A reversible fluorescent pH-sensing system based on the one-pot synthesis of natural silk fibroin-capped copper nanoclusters

2016 ◽  
Vol 4 (16) ◽  
pp. 3540-3545 ◽  
Author(s):  
Guomei Zhang ◽  
Ting Xu ◽  
Huizhi Du ◽  
Yunyun Qiao ◽  
Xiaohong Guo ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Silk Fibroin ◽  
Water Soluble ◽  
Ph Sensing ◽  
Ph Responsive ◽  
Copper Nanoclusters ◽  
One Pot ◽  
Natural Silk ◽  
Sensing System ◽  
The One

A one-pot “green” synthesis of water soluble and pH-responsive natural silk fibroin (SF)-stabilized fluorescent copper nanoclusters (CuNCs) was reported without using any additional reducing agents.

scholarly journals One-pot green synthesis of antimicrobial chitosan derivative nanocomposites to control foodborne pathogens

RSC Advances ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 1095-1104
Author(s):  
Mahmoud H. Abu Elella ◽  
Ahmed Esmail Shalan ◽  
Magdy W. Sabaa ◽  
Riham R. Mohamed
Keyword(s):  
Green Synthesis ◽  
Silver Nitrate ◽  
Foodborne Pathogens ◽  
Antimicrobial Agents ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
One Pot ◽  
The One

This study aimed to show the efficacy of the one-pot green biosynthesis of nanocomposites as effective antimicrobial agents based on a water-soluble biodegradable polysaccharide and silver nitrate (AgNO3).

One-step prepared fluorescent copper nanoclusters for reversible pH-sensing

The Analyst ◽  
2014 ◽  
Vol 139 (12) ◽  
pp. 2990-2993 ◽  
Author(s):  
Wei Wang ◽  
Fei Leng ◽  
Lei Zhan ◽  
Yong Chang ◽  
Xiao Xi Yang ◽  
...  
Keyword(s):  
Reducing Agents ◽  
Water Soluble ◽  
Ph Sensing ◽  
Ph Responsive ◽  
Copper Nanoclusters ◽  
One Step

A one-step synthesis of water soluble and pH-responsive trypsin-stabilized fluorescent CuNCs was reported without using additional protective or reducing agents.

scholarly journals A Water-Soluble Copper-Immobilized Covalent Organic Framework Functioning as an “OFF–ON” Fluorescent Sensor for Amino Acids

2021 ◽  
Author(s):  
Lamiaa Reda Ahmed ◽  
Ahmed F. M. EL-Mahdy ◽  
Cheng-Tang Pan ◽  
Shiao-Wei Kuo
Keyword(s):  
Amino Acids ◽  
Fluorescent Sensor ◽  
Water Soluble ◽  
One Pot ◽  
Covalent Organic Framework ◽  
The One ◽  
Organic Framework

In this paper, we describe the construction of a new fluorescent hydroxyl- and hydrazone-based covalent organic framework (TFPB-DHTH COF) through the one-pot polycondensation of 1,3,5-tris(4-formylphenyl)benzene (TFPB) and 2,5-dihydroxyterephthalohydrazide (DHTH) under...

One-pot development of water soluble copper nanoclusters with red emission and aggregation induced fluorescence enhancement

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34090-34095 ◽  
Author(s):  
Dan Li ◽  
Zhenhua Chen ◽  
Zhanghui Wan ◽  
Tiezhu Yang ◽  
Hao Wang ◽  
...  
Keyword(s):  
Fluorescence Enhancement ◽  
Water Soluble ◽  
Copper Nanoclusters ◽  
One Pot ◽  
Red Emission

The binding of Zn2+ and Al3+ to OH on the copper core of Cu NCs promotes the formation of Cu NC–OH–Zn–OH–Cu NCs and Cu NC–OH–Al–OH–Cu NCs aggregates, which enables aggregation induced fluorescence enhancement.

Silver nanoparticles modified by water-soluble leaning tower[6]arenes for sensing and catalysis

2021 ◽  
Author(s):  
Yi-Nan Zhang ◽  
Zheng Li ◽  
Suriguga Meng ◽  
Alideertu Dong ◽  
Ying-Wei Yang
Keyword(s):  
Silver Nanoparticles ◽  
Hybrid Material ◽  
Water Soluble ◽  
One Pot ◽  
Sodium Salts ◽  
Good Dispersion ◽  
One Pot Synthesis ◽  
The One ◽  
Excellent Stability

Carboxylated leaning tower[6]arene sodium salts are used as an efficient stabiliser for the one-pot synthesis of silver nanoparticles. The resulting hybrid material with good dispersion, excellent stability and narrow size...

scholarly journals 5-Phenyl-10,15,20-Tris(4-sulfonatophenyl)porphyrin: Synthesis, Catalysis, and Structural Studies

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3363 ◽  
Author(s):  
Aitor Arlegui ◽  
Zoubir El-Hachemi ◽  
Joaquim Crusats ◽  
Albert Moyano
Keyword(s):  
Alder Reaction ◽  
Water Soluble ◽  
Experimental Conditions ◽  
One Pot ◽  
Force Microscopy ◽  
Diels Alder Reaction ◽  
Transmission Electron ◽  
Porphyrin Synthesis ◽  
The One ◽  
Water Soluble Porphyrin

A convenient protocol for the preparation of 5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin, a water-soluble porphyrin with unique aggregation properties, is described. The procedure relies on the one-pot reductive deamination of 5-(4-aminophenyl)-10,15,20-tris(4-sulfonatophenyl)porphyrin, that can be in turn easily obtained from 5,10,15,20-tetraphenylporphyrin by a known three-step sequence involving mononitration, nitro to amine reduction and sulfonation of the phenyl groups. This method provides the title porphyrin in gram scale, and compares very favorably with the up to now only described procedure based on the partial sulfonation of TPP, that involves a long and tedious chromatographic enrichment of the final compound. This has allowed us to study for the first time both the use of its zwitterionic aggregate as a supramolecular catalyst of the aqueous Diels–Alder reaction, and the morphology of the aggregates obtained under optimized experimental conditions by atomic force microscopy and also by transmission electron cryomicroscopy.

scholarly journals Water-Soluble O-, S- and Se-Functionalized Cyclic Acetyl-triaza-phosphines. Synthesis, Characterization and Application in Catalytic Azide-alkyne Cycloaddition

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5479
Author(s):  
Abdallah Mahmoud ◽  
Piotr Smoleński ◽  
M. Guedes da Silva ◽  
Armando Pombeiro
Keyword(s):  
Cycloaddition Reaction ◽  
Structural Features ◽  
Water Soluble ◽  
31P Nmr Spectroscopy ◽  
The Novel ◽  
X Ray Diffraction ◽  
One Pot ◽  
Hirshfeld Surfaces ◽  
The One ◽  
High Yields

The 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) derivatives, viz. the already reported 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane 5-oxide (DAPTA=O, 1), the novel 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-sulfide (DAPTA=S, 2), and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane-5-selenide (DAPTA=Se, 3), have been synthesized under mild conditions. They are soluble in water and most common organic solvents and have been characterized using 1H and 31P NMR spectroscopy and, for 2 and 3, also by single crystal X-ray diffraction. The effect of O, S, or Se at the phosphorus atom on the structural features of the compounds has been investigated, also through the analyses of Hirshfeld surfaces. The presence of 1–3 enhances the activity of copper for the catalytic azide-alkyne cycloaddition reaction in an aqueous medium. The combination of cheaply available copper (II) acetate and compound 1 has been used as a catalyst for the one-pot and 1,4-regioselective procedure to obtain 1,2,3-triazoles with high yields and according to ‘click rules’.

Attachment of Functionalized Single-Walled Carbon Nanotubes (SWNTs) to Silicon Surfaces

2008 ◽  
Vol 8 (3) ◽  
pp. 1545-1550 ◽  
Author(s):  
Liling Zeng ◽  
Nancy Pattyn ◽  
Andrew R. Barron
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Water Soluble ◽  
Silicon Surfaces ◽  
One Pot ◽  
Single Walled Carbon ◽  
Direct Fluorination ◽  
Assembled Monolayers ◽  
The One ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes (SWNTs) were functionalized by direct fluorination and subsequent reaction with 6-aminohexanoic acid for water-soluble carboxylic acid functionalized SWNTs (AHA-SWNTs). Both of the compounds were used as precursors to attach SWNTs to APTES coated silicon surfaces. AHA-SWNTs in aqueous solution were reacted with APTES self-assembled monolayers (SAMs) with coupling reagents N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide (EDC) and N-hydroxysuccinimide (NHS). The surface coverage is a function of concentration of AHA-SWNTs, solvent and coupling method. While for the fluorinated SWNTs (F-SWNTs), direct addition of F-SWNTs to preformed APTES SAMs at 90 °C shows essentially no reaction, in contrast to the one-pot reaction of F-SWNTs with APTES molecules in the presence of SWNTs on a silicon substrate. This reaction route provides a convenient method to attach SWNTs to silicon surfaces.

A novel, facile, rapid, solvent free protocol for the one pot green synthesis of chromeno[2,3-d]pyrimidines using reusable nano ZnAl2O4– a NOSE approach and photophysical studies

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6578-6587 ◽  
Author(s):  
Balijapalli Umamahesh ◽  
Triveni Rajashekhar Mandlimath ◽  
Kulathu I. Sathiyanarayanan
Keyword(s):  
Green Synthesis ◽  
Solvent Free ◽  
Pyrimidine Derivatives ◽  
One Pot ◽  
Photophysical Studies ◽  
The One

The preparation of an eco-friendly, highly stable, reusable nano ZnAl2O4was used as an excellent catalyst for the pseudo four component synthesis of a library of fluorescent chromeno[2,3-d]pyrimidine derivatives.

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