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Boric acid

Boric acid is a widely used chemical compound with a variety of applications in research, industry, and healthcare.
It is a weak acid composed of boron, hydrogen, and oxygen, and is known for its antiseptic, insecticidal, and antifungal properties.
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Most cited protocols related to «Boric acid»

1
Multiscale DNA Nanostructure Fabrication and Characterization
PEG precipitation: Self-assembly reaction mixtures at 20 mm MgCl2 were mixed 1:1 (v/v) with precipitation buffer containing 15 % PEG 8000 (w/v) (Ph.Eur.), 5 mm Tris, 1 mm EDTA, and 505 mm NaCl (all chemicals from Carl Roth, Karlsruhe, Germany). The solution was mixed by tube inversion and spinned at 16 000 g, at room temperature (RT) for 25 min using a microcentrifuge (Eppendorf 5420, Hamburg, Germany). The supernatant was removed using a pipette. The pellet was dissolved in target buffer as indicated for each set of experiments and incubated for approximately 20 h at RT or 30 °C.
DNA object self-assembly: Structures were designed using caDNAno v0.2.19 (link) DNA scaffold strands of 7249, 7560, 7704, and 8064 bases length derived from the genome of bacteriophage M13 were used for assembly reactions.2b (link) Staple oligonucleotide strands were prepared by solid-phase chemical synthesis (Eurofins MWG, Ebersberg, Germany, HPSF grade). Production of DNA objects was accomplished in one-pot reaction mixtures containing scaffold DNA at a concentration of 20 nm (default) or 50 nm (pointer in Figure S1, RR in Figures 3 and S8, 24 hb, 42 hb, 100 hb), staple DNA oligonucleotides at 200 nm each, and 5 mm TRIS, 1 mm EDTA, 20 mm MgCl2, and 5 mm NaCl (pH 8). The reaction mixtures were subjected to a thermal annealing protocol using TETRAD (Biorad) thermal cycling devices. The mixtures were first incubated at 65 °C for 15 min and then annealed from 60 to 40 °C in steps of 1 °C per 2–3 h. The reaction products were stored at RT.
Agarose gel electrophoresis: Electrophoresis of the folded DNA objects was carried out in 2 % agarose gels containing electrophoresis buffer (1 mm EDTA, 44.5 mm Tris base, 44.5 mm boric acid, and 11 mm MgCl2, pH 8.4). The samples were electrophoresed for two hours at 70–90 V in a water-cooled gel box filled with electrophoresis buffer. The gels typically contained ethidium bromide at a concentration of 1 μm. The agarose gels were scanned using a Typhoon 9500 FLA laser scanner (GE Healthcare) at a resolution of 50 μm/px (ethidium bromide: excitation at 535 nm, emission> 575 nm; fluorescein: excitation at 473 nm, emission 520–540 nm) to give 16-bit tif image files, which we analyzed using ImageJ64 V1.47 (U.S. National Institutes of Health). Cross-sectional lane intensity profiles were computed by averaging over grayscale values within a 20–75 pixel wide box drawn over the lane of interest. After linear background correction, the regions of interest were quantified by integrating the area under the peaks. Yields were estimated by comparing the intensity of bands of interest for treated versus untreated samples.
Negative-staining TEM: Samples were adsorbed on glow-discharged formvar-supported carbon-coated Cu400 TEM grids (Science Services, Munich) and stained using a 2 % aqueous uranyl formate solution containing 25 mm sodium hydroxide. Imaging was performed using a Philips CM100 EM operated at 100 kV. Images were acquired using an AMT 4 Megapixel CCD camera. Micrograph scale bars were calibrated by imaging 2D catalase crystals and using the lattice constants as length reference. Imaging was performed at ×28 500 magnification.
Stahl E., Martin T.G., Praetorius F, & Dietz H. (2014). Facile and Scalable Preparation of Pure and Dense DNA Origami Solutions. Angewandte Chemie (International Ed. in English), 53(47), 12735-12740.
Publication 2014
2
CLARITY Hydrogel-based Tissue Clearing Protocol
Hydrogel solution preparation: (1) Combine and mix 40 ml of acrylamide (40%), 10 ml of bis-acrylamide (2%), 1g of VA-044 initiator (10% wt), 40 ml of ×10 PBS, 100 ml of 16% PFA and 210 ml of dH2O with special attention to temperature and safety precautions. Keep all components on ice at all times to prevent polymerization. Caution: PFA is an irritant, sensitizer, carcinogen and toxin. Acrylamide is a potent neurotoxin, a respiratory and skin sensitizer, carcinogen, irritant, mutagen, teratogen and reproductive hazard. Many of the chemical constituents of hydrogels that could be used for CLARITY would fall into one or more of these categories. Therefore, to avoid skin contact or inhalation of monomers and/or crosslinkers (for example, acrylamide or PFA), solution preparation and all subsequent handling of hydrogel solution and polymer must be conducted in a fume hood with personal protective equipment including face shield, laboratory coat, gloves and closed-toe shoes.
Saponin is a widely used mild non-ionic surfactant often used to permeabilize cellular membranes in conventional immunohistochemistry. In CLARITY, saponin can be used in the hydrogel monomer infusion process to facilitate diffusion of the hydrogel monomer and initiator into the tissue, particularly for samples in which cardiac perfusion is not feasible, such as post-mortem human tissues and zebrafish brains. Saponin shortens incubation time required in the hydrogel monomer infusion process. However, bubbles may form that could be linked to saponin use, so routine saponin is not suggested. (2) Distribute 40-ml aliquots into 50-ml conical tubes on ice. Each tissue sample will require the use of one 40-ml tube: 20 ml for perfusion and the remaining 20 ml for sample embedding. (3) Seal tubes tightly and keep in secondary containment (on ice) before removing them from the hood. Transfer aliquots from ice to −20 °C. Store these solutions at −20 °C until they are ready to be used. They can be stored at −20 °C indefinitely if all components were kept sufficiently cold during the preparation process.
Solution preparation: (1) Combine and mix 123.66 g boric acid, 400 g sodium dodecyl sulphate, and 9 l dH2O. To avoid skin contact or inhalation, prepare solution in a fume hood in proper PPE. Paying special attention to safety, combine water, boric acid and SDS while stirring. Add dH2O to 10 l and add NaOH until the pH has reached 8.5. This solution can be made, stored and used at room temperature (20 °C). Caution: SDS is a toxin and irritant to the skin and respiratory system.
Transcardial perfusion with hydrogel solution: (1) Before perfusing, thaw the frozen hydrogel monomer solution in the refrigerator or on ice. (2) When the solution is completely thawed and transparent (but still ice cold), gently invert to mix. Make sure that there is no precipitate and avoid introducing any bubbles into the solution. (3) Prepare perfusion materials within a fume hood. (4) Deeply anaesthetize adult mouse with Beuthanasia-D. (5) Perfuse the animal transcardially, first with 20 ml of ice-cold 1× PBS and then 20 ml of the ice-cold hydrogel solution. Maintain a slow rate of perfusion (about 2 min for the 20 ml of each solution). (6) Immediately place the tissue (for example, brain) in 20 ml cold hydrogel solution in a 50-ml conical tube. Keep the sample in solution on ice until it can be moved to a 4 °C refrigerator. (7) Cover sample in aluminium foil if it contains fluorophores and incubate at 4 °C for 2–3 days to allow for further diffusion of the hydrogel solution into the tissue.
Hydrogel tissue embedding: (1) De-gas the 50-ml conical tube containing the sample in the desiccation chamber (in a fume hood) to replace all of the gas in the tube with nitrogen (as oxygen impedes hydrogel formation), as follows: place the 50-ml conical tube on a rack in the desiccation chamber; twist the 50-ml conical tube open sufficiently to allow gas exchange; turn on the nitrogen tank and adjust the control valve such that the inlet to the desiccation chamber fills with nitrogen gas; switch the desiccation chamber valve from nitrogen gas flow to the vacuum. Turn on the vacuum pump; verify that the chamber is under full vacuum by testing the chamber lid. Keep vacuum on for 10 min; switch the vacuum off and slowly turn the valve to fill the chamber with nitrogen gas; carefully open the chamber just enough to reach the tubes while purging with nitrogen gas, taking great care to minimize exposure to air, and quickly and tightly close the sample tube. (2) Submerge the tube in 37 °C water bath in a 37 °C room or incubator on the rotator. Incubate for 3 h or until solution has polymerized. (3) In a fume hood, extract the embedded sample from the gel (carefully take the sample out and remove extra gel pieces with gloved fingers). Hydrogel waste disposal should be conducted in accordance with all institutional, state and country regulations for hydrogel monomers and crosslinkers (for example, acrylamide and PFA). (4) Wash the sample with 50 ml clearing solution for 24 h at room temperature to dialyse out extra PFA, initiator and monomer. Wash the sample twice more with 50 ml for 24 h, each at 37 °C to further reduce residual PFA, initiator and monomer. Take care to dispose of this waste solution carefully as a biohazard.
ETC: (1) Construct the ETC chamber as described (http://CLARITYresourcecenter.org): place the sample in the chamber, and circulate the clearing solution through the chamber using the temperature-controlled water circulator, with 10–60V applied across the tissue (for example, brain) at 37–50 °C for several days to clear the sample. The clearing process is faster at higher voltage and temperature, but requires more power, limiting the number of clearing set-ups simultaneously operable by one power supply (typical power output maximum, 300 W). For example, four set-ups can be run simultaneously at 37 °C and 30 V, whereas only two set-ups can be run at 50 °C and 60 V, so circulator temperature and voltage should be chosen to meet practical considerations. In addition, too-high voltage operation could cause bubble formation in the tissue and deposit of black particles on the surface of tissue. Therefore, low voltage (10–40 V) is recommended. Note that lipids and biomolecules lacking functional groups required for conjugation, such as native phosphatidylinositol 4,5-bisphosphate or exogenous dextrans used for labelling, may be lost during this process. (2) After several days, wash the sample twice with of PBST (0.1% Triton X-100 in 1× PBS) twice for 24 h each.
Preparing the sample for imaging: (1) Incubate the sample in FocusClear or 80% glycerol solution for 2 days before imaging; these have refractive indices matching that of clarified tissue. Ensure there is sufficient solution surrounding the sample, and that evaporative losses do not occur. Protect the sample from light. (2) Take a clean glass slide and gently place it on a dust-free surface. (3) Take a small piece of BluTack putty and prepare constant-diameter worm shapes using gloved hands. Make the thickness uniform and about 1.5× the thickness of the sample (for example, if the sample is 1 mm, make the putty tube diameter 1.5 mm). (4) Place two tubes of putty horizontally across the vertical slide, leaving space in between for the tissue sample. Cut excess putty that protrudes off the slide. (5) Using a spatula, carefully take the sample and place it between the putty tubes in the middle of the slide. Pipette ~20 µl of FocusClear medium on top of the sample. (6) Carefully place a Willco dish (with the lipped side facing up) on top of the putty tubes. Press down on the glass part of the dish (keeping fingers over the putty to avoid glass shattering) carefully and slowly until contact is made with the sample and FocusClear medium. Ensure that there are no bubbles between the sample, medium, slide and dish. (7) Using a P200 pipette, carefully introduce more FocusClear to either side of the sealed chamber (from the liquid that surrounded the sample for incubation as it has been optically matched). Take great care not to introduce any bubbles. (8) Now that the whole chamber is filled with FocusClear, use PDMS sealant (Kwik-Sil) across both vertical openings between the putty, dish and slide to fully seal the chamber and prevent evaporation. (9) Place aluminium foil on top of the chamber and place it on a level surface (shielded from light to minimize photodamage). Leave the sample for 10–15 min to allow the PDMS sealant to polymerize fully. (10) Preparation is now ready for imaging.
Chung K., Wallace J., Kim S.Y., Kalyanasundaram S., Andalman A.S., Davidson T.J., Mirzabekov J.J., Zalocusky K.A., Mattis J., Denisin A.K., Pak S., Bernstein H., Ramakrishnan C., Grosenick L., Gradinaru V, & Deisseroth K. (2013). Structural and molecular interrogation of intact biological systems. Nature, 497(7449), 332-337.
Publication 2013
3
Scalable Synthesis of Graphene Oxide
Typically, flake graphite (10 g), KMnO4 (6 g) and K2FeO4 (4 g) as the oxidants, and boric acid (0.01 g) as a stabilizer were first dispersed in 100 mL of concentrated sulfuric acid in a vessel and stirred for 1.5 h at less than 5 °C. After the addition of another KMnO4 (5 g), the vessel was transferred into a water bath at about 35 °C and stirred for another 3 h to complete the deep oxidation. Next, as 250 mL of deionized water was slowly added, the temperature was adjusted to 95 °C and held for 15 minutes, when the diluted suspension turned brown, indicating the hydrolysis and absolute exfoliation of intercalated graphite oxide. Finally, this brown suspension was further treated with 12 mL H2O2 (30%) to reduce the residual oxidants and intermediates to soluble sulfate, then centrifuged at 10000 rpm for 20 min to remove the residual graphite, and washed with 1 mol/L HCl and deionized water repeatedly, producing the terminal GO (designated GO2). For comparison, another GO (designated GO1) was synthesized following Kovtyukhova improved Hummers method20 , except two of little modification: (1) the ingredients were adjusted slightly, as shown in Table S1; (2) both preoxidation and oxidation time was set at 4 hours.
Yu H., Zhang B., Bulin C., Li R, & Xing R. (2016). High-efficient Synthesis of Graphene Oxide Based on Improved Hummers Method. Scientific Reports, 6, 36143.
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Publication 2016
ARID1A protein, human Bath Blood Vessel boric acid Graphite Hydrolysis Oxidants Oxides Peroxide, Hydrogen potassium ferrate Sulfates, Inorganic sulfuric acid Tooth Exfoliation
4
Yeast Genomic DNA Digestion and Analysis
Digestion of yeast genomic DNA overnight at 37°C with 5 units each of BamHI and AscI (New England Biolabs, NEB, Beverly, MA, USA) produced either a 3.2 kb BamHI wild-type sequence fragment (Figure 1B), or a 2.9 kb mutant fragment, resulting from introduction of the additional AscI site (Figure 1C). RNAse cocktail (0.25 μl, Ambion, Inc., Austin, TX, USA) was included in the digests to remove contaminating RNA. DNA was fractionated on a 0.8% Seakem GTG agarose gel (BMA, Rockland, ME, USA) in 0.5X TBE (44.5 mM Tris, 44.5 mM boric acid, 1 mM EDTA) followed by capillary blotting onto positively charged ZetaProbe GT nylon membrane (Bio-Rad, Hercules, CA, USA) in 10X SSC (1.5 M NaCl, 0.15 M sodium citrate, pH 7.0). The blot was hybridized using a standard protocol with 1 × 106 cpm probe per ml of hybridization solution [10 ]. The probe was a 683 bp ScaI-SfiI fragment located upstream of 5'HS5, and was radiolabeled using a DecaPrime II Kit (Ambion) in the presence of α-32P-dCTP (Amersham Pharmacia Biotech, Pisscataway, NJ, USA). Following two 15-minute washes [5% SDS, 20 mM sodium phosphate (pH 7.2)] the blot was exposed on a phosphorimager screen for three hours.
Harju S., Fedosyuk H, & Peterson K.R. (2004). Rapid isolation of yeast genomic DNA: Bust n' Grab. BMC Biotechnology, 4, 8.
Publication 2004
2'-deoxycytidine 5'-triphosphate austin boric acid Capillaries Crossbreeding Digestion Edetic Acid Genome Nylons Ribonucleases Saccharomyces cerevisiae Sepharose Sodium Chloride Sodium Citrate sodium phosphate Tissue, Membrane Tromethamine
5
Immunoprecipitation of Brain Proteins
Dynal tosylactivated M450 beads (Dynal No. 140.04) were covalently coupled with purified POM antibodies and M280 for plasminogen (Dynal No. 140.03). For the coupling reaction, 500 µl of beads were extensively washed in PBS and then resuspended in 1ml of coupling buffer (0.1M boric acid, pH = 9.5). 100 µg of purified Plasminogen or POM antibodies were added and the coupling reaction was performed with stark agitation at 37°C for 16hrs. After washing in PBS with 0.1% BSA, the reaction was stopped by incubating in 1ml of blocking buffer (0.2M Tris-HCl, pH = 8.5 with 0.1% w/v BSA) for 6hrs. 50 µg of brain proteins were diluted in 1ml of PAA buffer (PBS with 3%NP-40 and 3%Tween.20) with 20× protease inhibitors (Complete mini, Roche) and added on washed and magnetically collected beads without any liquid (corresponding to 10 µg of antibody coupled to 50 µl of beads). Beads were incubated with tilt rotation for 2hrs at RT and then washed extensively with PAA buffer. For the competition experiment, POM2, POM3 or POM6-coupled beads (corresponding to 5 µg of antibody coupled to 25 µl of beads) were preincubated for 1hr in RT with 1ml PAA with or without 40 µg/ml of peptides: QPHGGGW, for POM2 epitope or HNQWNK for POM3 epitope (negative control). Subsequently, 25 µg of brain proteins were added and incubated for 1hr at RT with rotation. Washed and magnetically collected beads were mixed with 20 µl of SDS-loading buffer. 10–30 µl of the protein solutions were used for western blot analysis.
Polymenidou M., Moos R., Scott M., Sigurdson C., Shi Y.Z., Yajima B., Hafner-Bratkovič I., Jerala R., Hornemann S., Wuthrich K., Bellon A., Vey M., Garen G., James M.N., Kav N, & Aguzzi A. (2008). The POM Monoclonals: A Comprehensive Set of Antibodies to Non-Overlapping Prion Protein Epitopes. PLoS ONE, 3(12), e3872.
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Publication 2008
Antibodies boric acid Brain Cardiac Arrest Epitopes Immunoglobulins Nonidet P-40 Peptides Plasminogen Protease Inhibitors Proteins Tromethamine Tween 20 Western Blot

Most recents protocols related to «Boric acid»

1
Boric Acid Supplementation in Lambs
Not available on PMC !
Boric acid was supplied from a commercial company (TEK-KIM, extra pure boric acid, TK.020.100.01002, Nilufer-Bursa, Turkey). The boric acid we used in the experiment was in solid form and we dissolved it thoroughly in the milk replacer (Ovilac Eurovo Milk Replacer, Societe Laitiere De Retiers À Retiers 35,240, Retiers, France) before giving it to the lambs. The boric acid levels used in the study are much lower than the LD50 levels (2660-4100 mg/kg).
Uysal S, & Yoruk M.A. (2024). Boric Acid in Milk Replacer as a Health Enhancer and Growth Promoter for Lambs in the Suckling Period. Biological trace element research.
Publication 2024
2
Boric Acid Adaptation in Fungal Strains
Not available on PMC !
After the initial evolution experiment, the protocol was modified in an effort to increase the propensity of replicates that were able to survive growth in higher levels of BA. We refer to this as the succeeding evolution experiment; this linguistic choice is twofold as the experiment was the second iteration and was ultimately effective for achieving our goal of continuing to passage a larger number of replicates to a higher level of boric acid. The succeeding evolution experiment was initiated by inoculating the evolved replicates that were frozen at -70 °C during the initial evolution experiment after two transfers in RPMI + 0.8 mg/mL BA (i.e., t4). The freezer culture was thawed and 2 µL of culture was inoculated into 200 µL RPMI + 0.8 mg/mL BA, and
(which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission.
The copyright holder for this preprint this version posted January 4, 2024. ; https://doi.org/10.1101/2024.01.04.574193 doi: bioRxiv preprint 8 grown overnight at 37 °C. A single replicate (ancestral strain P87, R6) went extinct after the second transfer of the initial evolution experiment (into 0.4 mg/mL, t2, Figure S1b) and was excluded.
To reduce the extinction rate, we reduced the incremental increase of BA concentration.
After one overnight in RPMI + 0.8 mg/mL BA, surviving replicates were sequentially grown in RPMI + 1.0 mg/mL, 1.25 mg/mL, 1.5 mg/mL, 1.75 mg/mL, 2 mg/mL, 3 mg/mL, and 4 mg/mL BA.
After RPMI + 1.5 mg/mL BA was reached, the number of transfers was changed from two transfers per drug concentration to five transfers. Also after the last transfer in RPMI + 1.5 mg/mL BA, we simultaneously transferred surviving replicates to wells that contained RPMI + 1.75 mg/mL BA and wells that contained RPMI + 2 mg/mL BA. Replicates of five strains (PGC75, P76055, T101, SC5314 and FH1) were unable to grow in RPMI + 2 mg/mL BA within eight days and were classified as group A strains, and the transfer into RPMI + 2 mg/mL BA was discarded. The majority (22 out of 24) of replicates from the other three strains (P87, P78048 and P75016) grew in RPMI + 2 mg/mL BA within eight days and were classified as group B strains, and the transfer into RPMI + 1.75 mg/mL was discarded. As in the initial experiment, cells were frozen down after the last transfer of each drug concentration. No replicates survived growth in RPMI + 4 mg/mL BA. Given the variation among strains in extinction trajectories (i.e., the number of replicates that survived through transfers in different BA concentrations), we chose to focus our phenotypic assessments on a subset of strains. For a balanced design, two strains from each group (Group A: FH1 and GC75; Group B: P75016 and P78048) were chosen. Four ancestral and four evolved replicates isolated from the terminal BA concentration for each strain were examined (FH1: 1.75 mg/mL, GC75: 2 mg/mL, P75016: 3 mg/mL, P78048: 3 mg/mL; Table 1).
(which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission.
The copyright holder for this preprint this version posted January 4, 2024. ; https://doi.org/10.1101/2024.01.04.574193 doi: bioRxiv preprint 9
Syvolos Y., Salama O.E., & Gerstein A.C. (2024). Constraint on boric acid resistance and tolerance evolvability in Candida albicans.
Publication 2024
3
Evolving Bacterial Resistance to Benzalkonium Chloride
Not available on PMC !
Ancestral strains were streaked from frozen stock onto SDA plates and incubated overnight at 37 °C. A loopful of colonies was transferred to 200 μL PBS, and standardized in (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission.
The copyright holder for this preprint this version posted January 4, 2024. ; https://doi.org/10.1101/2024.01.04.574193 doi: bioRxiv preprint 7 PBS to OD600 0.01. Twelve replicates ("ancestral replicates") were then initiated from each ancestral strain by transferring 5 μL of standardized culture into 195 μL RPMI in the twelve wells of the first row of a 96-well plate (i.e., each strain had its own plate). Plates were incubated overnight at 37 °C, and then 5 μL of overnight culture from each well was transferred into a well containing RPMI + 0.4 mg/mL BA in the second row. The plates were incubated statically at 37 °C and taken out every 24 h for an OD600 reading. When OD600 reached 0.3 (corresponding to visual turbidity in the medium and indicative of logistic growth), 100 μL of culture was transferred to fresh RPMI + 0.8 mg/mL BA, for a final concentration of 0.4 mg/mL BA, and returned to the incubator for continued daily measurement. When the culture again reached OD600 0.3, 100 μL was transferred into fresh RPMI + 1.6 mg/mL BA, for a final concentration of 0.8 mg/mL BA. The cultures were always transferred twice into the same drug concentration, followed by a transfer into medium containing double the previous amount. Wells that did not reach OD600 0.3 after eight days were considered extinct. Drug-evolved replicates were frozen down every second transfer i.e., before increasing the drug concentration. 53% of the replicates (51 of 96) were lost by the fifth transfer (t05) which was into RPMI + 1.6 mg/mL BA, and the remaining 45 replicates went extinct by the seventh transfer, into RPMI + 3.2 mg/mL BA.
Syvolos Y., Salama O.E., & Gerstein A.C. (2024). Constraint on boric acid resistance and tolerance evolvability in Candida albicans.
Publication 2024
4
Preparation of Sterile BA Stock Solution
Not available on PMC !
Molecular biology grade BA (Sigma-Aldrich, USA) was dissolved in ultrapure water (Gibco, USA) mixed until completely dissolved. The solution was sterilized by filtration through a 0.22-μm syringe filter to obtain a 100 mM sterile stock solution. The stock solution prepared BA at final concentrations in the growth medium.
Al Khalif O, & Sezer G. (2024). Concentration-Dependent Effects of Boric Acid on Osteogenic Differentiation of Vascular Smooth Muscle Cells. Biological trace element research.
Publication 2024
5
Boric Acid and Borax NMR Characterization
For the boric acid standard solution preparation, 1 mg, 1.5 mg, 2.5 mg, 3.5 mg, 5 mg, 7.5 mg, and 10 mg of weighed boric acid were dissolved in 0.5 mL of D2O.
For the borax standard solution preparation, 1.5 mg, 2.5 mg, 3.5 mg, 5 mg, 7.5 mg, and 10 mg of weighed borax were dissolved in 0.5 mL of D2O. All relevant standard solutions in the experiments of this paper were prepared without using pH buffer solutions.
11B NMR solutions of borax were prepared at various pHs: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. A weighed amount of borax was dissolved in a D2O solution, After borax had been completely dissolved, the pH of the solution was adjusted with NaOH or acetic acid. The pH detection of borax aqueous solution was carried out using pH precision test strips. For the 11B NMR study of borax solutions at various temperatures, 10 mg of borax was dissolved in 0.5 mL of D2O. The temperature control switch of the NMR spectrometer was turned on and an 11B NMR experiment was conducted after stabilizing at the target temperature.
Li Q., Yang Y., Wang Q., Han X., Zhu J., Zhang N., Wang Q., Li K., Gong P, & Chen F. (2024). 11B NMR of the Morphological Evolution of Traditional Chinese Medicine Borax. Molecules, 29(1), 251.
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Publication 2024

Top products related to «Boric acid»

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Sodium hydroxide is a chemical compound with the formula NaOH. It is a white, odorless, crystalline solid that is highly soluble in water and is a strong base. It is commonly used in various laboratory applications as a reagent.
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Methanol by Merck Group
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Sodium chloride (nacl) by Merck Group
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NaCl is a chemical compound commonly known as sodium chloride. It is a white, crystalline solid that is widely used in various industries, including pharmaceutical and laboratory settings. NaCl's core function is to serve as a basic, inorganic salt that can be used for a variety of applications in the lab environment.
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Sulfuric acid by Merck Group
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Sulfuric acid is a highly corrosive, colorless, and dense liquid chemical compound. It is widely used in various industrial processes and laboratory settings due to its strong oxidizing properties and ability to act as a dehydrating agent.
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Phosphoric acid is a chemical compound with the formula H3PO4. It is a colorless, odorless, and viscous liquid that is commonly used in various industrial and laboratory applications.
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Acetonitrile by Merck Group
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Acetonitrile is a colorless, volatile, flammable liquid. It is a commonly used solvent in various analytical and chemical applications, including liquid chromatography, gas chromatography, and other laboratory procedures. Acetonitrile is known for its high polarity and ability to dissolve a wide range of organic compounds.

More about "Boric acid"

Boric acid, also known as orthoboric acid or hydrogen borate, is a widely used chemical compound with a variety of applications in research, industry, and healthcare.
This weak acid, composed of boron, hydrogen, and oxygen, is renowned for its antiseptic, insecticidal, and antifungal properties.
Researchers can leverage PubCompare.ai's innovative AI-driven optimization platform to streamline the process of identifying the best protocols and products for boric acid-related studies.
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By utilizing this technology, researchers can conduct reproducible, accurate research on boric acid and achieve reliable results, while also saving time and resources.
In addition to boric acid, other commonly used chemicals in research and industry include sodium hydroxide (caustic soda), hydrochloric acid, methanol, acetic acid, ethanol, sodium chloride (table salt), sulfuric acid, phosphoric acid, and acetonitrile.
These substances have a wide range of applications, from pH adjustment and cleaning to solvent extraction and chromatography.
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With its AI-driven approach, the platform can help researchers navigate the complexities of boric acid-related studies, ultimately contributing to advancements in research, industry, and healthcare.