A One Pot, One Step Method for the Preparation of Clickable Hydrogels by Photoinitiated Polymerization

2011 ◽  
Vol 32 (23) ◽  
pp. 1906-1909 ◽  
Author(s):  
Gorkem Yilmaz ◽  
Muhammet U. Kahveci ◽  
Yusuf Yagci
Keyword(s):  
Step Method ◽  
One Pot ◽  
Photoinitiated Polymerization ◽  
One Step

One-Pot Synthesis of Carbon Dots-Based Förster Resonance Energy Transfer Material and its Application in Fe3+ Detection

2017 ◽  
Vol 45 ◽  
pp. 134-141 ◽  
Author(s):  
Yong Qiang Dang ◽  
Yu Jing Zhou ◽  
Jiang Tao Cai ◽  
Guo Yang Liu ◽  
Ya Ting Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Carbon Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Maximum Efficiency ◽  
Step Method ◽  
One Pot ◽  
Excitation Time ◽  
One Step ◽  
Fret Efficiency

In this work, an efficient Förster resonance energy transfer (FRET) system has been prepared using carbon dots (CDs). A one-step method has been developed using β-cyclodextrin and tryptophan to synthesize the novel CT-CDs with FRET properties. The FRET was found to occur within the CT-CDs from the tryptophan moiety to the CDs. The FRET efficiency of the system increased with excitation time, reaching a maximum efficiency after 120 min. The CT-CDs were then evaluated in Fe3+ detection application, and showed selective and sensitive detection of Fe3+ over 14 other metal ions.

scholarly journals One-pot one-step synthesis of Au@SiO2 core–shell nanoparticles and their shell-thickness-dependent fluorescent properties

RSC Advances ◽  
2019 ◽  
Vol 9 (31) ◽  
pp. 17674-17678 ◽  
Author(s):  
Shan Zhang ◽  
Xiaochuan Xu ◽  
Guoyu Zhang ◽  
Bin Liu ◽  
Jianhui Yang
Keyword(s):  
Shell Thickness ◽  
Silica Shell ◽  
Core Shell ◽  
Core Size ◽  
Fluorescent Properties ◽  
Step Method ◽  
Shell Nanoparticles ◽  
One Pot ◽  
One Step ◽  
Core Shell Nanoparticles

Au@SiO2 core–shell nanoparticles with tunable Au core size and silica shell thickness were prepared by a facile one-pot one-step method.

Synergistic Interaction Between ATRP and RAFT: Taking the Best of Each World

2009 ◽  
Vol 62 (11) ◽  
pp. 1384 ◽  
Author(s):  
Yungwan Kwak ◽  
Renaud Nicolaÿ ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Chain Transfer ◽  
Raft Polymerization ◽  
Atom Transfer ◽  
Step Method ◽  
One Pot ◽  
Reversible Addition ◽  
Raft Agent ◽  
Recent Developments ◽  
One Step ◽  
Leaving Groups

This review covers recent developments on the combination of atom transfer radical polymerization (ATRP) and reversible addition–fragmentation chain transfer (RAFT) polymerization to produce well controlled (co)polymers. This review discusses the relative reactivity of the R group in ATRP and RAFT, provides a comparison of dithiocarbamate (DC), trithiocarbonate (TTC), dithioester (DTE), and xanthate versus bromine or chlorine, and an optimization of catalyst/ligand selection. The level of control in iniferter polymerization with DC was greatly improved by the addition of a copper complex. New TTC inifers with bromopropionate and bromoisobutyrate groups have been prepared to conduct, concurrently or sequentially, ATRP from Br-end groups, ATRP from the TTC moiety, and RAFT polymerization from the TTC moiety, depending on the combination of monomer and catalyst employed in the reaction. The use of concurrent ATRP/RAFT (or copper-catalyzed RAFT polymerization or ATRP with dithioester leaving groups), resulted in improved control over the synthesis of homo- and block (co)polymers and allowed preparation of well-defined high-molecular-weight polymers exceeding 1 million. Block copolymers that could not be prepared previously have been synthesized by sequential ATRP and RAFT polymerization using a bromoxanthate inifer. A simple, versatile, and one-step method involving atom-transfer radical addition–fragmentation (ATRAF) for the preparation of various chain transfer agents (including DC, DTE, and xanthate) in high purity is discussed and a one-pot, two-step polymerization starting with a RAFT agent synthesized by ATRAF, followed by polymerization, is demonstrated.

One pot synthesis of gold hollow nanospheres with efficient and reusable catalysis

RSC Advances ◽  
2015 ◽  
Vol 5 (72) ◽  
pp. 58522-58527 ◽  
Author(s):  
Qingdong Xia ◽  
Dongyue Su ◽  
Xin Yang ◽  
Fang Chai ◽  
Chungang Wang ◽  
...  
Keyword(s):  
Hollow Nanospheres ◽  
Step Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
One Step

In this paper, gold hollow nanospheres (GHNSs) have been prepared by a one step method using 2-mercaptothiazoline as both a reductant and stabilizer.

Facile one-pot synthesis of Fe3O4@chitosan nanospheres for MRI and fluorescence imaging guided chemo-photothermal combinational cancer therapy

2016 ◽  
Vol 45 (48) ◽  
pp. 19519-19528 ◽  
Author(s):  
Zhifang Gao ◽  
Xijian Liu ◽  
Yeying Wang ◽  
Guoying Deng ◽  
Feng Zhou ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Fluorescence Imaging ◽  
Step Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
One Step

Fe3O4@chitosan nanospheres were fabricated by a facile one-step method for MRI and fluorescence imaging guided chemo-photothermal combinational cancer therapy.

One-pot preparation of boronic acid and PEG bi-functionalized silica particles for separation and purification of catecholamine from rat serum

2015 ◽  
Vol 39 (11) ◽  
pp. 8848-8854 ◽  
Author(s):  
Yan Wang ◽  
Lei Sun ◽  
Bingqing Yu ◽  
Shaotong Li ◽  
Shian Zhong
Keyword(s):  
Protein Adsorption ◽  
Boronic Acid ◽  
Silica Particles ◽  
Functionalized Silica ◽  
Separation And Purification ◽  
Step Method ◽  
One Pot ◽  
Rat Serum ◽  
One Step

A novel boronate absorbent with the ability to resist protein adsorption was synthesized by a one step method.

A Study on the Rearrangement of Dialkyl 1-Aryl-1-hydroxymethylphosphonates to Benzyl Phosphates

2020 ◽  
Vol 24 (4) ◽  
pp. 465-471 ◽  
Author(s):  
Zita Rádai ◽  
Réka Szabó ◽  
Áron Szigetvári ◽  
Nóra Zsuzsa Kiss ◽  
Zoltán Mucsi ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Room Temperature ◽  
Phase Transfer ◽  
One Pot ◽  
Substrate Dependence ◽  
Triethylbenzylammonium Chloride ◽  
One Step ◽  
The Pudovik Reaction ◽  
The One ◽  
Solid Liquid

The phospha-Brook rearrangement of dialkyl 1-aryl-1-hydroxymethylphosphonates (HPs) to the corresponding benzyl phosphates (BPs) has been elaborated under solid-liquid phase transfer catalytic conditions. The best procedure involved the use of triethylbenzylammonium chloride as the catalyst and Cs2CO3 as the base in acetonitrile as the solvent at room temperature. The substrate dependence of the rearrangement has been studied, and the mechanism of the transformation under discussion was explored by quantum chemical calculations. The key intermediate is an oxaphosphirane. The one-pot version starting with the Pudovik reaction has also been developed. The conditions of this tandem transformation were the same, as those for the one-step HP→BP conversion.

Effect of Dynamic Crosslinking on Mechanical Properties of PP/EPDM Blends

1993 ◽  
Vol 58 (11) ◽  
pp. 2642-2650 ◽  
Author(s):  
Zdeněk Kruliš ◽  
Ivan Fortelný ◽  
Josef Kovář
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Shear Modulus ◽  
High Impact ◽  
Necessary Condition ◽  
Step Method ◽  
Melt Mixing ◽  
One Step ◽  
High Impact Strength ◽  
Dynamic Curing

The effect of dynamic curing of PP/EPDM blends with sulfur and thiuram disulfide systems on their mechanical properties was studied. The results were interpreted using the knowledge of the formation of phase structure in the blends during their melt mixing. It was shown, that a sufficiently slow curing reaction is necessary if a high impact strength is to be obtained. Only in such case, a fine and homogeneous dispersion of elastomer can be formed, which is the necessary condition for high impact strength of the blend. Using an inhibitor of curing in the system and a one-step method of dynamic curing leads to an increase in impact strength of blends. From the comparison of shear modulus and impact strength values, it follows that, at the stiffness, the dynamically cured blends have higher impact strength than the uncured ones.

Bismuth particles imbedded degradable nanohydrogel prepared by one-step method for tumor dual-mode imaging and chemo-photothermal combined therapy

2019 ◽  
Vol 375 ◽  
pp. 122000 ◽  
Author(s):  
Yang Xuan ◽  
Xian-Lin Song ◽  
Xiao-Quan Yang ◽  
Ruo-Yun Zhang ◽  
Zi-Yu Song ◽  
...  
Keyword(s):  
Combined Therapy ◽  
Dual Mode ◽  
Step Method ◽  
One Step
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