FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3135389116> ?p ?o ?g. }

• W3135389116 endingPage "7" @default.
• W3135389116 startingPage "1" @default.
• W3135389116 abstract "Well-monodispersed AuNPs were prepared by the reduction of KAuCl4 using sodium borohydride and ascorbic acid as reducing agents. Due to using different reducing agent power, we obtained different results for AuNPs that were functionalised with same ligands. The effect of two different reducing agents on size and stability of the colloidal cationic phosphonium AuNPs was investigated. Their formation and stability was monitored by using UV−Vis absorption spectroscopy, Transmission Electron Microscopy (TEM) and dynamic light scattering (DLS). Small sizes with higher stability during a period of time were generated when NaBH4 was used as reducing agent. AuNPs functionalised by tri(phenyl)phosphoniopropylthiosulfate (4C) (3-thioactylpropyl)- triphenylphosphonium bromide (5) and tri(p-tolyl)phosphoniopropyl- thiosulfate (4) zwitterion via using NaBH4 as reducing agent in H2O / DMSO as solvent, the maximum absorption bands centred at 519, 519 and 529 nm respectively. While, when the ascorbic acid is used as reducing agent, the maximum absorption of AuNPs functionalised by these ligands were centred at 542, 575 and 557 nm respectively. For (6-thioacetylhexyl)tris(2,4,6-trimethoxyphenyl)-phosphonium bromide (8B) showed little difference between two methods, whereas the absorbance centred at 522 nm in the case of NaBH4 and at 528 nm in the case using ascorbic acid as a reducing agent. ATR-FTIR, NMR, ESI-MS techniques can be employed to identify the kinds of functionality of ligands attached to the AuNPs. In this research, we proposed the bio-reducing agent, ascorbic acid, to synthesise the AuNPs, when compared to AuNPs fabricated by using NaBH4 as reducing agent. We studied the relationship between the reducing agents and the stability / sizes of AuNPs. It was found that, various sizes with different stabilities occurred based on various reducing agent used in this Chapter, where AuNPs of different sizes are known to produce contradictory results sometimes in vivo and in vitro bio application 00. All these results in this Chapter, confirmed that KAuCl4 could be reduced during the green synthesis of AuNPs through ascorbic acid, and the same protect ligands used in the case of NaBH4. KAuCl4 – NaBH4 system produced small sizes with small mean deviation and indicated spherical shape. However, they were nearly poly-dispersed and poly-shaped for most process conditions when KAuCl4 – ascorbic acid system was used as reducing agent. Different sizes of AuNPs usually have different bio-applications. Development of more environmentally friendly and biocompatible synthetic ways is one of the main aims to allow their use in biomedical applications. Ascorbic acid has been used as a benign naturally available reducing agent to synthesise AuNPs, due to its high water solubility, low toxicity, and biodegradability. In this review, a green synthesis methodology used in order to produce positively charged biocompatible AuNPs for possibility biomedical applications is outlined." @default.
• W3135389116 created "2021-03-15" @default.
• W3135389116 creator A5046555115 @default.
• W3135389116 creator A5080825493 @default.
• W3135389116 date "2021-01-01" @default.
• W3135389116 modified "2023-09-27" @default.
• W3135389116 title "Review on green synthesis of positively charged biocompatible goldnanoparticles in water: use of ascorbic acid as reducing agent." @default.
• W3135389116 hasPublicationYear "2021" @default.
• W3135389116 type Work @default.
• W3135389116 sameAs 3135389116 @default.
• W3135389116 citedByCount "0" @default.
• W3135389116 crossrefType "journal-article" @default.
• W3135389116 hasAuthorship W3135389116A5046555115 @default.
• W3135389116 hasAuthorship W3135389116A5080825493 @default.
• W3135389116 hasConcept C104819515 @default.
• W3135389116 hasConcept C125287762 @default.
• W3135389116 hasConcept C13965031 @default.
• W3135389116 hasConcept C14631669 @default.
• W3135389116 hasConcept C155672457 @default.
• W3135389116 hasConcept C159985019 @default.
• W3135389116 hasConcept C161790260 @default.
• W3135389116 hasConcept C171250308 @default.
• W3135389116 hasConcept C178790620 @default.
• W3135389116 hasConcept C183882617 @default.
• W3135389116 hasConcept C185592680 @default.
• W3135389116 hasConcept C186423591 @default.
• W3135389116 hasConcept C192562407 @default.
• W3135389116 hasConcept C2776300020 @default.
• W3135389116 hasConcept C2780048404 @default.
• W3135389116 hasConcept C2986274086 @default.
• W3135389116 hasConcept C31903555 @default.
• W3135389116 hasConceptScore W3135389116C104819515 @default.
• W3135389116 hasConceptScore W3135389116C125287762 @default.
• W3135389116 hasConceptScore W3135389116C13965031 @default.
• W3135389116 hasConceptScore W3135389116C14631669 @default.
• W3135389116 hasConceptScore W3135389116C155672457 @default.
• W3135389116 hasConceptScore W3135389116C159985019 @default.
• W3135389116 hasConceptScore W3135389116C161790260 @default.
• W3135389116 hasConceptScore W3135389116C171250308 @default.
• W3135389116 hasConceptScore W3135389116C178790620 @default.
• W3135389116 hasConceptScore W3135389116C183882617 @default.
• W3135389116 hasConceptScore W3135389116C185592680 @default.
• W3135389116 hasConceptScore W3135389116C186423591 @default.
• W3135389116 hasConceptScore W3135389116C192562407 @default.
• W3135389116 hasConceptScore W3135389116C2776300020 @default.
• W3135389116 hasConceptScore W3135389116C2780048404 @default.
• W3135389116 hasConceptScore W3135389116C2986274086 @default.
• W3135389116 hasConceptScore W3135389116C31903555 @default.
• W3135389116 hasIssue "1" @default.
• W3135389116 hasLocation W31353891161 @default.
• W3135389116 hasOpenAccess W3135389116 @default.
• W3135389116 hasPrimaryLocation W31353891161 @default.
• W3135389116 hasRelatedWork W1974098134 @default.
• W3135389116 hasRelatedWork W1990797236 @default.
• W3135389116 hasRelatedWork W2015953875 @default.
• W3135389116 hasRelatedWork W2050855055 @default.
• W3135389116 hasRelatedWork W2070913269 @default.
• W3135389116 hasRelatedWork W2083183532 @default.
• W3135389116 hasRelatedWork W2112889727 @default.
• W3135389116 hasRelatedWork W2161246550 @default.
• W3135389116 hasRelatedWork W2318470602 @default.
• W3135389116 hasRelatedWork W2326646895 @default.
• W3135389116 hasRelatedWork W2345368799 @default.
• W3135389116 hasRelatedWork W2394854392 @default.
• W3135389116 hasRelatedWork W2405317575 @default.
• W3135389116 hasRelatedWork W2746536799 @default.
• W3135389116 hasRelatedWork W2769152027 @default.
• W3135389116 hasRelatedWork W2907970843 @default.
• W3135389116 hasRelatedWork W2941265028 @default.
• W3135389116 hasRelatedWork W2971191429 @default.
• W3135389116 hasRelatedWork W3041290820 @default.
• W3135389116 hasRelatedWork W3048196395 @default.
• W3135389116 hasVolume "4" @default.
• W3135389116 isParatext "false" @default.
• W3135389116 isRetracted "false" @default.
• W3135389116 magId "3135389116" @default.
• W3135389116 workType "article" @default.