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16 Results Found

  • Article
  • Open Access
24 Citations
8,306 Views
13 Pages

Pathogen-Imprinted Organosiloxane Polymers as Selective Biosensors for the Detection of Targeted E. coli

  • Maria T. Dulay,
  • Naina Zaman,
  • David Jaramillo,
  • Alison C. Mody and
  • Richard N. Zare

14 May 2018

Early detection of pathogens requires methods that are fast, selective, sensitive and affordable. We report the development of a biosensor with high sensitivity and selectivity based on the low-cost preparation of organosiloxane (OSX) polymers imprin...

  • Article
  • Open Access
6 Citations
2,058 Views
15 Pages

Organosiloxane-Modified Auricularia Polysaccharide (Si-AP): Improved High-Temperature Resistance and Lubrication Performance in WBDFs

  • Fan Zhang,
  • Yu Wang,
  • Bo Wang,
  • Yuan Geng,
  • Xiaofeng Chang,
  • Wenzhe Zhang,
  • Yutong Li and
  • Wangyuan Zhang

This study introduces a novel organosilicon-modified polysaccharide (Si-AP) synthesized via grafting and comprehensively evaluates its performance in water-based drilling fluids (WBDFs). The molecular structure of Si-AP was characterized using Fourie...

  • Article
  • Open Access
3 Citations
1,544 Views
17 Pages

Catalytic Activity of Cytochrome P-450 using NADP+ Reduced by an Anionic Hydride Organosiloxane

  • Jessica E. MENDIETA-WEJEBE,
  • José CORREA-BASURTO,
  • Juan M. ACEVES,
  • Daniel RAMÍREZ-ROSALES,
  • José TRUJILLO-FERRARA,
  • Rafael ZAMORANO-ULLOA and
  • Martha C. ROSALES-HERNÁNDEZ

21 April 2008

Abstract Cytochrome P-450 (P450) catalyzes a wide variety of chemical reactions; however, its use for in vitro assays has several limitations, the most striking one is the use of the reduced nicotinamide adenine dinucleotide phosphate (NADPH) coenzym...

  • Article
  • Open Access
10 Citations
5,387 Views
10 Pages

Biocatalytic Silylation: The Condensation of Phenols and Alcohols with Triethylsilanol

  • Emily I. Sparkes,
  • Chisom S. Egedeuzu,
  • Billie Lias,
  • Rehana Sung,
  • Stephanie A. Caslin,
  • S. Yasin Tabatabaei Dakhili,
  • Peter G. Taylor,
  • Peter Quayle and
  • Lu Shin Wong

22 July 2021

Silicatein-α (Silα), a hydrolytic enzyme derived from siliceous marine sponges, is one of the few enzymes in nature capable of catalysing the metathesis of silicon–oxygen bonds. It is therefore of interest as a possible biocatalyst for the synthesis...

(This article belongs to the Special Issue 10th Anniversary of Catalysts: Biocatalysis in Analysis and Synthesis—Past, Present and Future)
  • Article
  • Open Access
36 Citations
5,708 Views
17 Pages

11 June 2021

Polyhydroxyalkanoate (PHA) is a biodegradable plastic with great potential for tackling plastic waste and marine pollution issues, but its commercial applications have been limited due to its poor processability. In this study, surface-modified cellu...

(This article belongs to the Special Issue Cellulose Nanocrystals)
  • Article
  • Open Access
7 Citations
6,113 Views
13 Pages

25 October 2013

A series of new organosiloxane ferroelectric liquid crystalline (FLC) materials have been synthesized, and their mesomorphic and physical properties have been characterized. Four new disiloxanes and trisiloxanes, containing biphenyl 4-hydroxybenzoat...

(This article belongs to the Special Issue Experimental and Theoretical Studies of Liquid Crystalline Materials: Where Do We Stand after 120 Years?)
  • Article
  • Open Access
12 Citations
5,380 Views
17 Pages

Improved Production and Biophysical Analysis of Recombinant Silicatein-α

  • Emily I. Sparkes,
  • Rachel A. Kettles,
  • Chisom S. Egedeuzu,
  • Natalie L. Stephenson,
  • Stephanie A. Caslin,
  • S. Yasin Tabatabaei Dakhili and
  • Lu Shin Wong

20 August 2020

Silicatein-α is a hydrolase found in siliceous sea sponges with a unique ability to condense and hydrolyse silicon–oxygen bonds. The enzyme is thus of interest from the perspective of its unusual enzymology, and for potential applications...

(This article belongs to the Section Cellular Biochemistry)
  • Review
  • Open Access
34 Citations
10,010 Views
12 Pages

Synthesis and Properties of MQ Copolymers: Current State of Knowledge

  • Elena Tatarinova,
  • Nataliya Vasilenko and
  • Aziz Muzafarov

23 October 2017

In this review, we discuss currently available studies on the synthesis and properties of MQ copolymers. The data on methods of producing hydrolytic and heterofunctional polycondensation of functional organosilanes as well as the obtaining MQ copolym...

(This article belongs to the Section Organic Chemistry)
  • Article
  • Open Access
3 Citations
2,784 Views
9 Pages

Development of Improved Spectrophotometric Assays for Biocatalytic Silyl Ether Hydrolysis

  • Yuqing Lu,
  • Chisom S. Egedeuzu,
  • Peter G. Taylor and
  • Lu Shin Wong

18 April 2024

Reported herein is the development of assays for the spectrophotometric quantification of biocatalytic silicon−oxygen bond hydrolysis. Central to these assays are a series of chromogenic substrates that release highly absorbing phenoxy anions u...

(This article belongs to the Section Enzymology)
  • Feature Paper
  • Article
  • Open Access
21 Citations
5,174 Views
11 Pages

2D Mesoporous Channels of PMO; a Platform for Cluster-Like Pt Synthesis and Catalytic Activity in Nitrophenol Reduction

  • Mohamed Esmat,
  • Hamed Mohtasham,
  • Yasser GadelHak,
  • Reza Tarbiat Mehrebani,
  • Rafat Tahawy,
  • Sadegh Rostamnia,
  • Naoki Fukata,
  • Samad Khaksar and
  • Esmail Doustkhah

1 February 2020

Thiourea-bridged organosiloxane is used to synthesize a periodic mesoporous organosilica (PMO). Since this PMO has an S-enriched surface, owing to thiourea functional groups, it exhibits strong coordination toward Pt ions, and it shows a high tunabil...

(This article belongs to the Section Catalytic Materials)
  • Article
  • Open Access
11 Citations
5,747 Views
11 Pages

Forensic detection of non-volatile nitro explosives poses a difficult analytical challenge. A colorimetric sensor comprising of ultrasonically prepared silica-dye microspheres was developed for the sensitive gas detection of cyclohexanone, a volatile...

  • Article
  • Open Access
2 Citations
1,510 Views
13 Pages

Characterization of Metabolomic Response of Candida spp. to Heavy Metal Exposure

  • Perla Nayeli Reyes-Sánchez,
  • Jesús Alfonso Chairez-Ávila,
  • Karol Karla García-Aguirre,
  • Verónica Esparza-Cordero,
  • María Fernanda Romo-García,
  • Juan C. Medina-Llamas and
  • Juan Ernesto López-Ramos

As a result of anthropogenic activities, contaminants such as heavy metals have been introduced into the environment. Microorganisms, including Candida spp., have emerged as a viable alternative for their removal; however, the mechanism responsible f...

(This article belongs to the Section Microbiomes)
  • Article
  • Open Access
19 Citations
6,022 Views
12 Pages

24 January 2022

In this study, a novel polybenzimidazole (PBI)-based organic solvent nanofiltration (OSN) membrane possessing excellent stability under high pH condition was developed. To improve the chemical stability, the pristine PBI membrane was crosslinked with...

(This article belongs to the Special Issue Recent Membrane Research and Development in Korea)
  • Article
  • Open Access
1,281 Views
24 Pages

14 July 2026

Organosilane interlayers are widely used to improve the adhesion and corrosion resistance of multilayer protective coating systems. In this work, a nitrile-functional organosilane, 3-[(3-(triethoxysilyl)propyl)amino]propanenitrile (AN), was investiga...

(This article belongs to the Special Issue Advances in Organic Thin Films: Deposition, Processing, Characterization and Application)
  • Article
  • Open Access
1 Citations
1,606 Views
23 Pages

Biodegradation of Post-Consumer Expanded Polystyrene and Low-Density Polyethylene by Tenebrio molitor Larvae

  • Israel Ávila-Lázaro,
  • Daniel Gustavo López-Couoh,
  • Alejandro Ávila-Ortega,
  • José Antonio Azamar-Barrios,
  • Germán Giácoman-Vallejos,
  • Carlos Alberto Quintal-Franco,
  • José Ramón Laines-Canepa and
  • María del Carmen Ponce-Caballero

The environmental persistence of post-consumer plastics remains a critical challenge due to their chemical stability, the presence of additives, and prior environmental weathering. This study evaluates the partial biodegradation and chemical transfor...

(This article belongs to the Topic Plastic Contamination (Plastamination): An Environmental and Public Health-Related Concern)
  • Article
  • Open Access
71 Citations
11,133 Views
12 Pages

5 October 2018

Polyurethane (PU) foam adhesives were prepared from castor oil as a polyol with isocyanate poly(4,4’-methylene diphenyl isocyanate) (PMDI) using a solvent-free process. The NCO/OH molar ratio used for the preparation of PU foams was 1.5. Water,...