Luminescent supramolecular hydrogels from a tripeptide and nitrogen-doped carbon nanodots

• Maria C. Cringoli,
• Slavko Kralj,
• Marina Kurbasic,
• Massimo Urban and
• Silvia Marchesan

Beilstein J. Nanotechnol. 2017, 8, 1553–1562, doi:10.3762/bjnano.8.157

• Fmoc solid phase peptide synthesis and purified by RP-HPLC, as previously described [25]. The peptide identity and purity was verified by ESI–MS, 1H NMR and 13C NMR. The as-produced NCNDs were synthesized and purified following a reported procedure [6]. Sample preparation Tripeptide hydrogels were

Deposition of exchange-coupled dinickel complexes on gold substrates utilizing ambidentate mercapto-carboxylato ligands

• Martin Börner,
• Laura Blömer,
• Marcus Kischel,
• Peter Richter,
• Georgeta Salvan,
• Dietrich R. T. Zahn,
• Pablo F. Siles,
• Maria E. N. Fuentes,
• Carlos C. B. Bufon,
• Daniel Grimm,
• Oliver G. Schmidt,
• Daniel Breite,
• Bernd Abel and
• Berthold Kersting

Beilstein J. Nanotechnol. 2017, 8, 1375–1387, doi:10.3762/bjnano.8.139

• . This material was used without further purification in the next step. 1H NMR (300 MHz, DMF-d7) δ 4.00 (s, 1H, SH), 7.40–8.10 (m, 8H, 8 ArH); 13C NMR (75 MHz, DMF-d7) δ 127.02 (C-COOH), 128.28 (C-HS), 130.46 (C1’), 162,24, 162,63, 162,83 (C4), 163,03, 167,64 (COOH); ESI+-MS (MeCN) m/z: 231,05 [M + H

• microcrystalline solid, which was washed with EtOH and ether and dried in vacuum. Yield: 191.1 mg (0.186 mmol, 56%). ESI+-MS (MeCN) m/z: 932.39 [M+]; IR (KBr pellet) : 2962 (s), 2902 (s), 2868 (s), 2808 (m), 2547 (w, ν(SH)), 1717 (w), 1596 (s, νas(RCO2)), 1565 (m), 1546 (w), 1461 (s), 1407 (s, νs(RCO2)), 1363 (m

• solvent system provided the title compound as a green, microcrystalline solid, which was washed with EtOH and ether and dried in vacuum. Yield: 158 mg (0.143 mmol, 66%). ESI+-MS (MeCN) m/z: 1002.5 [M+]; IR (KBr pellet) : 3600–3300 (m), 2962 (s), 2902 (s), 2868 (s), 2808 (m), 2547 (w, ν(SH)), 1717 (w

Mesoporous cerium oxide nanospheres for the visible-light driven photocatalytic degradation of dyes

• Subas K. Muduli,
• Songling Wang,
• Shi Chen,
• Chin Fan Ng,
• Cheng Hon Alfred Huan,
• Tze Chien Sum and
• Han Sen Soo

Beilstein J. Nanotechnol. 2014, 5, 517–523, doi:10.3762/bjnano.5.60

• under visible light and ambient conditions after equilibration, and the activity cannot be accounted to the presence of CeO2 or adsorption alone. Gas chromatography mass spectrometry (GC–MS) and electrospray ionisation mass spectrometry (ESI–MS) were used to identify some of the organic products during

Continuous parallel ESI-MS analysis of reactions carried out in a bespoke 3D printed device

• Jennifer S. Mathieson,
• Mali H. Rosnes,
• Victor Sans,
• Philip J. Kitson and
• Leroy Cronin

Beilstein J. Nanotechnol. 2013, 4, 285–291, doi:10.3762/bjnano.4.31

• using three-dimensional (3D) printing, which can be directly linked to a high-resolution electrospray ionisation mass spectrometer (ESI-MS) for real-time, in-line observations. To highlight the potential of the setup, supramolecular coordination chemistry was carried out in the device, with the product

• of the reactions being recorded continuously and in parallel by ESI-MS. Utilising in-house-programmed computer control, the reactant flow rates and order were carefully controlled and varied, with the changes in the pump inlets being mirrored by the recorded ESI-MS spectra. Keywords: continuous

• parallel analysis; ESI-MS; 3D printing; reactionware; supramolecular chemistry; Introduction Flow chemistry is a growing field that can increase productivity and control, ensure reproducibility and reduce manual handling [1]. There is currently a huge interest in directly interfacing milli- and

Magnetic-Fe/Fe₃O₄-nanoparticle-bound SN38 as carboxylesterase-cleavable prodrug for the delivery to tumors within monocytes/macrophages

• Hongwang Wang,
• Tej B. Shrestha,
• Matthew T. Basel,
• Raj K. Dani,
• Gwi-Moon Seo,
• Sivasai Balivada,
• Marla M. Pyle,
• Heidy Prock,
• Olga B. Koper,
• Prem S. Thapa,
• David Moore,
• Ping Li,
• Viktor Chikan,
• Deryl L. Troyer and
• Stefan H. Bossmann

Beilstein J. Nanotechnol. 2012, 3, 444–455, doi:10.3762/bjnano.3.51

• hydrodynamic light scattering and laser Doppler electrophoresis. The 1H NMR and 13C NMR were obtained on a Varian Unity Plus (400 MHz) NMR spectrometer with deuterated chloroform or DMSO as solvents and TMS as the internal standard. ESI–MS spectra were acquired on an API4000 (Applied Biosystems, Foster City

Direct monitoring of opto-mechanical switching of self-assembled monolayer films containing the azobenzene group

• Einat Tirosh,
• Enrico Benassi,
• Silvio Pipolo,
• Marcel Mayor,
• Michal Valášek,
• Veronica Frydman,
• Stefano Corni and
• Sidney R. Cohen

Beilstein J. Nanotechnol. 2011, 2, 834–844, doi:10.3762/bjnano.2.93

• ); ESI–MS (m/z): [M − 1]+ 365.09. Monolayer preparation Gold substrate preparation: AFM images of the different substrates are shown in Figure 8. Three types of gold substrates were used. For basic characterization of the monolayers (ellipsometry, AFM topography, XPS), a 150 nm gold film was prepared on