PMID- 35398263
OWN - NLM
STAT- MEDLINE
DCOM- 20220608
LR  - 20220608
IS  - 1873-1597 (Electronic)
IS  - 1572-1000 (Linking)
VI  - 38
DP  - 2022 Jun
TI  - Effect of light-dark conditions on inhibition of Gram positive and gram negative 
      bacteria and dye decomposition in the presence of photocatalyst Co/ZnO 
      nanocomposite synthesized by ammonia evaporation method.
PG  - 102853
LID - S1572-1000(22)00141-7 [pii]
LID - 10.1016/j.pdpdt.2022.102853 [doi]
AB  - Environmental pollution and various bacterial strains cause severe health 
      problems. Thus a need exists to synthesize new materials and develop new 
      techniques which can be used against these hazardous pathogens and components. In 
      this research work, sustainable and effective Co/ZnO nanocomposites were prepared 
      via a new hydrothermal technique and ammonia evaporation method. The synthesized 
      nanomaterial was analytically characterized through various techniques such as 
      X-ray diffraction (XRD), UV-vis spectroscopy, Scanning electron microscope (SEM), 
      High transmission electron microscopy (HRTEM), Fourier transform infrared 
      spectroscopy (FTIR), Energy-dispersive X-ray spectroscopy (EDX) and X-ray 
      photoelectron spectroscopy (XPS). The as prepared nanocomposite was tested for 
      photodegradation of methylene blue (MB). This test was performed both in visible 
      light and in dark condition. The results demonstrate that the said material is 
      more efficient in light compared to dark conditions and decomposed more than 80% 
      MB dye only in 60 min. The synthesized nanomaterial Co/ZnO was also tested 
      against highly drug resistant bacteria Escherichia coli and Staphylococcus aureus 
      both in light and dark. Hence, the antibacterial assessment indicates the zone of 
      inhibition in visible light of Co/ZnO counter with Escherichia coli is 15 (+/-0.2) 
      and for Staphylococcus aureus is 18 (+/-0.4) mm and in dark for Escherichia coli is 
      11 (+/-0.6) and for Staphylococcus aureus is 14 (+/-0.1) mm. Moreover, the detail 
      mechanism, reactive oxygen species production and bacterial surface damage were 
      also observed. We demonstrate that Co/ZnO nanomaterial is stable, eco-friendly 
      photocatalyst shows high strength against MB degradation and also shows strong 
      inhibition effect against pathogens in visible light.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Alam, Naila
AU  - Alam N
AD  - Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan.
FAU - Tahir, Kamran
AU  - Tahir K
AD  - Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan. 
      Electronic address: dr.kami.gu@gmail.com.
FAU - Nazir, Sadia
AU  - Nazir S
AD  - Institute of Chemical Sciences, Gomal University, D. I. Khan, KP, Pakistan.
FAU - Khan, Afaq Ullah
AU  - Khan AU
AD  - State Key Laboratory of Chemical Resource Engineering, School of Science, Beijing 
      University of Chemical Technology, Beijing 100029, PR China.. Electronic address: 
      afaqchemist@gmail.com.
FAU - Albalawi, Karma
AU  - Albalawi K
AD  - Department of Chemistry, Faculty of Science, Tabuk University, Tabuk, Saudi 
      Arabia.
FAU - Refat, Moamen S
AU  - Refat MS
AD  - Department of Chemistry, College of Science, Taif University, P.O. Box 11099, 
      Taif 21944, Saudi Arabia.
FAU - Almarhoon, Zainab M
AU  - Almarhoon ZM
AD  - Chemistry department, College of Science, King Saud University, P. O. Box 2455, 
      Riyadh, 11451, Saudi Arabia.
FAU - Jevtovic, Violeta
AU  - Jevtovic V
AD  - Department of Chemistry, College of Science, University of Hail, Kingdom of Saudi 
      Arabia.
FAU - Al-Shehri, Hamza S
AU  - Al-Shehri HS
AD  - Chemistry Division, King Khalid Military Academy, SANG, 1149, Riyadh, Saudi 
      Arabia.
FAU - Aldawsari, Afrah Mohammed
AU  - Aldawsari AM
AD  - Chemistry Department, Faculty of Applied Science, Umm Al Qura University, Makkah, 
      Saudi Arabia; The Centre of Excellence for Petrochemicals, King Abdulaziz City 
      for Science and Technology, P. O. Box 6086, Riyadh 11442, Kingdom of Saudi 
      Arabia.
LA  - eng
PT  - Journal Article
DEP - 20220406
PL  - Netherlands
TA  - Photodiagnosis Photodyn Ther
JT  - Photodiagnosis and photodynamic therapy
JID - 101226123
RN  - 0 (Anti-Bacterial Agents)
RN  - 7664-41-7 (Ammonia)
RN  - SOI2LOH54Z (Zinc Oxide)
RN  - T42P99266K (Methylene Blue)
SB  - IM
MH  - Ammonia/pharmacology
MH  - Anti-Bacterial Agents/chemistry/pharmacology
MH  - Escherichia coli
MH  - Gram-Negative Bacteria
MH  - Gram-Positive Bacteria
MH  - Humans
MH  - Methylene Blue/chemistry/pharmacology
MH  - *Nanocomposites/chemistry
MH  - *Photochemotherapy/methods
MH  - *Staphylococcal Infections
MH  - Staphylococcus aureus
MH  - *Zinc Oxide/pharmacology
OTO - NOTNLM
OT  - Antibacterial activity
OT  - Co/ZnO
OT  - Dyes degradation
OT  - ammonia evaporation method
EDAT- 2022/04/11 06:00
MHDA- 2022/06/09 06:00
CRDT- 2022/04/10 20:24
PHST- 2022/01/20 00:00 [received]
PHST- 2022/03/02 00:00 [revised]
PHST- 2022/04/03 00:00 [accepted]
PHST- 2022/04/11 06:00 [pubmed]
PHST- 2022/06/09 06:00 [medline]
PHST- 2022/04/10 20:24 [entrez]
AID - S1572-1000(22)00141-7 [pii]
AID - 10.1016/j.pdpdt.2022.102853 [doi]
PST - ppublish
SO  - Photodiagnosis Photodyn Ther. 2022 Jun;38:102853. doi: 
      10.1016/j.pdpdt.2022.102853. Epub 2022 Apr 6.