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Badshah, Mohsin Ali,Ju, Jonghyun,Lu, Xun,Abbas, Naseem,Kim, Seok-min Elsevier 2018 Sensors and actuators. B Chemical Vol.274 No.-
<P><B>Abstract</B></P> <P>Metal-enhanced fluorescence (MEF) has significant potential to increase the sensitivity of fluorescence detection by allowing fluorophores to interact with enhanced electromagnetic fields generated by the localized surface plasmon resonance effects of metallic nanostructures. In this study, the MEF of silver (Ag) vertical nanorods (VNR) arrays fabricated by glancing angle deposition were studied for a DNA microarray. To maximize the enhancement effect of Ag-VNR, Ag-VNR arrays with various lengths were fabricated, and fluorescence signals from the Ag-VNR substrates were measured and compared to glass and commercial Amine slides (Amine 2®, Array-it, USA). For the fluorescence signal measurement, Cy5-conjugated Kallikrein-related peptidase 7 (KLK-7-Cy5) DNA probes were spotted on each substrate, and their fluorescence signal was measured after blocking and washing processes. A maximum enhancement factor 200× that of the glass substrate was obtained from a Ag-VNR with 500 nm length and was 36 times greater than the commercial Amine slide.</P> <P><B>Highlights</B></P> <P> <UL> <LI> GLAD is simple and effective technique for fabricating large area substrates. </LI> <LI> Significant fluorescence enhancement was observed on vertical nanorod substrates. </LI> <LI> A maximum enhancement factor of ∼200X was achieved on 500 nm long nanorods substrate. </LI> </UL> </P>
Badshah, Gran,Liew, Siau-Chuin,Zain, Jasni Mohamad,Ali, Mushtaq Korea Information Processing Society 2015 Journal of information processing systems Vol.11 No.4
Region of interest (ROI) is the most informative part of a medical image and mostly has been used as a major part of watermark. Various shapes ROIs selection have been reported in region-based watermarking techniques. In region-based watermarking schemes an image region of non-interest (RONI) is the second important part of the image and is used mostly for watermark encapsulation. In online healthcare systems the ROI wrong selection by missing some important portions of the image to be part of ROI can create problem at the destination. This paper discusses the complete medical image availability in original at destination using the whole image as a watermark for authentication, tamper localization and lossless recovery (WITALLOR). The WITALLOR watermarking scheme ensures the complete image security without of ROI selection at the source point as compared to the other region-based watermarking techniques. The complete image is compressed using the Lempel-Ziv-Welch (LZW) lossless compression technique to get the watermark in reduced number of bits. Bits reduction occurs to a number that can be completely encapsulated into image. The watermark is randomly encapsulated at the least significant bits (LSBs) of the image without caring of the ROI and RONI to keep the image perceptual degradation negligible. After communication, the watermark is retrieved, decompressed and used for authentication of the whole image, tamper detection, localization and lossless recovery. WITALLOR scheme is capable of any number of tampers detection and recovery at any part of the image. The complete authentic image gives the opportunity to conduct an image based analysis of medical problem without restriction to a fixed ROI.
COMMON RANDOM FIXED POINTS OF RANDOM MULTIVALUED OPERATORS ON POLISH SPACES
Badshah, V.H.,Gagrani, Shweta 충청수학회 2005 충청수학회지 Vol.18 No.1
In this paper, we prove the existence of a common random fixed point of two random multivalued generalized contractions by using functional expressions.
( Gran Badshah ),( Siau Chuin Liew ),( Jasni Mohamad Zain ),( Mushtaq Ali ) 한국정보처리학회 2015 Journal of information processing systems Vol.11 No.4
Region of interest (ROI) is the most informative part of a medical image and mostly has been used as a major part of watermark. Various shapes ROIs selection have been reported in region-based watermarking techniques. In region-based watermarking schemes an image region of non-interest (RONI) is the second important part of the image and is used mostly for watermark encapsulation. In online healthcare systems the ROI wrong selection by missing some important portions of the image to be part of ROI can create problem at the destination. This paper discusses the complete medical image availability in original at destination using the whole image as a watermark for authentication, tamper localization and lossless recovery (WITALLOR). The WITALLOR watermarking scheme ensures the complete image security without of ROI selection at the source point as compared to the other region-based watermarking techniques. The complete image is compressed using the Lempel-Ziv-Welch (LZW) lossless compression technique to get the watermark in reduced number of bits. Bits reduction occurs to a number that can be completely encapsulated into image. The watermark is randomly encapsulated at the least significant bits (LSBs) of the image without caring of the ROI and RONI to keep the image perceptual degradation negligible. After communication, the watermark is retrieved, decompressed and used for authentication of the whole image, tamper detection, localization and lossless recovery. WITALLOR scheme is capable of any number of tampers detection and recovery at any part of the image. The complete authentic image gives the opportunity to conduct an image based analysis of medical problem without restriction to a fixed ROI.
Common Random Fixed Points of Random Multivalued Operators on Polish Spaces
V.B. Badshah,S. Gagrani 충청수학회 2005 충청수학회지 Vol.18 No.1
In this paper, we prove the existence of a common ran-dom xed point of two random multivalued generalized contractionsby using functional expressions.