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Highly sensitive plasmonic paper substrate fabricated via amphiphilic polymer self-assembly in microdroplet for detection of emerging pharmaceutical pollutants

Sharipov, Mirkomil ; Kakhkhorov, Sarvar A. ; Tawfik, Salah M. ; Azizov, Shavkatjon ; Liu, Hong-Guo ; Shin, Joong Ho ; Lee, Yong-Ill

Nano Convergence, 2024-12, Vol.11 (1), p.13-13 [Periódico revisado por pares]

Singapore: Springer Nature Singapore

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Título:
Highly sensitive plasmonic paper substrate fabricated via amphiphilic polymer self-assembly in microdroplet for detection of emerging pharmaceutical pollutants
Autor: Sharipov, Mirkomil ; Kakhkhorov, Sarvar A. ; Tawfik, Salah M. ; Azizov, Shavkatjon ; Liu, Hong-Guo ; Shin, Joong Ho ; Lee, Yong-Ill
Assuntos: Air/liquid interface ; Analysis ; Block copolymers ; Chemistry and Materials Science ; Emerging pollutants ; Mass transfer ; Materials Science ; Microdroplet ; Nanoparticles ; Nanoscale Science and Technology ; Nanotechnology ; Nanotechnology and Microengineering ; Plasmonics ; Pollutants ; Polymer industry ; Polystyrene resins ; Raman spectroscopy ; Rhodamine 6G ; Self-assembly ; Silver ; Size distribution ; Substrates ; Surface-enhanced Raman scattering ; Thin films
É parte de: Nano Convergence, 2024-12, Vol.11 (1), p.13-13
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We report an innovative and facile approach to fabricating an ultrasensitive plasmonic paper substrate for surface-enhanced Raman spectroscopy (SERS). The approach exploits the self-assembling capability of poly(styrene-b-2-vinyl pyridine) block copolymers to form a thin film at the air-liquid interface within the single microdroplet scale for the first time and the subsequent in situ growth of silver nanoparticles (AgNPs). The concentration of the block copolymer was found to play an essential role in stabilizing the droplets during the mass transfer phase and formation of silver nanoparticles, thus influencing the SERS signals. SEM analysis of the morphology of the plasmonic paper substrates revealed the formation of spherical AgNPs evenly distributed across the surface of the formed copolymer film with a size distribution of 47.5 nm. The resultant enhancement factor was calculated to be 1.2 × 10 7 , and the detection limit of rhodamine 6G was as low as 48.9 pM. The nanohybridized plasmonic paper was successfully applied to detect two emerging pollutants—sildenafil and flibanserin—with LODs as low as 1.48 nM and 3.45 nM, respectively. Thus, this study offers new prospects for designing an affordable and readily available, yet highly sensitive, paper-based SERS substrate with the potential for development as a lab-on-a-chip device.
Editor: Singapore: Springer Nature Singapore
Idioma: Inglês

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Highly sensitive plasmonic paper substrate fabricated via amphiphilic polymer self-assembly in microdroplet for detection of emerging pharmaceutical pollutants

Sharipov, Mirkomil ; Kakhkhorov, Sarvar A. ; Tawfik, Salah M. ; Azizov, Shavkatjon ; Liu, Hong-Guo ; Shin, Joong Ho ; Lee, Yong-Ill

Singapore: Springer Nature Singapore

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