NDLI: Extension of the broadband single-mode integrated optical waveguidetechnique to the ultraviolet spectral region and itsapplications

Content Provider	PubMed Central
Author	Wiederkehr, Rodrigo S. Mendes, Sergio B.
Copyright Year	2013
Abstract	We report here the fabrication, characterization, and application of asingle-mode integrated optical waveguide (IOW) spectrometer capable of acquiringoptical absorbance spectra of surface-immobilized molecules in the visible andultraviolet spectral region down to 315 nm. The UV-extension of the single-modeIOW technique to shorter wavelengths was made possible by our development of alow-loss single-mode dielectric waveguide in the UV region based on an aluminafilm grown by atomic layer deposition (ALD) over a high quality fused silicasubstrate, and by our design/fabrication of a broadband waveguide coupler formedby an integrated diffraction grating combined with a highly anamorphic opticalbeam of large numerical aperture. As an application of the developed technology,we report here the surface adsorption process of bacteriochlorophylla on different interfaces using its Soret absorption bandcentred at 370 nm. The effects of different chemical compositions at thesolid/liquid interface on the adsorption and spectral properties ofbacteriochlorophyll a were determined from the polarized UV-VisIOW spectra acquired with the developed instrumentation. The spectral extensionof the single-mode IOW technique into the ultraviolet region is an importantadvance as it enables extremely sensitive studies in key characteristics ofsurface molecular processes (e.g., protein unfolding and solvation of aromaticamino-acid groups under surface binding) whose spectral features are mainlylocated at wavelengths below the visible spectrum.
Related Links	http://dx.doi.org/10.1039/c3an02201c
Ending Page	1402
Page Count	7
Starting Page	1396
File Format	PDF
ISSN	00032654
e-ISSN	13645528
Journal	The Analyst
Issue Number	6
Volume Number	139
Language	English
Publisher Date	2014-01-01
Access Restriction	Open
Subject Keyword	Analytical Chemistry Spectroscopy Electrochemistry Biochemistry Environmental Chemistry Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Environmental Chemistry Analytical Chemistry Biochemistry Electrochemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Nanocoaxes for Optical and Electronic Devices

Using a Nanopore for Single Molecule Detection and Single Cell Transfection†

Plasmon-Enhanced Optical Sensors: A Review

Single Molecule Sensing by Nanopores and Nanopore Devices

Metabolism of Peptide Reporters in Cell Lysates and Single Cells

Development of an Integrated Metabolomic Profiling Approach for Infectious Diseases Research

Nano-enabled bioanalytical approaches to ultrasensitive detection of low abundance single nucleotide polymorphisms

Chip Based Single Cell Analysis for Nanotoxicity Assessment

Single Molecule Fluorescence Correlation Spectroscopy of Single Apoptotic Cells Using a Red-Fluorescent Caspase Probe

Extension of the broadband single-mode integrated optical waveguidetechnique to the ultraviolet spectral region and itsapplications

Similar Documents

Nanocoaxes for Optical and Electronic Devices

Using a Nanopore for Single Molecule Detection and Single Cell Transfection†

Plasmon-Enhanced Optical Sensors: A Review

Single Molecule Sensing by Nanopores and Nanopore Devices

Metabolism of Peptide Reporters in Cell Lysates and Single Cells

Development of an Integrated Metabolomic Profiling Approach for Infectious Diseases Research

Nano-enabled bioanalytical approaches to ultrasensitive detection of low abundance single nucleotide polymorphisms

Chip Based Single Cell Analysis for Nanotoxicity Assessment

Single Molecule Fluorescence Correlation Spectroscopy of Single Apoptotic Cells Using a Red-Fluorescent Caspase Probe

Extension of the broadband single-mode integrated optical waveguidetechnique to the ultraviolet spectral region and itsapplications