Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

Scientific Reports
Sawsan AlmohammedJames H Rice

Abstract

UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enhanced Raman intensity and allows the detection of a wide range of small molecules and low Raman cross-section molecules at concentrations as low as 10-13 M. The aligned FF-PNT/Ag NP template further prevents photodegradation of the molecules under investigation. Our results demonstrate that FF-PNTs can be used as an alternative material to semiconductors such as titanium dioxide for photo-induced surface-enhanced Raman spectroscopy applications.

References

Apr 26, 2003·Science·Meital Reches, Ehud Gazit
May 8, 2003·Journal of the American Chemical Society·Ramin DjalaliHiroshi Matsui
Mar 18, 2005·Journal of the American Chemical Society·Tsutomu Hirakawa, Prashant V Kamat
Aug 16, 2005·Analytical Chemistry·Miri YeminiJudith Rishpon
Jul 13, 2007·The Journal of Physical Chemistry. B·R TakahashiJ P Lewis
Dec 17, 2008·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Mengtao Sun, Hongxing Xu
Feb 20, 2009·Biopolymers·Emmanouil KasotakisAnna Mitraki
Jun 23, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Claire TangAlberto Saiani
Sep 10, 2009·Nano Letters·Nadav AmdurskyGil Rosenman
Feb 9, 2010·Journal of the American Chemical Society·Jino George, K George Thomas
Mar 11, 2010·Advanced Materials·Jangbae KimHyotcherl Ihee
May 22, 2010·Advanced Materials·Nadav AmdurskyGil Rosenman
Sep 23, 2010·Nano Letters·Won-Hwa Park, Zee Hwan Kim
Dec 7, 2010·Nanoscale·Karsten Brandt AndersenWinnie Edith Svendsen
Oct 7, 2011·Angewandte Chemie·Jae Hong KimChan Beum Park
May 9, 2012·Journal of the American Chemical Society·Davide ZaramellaLeonard J Prins
Feb 14, 2013·The Journal of Physical Chemistry. B·Márcia I SouzaWendel A Alves
Oct 29, 2013·Journal of the American Chemical Society·Katsuyoshi IkedaKohei Uosaki
Apr 24, 2014·Nano Letters·Paul KühlerJochen Feldmann
Apr 8, 2015·Chemical Communications : Chem Comm·Wei JiYukihiro Ozaki
Feb 24, 2016·Journal of the American Chemical Society·Allix M SandersJohn D Tovar
Nov 1, 2016·Journal of Raman Spectroscopy : JRS·Valentin SeredaIgor K Lednev

❮ Previous
Next ❯

Citations

Sep 23, 2020·Physical Chemistry Chemical Physics : PCCP·Grégory BarbillonChristophe Humbert
Oct 16, 2020·ACS Applied Materials & Interfaces·Sawsan AlmohammedJames H Rice

❮ Previous
Next ❯

Methods Mentioned

BETA
Raman
surface plasmon resonances
Raman scattering
Infrared Spectroscopy

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.