Analyst Blog

Take a look at our great new articles just published in Analyst! They will be free to read until July 27^th. Have a read!

Photoelectrochemical lab-on-paper device based on molecularly imprinted polymer and porous Au-paper electrode
Panpan Wang, Guoqiang Sun, Lei Ge, Shenguang Ge, Jinghua Yu and Mei Yan  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00694H

Morphological weighted penalized least squares for background correction
Zhong Li, De-Jian Zhan, Jia-Jun Wang, Jing Huang, Qing-Song Xu, Zhi-Min Zhang, Yi-Bao Zheng, Yi-Zeng Liang and Hong Wang  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00743J

pH-independent optical sensing of heparin based on ionic liquid-capped gold nanoparticles
Bahram Hemmateenejad, Samira Dorostkar, Fatemeh Shakerizadeh-Shirazi and  Mojtaba Shamsipur  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36895E

β-Turn sequences promote stability of peptide substrates for kinases within the cytosolic environment
Shan Yang, Angela Proctor, Lauren L. Cline, Kaiulani M. Houston, Marcey L. Waters and Nancy L. Allbritton 
Analyst, 2013,138, 4305-4311
DOI: 10.1039/C3AN00874F

Identification of collagen-based materials in cultural heritage
Daniel P. Kirby, Michael Buckley, Ellen Promise, Sunia A. Trauger and  T. Rose Holdcraft  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00925D

Systematic study of terahertz time-domain spectra of historically informed black inks
Tiphaine Bardon, Robert K. May, Philip F. Taday and Matija Strlič 
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00331K

The Detroit Institute of Arts' Komo mask. Image courtesy of the DIA.

Typically dried or degraded blood samples at crime scenes are positively identified via a catalytic reaction with the haem protein, which produces a colored signal or interacts uniquely with light. In addition to blood, other proteins can undergo the same reaction, yielding inaccurate results. This high failure rate makes these tests unreliable and requires further analysis in a laboratory.

Conservators at the Detroit Art Institute in collaboration with chemistry researchers in the US used direct real time mass spectrometry (DART-MS) for the detection of degraded blood samples. This required little sample preparation, when compared to other standard conservation techniques such as HPLC and GC-MS, and identified the haem protein in the coating of an African Komo mask. In addition to cultural artifacts, this methodology can potentially be applied in forensic investigations. The authors detected haem peaks from both myoglobin and haemoglobin quickly and with greater specificity than the simple techniques described previously.

To know more, please access the link below. This paper will be free to read until July 25th.

Characterization of blood in an encrustation on an African mask: spectroscopic and direct analysis in real time mass spectrometric identification of haem
Daniel Fraser, Cathy Selvius DeRoo, Robert B. Cody and   Ruth Ann Armitage  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00633F

Take a look at our new HOT articles just published in Analyst!

These papers will be free for you to read until July 25^th. Have a read now!
 
Real time monitoring of population dynamics in concurrent bacterial growth using SIFT-MS quantification of volatile metabolites
Kristýna Sovová, Jaroslav Čepl, Anton Markošc and Patrik Španěl  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00472D

A new method to measure oxygen solubility in organic solvents through optical oxygen sensing
Michela Quaranta, Michael Murkovic and Ingo Klimant   
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN36782G

Nano-particle modified stationary phases for high-performance liquid chromatography
Ekaterina P. Nesterenko, Pavel N. Nesterenko, Damian Connolly, Xiaoyun He, Patrick Floris, Emer Duffy and Brett Paull   
Analyst, 2013,138, 4229-4254
DOI: 10.1039/C3AN00508A
 
Electrochemical detection of chloride levels in sweat using silver nanoparticles: a basis for the preliminary screening for cystic fibrosis
Her Shuang Toh, Christopher Batchelor-McAuley, Kristina Tschulika and Richard G. Compton  
Analyst, 2013,138, 4292-4297
DOI: 10.1039/C3AN00843F

Multiplexed detection of microRNAs by tuning DNA-scaffolded silver nanoclusters
Min Zhang, Yu-Qiang Liu, Cui-Yuan Yu, Bin-Cheng Yin and Bang-Ce Ye  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00666B

Mapping of egg yolk and animal skin glue paint binders in Early Renaissance paintings using near infrared reflectance imaging spectroscopy
Kathryn A. Dooley, Suzanne Lomax, Jason G. Zeibel, Costanza Miliani, Paola Ricciardi, Ann Hoenigswald, Murray Loew and  John K. Delaney  
Analyst, 2013, Advance Article
DOI: 10.1039/C3AN00926B