Results 71 to 80 of about 236,434 (328)

Effect of chloride on the chemical conversion of nitrate to nitrous oxide for δ15N analysis [PDF]

open access: yes, 2009
We investigate the influence of chloride concentration on the performance of the chemical reduction method for measurement of the nitrogen isotopic ratio (δ15N) in NO3− in natural waters (McIlvin and Altabet, 2005).
Altabet, Mark A.   +2 more
core   +1 more source

Reservoir‐Type Subcutaneous Implantable Devices Containing Porous Rate Controlling Membranes for Sustained Delivery of Risperidone

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a novel implantable drug delivery systemwith a biodegradable poly(caprolactone) membrane and compressed drug core forsustained release. These implantable devices deliver risperidone in vitro for 170 days and in vivo for 49 days in rats, showing promise for chronic conditions like schizophrenia.
Linlin Li   +9 more
wiley   +1 more source

[(2-Chlorophenyl)-(4-fluorophenyl)methylene]-(4-fluorophenyl)amine

open access: yesMolbank
The formation of a N,1,1-triaryl imine derived from (2-chlorophenyl)-bis-(4-fluorophenyl)methanol is reported. The title compound is formed from a consecutive process which involves a nucleophilic substitution and subsequent Schmidt reaction.
Salvador Vilchis-Valdés   +4 more
doaj   +1 more source

N-(1-azido-2-(azidomethyl)butan-2-yl)-4-methylbenzenesulfonamide

open access: yesMolbank, 2022
A new bi-triazole precursor, N-(1-azido-2-(azidomethyl)butan-2-yl)-4-methylbenzenesulfonamide, was synthesized in two steps from 2-amino-2-ethyl-1,3-propanediol, with an overall yield of 80%.
Sara Hajib   +3 more
doaj   +1 more source

Gasotransmitters in Modern Medicine: Promises and Challenges in the Use of Porous Crystalline Carriers

open access: yesAdvanced Healthcare Materials, EarlyView.
This perspective provides an overview of the growing interest in utilizing various gasotransmitters—small gaseous signaling molecules namely nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S)—for several therapeutic applications, with emphasis on the potential use of porous materials as carriers to provide safe and controlled local ...
Rosana V. Pinto   +2 more
wiley   +1 more source

Heat resistant polymers of oxidized styrylphosphine [PDF]

open access: yes, 1980
A flame resistant, nontoxic polymer which may be used safely in confined locations where there is inadequate ventilation is prepared either by polymerizing compounds having the formula R-N=P(C6H5)2(C6H4)CH=CH2 where R is an organic moeity selected from ...
Paciorek, K. J. L.
core   +1 more source

Cycloadditions of cyclohexynes and cyclopentyne. [PDF]

open access: yes, 2014
We report the strategic use of cyclohexyne and the more elusive intermediate, cyclopentyne, as a tool for the synthesis of new heterocyclic compounds. Experimental and computational studies of a 3-substituted cyclohexyne are also described.
Garg, Neil K   +4 more
core   +2 more sources

Enhancing the Pharmacokinetics of Aptamers: Targeting AXL In Vivo Using a Bottlebrush Polymer‐Conjugated Aptamer

open access: yesAdvanced Healthcare Materials, EarlyView.
A phosphodiester‐backboned bottlebrush polymer (pacDNA) engineered for aptamer delivery is presented. This design enhances aptamer stability, plasma pharmacokinetics, and target engagement in vivo. In AXL‐driven cancer models, pacDNA inhibits AXL signaling and reduces tumor growth, highlighting the promise of precision polymer scaffolds in aptamer ...
Tingyu Sun   +13 more
wiley   +1 more source

Thermally activated foaming compositions Patent [PDF]

open access: yes, 1969
Storage stable, thermally activated foaming compositions for erecting and rigidizing mechanisms of thin sheet solar ...
Welling, C. E.
core   +1 more source

Direct Surface Modification of the Epidermis Using Mussel‐Inspired Polydopamine with Multiple Anti‐Biofouling Functions

open access: yesAdvanced Healthcare Materials, EarlyView.
Surface modification using mussel‐derived polydopamine (PDA) is a versatile and robust biocompatible strategy that enables direct application to various epidermal surfaces, regardless of their morphological complexity or surface characteristics. The PDA‐coated epidermis exhibits multiple anti‐biofouling functionalities, including antibacterial and anti‐
Su Eon Lee   +14 more
wiley   +1 more source

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