Synthesis evidence

Construction of nanozyme based with mixed valence manganese oxide loaded on defective metal-organic frameworks for sensitive detection of biomarker procalcitonin

Deng S., Hao Y., Yang L. et al. · Biosensors and Bioelectronics · 2025 · 117339

11 structured synthesis routes

Completeness describes how fully the route could be reconstructed from the main article and supporting information.

Complete recipeSource: SI

Route 1: Other

SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP

Metal precursorsmagnetic balls (MBs), 5.00 mg
SolventsPBS buffer, 2.0 mL; PBST wash buffer; BSA storage/blocking solutions
AdditivesEDC 100 uL of 10.0 mg mL-1; NHS 50.0 uL of 10.0 mg mL-1; Ab1 20.0 uL of 5.00 mg mL-1; BSA 3.0% and 0.10%
Atmospherenot stated
TemperatureRT for activation/incubation; 4 C storage
Time0.5 h EDC/NHS activation; 1 h Ab1 incubation; 0.5 h BSA blocking
Work-upCarboxyl-activated MBs washed twice with PBS using a magnet; after Ab1 incubation, washed three times with PBST; after BSA blocking, washed three times with PBST.
ActivationEDC/NHS activation of carboxylated MBs for 30 min; BSA blocking after antibody conjugation.
Scalability contextSmall-batch bioconjugation in PBS.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
Othermagnetic balls (MBs)5.00 mgSI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherPBS buffer2.0 mLSI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
AdditiveEDC100 uL · 10.0 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
AdditiveNHS50.0 uL · 10.0 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherPCT capture antibody (Ab1)20.0 uL · 5.00 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherBSA solution2.0 mL blocking; 1.0 mL storage · 3.0%; 0.10%SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
Complete recipeSource: SI

Route 2: Other

SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP

Metal precursorsMdP nanozyme, 10.0 mg
SolventsPBS buffer, 2.0 mL; PBST wash buffer; BSA storage/blocking solutions
AdditivesEDC 100 uL of 10.0 mg mL-1; NHS 50.0 uL of 10.0 mg mL-1; Ab2 40.0 uL of 5.00 mg mL-1; BSA 3.0% and 0.10%
Atmospherenot stated
TemperatureRT for EDC/NHS activation and antibody incubation; 4 C storage
Time0.5 h EDC/NHS activation; 1 h Ab2 incubation; 0.5 h BSA blocking
Work-upAfter EDC/NHS activation, wash twice with PBS by centrifugation (8000 rpm, 10 min); after Ab2 incubation, remove unbound Ab2 by washing three times with PBST (8000 rpm, 10 min); after BSA blocking, wash twice with PBST.
ActivationEDC/NHS activation in PBS for 30 min; BSA blocking after antibody conjugation.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherMdP particles10.0 mgSI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherPBS buffer2.0 mLSI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
AdditiveEDC100 uL · 10.0 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
AdditiveNHS50.0 uL · 10.0 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherPCT detection antibody (Ab2)40.0 uL · 5.00 mg mL-1SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
OtherBSA solution2.0 mL blocking; 1.0 mL storage · 3.0%; 0.10%SI text · 1.2 Preparation procedures of Ab1-MBs and Ab2-MdP
Complete recipeSource: Main

Route 3: Solvothermal

2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP

Metal precursorsZrCl4, 400 mg
Linker precursorsTCPP, 50.0 mg
SolventsDMF, 60 mL initially; 60 mL DMF for HCl activation dispersion
Additivesdodecanoic acid (DA), 32.0 g; hydrochloric acid, 1.30 mL of 12 M
Atmospherenot stated
Temperature120
Time36 h solvothermal growth; 12 h HCl activation
Work-upCool; centrifuge at 8000 rpm for 10 min; wash three times with DMF; after HCl activation centrifuge, wash three times with DMF.
ActivationHCl activation in DMF at 120 C for 12 h; dried at 60 C in vacuum oven for 24 h.
Scalability contextBatch solvothermal synthesis in 200 mL PTFE-lined vessel.
Show 5 structured reagent records
RoleReagentAmount / concentrationSource
Metal SourceZrCl4400 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
LinkerTCPP50.0 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
SolventDMF60 mL + 60 mL2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Additivedodecanoic acid (DA)32.0 g2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Acidhydrochloric acid1.30 mL · 12 M2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Partial recipeSource: Both

Route 4: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 4 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl24 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Partial recipeSource: Both

Route 5: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 8 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl28 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Partial recipeSource: Both

Route 6: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 12 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl212 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Partial recipeSource: Both

Route 7: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 16 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl216 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Partial recipeSource: Both

Route 8: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 20 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl220 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Partial recipeSource: Both

Route 9: Hydrothermal

14 · Figures and Tables · Table S2

Metal precursorsdPCN-224 nanoparticle, 40.0 mg inferred from base MdP route; MnCl2 additive, 24 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater; ethanol wash
AdditivesNH4Cl and NH3.H2O follow base MdP route unless varied; Table S2 reports MnCl2 amount only
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantHydrothermal conversion of MnCl2 in basic ammonium solution to Mn oxide-loaded dPCN; explicit oxidant not stated.
Work-upBase MdP route: cool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationBase MdP route: dried at 60 C in a vacuum oven for 24 h.
Scalability contextSmall batch hydrothermal variant series.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN-224 nanoparticle40.0 mg in base route14 · Figures and Tables · Table S2
Metal SourceMnCl224 mg14 · Figures and Tables · Table S2
AdditiveNH4Cl963 mg in base route14 · Figures and Tables · Table S2
BaseNH3.H2O700 uL in base route14 · Figures and Tables · Table S2
Solventwater30.0 mL total in base route14 · Figures and Tables · Table S2
SolventEtOHwash solvent14 · Figures and Tables · Table S2
Complete recipeSource: Main

Route 10: Hydrothermal

2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP

Metal precursorsMnCl2, 20.0 mg; dPCN nanoparticle, 40.0 mg
Linker precursorsdPCN-224 framework contains TCPP
Solventswater, 15.0 mL for dPCN dispersion and 15.0 mL for Mn salt solution; ethanol for washing
AdditivesNH4Cl, 963 mg; NH3.H2O, 700 uL
Atmospherenot stated
Temperature140
Time12 h hydrothermal; 10 min ultrasonication before heating
Oxidant / reductantDissolved MnCl2 converted in basic ammonium solution to mixed-valence Mn oxides during hydrothermal treatment; explicit oxidant not stated.
Work-upCool; centrifuge at 8000 rpm for 10 min; wash three times with water and EtOH.
ActivationDried at 60 C in a vacuum oven for 24 h.
Scalability contextBatch hydrothermal loading in 100 mL PTFE-lined vessel.
Show 6 structured reagent records
RoleReagentAmount / concentrationSource
OtherdPCN nanoparticle40.0 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Metal SourceMnCl220.0 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
AdditiveNH4Cl963 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
BaseNH3.H2O700 uL2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Solventwater30.0 mL total2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
SolventEtOHwash solvent2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Partial recipeSource: Main

Route 11: Solvothermal

2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP

Metal precursorsZrCl4, 400 mg
Linker precursorsTCPP, 50.0 mg
SolventsDMF, 60 mL
Additivesbenzoic acid (BA), 8.00 g
Atmospherenot stated
Temperature120
Time36 h growth; follow-on activation inferred from dPCN procedure
Work-upAuthors state following procedures were the same as dPCN-224 preparation.
ActivationSame as dPCN-224 procedure according to main text; exact repetition not restated.
Scalability contextBatch solvothermal synthesis.
Show 4 structured reagent records
RoleReagentAmount / concentrationSource
Metal SourceZrCl4400 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
LinkerTCPP50.0 mg2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
SolventDMF60 mL2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP
Additivebenzoic acid (BA)8.00 g2 · 2.2 Preparation of PCN-224, dPCN-224 and MdP