Magnetic-mesoporous Janus nanoparticles

Abstract

Novel multifunctional magnetic-mesoporous Janus particles with controlled aspect ratio were developed by a simple one-step synthesis approach. Due to their superior magnetic properties and well-defined pore structures, these particles will be important in drug delivery, molecule targeting, cellular imaging, and as building blocks for the assembly of complex nanostructures.

Magnetic interaction of Janus magnetic particles suspended in a viscous fluid

“…Janus magnetic particles, meanwhile, form chiral chains, staggered chains, or doubled chain-like structures as well as linear chain structures, depending on their internal structure [9,[18][19][20][21][22][23]. In the presence of a rotating magnetic field, magnetic Janus colloids are found to form unusual crystal structures [24].…”

Quantum size effect of poly(o-phenylenediamine) quantum dots: From controllable fabrication to tunable photoluminescence properties

“…Sun et al synthesized various CPs nano-particles such as PANI, poly(o-phenylenediamine), Ag@poly (m-phenylenediamine), poly(m-phenylenediamine), poly(p-phenylenediamine) and polynaphthylamine which were applied in the fluorescence detection of nucleic acid [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. The results showed that these nano-particles can absorb and quench dye-labeled single-stranded DNA (ssDNA) very effectively.…”

“…On the other hand, conducting polymers (CPs) such as: polyaniline (PANI), polythiophene (PTH), polyparaphenylene (PPP) and polypyridine (PPY) are widely used in fluorescent probes [27][28][29][30][31], adsorbents [32][33][34][35][36][37][38][39][40][41][42][43], electrode materials [44][45][46][47] and photocatalysis [48][49][50][51][52][53]. Sun et al synthesized various CPs nano-particles such as PANI, poly(o-phenylenediamine), Ag@poly (m-phenylenediamine), poly(m-phenylenediamine), poly(p-phenylenediamine) and polynaphthylamine which were applied in the fluorescence detection of nucleic acid [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58].…”

Janus Nanostructures and Their Bio-medical Applications

“…18 Besides, ligands are also used to bridge the two distinct parts to form a Janus structure. 19 To produce Janus nanoparticles with single material phase but two different surface properties, Pickering emulsion was developed by Granick and coworkers. 11,20 Nanoparticles can be adsorbed onto the surface of droplets to stabilize an emulsion, namely, Pickering emulsion.…”