Exploiting kinetics for assembly of multicomponent nanoparticle networks with programmable control of heterogeneity

2020 ◽  
Vol 56 (3) ◽  
pp. 458-461 ◽  
Author(s):  
Jessica L. Davis ◽  
Karunamuni L. Silva ◽  
Stephanie L. Brock
Keyword(s):  
Chain Length ◽  
Metal Chalcogenide ◽  
Two Component ◽  
Surface Capping ◽  
Capping Ligands

Mixing in two-component metal-chalcogenide nanocrystal gels and aerogels is dictated by the chain-length of surface capping ligands.

Lanthanide cation-induced tuning of surface capping properties in zinc sulfide nanoparticles: an infrared absorption study

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 32920-32932 ◽  
Author(s):  
Ankita Ghatak ◽  
Gouranga H. Debnath ◽  
Madhuri Mandal ◽  
Prasun Mukherjee
Keyword(s):  
Zinc Sulfide ◽  
Infrared Absorption ◽  
Absorption Study ◽  
Lanthanide Cations ◽  
Zinc Sulfide Nanoparticles ◽  
Surface Capping ◽  
Capping Ligands ◽  
Absorption Characteristics

Lanthanide cations tune the infrared absorption characteristics of the capping ligands in Zn(Ln)S [Ln = Sm, Eu, Tb, Dy] nanoparticles.

Design of Water-Soluble Quantum Dots with Novel Surface Ligands for Biological Applications

2003 ◽  
Vol 789 ◽  
Author(s):  
H. Tetsuo Uyeda ◽  
Igor L. Medintz ◽  
Hedi Mattoussi
Keyword(s):  
Aqueous Media ◽  
Extended Period ◽  
Water Soluble ◽  
Coupling Agents ◽  
Biological Applications ◽  
Dihydrolipoic Acid ◽  
Aqueous Dispersions ◽  
Surface Capping ◽  
Capping Ligands ◽  
New Generation

ABSTRACTWe have designed a series of organic oligo- and polyethylene glycol (PEG) based surface capping ligands that allow for QD manipulation in aqueous media. We utilized readily available thioctic acid and various oligo- and polyethylene glycols in simple esterification schemes, followed by reduction of the dithiolane to produce multi-gram quantities of capping substrates. Cap exchange of the native trioctyl-phosphine and -phosphine oxide based ligands with the PEG-terminated dithiol-alkyl cap readily resulted in aqueous dispersions of QDs that were homogeneous and stable in various pH ranges over an extended period of time. Mixed surface capping strategies utilizing ratios of dihydrolipoic acid to the pegylated dihydrolipoic acid were also prepared. We anticipate that such systems should allow one to covalently attach amine containing biomolecules to nanoparticle systems bearing carboxylates, employing known coupling agents, such as (dimethylamino) propyl-3-ethyl-carbodiimide (EDC). This design and conjugation strategy may facilitate the development of a new generation of QD-bioconjugates, which can be directly utilized in bio-related applications such as sensing and cellular imaging.

Two-Component Dendritic Gel:  Effect of Spacer Chain Length on the Supramolecular Chiral Assembly

Langmuir ◽  
2004 ◽  
Vol 20 (17) ◽  
pp. 7070-7077 ◽  
Author(s):  
Andrew R. Hirst ◽  
David K. Smith ◽  
Martin C. Feiters ◽  
Huub P. M. Geurts
Keyword(s):  
Chain Length ◽  
Gel Effect ◽  
Two Component ◽  
Spacer Chain Length

Understanding the Role of Surface Capping Ligands in Passivating the Quantum Dots Using Copper Dopants as Internal Sensor

2016 ◽  
Vol 120 (35) ◽  
pp. 19785-19795 ◽  
Author(s):  
G. Krishnamurthy Grandhi ◽  
Arunkumar M. ◽  
Ranjani Viswanatha
Keyword(s):  
Quantum Dots ◽  
Surface Capping ◽  
Capping Ligands

Quantifying the density of surface capping ligands on semiconductor quantum dots

2015 ◽  
Author(s):  
Naiqian Zhan ◽  
Goutam Palui ◽  
Jan-Philip Merkl ◽  
Hedi Mattoussi
Keyword(s):  
Quantum Dots ◽  
Semiconductor Quantum Dots ◽  
Surface Capping ◽  
Capping Ligands

Diorganyl Dichalcogenides as Surface Capping Ligands for Germanium Nanocrystals

2020 ◽  
Vol 39 (7) ◽  
pp. 995-1005
Author(s):  
Kathryn A. Newton ◽  
Zheng Ju ◽  
Katayoon Tabatabaei ◽  
Susan M. Kauzlarich
Keyword(s):  
Germanium Nanocrystals ◽  
Surface Capping ◽  
Capping Ligands
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