Expression of concern: d -Penicillamine functionalized dendritic fibrous nanosilica (DFNS-DPA): synthesise and its application as an innovative advanced nanomaterial towards sensitive quantification of ractopamine

Key Points

• This expression of concern addresses potential issues with the synthesis and application of DFNS-DPA in quantifying ractopamine.
• Review of synthesis process of DFNS-DPA.
• Examination of application in ractopamine quantification,
• Concerns regarding the reliability of results from the original study.
• Implications for future studies on DFNS-DPA.