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1,416 Results Found

  • Review
  • Open Access
62 Citations
11,854 Views
66 Pages

Natural Products Containing ‘Rare’ Organophosphorus Functional Groups

  • Janusz J. Petkowski,
  • William Bains and
  • Sara Seager

28 February 2019

Phosphorous-containing molecules are essential constituents of all living cells. While the phosphate functional group is very common in small molecule natural products, nucleic acids, and as chemical modification in protein and peptides, phosphorous...

  • Proceeding Paper
  • Open Access
48 Views
7 Pages

11 November 2025

The compound 6-(1,3-dimethylureido)dibenzo[c,e][1,2]oxaphosphinine 6-oxide was synthesized in a single step, under mild reaction conditions, from the commercially available H-phosphinate 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and 1...

  • Article
  • Open Access
1 Citations
1,606 Views
10 Pages

Ring-Opening Reaction of 1-Phospha-2-Azanorbornenes via P-N Bond Cleavage and Reversibility Studies

  • Kyzgaldak Ramazanova,
  • Anna Karina Müller,
  • Peter Lönnecke,
  • Oldamur Hollóczki,
  • Barbara Kirchner and
  • Evamarie Hey-Hawkins

19 October 2023

The reactive P-N bond in 1-phospha-2-azanorbornenes is readily cleaved by simple alcohols to afford P-chiral 2,3-dihydrophosphole derivatives as a racemic mixture. The isolation of the products was not possible due to the reversibility of the reactio...

  • Proceeding Paper
  • Open Access
2 Citations
1,226 Views
8 Pages

One-Pot Synthesis of Phosphoramidates from dibenzo[1,3,2]dioxaphosphepine-6-oxide

  • Giacomo Marra,
  • Marco Bortoluzzi and
  • Lodovico Agostinis

15 November 2023

Flame retardants play a crucial role in mitigating the hazards associated with fires by impeding their ignition and spread. However, conventional halogen-based flame retardants have encountered environmental and health concerns due to their persisten...

  • Article
  • Open Access
7 Citations
3,858 Views
12 Pages

Chemically Bonded N-PDI-P/WO3 Organic-Inorganic Heterojunction with Improved Photoelectrochemical Performance

  • Cheng Feng,
  • Xihong Mi,
  • Dingwen Zhong,
  • Weiming Zhang,
  • Yongping Liu,
  • Dayong Fan,
  • Ming Li,
  • Jiefeng Hai and
  • Zhenhuan Lu

15 January 2020

The chemical bonding of bandgap adjustable organic semiconductors with inorganic semiconducting materials is effective in constructing a high-performance heterogeneous photoanode. In this study, a new asymmetric perylene diimide derivative molecule (...

  • Article
  • Open Access
14 Citations
5,220 Views
17 Pages

1-(N-Acylamino)alkyltriarylphosphonium Salts with Weakened Cα-P+ Bond Strength—Synthetic Applications

  • Jakub Adamek,
  • Anna Węgrzyk,
  • Justyna Kończewicz,
  • Krzysztof Walczak and
  • Karol Erfurt

25 September 2018

The α-amidoalkylating properties of 1-(N-acylamino)alkyltriarylphosphonium salts with weakened Cα-P+ bond strength are discussed and examined. It is demonstrated that such type of phosphonium salts reacts smoothly with a diverse array of...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,777 Views
19 Pages

This paper reports the computational study of phosphorus-doped boron clusters PBn/PBn–/PBn+ (n = 4–8). First, a global search and optimization of these clusters were performed to determine the stable structures. We used density functional...

  • Article
  • Open Access
4 Citations
3,111 Views
17 Pages

β2-Integrin Adhesive Bond Tension under Shear Stress Modulates Cytosolic Calcium Flux and Neutrophil Inflammatory Response

  • Vasilios Aris Morikis,
  • Szu Jung Chen,
  • Julianna Madigan,
  • Myung Hyun Jo,
  • Lisette Caroline Werba,
  • Taekjip Ha and
  • Scott Irwin Simon

9 September 2022

On arrested neutrophils a focal adhesive cluster of ~200 high affinity (HA) β2-integrin bonds under tension is sufficient to trigger Ca2+ flux that signals an increase in activation in direct proportion to increments in shear stress. We reasoned...

  • Article
  • Open Access
9 Citations
10,298 Views
12 Pages

30 November 2012

Biotin is an important molecule for modern biological studies including, e.g., cellular transport. Its exclusive affinity to fluorescent streptavidin/avidin proteins allows ready and specific detection. As a consequence methods for the attachment of...

  • Review
  • Open Access
75 Citations
11,412 Views
29 Pages

4 November 2017

This review provides an outline of the most noteworthy achievements in the area of C-N, C-O and C-P bond formation by hydroamination, hydroalkoxylation, hydrophosphination, hydrophosphonylation or hydrophosphinylation reaction on unactivated alkenes...

  • Short Note
  • Open Access
366 Views
8 Pages

14 November 2025

A new zirconium trichloride complex, supported by a monoanionic, pyrrole-based bisphosphinimine NNN-pincer ligand, [LZrCl3] (L = 2,5-[iPr2P=N(4-iPrC6H4)]2NH(C6H2) (1), is reported. Comparison with a related iminopincer complex reveals significant dif...

  • Article
  • Open Access
4 Citations
8,157 Views
12 Pages

The reaction between benzyl amines, triethyl orthoformate, and diethyl phosphite affords either bisphosphonic (compound 1) or N-benzylaminobenzylphosphonic (compound 2) acid depending on the reaction conditions. The final output of the reaction can b...

  • Article
  • Open Access
1,195 Views
25 Pages

10 August 2025

We study the microstructural properties and state of hydration of aqueous low-molecular-weight poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) solutions and their dependence on polymer concentration and pH by means of detailed atomistic Molecular...

  • Article
  • Open Access
13 Citations
3,010 Views
17 Pages

11 January 2021

Nitrogen-containing flame retardants have been extensively applied due to their low toxicity and smoke-suppression properties; however, their poor charring ability restricts their applications. Herein, a representative nitrogen-containing flame retar...

  • Feature Paper
  • Review
  • Open Access
27 Citations
13,892 Views
16 Pages

1 April 2021

There are varieties of methods available for the exploration of solids using nuclear magnetic resonance (NMR) spectroscopy. Some of these methods are quite sophisticated, others require specialized equipment. This review is addressed to those for who...

  • Article
  • Open Access
2 Citations
2,136 Views
12 Pages

Cyclometallated Palladium(II) Complexes: An Approach to the First Dinuclear Bis(iminophosphorane)phosphane-[C,N,S] Metallacycle

  • Marcos Rúa-Sueiro,
  • Paula Munín-Cruz,
  • Adolfo Fernández,
  • Juan M. Ortigueira,
  • María Teresa Pereira and
  • José M. Vila

19 October 2022

Treatment of bis(iminophosphorane)phosphane ligands 2a–2e with Li2PdCl4 gave a set of novel diphosphane-derived complexes bearing two metallacycle rings, each one enclosing a P=N double bond: the unprecedented bis(iminophosphorane)phosphane-[C,...

  • Article
  • Open Access
16 Citations
5,748 Views
25 Pages

Design, Synthesis and Molecular Modeling Study of Conjugates of ADP and Morpholino Nucleosides as A Novel Class of Inhibitors of PARP-1, PARP-2 and PARP-3

  • Yuliya V. Sherstyuk,
  • Nikita V. Ivanisenko,
  • Alexandra L. Zakharenko,
  • Maria V. Sukhanova,
  • Roman Y. Peshkov,
  • Ilia V. Eltsov,
  • Mikhail M. Kutuzov,
  • Tatiana A. Kurgina,
  • Ekaterina A. Belousova and
  • Vladimir A. Ivanisenko
  • + 3 authors

27 December 2019

We report on the design, synthesis and molecular modeling study of conjugates of adenosine diphosphate (ADP) and morpholino nucleosides as potential selective inhibitors of poly(ADP-ribose)polymerases-1, 2 and 3. Sixteen dinucleoside pyrophosphates c...

  • Article
  • Open Access
14 Citations
2,774 Views
16 Pages

Novel p.G250A Mutation Associated with Chronic Pancreatitis Highlights Misfolding-Prone Region in Carboxypeptidase A1 (CPA1)

  • Máté Sándor,
  • Franziska G. Thiel,
  • Margit Schmid,
  • Alexandra Demcsák,
  • Nataly C. Morales Granda,
  • Balázs Csaba Németh,
  • Sandor Vajda,
  • André Hoerning and
  • Miklós Sahin-Tóth

7 December 2022

Inborn mutations in the digestive protease carboxypeptidase A1 (CPA1) gene may be associated with hereditary and idiopathic chronic pancreatitis (CP). Pathogenic mutations, such as p.N256K, cause intracellular retention and reduced secretion of CPA1,...

  • Article
  • Open Access
1 Citations
1,653 Views
16 Pages

Synthesis and Investigation of the Properties of a Branched Phthalonitrile Containing Cyclotriphosphazene

  • Dengxun Ren,
  • Zexu Fan,
  • Jiaqu Zhang,
  • Yi Xu,
  • Xianzhong Tang and
  • Mingzhen Xu

29 November 2024

To study the properties of cyclotriphosphazene (CTP)-containing phthalonitriles, a branched phthalonitrile containing CTP (CTP–PN) with self-catalytic behavior was designed and synthesized. The structure of CTP–PN was characterized by FT&...

  • Article
  • Open Access
26 Citations
3,766 Views
15 Pages

Gas Sensing Performance and Mechanism of CuO(p)-WO3(n) Composites to H2S Gas

  • Fang Peng,
  • Yan Sun,
  • Weiwei Yu,
  • Yue Lu,
  • Jiaming Hao,
  • Rui Cong,
  • Jichao Shi,
  • Meiying Ge and
  • Ning Dai

13 June 2020

In this work, the compositional optimization in copper oxide/tungsten trioxide (CuO/WO3) composites was systematically studied for hydrogen sulfide (H2S) sensing. The response of CuO/WO3 composites changes from p-type to n-type as the CuO content dec...

  • Article
  • Open Access
1,486 Views
17 Pages

Bioactive resin cements are gaining popularity for their clinical benefits, but concerns remain regarding their color stability. This study evaluated the color change (ΔE00) and whiteness change (ΔWID) in bioactive resin cements and how t...

  • Article
  • Open Access
9 Citations
4,830 Views
10 Pages

12 June 2020

In this paper, the relationship between coordination complexes and electrical properties according to the bonding structure of boron and silicon was analyzed to optimize the p–n junction quality for high-efficiency n-type crystalline solar cell...

  • Article
  • Open Access
9 Citations
3,113 Views
18 Pages

25 September 2020

The PSGL-1-actin cytoskeleton linker proteins ezrin/radixin/moesin (ERM), an adaptor between P-selectin glycoprotein ligand-1 (PSGL-1) and spleen tyrosine kinase (Syk), is a key player in PSGL-1 signal, which mediates the adhesion and recruitment of...

  • Article
  • Open Access
5 Citations
2,698 Views
14 Pages

Synthesis of Orthorhombic Tin Dioxide Nanowires in Track Templates

  • Zein Baimukhanov,
  • Alma Dauletbekova,
  • Diana Junisbekova,
  • Valeriy Kalytka,
  • Abdirash Akilbekov,
  • Aiman Akylbekova,
  • Guldar Baubekova,
  • Gulnara Aralbayeva,
  • Assyl-Dastan Bazarbek and
  • Abay Usseinov
  • + 1 author

7 March 2024

Electrochemical deposition into a prepared SiO2/Si-p ion track template was used to make orthorhombic SnO2 vertical nanowires (NWs) for this study. As a result, a SnO2-NWs/SiO2/Si nanoheterostructure with an orthorhombic crystal structure of SnO2 nan...

  • Feature Paper
  • Article
  • Open Access
10 Citations
4,374 Views
18 Pages

Antibacterial Activity of Amidodithiophosphonato Nickel(II) Complexes: An Experimental and Theoretical Approach

  • Enrico Podda,
  • Massimiliano Arca,
  • Giulia Atzeni,
  • Simon J. Coles,
  • Antonella Ibba,
  • Francesco Isaia,
  • Vito Lippolis,
  • Germano Orrù,
  • James B. Orton and
  • Anna Pintus
  • + 2 authors

28 April 2020

The reactions of 2,4-bis(4-methoxyphenyl)-1,3-dithio-2,4-diphosphetane-2,4-disulfide (Lawesson’s Reagent, LR) with benzylamine (BzNH2) and 4-phenylbutylamine (PhBuNH2) yield benzylammonium P-(4-methoxyphenyl)-N-benzyl-amidodithiophosphonate (Bz...

  • Article
  • Open Access
13 Citations
5,379 Views
14 Pages

Mechanical Forces between Mycobacterial Antigen 85 Complex and Fibronectin

  • Albertus Viljoen,
  • David Alsteens and
  • Yves Dufrêne

14 March 2020

Adhesion to extracellular matrix proteins is an important first step in host invasion, employed by many bacterial pathogens. In mycobacteria, the secreted Ag85 complex proteins, involved in the synthesis of the cell envelope, are known to bind to fib...

  • Article
  • Open Access
2,791 Views
12 Pages

Regioselective N- versus P-Deprotonation of Aminophosphane Tungsten(0) Complexes

  • Tatjana Terschüren,
  • Philip Junker,
  • Alexander Schmer,
  • Arturo Espinosa Ferao and
  • Rainer Streubel

22 June 2022

1,2-Bifunctional ligands are rare, in general, which holds especially for those with a P-N linkage. Herein, we report on the synthesis of P-tert-butyl substituted aminophosphane W(CO)5 complexes 3a-f (a: R = R’ = H; b: R = H, R = Me; c: R = H,...

  • Article
  • Open Access
910 Views
15 Pages

Synergistic Cs/P Co-Doping in Tubular g-C3N4 for Enhanced Photocatalytic Hydrogen Evolution

  • Juanfeng Gao,
  • Xiao Lin,
  • Bowen Jiang,
  • Haiyan Zhang and
  • Youji Li

Developing high-performance photocatalysts for solar hydrogen production requires the synergistic modulation of chemical composition, nanostructure, and charge carrier transport pathways. Herein, we report a Cs and P co-doped tubular graphitic carbon...

  • Article
  • Open Access
2,496 Views
14 Pages

Cancer cells can evade immune surveillance through binding of its transmembrane receptor CD47 to CD172a on myeloid cells. CD47 is recognized as a promising immune checkpoint for cancer immunotherapy inhibiting macrophage phagocytosis. N-terminal post...

  • Article
  • Open Access
5 Citations
2,860 Views
11 Pages

Ester Bonds for Modulation of the Mechanical Properties of Protein Hydrogels

  • Di Zhang,
  • Luofei Li,
  • Yizhou Fang,
  • Quan Ma,
  • Yi Cao and
  • Hai Lei

Hydrogels are soft materials constructed of physically or chemically crosslinked polymeric net-works with abundant water. The crosslinkers, as the mechanophores that bear and respond to mechanical forces, play a critical role in determining the mecha...

  • Article
  • Open Access
64 Citations
3,513 Views
22 Pages

Synthesis and Characterization of Green ZnO@polynaniline/Bentonite Tripartite Structure (G.Zn@PN/BE) as Adsorbent for As (V) Ions: Integration, Steric, and Energetic Properties

  • Mohamed Abdel Salam,
  • Mohamed Mokhtar,
  • Soha M. Albukhari,
  • Doaa F. Baamer,
  • Leonardo Palmisano,
  • Mariusz Jaremko and
  • Mostafa R. Abukhadra

9 June 2022

A green ZnO@polynaniline/bentonite composite (G.Zn@PN/BE) was synthesized as an enhanced adsorbent for As (V) ions. Its adsorption properties were assessed in comparison with the integrated components of bentonite (BE) and polyaniline/bentonite (PN/B...

  • Article
  • Open Access
4 Citations
3,147 Views
17 Pages

Temperature Induced Monoclinic to Orthorhombic Phase Transition in Protonated ZSM-5 Zeolites with Different Si/Al Ratios: An In-Situ Synchrotron X-ray Powder Diffraction Study

  • Nicola Precisvalle,
  • Maura Mancinelli,
  • Matteo Ardit,
  • Giada Beltrami,
  • Lara Gigli,
  • Alfredo Aloise,
  • Enrico Catizzone,
  • Massimo Migliori,
  • Girolamo Giordano and
  • Vincenzo Guidi
  • + 1 author

20 June 2023

ZSM-5 zeolite is the synthetic counterpart to mutinaite. After thermal activation of the as-synthesized form, the symmetry of the ZSM-5 zeolite is lowered to the monoclinic P21/n. ZSM-5 then undergoes a polymorphic displacive phase transition from th...

  • Article
  • Open Access
569 Views
22 Pages

QTAIM Based Computational Assessment of Cleavage Prone Bonds in Highly Hazardous Pesticides

  • Andrés Aracena,
  • Sebastián Elgueta,
  • Sebastián Pizarro and
  • César Zúñiga

1 October 2025

Highly Hazardous Pesticides (HHPs) pose severe risks to human health and the environment, making it essential to understand their molecular stability and degradation pathways. In this study, the Quantum Theory of Atoms in Molecules (QTAIM) was applie...

  • Review
  • Open Access
13 Citations
5,577 Views
41 Pages

Histidine Phosphorylation: Protein Kinases and Phosphatases

  • Jia Ning,
  • Margaux Sala,
  • Jeffrey Reina,
  • Rajasree Kalagiri,
  • Tony Hunter and
  • Brandon S. McCullough

Phosphohistidine (pHis) is a reversible protein post-translational modification (PTM) that is currently poorly understood. The P-N bond in pHis is heat and acid-sensitive, making it more challenging to study than the canonical phosphoamino acids pSer...

  • Article
  • Open Access
311 Views
11 Pages

Determination of Methylphosphonofluoridic Acid in the Environment by Derivatization and LC/MS/MS Analysis

  • Chen Belay,
  • Adi Tzadok,
  • Moran Madmon,
  • Tamar Shamai Yamin,
  • Gali Sod-Moriah,
  • Victoria Nahum and
  • Avi Weissberg

Rapid and specific detection of toxic Novichok agents (A230, A232, A234) is crucial for forensic investigations and the prevention of chemical weapon misuse. While A232 and A234 are relatively stable, A230 is less stable and primarily undergoes hydro...

  • Article
  • Open Access
1 Citations
2,874 Views
13 Pages

Membrane Tubulation with a Biomembrane Force Probe

  • Lancelot Pincet and
  • Frédéric Pincet

18 December 2023

Tubulation is a common cellular process involving the formation of membrane tubes ranging from 50 nm to 1 µm in diameter. These tubes facilitate intercompartmental connections, material transport within cells and content exchange between cells....

  • Article
  • Open Access
11 Citations
2,934 Views
11 Pages

30 November 2021

Panax Notoginseng Saponins (PNS) may be beneficial to human health due to their bioactive function. The application of PNS in functional foods was limited due to the bitter taste and low oral bioavailability. PNS were encapsulated by polymerized whey...

  • Review
  • Open Access
64 Citations
18,106 Views
52 Pages

17 May 2021

Organophosphorus compounds play a vital role as nucleic acids, nucleotide coenzymes, metabolic intermediates and are involved in many biochemical processes. They are part of DNA, RNA, ATP and a number of important biological elements of living organi...

  • Article
  • Open Access
4 Citations
1,415 Views
18 Pages

15 June 2023

In this paper, a non-directional short-cut polyvinyl alcohol fiber (PVA), directional carbon-glass fabric woven net, and a combination of these fibers were used to reinforce sprayed cement mortar (named FRCM-SP, FRCM-CN, and FRCM-PN accordingly), and...

  • Article
  • Open Access
5 Citations
6,133 Views
10 Pages

P-Fluorous phosphine (R2PRf), in which the perfluoroalkyl group is directly bonded to the phosphorus atom, is a promising ligand because it has a hybrid functionality, i.e., electron-poor and fluorous ligands. However, examples of P-fluorous phosphin...

  • Article
  • Open Access
26 Citations
4,478 Views
11 Pages

19 September 2019

Polygalacturonase (EC. 3.2.1.15) is an enzyme that hydrolyzes the alpha-1,4 glycosidic bonds between galacturonic acid. In this study, an alkaline polygalacturonase producer Bacillus paralicheniformis CBS32 was isolated from kimchi (conventional Kore...

  • Article
  • Open Access
7 Citations
2,512 Views
13 Pages

Urbach Rule in the Red-Shifted Absorption Edge of PET Films Irradiated with Swift Heavy Ions

  • Adil Z. Tuleushev,
  • Fiona E. Harrison,
  • Artem L. Kozlovskiy and
  • Maxim V. Zdorovets

25 February 2022

This paper presents a new analysis of the experimental transmission spectra of polyethylene terephthalate (PET) films before and after irradiation with swift heavy ions (SHI) films, as reported previously by the authors. It is shown that the absorpti...

  • Article
  • Open Access
35 Citations
7,108 Views
18 Pages

Effect of Different Flame-Retardant Bridged DOPO Derivatives on Properties of in Situ Produced Fiber-Forming Polyamide 6

  • Jelena Vasiljević,
  • Marija Čolović,
  • Nataša Čelan Korošin,
  • Matic Šobak,
  • Žiga Štirn and
  • Ivan Jerman

13 March 2020

The production of sustainable and effective flame retardant (FR) polyamide 6 (PA6) fibrous materials requires the establishment of a novel approach for the production of polyamide 6/FR nanodispersed systems. This research work explores the influence...

  • Article
  • Open Access
41 Citations
7,709 Views
18 Pages

5 March 2015

In order to find bamboo leaves with high contents of bioactive polysaccharides, 32 samples were chosen to analyze their polysaccharide content by GC and sulfuric acid-anthrone colorimetric assays. Purified polysaccharides (BLPS) were separated from...

  • Article
  • Open Access
17 Citations
3,793 Views
18 Pages

Poly(N-vinyl pyrrolidone) (PVP), poly(2-methyl-2-oxazoline) (PMOZ), poly(2-ethyl-2-oxazoline) (PEOZ), poly(2-n-propyl-2-oxazoline) (PnPOZ), and poly(2-isopropyl-2-oxazoline) (PiPOZ) were used to prepare solid dispersions with ibuprofen (IB), a model...

  • Article
  • Open Access
14 Citations
2,738 Views
14 Pages

Comparison of Oil-Seed Shell Biomass-Based Biochar for the Removal of Anionic Dyes—Characterization and Adsorption Efficiency Studies

  • Shrikanta Sutradhar,
  • Arijit Mondal,
  • Felix Kuehne,
  • Oliver Krueger,
  • Sudip K. Rakshit and
  • Kang Kang

13 March 2024

This research investigated the synthesis of biochar through the direct pyrolysis of pre-roasted sunflower seed shells (SFS) and peanut shells (PNS) and compared their application for the effective removal of textile dyes from wastewater. Biochar prep...

  • Article
  • Open Access
11 Citations
3,858 Views
9 Pages

14 December 2018

The synthesis and characterization by single-crystal X-ray diffraction (XRD) studies of two new zinc(II) hexaborate(2−) complexes, [Zn(en){B6O7(OH)6}]·2H2O (en = 1,2-diaminoethane) (1) and [Zn(pn){B6O7(OH)6}]·1.5H2O (pn = 1,2-diam...

  • Review
  • Open Access
62 Citations
4,676 Views
18 Pages

21 November 2021

In this review, several examples of the application of pnictogen (Pn) (group 15) and chalcogen (Ch) bonding (group 16) interactions in organocatalytic processes are gathered, backed up with Molecular Electrostatic Potential surfaces of model systems....

  • Article
  • Open Access
22 Citations
6,290 Views
14 Pages

24 September 2015

The new ternary arsenides AE3TrAs3 (AE = Sr, Ba; Tr = Al, Ga) and their phosphide analogs Sr3GaP3 and Ba3AlP3 have been prepared by reactions of the respective elements at high temperatures. Single-crystal X-ray diffraction studies reveal that Sr3AlA...

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