Topic
Nanomaterials research, explained
12 open-access nanomaterials studies, each with a flashcard deck and a quiz.
- XPS and SIMS map thioglucose SAMs on gold
Thio-glucose binds gold through Au–S; flat films pack better than citrate AuNPs, and ToF-SIMS sees TG–MBP pocket fragments.
- Stirring time sets GSH-capped silver nanoparticle size
Glutathione reduces AgNO3 at 60 °C; longer stirring grows spherical Ag nanoparticles from about 3 to 6 nm.
- Gamma-made Ag–Se nanoparticles carrying cefotaxime
Radiolytic Ag, Se, and Ag–Se nanoparticles (about 11–21 nm) are characterized and loaded with cefotaxime for synergistic antimicrobial tests.
- NH4OH tunes silica dots from 20 to 500 nm
Varying ammonia in a Stöber synthesis sizes silica nanoparticles from 20 to 200 nm (then 500 nm with extra TEOS), enabling core–shell TAMRA–BHQ2 quenching studies over unusually long distances.
- Microwave phage carbons glow and sense Fe3+
M13 bacteriophage carbonized in a 700 W microwave gives fluorescent nanoparticles (QY 14.8%) that quench with Fe3+ down to an 8.0 μM LOD.
- Glycerol tunes silver nanoparticle size
Silver nitrate reduced in 10–100% glycerol with PVP at room temperature gives plasmonic Ag nanoparticles from ultra-small (~1.8 nm) up to ~160 nm.
- Blackberry-leaf silver nanoparticles against plant pathogens
Rubus fruticosus extract reduces Ag+ to 50–120 nm AgNPs (SPR 449 nm) that fully inhibit two phytopathogens at the highest dose.
- Janus micromotors as tiny nanoparticle factories
Self-propelled Janus particles loaded with Cd2+ or citrate make CdS quantum dots or gold nanoparticles in microliter volumes within 15 minutes.
- Plasmonic SiO2/TiO2 aerogels degrade RhB
Anatase TiO2 grown in silica aerogels, then Ag@Au nanoshells, adsorbs and photocatalyzes rhodamine B far better than TiO2 powder.
- Sputtering Pt onto PEG to make fuel-cell catalysts
Pt sputtered onto liquid PEG, then heat-transferred onto carbon, gives bimodal nanoparticles whose larger population drives ORR activity.
- Many silicatein mutants together make better nanoceria
Evolving silicatein for ceria biomineralization never yielded one champion sequence; mixed truncated mutants and intact catalytic-triad knockouts still mineralize, implying synergistic mosaicism.
- Gold chloride cluster anions grow as zigzag chains
LDI-MS detects Au_nCl_{n+3}– anions whose lowest isomers are zigzag chains starting from AuCl4–, growing exergonically by about 41–44 kcal mol–1.