Zobrazeno 1 - 10
of 439
pro vyhledávání: '"Nicholas D. Spencer"'
Autor:
Vinay Sharma, Xinfeng Charlie Shi, George Yao, Ying Zheng, Nicholas D. Spencer, James Yuliang Wu
Publikováno v:
Royal Society Open Science, Vol 11, Iss 10 (2024)
The poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC)-modified, silicone hydrogel, contact lens (CL) material lehfilcon A has previously been demonstrated to have a lubricious, antifouling and ultra-soft surface. This study provides confirmatory
Externí odkaz:
https://doaj.org/article/aa933188b97f43f68e736a508d7d0d59
Autor:
Nicholas D Spencer
Man lubricates mostly with oil. Nature lubricates exclusively with water. Pure water is a poor lubricant, but the addition of proteins, especially glycoproteins, can modify surfaces to make them far more lubricating at slow speeds. Understanding how
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Understanding shear thickening in colloidal suspensions is of great practical importance. Hsu et al. create responsive polymer-coated silica particles whose rheology can be tuned in situ, following modifications of their tribology, which is separatel
Externí odkaz:
https://doaj.org/article/241d7a5395254eb3a26a2ef12071fe30
Autor:
Nicholas D Spencer
The focus of this book is surface modification, with the goal of tailoring materials for a specific application. By means of this approach, ideal bulk properties of a material, such as its tensile strength (temperature stability, density, or even cos
Publikováno v:
ACS Omega, Vol 2, Iss 2, Pp 455-461 (2017)
Externí odkaz:
https://doaj.org/article/4a9b0e57028646cfafa2c821c5ae4dae
Autor:
Akinori Kuzuya, Cristiana Passiu, Yoko Yamakoshi, Shivaprakash N. Ramakrishna, Masayuki Nasuda, Antonella Rossi, Nicholas D. Spencer, Ankita Ray
Publikováno v:
ACS Nano, 15 (12)
A tripod molecule incorporating a C60 photocatalyst into a rigid scaffold with disulfide legs was designed and synthesized for the stable and robust attachment of C60 onto an Au-coated atomic force microscope (AFM) tip. The "tripod-C60"was immobilize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4927a2b2ab9f077a1e17610dfa295f17
https://doi.org/10.1021/acsnano.1c04953
https://doi.org/10.1021/acsnano.1c04953
Autor:
Shivaprakash N. Ramakrishna, Andrea Mattarei, Edmondo M. Benetti, Lucca Trachsel, Elisa Martinelli, Giulia Morgese, Francesca Niccolai, Cristina Paradisi, Nicholas D. Spencer, Matteo Romio, Benjamin Grob, Elisa Guazzelli
Publikováno v:
Journal of the American Chemical Society, 143 (45)
Journal of the American Chemical Society
Journal of the American Chemical Society
Many synthetic polymers used to form polymer-brush films feature a main backbone with functional, oligomeric side chains. While the structure of such graft polymers mimics biomacromolecules to an extent, it lacks the monodispersity and structural pur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86effb3ab2a264f89d61030a49b4187d
https://doi.org/10.1021/jacs.1c08383
https://doi.org/10.1021/jacs.1c08383
Polymeric Friction Modifiers: Influence of Anchoring Chemistry on Their Adsorption and Effectiveness
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 38(37)
Correlated adsorption and lubricity have been investigated using polymeric friction modifiers, specifically designed with an oleophilic brush-forming block and an anchoring block of comparable length. Through adsorption, rheology, and friction measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5131f17082406890144a903f13aeca0
https://pubmed.ncbi.nlm.nih.gov/36082717
https://pubmed.ncbi.nlm.nih.gov/36082717
Autor:
Anissa Ouald Chaib, Alessandro Fracassi, Ankita Ray, Dominik Schauenburg, Nako Nakatsuka, Antonella Rossi, Jeffrey W. Bode, Matthias Tanriver, Simon Scherrer, Yoko Yamakoshi, Cristiana Passiu, Joydeb Mandal, Nicholas D. Spencer, Shivaprakash N. Ramakrishna
Publikováno v:
ACS Applied Materials & Interfaces. 13:29113-29121
The efficient and bioorthogonal chemical ligation reaction between potassium acyltrifluoroborates (KATs) and hydroxylamines (HAs) was used for the surface functionalization of a self-assembled monolayer (SAM) with biomolecules. An alkane thioether mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1529e2f401aa3f277c752ac118dfa1e
https://doi.org/10.1021/acsami.1c05652
https://doi.org/10.1021/acsami.1c05652
Autor:
Nicholas D. Spencer
Publikováno v:
Tribology Online, Vol 9, Iss 4, Pp 143-153 (2014)
Hydrophilic polymer brushes constitute a man-made approach to imitating nature’s lubrication mechanisms. A polymer that has been frequently used to explore such systems is poly(ethylene glycol) (PEG). While PEG may not be the ideal solution for wat
Externí odkaz:
https://doaj.org/article/00575b9be612441490892bff34dcea82