Spectrum Analysis, Raman

Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

A green one step facile synthesis of graphene nanosheets by Terminalia chebula (T. chebula) extract mediated reduction of graphite oxide (GO) is reported in this work. This method avoids the use of harmful toxic reducing agents. The comparative results of various characterizations of GO and T. chebula reduced graphene oxide (TCG) provide a strong indication of the exclusion of oxygen containing groups from graphene oxide and successive stabilization of the formed reduced graphene oxide (RGO).

Author(s): 
Maddinedi, Sireesh Babu
Mandal, Badal Kumar
Vankayala, Raviraj
Kalluru, Poliraju
Pamanji, Sreedhara Reddy
Publication Title: 
Neurotoxicology

Boron-containing compounds (BCCs), particularly boron containing acids (BCAs), have become attractive moieties or molecules in drug development. It has been suggested that when functional groups with boron atoms are added to well-known drugs, the latter are conferred with greater potency and efficacy in relation to their target receptors. However, the use of BCAs in drug development is limited due to the lack of a toxicological profile. Consequently, the aim of the present study was to evaluate the acute toxicity of boric and boronic acids.

Author(s): 
Soriano-Ursúa, Marvin A.
Farfán-García, Eunice D.
López-Cabrera, Yessica
Querejeta, Enrique
Trujillo-Ferrara, José G.
Publication Title: 
FEBS letters

Fourier transform infrared (FTIR) and resonance Raman (RR) spectroscopies have been employed to investigate the reductive cleavage of the O-O bond of the endoperoxide moiety of the antimalarial drug artemisinin and its analog trioxane alcohol by hemin dimer. We have recorded FTIR spectra in the nu(O-O) and nu(as)(Fe-O-Fe) regions of artemisinin and of the hemin dimer that show the cleavage of the endoperoxide and that of the hemin dimer, respectively. We observed similar results in the trioxane alcohol/hemin dimer reaction.

Author(s): 
Kapetanaki, S.
Varotsis, C.
Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

R-(+)-Pulegone is a natural monoterpene obtained from the essential oils of a variety of plants. It is used in flavouring agents, perfumery and aromatherapy. In this work, a study of the molecular structure and the infrared and Raman spectra of this chemical is presented. Theoretical calculations reveal the existence of two conformers depending on the position of the methyl group (axial and equatorial), being the equatorial conformer the most stable.

Author(s): 
Aviles-Moreno, Juan Ram�n
Ure�a Horno, Elena
Partal Ure�a, Francisco
L�pez Gonz�lez, Juan Jes�s
Publication Title: 
Analytical Sciences: The International Journal of the Japan Society for Analytical Chemistry

Illegal chemicals, which could cause unpredictable side effects, may be added into traditional Chinese medicine (TCM) for a rapid healing effect. In this report, a surface-enhanced Raman scattering (SERS) analysis method for five kinds of illegally added drugs (rosiglitazone maleate, phenformin hydrochloride, metformin hydrochloride, pioglitazone hydrochloride and sibutramine hydrochloride) in Chinese traditional patent medicine (CTPM) has been demonstrated, including simultaneous detections of drug mixtures with CTPM.

Author(s): 
Zhang, Yan
Huang, Xiaoyan
Liu, Wenfang
Cheng, Zeneng
Chen, Chuanpin
Yin, Lihui
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