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Facile and Gram-scale Synthesis of Metal-free Catalysts: Toward Realistic Applications for Fuel Cells.
Kim OH, et al.
Scientific Reports, 5 (2015)
Scott Boitano et al.
PloS one, 9(6), e99140-e99140 (2014-06-14)
Protease-activated receptor-2 (PAR2) is a G-Protein Coupled Receptor (GPCR) activated by proteolytic cleavage to expose an attached, tethered ligand (SLIGRL). We evaluated the ability for lipid-tethered-peptidomimetics to activate PAR2 with in vitro physiological and Ca2+ signaling assays to determine minimal
Paresh A Parmar et al.
Biomaterials, 54, 213-225 (2015-04-25)
Regenerative medicine strategies for restoring articular cartilage face significant challenges to recreate the complex and dynamic biochemical and biomechanical functions of native tissues. As an approach to recapitulate the complexity of the extracellular matrix, collagen-mimetic proteins offer a modular template
Ushasri Chilakamarthi et al.
Experimental cell research, 327(1), 91-101 (2014-06-08)
Targeted molecular imaging to detect changes in the structural and functional organization of tissues, at the molecular level, is a promising approach for effective and early diagnosis of diseases. Quantitative and qualitative changes in type I collagen, which is a
Carina S D Wink et al.
Analytical and bioanalytical chemistry, 407(6), 1545-1557 (2015-01-13)
Lefetamine (N,N-dimethyl-1,2-diphenylethylamine, L-SPA) was marketed as an opioid analgesic in Japan and Italy. After being widely abused, it became a controlled substance. It seems to be a pharmaceutical lead for designer drugs because N-ethyl-1,2-diphenylethylamine (NEDPA) and N-iso-propyl-1,2-diphenylethylamine (NPDPA) were confiscated
Seyedsina Moeinzadeh et al.
Tissue engineering. Part A, 21(1-2), 134-146 (2014-07-23)
An attractive approach to reduce the undesired side effects of bone morphogenetic proteins (BMPs) in regenerative medicine is to use osteoinductive peptide sequences derived from BMPs. Although the structure and function of BMPs have been studied extensively, there is limited
Akiyoshi Hirata et al.
Journal of the American Chemical Society, 136(32), 11546-11554 (2014-07-19)
A polyamide containing N-methylpyrrole (Py) and N-methylimidazole (Im), designated PIPA, binds with high affinity and specificity to specific nucleotide sequences in the minor groove of double-helical DNA. Based on a recent report of the synthesis of PIPA for telomere visualization
Falk Kunkel et al.
Molecules (Basel, Switzerland), 20(11), 20805-20822 (2015-11-28)
DNA methyltransferases (MTases) catalyze the transfer of the activated methyl group of the cofactor S-adenosyl-l-methionine (AdoMet or SAM) to the exocyclic amino groups of adenine or cytosine or the C5 ring atom of cytosine within specific DNA sequences. The DNA
Patrick J Stahl et al.
Analytical biochemistry, 424(2), 137-139 (2012-03-06)
Here we present a highly efficient protocol for on-the-resin coupling of fluorescent dyes or other functional groups to the N-termini of synthetic peptides prior to cleavage and deprotection. The protocol avoids expensive preactivated dyes and instead employs carboxylated dyes activated
Homan Kang et al.
Scientific reports, 5, 10144-10144 (2015-05-29)
Recently, preparation and screening of compound libraries remain one of the most challenging tasks in drug discovery, biomarker detection, and biomolecular profiling processes. So far, several distinct encoding/decoding methods such as chemical encoding, graphical encoding, and optical encoding have been
Nagappanpillai Adarsh et al.
Analytical chemistry, 86(18), 9335-9342 (2014-08-26)
With an objective to develop optical probes for biologically important anions and neutral molecules, we synthesized three novel NIR absorbing aza-BODIPY derivatives, 3a-3c, and have systematically tuned their photophysical properties by changing the peripheral substitution. A profound red-shift was observed
Matthias Vogel et al.
Journal of the American Society for Mass Spectrometry, 26(9), 1617-1625 (2015-07-01)
The development of a new class of erythropoietin mimetic agents (EMA) for treating anemic conditions has been initiated with the discovery of oligopeptides capable of dimerizing the erythropoietin (EPO) receptor and thus stimulating erythropoiesis. The most promising amino acid sequences
M Beyermann et al.
International journal of peptide and protein research, 37(4), 252-256 (1991-04-01)
The effect of tertiary amine (DIEA) on reaction rate and product purity of a carbodiimide/HOBt-mediated peptide synthesis was studied. It was found that very rapid activation can be achieved using carbodiimide/HOBt in non-polar solvents, such as DCM. Although the HOBt
Coralie Charrat et al.
Chembiochem : a European journal of chemical biology, 16(5), 792-804 (2015-02-18)
We describe the formulation of synthetic virus models based on ionic compounds bearing the polymerizable 1,2-dithiolane moiety. First, cationic amphiphiles containing the polymeric inducer were prepared and used to efficiently condense a DNA plasmid (pDNA) into a highly monodisperse population
Wen Shi et al.
Biomaterials, 35(22), 5760-5770 (2014-04-24)
N-(2-hydroxypropyl)-methacrylamide (HPMA) copolymers have shown promise for application in the detection and staging of cancer. However, non-target accumulation, particularly in the liver and spleen, hinders the detection of resident or nearby metastatic lesions thereby decreasing diagnostic effectiveness. Our laboratory has
Ramona Galatola et al.
European journal of medicinal chemistry, 86, 589-604 (2014-09-15)
The development of peptide fusion inhibitors based on short synthetic peptides represents a promising option in the fight against HIV-1 infection, especially in individuals infected with multiresistant HIV-1 strains. GBV-C has the beneficial effect of retarding the progression of AIDS
Evgeni Eltzov et al.
Analytical chemistry, 87(7), 3655-3661 (2015-03-17)
Indoor air pollution became a recent concern found to be oftentimes worse than outdoor air quality. We developed a tool that is cheap and simple and enables continuous monitoring of air toxicity. It is a biosensor with both a nondisposable
Soo Min Cho et al.
Scientific reports, 4, 6777-6777 (2014-10-28)
Amyloid-β (Aβ) is one of the few neuropathological biomarkers associated with transporters of the blood-brain barrier (BBB). Despite the well-characterized clinical indication of decreasing Aβ levels in the cerebrospinal fluid (CSF) during the development of Alzheimer's disease (AD), the link
Linnea Olofsson et al.
Nature communications, 5, 5206-5206 (2014-10-18)
Efficient cell-to-cell communication relies on the accurate signalling of cell surface receptors. Understanding the molecular bases of their activation requires the characterization of the dynamic equilibrium between active and resting states. Here, we monitor, using single-molecule Förster resonance energy transfer
Mingqian Tan et al.
Pharmaceutical research, 31(6), 1469-1476 (2013-03-09)
To synthesize and evaluate a peptide targeted nanoglobular dual modal imaging agent specific to a cancer biomarker in tumor stroma for MRI and fluorescence visualization of prostate tumor in image-guided surgery. A peptide (CGLIIQKNEC, CLT1) targeted generation 2 nanoglobular (polylysine
Jae H Park et al.
Journal of medicinal chemistry, 57(15), 6623-6631 (2014-07-16)
The aqueous solution structure of protoxin II (ProTx II) indicated that the toxin comprises a well-defined inhibitor cystine knot (ICK) backbone region and a flexible C-terminal tail region, similar to previously described NaSpTx III tarantula toxins. In the present study
Ikuhiko Nakase et al.
Scientific reports, 5, 10112-10112 (2015-05-27)
Exosomes, which are approximately 100 nm vesicles secreted by cells, have been studied with respect to cell-to-cell communication, disease diagnosis, and intracellular delivery. The cellular uptake of exosomes occurs by endocytosis; however, the cytosolic release efficiency of encapsulated molecules inside
Kai Zhu et al.
International journal of nanomedicine, 9, 5203-5215 (2014-11-28)
Mesenchymal stem cell (MSC) transplantation has attracted much attention in myocardial infarction therapy. One of the limitations is the poor survival of grafted cells in the ischemic microenvironment. Small interfering RNA-mediated prolyl hydroxylase domain protein 2 (PHD2) silencing in MSCs
Levente E Dókus et al.
European journal of medicinal chemistry, 82, 274-280 (2014-06-11)
Calpains are intracellular cysteine proteases with important physiological functions. Up- or downregulation of their expression can be responsible for several diseases, therefore specific calpain inhibitors may be considered as promising candidates for drug discovery. In this paper we describe the
Julfikar Hassan Mondal et al.
Soft matter, 11(24), 4912-4920 (2015-05-27)
A systematic study of the ternary complex formation process for aromatic amino acids using ucurbit[8]uril (CB[8]) and a viologen amphiphile shows that the affinity of the amino acid needs to be higher or in a comparable range to that of
Junfeng Shi et al.
Biomacromolecules, 15(10), 3559-3568 (2014-09-18)
Peptides made of D-amino acids, as the enantiomer of corresponding L-peptides, are able to resist proteolysis. It is, however, unclear or much less explored whether or how D-amino acids affect the cellular response of supramolecular nanofibers formed by enzyme-triggered self-assembly
Małgorzata Cebo et al.
Analytical and bioanalytical chemistry, 406(30), 8013-8020 (2014-10-31)
Isotope exchange at the histidine C2 atom of imidazole in D2O solution is well known to occur at a significantly slower rate than the exchange of amide protons. Analysis of the kinetics of this isotope-exchange reaction is proposed herein as
Eun Ju Oh et al.
Bioconjugate chemistry, 19(12), 2401-2408 (2008-11-15)
Agonistic and antagonistic peptides for formyl peptide receptor like 1 (FPRL1) receptor have been investigated as novel drug candidates for inflammatory diseases such as sepsis, asthma, and rheumatoid arthritis. In this work, a novel protocol for the synthesis of hyaluronic
Elisa Fernandez-Garcia et al.
Journal of dentistry, 43(9), 1162-1174 (2015-06-27)
Titanium materials have been functionalized with biomolecules as a modern strategy to incorporate bioactive motifs that will expand and improve their biomedical applications. Here, we have biofunctionalized biomaterials based on zirconia of much interest for dentistry: the widely used bioceramic
Elisa Dassie et al.
International journal of nanomedicine, 10, 6811-6823 (2015-11-21)
For many years, novel strategies for cancer detection and treatment using nanoparticles (NPs) have been developed. Esophageal adenocarcinoma is the sixth leading cause of cancer-related deaths in Western countries, and despite recent advances in early detection and treatment, its prognosis
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