scholarly journals Red-Emitting SBBF (Single-Benzene-Based Fluorophore)-Silica Hybrid Material: One-Pot Synthesis, Characterization, and Biomedical Applications

Nanomaterials â—½  
2021 â—½  
Vol 11 (8) â—½  
pp. 2036
Author(s):  
Jaehoon Kim â—½  
Jong Min An â—½  
Yuna Jung â—½  
Na Hee Kim â—½  
Youngwoong Kim â—½  
...  

We report, for the first time, a new red-emitting hybrid material based on a single-benzene-based fluorophore (SBBF) and silica. This robust formulation shows several features, including bright emissions at a red wavelength (>600 nm), high scalability (>gram-scale), facile synthesis (one-pot reaction; SBBF formation, hydrolytic condensation, propagation), high stability (under different humidity, pH, light), bio-imaging applicability with low cellular toxicity, and an antibacterial effect within Gram-negative/Gram-positive strains. Based on our findings, we believe that these hybrid materials can pave the way for the further development of dye-hybrid materials and applications in various fields.

10.1039/c6en00109b â—½  
2016 â—½  
Vol 3 (4) â—½  
pp. 745-753 â—½  
Author(s):  
Wu-Jun Liu â—½  
LiLi Ling â—½  
Yuan-Ying Wang â—½  
Hui He â—½  
Yan-Rong He â—½  
...  
Keyword(s):  
Fast Pyrolysis â—½  
High Yield â—½  
Waste Biomass â—½  

The Ag nanoparticle-embedded biochar hybrid material (Ag@biochar) was synthesized in one-pot by fast pyrolysis of the Ag preloaded biomass, and its catalytic effect on HCOOH-induced Cr(vi) reduction was evaluated.


10.1039/c8ta10633a â—½  
2019 â—½  
Vol 7 (7) â—½  
pp. 2993-2999 â—½  
Author(s):  
Jian-Feng Huang â—½  
Jun-Min Liu â—½  
Li-Min Xiao â—½  
Yu-Hui Zhong â—½  
Liang Liu â—½  
...  

A highly robust hybrid material Calix-3-TiO2 based on calixarene dye and TiO2 is prepared by a facile sol–gel method for the first time. When Pt nanoparticles are introduced onto the hybrid, the catalysts display efficient and persistent photocatalytic water splitting activities.


Nanomaterials â—½  
10.3390/nano9050731 â—½  
2019 â—½  
Vol 9 (5) â—½  
pp. 731 â—½  
Author(s):  
Razieh Sadraei â—½  
Maria Cristina Paganini â—½  
Paola Calza â—½  
Giuliana Magnacca

For the first time, γ-Al2O3 and Bio-Based Substances (BBS) hybrids (A-BBS) were prepared through a simple electrostatic interaction occurring between alumina, used as a support, and BBS (Bio-Based Substance from composted biowastes) carrying positive and negative charges, respectively. We evaluated the optimal amount of BBS to be immobilized on the support and the stability of the resulting A-BBS in order to use this novel hybrid material as an adsorbent for the removal of polar pollutants. Characterization was carried out by X-Ray Diffraction (XRD) for evaluating the crystal structure of the support, Fourier transform infrared spectroscopy (FT-IR) to evidence the presence of BBS on the hybrid material, thermogravimetric analysis (TGA) to measure the thermal stability of the hybrid materials and quantify the BBS amount immobilized on the support, N2 adsorption at 77 K for the evaluation of the surface area and porosity of the systems, Zeta potential measurements to evaluate the effect of BBS immobilization on the surface charge of the particles and choose the substrates possibly interacting with them. Firstly, we tested the adsorption capability of three samples differently coated with BBS toward cationic species considering various adsorbate/adsorbent ratio. Crystal Violet (CV) was chosen as model pollutant to compare the performance of the hybrid materials with those of other materials described in the literature. The adsorption data were modeled by Langmuir and Freundlich adsorption isotherms. Then, we studied the adsorption capability of the developed material towards molecules with different structures; for this purpose, two contaminants of emerging concerns (carbamazepine and atenolol) were tested. The results indicate that A-BBS could be applied in wastewater treatment for the removal of a significant amount of polar species. In addition, a comparison with literature data concerning CV adsorption was carried out in order to evaluate the environmental impact of synthetic routes used to prepare different adsorbents.


2020 â—½  
Vol 23 (23) â—½  
pp. 2626-2634
Author(s):  
Saiedeh Kamalifar â—½  
Hamzeh Kiyani

: An efficient and facial one-pot synthesis of 4-aryl-3,4-dihydrobenzo[g]quinoline- 2,5,10(1H)-triones was developed for the first time. The process proceeded via the three-component cyclocondensation of 2-amino-1,4-naphthoquinone with Meldrum’s acid and substituted benzaldehydes under green conditions. The fused 3,4-dihydropyridin-2(1H)- one-ring naphthoquinones have been synthesized with good to high yields in refluxing ethanol as a green reaction medium. This protocol is simple and effective as well as does not involve the assistance of the catalyst, additive, or hazardous solvents.


Biomedicines â—½  
2021 â—½  
Vol 9 (7) â—½  
pp. 819
Author(s):  
Nicolai Rügen â—½  
Timothy P. Jenkins â—½  
Natalie Wielsch â—½  
Heiko Vogel â—½  
Benjamin-Florian Hempel â—½  
...  

Assassin bug venoms are potent and exert diverse biological functions, making them potential biomedical goldmines. Besides feeding functions on arthropods, assassin bugs also use their venom for defense purposes causing localized and systemic reactions in vertebrates. However, assassin bug venoms remain poorly characterized. We collected the venom from the assassin bug Rhynocoris iracundus and investigated its composition and bioactivity in vitro and in vivo. It caused lysis of murine neuroblastoma, hepatoma cells, and healthy murine myoblasts. We demonstrated, for the first time, that assassin bug venom induces neurolysis and suggest that it counteracts paralysis locally via the destruction of neural networks, contributing to tissue digestion. Furthermore, the venom caused paralysis and melanization of Galleria mellonella larvae and pupae, whilst also possessing specific antibacterial activity against Escherichia coli, but not Listeria grayi and Pseudomonas aeruginosa. A combinatorial proteo-transcriptomic approach was performed to identify potential toxins responsible for the observed effects. We identified neurotoxic Ptu1, an inhibitory cystin knot (ICK) toxin homologous to ω-conotoxins from cone snails, cytolytic redulysins homologous to trialysins from hematophagous kissing bugs, and pore-forming hemolysins. Additionally, chitinases and kininogens were found and may be responsible for insecticidal and cytolytic activities. We demonstrate the multifunctionality and complexity of assassin bug venom, which renders its molecular components interesting for potential biomedical applications.


2021 â—½  
Vol 17 (1) â—½  
Author(s):  
Shuo Zhang â—½  
Frederieke A. M. van der Mee â—½  
Roel J. Erckens â—½  
Carroll A. B. Webers â—½  
Tos T. J. M. Berendschot

AbstractIn this report we present a confocal Raman system to identify the unique spectral features of two proteins, Interleukin-10 and Angiotensin Converting Enzyme. Characteristic Raman spectra were successfully acquired and identified for the first time to our knowledge, showing the potential of Raman spectroscopy as a non-invasive investigation tool for biomedical applications.


Pharmaceutics â—½  
2021 â—½  
Vol 13 (7) â—½  
pp. 1094
Author(s):  
Allan Radaic â—½  
Nam E. Joo â—½  
Soo-Hwan Jeong â—½  
Seong-II Yoo â—½  
Nicholas Kotov â—½  
...  

Prostate and breast cancer are the current leading causes of new cancer cases in males and females, respectively. Phosphatidylserine (PS) is an essential lipid that mediates macrophage efferocytosis and is dysregulated in tumors. Therefore, developing therapies that selectively restore PS may be a potential therapeutic approach for carcinogenesis. Among the nanomedicine strategies for delivering PS, biocompatible gold nanoparticles (AuNPs) have an extensive track record in biomedical applications. In this study, we synthesized biomimetic phosphatidylserine-caped gold nanoparticles (PS-AuNPs) and tested their anticancer potential in breast and prostate cancer cells in vitro. We found that both cell lines exhibited changes in cell morphology indicative of apoptosis. After evaluating for histone-associated DNA fragments, a hallmark of apoptosis, we found significant increases in DNA fragmentation upon PS-AuNP treatment compared to the control treatment. These findings demonstrate the use of phosphatidylserine coupled with gold nanoparticles as a potential treatment for prostate and breast cancer. To the best of our knowledge, this is the first time that a phosphatidylserine-capped AuNP has been examined for its therapeutic potential in cancer therapy.


RSC Advances â—½  
10.1039/d0ra09282g â—½  
2021 â—½  
Vol 11 (11) â—½  
pp. 6221-6233
Author(s):  
G. Eliad Benitez-Medina â—½  
Raúl Flores â—½  
Luis Vargas â—½  
Fernando Cuenú â—½  
Pankaj Sharma â—½  
...  
Keyword(s):  
Dft Studies â—½  
Ft Ir â—½  

Ruthenium–silica hybrid materials were synthesized. The process was tracked by FT-IR, DRS-UV-Vis, DFT and deconvolution analyses, finding experimental–theoretical correlation.


10.1039/c8nj04514c â—½  
2019 â—½  
Vol 43 (5) â—½  
pp. 2269-2273 â—½  
Author(s):  
Guojie Meng â—½  
Shengguang Gao â—½  
Ying Liu â—½  
Li Zhang â—½  
Chunmei Song â—½  
...  
Keyword(s):  
One Pot â—½  

The synthesis of amino- and sulfo-bifunctionalized hyper-crosslinked organic nanotube frameworks for one-pot cascade reactions was reported for the first time.


Polymers â—½  
2020 â—½  
Vol 13 (1) â—½  
pp. 86
Author(s):  
Jesús-María García-Martínez â—½  
Emilia P. Collar

According to the IUPAC (International Union of Pure and Applied Chemistry), a hybrid material is that composed of an intimate mixture of inorganic components, organic components, or both types of components which usually interpenetrate on scales of less than 1 μm [...]


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