PMID- 33255349
OWN - NLM
STAT- MEDLINE
DCOM- 20210409
LR  - 20210409
IS  - 1420-3049 (Electronic)
IS  - 1420-3049 (Linking)
VI  - 25
IP  - 23
DP  - 2020 Nov 24
TI  - Microbiologically Induced Carbonate Precipitation in the Restoration and 
      Conservation of Cultural Heritage Materials.
LID - 10.3390/molecules25235499 [doi]
LID - 5499
AB  - Microbiologically induced carbonate precipitation (MICP) is a well-known 
      biogeochemical process that allows the formation of calcium carbonate deposits in 
      the extracellular environment. The high concentration of carbonate and calcium 
      ions on the bacterial surface, which serves as nucleation sites, promotes the 
      calcium carbonate precipitation filling and binding deteriorated materials. 
      Historic buildings and artwork, especially those present in open sites, are 
      susceptible to enhanced weathering resulting from environmental agents, 
      interaction with physical-chemical pollutants, and living organisms, among 
      others. In this work, some published variations of a novel and ecological surface 
      treatment of heritage structures based on MICP are presented and compared. This 
      method has shown to be successful as a restoration, consolidation, and 
      conservation tool for improvement of mechanical properties and prevention of 
      unwanted gas and fluid migration from historical materials. The treatment has 
      revealed best results on porous media matrixes; nevertheless, it can also be 
      applied on soil, marble, concrete, clay, rocks, and limestone. MICP is proposed 
      as a potentially safe and powerful procedure for efficient conservation of 
      worldwide heritage structures.
FAU - Ortega-Villamagua, Erick
AU  - Ortega-Villamagua E
AD  - Grupo de Investigacion Aplicada en Materiales y Procesos (GIAMP), School of 
      Chemical Sciences and Engineering, Yachay Tech University, Hda. San Jose s/n y 
      Proyecto Yachay, Urcuqui 100119, Ecuador.
FAU - Gudino-Gomezjurado, Marco
AU  - Gudino-Gomezjurado M
AUID- ORCID: 0000-0002-8609-0806
AD  - School of Biological Sciences and Engineering, Yachay Tech University, Hda. San 
      Jose s/n y Proyecto Yachay, Urcuqui 100119, Ecuador.
FAU - Palma-Cando, Alex
AU  - Palma-Cando A
AUID- ORCID: 0000-0002-9270-9599
AD  - Grupo de Investigacion Aplicada en Materiales y Procesos (GIAMP), School of 
      Chemical Sciences and Engineering, Yachay Tech University, Hda. San Jose s/n y 
      Proyecto Yachay, Urcuqui 100119, Ecuador.
LA  - eng
GR  - Chem19-08, Chem19-17/University Yachay Tech/
PT  - Journal Article
PT  - Review
DEP - 20201124
PL  - Switzerland
TA  - Molecules
JT  - Molecules (Basel, Switzerland)
JID - 100964009
RN  - 0 (Carbonates)
RN  - 8W8T17847W (Urea)
RN  - H0G9379FGK (Calcium Carbonate)
SB  - IM
MH  - Bacteria/metabolism
MH  - Calcium Carbonate/chemistry
MH  - Carbonates/*chemistry
MH  - Chemical Phenomena
MH  - *Chemical Precipitation
MH  - Hydrolysis
MH  - *Microbiological Phenomena
MH  - Models, Theoretical
MH  - Spectrum Analysis
MH  - Tomography, X-Ray Computed
MH  - Urea/chemistry
PMC - PMC7727839
OTO - NOTNLM
OT  - calcium carbonate
OT  - conservation
OT  - cultural heritage
OT  - microbiologically induced carbonate precipitation (MICP)
OT  - restoration
COIS- The authors declare no conflict of interest.
EDAT- 2020/12/02 06:00
MHDA- 2021/04/10 06:00
PMCR- 2020/11/24
CRDT- 2020/12/01 01:08
PHST- 2020/06/30 00:00 [received]
PHST- 2020/07/17 00:00 [revised]
PHST- 2020/07/19 00:00 [accepted]
PHST- 2020/12/01 01:08 [entrez]
PHST- 2020/12/02 06:00 [pubmed]
PHST- 2021/04/10 06:00 [medline]
PHST- 2020/11/24 00:00 [pmc-release]
AID - molecules25235499 [pii]
AID - molecules-25-05499 [pii]
AID - 10.3390/molecules25235499 [doi]
PST - epublish
SO  - Molecules. 2020 Nov 24;25(23):5499. doi: 10.3390/molecules25235499.