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13468

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Wimonsiri Tedsana et al.
Analytica chimica acta, 867, 1-8 (2015-03-31)
A new circular dichroism sensor for detecting Ni(2+) and Co(2+) was proposed for the first time using chiral chelating quantum dots. The detection principle was based on changing of circular dichroism signals of the chiral quantum dots when forming a...
Jasmina Zivanovic et al.
Cell metabolism, 30(6), 1152-1170 (2019-11-19)
Life on Earth emerged in a hydrogen sulfide (H2S)-rich environment eons ago and with it protein persulfidation mediated by H2S evolved as a signaling mechanism. Protein persulfidation (S-sulfhydration) is a post-translational modification of reactive cysteine residues, which modulate protein structure...
Shiao, M.-J.; Lai, L.-L. et al.
The Journal of Organic Chemistry, 58, 4742-4742 (1993)
Reza Sahraei et al.
Nanotechnology, 28(47), 475604-475604 (2017-10-12)
We report here on a one-pot, mild and low cost aqueous-based synthetic route for the preparation of colloidally stable and highly luminescent dual-doped Ag,Ni:ZnCdS/ZnS core/shell quantum dots (QDs). The pure dopant emission of the Ni-doped core/shell QDs was found to...
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)...
Krzysztof Walczyński et al.
European journal of medicinal chemistry, 40(1), 15-23 (2005-01-12)
In search for a new lead of non-imidazole histamine H3-receptor antagonists, a series of 1[(2-thiazolopyridine)-4-n-propyl]piperazines, the analogous 1-[(2-oxazolopyridine)-4-npropyl]piperazines, 1-[(2-benzothiazole)-4-n-propyl]piperazine and 1-[(2-benzooxazole)4-n-propyl]piperazine were prepared and in vitro tested as H3-receptor antagonists (the electrically evoked contraction of the guinea-pig jejunum). It appeared...
Anamaria Baciu et al.
Sensors (Basel, Switzerland), 15(6), 14526-14538 (2015-06-24)
This work reported new voltammetric/amperometric-based protocols using a commercial boron-doped diamond (BDD) electrode for simple and fast simultaneous detection of sulfide and nitrite from water. Square-wave voltammetry operated under the optimized working conditions of 0.01 V step potential, 0.5 V...
Daniel E O'Brien et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 35(25), 9491-9507 (2015-06-26)
Extracellular signal-regulated kinases 1 and 2 (ERK1/2) are highly homologous yet distinct components of signal transduction pathways known to regulate cell survival and function. Recent evidence indicates an isoform-specific role for ERK2 in pain processing and peripheral sensitization. However, the...
Poly (carbonate ester) s based on units of 6-hydroxyhexanoic acid and glycerol.
Wolinsky JB, et al.
Macromolecules, 40(20), 7065-7068 (2007)
Jing Liu et al.
Bioresource technology, 181, 183-190 (2015-02-04)
The effectiveness of a biorefinery based on an HWE-Kraft-ECF bleaching process and the end use of pulp was systematically evaluated. Using a P-factor of 198, nearly 30% of xylan-based sugars were recovered. The resulting pulp and paper properties were found...
Priyanka Dutta et al.
ACS applied materials & interfaces, 7(44), 24778-24790 (2015-10-21)
This work reports the development of highly fluorescent materials for the selective and efficient detection of picric acid explosive in the nanomolar range by fluorescence quenching phenomenon. Poly(vinyl alcohol) grafted polyaniline (PPA) and its nanocomposites with 2-mercaptosuccinic acid (MSA)-capped CdTe...
Minwoo Lee et al.
Carbohydrate polymers, 159, 125-135 (2017-01-01)
A series of elastomeric nanocomposites with superior tensile strength and extensibility, simultaneously exhibiting softening, was prepared using in situ polymerization by homogeneously dispersing TEMPO-oxidized cellulose individualized nanofibers (TOCNs) in a polyurethane urea (PUU) matrix. The structure of these PUU composites...
Peter Baláž et al.
Materials science & engineering. C, Materials for biological applications, 58, 1016-1023 (2015-10-20)
CdS/ZnS nanocomposites have been prepared by a two-step solid-state mechanochemical synthesis. CdS has been prepared from cadmium acetate and sodium sulfide precursors in the first step. The obtained cubic CdS (hawleyite, JCPDS 00-010-0454) was then mixed in the second step...
Gordon Sproul
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 45(4), 427-437 (2015-08-08)
Researchers have formed peptide bonds under a variety of presumed prebiotic conditions. Here it is proposed that these same conditions would have also formed amide bonds between fatty acids and amino acids, producing phosphate-free amphipathic lipoamino acids and lipopeptides. These...
James P Hunter et al.
Annals of vascular surgery, 29(2), 353-360 (2014-11-30)
Remote renal ischemia-reperfusion injury (IRI) following infra-renal aortic occlusion leads to acute kidney injury and systemic inflammation. Hydrogen sulfide is a mediator of IRI and can ameliorate tissue injury in many organ systems. Its role in vascular surgery has yet...
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...
Vanda Cerè et al.
The Journal of organic chemistry, 70(2), 664-669 (2005-01-18)
Optically pure enantiomers of the chiral tetrahydroxythiepane derivative 3,6-dihydroxy-4,5-O-isopropylidene-thiepane (3) are obtained using a novel protocol in which a library of all possible stereoisomers of 3 is synthesized, followed by two-step stereoselective chromatography, using, first, conventional achiral and, then, chiral...
Qizhao Wang et al.
Scientific reports, 5, 13593-13593 (2015-09-05)
Morphology-controlled synthesis of CdS can significantly enhance the efficiency of its photocatalytic hydrogen production. In this study, a novel three-dimensional (3D) flower-like CdS is synthesized via a facile template-free hydrothermal process using Cd(NO3)2•4H2O and thiourea as precursors and L-Histidine as...
Natalie Forbes et al.
Physical chemistry chemical physics : PCCP, 17(24), 15569-15578 (2015-03-03)
Building additional functionality into both the membrane and the internal compartments of biocompatible liposomes by self-assembly can provide ways of enhancing colloidal stability and spatial and temporal control of contents release. An interdigitation-fusion process is used to encapsulate near infrared...
Nucleophilic substitution in glycerol derivatives. Part VI. Halogenodeoxygenation of 2-phenyl-1, 3-dioxan-5-ol to give 1, 3-dioxans and 1, 3-dioxolans.
Aneja R and Davies AP.
Journal of the Chemical Society. Perkin Transactions 1, 141-145 (1974)
Jafar Abolhasani et al.
Luminescence : the journal of biological and chemical luminescence, 30(5), 660-667 (2014-10-28)
A novel and highly sensitive chemiluminescence (CL) method for the determination of ethanol was developed based on the CdS quantum dots (QDs)-permanganate system. It was found that KMnO4 could directly oxidize CdS QDs in acidic media resulting in relatively high...
Zachary D Miles et al.
Biochemistry, 54(31), 4927-4935 (2015-08-01)
Queuosine is a hypermodified nucleoside present in the wobble position of tRNAs with a 5'-GUN-3' sequence in their anticodon (His, Asp, Asn, and Tyr). The 7-deazapurine core of the base is synthesized de novo in prokaryotes from guanosine 5'-triphosphate in...
Bin Bao et al.
Small (Weinheim an der Bergstrasse, Germany), 11(14), 1649-1654 (2015-02-03)
Fluorescent quantum dot nanocomposites, including polymer and photonic crystal quantum dots, have been fabricated by reactive inkjet printing. This reactive inkjet printing method has the potential to be broadened to fabrication of other functional nanomaterials, which will find promising applications...
Feixiang Zan et al.
Water research, 182, 115960-115960 (2020-07-06)
Volatile fatty acids (VFAs), the intermediate of the anaerobic process, are considered to be the critical, high-sensitive and reliable indicators of the process stability. Close monitoring and control of VFAs are paramount for the efficient operation of the anaerobic reactors....
Fatma Demir Duman et al.
Nanoscale, 7(26), 11352-11362 (2015-06-13)
The development of non-toxic theranostic nanoparticles capable of delivering a therapeutic cargo and providing a means for diagnosis is one of the most challenging tasks in nano-biotechnology. Gene therapy is a very important mode of therapy and polyethyleneimine (PEI) is...
Sushil K Jain et al.
Metabolic syndrome and related disorders, 12(5), 299-302 (2014-03-29)
Glutathione (GSH) deficiency and interleukin-1β (IL-1β) upregulation are linked to the progression of vascular inflammation and atherosclerosis. The consumption of sulfide-rich vegetables is known to lower the risk of atherosclerosis. This study examined the hypothesis that hydrogen sulfide (H2S) upregulates...
Danielle E Gorka et al.
Environmental science & technology, 49(16), 10093-10098 (2015-07-07)
The use of antibacterial silver nanomaterials in consumer products ranging from textiles to toys has given rise to concerns over their environmental toxicity. These materials, primarily nanoparticles, have been shown to be toxic to a wide range of organisms; thus...
Total synthesis of xerulinic acid.
Achim Sorg et al.
Angewandte Chemie (International ed. in English), 43(34), 4523-4526 (2004-09-02)
Jung-Che Tsai et al.
Chemistry, an Asian journal, 10(9), 1932-1939 (2015-07-15)
Mesoporous cobalt sulfide nanotube arrays on FTO-coated glass were synthesized by combining three simple technologies: the selective etching of ZnO sacrificial templates, mesoporous Co3 O4 formation from cobalt-chelated chitosan, and ion-exchange reaction (IER). The mesoporous Co3 O4 nanotubes composed of...
Jeewoo Lim et al.
Macromolecular rapid communications, 36(11), 1103-1107 (2015-04-08)
Sulfur-rich materials have recently attracted keen interest for their potentials in optical, electrochemical, and pesticidal applications as well as their utility in dynamic covalent bond chemistry. Many sulfur-rich polymers, however, are insoluble and processing methods are therefore very limited. The...
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