New approach of constructing biosensing matrices by physical and chemical crosslinking of biotin-alginate with alginate-pyrrole

2009 ◽  
Vol 54 (18) ◽  
pp. 4359-4364 ◽  
Author(s):  
K. Abu-Rabeah ◽  
I.I. Niţă ◽  
A.M. Tencaliec ◽  
R.S. Marks
Keyword(s):  
Chemical Crosslinking ◽  
New Approach ◽  
Physical And Chemical

scholarly journals Hybrid Polymer-Immobilized Nanosized Pd Catalysts for Hydrogenation Reaction Obtained via Frontal Polymerization

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Anatolii D. Pomogailo ◽  
Gulzhian I. Dzhardimalieva
Keyword(s):  
Pd Nanoparticles ◽  
Hydrogenation Reaction ◽  
Frontal Polymerization ◽  
Hybrid Nanocomposites ◽  
Pd Catalysts ◽  
New Approach ◽  
Inorganic Composites ◽  
Nondestructive Testing Method ◽  
Physical And Chemical ◽  
Polymer Stabilized

A new approach to the synthesis of mixed-type immobilized catalysts by frontal polymerization of metal-containing monomer in the presence of highly dispersed mineral support has been developed. Synthesis of the acrylamide Pd(II) nitrate complex, Pd(CH2=CHCONH2)2 (NO3)2 (PdAAm), on the SiO2 (Al2O3, C) surface and its consequent frontal polymerization and reduction lead to the formation of organic-inorganic composites with polymer-stabilized Pd nanoparticles. The immobilized metal complexes and palladium nanoparticles were characterized by various physical and chemical methods. The synthesized hybrid nanocomposites are efficient and selective catalysts for hydrogenation of cyclohexene, alkene, and acetylene alcohols, as well as di- and trinitrotoluene. Catalyst intermediates separated by nondestructive testing method have been described and changing in the palladium charge during the catalytic process has been identified.

Defect-Free Chemical Functionalization of Magnetic Monolayers Based on Coordination Polymers

2018 ◽  
Author(s):  
Javier López-Cabrelles ◽  
Samuel Mañas-Valero ◽  
Iñigo J. Vitórica-Yrezábal ◽  
Pablo J. Bereciartúa ◽  
J. Alberto Rodríguez-Velamazán ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
2D Materials ◽  
Chemical Properties ◽  
Benzimidazole Derivatives ◽  
Synthetic Method ◽  
New Approach ◽  
Chemical Functionalization ◽  
Powerful Approach ◽  
Physical And Chemical ◽  
And Chemical Properties

<p>Chemical functionalization has demonstrated to be a powerful approach to tailor the physical and chemical properties of two-dimensional (2D) materials, to increase their processability and</p> <p>stability, to add new functionalities and, even, to create new 2D materials. However, this post synthetic method – which involves the anchoring of molecules on the surface of an exfoliated 2D crystal – inevitably leads to defective materials, which lack long-range structural order. If defect-free functionalized monolayers are required, a radically new approach needs to be developed. Here we present a pre-synthetic method based on coordination chemistry that affords the isolation of crystalline functionalized monolayers. This involves functionalization of the ligand prior to the formation of the 2D material. The concept is illustrated using layered coordination polymers formed by reacting various benzimidazole derivatives with ferrocene. This surface tuneability, together with the robust magnetic and mechanical properties of these 2D materials, make them exceptional candidates for studying the magnetism in the 2D limit, as well as for developing membranes for selective molecular sensing.</p>

Bulrush-Like Double Perovskite: Synthesis, Tunneling Magnetoresistance, and Magnetocaloric Effects

2008 ◽  
Vol 8 (6) ◽  
pp. 2793-2810 ◽  
Author(s):  
W. Zhong ◽  
N. J. Tang ◽  
C. T. Au ◽  
Y. W. Du
Keyword(s):  
Room Temperature ◽  
Recent Observation ◽  
Chemical Properties ◽  
Double Perovskite ◽  
Tunneling Magnetoresistance ◽  
Double Perovskites ◽  
New Approach ◽  
Half Metallic ◽  
Physical And Chemical ◽  
And Chemical Properties

The recent observation of room temperature tunneling magnetoresistance (TMR) in half-metallic A2FeMoO6 (A = Ca, Sr, Ba) double perovskites, and their importance to the emerging field of spintronics has led to considerable effort being dedicated to detailed investigations of the physical and chemical properties of these materials. This article will present an review of our recent investigations covering the synthesis, structures, magnetic and transport properties of "bulrush-like" A2FeMoO6 (A = Sr, Ba). Utilizing the high shape anisotropy as well as the reactivity of A2FeMoO6 to water and a sonochemical technique, we managed to manipulate the properties of grain boundary barriers, and thus put forward a new approach for the enhancement of room temperature TMR. The magnetocaloric effects of A2FeMoO6 double perovskites will also be discussed.

Influences of physical and chemical crosslinking techniques on electrospun type A and B gelatin fiber mats

2010 ◽  
Vol 47 (4) ◽  
pp. 431-438 ◽  
Author(s):  
Juthamas Ratanavaraporn ◽  
Ratthapol Rangkupan ◽  
Hathairat Jeeratawatchai ◽  
Sorada Kanokpanont ◽  
Siriporn Damrongsakkul
Keyword(s):  
Type A ◽  
Chemical Crosslinking ◽  
Fiber Mats ◽  
Physical And Chemical

scholarly journals Elastin-mimetic protein polymers capable of physical and chemical crosslinking

Biomaterials ◽  
2009 ◽  
Vol 30 (3) ◽  
pp. 409-422 ◽  
Author(s):  
Rory E. Sallach ◽  
Wanxing Cui ◽  
Jing Wen ◽  
Adam Martinez ◽  
Vincent P. Conticello ◽  
...  
Keyword(s):  
Chemical Crosslinking ◽  
Protein Polymers ◽  
Physical And Chemical

Effect of physical and chemical crosslinking structure on fatigue behavior of styrene butadiene elastomer

2014 ◽  
Vol 131 (20) ◽  
pp. n/a-n/a ◽  
Author(s):  
Yuxin Liu ◽  
Jian Chen ◽  
Guangxian Li ◽  
Xiaolin Liu ◽  
Xia Liao ◽  
...  
Keyword(s):  
Fatigue Behavior ◽  
Chemical Crosslinking ◽  
Physical And Chemical ◽  
Styrene Butadiene

scholarly journals Pharmacognostic, Physicochemical and Anti-Oxidant Screening of Solenostemma Argel’s Leaf Extract

2020 ◽  
Vol 5 (9) ◽  
pp. 1202-1206
Author(s):  
Mehad Mustafa Adam Khamiss ◽  
Prakash C. Choudhary
Keyword(s):  
Nitric Oxide ◽  
Antioxidant Activity ◽  
Leaf Extract ◽  
New Approach ◽  
Anti Oxidant ◽  
Lead Generation ◽  
Prominent Response ◽  
Tribal Region ◽  
Physical And Chemical ◽  
Ethanolic Leaf Extract

The present work deals with the identification of new approach towards the lead generation in medicinal chemistry and authenticating the reports present on the use of this Sudanese medicinal plant Solenostemma argel in the tribal region of Sudan. The pharmacognostic screening showed its physical and chemical composition with identification of active ingredients. The antioxidant activity was carried out by DPPH and nitric oxide scavenging method. In which ethanolic leaf extract showed prominent response which may be due to the promising presence of flavonoids and related poly phenolic compounds in it

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