Spora hosil qiluvchi bakteriyalarni alyuminiy oksidli yangi avlod sorbentlariga immobillash orqali ularning yashovchanlik ko‘rsatkichlarini baholash

Assessment of the viability of spore-forming bacteria immobilized on new-generation aluminium oxide sorbents

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Published: 2026-10-30
DOI: https://doi.org/10.66073/ReFocus-Conf/3010092
Keywords:
Bacillus subtilis, aluminium oxide, micro-arc oxidation (MAO), sorption, immobilization, desorption, viability

Main Article Content

Turdibekova Ozoda Jumanazar kizi
National University of Uzbekistan named after Mirzo Ulugbek
Akhmedova Zahro Rakhmatovna
Institute of Microbiology of the Academy of Sciences of the Republic of Uzbekistan
Abdullayeva Yulduz Alisher kizi
Institute of Microbiology of the Academy of Sciences of the Republic of Uzbekistan

Abstract

This study investigated the efficiency of new-generation aluminium oxide sorbents (AlMg6, D16 and ZnAl(O,Si)) of different porosity and chemical composition, obtained by micro-arc oxidation (MAO), in binding (immobilizing) microorganisms and maintaining their viability. Spore-forming Bacillus subtilis bacteria were selected as the model microorganism. Sorption capacity was assessed by counting the cells remaining free after contact, and post-desorption viability by colony-forming unit (CFU) counts on nutrient agar. The results showed that aluminium oxide sorbents have a high sorption capacity (75% for AlMg6) and retain bacterial viability at 88–93% after desorption, compared with 82% in the control.

Article Details

Issue

Vol. 1 No. 8 (2026): Status and Development Prospects of Fundamental and Applied Microbiology: The Viewpoint of Young Scientists

Section

Soil, Water, Ecological and Sanitary Microbiology
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Turdibekova Ozoda Jumanazar kizi, Akhmedova Zahro Rakhmatovna, & Abdullayeva Yulduz Alisher kizi. (2026). Assessment of the viability of spore-forming bacteria immobilized on new-generation aluminium oxide sorbents. Partner Conferences of the International Scientific Journal Research Focus, 1(8), 334-337. https://doi.org/10.66073/ReFocus-Conf/3010092

References

Feng G., Cheng Y., Wang S.-Y., Hsu L.C., Feliz Y., Borca-Tasciuc D.A., Worobo R.W., Moraru C.I. Alumina surfaces with nanoscale topography reduce attachment and biofilm formation by Escherichia coli and Listeria spp. // Biofouling. — 2014. — Vol. 30, No. 10. — P. 1253–1268. DOI: 10.1080/08927014.2014.976561 DOI: https://doi.org/10.1080/08927014.2014.976561

Bos R., van der Mei H.C., Busscher H.J. Physico-chemistry of initial microbial adhesive interactions — its mechanisms and methods for study // FEMS Microbiology Reviews. — 1999. — Vol. 23, No. 2. — P. 179–230. DOI: 10.1016/S0168-6445(99)00004-2 DOI: https://doi.org/10.1016/S0168-6445(99)00004-2

Van Loosdrecht M.C.M., Norde W., Zehnder A.J.B. Physical chemical description of bacterial adhesion // Journal of Biomaterials Applications. — 1990. — Vol. 5, No. 2. — P. 91–106. DOI: 10.1177/088532829000500202 DOI: https://doi.org/10.1177/088532829000500202

Wang Y., Lee S.M., Dykes G. The physicochemical process of bacterial attachment to abiotic surfaces: challenges for mechanistic studies, predictability and the development of control strategies // Critical Reviews in Microbiology. — 2015. — Vol. 41, No. 4. — P. 452–464. DOI: 10.3109/1040841X.2013.866072 DOI: https://doi.org/10.3109/1040841X.2013.866072

Kreve S., Dos Reis A.C. Effect of surface properties of ceramic materials on bacterial adhesion: a systematic review // Journal of Esthetic and Restorative Dentistry. — 2022. — Vol. 34, No. 3. — P. 461–472. DOI: 10.1111/jerd.12799 DOI: https://doi.org/10.1111/jerd.12799

Akhmedova Z., Tonkikh A., Shonakhunov T., Ibragimov A., Yakhyaeva M., Khamraeva Z., Gulyamova I., Kadirova G., Verushkina O. Immobilization of microorganisms on solid sorbents of a new generation obtained on the basis of aluminum oxide via micro-arc oxidation // Journal of Microbiology, Biotechnology and Food Sciences. — 2026. — Vol. 15, No. 6. — e14060. DOI: 10.55251/jmbfs.14060 DOI: https://doi.org/10.55251/jmbfs.14060

Ахмедова З.Р., Шонахунов Т.Э., Ибрагимов А.А., Хамраева З.Т., Яхяева М.А., Гулямова И.Т. Оптимизация структуры и фазового состава композиционного оксидного покрытия на алюминии как перспективного сорбента микробиологических объектов и материала с модифицированным высвобождением: монография. — Ташкент, 2026. — 178 с.