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5.161 Aktuelle Fachpublikationen zum Thema temperature

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Green synthesis of peptide-templated fluorescent copper nanoclusters for temperature sensing and cellular imaging

21.10.2014 | Hong Huang; hua Li; Ai-Jun Wang; Shuxian zhong; Keming Fang; Jiu-Ju Feng, Analyst, 2014

A simple and green approach was developed for preparation of fluorescent Cu nanoclusters (NCs) using artificial peptide CLEDNN as a template. The as-synthesized Cu NCs exhibited high fluorescence quantum yield (7.3%) and good stability, along with excitation and temperature dependent fluorescent ...


ZnS Anisotropic Nanocrystals by One-Pot Low Temperature Synthesis

21.10.2014 | Aude Buffard; Brice Nadal; Hadrien Heuclin; Gilles Patriarche; Beniot Dubertret, New Journal of Chemistry, 2014

We report a simple, low temperature and scalable synthesis performed under air of wurtzite ZnS anisotropic nanocrystals. Reaction between a zinc salt (nitrate or chloride) with thioacetamide and amines at 60°C yields ZnS nanoplatelets or nanowires absorbing in the ultra-violet region with a full ...


Efficient Coupling of Solar Energy to Catalytic Hydrogenation by Using Well‐Designed Palladium Nanostructures

20.10.2014 | Ran Long, Zhoulv Rao, Keke Mao, Yu Li, Chao Zhang, Qiliang Liu, Chengming Wang, Zhi‐Yuan Li, Xiaojun Wu, Yujie Xiong, Angewandte Chemie International Edition, 2014

Abstract A Ru3+‐mediated synthesis for the unique Pd concave nanostructures, which can directly harvest UV‐to‐visible light for styrene hydrogenation, is described. The catalytic efficiency under 100 mW cm−2 full‐spectrum irradiation at room temperature turns out to be comparable to that of ...


Lanthanides and Actinides: Annual Survey of their Organometallic Chemistry Covering the Year 2013

19.10.2014 | Author(s): Frank T. Edelmann, Coordination Chemistry Reviews, 2014

Publication date: Available online 14 October 2014 Source:Coordination Chemistry Reviews Author(s): Frank T. Edelmann This review summarizes the progress in organo-f-element chemistry during the year 2013. The year 2013 witnessed a significant increase of contributions in the fields of ...


Facile Synthesis and Solid‐State Properties of Liquid‐Crystalline Polypeptides Bearing Biphenyl Mesogens and Alkyl Tails

16.10.2014 | Qiulin Yuan, Dan Liu, Yong Deng, Ying Ling, Haoyu Tang, Macromolecular Chemistry and Physics, 2014

A series of liquid‐crystalline 4‐alkyloxybiphenyl‐poly(γ‐propyl‐l‐glutamate) conjugates (PPLGn‐g‐BPCm, n = 10, 54, 110, and 274, m = 4, 6, and 12) with end‐on biphenyl mesogens and variable alkyl tails is synthesized via a facile copper‐mediated alkyne–azide [2+3] 1,3‐dipolar cycloaddition. 1H ...


Unexpected Fluorescence of Polyols and PEGylated Nanoparticles Derived from Carbon Dot Formation

16.10.2014 | Hailong Dong, Marcus Roming, Claus Feldmann, Particle & Particle Systems Characterization, 2014

Synthesis of nanoparticles in high‐boiling alcohols (so‐called polyol synthesis) and surface functionalization of nanoparticles with polyethylene glycol (so‐called PEGylation) in combination with certain heating are often accompanied with an intense fluorescence in the blue to green spectral ...


Stereoblock-like Brush Copolymers Consisting of Poly(l-lactide) and Poly(d-lactide) Side Chains along Poly(norbornene) Backbone: Synthesis, Stereocomplex Formation, and Structure–Property Relationship

16.10.2014 | Takuya Isono; Yohei Kondo; Shun Ozawa; Yougen Chen; Ryosuke Sakai; Shin-ichiro Sato; Kenji Tajima; Toyoji Kakuchi; T ..., Macromolecules, 2014

Random and block copolymerizations of poly(l-lactide) (PLLA) and poly(d-lactide) (PDLA) macromonomers having an exo-norbornene group at the α- or ω-chain end (D/L ratio = 1/1, Mn = ca. 5000 g mol–1) were performed via ring-opening metathesis polymerization to produce the brush random and block ...


Sulfamic acid heterogenized on functionalized magnetic Fe3O4 nanoparticles with diaminoglyoxime as a green, efficient and reusable catalyst for one‐pot synthesis of substituted pyrroles in aqueous phase

15.10.2014 | Hojat Veisi, Pourya Mohammadi, Javad Gholami, Applied Organometallic Chemistry, 2014

Surface functionalization of magnetic nanoparticles is an elegant way to bridge the gap between heterogeneous and homogeneous catalysis. We have conveniently loaded sulfonic acid groups on amino‐functionalized Fe3O4 nanoparticles affording sulfamic acid‐functionalized magnetic Fe3O4 ...


N-doped TiO2 nanotubes coated with a thin TaOxNy layer for photoelectrochemical water splitting: dual bulk and surface modification of photoanodes

15.10.2014 | Hyoung-il Kim; Damián Monllor-Satoca; Wooyul Kim; Wonyong Choi, Energy & Environmental Science, 2014

TaON is a good photoanode material with a suitable band structure for water splitting as well as coupling with TiO2 for efficient charge separation. However, the synthesis of TaON that requires high temperature nitridation (850 °C) limits the combination with other materials. In this work, we ...


Thiol-assisted one-pot synthesis of peptide/protein C-terminal thioacids from peptide/protein hydrazides at neutral conditions

15.10.2014 | chenchen chen; Yi-Chao Huang; ling xu; yong zheng; Hua-Jian Xu; Qingxiang Guo; Changlin Tian; Yiming Li; Jing Shi, Organic & Biomolecular Chemistry, 2014

An efficient thiol-assisted one-pot synthesis of peptide/protein C-terminal thioacids was achieved by using peptide/protein hydrazides precursors at neutral pH and room temperature (about 20 oC). The transformation from hydrazides to thioacids was shown to be efficient for different C-terminal ...


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