Dr. Birech Zephania
Dr. Birech Zephania
Laser Physics and Spectroscopy Lecturer, University of Nairobi
Verified email at uonbi.ac.ke - Homepage
Title
Cited by
Cited by
Year
Ultrafast dynamics of excitons in tetracene single crystals
Z Birech, M Schwoerer, T Schmeiler, J Pflaum, H Schwoerer
The Journal of chemical physics 140 (11), 114501, 2014
452014
Application of Raman spectroscopy in type 2 diabetes screening in blood using leucine and isoleucine amino-acids as biomarkers and in comparative anti-diabetic drugs efficacy …
B Zephania, M Peter, Waweru, B Fredrick, M Keith, Makori
PloS One 12 (9), 2017
252017
Conductive silver paste smeared glass substrates for label-free Raman spectroscopic detection of HIV-1 and HIV-1 p24 antigen in blood plasma
RR Ben O. Otange, Zephania Birech, Justus Okonda
Analytical and Bioanalytical Chemistry 409 (12), 3253–3259, 2017
152017
Estimation of HIV‐1 viral load in plasma of HIV‐1‐infected people based on the associated Raman spectroscopic peaks
B Otange, Z Birech, R Rop, J Oyugi
Journal of Raman Spectroscopy 50 (5), 620-628, 2019
82019
A multi-channel localized surface plasmon resonance system for absorptiometric determination of abscisic acid by using gold nanoparticles functionalized with a polyadenine …
S Wang, H Zhang, W Li, Z Birech, L Ma, D Li, S Li, L Wang, J Shang, J Hu
Microchimica Acta 187 (1), 1-9, 2020
62020
Utility of Raman spectroscopy in diabetes detection based on biomarker Raman bands and in antidiabetic efficacy studies of herbal extract Rotheca myricoides Hochst
BM Chege, Z Birech, PW Mwangi, FO Bukachi
Journal of Raman Spectroscopy 50 (10), 1358-1366, 2019
62019
Effect of crusting operations on the physical properties of leather
KM Nalyanya, RK Rop, A Onyuka, Z Birech, A SASIA
Leather Footw J 18, 283-294, 2018
52018
Recent use of selected phytochemistry to mitigate environmental challenges facing leather tanning industry: a review
KM Nalyanya, R Rop, A Onyuka, Z Birech
Phytochemistry Reviews 18 (5), 1361-1373, 2019
42019
Multi-channel optoelectronic measurement system for soil nutrients analysis
L Ma, Z Li, Z Birech, S Li, Y Yang, W Zhang, J Hu
Electronics 8 (4), 451, 2019
32019
Study of anti-tuberculosis activity behaviour of natural kaurane and trachylobane diterpenes compared with structural properties obtained by theoretical calculations
ACF Soares, MMW Cabral, CHG Martins, AE Ferreira, PAS Bergamo, ...
Natural product communications 12 (5), 1934578X1701200521, 2017
32017
An efficient LSPR method to quantitatively detect dimethoate: Development, characterization and evaluation
D Li, Y Zhang, Q Guo, X Sun, H Zhang, S Wang, Z Birech, J Hu
Plos one 15 (9), e0239632, 2020
22020
Variation of elemental concentration in leather during post-tanning operation using energy dispersive X-ray fluorescence spectroscopy: principal component analysis approach
KM Nalyanya, RK Rop, AS Onyuka, Z Birech, JJ Okonda
International Journal of Environmental Analytical Chemistry, 1-13, 2020
22020
Application of Raman spectroscopy in detection of Aflatoxin B1 in maize kernels
KK M. S. Taabu, Z. Birech
2015 Conference on Lasers and Electro-Optics Pacific Rim, 27P_27, 2015
2*2015
Davydov splitting in triplet excitons of tetracene single crystals
Z Birech, M Schwoerer, J Pflaum, H Schwoerer
Frontiers in Optics, FTu1G. 8, 2014
22014
Low cost Raman sample substrates from conductive silver paint smear for Raman spectroscopic screening of metabolic diseases in whole blood
Z Birech, AM Ondieki, RII Opati, PW Mwangi
Vibrational Spectroscopy 108, 103063, 2020
12020
Application of Raman spectroscopy in comparative study of antiobesity influence of oxytocin and freeze‐dried extracts of Uvariodendron anisatum Verdeck (Annonaceae) in Sprague …
Z Birech, PW Mwangi, PK Sehmi, NM Nyaga
Journal of Raman Spectroscopy 51 (3), 398-405, 2020
12020
Investigating mechanical properties of leather treated with Aloe barbadensis Miller and Carrageenan using existing theoretical models
KM Nalyanya, RK Rop, A Onyuka, Z Birech, A Sasia
Polymer Bulletin 76 (12), 6123-6136, 2019
12019
Application of butterfly wing iridescence, reflection spectroscopy, and chemometric tools in adulteration sensing in gasoline
M Nancy, Z Birech, K Kaduki
Laser Science, JTu4A. 13, 2019
12019
Raman Spectroscopic comparative study of Oxytocin and Freeze-dried Extract of Uvariodendron anisatum Verdeck (Annonaceae) and their influence on diet induced obesity in Sprague …
Z Birech, PK Sehmi, PW Mwangi, NM Nyaga
BioRxiv, 523555, 2019
12019
Label-free surface-enhanced Raman spectroscopic detection of HIV-1 infection in blood and plasma adsorbed on conductive silver pasted glass substrate
B Otange, Z Birech, R Rop, J Oyugi
Egerton University, 1930
11930
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Articles 1–20