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关键词:'88652'
显示 1-30 共 42 条结果 关于 "88652" 范围 论文
Weikun Tang et al.
International journal of nanomedicine, 7, 2631-2640 (2012-06-09)
Quantum dots (QDs) have many potential clinical and biological applications because of their advantages over traditional fluorescent dyes. However, the genotoxicity potential of QDs still remains unclear. In this paper, a plasmid-based system was designed to explore the genotoxic mechanism
Zhengqing Liu et al.
Analytica chimica acta, 745, 78-84 (2012-09-04)
A novel fluorescent probe for Cu(2+) determination based on the fluorescence quenching of glyphosate (Glyp)-functionalized quantum dots (QDs) was firstly reported. Glyp had been used to modify the surface of QDs to form Glyp-functionalized QDs following the capping of thioglycolic
Rebecca A Darling et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 307(1), R35-R43 (2014-04-25)
β-mercaptoacetate (MA) is a drug known to block mitochondrial oxidation of medium- and long-chain fatty acids (FAs) and to stimulate feeding. Because MA-induced feeding is vagally dependent, it has been assumed that the feeding response is mediated by MA's antimetabolic
Elham Mohagheghpour et al.
IEEE transactions on nanobioscience, 11(4), 317-323 (2012-12-06)
In this research, we mainly focused on the micro-emulsion synthesis of biotinylated ZnS (zinc sulfide) nanocrystals for avidin recognition. Various samples of Zn(1-x)Mn(x) S, with x = 0.0001, 0.007, 0.02, 0.03, 0.055, 0.09 and 0.13, prepared by quaternary W/O (water-in-oil)
Jun-Ichi Wachino et al.
Antimicrobial agents and chemotherapy, 57(1), 101-109 (2012-10-17)
A novel subclass B3 metallo-β-lactamase (MBL), SMB-1, recently identified from a Serratia marcescens clinical isolate, showed a higher hydrolytic activity against a wide range of β-lactams than did the other subclass B3 MBLs, i.e., BJP-1 and FEZ-1, from environmental bacteria.
Nutthaya Butwong et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 97, 17-23 (2012-06-30)
A hybrid sequential injection-stopped flow injection system was developed for the speciation of arsenic based on the quenching of mercaptoacetic acid capped cadmium sulfide quantum dots (CdS-MAA QDs) fluorescence intensity. The analytical procedure involves the generation of arsine from As(III)
Li-Yun Guan et al.
Analytica chimica acta, 741, 86-92 (2012-07-31)
In this paper, we prepared three types of transferrin-quantum dots conjugates (QDs-Tf) using three different methods (electrostatic interaction, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) coupling, denatured transferrin (dTf) coating). Fluorescence emission spectra, surface characteristics, zeta potentials of quantum dots (QDs) and QDs-Tf fluorescent
Kazuyuki Suzuta et al.
Journal of cosmetic science, 63(3), 177-196 (2012-12-01)
Permanent wave treatment for hair has been used for many decades. However, certain aspects of the treatment involved are still not well understood. Reduction of disulfide (SS) bonds and their subsequent oxidation are essential for inhibiting fiber degradation. We attempted
Branko J Drakulić et al.
Journal of medicinal chemistry, 48(17), 5600-5603 (2005-08-19)
A series of twenty alkyl-, halo-, and methoxy-aryl-substituted 2-[(carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids were synthesized. The new compounds, called CSAB, suppressed proliferation of human cervix carcinoma, HeLa cells, in vitro in a concentration range of 0.644 to 29.48 microM/L. Two compounds exhibit antiproliferative
Valérie A Gérard et al.
Methods in molecular biology (Clifton, N.J.), 906, 275-281 (2012-07-14)
Semiconductor luminescent Quantum Dots (QDs) constitute a growing area of research for biological imaging and other biomedical applications. One of the main challenges is to provide QDs with a biocompatible and easy to functionalize surface while retaining the core optical
Rijun Gui et al.
Analytica chimica acta, 767, 134-140 (2013-03-05)
In this study, thioglycolic acid capped-CdTe quantum dots (QDs) were modified by polyethylenimine (PEI), and then combined with fluorescein isothiocyanate (FITC) to fabricate FITC-CdTe conjugates. The self-assembly of FITC, CdTe and PEI was ascribed to electrostatic interactions in aqueous solution.
Qizhuang Sun et al.
Molecules (Basel, Switzerland), 17(7), 8430-8438 (2012-07-13)
CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity
Joshua S Boateng et al.
Protein and peptide letters, 21(11), 1163-1175 (2014-08-08)
Stable and mucoadhesive, lyophilised, thiolated chitosan xerogels, loaded with insulin for buccal mucosa deliv- ery, in place of the currently used parenteral route have been developed. The xerogels were backed with impervious ethyl- cellulose laminate to ensure unidirectional release and
Mohammed M Rahman
PloS one, 9(6), e100327-e100327 (2014-06-21)
A reusable and mediator-free cholesterol biosensor based on cholesterol oxidase (ChOx) was fabricated based on self-assembled monolayer (SAM) of thioglycolic acid (TGA) (covalent enzyme immobilization by dropping method) using bio-chips. Cholesterol was detected with modified bio-chip (Gold/Thioglycolic-acid/Cholesterol-oxidase i.e., Au/TGA/ChOx) by
Michelle D Regulacio et al.
Nanoscale, 5(6), 2322-2327 (2013-02-09)
Highly emissive and air-stable AgInS2-ZnS quantum dots (ZAIS QDs) with quantum yields of up to 20% have been successfully synthesized directly in aqueous media in the presence of polyacrylic acid (PAA) and mercaptoacetic acid (MAA) as stabilizing and reactivity-controlling agents.
Mercaptoacetic acid-capped silver nanoparticles colloid: formation, morphology, and SERS activity.
Li, Xiaoling, et al.
Langmuir, 19.10, 4285-4290 (2003)
S Banerjee
Talanta, 33(4), 360-362 (1986-04-01)
A sensitive spectrophotometric method for the determination of titanium by formation of its complex with tannin and thioglycollic acid at pH 4 has been developed. The intense yellow colour is measured at 400 nm and the system obeys Beer's law
Zhenzhen Chen et al.
Biosensors & bioelectronics, 44, 204-209 (2013-02-23)
A novel turn-on and turn-off sensor based on the fluorescence change of quantum dots (QDs) has been developed to detect the activity of butyrylcholinesterase (BChE). In the turn-on sensing system, we realized the detection of BChE with just one enzyme.
Benjamin Bondue et al.
PloS one, 7(6), e40043-e40043 (2012-07-07)
Macrophages constitute a major component of innate immunity and play an essential role in defense mechanisms against external aggressions and in inflammatory responses. Chemerin, a chemoattractant protein, is generated in inflammatory conditions, and recruits cells expressing the G protein-coupled receptor
A. Diamantatos
Analytica Chimica Acta, 61, 233-233 (1972)
Daisuke Oikawa et al.
Journal of occupational health, 54(5), 370-375 (2012-07-13)
Among the many chemicals used in a hair salon, exposure to thioglycolic acid (TGA) used for permanent waving solutions (PWS) potentially causes adverse health effects. However, no report has been previously published on the indoor air concentrations of TGA in
K Gradauer et al.
Journal of controlled release : official journal of the Controlled Release Society, 165(3), 207-215 (2012-12-12)
An ideal oral drug carrier should facilitate drug delivery to the gastrointestinal tract and its absorption into the systemic circulation. To meet these requirements, we developed a thiomer-coated liposomal delivery system composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and a maleimide-functionalized lipid, to
Seung Ho Jung et al.
Cytokine, 61(2), 459-468 (2012-12-19)
Inflammatory bowel diseases (IBDs) are chronic inflammatory disorders of the gastrointestinal tract that affect more than 3 million people worldwide, but the pathological etiology is still unknown. The overall purpose of our investigations was to elucidate the possibility of pathological
S.P. Rao et al.
Indian J. Chem. A, 20, 639-639 (1981)
Kerstin Gradauer et al.
International journal of nanomedicine, 7, 2523-2534 (2012-06-09)
To develop mucoadhesive liposomes by anchoring the polymer chitosan-thioglycolic acid (chitosan-TGA) to the liposomal surface to target intestinal mucosal membranes. Liposomes consisting of phosphatidylcholine (POPC) and a maleimide-functionalized lipid were incubated with chitosan-TGA, leading to the formation of a thioether
Flavio Dolores Martínez-Mancera et al.
Clinica chimica acta; international journal of clinical chemistry, 444, 199-205 (2015-02-18)
The ELISA format for measuring carcinoembryonic antigen (CEA) serves as a reference standard against which other assays are compared. Because the World Health Organization (WHO) increasingly recommends the use of serum CEA as a diagnostic tool for cancer, it is
Feng Jiang et al.
Langmuir : the ACS journal of surfaces and colloids, 28(36), 12931-12940 (2012-08-14)
A strong ligand effect was observed for the aqueous-phase growth of ZnSe quantum dots (QDs) in the Ostwald ripening (OR) stage. The QDs were made by injecting Se monomer at room temperature followed by a ramp to 100 °C. The
Jinqing Hong et al.
Talanta, 99, 939-943 (2012-09-13)
We report a conjugate of thioglycolic acid (TGA) capped CdTe quantum dot and Eu(3+) ion (TGA-CdTe QD-Eu(3+)) that can be used as an ultrasensitive luminescence turn-on sensor for nucleoside triphosphates (NTPs). The TGA-CdTe QD-Eu(3+) conjugate is a weakly luminescent species
Mauricio Arenas-Salinas et al.
Biochimie, 106, 39-47 (2014-08-01)
Ferritins are ubiquitous iron-storage proteins found in all kingdoms of life. They share a common architecture made of 24 subunits of five α-helices. The recombinant Chlorobium tepidum ferritin (rCtFtn) is a structurally interesting protein since sequence alignments with other ferritins
Hayreddin Gezegen et al.
Acta poloniae pharmaceutica, 69(5), 893-900 (2012-10-16)
A series of novel 2-(3-oxo-1,3-diarylpropylthio)acetic acid derivatives (3a-l) were prepared by base catalyzed addition of thioglycolic acid to chalcones (1a-l). The antibacterial activities of synthesized compounds were screened against human pathogenic microorganisms by employing the disk-diffusion technique. For the active
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