Nanoparticle adsorption-induced configurations of liquid crystal droplets

Şengül, Selin
Büküşoğlu, Emre


Nanoparticle adsorption induced configurations of nematic liquid crystal droplets
Sengul, Selin; AYDOĞAN, NİHAL; Büküşoğlu, Emre (2022-02-01)
Nematic liquid crystal (LC) droplets have been widely used for the detection of molecular species. We investigate the response of micrometer sized nematic LC droplets against the adsorption of nanoparticles from aqueous media. We synthesized ti 100 nm-in-diameter silica nanoparticles and modified their sur-faces to mediate either planar or homeotropic LC anchoring and a pH-dependent charge. We show sur -face functionality-and concentration-dependent configurations of the droplets consistent with the change ...
Nanoparticles Based on Plasma Proteins for Drug Delivery Applications
Tezcaner, Ayşen; Keskin, Dilek (2016-01-01)
Background: Nanoparticulate delivery systems receive a lot of attention in pharmaceutical research and market due to their in vivo stability, ability to protect entrapped drug, and ease of cellular penetration. The hemo-compatibility and the clearance half-life are important parameters of the nanodelivery systems that will be administered through intravenous route. Natural components, like blood plasma proteins are ideal sources of biomaterial for such systems with their long in vivo half-lives. Methods: Th...
Nanoparticle Growth via Concentration Gradients Generated by Enzyme Nanopatterns
de la Rica, Roberto; Bat, Erhan; Herpoldt, Karla L.; Xie, Hai-nan; Bertazzo, Sergio; Maynard, Heather D.; Stevens, Molly M. (Wiley, 2014-06-01)
Biomineralizing organisms can grow nanomaterials with unexpected morphologies in an organic matrix where temporal and vectorial gradients of crystal growth precursors are established. Here, concentration gradients for the crystallization of gold nanoparticles are generated and applied on silicon substrates. Gradients of crystal growth precursors are generated by enzymes patterned as lines that are separated by distances ranging from the micro- to the nanoscale. The concentration of crystallization precursor...
Nanoparticle Formation Kinetics and Mechanistic Studies Important to Mechanism-Based Particle-Size Control: Evidence for Ligand-Based Slowing of the Autocatalytic Surface Growth Step Plus Postulated Mechanisms
Özkar, Saim (American Chemical Society (ACS), 2019-06-06)
Ligands are known to affect the formation, stabilization, size, and size-dispersion control of transition-metal and other nanoparticles, yet the kinetic and mechanistic basis for such ligand effects remains to be elucidated and then coupled to predictions for improved particle size and narrower particle size distribution syntheses. Toward this broad goal, the effect of the added excess ligand (L) and the stabilizer, L = POM9- (= the polyoxometalate, P2W15Nb3O629-) is studied for the formation of POM9--stabi...
Nanoscale optical parametric amplification through super-nonlinearity induction
Aşırım, Özüm Emre; Kuzuoğlu, Mustafa (2022-08-01)
Optical parametric amplification (OPA) is a nonlinear process through which a low-power input wave is amplified by extracting energy from an interaction medium that is energized by a high-intensity pump wave. For a significant amplification of an input wave, a sufficiently long interaction medium is required, which is usually on the order of a few centimeters. Therefore, in the small scale, OPA is considered unfeasible, and this prevents it from being employed in micro and nanoscale devices. There have been...
Citation Formats
S. Şengül and E. Büküşoğlu, “Nanoparticle adsorption-induced configurations of liquid crystal droplets,” presented at the ACS Fall 2021, 2021, Accessed: 00, 2022. [Online]. Available: