Design of surface nanostructures for chirality sensing based on quartz crystal microbalance

• Yinglin Ma,
• Xiangyun Xiao and
• Qingmin Ji

Beilstein J. Nanotechnol. 2022, 13, 1201–1219, doi:10.3762/bjnano.13.100

• molecules·cm−2. The chiral discrimination between R- and S-propranolol can also be achieved. Sönmezler et al. prepared ʟ-histidine-imprinted poly(EGDMA-MAH/Cu(II)) nanoparticles with a size of 86.43 nm to construct QCM sensors (Figure 4) [49]. The thickness measurements demonstrated that the particle films

Understanding nanoparticle flow with a new in vitro experimental and computational approach using hydrogel channels

• Armel Boutchuen,
• Dell Zimmerman,
• Abdollah Arabshahi,
• John Melnyczuk and
• Soubantika Palchoudhury

Beilstein J. Nanotechnol. 2020, 11, 296–309, doi:10.3762/bjnano.11.22

• cross-linking monomer mixture (2-hydroxyethyl methacrylate (HEMA)/1,2-ethanediol dimethacrylate (EGDMA)) under similar reaction conditions. In general, transparency and softness of the gels decreased with increased use of water during the reaction, consistent with other literature reports [40]. Gels

• for further validating the practical applicability of our in vitro NP flow analysis. Experimental Chemicals used Reagents including 2-hydroxyethyl methacrylate (HEMA, Sigma-Aldrich, 97%), 1,2-ethanediol dimethacrylate (EGDMA, Sigma-Aldrich, 98%), ammonium persulfate ((NH4)2S2O8, AmPS, Sigma-Aldrich

• -linking of two hydrophilic monomers, HEMA and EGDMA in a room temperature synthesis. Six different biocompatible pHEMA hydrogels were synthesized in this study by varying the quantity of DI water used during preparation of the hydrogels, keeping all the other parameters constant. In a typical synthesis

Janus-micromotor-based on–off luminescence sensor for active TNT detection

• Ye Yuan,
• Changyong Gao,
• Daolin Wang,
• Chang Zhou,
• Baohua Zhu and
• Qiang He

Beilstein J. Nanotechnol. 2019, 10, 1324–1331, doi:10.3762/bjnano.10.131

• ), Y(NO3)3·6H2O, Er(NO3)3·6H2O, and Yb(NO3)3·6H2O were purchased from Sigma-Aldrich. 2,4,6-Trinitrotoluene (TNT) was purchased from Best-reagent, Chengdu, China. 3-Aminopropyltriethoxysilane (APTES), ethylene glycol dimethacrylate (EGDMA) 2,2’-azobisisobutyronitrile (AIBN), 1-octadecene (ODE, 90%) and

• 10 mL ethanol/chloroform (1:1) solution for 12 h at the room temperature. Then, the as-prepared PAA-UCNPs (80 mg) were added into 20 mL ethanol/acetonitrile (1:1) solution containing APTES (12.5 μL), EGDMA (25 μL), and AIBN (25 mg). After heating to 45 °C for 6 h, the amine-group-functionalized UCNPs

Vapor-phase-synthesized fluoroacrylate polymer thin films: thermal stability and structural properties

• Paul Christian and
• Anna Maria Coclite

Beilstein J. Nanotechnol. 2017, 8, 933–942, doi:10.3762/bjnano.8.95

• . Keywords: EGDMA; iCVD; in situ; PFDA; spectroscopic ellipsometry; temperature dependent; X-ray diffraction; Introduction Fluoropolymers, such as polytetrafluoroethylene, are interesting for a variety of different applications due to their low surface energy. The resultant hydrophobic and oleophobic

• the 1H,1H,2H,2H-perfluorodecyl acrylate polymer (p-PFDA), and in order to enhance its durability, the copolymerization with ethylene glycol dimethacrylate (EGDMA) as a cross-linker is evaluated (the monomers are depicted in Figure 1). EGDMA is a diester with no free hydrophilic groups, which offers

• perfluropolymers (e.g., divinylbenzene (DVB)), EGDMA has a higher conversion rate, which results in a very low percentage of unreacted vinyl bonds after the deposition. It has been demonstrated that only after annealing, the perfluorinated films were strongly cross-linked by DVB resulting in films that showed low

Synthesis of coaxial nanotubes of polyaniline and poly(hydroxyethyl methacrylate) by oxidative/initiated chemical vapor deposition

• Alper Balkan,
• Efe Armagan and
• Gozde Ozaydin Ince

Beilstein J. Nanotechnol. 2017, 8, 872–882, doi:10.3762/bjnano.8.89

• application areas of these sensors can be extended. Experimental The monomers aniline (99.5%, Sigma-Aldrich), HEMA (99%, Sigma Aldrich), the crosslinker ethylene glycol dimethacrylate (98%, Sigma Aldrich) (EGDMA), the initiator tert-butyl peroxide (98%, Sigma Aldrich) (TBPO) and the oxidant antimony

• and then the coated templates were exposed to oxygen plasma to remove excess polymer layer on top of AAO membranes. Subsequently, PANI-coated templates were put inside an iCVD chamber for pHEMA deposition. During iCVD depositions, HEMA and EGDMA were heated up to 70 and 85°C, respectively, and TBPO

• was kept at room temperature. The deposition was performed at 120 mTorr with a stage temperature of 40 °C. The flowrates of HEMA, EGDMA and TBPO were set to 0.8, 0.11 and 1 sccm, respectively. After the deposition, AAO templates coated with PANI and pHEMA were exposed to oxygen plasma (Torr) at 50 W