Rapid detection of heparin by gold nanorods and near-infrared fluorophore ensemble based platform via nanometal surface energy transfer

Porphyrin as a Cryoprotectant for Graphene Oxide-Coated Gold Nanorods to Produce Conjugated Product with Improved Stability and Opto-Phototherapeutic Properties

“…The results show an increase in the decay time of GO@AuNRs-TPPS 4 compared to TPPS 4 . This can be attributed to the electron absorption of AuNRs, which increases the electron transfer in both states and can be assigned to efficient back electron transfer and recovery of the ground state conjugate [14,43,45]. These results verify the efficient emission quenching of TPPS 4 by the GO@AuNRs in the GO@AuNRs-TPPS 4 , as observed in the fluorescence intensity quenching in the PL spectra (Figure 1D).…”

“…On the other hand, AuNRs have been functionalised with photosensitisers for different applications such as synergistic phototherapy [9][10][11][12][13] and as a sensor [14,15]. However, nanoparticle colloidal preservation in suspensions is still a major challenge.…”

Plasmonic nanometal surface energy transfer-based dual excitation biosensing of pathogens

“…In another work, an NSET-based sensor between AuNRs and fluorescent tetrakis(4-sulfophenyl)porphyrin (TPPS4) as an NSET pair was structured for detection of heparin. 34 Table S1 † also summarizes NSET-based detection platforms for monitoring targets in the past few years. Moreover, an extensive explanation of the NSET assay can be found in the recent review articles by Chen and Hildebrandt et al 12 Considering the advantages of LNPs over fluorophores along with the significance of donor/acceptor spectral overlap in ET-based conjugations, UCNPs and QDs were chosen as a donor to form donor/acceptor pairs for NSET with AuNUs and AuNRs, respectively.…”

“…In another work, an NSET-based sensor between AuNRs and fluorescent tetrakis(4-sulfophenyl)porphyrin (TPPS4) as an NSET pair was structured for detection of heparin. 34 Table S1† also summarizes NSET-based detection platforms for monitoring targets in the past few years. Moreover, an extensive explanation of the NSET assay can be found in the recent review articles by Chen and Hildebrandt et al 12…”