175064

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Nitric oxide-induced S-glutathionylation and inactivation of glyceraldehyde-3-phosphate dehydrogenase.

S Mohr et al.

The Journal of biological chemistry, 274(14), 9427-9430 (1999-03-27)

S-Nitrosylation of protein thiol groups by nitric oxide (NO) is a widely recognized protein modification. In this study we show that nitrosonium tetrafluoroborate (BF4NO), a NO+ donor, modified the thiol groups of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) by S-nitrosylation and caused enzyme

Stable colloids in molten inorganic salts.

Hao Zhang et al.

Nature, 542(7641), 328-331 (2017-02-17)

A colloidal solution is a homogeneous dispersion of particles or droplets of one phase (solute) in a second, typically liquid, phase (solvent). Colloids are ubiquitous in biological, chemical and technological processes, homogenizing highly dissimilar constituents. To stabilize a colloidal system

Electronically regulated thermally and light-gated electron transfer from anions to naphthalenediimides.

Guha, Samit et al.

Journal of the American Chemical Society, 133(39), 15256-15259 (2011)

Background-Free Chromatographic Detection of Sepsis Biomarker in Clinical Human Serum through Near-Infrared to Near-Infrared Upconversion Immunolabeling.

Tianxing Ji et al.

ACS nano (2020-12-10)

Luminescence nanomaterial-based lateral flow assay (LFA) is promising for point-of-care tests. However, the detection sensitivity and accuracy are often affected by the interferences of autofluorescence and photon scattering from nitrocellulose membrane and colored plasma. Here, we describe a near-infrared to

Mechanism of covalent modification of glyceraldehyde-3-phosphate dehydrogenase at its active site thiol by nitric oxide, peroxynitrite and related nitrosating agents.

S Mohr et al.

FEBS letters, 348(3), 223-227 (1994-07-18)

Previous studies have suggested that glyceraldehyde-3-phosphate dehydrogenase (GAPDH) undergoes covalent modification of an active site thiol by a NO.-induced [32P]NAD(+)-dependent mechanism. However, the efficacy of GAPDH modification induced by various NO donors was found to be independent of spontaneous rates

Nitric oxide reversibly inhibits seven members of the caspase family via S-nitrosylation.

J Li et al.

Biochemical and biophysical research communications, 240(2), 419-424 (1997-12-06)

The caspases are a family of at least 10 human cysteine proteases that participate in cytokine maturation and in apoptotic signal transduction and execution mechanisms. Peptidic inhibitors of these enzymes are capable of blocking cytokine maturation and apoptosis, demonstrating their

Excitation power dependent population pathways and absolute quantum yields of upconversion nanoparticles in different solvents.

C Würth et al.

Nanoscale, 9(12), 4283-4294 (2017-03-16)

The rational design of brighter upconversion nanoparticles (UCNPs) requires a better understanding of the radiationless deactivation pathways in these materials. Here, we demonstrate the potential of excitation power density (P)-dependent studies of upconversion (UC) luminescence intensities, slope factors, and absolute

Er3+-to-dye energy transfer in DNA-coated core and core/shell/shell upconverting nanoparticles with 980 nm and 808 nm excitation of Yb3+ and Nd3.

Laura Francés-Soriano et al.

The Analyst, 145(7), 2543-2553 (2020-02-12)

The capability of upconverting nanoparticles (UCNPs) to convert near infrared (NIR) into visible light has become an important feature for biosensing, imaging, therapy, and their combination. While significant achievements have been accomplished during the last decade developing nanohybrids based on

Deep-penetrating photodynamic therapy with KillerRed mediated by upconversion nanoparticles.

Liuen Liang et al.

Acta biomaterialia, 51, 461-470 (2017-01-09)

The fluorescent protein KillerRed, a new type of biological photosensitizer, is considered as a promising substitute for current synthetic photosensitizes used in photodynamic therapy (PDT). However, broad application of this photosensitiser in treating deep-seated lesions is challenging due to the

Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell.

Fraser G L Parlane et al.

Nature communications, 8(1), 1761-1761 (2017-11-28)

The interactions between a surface-adsorbed dye and a soluble redox-active electrolyte species in the dye-sensitized solar cell has a significant impact on the rate of regeneration of photo-oxidized dye molecules and open-circuit voltage of the device. Dyes must therefore be

Nitrosonium Tetrafluoroborate.

eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)

Assessing the protective effects of different surface coatings on NaYF4:Yb3+, Er3+ upconverting nanoparticles in buffer and DMEM.

Maysoon I Saleh et al.

Scientific reports, 10(1), 19318-19318 (2020-11-11)

We studied the dissolution behavior of β NaYF4:Yb(20%), Er(2%) UCNP of two different sizes in biologically relevant media i.e., water (neutral pH), phosphate buffered saline (PBS), and Dulbecco's modified Eagle medium (DMEM) at different temperatures and particle concentrations. Special emphasis

Sensitive detection of sulfide ions in red region based on luminescence resonance energy transfer between upconversion nanoparticles and dye-670.

Xueping Yang et al.

Luminescence : the journal of biological and chemical luminescence, 36(1), 110-116 (2020-07-30)

Many sulfides are toxic substances that easily harm the respiratory tract, therefore affecting respiratory function or damaging other organs of the body, leading to its failure. Therefore, there is a pressing need to develop methods for sensitive detection of sulfur

A generalized ligand-exchange strategy enabling sequential surface functionalization of colloidal nanocrystals.

Angang Dong et al.

Journal of the American Chemical Society, 133(4), 998-1006 (2010-12-24)

The ability to engineer surface properties of nanocrystals (NCs) is important for various applications, as many of the physical and chemical properties of nanoscale materials are strongly affected by the surface chemistry. Here, we report a facile ligand-exchange approach, which

Increasing the Collision Rate of Particle Impact Electroanalysis with Magnetically Guided Pt-Decorated Iron Oxide Nanoparticles.

Donald A Robinson et al.

ACS nano, 9(7), 7583-7595 (2015-07-15)

An integrated microfluidic/magnetophoretic methodology was developed for improving signal response time and detection limits for the chronoamperometric observation of discrete nanoparticle/electrode interactions by electrocatalytic amplification. The strategy relied on Pt-decorated iron oxide nanoparticles which exhibit both superparamagnetism and electrocatalytic activity

Azodesilylierung?eine neue aprotische Diazotierungstechnik.

Weiss

Chemische Berichte, 117(5), 1965-1972 (1984)

Luminescence imaging-guided triple-collaboratively enhanced photodynamic therapy by bioresponsive lanthanide-based nanomedicine.

Shuang Wang et al.

Nanomedicine : nanotechnology, biology, and medicine, 29, 102265-102265 (2020-07-16)

Photodynamic therapy (PDT) provides a novel sight for non-invasive tumor ablation, which, however, is still limited by low converting efficiency and short life-time of produced singlet oxygen. In this work, a bioresponsive lanthanide-based nanomedicine, FeOOH-coated and toluidine blue (TB)-loaded NaLuF4:Yb,Er,Tm@NaLuF4

Synthesis and Dual-Mode Electrochromism of Anisotropic Monoclinic Nb12O29 Colloidal Nanoplatelets.

Hsin-Che Lu et al.

ACS nano, 14(8), 10068-10082 (2020-08-19)

Transition metal oxide nanocrystals with dual-mode electrochromism hold promise for smart windows enabling spectrally selective solar modulation. We have developed the colloidal synthesis of anisotropic monoclinic Nb12O29 nanoplatelets (NPLs) to investigate the dual-mode electrochromism of niobium oxide nanocrystals. The precursor

Uptake of Polyelectrolyte Functionalized Upconversion Nanoparticles by Tau-Aggregated Neuron Cells.

Yo Han Song et al.

Pharmaceutics, 13(1) (2021-01-21)

Tauopathy is the aggregation phenomenon of tau proteins and associated with neurodegenerative diseases. It metastasizes via the transfer of tau aggregates to adjacent neuron cells; however, the mechanism has not yet been fully understood. Moreover, if the materials used for

Upconversion nanoparticles as intracellular pH messengers.

Evaline S Tsai et al.

Analytical and bioanalytical chemistry, 412(24), 6567-6581 (2020-07-03)

Upconversion nanoparticles (UCNPs) should be particularly well suited for measurement inside cells because they can be imaged down to submicrometer dimensions in near real time using fluorescence microscopy, and they overcome problems, such as photobleaching, autofluorescence, and deep tissue penetration

Design and validation of a new ratiometric intracellular pH imaging probe using lanthanide-doped upconverting nanoparticles.

Shuoren Du et al.

Dalton transactions (Cambridge, England : 2003), 46(40), 13957-13965 (2017-10-04)

pH homeostasis is strictly controlled at a subcellular level. A deregulation of the intra/extra/subcellular pH environment is associated with a number of diseases and as such, the monitoring of the pH state of cells and tissues is a valuable diagnostic

Dye-sensitized core-shell NaGdF4:Yb,Er@NaGdF4:Yb,Nd upconversion nanoprobe for determination of H2S.

Hongqi Chen et al.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 248, 119281-119281 (2020-12-15)

The core-shell NaGdF4:Yb,Er@NaGdF4:Yb,Nd upconversion nanoparticles (UCNPs) were successfully obtained with the method of co-precipitation, and the water-solubility of UCNPs was improved by the ligand exchange reaction between nitrosyl tetrafluoroborate (NOBF4) and nanoparticles. The IR-783 dye with negative charge and NOBF4-UCNPs

Nitrosation of aryl and heteroaryltrifluoroborates with nitrosonium tetrafluoroborate.

Gary A Molander et al.

The Journal of organic chemistry, 77(9), 4402-4413 (2012-04-25)

Organotrifluoroborates have emerged as an alternative to toxic and air- and moisture-sensitive organometallic species for the synthesis of functionalized aryl and heteroaryl compounds. It has been shown that the trifluoroborate moiety can be easily converted into a variety of different

New synthetic reagents and reactions.

Olah, George A

Aldrichimica Acta, 12, number=(3), 43-49 (1979)

Upconversion nanoparticles for sensing pH.

Evaline S Tsai et al.

The Analyst, 144(18), 5547-5557 (2019-08-14)

Upconversion nanoparticles (UCNPs) can provide a vehicle for chemical imaging by coupling chemically sensitive dyes and quenchers. The mechanism for coupling of two anthraquinone dyes, Calcium Red and Alizarin Red S, was investigated as a function of pH. The green

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