Biomimetic preparation of silicon quantum dots and their phytophysiology effect on cucumber seedlings

Abstract

In this study, a biomimetic synthetic strategy was proposed for a facile preparation of red fluorescent silicon quantum dots (SiQDs) using unicellular algae of diatoms as reaction precursor.

Fluorescent carbon-dots enhance light harvesting and photosynthesis by overexpressing PsbP and PsiK genes

“…The peaks at 1158 and 1241 cm −1 are attributed to C–O and C–N stretching vibrations. The absorption band at 1000–1100 cm −1 is attributed to C=S and oxidized S bonds [ 40 , 41 ]. These FT-IR assignments are clearly verified by XPS analysis (Fig.…”

“…The activity of superoxide dismutase (SOD) was determined according to our previous report [ 40 ] by following the photo-reduction of nitroblue tetrazolium (NBT) at 560 nm.…”

“…N. benthamiana seedlings treated with 0.05 mg/mL of NIR-CDs solution were sampled and determined in seven-leaf, ten-leaf, and thirteen-leaf stage, respectively. Net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Cond), and mesophyll intercellular CO 2 (Ci) were measured using LI-6400 portable photosynthesis meter (Li-COR company, USA) according to a reported method [ 40 ]. The total chlorophyll (Chl a + b) contents of N. benthamiana leaves were measured using SPAD (Special Products Analysis Division)-502 ® plus chlorophyll meter (Minolta Camera Co., Osaka, Japan).…”

Influence of FeCl3‐modified chloroaluminate ionic liquids on long‐chain alkenes alkylation

“…[ 24,25 ] Lewis acidic chloroaluminate ILs synthesized by aluminum chloride and triethylamine hydrochloride has also been confirmed to be an excellent catalyst for alkylation. Li et al [ 26 ] synthesized successfully the triethylamine hydrochloride (Et 3 NHCl)‐aluminum chloride (AlCl 3 ) ILs, which showed increased thermal stability, good recyclability, and selectivity. The Friedel–Crafts alkylation of benzene in pyridinium‐based ILs [ 27 ] was also investigated.…”

Synthesis and luminescence properties of CaSnO3:Bi3+ blue phosphor and the emission improvement by Li+ ion

“…As a type of perovskite material, alkaline earth stannates (MSnO 3 , M = Ca, Sr, Ba) have received considerable attention in recent years because of their promising application in a wide range of fields, such as display phosphor matrices, photocatalysts, thermally stable capacitors and anode materials for lithium ion batteries . The luminescence properties of rare earth‐doped alkaline earth stannates have been widely reported, for example, CaSnO 3 :Tb 3+ ,MSnO 3 :Eu 3+ (M = Ca, Sr and Ba), CaSnO 3 :Sm 3+ and CaSnO 3 :Er 3+ ,Bi 3+ phosphors . Here, the luminescence properties of CaSnO 3 :Bi 3+ phosphor and improvements in its emission upon co‐doping with Li + ions are researched and reported.…”