Results 141 to 150 of about 49,559 (307)

Investigation of the laser fluence and wavelength dependence in surface‐assisted laser desorption/ionization mass spectrometry using gold nanoparticles

Rapid Communications in Mass Spectrometry, EarlyView.
Rationale Surface‐assisted laser desorption/ionization (SALDI) mass spectrometry (MS) builds on the use of nanostructured surfaces (e.g., coatings of colloidal nanoparticles) to promote analyte desorption and ionization. The SALDI process is believed to occur mainly through thermal processes, resulting from heating of the nanosubstrate upon absorption ...
Wendy H. Müller, Alexander Potthoff, Klaus Dreisewerd, Jens Soltwisch   +3 more
wiley   +1 more source

Isotope effects in the photolysis of formaldehyde

, 2008
In the photolysis of atmospheric hydrocarbons, the photolysis of formaldehyde is a key step. The photolysis proceeds via two channels, often referred to as the radical channel (1) and the molecular channel (2). (1) HCHO + hv (λ < 340 nm) → H + HCO; (2)
Röckmann, Thomas, Johnson, Matthew S., Skov, Henrik, Andersen, Vibeke Friis, Nilsson, Elna J.K., Walter, Sylvia   +5 more
core  

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

Responsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun, Meiqi Li, Di Nan, Jiaqi Zhao, Yu Chen, Yao Gao, Shichen Zhang, Kirsten L. Van Landuyt, Manlin Qi   +8 more
wiley   +1 more source

Peptide‐based antibacterial nanoplatforms: Design principles, stimuli‐regulated behaviors, and applications

Responsive Materials, EarlyView.
Peptide‐based antibacterial nanoplatforms, encompassing self‐assembled peptides and peptide‐engineered inorganic, polymeric, and lipid nanocarriers, are systematically reviewed. The article highlights design principles and stimuli‐responsive regulation for improving peptide stability, delivery efficiency, and antibacterial performance.
Peng Tan, Chenlong Zhou, Shuaikang Yang, Zhenduo Chen, Guanghui Zhao, Qi Tang, Haoyu Yan, Feng Li, Xi Ma   +8 more
wiley   +1 more source

Efficient water‐soluble blue/red‐emissive carbon dots matching plant absorption spectra: Synthesis, tunable control, and their applications in promoting plant growth

Responsive Materials, EarlyView.
Guided by the spectral demand of plant photosystems, this review summarizes the synthesis, emission regulation, dual‐emission design, and gram‐scale production of CDs for agricultural applications. Spectrally matched blue‐ and red‐emissive CDs enhance plant light utilization by converting underutilized light into photosynthetically active radiation and
Yijing Chen, Ziyue Mu, Haoran Zhang, Xuejie Zhang, Wei Li, Bingfu Lei   +5 more
wiley   +1 more source

Studies on photolysis kinetics of combretastatin A4 phosphate solution

, 2007
OBJECTIVE: To study photolysis kinetics of combretastatin A4 phosphate solution. METHODS: CA4P solution was exposed to different light. Samples were determined by HPLC.
Mo, Y, He, Y-J, Yan, G-Q, Lin, L-Y, Chen, Y   +4 more
core  

Influence of Temperature on the Reliability of Graphene‐Based Ozone Sensors

Small, EarlyView.
The reliability and stability of inkjet‐printed graphene flake sensors are evaluated. Stress assessments take place in ozone‐rich environments and at elevated temperatures, with the observation of a change in resistance. Surface‐sensitive techniques serve to investigate the failure and degradation mechanisms of printed graphene.
Archa Jain, Kathrin Ganzhorn, Aleksandr Baklanov, Tim Schaffus, Werner Breuer, Jasper Ruhkopf, Janio Venturini, Sebastian Troll, Annalisa Cappellani, Max C. Lemme   +9 more
wiley   +1 more source

A review of new methods of removing environmental pollutants: Photolysis and UV/H2O2 processes

آلودگی‌های محیطی و توسعه پایدار شهری
Organic contaminants, such as dye pollutants, pharmaceutical compounds, pesticides, etc. are increasingly found in water sources, and therefore need to be controlled by modern water treatment technologies.
Hamed Eskandarloo
doaj  

A novel sulfur‐containing photoinitiator based on benzophenone derivatives for rapid photopolymerization

Smart Molecules, EarlyView.
This study develops a series of unimolecular photoinitiators, BP‐S1‐5, by incorporating hydrogen‐donating groups into a benzophenone framework. This method reduces the reliance on co‐initiators, and enables BP‐S1‐5 with efficient photoinitiation and excellent molding capability.
Yu Li, Wenzheng Li, Saihe Yang, Lu Li, Shikun Song, Yuting Tang, Han Han, Zhenyue Duan, Yangyang Xin, Jiangli Fan, Pengzhong Chen, Xiaojun Peng   +11 more
wiley   +1 more source

Surface Mediated Photolysis of p-Nitrobenzoic Acid at 633nm

, 2001
Surface Enhanced Raman Scattering (SERS) was used to probe the photolysis of p-nitrobenzoic acid (PNBA) on silver surfaces. PNBA does not photolyze in the visible spectrum unless it is adsorbed to a SERS active surface, such as Au or Ag.
Mirkovic, Jelena
core