Results 71 to 80 of about 266,478 (309)

Structural characteristics of the carboxylic ester group [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 1981
AbstractAverage bond distances and bond angles in carboxylic esters with different substitution patterns have been derived by analyzing data from many crystal structures retrieved from the Cambridge Structural Database (CSD). Conformation‐al preferences in the attachment of substituents are found.
W. Bernd Schweizer, Jack D. Dunitz
openaire   +1 more source

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

Advanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore, Cristiano Pesce, Antonietta Greco, Claudia Pisante, Greta Avancini, Valentina Di Francesco, Yosi Shamay, Paolo Decuzzi   +7 more
wiley   +1 more source

Poly[[diaqua[μ2-3-carboxy-5-(pyridine-4-carboxamido)benzoato][μ4-5-(pyridine-4-carboxamido)isophthalato]cerium(III)] monohydrate]

Acta Crystallographica Section E, 2012
In the title compound, {[Ce(C14H9N2O5)(C14H8N2O5)(H2O)2]·H2O}n, three carboxyl groups of two independent isophthalate anions are deprotonated and they bridge the CeIII cations, forming a two-dimensional polymeric structure parallel to (001 ...
Yi-Fang Deng, Xue Nie
doaj   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Detonation Nanodiamonds: A Comparison Study by Photoacoustic, Diffuse Reflectance, and Attenuated Total Reflection FTIR Spectroscopies

Nanomaterials, 2020
The qualitative analysis of nanodiamonds by FTIR spectrometry as photoacoustic (FTIR–PAS), diffuse-reflectance (DRIFT), and attenuated total reflection (ATR) modalities was evaluated for rapid and nondestructive analysis and comparison of nanodiamonds ...
Dmitry S. Volkov, Petr K. Krivoshein, Mikhail A. Proskurnin   +2 more
doaj   +1 more source

Chemical patterning for the highly specific and programmed assembly of nanostructures [PDF]

, 2005
We have developed a new chemical patterning technique based on standard lithography-based processes to assemble nanostructures on surfaces with extraordinarily high selectivity.
Alivisatos, Arun Majumdar, Balaji Kannan, Halperin, Hoff, Kannan, Kenneth Castelino, Mirkin, Pallandre, Rajan P. Kulkarni, Sharma, Srinath Satyanarayana, Zhang   +12 more
core   +1 more source

Biosynthesis of Amphotericin Derivatives Lacking Exocyclic Carboxyl Groups [PDF]

Journal of Biological Chemistry, 2005
Amphotericin B is a medically important antifungal antibiotic that is also active against human immunodeficiency virus, Leishmania parasites, and prion diseases. The therapeutic use of amphotericin B is restricted by severe side effects that can be moderated by liposomal formulation or structural alteration.
Carmody, Maria, Murphy, Barry, Byrne, Barry, Power, Patrick, Rai, Dilip K., Rawlings, Bernard, Caffrey, Patrick   +6 more
openaire   +4 more sources

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

Thermal Stability of Sugarcane Bagasse Derivatives bearing Carboxyl Groups Synthesized in Ionic Liquid

BioResources, 2016
To illuminate changes in the thermal stability of lignocellulosic biomass by homogeneous chemical modification in ionic liquids, sugarcane bagasse derivatives bearing carboxyl groups were prepared in ionic liquids.
Ming-Jie Chen, Jin Feng, Qing-Shan Shi
doaj   +1 more source

Carboxyl Group Reactivity in Actin [PDF]

, 1987
Actin is the principal protein of the thin filament of muscle and is also the major component of microfilaments. At low salt concentrations, actin exists in solution as a globular monomer (G-actin) of Mr=42,000. It has a single polypeptide chain of 375 residues and a bound metal-nucleotide (Mg++ or Ca++-ATP or ADP).
openaire   +1 more source