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E1769
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Yan Zhang et al.
Macromolecular bioscience, 14(6), 842-852 (2014-04-18)
This work deals with the synthesis of insulin loaded nanoparticles (NPs) composed of thiolated Eudragit L100 (Eul-cys) and reduced glutathione (GSH) as potential nanocarriers for oral delivery of insulin. Perfectly spherical NPs with an average particle size of nearly 200-300 nm
Chenbo Dong et al.
Environmental science. Nano, 1(6), 95-603 (2014-12-09)
Toxicity of engineered nanomaterials is associated with their inherent properties, both physical and chemical. Recent studies have shown that exposure to multi-walled carbon nanotubes (MWCNTs) promotes tumors and tumor-associated pathologies and lead to carcinogenesis in model
Michaela Čadková et al.
Analytical biochemistry, 484, 4-8 (2015-05-13)
Screen-printed platinum electrodes as transducer and magnetic beads as solid phase were combined to develop a particle-based electrochemical immunosensor for monitoring the serious food allergen ovalbumin. The standard arrangement of enzyme-linked immunosorbent assay became the basis for designing the immunosensor.
Vaidyanathan Vinoth Kumar et al.
Bioresource technology, 200, 81-89 (2015-10-18)
The present study investigated the applicability of a laccase based bioprocess for the treatment of a mixture containing 13 selected pharmaceuticals. To do so, laccase was immobilized as cross-linked enzyme aggregates (MAC-CLEAs) on amine functionalized magnetic nanoparticles using chitosan/1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride
Kalpana Mandal et al.
Nature communications, 5, 5749-5749 (2014-12-11)
Cells sense and respond to their mechanical environment by exerting forces on their surroundings. The way forces are modulated by extra-cellular matrix (ECM) properties plays a key role in tissue homoeostasis. Using highly resolved micropatterns that constrain cells into the
Hannah C Bygd et al.
Biomaterials, 56, 187-197 (2015-05-03)
Macrophage reprogramming has long been the focus of research in disease therapeutics and biomaterial implantation. With different chemical and physical properties of materials playing a role in macrophage polarization, it is important to investigate and categorize the activation effects of
Chien-Chen Lin et al.
Biomaterials, 31(32), 8445-8453 (2010-08-17)
Monoclonal antibodies (mAbs) have been proven useful in research and clinical applications. However, the generation of mAbs by conventional hybridoma technology is time-, cost- and labor-consuming. Here we developed a simplified procedure for efficient generation and selection of antibody-producing hybridomas
Zhixun Xie et al.
PloS one, 9(4), e94685-e94685 (2014-04-16)
We report a novel electrochemical immunosensor that can sensitively detect avian influenza virus H5 subtype (AIV H5) captured by graphene oxide-H5-polychonal antibodies-bovine serum albumin (GO-PAb-BSA) nanocomposite. The graphene oxide (GO) carried H5-polychonal antibody (PAb) were used as signal amplification materials.
Vimala N Bharadwaj et al.
Tissue engineering. Part A, 26(13-14), 688-701 (2020-07-23)
The development of effective therapeutics for brain disorders is challenging, in particular, the blood-brain barrier (BBB) severely limits access of the therapeutics into the brain parenchyma. Traumatic brain injury (TBI) may lead to transient BBB permeability that affords a unique
Haibing He et al.
International journal of pharmaceutics, 493(1-2), 451-459 (2015-08-09)
To improve the oral absorption of insulin, a novel carrier of Vitamin B12 (VB12) gel core solid lipid nanopaticles (Gel-Core-SLN, GCSLN) was designed with a gel core, lipid matrix and VB12-coated surface. VB12-stearate was synthesized and characterized by infrared spectroscopy
Henry H Lee et al.
Nature communications, 10(1), 2383-2383 (2019-06-05)
DNA is an emerging medium for digital data and its adoption can be accelerated by synthesis processes specialized for storage applications. Here, we describe a de novo enzymatic synthesis strategy designed for data storage which harnesses the template-independent polymerase terminal
Sidi A Bencherif et al.
Nature communications, 6, 7556-7556 (2015-08-13)
A biomaterial-based vaccination system that uses minimal extracorporeal manipulation could provide in situ enhancement of dendritic cell (DC) numbers, a physical space where DCs interface with transplanted tumour cells, and an immunogenic context. Here we encapsulate GM-CSF, serving as a
Directed evolution of artificial enzymes (XNAzymes) from diverse repertoires of synthetic genetic polymers
Taylor AI and Holliger P
Nature Protocols, 10(10), 1625-1625 (2015)
Sabine Hauptstein et al.
Journal of pharmaceutical sciences, 103(2), 594-601 (2014-01-03)
The objective of this study was to generate a water-soluble thiolated chitosan to enable the permeation-enhancing effect of chitosan at pH of at least 5.5 without losing the advantages of improved mucoadhesive properties. Therefore, the thiol-bearing polyoxyethylene ligand {O-(3-carboxylpropyl)-O'-[2-[3-mercaptopropionylamino)ethyl]-polyethyleneglycol} was
Peng Guo et al.
Theranostics, 6(1), 1-13 (2016-01-02)
Lipocalin 2 (Lcn2) is a promising therapeutic target as well as a potential diagnostic biomarker for breast cancer. It has been previously shown to promote breast cancer progression by inducing the epithelial to mesenchymal transition in breast cancer cells as
Peng Yan et al.
Acta biomaterialia, 10(8), 3786-3794 (2014-05-13)
The fabrication of highly efficient nonviral gene carriers with low cytotoxicity remains a challenge in gene therapy. This paper reports a facile strategy to combine the advantages of gold nanorods (Au NRs) and polycations through surface functionalization. Different Au NR
Thanh-Huyen Tran et al.
Scientific reports, 5, 16632-16632 (2015-11-19)
The purpose of this study was to modulate macrophage polarity from the pro-inflammatory M1 to anti-inflammatory M2 phenotype using plasmid DNA (pDNA) expressing interleukin-4 (IL4) or interleukin-10 (IL10)-encapsulated in hyaluronic acid-poly(ethyleneimine) (HA-PEI) nanoparticles (NPs). The HA-PEI/pDNA NPs with spherical shape
António Maximiano Fernandes et al.
Biosensors & bioelectronics, 63, 399-406 (2014-08-16)
In this paper, we reported the construction of new high sensitive electrochemical genosensor based on multiwalled carbon nanotubes-chitosan-bismuth complex (MWCNT-Chi-Bi) and lead sulfide nanoparticles for the detection of pathogenic Aeromonas. Lead sulfide nanoparticles capped with 5'-(NH2) oligonucleotides thought amide bond
S Guerrero et al.
The Analyst, 140(22), 7527-7533 (2015-08-11)
The first electrochemical immunosensor for the determination of peptide YY is reported in this paper. A novel electrochemical platform, prepared by the electrochemical grafting of the diazonium salt of 4-aminobenzoic acid onto a reduced graphene oxide-modified glassy carbon electrode, was
Meirong Huo et al.
Journal of pharmaceutical sciences, 104(6), 2018-2028 (2015-03-31)
In this study, a novel PTX prodrug, octreotide(Phe)-polyethene glycol-paclitaxel [OCT(Phe)-PEG-PTX], was successfully synthesized and used for targeted cancer therapy. A nontargeting conjugate, mPEG-PTX, was also synthesized and used as a control. Chemical structures of OCT(Phe)-PEG-PTX and mPEG-PTX were confirmed using
Adam J McShane et al.
Journal of the American Society for Mass Spectrometry, 25(10), 1694-1704 (2014-08-06)
Direct reductive methylation of peptides is a common method for quantitative proteomics. It is an active derivatization technique; with participation of the dimethylamino group, the derivatized peptides preferentially release intense a1 ions. The advantageous generation of a1 ions for quantitative
In-Cheol Sun et al.
Pharmaceutical research, 31(6), 1418-1425 (2013-08-13)
The application of gold nanoparticles (AuNPs) in biomedical field was limited due to the low stability in the biological condition. Herein, to enhance stability and tumor targeting ability of AuNPs, their surface was modified with biocompatible glycol chitosan (GC) and
Natasha Buwa et al.
FEBS letters, 595(4), 532-547 (2020-12-15)
Integrin-mediated adhesion regulates cellular responses to changes in the mechanical and biochemical properties of the extracellular matrix. Cell-matrix adhesion regulates caveolar endocytosis, dependent on caveolin 1 (Cav1) Tyr14 phosphorylation (pY14Cav1), to control anchorage-dependent signaling. We find that cell-matrix adhesion regulates
Yi Liu et al.
International journal of nanomedicine, 10, 2295-2311 (2015-04-08)
7-Ethyl-10-hydroxycamptothecin (SN38), an active metabolite of irinotecan (CPT-11), is a remarkably potent antitumor agent. The clinical application of SN38 has been extremely restricted by its insolubility in water. In this study, we successfully synthesized two macromolecular prodrugs of SN38 with
Manuela Curcio et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 93, 281-292 (2015-04-29)
The aim of this work was to prepare polysaccharide-based nanoparticles (NPs) sensitive to glutathione (GSH), and to elucidate the effect of the concentration of glucose used as cryoprotectant during freeze-drying on the GSH-responsiveness. NPs were obtained via ionic interaction between
Herman S Mansur et al.
Materials science & engineering. C, Materials for biological applications, 52, 61-71 (2015-05-09)
Cancer remains one of the world's most devastating diseases with millions of fatalities and new cases every year. In this work, we attempted to develop a facile "enzyme-free" fluoroimmunoassay based on the novel nanoconjugates composed of CdS quantum dots (QDs)
Dietmar Reusch et al.
mAbs, 7(4), 732-742 (2015-05-23)
To monitor the Fc glycosylation of therapeutic immunoglobulin G in bioprocess development, product characterization and release analytics, reliable techniques for glycosylation analysis are needed. Several analytical methods are suitable for this application. We recently presented results comparing detection methods for
Hernán R Rengifo et al.
Advanced healthcare materials, 3(7), 1061-1070 (2014-02-06)
Clinical islet transplantation (CIT) has emerged as a promising treatment option for type 1 diabetes mellitus (T1DM); however, the antirejection drug regimen necessary to mitigate allograft islet rejection is undesirable. The use of polymeric coatings to immunocamouflage the transplant from
Chuan-Hua Zhou et al.
Chemistry, an Asian journal, 10(6), 1387-1393 (2015-03-31)
A highly sensitive electrochemical immunosensor for avian influenza A (H7N9) virus (H7N9 AIV) detection was proposed by using electrochemical magnetoimmunoassay coupled with biometallization and anodic stripping voltammetry. This strategy could accumulate the enzyme-generated product on the surface of the magneto
Ibrahima Youm et al.
Pharmaceutical research, 31(9), 2439-2452 (2014-03-20)
It is hypothesized that docetaxel (Doc)-loaded hyaluronic acid (HA)-polyethylene glycol/poly(ε-caprolactone)-grafted oily core nanocapsules (NCs) can enhance the drug cytotoxicity and uptake in CD44 expressing breast cancer (BC) cells (MDA-MB 231). NCs were prepared, optimized and characterized by dynamic light scattering
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