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Showing 1-27 of 27 results for "225541" within Papers
Aleksander Promiński et al.
Materials (Basel, Switzerland), 13(4) (2020-02-23)
Achieving remotely controlled, reversibly reconfigurable assemblies of plasmonic nanoparticles is a prerequisite for the development of future photonic technologies. Here, we obtained a series of gold-nanoparticle-based materials which exhibit long-range order, and which are controlled with light or thermal stimuli.
Improved procedure for the selective N-debenzylation of benzylamines by diisopropyl azodicarboxylate
Kroutil J, et al.
Synthesis, 2004(03), 446-450 (2004)
Kazuki Kurahayashi et al.
Bioscience, biotechnology, and biochemistry, 84(8), 1554-1559 (2020-05-01)
Hot water extraction of D-arabinofuranosylvitexin from the raw leaves of commercially available Basella alba "Tsurumurasaki" and subsequent acidic hydrolysis was improved to be a procedure using a high-pressure steam sterilizer to afford vitexin. The amount was estimated to be 14.1
Marcelle L Ferguson et al.
Journal of the American Chemical Society, 128(14), 4576-4577 (2006-04-06)
Allylic phosphonium ylides are readily generated by the combination of an allylic alcohol, a carbene, and a chlorophosphite. Here we demonstrate that these intermediates undergo a thermal [3,3]-rearrangement to provide single isomers of homoallylic phosphonates in good to excellent yields.
Gizem Kahraman et al.
Polymers, 11(4) (2019-04-10)
Grubbs-catalyzed ring-opening metathesis polymerization (ROMP) of carborane- and phosphonate-containing monomers has been used for the generation of hybrid block copolymers. Molecular weights with Mn of 50,000 g/mol were readily obtained with polydispersity index values, Đ, between 1.03⁻1.08. Reaction of the
Sanghwa Lee et al.
Journal of the American Chemical Society, 142(32), 13974-13981 (2020-07-17)
Atomically precise coinage metal (Au, Ag, and Cu) nanoclusters (NCs) have been the subject of immense interest for their intriguing structural, photophysical, and catalytic properties. However, the synthesis of Cu NCs is highly challenging because of low reduction potential and
Zhi-Huang Qiu et al.
The Annals of thoracic surgery, 110(3), 925-932 (2020-01-29)
The efficacy of hemiarch replacement combined with a modified triple-branched stent graft in Debakey type I aortic dissection remains to be confirmed. From January 2016 to December 2017, 167 patients with acute Debakey type I aortic dissection underwent hemiarch replacement
Wenhua Ji et al.
Journal of chromatography. A, 1368, 44-51 (2014-12-03)
Dummy molecularly imprinted polymers (DMIPs) for simultaneously selective removal and enrichment of ginkgolic acids (GAs) during the processing of Ginkgo biloba leaves have been prepared. Two dummy template molecule with similar structural skeleton to GAs, 6-methoxysalicylic acid (MOSA, DT-1) and
Zulan Li et al.
Biosensors & bioelectronics, 166, 112444-112444 (2020-08-08)
How to balance the sensitivity and signal-to-noise ratio of immunosensor remains many challenges during various diseases diagnosis. Here we develop a new microfluidic immunosensor based on surface-modified mesoporous nanofibers, and simultaneously realize an ultra-sensitivity and high signal-to-noise ratio for the
An investigation of the Mitsunobu reaction in the preparation of peptide oxazolines, thiazolines, and aziridines
Wipf P and Miller CP
Tetrahedron Letters, 33(42), 6267-6270 (1992)
Eun-Hye Kim et al.
Journal of materials chemistry. B, 8(44), 10162-10171 (2020-10-24)
Monoclonal antibodies have been developed as anticancer agents to block immune checkpoint pathways associated with programmed cell death 1 (PD-1) and its ligand PD-L1. However, the high cost of antibodies has encouraged researchers to develop other inhibitor types. Here, biphenyl
Regina Kelmansky et al.
Acta biomaterialia, 53, 93-99 (2017-02-13)
Many bio-adhesive materials adhere weakly to tissue due to their high water content and weak structural integrity. Others provide desirable adhesive strength but suffer from rigid structure and lack of elasticity after administration. We have developed two water-free, liquid four-armed
Susanne Kirchhof et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 96, 217-225 (2015-08-09)
Eight-armed PEG was functionalized with furyl and maleimide groups (8armPEG20k-Fur and 8armPEG20k-Mal); degradable hydrogels were obtained by cross-linking via Diels-Alder chemistry. To increase the stability to degradation, the macromonomers were modified by introducing a hydrophobic 6-aminohexanoic acid spacer between PEG
Gerasimos Rassias et al.
European journal of medicinal chemistry, 210, 112948-112948 (2020-11-04)
Βradykinin stimulation of B2 receptor is known to activate the oncogenic ERK pathway and overexpression of bradykinin receptors B1 and B2 has been reported to occur in glioma, colorectal and cervical cancers. B1R and B2R antagonists have been shown to
Xianjin Lan et al.
Journal of hazardous materials, 375, 26-32 (2019-04-30)
The worldwide environmental occurrence of natural steroid estrogens has drawn increasing concerns. However, the fate of the estrogens, especially the α-isomer of estradiol, in the environmental matrices is still obscure. Using 14C-radioactively labelled forms of these estrogens can facilitate and
Peter E Deak et al.
Journal of immunology (Baltimore, Md. : 1950), 203(1), 21-30 (2019-05-19)
Drug allergies occur when hapten-like drug metabolites conjugated to serum proteins, through their interactions with specific IgE, trigger allergic reactions that can be life threatening. A molecule termed covalent heterobivalent inhibitor (cHBI) was designed to specifically target drug hapten-specific IgE
Aza-Baylis-Hillman reactions of diisopropyl azodicarboxylate or diethyl azodicarboxylate with acrylates and acrylonitrile
Shi M and Zhao G-L
Tetrahedron, 60(9), 2083-2089 (2004)
W Neumann et al.
Dalton transactions (Cambridge, England : 2003), 44(4), 1748-1753 (2014-12-04)
Carbaboranes are increasingly used as pharmacophores to replace phenyl substituents in established drug molecules. In contrast to traditional organic chemistry, elaborate procedures to introduce functionality frequently fail in the case of carbaboranes and their chemistry is often hampered by degradation
Carlos Martínez-Aquino et al.
Nanomaterials (Basel, Switzerland), 9(2) (2019-03-01)
Gold nanoparticles functionalized with resorcinol moieties have been prepared and used for detecting formaldehyde both in solution and gas phases. The detection mechanism is based on the color change of the probe upon the aggregation of the nanoparticles induced by
Atul K Sharma et al.
Carbohydrate research, 449, 37-46 (2017-07-09)
Two new nano-sized fluorescent 6-amino agarose naphthalic acid half ester derivatives were synthesized (ca.60% yields) employing 1,8- and 2,3-naphthalic acid anhydrides (1,8-AANE, and 2,3-AANE respectively). These large nano molecular frameworks (DLS 3 & 100 nm, and 3 & 152 nm respectively) contains
Daisuke Ando et al.
Journal of agricultural and food chemistry, 66(39), 10154-10162 (2018-09-13)
The metabolic fate of a new fungicide, mandestrobin, labeled with 14C at the phenoxy or benzyl ring was examined in wheat after a single spray application at 300 g/ha. Mandestrobin penetrated into foliage over time, with both radiolabels showing similar
Mamilla R Charan Raja et al.
European journal of medicinal chemistry, 139, 503-518 (2017-08-22)
Visceral leishmaniasis (VL) is a life threatening infectious disease caused by Leishmania donovani. It leads to the severe immune suppression in the host defense system. Higher cytotoxicity, rigorous side effects and lower therapeutic indexes (TI) of current antileishmanial drugs have
Yuliu Zhang et al.
Colloids and surfaces. B, Biointerfaces, 188, 110772-110772 (2020-01-31)
This study aimed to develop sheddable polyethylene glycol (PEG) shells with TAT-modified core cross-linked nanomicelles as drug-delivery carriers of doxorubicin (DOX) to establish a programmed response against the tumor microenvironment, enhanced endocytosis, and lysosomal pH-triggered DOX release. First, poly(L-succinimide) (PSI)
Eun-Hye Kim et al.
International journal of molecular sciences, 21(10) (2020-05-28)
Cancer immunotherapy has been revolutionized by the development of monoclonal antibodies (mAbs) that inhibit interactions between immune checkpoint molecules, such as programmed cell-death 1 (PD-1), and its ligand PD-L1. However, mAb-based drugs have some drawbacks, including poor tumor penetration and
Petia Atanasova et al.
Nanomaterials (Basel, Switzerland), 9(5) (2019-05-30)
The robust, anisotropic tobacco mosaic virus (TMV) provides a monodisperse particle size and defined surface chemistry. Owing to these properties, it became an excellent bio-template for the synthesis of diverse nanostructured organic/inorganic functional materials. For selective mineralization of the bio-template
Jorge J Llibre-Guerra et al.
JAMA network open, 2(12), e1917126-e1917126 (2019-12-12)
The amyloid/tau/neurodegeneration (A/T/N) framework uses cerebrospinal fluid (CSF) levels of total tau (tTau) as a marker of neurodegeneration and CSF levels of phosphorylated tau 181 (pTau181) as a marker of tau tangles. However, it is unclear whether CSF levels of
J Miles Blackburn et al.
Organic letters, 19(21), 6012-6015 (2017-10-20)
A general approach to access sulfamate esters through preparation of sulfamic acid salts, subsequent activation with triphenylphosphine ditriflate, and nucleophilic trapping is disclosed. The method proceeds in modest to excellent yields to incorporate nucleophiles derived from aliphatic alcohols and phenols.
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