Streamlined synthesis of potential dual-emissive fluorescent silicon quantum dots (SiQDs) for cell imaging

Sun, Di; Wu, Steven; Martin, Jeremy P.; Tayutivutikul, Kirati; Du, Guodong; Combs, Colin; Darland, Diane C.; Zhao, Julia Xiaojun

doi:10.1039/d3ra03669c

Cited by 1 publication

(2 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SiQDs were synthesized in a modified hydrothermal method in the presence of D-glucose as described in a previous study. 29 Briefly, 0.45 g of D-glucose was dissolved in DI water, then 2 mL of (3-Aminopropyl)triethoxysilane (APTES) was added, and the solution was stirred for 10 min. The mixture was then incubated in an autoclave oven at 200 °C for 8 h. The raw product was then dialyzed against DI water for 24 h, dried, and weighed before subsequent functionalization.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Carboxyl-Engineered Silicon Quantum Dots (CSiQDs) as an Efficient Scale Inhibitor: Formulation Inhibition Mechanism

Ismail,

Alshami,

Tikeri

et al. 2024

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

Multiple recent initiatives have focused on developing environmentally friendly antiscalants/scale inhibitors; however, most of the investigated green antiscalants have demonstrated low scaling ion tolerance and concealed scale inhibitor-mineral crystal interaction. New fluorescent green antiscalants, due to their fluorescence properties, appear to be among the best solutions, since they both solve critical environmental issues and offer insights into the inhibition mechanism. In this work, the surface of synthesized SiQDs was engineered by introducing carboxyl moieties. The functionalized/surface engineered Carboxyl Silicon Quantum Dots (CSiQDs) were characterized in terms of FTIR, XPS, HRTEM, DLS, zeta-potential, and fluorescence properties. The characterization results confirmed successful functional tailoring through the introduction of carboxyl groups while retaining the excitation and emission properties. The performance of the engineered CSiQDs was evaluated, for the first time, using calcium sulfate scale at different brine stresses, temperatures, and pHs. The results revealed the exceptional high efficiency of the CSiQDs, reaching 100% at a 20-ppm dosage in a brine containing 6,600 ppm of calcium and sulfate ions at 70 °C. The calcium sulfate, formed in the gypsum phase, scale inhibition mechanism was investigated using fluorescence images and morphology analysis by means of XRD and SEM in the presence and absence of CSiQDs. The inhibitor is believed to affect gypsum crystal nucleation and growth. This work may lay a foundation for the rational design of next-generation nanophotonic antiscalants.

show abstract

Section: Methodsmentioning

confidence: 99%

“…SiQDs were synthesized in a modified hydrothermal method in the presence of d -glucose as described in a previous study . Briefly, 0.45 g of d -glucose was dissolved in DI water, then 2 mL of (3-Aminopropyl)triethoxysilane (APTES) was added, and the solution was stirred for 10 min.…”

Section: Methodsmentioning

confidence: 99%

Carboxyl-Engineered Silicon Quantum Dots (CSiQDs) as an Efficient Scale Inhibitor: Formulation Inhibition Mechanism

Ismail,

Alshami,

Tikeri

et al. 2024

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

Streamlined synthesis of potential dual-emissive fluorescent silicon quantum dots (SiQDs) for cell imaging

Abstract: One of the current challenges of working with nanomaterials in bioapplications is having a tool that is biocompatible (non-toxic) and produces stable, intense fluorescence for bioimaging.

Cited by 1 publication

References 60 publications

Carboxyl-Engineered Silicon Quantum Dots (CSiQDs) as an Efficient Scale Inhibitor: Formulation Inhibition Mechanism

Carboxyl-Engineered Silicon Quantum Dots (CSiQDs) as an Efficient Scale Inhibitor: Formulation Inhibition Mechanism

Contact Info

Product

Resources

About