Yasutaka Kitahama
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View article: Efficient Near‐Infrared‐Light‐Driven H<sub>2</sub> Production with Salts of a Diprotonated Saddle‐Distorted Porphyrin as Photosensitizers
Efficient Near‐Infrared‐Light‐Driven H<sub>2</sub> Production with Salts of a Diprotonated Saddle‐Distorted Porphyrin as Photosensitizers Open
Development of near‐infrared (NIR)‐light‐driven photocatalytic hydrogen (H 2 ) production is indispensable for an efficient use of solar energy in a sustainable society. Herein, a strategy is reported for achieving higher quantum yields of…
View article: Surface-Enhanced Raman spectroscopy for Point-of-Care Bioanalysis: From lab to field
Surface-Enhanced Raman spectroscopy for Point-of-Care Bioanalysis: From lab to field Open
In the ever-evolving landscape of biomedical diagnostics, the early diagnosis of a disease is important for not only a patient but also the public health of a country. In this regard, the detection of pathogens as well as the analysis of b…
View article: A Wettability Contrast SERS Droplet Assay for Multiplexed Analyte Detection
A Wettability Contrast SERS Droplet Assay for Multiplexed Analyte Detection Open
Droplet assay platforms have emerged as a significant methodology, providing distinct advantages such as sample compartmentalization, high throughput, and minimal analyte consumption. However, inherent complexities, especially in multiplex…
View article: An emerging tool in healthcare: wearable surface-enhanced Raman Spectroscopy
An emerging tool in healthcare: wearable surface-enhanced Raman Spectroscopy Open
This perspective explores the progressive domain of wearable surface-enhanced Raman spectroscopy (SERS), underscoring its potential to revolutionize healthcare. As an advanced variation of traditional Raman spectroscopy, SERS offers height…
View article: A highly simple and controllable nitrogen-doping method for carbon-based surface-enhanced Raman spectroscopy substrates
A highly simple and controllable nitrogen-doping method for carbon-based surface-enhanced Raman spectroscopy substrates Open
We controlled N doping and expansion of the conjugated system in polyacrylonitrile (PAN)-based SERS substrates by varying the pyrolysis temperature.
View article: An Ultralow‐Cost, Durable, Flexible Substrate for Ultrabroadband Surface‐Enhanced Raman Spectroscopy
An Ultralow‐Cost, Durable, Flexible Substrate for Ultrabroadband Surface‐Enhanced Raman Spectroscopy Open
Flexible devices have recently seen notable advancements for use in various areas. Surface‐enhanced Raman spectroscopy (SERS) has emerged as a transformative technology in this space. However, practical applications of flexible SERS substr…
View article: Place & Play SERS: sample collection and preparation-free surface-enhanced Raman spectroscopy
Place & Play SERS: sample collection and preparation-free surface-enhanced Raman spectroscopy Open
We have fabricated a flexible, adhesive gold/polyvinylalcohol nanomesh substrate for use in SERS. This substrate allows for the acquisition of SERS spectra through the simple application of the gold nanomesh onto samples.
View article: Place & Play SERS: sample collection and preparation-free surface-enhanced Raman spectroscopy
Place & Play SERS: sample collection and preparation-free surface-enhanced Raman spectroscopy Open
The ability to perform sensitive, real-time, in situ, multiplex chemical analysis is indispensable for diverse applications such as human health monitoring, food safety testing, forensic analysis, environmental sensing, and homeland securi…
View article: Optical Properties of Chiral Azo-Schiff Base Mn(II) and Zn(II) Complexes with Silver Nanoparticles
Optical Properties of Chiral Azo-Schiff Base Mn(II) and Zn(II) Complexes with Silver Nanoparticles Open
Herein we have originally designed chiral azo-salen Mn(II) and Zn(II) complexes for interacting silver nanoparticles (AgNPs) exhibiting localized surface plasmon resonance (LSPR). Understanding excited state and reaction intermediate durin…
View article: Chrial discrimination by TERS
Chrial discrimination by TERS Open
Tip-enhanced Raman scattering (TERS) using a silver tip that is chemically modified by an achiral para-mercaptopyridine (pMPY) probe molecule has been utilized for chiral discrimination. Differences in the relative intensities of the pMPY …
View article: Porous carbon nanowire array for surface-enhanced Raman spectroscopy
Porous carbon nanowire array for surface-enhanced Raman spectroscopy Open
View article: SERS Blinking on Anisotropic Nanoparticles
SERS Blinking on Anisotropic Nanoparticles Open
A truncated power law analysis was developed for surface-enhanced Raman scattering (SERS) blinking observed on anisotropic silver nanoparticles (NPs). Using modified equations, a richer and more diverse set of SERS blinking parameters was …
View article: Porous carbon nanowire array for surface-enhanced Raman spectroscopy
Porous carbon nanowire array for surface-enhanced Raman spectroscopy Open
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmo…
View article: Porous carbon nanowire array for surface-enhanced Raman spectroscopy
Porous carbon nanowire array for surface-enhanced Raman spectroscopy Open
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmo…
View article: Raman image-activated cell sorting
Raman image-activated cell sorting Open
View article: Porous carbon nanowire array for highly sensitive, biocompatible, reproducible surface-enhanced Raman spectroscopy
Porous carbon nanowire array for highly sensitive, biocompatible, reproducible surface-enhanced Raman spectroscopy Open
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for vibrational spectroscopy as it provides several orders of magnitude higher sensitivity than inherently weak spontaneous Raman scattering by exciting localized surface plasmo…
View article: Observation and Analysis of Blinking Surface-enhanced Raman Scattering
Observation and Analysis of Blinking Surface-enhanced Raman Scattering Open
From a single molecule at a silver nanoaggregate junction, blinking surface-enhanced Raman scattering (SERS) is observed. Here, a protocol is presented on how to prepare the SERS-active silver nanoaggregate, record a video of certain blink…
View article: One-dimensional plasmonic hotspots located between silver nanowire dimers evaluated by surface-enhanced resonance Raman scattering
One-dimensional plasmonic hotspots located between silver nanowire dimers evaluated by surface-enhanced resonance Raman scattering Open
Hotspots of surface-enhanced resonance Raman scattering (SERRS) are localized within 1 nm at gaps or crevices of plasmonic nanoparticle (NP) dimers. We demonstrate SERRS hotspots with volumes that are extended in one dimension tens of thou…