds with more than 90% porosity were fabricated via wet electrospinning method. Amorphous hydroxyapatite (HAp) and boron (B) doped hydroxyapatite (B-HAp) nanoparticles were produced by microwave-assisted biomimetic precipitation and encapsulated into PBAT fibres with the ratio of 5% (w/w) in order to enhance osteogenic activity of the scaffolds. Cell culture studies were carried out with human bone marrow derived stem cells (hBMSCs) and they showed that alkaline phosphatase (ALP) activity and the amounts of collagen and calcium were higher on B containing PBAT (B-HAp-PBAT) scaffolds during the 28-day culture period than that of the PBAT scaffolds...
May 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29749265/injectable-visible-light-cured-glycol-chitosan-hydrogels-with-controlled-release-of-anticancer-drugs-for-local-cancer-therapy-in-vivo-a-feasible-study
#11
Hoon Hyun, Min Ho Park, Wonbong Lim, So Yeon Kim, Danbi Jo, Jin Seok Jung, Gayoung Jo, Sewook Um, Deok-Won Lee, Dae Hyeok Yang
Currently available chemotherapy is associated with serious side effects, and therefore novel drug delivery systems (DDSs) are required to specifically deliver anticancer drugs to targeted sites. In this study, we evaluated the feasibility of visible light-cured glycol chitosan (GC) hydrogels with controlled release of doxorubicin⋅hydrochloride (DOX⋅HCl) as local DDSs for effective cancer therapy in vivo. The storage modulus of the hydrogel precursor solutions was increased as a function of visible light irradiation time...
May 11, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29745764/influence-of-polydopamine-mediated-surface-modification-on-oxygen-release-capacity-of-haemoglobin-based-oxygen-carriers
#12
Quan Wang, Ruirui Zhang, Guoxing You, Jilin Hu, Penglong Li, Ying Wang, Jun Zhang, Yan Wu, Lian Zhao, Hong Zhou
Oxidative toxicity has impeded the development of haemoglobin-based oxygen carriers (HBOCs) by causing methaemoglobin (MetHb) formation and inducing oxidative stress. In our previous work, polydopamine-coated haemoglobin (Hb-PDA) nanoparticles have been designed and synthesized with the capacity to reduce oxidative toxicity. In this investigation, the mass ratio of dopamine (DA) to haemoglobin (Hb) and the pH value are found to be the primary factors that influence preparation of Hb-PDA nanoparticles. X-ray photoelectron spectroscopy showed that the catechol groups of DA play a crucial role in the modification of Hb surface...
May 10, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29745729/anti-proliferate-and-apoptosis-triggering-potential-of-methotrexate-transferrin-conjugate-encapsulated-plga-nanoparticles-with-enhanced-cellular-uptake-by-high-affinity-folate-receptors
#13
Ankush Parmar, Atul Jain, Shivani Uppal, S K Mehta, Khuswinder Kaur, Bhupinder Singh, Rajat Sandhir, Shweta Sharma
The objective of the present study is to enhance the permeation of bioactive molecules across highly lipophilic insurmountable blood brain barrier (BBB) using folic acid (FA) functionalized poly(lactic-co-glycolic acid) (PLGA) nanoparticles (FA-PNPs) coated with non-ionic surfactant, Polysorbate 80 (P80 ). The developed Mtx-Tf loaded folic acid anchored PNPs formulation depicted particle size, zeta potential and entrapment efficiency of 109 ± 2.3 nm, -9.38 ± 0.9 mV and 71.0 ± 0.6%, respectively...
May 10, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29741418/the-effect-of-sio-2-au-core-shell-nanoparticles-on-breast-cancer-cell-s-radiotherapy
#14
Ghazal Darfarin, Roya Salehi, Effat Alizadeh, Behnam Nasiri Motlagh, Abolfazl Akbarzadeh, Alireza Farajollahi
INTRODUCTION: Recently it has been shown that radiation dose enhancement could be achievable in radiotherapy using nanoparticles (NPs). In this study, evaluation was made to determine efficiency of gold-silica shell-core NP in megavoltage irradiation of MCF7 breath cancer cells. MATERIALS AND METHODS: Gold-silicon oxide shell-core NPs were obtained by conjugation of gold NP with amine or thiol functionalized silica NPs (AuN@SiO2 and AuS@SiO2 ). Cellular uptake and cytotoxicity of NPs were examined by fluorescent microscopy and MTT assay, respectively...
May 9, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29741395/the-effects-of-gold-nanoparticles-on-the-human-blood-functions
#15
Zeng He, Changjian Li, Xiaojie Zhang, Rui Zhong, Hong Wang, Jiaxin Liu, Libo Du
The gold nanoparticles (AuNPs) have been widely used as drug delivery systems at several biomedical fields. However, the effect of AuNPs on the components of human blood is not well characterized. AuNPs firstly interacted with blood when using AuNPs as the drug delivery carries. Therefore, it is urgent to investigate the effect of AuNPs (including the ligands of AuNPs) on human blood, especially its components. In this study, we investigated the possible effects of polyethylene glycol-coated AuNPs (PEG@AuNPs) and citric acid-coated AuNPs (CT-AuNPs) on the blood cell function and distribution of those nanoparticles in blood components including erythrocytes, leukocytes, platelets (PLTs) cells and plasma...
May 9, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29741394/effective-combination-therapy-of-percutaneous-ethanol-injection-and-chemotherapy-based-on-injectable-low-molecular-weight-gels
#16
Guotao Li, Yan Liang, Changzhen Sun, Xinyu Peng, Na Hao, Miaochang Liu, Wenxia Gao, Huayue Wu, Bin He
Percutaneous ethanol injection (PEI) therapy was used in liver cancer treatment, however, the therapeutic ethanol in PEI easily flew away from injected solid tumours and hinder the treatment effect. In this paper, injectable supramolecular gels formed by self-assembly of low molecular weight gelators (LMWGs) based on glycylglycine modified phenylboronic acid were prepared to localize ethanol and load chemotherapeutic drug for in situ synergistic therapy. The mechanism, morphology and rheological property of supramolecular gels were characterized by NMR, UV, SEM, etc...
May 9, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29741393/molecular-docking-of-immunogenic-peptide-of-toxoplasma-gondii-and-encapsulation-with-polymer-as-vaccine-candidate
#17
Rabia Cakir-Koc, Yasemin Budama-Kilinc, Yagmur Kokcu, Serda Kecel-Gunduz
Toxoplasma gondii is one of the most widely spread parasitic organisms in the world. T. gondii causes primary, chronic infection and mortality. Major surface antigen 1 is the most abundant tachyzoite surface protein and highly conserved between species and causes strong humoural response. Some studies showed that the peptide sequence of surface antigen has immunity. Therefore, tachyzoite surface antigenic peptide sequence is one of the good candidates for vaccine development. However, conformational information and delivery systems are very important parameters for vaccine development...
May 9, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29730964/development-of-transethosomes-formulation-for-dermal-fisetin-delivery-box-behnken-design-optimization-in-vitro-skin-penetration-vesicles-skin-interaction-and-dermatokinetic-studies
#18
Thasleem Moolakkadath, Mohd Aqil, Abdul Ahad, Syed Sarim Imam, Babar Iqbal, Yasmin Sultana, Mohd Mujeeb, Zeenat Iqbal
The present study was conducted for the optimization of transethosomes formulation for dermal fisetin delivery. The optimization of the formulation was carried out using "Box-Behnken design". The independent variables were Lipoid S 100, ethanol and sodium cholate. The prepared formulations were characterized for vesicle size, entrapment efficiency and in vitro skin penetration study. The vesicles-skin interaction, confocal laser scanning microscopy and dermatokinetic studies were performed with optimized formulation...
May 7, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29726299/in-vivo-immunogenicity-of-bovine-bone-removed-by-a-novel-decellularization-protocol-based-on-supercritical-carbon-dioxide
#19
Ling You, Xu Weikang, Yang Lifeng, Liang Changyan, Lin Yongliang, Wei Xiaohui, Xu Bin
Trauma or infections associated critical bone defects lead to a huge economic burden in the healthcare system worldwide. Recent advances in tissue engineering have led to potential new strategies for the repair, replacement, and regeneration of bone defects, especially in biomaterials and decellularization protocols from xenogenic tissues. However, the complexity in bone structure and mechanical environment limits the synthesis of artificial bone with biomaterials. Thus, the purpose of our study is to develop a natural bone scaffold with great immunocompatibility...
May 4, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29726296/folate-molecular-encapsulator-tethered-biocompatible-polymer-grafted-with-magnetic-nanoparticles-for-augmented-drug-delivery
#20
Sivaraj Ramasamy, Rex Jeya Rajkumar Sam David, Israel V M V Enoch
Magnetic ferrite nanoparticles (MNPs) coated with biocompatible polymers capable of drug loading and release are fascinating nanostructures for delivering anti-cancer drugs. Herein, we report the synthesis and characterization of a novel β-cyclodextrin-folate-tethered dextran polymer. Nickel-zinc ferrite nanoparticles are prepared and coated with the polymer to form a biocompatible hybrid magnetic nanocarrier. To establish the significance of folate unit of the polymer in anticancer activity, a similar derivatized polymer, i...
May 4, 2018: Artificial Cells, Nanomedicine, and Biotechnology
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