Results 61 to 70 of about 77,313 (353)

Analytical methods for determination of glutathione and glutathione disulfide in pharmaceuticals and biological fluids

Reviews in Analytical Chemistry, 2020
Glutathione is a natural tripeptide that plays a major role in different physiological processes in the human body. Determination of glutathione in different body fluids and tissues is essential for early diagnosis and follow-up of various diseases.
Hamad Amal, Elshahawy Mohamed, Negm Amr, Mansour Fotouh R.   +3 more
doaj   +1 more source

Three-photon absorption in water-soluble ZnS nanocrystals [PDF]

Appl. Phys. Lett. 88, 181114 (2006), 2006
We report on large three-photon absorption (3PA) in glutathione-capped ZnS semiconductor nanocrystals (NCs), determined by both Z-scan and transient transmission techniques with 120-fs laser pulses. The monodispersed, water-soluble ZnS NCs are synthesized by a modified protocol with a mean diameter of 2.5 nm. Their 3PA cross-section is determined to be
arxiv   +1 more source

Review

, 2020
The chalcogen elements oxygen, sulfur, and selenium are essential constituents of side chain functions of natural amino acids. Conversely, no structural and biological function has been discovered so far for the heavier and more metallic tellurium ...
Moroder, L., Musiol, H.
core   +1 more source

Scattering in Monolayer Molybdenum Disulfide Quantum Dot [PDF]

, 2021
We investigate the propagation of electrons in a circular quantum dot of monolayer Molybdenium disulfide MoS_2, subjected to an electric potential. Using the continuum model, we present analytical expressions for the eigenstates, scattering coefficients, scattering efficiency, and radial component of the reflected current and electron density.
arxiv   +1 more source

The hydrogen peroxide-sensitive proteome of the chloroplast in vitro and in vivo [PDF]

, 2013
Muthuramalingam M, Matros A, Scheibe R, Mock H-P, Dietz K-J. The hydrogen peroxide-sensitive proteome of the chloroplast in vitro and in vivo. Frontiers in Plant Science.
Dietz, Karl-Josef, Matros, Andrea, Mock, Hans-Peter, Muthuramalingam, Meenakumari, Scheibe, Renate   +4 more
core   +3 more sources

The Regulation of Trace Metal Elements in Cancer Ferroptosis

Advanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang, Yuanyuan Xue, Lei Chang, Xuena Zhu, Wenjun Liu, Tingbo Liang   +5 more
wiley   +1 more source

Assessment of thiol-disulfide and glutathione homeostasis after levothyroxine replacement in individuals with autoimmune or nonautoimmune hypothyroidism [PDF]

Archives of Endocrinology and Metabolism
Objective Thyroid hormones are known to affect the biosynthesis and degradation of antioxidant compounds, suggesting a possible link between hypothyroidism and oxidative stress.
Almila Senat, Osman Erinc, Soner Yesilyurt, Gamze Gok, Ozcan Erel   +4 more
doaj   +1 more source

On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters [PDF]

, 2013
Novel pathways of the synthesis of photoluminescent gold quantum clusters (AuQCs) using biomolecules as reactants provide biocompatible products for biological imaging techniques.
A Baksi, A Harriman, A Retnakumari, AM Smith, BĐ Glišić, BĐ Glišić, C Giulivi, CAJ Lin, CAJ Lin, CF Shaw III, CL Liu, CV Durgadas, D Toroz, DM Chevrier, F Wen, G Mező, GA Simms, GS Harms, H Kawasaki, H Kawasaki, H Schmidbaur, H Tsunoyama, H Wei, J Xie, J Xie, JS Mohanty, K Chaudhari, L Shang, L Shang, M Zhu, MAH Muhammed, MAH Muhammed, MS Devadas, PK Xavier, PL Xavier, R Hamouda, S Link, S Si, TH Chen, X Wen, X Yuan, X Yuan, XL Guével, Y Negishi, Y Shichibu, Y Shichibu, Y Wang, YH Lin, YN Tan   +48 more
core   +2 more sources

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

Advanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan, Simona Summonte, Fabrizio Ricci, Matthias Sandmeier, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Folic acid-decorated vitamin E Poly(ethylene glycol) monoplatinum ester with disulfide bond as theranostic nanoparticle for drug resistant tumor diagnosis and treatment

Materials Research Express, 2023
Vitamin E Poly(ethylene glycol) monoplatinum ester (TPGS) nanoparticles have attracted much attention in recent years for overcome multidrug resistance. Herein, a well-defined folic acid (FA)-conjugated and disulfide bond-linked polymer (FA-SS-TPGS) was ...
Zhuoran Li, Huikang Yang, Fan Xu, Xuwen Zeng, Haowei Huang, Xinqing Jiang   +5 more
doaj   +1 more source